TW590817B - Method for integrally forming seamless pipe for G.I.S. - Google Patents

Abstract

A method for integrally forming a seamless pipe for G.I.S. comprises: (1) preparing a metal raw material having ductility; (2) preheating the raw material; (3) preheating a first mold; (4) mounting the preheated raw material in a first mold to perform a first blank forming procedure in order to expand a first end of the blank into a disk by the compression of the core of a press mold, to compress a recess part on the disk center, and to form a protruded rim on the periphery of the disk; (5) preheating the blank and a second mold; (6) mounting the recess part of the blank on a base mold, the periphery of which being mounted with the second mold in order to perform a compression formation of a seamless pipe. The reciprocating linear compression of the core of the compression mold enables the ductile metal blank of the blank to extend along the vertical wall of the second mold. A second end of the blank is expanded into a disk, and the blank is progressively punched through by the core of the compression mold to form an integrally formed seamless pipe having a disk on the two ends thereof.

Description

590817 V. Description of the invention (1) [Application of the present invention The present invention aims to refer to a kind of pipe fittings produced at both ends of the pipe, and a large number of products of strength and quality, which do not need to be welded. It is required to properly meet the requirements of the application. The gas-insulated end of the pipe needs to be formed for stringing. 10 is formed by closing the conventional technical field surface with disk surface 1 2 A, 1 3, so most of the pipes are of equal diameter 1 Among them, in order to achieve this, it needs to be within the pipe section 16 A, the stable head 12 (or 13), the internal lead angle 16 B, and its purpose is to make it range.] To provide a seamless pipe integrated manufacturing method, especially with a disc surface The pipe fittings can reduce the production time and shorten the process time and increase the output. At the same time, it can improve the manufacturing methods of the production parts and enable various processors with enlarged disk surfaces at both ends. Description] The method for making pipe fittings with a disk surface is a pipe fitting 10 manufactured as shown in Figures i and 2. The size of the outer diameter and the thickness of the pipe wall are used for the preparation of north-south transmission and distribution lines (herein referred to as GI). S) as an example, its two interlocking disk surfaces 1 2 A and i 3 A are connected to the pipe 10, so its pipe section 1 1 is welded at the ends of both sides to end 12 or 13 12,13, because of the official parts of this type, because the two ends have A at the same time, it can not be extruded with aluminum extrusion type to extrude the ends 12,13, and the same as -1 Welded together to form a whole. After welding, it can have an excellent welding bead 15 joint effect. The joint end of 1 1 is provided with the inner lead angle engagement class 17 A and the outer lead angle 18 A required for welding. At the same time, the joint end, It is also matched to set the stable engagement class 17 B and outer guide angle B 8 B required for welding. The surface area of the joint surface at the weld can be increased to the maximum.

590817

V. Description of the invention (2) In order to obtain the best welding, this requires the technical means of A. The manufacturing cost of the outer bead 15 is 5 and therefore the overall pressure resistance 5 is generated. In addition, the strength of the pipe section Finding that there may be dozens of inventory spaces and quantities [General Summary of the Invention 'The main method of the present invention is to use a continuous extrusion of a cylinder to form both ends of the same degree. The secondary manufacturing method of the present invention has its exemption to the maximum effect. The manufacturing method of the present invention is convenient in inventory and is manufactured to achieve the above-mentioned target strength. After joining the pipe fittings 10, both end faces 12 are finished. After the welding process is completed, it will take more time for machining, so the overall strength is relatively improved. More importantly, the degree of obvious vulnerability arises from the possibility that the deficiency may cause cracking. 11 is a hollow pipe body with a specific diameter. Due to the above different pipe diameter sizes and specifications, it is also a storage cost. A. The welding of the working hours of the pipe fittings should be performed on this day.

