WO2009131253A1

WO2009131253A1 - Method for high speed plastic machining of metal component

Info

Publication number: WO2009131253A1
Application number: PCT/JP2009/058600
Authority: WO
Inventors: 尾崎康幸
Original assignee: 木村洋一; 渡辺崇記
Priority date: 2008-04-24
Filing date: 2009-04-24
Publication date: 2009-10-29
Also published as: KR101613326B1; WO2009130776A1; KR20110016869A

Abstract

Provided are a plastic machining method for forming a metal component having no defect, e.g. burr, in the form, a method of producing a metal component using the plastic machining method, a die and a processing machine for use therein, and metal components and an assembly thereof produced by using above-mentioned methods, die and processing machine, wherein environmental load is reduced over the whole life cycle of the metal components and the assembly thereof. A standard plastic machining speed is set up with reference to the n value of a metal material to be machined, a metal component having no defect in the form is formed by increasing the plastic machining speed over the propagation speed of a plastic wave in the metal material to be machined, and environmental load is reduced over the whole life cycle of the metal components by omitting the processing attached to the machining process.

Description

Specification

Name of Ming] High-speed plastic working method for metal parts

[Leakage field]

[0 0 0 1]

The present invention relates to metal pipe joints for pressure piping and related metal parts technology, and more particularly to plastic working of metal parts for which precision decoration is required.

[Background 誦

[0 0 0 2]

Patent references 1 and 2 describe in the technical field.

[Patent # 遞 1] Japanese Patent No. 3 5 9 6 8 0 4

[Patent Poem 2] Japanese Patent No. 3 8 7 4 5 3 3

[0 0 0 3]

'' In the technique of patenting, defects such as sagging, fracture cracks, burrs, and residual strain stress due to plastic processing of the metal material to be processed always appear. Therefore, in order to suppress the defect as much as possible, the workpiece is preheated Attaching processes such as preheating, cooling lubricant application, modification remedy to correct the problem, and degreasing and cleaning of the oil could not be omitted.

[0 0 0 4]

However, in the above-mentioned auxiliary treatments, for example, the consumption of resource energy and the increase in environmental burden due to the treatments and treatment products shown in Table 1 are inevitable.

【table 1】 Attached processing Processing equipment · Processing items Environmental load Pre-heating theory Heating furnace · Induction heating equipment · Forced Carcinogenic electromagnetic friction equipment by low frequency magnetic field and its resource energy pollution

Lugie consumption

Cooling Lubricant Cooling Lubricant · Mineral Oil · Additive Mineral Oil 'Nitrosamine Coating Treatment Agent · Solvent and Its Resource Energy Chlorine · Nitrite' Gee Consumption by Waste Oil Carcinogenic Environmental Pollution

Degreasing and cleaning treatment Washing machine 'VOC' Alternative chlorofluorocarbons' Environmental pollution caused by VOCs, local warming energy consumption due to alternative cleaning solvents and their resource enelon

Rehabilitation Flushing, liquid resin Environmental pollution from residual waste

M, i, barrel

Polishing machine

Rus 卜 'Scouring agent and its resources

Energy consumption

(Source: Prepared from IARC “Carcinogenic Risk Classification” by the International Organization of Cancer Stone)

[0 0 0 5] In addition, the spear technique of Patent ¾12 describes a technique for improving a metal material to be processed used for the metal part. However, in the processing site, for example, FIG. 12 (a) to (c) Breaking cracks as shown in Fig. 1 3 (a) (b) as shown in Fig. 3 or as a special note Reference: ¾ l paragraphs 0 0 0 5 to 0 0 14 I was worried about a serious accident that might have been caused by the above-mentioned trait defect in the hollow pipe. [0 0 0 6] For example, the above metal parts are usually wound on a seated joint as shown in Figs. 10 (a) to (e) by 5 1 primary thread. ≤: For example, as shown in Fig. 11 (a) to (d), contamination due to harmful chrome-colored burrs and metal powder falling off of accessory parts such as dish washers, or burrs and metals that have fallen off and scattered. There was concern about pressure loss of the pipe joint and fluid leakage accident due to powder adhering to the hollow pipe, and the improvement of the metal material to be processed was not sufficient. [0 0 0 7] The above-mentioned improved technical materials are intentionally hard to stop the use of harmful components exemplified in Table 2, for example. A technique for forming non-metallic inclusions in a metallographic structure is described.

[Table 2]

(Reference: “Carcinogenic Risk Classification Table” International Cancer Research Institute IARC)

Group 1 → Carcinogenic to humans.

Group 2 A → Probably human carcinogenic.

Group 2 B → Carcinogenicity to humans is suspected (Possibly).

[0 0 0 8]

However, in the above technique, intentional formation of non-metallic inclusions degrades the quality of the metal material to be processed, reduces the recycling rate of metal resources, and resource exploration in resource exporting countries that are unevenly distributed in the crust The environmental impact of mining, beneficiation, ironmaking and slag waste increased, and eventually the environmental impact of the entire metal material life cycle increased.

[0 0 0 9]

In recent years, metal materials provide services during use: SU, environmental load from collection of metal resources to production BP, environmental load BU during use, environmental load BE of waste treatment, deduction by recycling BR (1) High material-efficiency materials that increase SU and decrease BU

(2) Reduce BP «Boundary load history material, (3) Hazardous substance-free type material that increases BE, (4) Highly recyclable material that increases BR, (5) Increase SU BP + BU + BE- The concept of classifying high-efficiency materials that reduce BR (refer to “Material Research Outlook 2 0 0 5”, National Institute for Materials Science, Eco-Material Research Center) It has been proposed and the environmental impact of the entire life cycle of metal materials is considered.

[0 0 1 0]

Needless to say, there is a principle that “measures to reduce the environmental impact of a specific field to other fields are inappropriate for global environmental problems”. In particular, in the field of plastic processing of metal parts that continue to have a great impact, innovations that are not on the extension of έέ * improvement 謹 were required.

DISCLOSURE OF THE INVENTION

[Problems to be solved by the invention]

[0 0 1 1]

In view of the background art described above, the present invention provides a plastic working method for forming a metal part free from the above-mentioned trait defects, a method for producing a metal part using the plastic working method, a mold used for the implementation, a processing machine, and the like. An object of the present invention is to provide a metal part and an m¾ body manufactured using the above-mentioned, and to contribute to a reduction in environmental load over the entire life cycle of the metal part and lat body.

[Means for Solving the Problems]

[0 0 1 2]

Tensile tests are known to investigate metallic material properties. For example, in paragraphs 0 0 0 2 to 0 0 0 5 of Japanese Patent No. 2 9 6 0 6 4 7, the characteristics of materials such as the roughness of the cutting surface, burrs, work hardening, and processing temperature during the manufacture of tensile test pieces It is noted that shear properties and cut U properties that do not affect are important. However, for example, the above shear properties can be improved to some extent by the split top / bottom punching press or the so-called shaving follow-up process (cutting ij processing – impact, etc.). However, the consumption of processing energy is doubled in a multi-stage process, but at the same time, it has led to the elimination of the above-mentioned trait defects.

[0 0 1 3]

In recent years, there has been a demand for metal parts that are plastically processed under precise and severe conditions. It is necessary to understand the behavior of material properties in a wide range of strain rates from low strain rates to high strain rates corresponding to the above. For example, paragraphs 0 0 1 3 and 0 0 1 4 of Patent No. 3 7 6 9 1 7 5 However, there are no examples of applications in the metal plastic working field.

[0 0 1 4]

Considering the process of plastic working by pressing a metal material to be processed with a tool, the pressure-receiving surface of the processing site that receives external force is distorted, and stress waves propagate according to the distortion. The metal material is a crystal structure in which metal atoms that are thermally oscillated at the bottom of the potential well of the free electron cloud, which are not bound by atoms, are connected by a bond branch, and the stress wave is transmitted to the adjacent atom via the bond branch. Propagate. If the stress wave is smaller than the yield stress of the workpiece, it is a single wave, and the region where the elastic wave propagates is an 'I' crunch, and its propagation speed is the density of the workpiece metal, Poisson's ratio, Young It is known that the dislocation movement speed (= sound speed) depends on the rate, and that heat propagates at sound speed. If the movement of dislocations is hindered and a fixed zone is formed, the upper yield stress of the processed part increases. By leaving time after unloading the processed part, metal atoms diffuse and penetrate into the dislocations, and again form an anchoring zone to age harden.

(age-hardening) phenomenon occurs. On the other hand, when the stress wave force is greater than the yield stress, it is a plastic wave, and the region where the plastic wave propagates undergoes plastic deformation (= permanent shape), and its propagation speed is the work piece density, Poisson's ratio, work hardening index. Depends on (η value). However, since the η value varies with parameters such as strain and strain rate, the propagation speed of plastic wave cannot be defined uniquely. However, depending on the plastic working conditions, the speed was several orders of magnitude lower than the speed of sound, and the plastic working process had to be grasped as a plastic wave propagation process.

[0 0 1 5]

Considering the above-mentioned propagation process of plastic waves, the speed of plastic working by pressing a workpiece metal with a tool (plastic working speed) is faster than the propagation speed of plastic metal (^ force wave) of the workpiece metal Turn into When the processing is completed, the metal atom bond branch of the workpiece metal material is sheared before transmitting the stress wave due to the applied force to the adjacent atom, and the stress wave may have been propagated. Traits Defects can be eliminated. In addition, the compressive stress wave due to the pressure is reflected at the end of the workpiece, but when the part is at the free end, the incident compressive stress wave is reflected as a arched force wave, and the new skin and the body cover overlap. The stress in the region is canceled out by 0 shrinkage + tension according to the wave superposition principle). However, if the edge is constrained and processed, the compressive stress wave is incident and the compressive stress wave is reflected, and the area where the incident wave and the reflected wave overlap is twice as large (with compression + compression). The processing without the above-mentioned trait defect can be performed with a smaller external force (= processing energy consumption). When experimenting with many parts restrained at the processing site, it is not possible to define clearly, but at a plastic acceleration rate of about several hundred cm / sec to several m / sec, which does not significantly change the processing equipment, that is, As a result of the fact that the plastic working speed can be increased to be higher than the plastic wave propagation speed of the metal material to be machined, it is possible to eliminate the above-mentioned trait defects in a single working cycle, thus completing one aspect of the present invention.

[0 0 1 6]

In addition, trace impurities in the metal material and the non-metallic inclusions prevent the smooth movement of dislocations, form a clinch zone of dislocations, increase internal strain stress energy ^ ", and reduce the material shape and conductivity. As described above, there is a reaction that the environmental load of the entire metal material is increased as described above, and if such a metal material is used as a work material, more processing energy is consumed. Rather, the above-mentioned metal material to be processed should be made of a soft and highly conductive metal material with as few trace impurities and intentional alloying components as possible. It has been found that it is more advantageous to reduce the environmental load over the entire life cycle of the metal material to be processed by reducing the processing energy consumption and minimizing the deterioration of the quality of the processed product. Completed Other aspects of the invention Will be clarified in turn by the explanation in IV-3.

[0 0 1 7]

Claim 1 according to the present invention is a plastic part forming method for forming a metal part that is free from defects such as burrs, sagging, fracture cracking, and residual strain stress by machining using the workpiece metal material. The plastic working method of the metal part is a plastic that forms a metal part free from the above-mentioned trait defect by cold caloe without modifying the Caloe device for machining the metal material to be processed and without intentional preheating treatment. The plastic working method is a method of pressing at least the work metal material with a tool harder than the work metal material and plastic working the work metal material. Measures and manages the characteristics related to the index, sets a guideline for the plastic working speed by referring to the characteristics, restrains and fixes at least one end in the vicinity of the processing location of the metal material, and strains associated with processing at the processing location Deformation speed Depending on the tool that increases the speed, the strain deformation heat generation of the processing part is suppressed by the tool that reduces the plastic wave propagation speed of the Karoe area by suppressing the application, or by the tool that suppresses the frictional heat generation associated with the processing of the processing area, or Using a tool with two or more functions, based on the guideline, the plastic working speed is increased beyond the propagation speed of the plastic wave of the workpiece metal itself, and the plastic working is completed before the work site is age hardened.

(= Defined as high-speed plastic working) to form a metal part free from the above-mentioned trait defect, and to suppress the processing energy consumption of plastic working in the forming process of the metal part, and to provide cooling attached to the plastic working process Lubricant coating treatment, degreasing and cleaning treatment of the lubricating oil, and each additional processing such as a rationale for modification to improve the above-mentioned trait defects later are omitted, and the environmental load caused by the consumption and each additional processing is reduced. This is a high-performance processing method for metal parts.

[0 0 1 8]

Claim 2 according to the present invention provides a metal part manufactured using the high-speed plastic working method according to claim 1. A manufacturing method comprising: preparing the tool according to claim 1 and a mold including the tool; and attaching the mold to a processing machine that drives the mold under pressure; A manufacturing method for carrying out mass production of metal parts free from the above-mentioned trait defect by carrying out plastic processing with the die that is driven by calo-ffi- The processed material according to claim 1, wherein a material formed by rolling, drawing or extruding a metal material to a long length is used as a material to be processed, and internal residual strain stress generated in the process of forming the material is suppressed ^. The measurement of the material is performed to establish a guideline for the plastic processing speed, and the vicinity of the processing portion of the workpiece is constrained and fixed in as much area as possible, and the high-speed plastic processing according to claim 1 Mass production of metal parts free from trait defects A method for producing a metal part using a high-speed plastic working method according to claim 1, wherein the reduced environmental impact of claim 1, wherein the.

[0 0 1 9]

According to a third aspect of the present invention, there is provided a mold for use in the manufacturing method according to the second aspect, wherein the mold is driven by pressure by a processing machine and reciprocates between upper and lower dead centers; and A pair of upper and lower press dies comprising a lower mold fixing part that cooperates with an upper mold movable part and plastically processes a workpiece carried into the mold, and the press mold includes at least the upper mold A tool that pressurizes and plastically processes a workpiece on the movable part, a gripping part that grips the tool, an auxiliary part that transports the workpiece as necessary and restrains and fixes it at a desired position, and holds each part with high accuracy Oka (A high-efficiency material mold that has a lower density, a higher specific rigidity, and a higher specific heat than other types of gold in at least some of the components of the upper mold movable part in a press die having a J-type holding part. And at least some of the components of the tool contain rare heavy metal Using a harmful substance-free mold member that has a low density, a large specific rigidity, and a large specific heat in comparison with a hard member, and does not contain a harmful rare rare metal, and at least a part of the constituent members of the auxiliary part includes The high A vibration-absorbing member having a small vibration loss coefficient is selected and used from among the quality-efficient members, and the area of the portion where the auxiliary portion restrains and fixes the workpiece is increased as much as possible, and the assisting portion is The presser force for restraining and fixing the work material is made as small as possible, and the tip of the tool that comes into contact with the work material during the plastic working by the tool of the mold is set to the contact pressure area of the tip. Is the first means to make the tool shape gradually increase (= timing) force, second means to finish at least a part of the contact pressure surface of the tool into a mirror surface with a small surface roughness, A third means for coating at least a part of the contact pressure surface with a wear-resistant lubricating thermal insulation film having both a large hardness, a small number of friction and a large specific heat compared to the material of the tool member; The wear-resistant lubricating thermal insulation film is applied to the surface of the tool that has been surface-finished. A fourth means for forming a coating; if the Karoe machine is a crankshaft rotary processing machine with a pressure stroke curve in which the pressurizing speed for pressurizing the mold is zero and reverse at the top and bottom dead center, (= Timing) is set to the bottom dead center (= crankshaft rotation angle 180 °), and at least one of each means of the fifth means that shifts from the vicinity to the crankshaft rotation angle 90 ° Designed and manufactured by reducing the size and weight of the mold and consuming resources and energy when producing the mold.Contamination of harmful substances, distortion loss, motion loss, vibration loss, loss of wear, The high-speed plastic processing according to claim 1 is possible by reducing the environmental load caused by consumption, harmful contamination, each loss, and vibration, and at the same time increasing the plastic processing speed by a part of each loss reduction. The manufacturing method according to claim 2, characterized in that It is a press mold you are.

[0 0 2 0]

Claim 4 according to the present invention is a Karoe machine used in the manufacturing method according to claim 2, wherein the processing machine presses and drives a pair of upper and lower molds attached to the processing machine, A saddle processing machine that mass-produces metal parts formed by pressing and plastically processing a workpiece to be processed with a tool included in the mold, and the saddle processing machine fixes the lower mold of the mold. Fixing part to attach the part of the mold 8600

10 Movable part that moves on the street between upper and lower dead centers by attaching an upper mold movable part, a friction sliding surface that guides the reciprocation, a drive part that drives the movable part, and an I-type frame that holds the parts with high precision In the scissor processing machine provided with a part, at least a part of the constituent member of the movable part uses any one of the high material efficiency type member, the harmful substance free type member, and the vibration absorption type member according to claim 3, and at least 6. A sixth means for performing a mirror-like surface finishing process according to claim 3 on a part of the moving surface of the movable part, and at least a part of the frictional sliding surface according to claim 3. A seventh means for coating the lubricating thermal insulation film, and applying at least one or more of each means of the eighth means for coating the wear-resistant lubricating thermal insulation film on the mirror-finished surface; ii Design and manufacture xm with a small size and light weight. -Consumption. Contamination of harmful substances and the loss and environmental load as claimed in claim 3 at the time of processing, and at the same time, the plastic processing speed is increased by a part of the reduction of each loss. A processing machine for use in the manufacturing method according to claim 2, characterized in that high-speed processing according to claim 1 is possible.

[0 0 2 1]

A fifth aspect of the present invention is a method of manufacturing a metal part according to the second aspect, wherein the manufacturing method includes the metal working according to the second aspect, the mold according to the third aspect, and the calorie according to the fourth aspect. A manufacturing method that uses either or both of the lathes of an industrial machine, the manufacturing method comprising a long recyclable metal material that has been deliberately strengthened by deoxidizing a molten metal during the plastic working. A highly recyclable shaped material that has been rolled, drawn, or extruded into a material to be processed, and suppressing the internal residual strain stress of the material to be processed according to claim 2. Measurement and management of the workpiece material is performed to establish a guideline for the plastic working speed, and based on the guideline, at least a part of the outer shape of the metal part is transferred to the high-speed plastic working ability of the mold and the processing machine. Use one or both, and form a metal part with a mirror-like shape without the above-mentioned trait defects As well as production, the production E The environmental load according to claim 2 in the process and the environmental load throughout the entire life cycle of the workpiece to be processed are reduced, and the mold is claimed at the time of manufacture and use of the processing machine. 3. The method for producing a metal part according to claim 2, wherein the burden on either or both of claims 4 and 4 is reduced, and the total environmental load of the i process is reduced. [0 0 2 2]

Claim 6 according to the present invention is a metal part having no trait defect used for connection of a pressure piping circuit, and the metal part is a high-speed plastic working method according to claim 1, and a manufacturing method according to claim 2. A metal part that is produced using any one or more of the production methods according to claim 5 and has no trait defects, wherein the metal part contains a known harmful component of the highly recyclable metal material according to claim 5. 6. The harmful material-free mold material that has been eliminated, rolled, drawn, or extruded into a hazardous material-free shaped material is used as the work material, and the internal residual strain stress of the work material according to claim 5 is reduced. A measure of restraining removal and plastic working speed is set, and at least a part of the outer shape of the metal part is constrained and fixed based on the guide, and at least a part in the vicinity of the processed part of the workpiece is constrained and fixed. High-speed plastic working as described in items 1, 2, and 5. A mirror-like processed product free of the above-mentioned trait defects is formed by any one or more of the following, and then, at least a part of the surface of the processed product is a protective film that does not contain any harmful components, or the harmful components A metal part is manufactured by coating any one of the protective films excluding the inevitable component ratio or less, and the environment according to any one of claims 1, 2, and 5 in the manufacturing process. At the same time as reducing the load, the environmental load of the metal part is reduced over the entire life cycle by reducing the environmental load due to physical damage, harmful substances contamination, and loss of corrosion caused by the trait failure at the time of use and disposal of the metal part. There are 15 metal sounds that do not have the above-mentioned trait defects and are used for connecting pressure piping circuits.

[0 0 2 3] Claim ^{7 according} to the present invention is the metal part according to claim ⁶ , wherein the metal part is a metal pipe joint that is used for connection of a pressure piping circuit that pumps a fluid and does not have the trait defect, and the metal pipe The joint includes a hollow pipe having a round cross section with respect to the fluid pumping direction, a hollow space in the pumping direction, a crane for connecting the hollow pipe to another arrangement circuit, and the connection as necessary. , A groove part welded to another piping circuit, a joint surface tightly fitted to another piping circuit to prevent fluid leakage, a connecting screw part screwed to another piping circuit, and fluid leakage prevention A narrow groove portion for accommodating the elastic seal body to be sealed, a tightly fitted seal portion having an outer diameter smaller than the outer diameter of the connecting screw portion for preventing fluid leakage in cooperation with the elastic seal body, a locking nut and screw for pressing the elastic seal body 7. A metal pipe joint having a threaded part or the like for joining, wherein the metal pipe joint is described in claim 6. A high environmental efficiency solid material formed by rolling, drawing, or extruding a soft metal material that has been intentionally reduced in the additive components of the hazardous material-free metal material as a workpiece. 6. The suppression and removal of the internal residual strain stress of the work material described in claim 1, and a guideline for the plastic working speed, and based on the guideline, at least a part of the hollow pipe line, Is formed on the inner wall surface of the hollow pipe having a rounded cross section of the hollow pipe and free of the above-mentioned defect, and then at least a part of the connecting portion is formed on the basis of the guideline. A high-speed plastic working process according to any one of claims 1 and 5 is formed on the surface 15 of the mirror-like weaving 15 having a surface roughness Ra of about 6 m or less and free from the above-mentioned defects. 7. At least a part of the surface of the pipe joint, A metal pipe joint is manufactured by coating the protective film of the above, and at the same time as reducing the environmental load of any one of claims 1, 5, and 6 in the manufacturing process, at the time of disposal of use of the metal pipe joint The pressure loss and flow resistance loss caused by the above-mentioned trait defects, fluid leakage accidents due to each loss, pollution of harmful substances, reduction of environmental load due to corrosion disappearance, and the entire life cycle of the metal pipe joint 7. The metal pipe joint for metal parts according to claim 6, wherein the environmental load is reduced. [0 0 2 4]

An eighth aspect of the present invention is the metal part according to the sixth aspect, wherein the metal part includes a hollow pipe shaft having a smooth curvature due to the hollow of the metal pipe joint according to the seventh aspect. A metal bent pipe joint comprising: the soft metal material according to claim 7 formed in a long shape with a bow as a friend or an extrusion; the hollow pipe has a rounded cross-section and an inner wall surface of the hollow pipe The straight pipe material that is formed smoothly without unevenness is used as the work material, and the internal residual strain stress of the work material is reduced as described in claim 5. | 5 Estimate of iron and plastic working speed, 6. A straight pipe material to be processed is formed into a short straight pipe material having a desired length dimension without the above-mentioned trait defect by a high-speed plastic working process according to claim 1 or 5, and then the end face is Mirror surface straight pipe short material is restrained and fixed at least both ends of the straight pipe short material, and the hollow tube shaft compression direction 6. The intermediate portion of the straight pipe short member while being loaded is press-bended to form a hollow pipe shaft having a smooth curvature, and then at least a part of the connecting portion is formed based on the guideline. Is formed into a mirror-like connection surface having no surface defects with a processed surface roughness Ra of about 6 m or less, and then, at least one of the surfaces of the metal curved pipe joint is formed. A metal bent pipe joint is manufactured by coating the bell-proof coating according to any one of claims 6 on the part, and at the same time reducing the environmental load of any one of claims 1, 5, and 6 in the process , Reflection loss due to the hollow pipe shaft having the smooth curvature when the metal bent pipe joint is discarded, pressure loss and flow resistance loss due to the trait defect, and flow loss due to each loss Environmental impacts caused by accidents, pollution of harmful substances, and loss of corrosion Hesi, metal bent pipe fitting metal parts according to claim 6, characterized in that a reduced environmental impact over the entire life cycle of the metal bend fittings.

[0 0 2 5]

Claim 9 according to the present invention is the metal part according to claim 6, wherein the metal part is a primary of any one of the metal pipe joint according to claim 7 and the metal curved pipe joint according to claim 8. For assembly A hollow countersunk washer, which is a tightly fitted shiso with an outer diameter smaller than the outer diameter of the connecting thread of the joint! The inner peripheral surface is approximately ffi ¹ punched outer peripheral surface, a nut 加圧 pressed against a stopper nut that is screwed into the threaded portion of the joint, and an elastic seal body used in the primary fflji of the joint. A hollow dish washer provided with a smooth sealing seat surface that prevents leakage of fluid flowing in the joint pipe, wherein the hollow dish washer is a high height formed by rolling the soft metal material according to claim 7 into a long length. An eco-efficiency type metal plate material is used as a work material, and the internal shear strain stress of the work material is suppressed and removed as set forth in claim 5, and a guideline is set for the plastic working speed. At least the punched inner peripheral surface of the machined metal plate is restrained and fixed in the vicinity of the machining location However, by high-speed plastic working according to claim 5, the inner diameter dimension slightly smaller than the outer diameter of the joint connecting thread portion is formed on the mirror-like inner peripheral surface that does not have the above-mentioned defect, and then formed in the mirror-like shape. The inner diameter of the punched inner peripheral surface is increased to a diameter that is slightly larger than the outer diameter of the connecting thread, and the end of the punched inner peripheral surface formed in a mirror shape is hollowed so as not to break. 7. A hollow dish washer is produced by press-molding into a dish shape, and then coating at least a part of the surface of the press-molded product with any of the fenders according to claim 6. Claims in the production process 5 'Burden of male metal in the diameter reduction caulking process of the primary liJt of the joint at the same time as reducing the environmental load described in claim 6. Contamination, and the bar Reduces the environmental burden caused by pressure loss, harmful substance contamination, corrosion disappearance, and fluid leakage accidents when the joint primary body is used and discarded due to adhering to the inside of the joint, and the environment over the entire life cycle of the hollow dish washer The hollow dish washer for a metal part according to claim 6, wherein the load is reduced.