The main purpose is to provide a seamless pipe integrally formed and manufactured rotating block, which is based on the weight of the material as the material to take into consideration, so that it can pass through the mold, and the material and mold pre-heating processing means. The purpose is to provide _ ^ ^ ^ for seamless pipe fittings and one-piece manufacturing. Application: tf * then processed hand daggers, F1 拄 m I make the finished pipe fittings strong moon daggers, and at the same time, because of the elimination of welding I The purpose of improving working hours is to provide a solid prime type; Ma Jingjian, so that the raw material tube "the invention of the plate j". The method includes the following steps: 590817 ---- ^ Finish the weight of the product and cut the solid material. 5. Description of the invention (3) 1. Calculate the ingots of equal weight according to the size requirements; 2. Preheat the materials; 3. Preheat the first mold; 4. Will be made 5. Will 6. Will be used for sewing. The workmanship of the relay mouth will be better. [Better book 1, plain etc. 2. Will make the material 3. In a mold, the peripheral edge formed by the end surface is preheated; on a bottom mold, it is molded. The pipe parts can have more than one, the surface area ratio and quality of the two ends of the hair piece. For example, in conjunction with the drawings, a preheated material is placed on the first molding, so that the first part of the material is a depression, so that the surface of the disk is rough and The second mold applies the pre-heated rough embryo to be turned and placed on the second end face of the pipe to extrude the seamless question made by the above steps, which greatly reduces the cost; it can be integrated into a pipe, and it can also improve the working efficiency. A specific implementation content, characteristics and description of the specific embodiment] The manufacturing method of the invention mainly prepares the materials; the conventional materials are preheated; the materials have a softened, but unexpected crystalline structure. The first mold is preheated; the first rough brachio rubbing type is performed, and a flange is squeezed in the center of the disk surface; the second mold is used to improve the raw material and the material tube does not need to be welded. The overall strength of the finished product can enhance the competitiveness . Description to explain the present invention in more detail. The system includes the following steps: For ductile metals such as aluminum and steel · · = ductile metal materials need to increase the temperature to make it into a liquid state and destroy the original can be fired with B-jet fire or on the mold Μυδί /

It is assumed that the temperature of the heating tube can be uniform, so that the effect of the preheating temperature of the mold and the preheating temperature of the material can be improved. ; The bucket can get better preheated molding in the forming of the handle, so that the mold core is made to the rough embryo in the mold and the preheated rough pipe fitting. The second parameter is the total weight of Fig. 3. Cut the upper end. The expanded top die 3, after the top die 3, the workpiece is easy to increase slowly, and the surface of the disc 4 is also rough. At the same time, its rough gravity extrusion is used. As mentioned in the application, the weight of the mold is 3 〇 3 32. With a mold. When extruded on a plain mold, a thicker surface than the diameter of the disk is 40. The material of the extruder is placed in a conventional P Η ^ vegetarian ;; the first one is used in the first rough embryo extrusion End face disc surface forming; the punching degree during extrusion must be slow and smooth, so that the material can extend the cavity. The two molds are preheated; the embryo is turned over on a bottom mold, and the second mold is used to perform the same operation. A, also, one, four, extend the head 5, and 6 'will sew the pipe There is a mold example in the heat. The plastic rough mold is 3 small and the wide end is molded. 4 2. On the machine, the work efficiency is as above. Take the same first mold with a large groove 1 and a fixed 1 mold. Into 15 5 embryos outside the press 9 horizontal weight of the addition of materials 2 0 advance pre-side press 9 with cone-shaped gravity extrusion material 2 0 embryo 4 0 4 1 of 3 is more obvious First, make it hot, the larger inner 0 is the upper end 3 4, and after the press 9, the element obtained in the enlarged example of the coarse center system is fed into the first mold 3 and the wall 3 3 according to the post-molding material 2 0. : It is better to make the extrusion into 0 to make the height of the material shrinkage 40. A depression on the upper part is shown as a vertical same as expected.

Page 7 590817 V. Description of the invention (5) Please refer to Figure 4. It is based on the electric oven 8 rough embryo 4 0 brought into the furnace, please refer to the surface 4 1 The left side of the moving left module is equipped with 5 2 The bottom is easy to remove the groove 5 5 long. Please refer to the following. A guide angle die 9 1 is provided at the die core 9 1 to squeeze the inner wall 5 6 due to gravity. Please refer to the extrusion of the pipe fittings. Among them, a mold that breaks through the rough embryo is shown in the first and second molds 5 1 and the tie rod 5. The slippery work is set, and its sixth, gravity extrusion has a slower extrusion speed than 92, and the semi-finished product Figure 8 finally makes the disk surface 4 through, as shown in the figure. Wedge 3 5 on 50, the movable right mold 3 and the tie rod block can be at the bottom; the inner wall of the second mold mold 7 shown in the figure 9 press is longer than the molding bevel 9 3 the second mold extends to the 0 The material 4 can be obtained, and it has a thick belly and 4 preparations to the opposite end plate. The material has been preheated evenly. It is used in the thick second module 5 2 5 4 and the mold 3 5 with 5 0 5 6 long. The heated rough embryo 4 〇 5 ， two activities make the upper left slide two modules set as pre-heating; the round belt of 〇 4 0 flip around the package contains two moving left and right modules 5 1 horizontal in the slot The upper end is provided with a thicker embryo 4 in the embodiment 8 1 so that it is covered with a pre-halfed live module and a right mold Slide, with the height of 0 extended as 'the length of the through pipe when changing the upper end of the second die' to facilitate drawing 40, the left and right two of the 50 die will have 50 2 The module clamping long mold core 9 1, this hand, is close to the top ^ and detached from the pipe fitting. Roll the rough material 40 ;; in the groove 5 5 at the end of the module 5 1 and 5 2, the long die core 9 1 reciprocates linearly and repeatedly in a linear gravity direction; the first die 5 〇 the upper groove 5 5 long die center 9 1 The depression 42 in the center of the surface 41 becomes