[0 0 2 6]

Claim 10 according to the present invention is the metal part according to claim 6, wherein the metal part is A metal pipe joint according to claim 7, and a lock nut used for a primary thread rod of a misaligned joint of the metal bent pipe joint according to claim 8, wherein the lock nut comprises a prismatic main body portion and the joint A lock nut comprising: a female thread portion to be screwed into a threaded portion; and a lock nut seat surface for pressurizing a nut seat surface of a hollow washer at one end surface of the main body portion, wherein the lock nut comprises: The suppression of internal residual strain stress of the workpiece according to claim 5, wherein the workpiece is an environmentally efficient solid element having a prismatic outer shape obtained by drawing or extruding a soft metal material in a long shape. 2. A solid shape without the above-mentioned trait defect of a desired wall thickness dimension by high-speed plastic working according to claim 1, wherein a standard of removal and plastic working speed is established, and a solid material to be machined is used based on the guide. A plate material is formed, and at least a pilot hole of the female screw portion is formed on the solid element based on the guide. The vicinity of the portion corresponding to the female thread portion of the plate material is constrained and fixed, and is formed into a mirror-like shape free of the trait defect by high-speed plastic processing according to any one of claims 1 and 5, and then the mirror-like shape based on the reference A mirror-shaped female thread without the above-mentioned defect is formed by the high-speed plastic processing according to claim 1 or 5 in the pilot hole formed in claim 1, and then on at least a part of the surface of the main body part. A stop nut is manufactured by coating any one of the protective coatings, and the environmental load of any one of claims 1, 5, and 6 in the manufacturing process is reduced, and at the same time, the joint threaded portion Threaded nuts in the primary assembly process.Environmental pollution caused by falling and scattering of broken cracked metal powder, and the joints caused by the metal powder adhering to the hollow pipe. Pressure loss when the primary assembly is discarded 7. The stop nut for metal parts according to claim 6, characterized in that the environmental load due to each of harmful substance contamination, corrosion disappearance, and fluid leakage accident is reduced, and the environmental load throughout the life cycle of the stop nut is reduced. It is.

[0 0 2 7]

Claim 11 according to the present invention is the metal part according to claim 6, wherein the metal part has a protruding piece-like shape that prevents the fastening nut from loosening at one end of the stopper nut according to claim 10. Elasticity of A seated stop nut comprising a flange seat and, if necessary, an inner periphery of the inertia flange seat, a ring storage portion for storing a split resin ring that pressurizes the elastic sealing body according to claim 9, The nut is a highly environmentally efficient solid material formed by drawing or extruding the soft metal material according to claim 7 in a long shape, and the inner residue of the workpiece according to claim 5 A guideline for suppressing strain stress and plastic working speed is established, and a solid material having a desired thickness thickness dimension is obtained by high-speed plastic working according to claim 1 using a solid material to be machined based on the guideline. A base plate is formed, and based on the guide, at least the inertia flange seat and the pilot hole of the female screw portion are constrained and fixed in the vicinity of a portion corresponding to the female screw portion of the solid base plate material, or 5. Any of the high-speed plastic processing described in 5 The mirror-shaped female screw thread free from the trait defect is formed by high-speed plastic processing according to claim 1 or 5 in a prepared hole formed in the specular shape based on the guide. After the formation, and then forming at least a part of the surface of the formed product with the protective coating of any one of claims 6 to produce a seated nut, and if necessary, in the ring storage portion, When pre-assembled by installing a split resin ring that is harder and has a smaller friction coefficient than a neutral seal body, the environmental load of any one of claims 1, 5, and 6 in the manufacturing process is reduced. At the same time, the tightening elastic force of the elastic flange seat with excellent stress relaxation resistance suppresses the loosening of the fastening when the fixed nut with the seat is used, or the use of the slit resin ring allows the plate washer and the plate washer to be The use of the strength-squeeze process is abolished, and the joint described in claim 10 is caused by the pressure loss at the time of use and disposal of the primary assembly, the contamination of harmful substances, the disappearance of corrosion, and the fluid leakage accident caused by the loosening of the fastening. The metal part seat stop nut according to claim 6, wherein the environmental load is reduced by reducing the environmental load and repairing the entire life cycle of the saddle stop nut.

[0 0 2 8] Claim 12 according to the present invention is a thread rod 3 body using the metal part according to claim 6, wherein the three-dimensional body is a metal pipe joint according to claim 7, and a metal curved pipe joint according to claim 8. An assembly using any of the pipe joints, wherein the assembly includes a groove for welding joint of the pipe joint, does not contain a known harmful component, or the harmful component is an inevitable component. The first means of assembling by welding the entire circumference to other metal pipes using welding materials excluded to below the ratio, and screw fastening the connecting thread part of the pipe joint to the other piping circuit main body screwed with the connecting thread part Then, the second means for obtaining the yarn 1 and the screw nut of the pipe joint are forwardly rotated and screwed together, and the pipe fitting is tightly fitted into the tightly fitting joint;! ^ Slightly smaller than the outer diameter of the connecting thread portion. Pass through a hollow washer with a large inner diameter to the inside, and reduce the diameter of the hollow dish washer so that there is no gap between it and the tightly fitting seal. Attach the elastic seal body according to claim 9 to the tightly fitting seal portion and granulate the seated pipe joint 1: ^, and then screw the other pipe circuit body to be screwed with the connecting thread of the seated pipe joint After that, in the third means for applying a preload to the elastic seal body through a washer which is reversely rotated by the reverse rotation of the stopper nut and squeezing the shrinkage force, the third means, the hollow dish washer according to claim 9, 10. Use a locking nut according to claim 10 or a locking nut according to claim 1 to agitate the seated joint, and then apply preload to the elastic seal body according to the third means. The environment according to any one of claims 7 to 11, corresponding to an environmental load caused by resource and energy consumption in the assembly process, an environmental load caused by contamination with harmful substances, and a metal part used for the assembly. At the same time as reducing the load, 7. The environmental load over the entire life cycle of the three yarn bodies is reduced by reducing the environmental load caused by pressure loss, disposal of harmful substances, loss of corrosion, and fluid leakage accident at the time of disposal. It is an assembly using metal parts.

【The invention's effect】

[0 0 2 9] Effect of the Invention of Claim 1

The metal part free of the trait defects can be formed by the high-speed plastic process using the tool according to claim 1, and at the same time, plastic processing energy consumption in the forming process, and resource energy consumption associated with each accessory process And the processing and manufacturing costs and environmental loads associated with each consumption can be reduced.

[0 0 3 0]

Effects of the invention of claim 2

The high-speed plastic working process according to claim 1 included in the manufacturing method according to claim 2 enables efficient mass production of metal parts free from the above-mentioned trait defects, and at the same time, claims for the mass production process. The environmental load described in Item 1 can be reduced, and the mass production cost and the environmental load can be reduced.

[0 0 3 1]

Effect of the invention of claim ³

By producing metal parts free of the above-mentioned defects by using the metal mold according to claim 3, resource energy consumption at the time of manufacturing the mold, harmful substances contamination, distortion loss at the time of using the mold, motion loss, vibration loss・ Each friction loss and consumption ・ Contamination of harmful substances ・ Each loss ・ Environmental impact caused by vibration noise can be reduced, and at the same time, the plastic processing speed is increased by a part of each loss reduction The high-speed plastic working according to claim 1 can be realized.

[0 0 3 2]

Effects of Quan blue claim 4 invention

By producing metal parts free of the above-mentioned trait defects by the processing machine according to claim 4, resource energy consumption at the time of the manufacture of the machine, harmful substance contamination, and claim at the time of processing balance Each loss and environmental load described can be reduced, and at the same time, a part of each loss reduction The plastic working speed can be increased to enable the high speed plastic working described in claim 1.

[0 0 3 3]

Effect of the invention of claim ⁵

In the manufacturing method according to claim 2, a metal part is manufactured by using a highly recyclable shaped material as a workpiece and using either or both of the mold according to claim 3 and the processing machine according to claim 4. Thus, the defect of the metal part can be solved, and at the same time, the environmental load according to claim 2 of the manufacturing process, and the environmental load over the entire life cycle of the workpiece, the mold It is possible to reduce the environmental load of either or both of claim 3 and claim 4 during the manufacture and use of the machine, and to reduce the environmental load of the life cycle of the metal part.

[0 0 3 4]

Effect of the Invention of Claim ⁶

The material to be treated is a harmful material-free shaped material, and the high-speed plastic working method according to claim 1, the manufacturing method according to claim 2, and the manufacturing method according to claim 5, The physical parts caused by the failure, physical loss due to the above-mentioned defects at the time of use and disposal of the metal parts, harmful substances contamination, environmental impact due to the disappearance of corrosion, bitumen claim 1, 2, 5 of the manufacturing process Any two or more of the described environmental loads can be alleviated, and the environmental load over the entire life cycle of the metal parts can be reduced.

[0 0 3 5]

Effect of the invention of claim 7

The work material is a high environmental efficiency solid material, and the metal pipe joint according to claim 7, wherein pressure caused by the character defect at the time of disposal of the metal pipe joint is eliminated. Any one of claims 1, 5, and 6 in the manufacturing process of the metal pipe joint, and each loss of flow resistance loss, fluid leakage accident due to each loss, pollution of harmful substances, environmental load due to loss of corrosion, and loss of corrosion Each of the above environmental loads can be reduced, and the environmental loads over the entire life cycle of the metal pipe joint can be reduced.

[0 0 3 6]

Effect of the Invention of Claim 8

9. The metal curved pipe joint according to claim 8, wherein the workpiece is a straight pipe material, the hollow pipe shaft having a smooth curvature is given to the straight pipe material, and the shape defect is eliminated. Loss of reflection due to the hollow pipe shaft with smooth curvature at the time, pressure loss due to the above-mentioned trait failure, and loss of flow resistance, leakage caused by each loss, pollution of harmful substances and corrosion Environmental load caused by disappearance, and the environmental load of any one of claims 1, 5 and 6 of the metal bent pipe joint manufacturing process can be alleviated, and the load over the entire life cycle of the metal bent pipe joint can be reduced. be able to.

[0 0 3 7]

Effect of the Invention of Claim ⁹

High work ring material! The hollow plate washer according to claim 9, wherein the metal plate material is a rate type metal plate, and the environmental load according to claims 5 and 6 in the manufacturing process of the hollow plate washer can be reduced, and at the same time, the joint primary assembly Burr in the plate washer in the diameter reduction caulking process in the steel plate · Prevents the falling and scattering of fractured cracked metal powder, prevents environmental pollution due to the falling and scattering, and adheres the metal powder into the hollow pipe of the joint. It is possible to reduce the environmental load caused by pressure loss, hazardous substance contamination, corrosion disappearance, fluid leakage accidents, and the life cycle of the hollow dish washer when the primary assembly of the joint is discarded. it can.

[0 0 3 8] Effects of the Invention of Claim 10

The workpiece according to any one of claims 1, 5, and 6 in the step of the lock nut according to claim 10, wherein the workpiece is a high-efficiency solid material, and the defect of the trait is eliminated. The environmental load of 2 or more can be reduced, and at the same time, the stopper nut is screwed into the joint threaded portion 6 3 f, and the burr of the stopper nut in the primary assembly process. The pressure loss at the time of use and disposal of the joint primary agglomerate due to adhesion and contamination of the metal powder into the joint hollow pipe, pollution of harmful substances, corrosion disappearance, and environmental load due to fluid leakage accidents Each can be reduced, and the environmental load over the entire life cycle of the nuts can be reduced.

[0 0 3 9]

The effect of invention 1

Claims 1, 5, 6 in the manufacturing process of the seated nuts according to claim 11, wherein the workpiece is made of a highly environmentally efficient solid material and eliminates the above-mentioned trait defect. Any of the listed two or more environmental loads can be reduced, and at the same time, the fastening elastic force of the inertia flange seat, which has excellent stress relaxation resistance, can be used to suppress the loosening of the fastening nut with the seat, and to perform the split measurement. The use of the scent ring 9 1 eliminates the use of the plate washer and the diameter reduction of the plate washer, and the caulking process is abolished, and the pressure loss and harmfulness at the time of disposal of the joint primary assembly according to claim 10 It is possible to reduce the environmental load due to the fluid leakage accident caused by contamination, corrosion disappearance and loosening of the fastening, and to reduce the environmental load over the entire life cycle of the seated nut. -

[0 0 4 0]

Effects of the inventions of Claims 1 and 2

The air body according to claim 12 is a metal pipe joint according to claim 7, or a metal bend according to claim 8. It is a pipe joint, a hazardous material-free welding material, a primary aiz of each pipe joint, or a hollow IfflJ gold according to claim 9 in the primary ia¾ step, a set nut according to claim 10, By assembling using any of the fixed nuts with a seat described in Item 11, the environmental load due to the consumption of resource energy in the assembly process, the environmental load due to harmful substances contamination, and the metal parts used in the assembly The environmental load according to claims 7 to ι 1 can be reduced, and at the same time, the ai: pressure loss at the time of use and disposal of the body, contamination of harmful substances, disappearance of corrosion, and fluid leakage accident can be reduced. & Environmental load over the entire life cycle of the product can be reduced. [Brief description of the drawings]

[0 0 4 1]

FIG. 1 (a) is a conceptual diagram for explaining the high-speed plastic working method of the present invention, and is a conceptual diagram for explaining the structure of the mouth of the metal material to be processed.

FIG. 1 (b) is a conceptual diagram illustrating the high-speed plastic working process of the present invention.

FIG. 2 is a conceptual diagram illustrating a manufacturing method using the high-speed plastic working method of the present invention.

FIG. 3 is a schematic cross-sectional explanatory view illustrating the mold of the present invention.

FIG. 4 (a) is a schematic cross-sectional explanatory view illustrating the processing machine of the present invention.

Fig. 4 (b) is a schematic explanatory diagram illustrating the relationship between the pressurization stroke curve and the machining speed of a general-purpose crankshaft rotary type machine.

FIG. 5 (a) is an explanatory view for explaining the metal pipe joint of the present invention, and is a schematic external half-section explanatory view for explaining the first embodiment.

FIG. 5 (b) is a schematic cross-sectional explanatory view for explaining the first embodiment.

FIG. 5 (c) is a schematic external photograph explanatory view for explaining the second embodiment.

FIG. 5 (d) is a schematic sectional photograph explanatory view for explaining the second embodiment.

FIG. 5 (e) is a schematic external photograph explanatory view for explaining the third embodiment. FIG. 6 (a) is a schematic explanatory view for explaining the metal bent pipe joint of the present invention, and is a schematic external photograph explanatory view for explaining the first embodiment.

FIG. 6 (b) is a schematic sectional photograph explanatory view for explaining the first embodiment.

FIG. 6 (c) is a schematic external photograph explanatory view for explaining the second embodiment.

FIG. 7 is a schematic external photograph explanatory view for explaining the dish washer of the present invention.

FIG. 8 is a schematic external photograph explanatory view for explaining the retaining nut of the present invention.

FIG. 9 (a) is a schematic external top view illustrating the seated retaining nut of the present invention.

FIG. 9 (b) is a schematic external cross-sectional explanatory view for explaining a locking nut with a seat.

FIG. 9 (c) is a schematic explanatory view for explaining a split resin ring to be attached to the locking nut with the seat as required.

FIG. 10) is a schematic photograph explanatory view for explaining the fine primary of the seated pipe joint, and is the name of each part of the pipe joint subjected to the colored chromate treatment.

FIG. 10 (b) is a schematic external photograph explanatory view for explaining the cap fitting process for protecting the closely-fitted sheet surface and preventing foreign matter from being mixed in the primary assembly.

FIG. 10 (c) is a schematic external photograph explanatory view for explaining a screwing process in which the locking nut of the primary assembly is rotated forward and screwed.

FIG. 10 (d) is a schematic external photograph explanatory view for explaining a diameter reduction caulking process in which the plate washer of the primary assembly is inserted and the diameter is caulked to close fit !! / ¾.

FIG. 10 (e) is a schematic external photograph explanatory diagram for explaining the mounting process for mounting the first-order elastic seal body (0-ring).

Fig. 11 (a) is a schematic photo illustration explaining the environmental contamination of the primary M: plate washer cramping force squeezing process, and is a cascading external view illustrating the structure of the plate washer and force squeeze punch. FIG. Fig. 1 1 (b) illustrates the harmful effects of colored chromate treatment of the plate washer used in the primary assembly. FIG.

Fig. 11 (c) is a schematic photo explanatory view explaining the harmful chromate-colored metal powder used in the primary assembly or attached to the shim punch.

Fig. 11 (d) is a schematic photo explanatory view explaining the environmental pollution situation in which burrs and metal powder of harmful chromate-colored dish washers were dropped and scattered in the same plate washer diameter reduction caulking process.

Fig. 12 (a) is a schematic photograph explanatory diagram illustrating a fracture fracture accident when heating a low-grade carbon steel pipe joint.

Fig. 12 (b) is a schematic metal cross-sectional structure photograph explaining the metal paper analysis result of the fractured part.

Fig. 12 (c) is a schematic photograph explanatory drawing explaining the SEM photograph and the surface analysis result of the fracture surface when cold-rolling a conventional carbon steel pipe joint.

FIG. 13 (a) is a schematic photograph explanatory view for explaining a helical calorie when a hollow pipe of a carbon steel pipe joint of a final example is drilled.

FIG. 13 (b) is a schematic photograph explanatory view for explaining an example in which the processed surface of each part of the pipe joint is evaluated with a surface roughness comparison standard piece.

FIG. 14 is a schematic external cross-sectional explanatory view for explaining an embodiment of the assembly of the present invention.

[Explanation of symbols]

[0 0 4 2]

1 Tool used for plastic working, tip of la tool, l tool base, abutting pressure surface where lc tool abuts work piece, pressure vector where V tool pressurizes work material, F 1 Constraint fixing part of workpiece, F2 Constraint fixing part as much as possible, 2 A mold with tool 1, 2B mold of the present invention, 3 gripping part (punch block etc.), 4 auxiliary part (Strippers, etc.), 5 Auxiliary parts (Panels to be added) 6 Oka I part (Die set) (Rate, guide post, etc.), 7 Upper mold movable part, 8 Lower mold fixed part, 9 Scrap hole, 10 Processing machine (Press machine etc.), 11 Fixed part (Porsu Yue etc.), 12 Movable part (Slide etc.), 13 Drive part (crank, etc.), 14 Oka IJ frame part (frame, etc.), 15 Friction sliding surface (slide and slide guide interface, etc.), 16 Rotational motion vector of the crankshaft by drive mode, 17 Reciprocating vector between top and bottom dead center of moving part, pressure stroke curve of 18 crankshaft rotary processing machine, low-speed pressurization range of conventional crankshaft, 19 high speed according to the present invention of the same pressure stroke curve Pressurized area, 60 Metal pipe fittings used for connection of pressure piping circuits (Elpo-type metal pipe fittings, etc.) 61 Hollow pipes formed in a mirror shape because fluid is pumped,

62 Hollow pipe shaft along the direction of fluid pumping, 63 Connection for connecting hollow pipes of metal pipe joints to other piping circuits, 63b Sheet surface formed in a mirror shape to fit closely to other piping circuits 63c Connection thread formed in a mirror surface for screw fastening to other piping circuits

63d narrow groove formed in a mirror shape to accommodate the elastic seal body,

63e In order to prevent fluid leakage by cooperating with the elastic seal body, a close fitting formed in a mirror surface shape with an outer diameter smaller than the outer diameter of the connecting screw part 63f For screwing with a stop nut 押圧 for pressing the elastic seal body Threaded part formed in a mirror shape, 64 metal curved pipe joint, 65 hollow pipe line to which fluid is pumped, 66 hollow pipe shaft with smooth curvature along the fluid pumping direction,

67 Connections for connecting hollow pipes of metal bent pipe joints to other piping circuits, 70 Hollow dish washers,

70a Punched inner peripheral surface, 7 Ob punched outer peripheral surface, 80 Stop nut,

80a prismatic body part, female thread part formed in a mirror-like shape to be screwed into the threaded part of the 8 Ob fitting, locking nut seating surface that can be applied to the washer used for the 80c fitting,

90 Locking nut with seat, 90a prismatic body, 9 Threaded female threaded part of the locking nut with 90 Ob, 90c female screw shaft, 90d Elastic flange seat to prevent loosening of nut, 90e Replacement of hollow washer Contains a split resin ring for use in Ring housing, 9 1 Slotted resin ring, 1 0 0 High-speed plastic working (process, method), 2 0 0 Work material (metal material), 2 0 1 machining location, 2 0 1 a Distortion deformation of machining location Speed (= plastic working speed of the tool), 20 0 lb sheared metal atom bonds,

2 0 2 Workpiece parts other than the machining location, 3 0 0 Workpiece internal strain strain correction removal device (leveler, strain relief annealing device, etc.), 4 0 0 High-speed plastic machining 1 Metal parts caloe machine using 0 0, 5 0 0 a High speed plastic working method 1 0 0 Metal parts manufacturing method,

5 0 Ob Metal mold 2B, Karoe machine 1 0 Metal parts manufacturing method using one or both,

6 0 0 Assembly, 7 0 0 Other piping circuit main body, 7 0 0a Hollow piping of other piping circuits

[0 0 4 3]

BEST MODE FOR CARRYING OUT THE INVENTION For the sake of simplicity of explanation, the best embodiment of the present invention will be described with reference to photo explanatory views of metal pipe joints for pressure piping and related accessories.

[0 0 4 4]

About claim 1

With reference to FIGS. 1 (a) and 1 (b), the best embodiment of the high-speed plastic working step 100 of the present invention will be described. High-speed plastic working process 1 0 0, for example, drastically changes the drive ^: of the processing equipment such as a cutting I machine or press machine, or replaces the metal material 2 0 0 with a surface lubricating film coated composite material In addition, due to cold working without intentional preheating treatment such as forced friction and high-frequency induction heating, trait defects such as burrs, sagging, fracture cracks, and residual strain stress that were unavoidably caused by conventional machining Form and implement metal parts without The metal material to be processed 200 is selected from a group of practical metals such as Fe and Fe alloys, Cu and Cu alloys, A1 and A1 alloys, etc. Can be selected and implemented from a group of hard members such as alloy steel, tool steel, high speed steel, cermet, cemented carbide, ceramics, etc. Yes. ^ S The measurement of, for example, the slope of the characteristics related to at least the work hardening index (n value) of the workpiece metal material 2 0 1 when the machining location 2 0 1 of the workpiece metal material 2 0 1 is plastically processed by the tool 1 With reference to the characteristics, a guideline for the plastic working speed of 20 la is established, and at least one end near the Karoe location 2 0 1 of the metal material 20 0 is constrained and fixed, for example, as F 1 in FIG. The processing stress consumption is reduced by reflecting the accompanying compressive stress wave as I stay wave and superimposing the incident wave and the reflected wave. The n value can be obtained through a JIS Z 2201 tensile test, for example, by the method of the standard (JIS Z 2241). In addition, in the plastic processing, for example, the surface roughness of the tool surface is finished in a mirror shape, the tip shape of the tool is rounded, the cutting edge is sharpened, or the plastic processing amount per processing cycle is reduced. If the tool 1 has a function to increase the speed of the deformation at the machining location 2 0 1, or the machining location 2 0 1 The machining location of 1 due to the phenomenon of machining softening of the tool 2 0 1 The tool 1 has a function to reduce the plastic wave propagation speed of 1 or is coated with a lubricant film with a small friction coefficient on the tool surface. Friction with 2 0 1 Perform using tool 1 with function to suppress heat generation. Preferably, with the tool 1 having two or more functions, the plastic working speed 20 la is set to, for example, the number 10 0 or more higher than the propagation speed of the plastic wave of the metal material to be processed 200 based on the guideline. c Increase the speed to about mZsec to several mZsec, and complete the plastic working before the age of the calorific machined part 20 1 is age-hardened (= high-speed plastic working 1 0 0). Before the bond branch of atoms propagates the plastic wave due to processing, the bond branch 2 0 1 b is sheared and formed without causing the trait defect, which would have resulted from the propagation of the saddle stress wave. Suppress the processing energy consumption of plastic processing in the metal part forming process, and perform each additional processing such as cooling lubricant application processing, degreasing cleaning processing of the oil processing, and ί 用 for modification. Omission of abolition and consumption. It is important be performed Hesi. In short, The high-speed plastic working 10 in which the plastic working speed at the time of plastic working a metal material to be machined is increased without significantly modifying the other machining apparatus conditions and workpiece material conditions. In addition to forming metal parts that do not have the above-mentioned structural defects, the consumption of processing energy and the consumption of resources and energy associated with each of the attached processes are suppressed, and the processing and manufacturing costs and burdens of each of the consumptions are combined. It is important to reduce and implement.

[0 0 4 5]

About claim 2

With reference to FIG. 2, the best embodiment of the metal part manufacturing method 5 0 0 a using the high speed plastic working 1 0 0 according to claim 1 will be described. The manufacturing method 50 O a is prepared by preparing the tool 1 according to claim 1 and a mold 2A including the tool 1, and carrying the workpiece 2 0 0 into the mold 2A attached to the processing machine 400. The metal working machine 400 is press-driven by the mold 2A, and the workpiece 2200 is plastically processed by the press-driven metal mold 2A to mass-produce metal parts free of the above-mentioned defect. carry out. Die 2A is for example, a well-known forging die such as forging or rolling, or press die for punching, bending, crushing, drawing, forming, etc., and mounting the die 2A The machine 400 may be implemented using, for example, a general-purpose press machine. The workpiece 20 is a material formed by rolling, drawing or extruding the above-mentioned practical metal material in a long length, and the workpiece 200 is treated, for example, by a leveler, a strain relief annealing device or the like. It is desirable to increase the mass production efficiency by using the apparatus 300 to suppress and remove the internal residual strain stress generated in the process of forming the workpiece 200. In FIG. 2, the work material 200 is an example of a coil material such as a wound plate / strip / wire, but it may be another rod shape, for example, in this case, for example, distortion of frequency induction heating It is good to carry out using a pre-annealing device. At the time of high-speed plastic working 100, measure and manage at least the n value and the inclination of the workpiece 200 as described in claim 1, and refer to the n value and the inclination as a guideline for the plastic working speed. And place the workpiece 2 0 0 As shown in FIG. 1, the vicinity of 2 0 1 is increased as much as possible by, for example, restraining and fixing F 2 in addition to F 1, and the high-speed plastic working 1 0 0 according to claim 1 It is important to efficiently mass-produce metal parts that are free of defects and to reduce the environmental burden according to claim 1 in the mass production process. In short, the metal parts that do not have the above-mentioned trait defects can be achieved by increasing the plastic working speed when pressing, forging, forging, rolling, pressing, etc. It is ffF'L to carry out mass production efficiently and at the same time reduce the environmental load according to claim 1 in the mass production process 500 a and reduce both the mass production cost and the environmental load. .

[0 0 4 6]

About claim 3

Conventionally, hard alloys have been frequently used for tools subjected to large loads, and iron or iron alloys have been used for molds equipped with such tools. .

With reference to FIGS. 3 and 4, the best mode of the mold 2B of the present invention used in the manufacturing method of claim 2 will be described. The mold 2B is loaded by the upper mold movable part 7 that reciprocates between the upper and lower dead centers by being driven by the Karoe machine 400, and is carried into the mold 2B in cooperation with the upper mold movable part 7. Further, the workpiece 20 is formed into a pair of upper and lower press dies 2B composed of a lower die fixing portion for plastic working. The press die 2 B includes at least the upper mold movable part 7, a tool 1 such as a punch for pressing and plastically processing the workpiece 200, a gripping part 3 such as a punch block for gripping the tool 1, Auxiliary part 4 such as a stripper that transports the workpiece 2 0 0 and restrains and fixes it at a desired position as required, and an auxiliary part 5 such as a heated panel, a die plate and a guide plate that hold each part with high accuracy. It is configured to have Oka I 胜 holding part 6 etc. such as strike.

[0 0 4 7]

The press die 2B of the present invention is a constituent member of at least the upper mold movable portion 7 of the press die 2B. As a part of the material, «High material efficiency type material with low density, large ratio of 1 oka and large specific heat compared to commonly used iron or ^ & gold, and at least a part of the components of tool 1 In addition,

«Compared to hard alloys containing rare heavy metals that are frequently used, the auxiliary part uses a harmful material-free type member that has a low density, a large specific rigidity, a large specific heat, and does not contain any known harmful rare heavy metals. The vibration absorbing type member having a small vibration loss coefficient among the high material efficiency type members is used as at least a part of the constituent members of 4 and 5. Here we explain the material properties and their functions. The density is the mass per unit volume, and a structure with a lower density has the effect of reducing the motion loss of the structure. Specific rigidity is an index obtained by dividing the modulus of elasticity (Young's modulus) by density. A structure with a larger index is more advantageous in reducing the size and weight by suppressing strain loss and has better vibration absorption. It has the effect of suppressing the consumption of natural energy and the movement loss, vibration, and I compensation when the structure is in operation. Specific heat is the amount of heat necessary to raise the temperature of 1 gr of material by 1 ° C. A structure with a higher specific heat has a greater heat insulation effect and has the effect of suppressing thermal expansion deformation. Specifically, according to Table 3, as the high material efficiency type member, for example, metal Be, Be—A1-based alloy, metal Al, Al—Si-based alloy, metal i, Ti, which have both the highest specific I property and the highest specific heat. A material such as Mg alloy, metal Mg, Mg-Al alloy, or multi-component alloy containing these light metals is suitable, but it is not limited to these, for example BeO, A1 ₂ 0 ₃ , ZrO

It may be carried out by applying a composite reinforcing member such as a ceramic containing oxide such as _{2 and the} like, a composite member thereof, an amorphous member, a whisker-sinter strengthening member, or the like. Also, as the harmful substance-free mold member, a ceramic member that does not contain harmful rare heavy metals such as W, Mo, Cr, Ni, and Co, or a sintered reinforced sound material thereof, a diamond member, a cBN member, a cermet member, etc. Good. The vibration absorbing member may be measured by performing measurement according to the US military standard MIL-P-22581B from the group of high material efficiency members and calculating the vibration loss coefficient. In this way, press die 2B is reduced in size and weight and designed and manufactured. Press die 2B Resource energy consumption and harmful substance contamination during production, and distortion loss, motion loss, vibration noise, and harmful substance contamination when using the press die 2 B are reduced, and at the same time, the plastic 14 It is essential that the high-speed plastic processing 1 0 0 according to claim 1 is carried out at a higher speed by increasing the speed.

[Table 3]

(Source: Density and specific heat are scientific chronological data, but Hioka is an index of Young's modulus divided by density)

[0 0 4 8]

Further, when the press die 2B includes auxiliary portions 4 and 5 such as a stripper and a workpiece pressing block as required, the portion where the auxiliary portion 4 restrains and fixes the workpiece is, for example, made of the workpiece. Increase the area to be restrained and fixed as much as possible along the surface to be constrained, etc., or add the auxiliary part 5: change the panel constant of the panel to a relatively smaller spring constant Therefore, it is envisaged that the processing energy consumption, strain loss, motion loss, and vibration noise are suppressed.

[0 0 4 9]

In addition, Tool 1 is implemented by the following measures. That is, for example, the tip 1 of the tool 1 is made thinner than the base lb or is rounded so that the tool 1 comes into contact with the workpiece 2 0 0 The first means of increasing the plastic working speed of the tool 1 and suppressing the vibration noise generated at the contact moment by gradually increasing the area to be touched from the contact moment. Tool 1 Surface contact pressure surface lc is at least partly finished into a mirror surface with a small surface roughness, for example by lapping, to reduce loss of wear on the contact pressure surface 1 c. Second means to do. For example, a wear-resistant lubricating thermal insulation film having a hardness higher than that of the material of the tool 1, a small friction coefficient, and a large specific heat is selected from at least a part of the contact pressure surface 1c from Table 4, for example. A third method to reduce friction loss by coating with the known plating method, ceramic coating method, PVD method and CVD method. Preferably, a fourth means for further reducing loss of wear by coating the wear-resistant I-lubricated thermal insulation coating on the surface of the mirror-finished tool 1. For example, the press speed of the Karoe machine is zero and reverse at the top and bottom dead centers, such as a general-purpose press machine. The effective length of the tool 1 is increased by interposing a spacer with a desired thickness underneath, and the contact pressure moment (timing) of the tool 1 is set to the bottom dead center (crankshaft rotation angle 1 The fifth means for increasing the plastic working speed of the tool 1 by shifting from the low speed range of the vicinity 18 to the high speed range of the rotation angle 9 0 ^{0 and} 1 9. At least one of these means without significant equipment modification, preferably as much as possible, and design and manufacture press die 2 B with a smaller and lighter weight, and resource energy consumption during production of die 2 B · Hazardous material contamination, distortion loss when using the mold 2B · Motion loss · Vibration loss · Friction loss and consumption · Hazardous material contamination · Each loss · Environmental impact caused by peristaltic noise At the same time, the speed of the plastic working is increased by a part of each loss reduction, and the high-speed plastic working 100 according to claim 1 is made to be possible and can be achieved.

Below margin [Table 4]

[0 0 5 0]

About claim 4

With reference to FIGS. 4 (a) and (b), the best embodiment of the processing machine 10 of the present invention used in the manufacturing method according to claim 2 will be described. FIGS. 4 (a) and 4 (b) are examples of a general-purpose crankshaft rotary type squeezing machine, but for example, a thermomotor drive type or an electromagnetic direct acting type press machine may be used. The processing machine 10 of the present invention pressurizes and drives a pair of upper and lower molds attached to the processing machine 10, and uses the tool of the mold to move the workpiece 20 0 carried into the mold. The forging machine 10 is used in a metal part machine 400 that is pressed and plastically processed. The g £ E processing machine 10 has a fixed part 11 such as a pors evening to which the lower mold fixing part of the mold is attached, a slide that reciprocates between the upper and lower dead centers by attaching the upper mold movable part of the mold. A movable part 1 2, a drive part 1 3 such as a crank for driving the movable part 1 2, an Oka I 胜 frame part 14 such as a frame that holds the Oka I 胜 structure of each part, a slide associated with the reciprocation and the slide It is configured to have a friction surface 15 such as a sliding surface of a slide guide disposed on the rigid frame 14. As in the embodiment of claim 3, the scissors processing machine 10 has at least a part of the constituent parts of the movable part 12 as a high material efficiency type member according to claim 3, a harmful substance free type member, a vibration absorption type. Using any of the members, at least the movable A sixth means for subjecting a part of the friction sliding surface 15 of the part 12 to a mirror-like surface finishing process according to claim 3, wherein at least a part of the friction surface 15 is provided with the wear-resistant lubrication heat insulation. One or more, preferably as many as possible, as a seventh means for forming an enormous coating, or as a means for coating and forming a wear-resistant lubricating thermal insulation film on the mirror-finished surface. The i¾ processing machine 10 is designed and manufactured by reducing the size and weight, and the cocoon processing machine 10 consumes resource energy at the time of manufacture, contamination with harmful substances, and the forging machine 10 In addition to reducing each loss and environmental load, at the same time, the high-speed plastic working step 100 according to claim 1 may be carried out as much as possible by increasing the plastic working speed by a part of each loss reduction. It is.

[0 0 5 1]

About claim 5

With reference to FIGS. 4A and 4B, the best embodiment of the production method 50 0b of the present invention will be described. The manufacturing method 50 0b is carried out by using the press die according to claim 3 in the plastic working according to claim 2, and preferably using the press machine 10 according to claim 4. It is good to carry out using both 2B and the machine 10. Manufacturing method 50 Ob was deliberately strengthened the high-quality deoxidation treatment of the molten metal using a deoxidizer with high generation energy such as Ti ₂ O ₂ at the time of the plastic working. A highly recyclable shaped material that has been rolled, drawn, or extruded from a highly recyclable metal material is defined as a material to be treated 200, for example, non-metallic inclusions as shown in Fig. 12 and Fig. 13. At the same time, it is important to reduce the environmental load over the entire life cycle of the material to be processed by suppressing the increase in the environmental load of the exporting country of the resource at the same time. The manufacturing method 500b includes the suppression and removal of internal residual strain stress of the metal material to be processed 200 as described in the embodiment of claim 5, and the plastic working speed of the metal material to be processed 200 Establish a standard, and based on the standard, outline of metal parts A metal part is manufactured by forming at least a part of the shape into a mirror surface without any of the above-mentioned trait defects using either the press die 2 B or the I 赃 processing machine 10, preferably using both high-speed plastic working capabilities The environmental load of claim 2 in the manufacturing process, and the environmental load over the entire life cycle of the workpiece shape material 200 are reduced, and the mold 2 B. at the time of manufacturing the processing machine 10 and It is important to reduce the environmental load of either one or both of claims 3 and 4 during use and reduce the total environmental load of the manufacturing process 500 b.

[0 0 5 2]

About claim 6

For example, the best embodiment of the metal part (not shown) of the present invention which does not have the above-mentioned trait defect used for connecting pressure piping circuits of automobiles, construction machines, industrial machines, etc. will be described. The metal parts of the present invention are limited to metal pipe joints, washers, nuts and the like used for assembling the pipe joints as disclosed in Patent Document 1, for example. The metal part of the present invention has a high-speed plastic working method according to claim 1, a manufacturing method according to claim 2, and a manufacturing method according to claim 5, in order to eliminate the defect of the metal part. Use one or more of 0b as follows. The metal part is a highly recyclable metal material according to claim 5 such as Pb, Cd, Cr, Co, Ni, etc. Extruded harmful material Free-type shaped material shall be treated as 200, and the contamination of harmful material caused by processed harmful material-free shaped material will be reduced. As described in the embodiment of claim 5, the internal residual strain stress of the workpiece 200 is suppressed and removed, and the guideline of the plastic working speed of the workpiece 200 is performed. The high-speed plastic working according to claim 1, 2, or 5, wherein at least a part of the outer shape of the metal part is constrained and fixed based on the guide, and at least a part in the vicinity of the processing location 2 0 1 of the workpiece is constrained and fixed. A mirror-like processed product having no trait defect is formed by any one or more of 100, and then, on at least a part of the processed product surface, for example, Pb, Cd, Non-lead, non-strength, non-chromium, and silica-based protective coatings that do not contain harmful components such as tetravalent Ci 'and hexavalent Cr, or exclude these harmful components below the inevitable component ratio A metal part is manufactured by coating a bell-proof film such as trivalent chromate, and the environmental load of any one of claims 1, 2, and 5 in the manufacturing process is simultaneously reduced. It is important to reduce the environmental impact caused by physical damage, harmful substance contamination, and disappearance of corrosion due to the above-mentioned defect at the time of use and disposal of the component, and to reduce the environmental impact throughout the life cycle of the metal component. Is the heart.

[0 0 5 3]

About claim 7

The best embodiment of the metal part 60 according to claim 7 will be described with reference to FIGS. 5 (a) to (e). The metal part 60 is a metal pipe joint 60 that does not have the above-mentioned trait defect used for the connection of the pressure piping circuit. A hollow pipe shaft 6 2 along the direction, a connection part 6 3 connecting the hollow pipe line 6 1 to another pipe line, and an opening for welding to another pipe circuit 6 3 if necessary. Tip part (not shown), sheet surface 63 3b tightly fitted to other piping circuit to prevent fluid leakage, connection thread part 6 3 c screwed to other piping circuit, elastic deformation seal ability A narrow groove portion 6 3 d that accommodates an elastic seal body that prevents fluid leakage, a tight fit that cooperates with the elastic seal body to prevent fluid leakage 156 3 e, and a locking nut that presses the elastic seal body For metal pipe joints with threaded parts 6 3 f etc. That is, the metal pipe joint 60 is formed by rolling a soft metal material such as mild steel, copper, aluminum, etc., which intentionally reduces the additive component of the harmful material-free metal material according to claim 6, to a long length, drawn, Alternatively, a highly environmentally efficient solid material, such as a plate or rod formed by extrusion, is used as the workpiece, and the environmental load over the entire life cycle of the solid material being processed is reduced. To implement. As described in the embodiment of claim 5, the material to be processed 2 0 0 Inhibition and removal of internal residual strain stress, and a guideline for the plastic working speed of the workpiece 200, and at least a part of the hollow pipe 61 of the metal pipe joint 60 based on the guideline, for example, The high-speed drilling, high-speed cutting, high-speed forging, and other high-speed plastic processing according to any one of claims 1 and 5, the hollow pipe 61 has a cross-sectional shape with no corners. In addition, it is formed in a smooth mirror surface with no spiral processing flaws, etc., and the pressure loss due to the vortex flow at the corner of the fluid flowing through the hollow pipe 61 and the flow resistance loss due to the processing flaws are reduced. The Further, based on the above guidelines, at least a part of the connection part 63 is formed by, for example, high-speed plastic working 100 0 according to any one of claims 1 and 5 such as high-speed cutting and high-speed screw forging, for example, surface roughness to be processed. It is formed in a smooth mirror-like shape with Ra of about 6 m or less, due to the environmental pollution caused by the falling-off scattering of metal powder, etc., and due to the adhering and mixing of the burr metal powder into the hollow pipe 61. Control and prevent fluid leakage accidents. Thereafter, at least a part of the surface of the metal pipe joint 60 is coated with, for example, the trivalent chromate film described in the embodiment of claim 6 to suppress the formation of the vicinity of the hollow pipe 61. A metal pipe joint 60 is manufactured, and the manufacturing process and the contamination of the metal pipe joint 60 and corrosion disappearance are suppressed in combination. Thus, the environmental load of any one of claims 1, 5, and 6 in the manufacturing process is reduced, and at the same time, the pressure loss and the flow resistance caused by the trait defect at the time of disposal of the metal pipe joint 60 are discarded. Reduce the environmental impact of each loss of anti-loss, fluid leakage accident due to each loss, contamination of harmful substances, loss of corrosion, and reduce the environmental load over the entire life cycle of the metal fitting 60 Is essential.

[0 0 5 4]

About claim 8

With reference to FIG. 6 (a)-(c), embodiment of the metal bending pipe joint 64 of this invention is described. The metal bent pipe joint 6 4 is the metal pipe fitting 60 according to claim 7, wherein the hollow has a smooth curvature. A pipe shaft 6 6 is provided, and the flow of fluid flowing in the hollow pipe 6 5 is reduced and carried out. The metal bent pipe joint 64 is formed by drawing or extruding the soft metal material according to claim 7 in a long shape, and the hollow pipe 65 has a rounded cross-sectional shape, for example, and an inner surface of the hollow pipe 65. A straight pipe formed with a smooth surface is used as a workpiece 200, and the pressure loss and flow resistance loss of the fluid are reduced. In addition, as described in the embodiment of claim 5, the internal residual strain stress of the Ml leather workpiece 200 is suppressed and removed, and the plastic working speed of the workpiece 200 is estimated. 6. The high-speed plastic processing 10 according to claim 1 or 5, wherein the straight pipe material to be processed 200 is subjected to, for example, high-speed cutting processing or high-speed shearing processing. The end surface without the above-mentioned trait defect is formed on a short straight pipe material (not shown) having a mirror-like shape, and the accuracy of the press bending process behind the metal bent pipe joint ^{6 4} resulting from the trait defect is improved. . Next, a hollow tube having a smooth curvature is obtained by restraining and fixing both ends of a straight tube short member having a mirror-like end surface, and press-bending the middle of the short tube short member while applying a load in the direction of compression of the straight tube. The road shaft 66 is formed, and then at least a part of the connecting portion of the metal bent pipe joint 64 is formed on the basis of the guideline as described in the embodiment of the claim 7, either of the claims 1 or 5. Is formed on the surface of the mirror-like weaving 63 without the above-mentioned trait defects with a processing surface roughness Ra of about 6 m or less, and then at least the surface of the metal bent pipe joint 64 A part of the antifouling film according to claim 6 is coated with, for example, a trivalent chromate film by a known method to produce a metal bent pipe joint 64. Claims 1, 5, and 6) Reduce the environmental load of 2 or more and, at the same time, smooth the metal bent pipe joint 64 Reduced pressure reflection loss due to the hollow pipe shaft 6 6 of curvature, each loss of pressure loss and flow resistance loss due to the above-mentioned trait defect, fluid leakage accident due to loss of personnel, pollution of harmful substances and environmental impact due to loss of corrosion It is important to reduce and reduce the environmental load over the entire life cycle of the metal bent pipe joint 64. [0 0 5 5]

About claim 9

Referring to FIG. 7, the primary assembly of any one of the metal pipe joint 60 according to claim 7 and the metal pipe joint 64 according to claim 8, for example, as shown in FIGS. 10 (a) to (e) The best embodiment of the hollow washer 70 used in the above will be described. The hollow dish washer 70 is a connecting thread part 63 of the joint. Closely-fitting inner surface 7 0 a that fits tightly without gaps in the outer diameter of the outer diameter smaller than the outer diameter of the inner diameter 7 0 a, and the outer peripheral surface 7 O a and the outer peripheral surface 7 0 b that is approximately TO ¹ And a nut seat surface pressed by a locking nut screwed into the threaded portion 63f of the joint, and an elastic seal body used in the primary ffiii of the joint in pressure contact with the inside of the joint pipeline In a hollow dish washer 70 with a smooth sealing seat that prevents leakage of the fluid being pumped, the following procedure is performed. That is, the hollow dish washer 70 is a highly environmentally efficient metal plate material such as a strip obtained by rolling the soft metal material according to claim 7 as a work material 200, and the work metal plate material 200 Reduce the environmental burden over the entire life cycle. As described in the embodiment of claim 5, the internal residual strain stress of the workpiece 200 is suppressed and removed, and the plastic working speed of the workpiece 200 is set as a guideline. 6. For example, high-speed cutting and high-speed press punching according to claim 5, wherein at least the punched inner peripheral surface 70 a of the hollow dish washer is constrained and fixed in the vicinity of the processing place 2 0 1 of the workpiece metal plate 20 0. By means of high-speed plastic working such as 100, the inner diameter dimension slightly smaller than the outer diameter of the connecting thread portion 63c of the joint is a mirror-shaped punched inner circumference that does not have the above-mentioned defects such as sagging, fracture cracking, and burr The inner diameter of the punched inner peripheral surface 7 O a formed on the surface 70 a and then the mirror-like shape is set to an inner diameter dimension slightly larger than the outer diameter of the connecting screw portion 63 c. Inner peripheral surface 7 Oa The diameter of the end is increased so that it does not break and it is pressed into a hollow dish shape. A hollow dish washer 70 is manufactured by coating, for example, a trivalent chromate film of any one of the fenders according to claim 6 on a surface of the press-molded product by a known method. And reducing the environmental load according to claims 5 and 6 in the manufacturing process, and at the same time, preventing and preventing the burrs and fracture cracking metal powder of the washer of the reduced diameter caulking process of the joint primary from falling off. Environmental pollution due to scattering, and the burrs. The metal powder adheres to the hollow pipe of the joint. Il hand Pressure loss, disposal of harmful substances, corrosion disappearance, fluid leakage when the primary assembly is discarded. It is essential to reduce the environmental burden caused by an accident and reduce the environmental burden throughout the entire life cycle of the hollow washer 70.

[0 0 5 6]

Claim 1 0

Referring to FIG. 8, the best embodiment of the stop nut 80 used immediately for the joint of any one of the metal pipe joint 60 according to claim 7 of the present invention and the metal bent pipe joint 6 4 according to claim 8 of the present invention. Explain. The lock nut 80 includes a prismatic main body portion 80 a, a female screw portion 80 b that is screwed into the threaded portion 63 f of the joint, and a hollow washer on one end surface of the main body portion 80 a This is carried out as follows in a stopper nut 80 having a stopper nut bearing surface 80 c that pressurizes the nut seat surface. That is, the lock nut 80 is a high-efficiency solid material obtained by drawing or extruding the soft metal material according to claim 7 in a long form as a work material 200. Reduce the environmental impact over the entire life cycle of materials. As described in the embodiment of claim 5, the internal residual strain stress of the workpiece 20 is suppressed and removed, and a guideline of the plastic working speed in the workpiece 200 is established, and based on the guideline For example, high-speed plastic processing according to claim 1 is used to cut a solid material 200 to be processed into a desired wall thickness dimension free from the above-mentioned defects such as sagging, fracture cracking, and burr. A solid body plate (not shown) is formed, and at least a pilot hole (not shown) of the female threaded portion 8 O b is formed in the female threaded portion 80 b of the solid body shaped plate material to be covered based on the reference. The vicinity of the corresponding part is restrained and fixed. For example, the high-speed plastic processing according to claim 1 or 5 of high-speed forging crane or high-speed forging crane According to the high-speed plastic processing 1 0 0 according to claim 1 or 5, for example, high-speed cutting, high-speed screw forging, etc. 7. A mirror-like female screw thread free from the trait defect is formed, and then, at least a part of the surface of the main body, for example, a trivalent chromate skin film of any one of the antifouling films according to claim 6 is publicly known A stop nut is manufactured by forming a coating by the method, and the environmental load of any one of claims 1, 5, and 6 in the manufacturing process is reduced, and at the same time, the stop nut is screwed onto the joint screwing portion 63f. Stopping burrs in the primary assembly process ・ Environmental pollution caused by falling and breaking of broken cracked metal powder, and the burrs' the joint due to adhering contamination of the metal powder into the hollow pipe Pressure loss, disposal of harmful substances, loss of corrosion, fluid at the time of disposal of the assembly Mode to reduce the environmental impact caused by an accident, as in child and reduce the environmental impact over the entire life cycle of 該止 Me Summer Bok is Hiyo.

[0 0 5 7]

Claim 1 1

With reference to FIGS. 9 (a) to (c), the best embodiment of the locking nut 90 of the present invention will be described. The stop nut 90 with a seat has a protruding elastic flange seat 90 d that prevents the nut from loosening at one end of the main body 80 a of the stop nut 80 according to claim 10, and if necessary. In the seated nut 90 having a ring housing portion 90 e for housing the resin ring 91 divided to press the elastic seal body according to claim 9 on the inner periphery of the elastic flange seat 90 d, Implement as follows. That is, the locking nut 90 with a seat is a highly eco-efficient solid element formed by drawing or extruding the soft metal material according to claim 7 in a long length as a workpiece 200, and the processed solid element Reduce the environmental burden over the entire life cycle of the shape material 200. As described in the embodiment of claim 5, the internal residual strain stress of the material to be processed 200 is suppressed and removed, and the plastic working speed of the material to be processed 200 is estimated, The high-speed plastic working 1 0 0 according to claim 1 of, for example, high-speed cutting and high-speed cutting I ^ Forming a solid plate material with a desired thickness thickness, and at least the coasting flange seat 90 d and the female screw portion 90 b corresponding to the female screw portion of the solid plate material based on the above-mentioned guideline The vicinity of the portion to be fixed is fixed, for example, high speed cutting, high speed shearing, high speed forging, high speed punching, etc. The high-speed plastic working according to claim 1 or 5 such as high-speed cutting, high-speed screw forging, etc., is applied to the prepared hole formed in the mirror-like shape based on the guideline. Forming no mirror-like female thread, After that, at least a part of the surface of the formed article is coated with, for example, a trivalent chromate film of the antifouling film according to any one of claims 6 to produce a seated nut 90, and if necessary, The ring housing portion 90 e is preliminarily attached with a split resin ring 9 1 that is harder and has a smaller friction coefficient than that of the inertia seal body, and the manufacturing process according to claim 1, 5, 6. Either the environmental load of 2 or more is reduced, and at the same time, the elastic flange seat 90 d, which is excellent in stress relaxation resistance, is used to suppress the loosening of fastening when the seated nut 90 is used, or The use of the split resin ring 9 1 eliminates the use of the plate washer and the shrimbling force shimming process of the plate washer, and the pressure loss at the time of disposal of the joint primary assembly according to claim 10; Harmful contamination, loss of corrosion, flow caused by loosening Reducing the environmental impact of Mo曳 accidents, it is important to implement to reduce the environmental impact over the entire Raifusaikuru of the washer stop nut 9 0.

[0 0 5 8]

Claim 1 2

The best embodiment of the iai body 600 of the present invention will be described with reference to FIG. Sensitive 6 0 0 Using one or more of the metal pipe joint 60 according to claim 7 and the metal pipe joint 64 according to claim 8, the following means are used. That is, the welding joint groove portion (not shown) of the pipe joint does not contain a known harmful component as shown in Table 5, for example, or is a welding material in which the harmful component is excluded to an inevitable component ratio or less. For example, the first means of assembling by welding all the circumference to other metal pipes using precious metal brazing (JISZ 3 2 6 8) for vacuum. A second means for screwing the connecting thread part 63c of the pipe joint to a threaded part (not shown) of another piping circuit body 700 which is screwed with the connecting thread part 63c. A nut having a bore size slightly larger than the outer diameter of the connecting thread portion 6 3 c is fitted to the tight fitting seal portion 6 3e of the pipe joint. After inserting the washer,

6 3e, the plate washer is crimped so that no gap is generated, and then the elastic seal body according to claim 9 is attached to the tightly fitting seal portion 6 3e to primarily assemble the seated pipe joint, Next, after screw fastening to the other piping circuit main body part 700 which is screwed with the connecting thread part 63c of the seated pipe joint, the elastic sealing body is connected via a washer which is reversely rotated and the diameter thereof is crimped. A third means of preloading and assembling. A seated joint using the hollow plate washer 70 according to claim 9, the stopper nut 80 according to claim 10, and the stopper nut 90 according to claim 11 in the third means. The fourth means is to apply the preload to the elastic seal body by the procedure described in the third means, and then to sensitize the elastic seal body. Using one of the above-mentioned means, ¾Jt body is obtained by ¾5t, and the environmental load due to resource energy consumption in the aio: process, the environmental load due to harmful substance contamination, and the metal parts used in the assembly Corresponding claims 7-11 While reducing the environmental load described in claim 1, at the same time, reducing the environmental load caused by pressure loss, hazardous substance contamination, corrosion loss, fluid leakage accident when the assembly 60 is used and discarded, It is important to reduce the environmental burden throughout the life cycle of the body. [Table 5]

Name Standard Symbol Harmful component ratio (%) Silver brazing JISZ 3261 BAg- 1 to 3 Cd 15 to 25 Copper and copper alloy brazing JISZ 3262 BCu-1 to 8 Pb 0.1 to 0.5 or less Phosphor copper brazing JISZ 3264 BCuP-l to 6 Pb, etc. 0.2 or less Nickel brazing J1SZ 3265 BNi-1 to 7 Pb, etc. 0.5 or less Gold brazing JISZ 3266 BAu-1 to 12 Cd, Pb, etc.0.15 or less Palladium brazing JISZ 3267 B-AgPd Pb, etc. 0.15 to 0.30 or less

Claims

The scope of the claims

[Claim 1] A plastic processing method for a metal part that forms a metal part free from defects such as burrs, sagging, fracture cracks, residual strain stress by machining using a metal material to be processed, and plastic processing of the metal part The method is a plastic working method that forms a metal part that does not have the above-mentioned trait defect by cold working without modifying the processing device for machining the metal material to be processed and without intentional preheating treatment. The plastic working method relates to at least a work hardening index of the work metal material when the work metal material is plastically processed by pressurizing the work metal material with a tool harder than the work metal material. By measuring and managing the characteristics, and by referring to the characteristics, the plastic working speed is estimated, and at least one end in the vicinity of the Karoe area of the metal material to be processed is constrained and fixed. For faster tools According to this, the distortion deformation heat generation at the machining location is due to a tool that suppresses the application of the plastic wave at the machining location and reduces the propagation speed of the plastic wave at the machining location, or due to the tool that suppresses the frictional heat generation due to machining at the machining location, or two or more of the above With the tool having the function of the above, based on the guideline, the plastic working speed is increased more than the propagation speed of the plastic wave of the metal material itself, and the plastic working is completed before the work point is age hardened (= In the following, it is defined as high-speed plastic working) to form a metal part free from the above-mentioned trait defects and to suppress the processing energy consumption of plastic fe & n in the process of forming the metal part. Omission of abbreviations such as cooling lubricant coating process attached to the above, degreasing and cleaning process of the cooling lubricant, post-modification after-treatment for improving the above-mentioned trait defects, and the consumption. Fast plastic working how metal parts, characterized in that with a reduced environmental impact by.

2. A method of manufacturing a metal part using the high-speed plastic working method according to claim 1, wherein the manufacturing method includes preparing the tool according to claim 1 and a mold including the tool, The gold After the mold is mounted on a processing machine that is driven by pressure, a workpiece is placed in the mold, and the workpiece is plastic-processed by the mold that is driven by pressure. A manufacturing method for producing, in the plastic working, an internal shape generated in the process of forming the work material, using a metal material as a long shape, drawn, or extruded shaped material as a work material. Residual strain and stress are suppressed and removed, and the measurement and management of the workpiece according to claim 1 is performed to establish a guideline for the plastic working speed, and the vicinity of the processing portion of the workpiece is constrained and fixed in as much area as possible, The high-speed plastic processing according to claim 1 is mass-produced based on the guideline, and at the same time, the environmental load according to claim 1 in the mass production process is reduced. Gold using the high-speed plastic processing method described in 1 Method of manufacturing the parts.

3. A mold for use in the manufacturing method according to claim 2, wherein the mold includes an upper mold movable part that is pressure-driven by a processing machine and reciprocates between upper and lower dead centers, and the upper mold movable part. A pair of upper and lower press dies, which are formed of a lower mold fixing part that plastically processes a workpiece carried into the mold, and at least the upper mold movable part is placed on the upper mold movable part. A tool that presses the workpiece and plastically processes it, a holding part that holds the tool, an auxiliary part that transports the workpiece as needed and restrains it at the desired position, and holds the above parts with high accuracy. High-efficiency mold that has a lower density, higher specific rigidity, and higher specific heat than at least a part of the conventional mold. A hard material containing a rare heavy metal at least in a part of the component of the tool. At least a part of the component parts of the aid section using a known toxic material-free member that has both a low density, a large specific gravity IJ property, and a large specific heat, and does not contain harmful rare heavy metals. For this purpose, a vibration absorption type member having a small vibration loss coefficient is selected from the high material efficiency type members and used, and the area of the auxiliary part restraining and fixing the workpiece is increased as much as possible. And the auxiliary part restrains and fixes the work material as much as possible, and when the plastic working with the tool of the mold is performed, the work material A first means for making the tip of the tool abutting against the tool shape in which the abutting pressure area of the tip gradually increases from the corresponding contact moment (= timing), at least a part of the corresponding contact pressure surface of the tool A second means to finish the surface into a mirror-like shape with a small surface roughness, wear resistance having at least a part of the contact pressure-applied surface with a large hardness, a small friction coefficient, and a large specific heat compared to the material of the tool member A third means for coating the wear-resistant lubricating thermal insulation film; a fourth means for coating the wear-resistant lubricating thermal insulation film on the mirror-finished tool surface; In the case of a crankshaft rotary processing machine with a pressurizing stroke curve where the pressurizing speed is zero at the top and bottom dead center and reverses, the contact pressurization moment (= timing) is the bottom dead center (= crankshaft rotation angle) 1 8 0 °) From around the crankshaft rotation angle 9 0 At least one of each means of the fifth means that shifts to approach the mold, design and manufacture a mold that is smaller and lighter, consumes resources and energy at the time of mold production, pollution of harmful substances, when using the mold Distortion loss .Motion loss · Vibration loss · Loss of wear and loss and consumption · Contamination of harmful substances · Each loss · At the same time as reducing the environmental impact caused by the vibration noise, The press die used in the manufacturing method according to claim 2, wherein the plastic working speed is increased by a section to enable high-speed plastic working according to claim 1.

4. A processing machine used in the manufacturing method according to claim 2, wherein the processing machine pressurizes and drives a pair of upper and lower molds attached to the processing machine, and is carried into the mold. This is a conquest processing machine that mass-produces metal parts formed by pressurizing a workpiece with a tool provided in the mold and performing plastic processing, and the i-adding machine attaches a lower mold fixing portion of the mold A fixed part, a movable part that reciprocates between upper and lower dead centers by attaching an upper mold movable part of the mold, a friction surface that guides the reciprocating movement, a drive part that drives the movable part, and each of the parts with high accuracy. A high-efficiency material, a harmful substance-free material, a vibration-absorbing material, according to claim 3, wherein at least a part of the constituent parts of the movable part is a potted processing machine provided with an Oka Imo frame part held by Using at least the movable part A sixth means for applying a mirror-like surface finishing process according to claim 3 to a part of the friction surface, and at least a part of the friction surface with the wear-resistant lubricating thermal insulation film according to claim 3. 7th means for forming a coating, and applying at least one or more of each of the 8th means for coating the wear-resistant lubricating thermal insulation film on the mirror-finished surface. In addition to reducing each loss and environmental load of claim 3 when using the forging process, the energy consumption of resources during the production of the machine is reduced. 3. The 赃赃 processing machine used in the manufacturing method according to claim 2, wherein the plastic processing speed is increased by a part of the loss reduction portion to enable the high speed processing according to claim 1.

5. A method of manufacturing a metal part according to claim 2, wherein the manufacturing method includes any one of the mold according to claim 3 and the processing machine according to claim 4, in the plastic working according to claim 2. Or a manufacturing method using both of them, wherein the manufacturing method comprises rolling a highly recyclable metal material that has been deliberately strengthened by deoxidizing the molten metal into a long length during the plastic working, 3. The workpiece material according to claim 1, wherein the workpiece material is a highly recycle shaped material that has been drawn or extruded, and the residual residual stress of the workpiece material according to claim 2 is suppressed and removed. The plastic processing speed is established by measuring and managing at least a part of the outer shape of the metal part based on the standard, and the high-speed plastic working ability of the mold and the processing machine or both. And manufacturing a metal part with a mirror-like shape without the above-mentioned defect In addition, the environmental load according to claim 2 in the manufacturing process and the environmental load over the entire life cycle of the workpiece material used for the manufacturing are reduced, and the mold is manufactured. The metal according to claim 2, characterized in that the environmental load of one or both of claims 3 and 4 at the time and in use is reduced, and the total environmental load of the manufacturing process is reduced. Manufacturing method of parts.

6. A metal part having no trait defect used for connecting a pressure piping circuit, and the 15 metal sounds are the high-speed plastic working method according to claim 1, the manufacturing method according to claim 2, A metal part that is manufactured using any one or more of the manufacturing methods according to claim 5 and has no trait defects, wherein the metal part is a harmful substance that excludes the known harmful components of the highly recyclable metal material according to claim 5. 6. A hazardous material obtained by rolling, drawing, or extruding a material-free metal material to a long length. Using a free-type shaped material as a material to be processed, suppressing internal residual strain stress of the material to be processed according to claim 5. A guideline for removal and plastic working speed is set, and at least a part of the outer shape of the metal part is constrained and fixed based on the guideline, and at least a part of the workpiece in the vicinity of the processing part is fixed and fixed. A mirror-like processed product free from the above-mentioned trait defects is formed by any one or more of the high-speed plastic processing described in 1, 2, and 5. Thereafter, harmful components of の ^ Π are added to at least a part of the surface of the processed product. Does not contain a protective film or does not contain this harmful component A metal part is manufactured by coating any one of the protective coatings excluded to a ratio of avoiding components or less, and any two or more of claims 1, 2, and 5 in the manufacturing process. At the same time as reducing the environmental impact, reducing the environmental impact due to physical damage, toxic contamination, and loss of corrosion due to the above-mentioned trait failure at the time of disposal of the metal component. The above-mentioned metal part having a trait failure, which is used for connecting a pressure piping circuit, characterized in that

7. The metal part according to claim 6, wherein the metal part is a metal pipe joint that does not have the trait defect used for connecting a pressure pipe circuit that pumps fluid, and the metal pipe joint includes: A hollow pipe having a round cross-section with respect to the fluid feeding direction, a hollow pipe shaft in the feeding direction, a connecting portion for connecting the hollow pipe to another piping circuit, and if necessary, the changeable crane, Grooves welded to other piping circuits, seat surfaces that tightly fit with other piping circuits to prevent flow fusion, connecting screw portions that are screwed to other piping circuits, and elastic seals that prevent fluid leakage Narrow groove part that accommodates the outer diameter of the connecting screw part that prevents fluid trapping in cooperation with the elastic seal body.

-^ Metal pipe joint provided with a threaded portion etc. that is screwed with a retaining nut that presses the elastic seal body, wherein the metal pipe joint is an alloy additive component of the hazardous material-free metal material according to claim 6 The internal residual strain of the work material according to claim 5, wherein a soft metal material that has been intentionally reduced is a high environment-efficiency solid material formed by rolling, drawing, or extrusion forming a long length. Suppression of stress! ^, And sake 'Estimate the work speed, and based on the guide, at least a part of the hollow pipe is hollowed by high-speed plastic working according to any one of claims 1 and 5. 6. A cross section of a pipe is formed on the inner wall surface of a hollow pipe having a round shape and free from the above-mentioned trait defects, and at least a part of the weaving is then made based on the guideline. The high-speed plasticity of the process is formed on a mirror-like connection surface having a surface roughness Ra of about 6 m or less and free of the above-mentioned trait defect by a Karoe process, and then on at least a part of the surface of the metal pipe joint. A metal pipe joint is manufactured by coating one of the protective coatings described in 6. The environmental load of any one of claims 1, 5, and 6 in the manufacturing process is reduced, and at the same time, each of pressure loss and flow resistance loss due to the above-mentioned trait failure at the time of disposal of the metal pipe joint is discarded. 7. The environmental load over the entire life cycle of the metal fitting has been reduced by reducing a loss, a fluid leakage accident due to each loss, contamination with harmful substances, and a difficult load due to disappearance of corrosion. Metal pipe fittings for metal parts.

8. A metal part according to claim 6, wherein the metal part comprises a hollow pipe shaft having a smooth curvature on the hollow pipe shaft of the metal pipe joint according to claim 7. Therefore, the metal bent pipe joint is formed by bending or extruding the soft metal material according to claim 7 into a long shape, and has a hollow pipe force S cross-section round shape and a hollow pipe inner wall surface without unevenness. A smooth and highly environmentally efficient straight pipe material is used as a material to be processed, and an internal restraint strain stress of the work material according to claim 5 is reduced, and a plastic working speed is estimated. Based on the standard, the straight pipe material to be processed is converted into a straight pipe short material having a mirror-like end surface without the above-mentioned trait defect by the high-speed plastic working process of claim 1 or 5. Next, a straight pipe short material having a mirror-like end face is formed, and at least both ends of the straight pipe short material are restrained and fixed, and a hollow tube shaft compression method is formed. Straight tube Tanzai middle while load in 6. A hollow pipe shaft having a smooth curvature is formed by press bending, and then at least a part of the connecting portion is formed by high-speed plastic working according to claim 1 or 5 based on the guide. 7. A processed surface roughness Ra6 im or less is formed on a mirror-like contact surface having no such trait defect, and then, on at least a part of the surface of the metal bent joint, A metal curved pipe joint is manufactured by coating the protective film of the above, and the environmental load of any one of claims 1, 5, and 6 in the production process is reduced, and at the same time when the metal curved pipe joint is used and discarded. Loss of reflection due to the hollow pipe shaft with the smooth curvature, pressure loss and flow resistance loss due to the trait defect, and fluid leakage accidents due to each loss, contamination of harmful substances, loss of corrosion Reduce the environmental burden caused by each, 7. The metal bent pipe joint for metal parts according to claim 6, wherein an environmental load over a life cycle is reduced.

9. A metal part according to claim 6, wherein the metal part is a hollow dish used as a primary of any one of the metal pipe joint according to claim 7, and the metal curved pipe joint according to claim 8. A washer having a smooth punched inner peripheral surface that is crimped without a gap to a tight fit having an outer diameter smaller than the outer diameter of the connecting thread of the joint; and substantially the same as the punched inner peripheral surface Pressure contact is made with a parallel punched outer peripheral surface, a nut seat surface pressed by a locking nut screwed into the threaded portion of the joint, and an elastic seal body used in the primary assembly of the joint. A hollow dish washer having a smooth sealing seat surface that prevents leakage of fluid flowing in the joint pipe, wherein the hollow dish washer is a high environmental efficiency type formed by rolling the soft metal material in a long length. A metal plate material is a work material, and the internal residual strain stress of the work material is suppressed and removed according to claim 5. 6. A high-speed plastic working process according to claim 5, wherein a guideline is set for the plastic working speed, and at least the punched inner peripheral surface of the hollow plate washer is constrained and fixed in the vicinity of the caloe portion of the metal plate to be processed. An inner diameter dimension slightly smaller than an outer diameter of the joint connecting thread portion is formed on a mirror-like inner peripheral surface that does not have the above-mentioned trait defect, and then the inner diameter dimension of the punched inner peripheral surface formed in the mirror-like shape is Right The diameter of the inner peripheral surface of the punched inner surface formed in a mirror-like shape is slightly larger than the outer diameter of the tie portion so that the end of the punched inner peripheral surface does not break and is press-molded into a hollow dish shape. A hollow dish washer is manufactured by coating at least a part of the product surface with any of the fouling films according to claim 6, and the return boundary load according to claim 5 ′ claim 6 in the i¾g step is reduced. At the same time, the burrs of the plate washer in the shrinkage force squeezing process in the primary assembly of the joint are prevented and prevented from falling off the fracture cracked metal powder, and environmental pollution due to the detachment and scattering, and the burrs in the joint of the metal powder. The entire life cycle of the hollow plate washer is reduced by reducing the environmental load caused by pressure loss, hazardous substance contamination, corrosion disappearance, and fluid leakage accidents during disposal of the primary assembly due to adhering contamination in the empty pipe line. Characterized by reduced environmental burden A hollow ID1J¾ gold metal part according to claim 6.

10. A metal part according to claim 6, wherein the metal part is used as a primary joint of any one of the metal pipe joint according to claim 7 and the metal pipe joint according to claim 8. The lock nut includes a prismatic main body portion, a female screw portion to be screwed into the screwed portion of the joint, and pressurizing the nut seat surface of the hollow washer to one end surface of the main body portion. A stop nut having a stop nut seating surface, wherein the stop nut is formed by processing a highly environmentally efficient solid material having a prismatic outer shape obtained by drawing or extruding the soft metal material according to claim 7 in a long length. Claim 1 is made using the solid material that is being machined based on the guideline, the inner strain of the work material described in claim 5, the suppression and removal of residual strain stress, and the standardization of the plastic working speed. Forming a solid blank without the above-mentioned trait defect of desired wall thickness by high-speed plastic working 6. Based on the guideline, at least the pilot hole of the female screw portion is constrained and fixed in the vicinity of the portion corresponding to the female screw portion of the solid elemental plate member, 6. A mirror-like shape free from the trait defects is formed by plastic working, and then the prepared hole formed in the mirror-like shape based on the guide is formed into a mirror-like shape free from the trait defects by the high-speed plastic processing according to claim 1 or 5. Forming female thread After that, at least H on the surface of the main body portion, and a lock nut is manufactured by coating the protective skin film according to any one of claims 6 and any of claims 1, 5 and 6 in the manufacturing process. 2 At the same time reducing the environmental load of 2 or more and screwing the nut to the joint threaded part. Primary thread 15-stage lock nut burrs' Environmental pollution due to falling and breaking of broken cracked metal powder, and the burrs Reduce the environmental load caused by pressure loss, hazardous substance contamination, corrosion disappearance, and fluid leakage accidents at the time of use and disposal of the joint primary assembly due to the metal powder adhering to the hollow pipe. The stop nut for metal parts according to claim 6, characterized in that the environmental load over the entire life cycle of the stop nut is reduced.

11. A metal part according to claim 6, wherein the metal part is formed at one end of the stop nut according to claim 10 and has a convex piece-like elastic flange that prevents the fastening nut from loosening. A seated stop nut comprising a seat and a ring storage portion for storing a split resin ring for pressurizing the elastic seal body according to claim 9 on the inner periphery of the inertia flange seat as required. The nut is a high environmental efficiency solid material obtained by drawing or extruding the soft metal material according to claim 7 in a long length, and the internal residue of the material to be processed according to claim 5 The strain stress is suppressed and the plastic working speed is set as a guideline, and the trait defect of the desired wall thickness dimension is eliminated by the high-speed plastic processing according to claim 1 using a solid material to be processed based on the guideline. A real plate material is formed, and at least the The pilot hole of the flange seat and the female screw part is restrained and fixed in the vicinity of the portion corresponding to the female screw part of the solid plate material, and the high-speed plastic working according to any one of claims 1 or 5 6. A mirror-shaped female screw thread free of the trait defect is formed by high-speed plastic processing according to claim 1 or 5 in the mirror-like prepared hole based on the standard. After that, at least a part of the surface of the formed product is coated with the fouling film according to any one of claims 6 to produce a seated retaining nut, and if necessary, in the ring storage portion, the elastic seal Compared to body Pre-installed with a ring made of a split resin having a hard and small friction coefficient, and at the same time, the environmental load of any one of claims 1, 5, and 6 in the manufacturing process is reduced, and at the same time, the stress relaxation resistance is excellent. The tightening elastic force of the inertia flange seat suppresses the loosening of fastening when the seated lock nut is used, or the use of a split resin ring eliminates the use of the plate washer and the reduced diameter caulking process of the plate washer. The joint according to claim 10 reduces the environmental load caused by each of the fluid leakage accidents caused by pressure loss at the time of use and disposal of the primary assembly, contamination of harmful substances, disappearance of corrosion, loosening of the control, and 7. The seated nut for metal parts according to claim 6, wherein the environmental load throughout the life cycle of the nut is reduced.

[British claim 1 2] An assembly using the metal part according to claim 6, wherein the assembly is any one of the metal pipe joint according to claim 7, and the metal curved pipe joint according to claim 8. It is an ia sample using a pipe joint, and the ίε body does not include a known harmful component in the groove for welding joint of the pipe joint, or excludes the harmful component to an inevitable component ratio or less. First means for welding and assembling to other metal pipes using welding materials, and assembling the pipe joint connecting screw part to another pipe circuit body screwed to the connecting screw part A second means, a hollow dish washer having an inner diameter slightly larger than an outer diameter of the connecting screw portion, in a tightly fitting seal portion of the pipe joint; The hollow dish washer is squeezed so that no gap is generated between the tightly fitted sheet, and then the tightly fitted seal portion After attaching the elastic seal body according to claim 9 to the primary thread Ι3 of the seated pipe joint, and then screwing it to another piping circuit main body screwed with the connecting thread of the seated pipe joint, The hollow plate washer according to claim 9, and the stopper nut according to claim 10, wherein the third means for applying a preload to the inertia seal body through a washer that has been reversely rotated and squeezed the shrinkage force, The seated fitting is subjected to primary ffijt using any of the seated set nuts according to claim 1 and then the third means is provided. Therefore, ai: by using any one of the fourth means to apply pre-load to the elastic seal body and las, the environmental load due to the resource and energy consumption in the process, the environmental load due to harmful substances contamination, and the assembly Claims 7 to 11 corresponding to the metal parts used in the above are all reduced, and at the same time, pressure loss, toxic contamination, corrosion disappearance, fluid leakage accidents when the assembly is discarded The body using a metal part according to claim 6, wherein the environmental burden caused by each of them is reduced and the environmental burden over the entire life cycle of the assembly is reduced.