Page 8 590817 V. Description of the invention (6) II i 1:: L. Among them, the long mold core 9 1 can be used at the head end (ϊ: tungsten tungsten, high carbon steel, etc.), so that the long inner wall surface is perfect. -High precision of human molding extrusion, please refer to Figure 9 ’When forming the integrated molding, the two ends of the disk are right? = Heart 911, and then make the second mold 502. "Left and right handle blocks 5 1, 5 2 The levers 5 3, 5 4 on the outside are pulled out to separate the left plate 5 1 and the right module 5 2 so that The formed pipe fittings 60 are taken out. Tugan The gas-insulated equipment (GU) of the present invention is seamless "Bull 60 0 '. Its structural features include the left end of the disk surface 4 丄, and the right = the end of the disk surface 4 4, middle. It is an integrally formed jointless pipe diameter of 6 1, which means that its overall strength can be improved compared to those of traditional knowledge. Month > FIG. 11 is a flowchart of the overall manufacturing steps of the present case. Extrusion is a processing method that uses a higher hardness tool and slowly applies pressure to the ductile metal material, and uses the internal space of the mold to compress the metal material to 31, which can improve the mechanical properties of the material. Generally, the metal material to be extruded is polycrystalline metal, and those formed by casting form coarse dendritic crystals, and the structure of the inside still has a casting nest (shrinkage gavity), shrinkage holes (shrinkage h〇ie), Segregation and other defects, so lack of toughness and safety of the material 1 * San San, so when the metal material is press-molded under high temperature heating and softening state, T single can cause the coarse dendrite of the material to be mechanically destroyed It can also be reminiscent and miniaturized, and the cast nest and shrinkage holes can be eliminated. At the same time, the partial deviation of the invention can be explained. (7) Analysis has a significant effect on uniform diffusion. It can be known from the above that 1 'material is produced by weight, and there is reprocessing and smoothing. Because of this forging and forming, it can be consistent. 2 Only 3. Extruding machinery is integrated into traditional costs and methods. It can save the manufacturing system. It is based on gold processing and it starts from the material flow. The finished product has the above-mentioned characteristics. It has two ends to improve its fineness. It is proposed that the invention is only for the purpose of the invention. The impact value of the structure made by the second invention has the following practical advantages: squeegee 1 will slowly extrude the whole shape, so there is no shortage of material; the conventional cutting pipe body is then welded 'need to be in the process ^ / 、 After the material and the mold are heated synchronously, they are broadcasted again and extruded through the molds of Chu Yihua's mold to extend it into Cheng Rishi's second pass to form the disk surface at both ends on the pipe. Can significantly reduce production costs. The physical properties of the material M 1 are pressurized, so it can save the time lost by mechanical change F and mechanical processing time, and more importantly, the forging stream line raised by the higher strength can strengthen the quality of the finished product. The change is the inconvenience of welding and forming, which has reduced the following points: It can be used for the manufacturing of pipe fittings in a consistent process. It has competitiveness, has industrial use value, and applies for profit. The preferred embodiment of the present invention is described as an example, rather than the changes in the different external dimensions of the parts, which should be covered by the following patents in accordance with the spirit.

590817 Brief description of the drawings [Simplified description of the drawings] Figure 1 is a schematic diagram of the structure of a traditional pipe fitting. Figure 2 is a partially enlarged schematic diagram of the structure of a conventional pipe fitting. FIG. 3 is a schematic diagram of a rough embryo extrusion molding process according to an embodiment of the present invention. FIG. 4 is a schematic diagram of preheating a crude embryo according to an embodiment of the present invention. FIG. 5 is a schematic view of placing a rough embryo in a second mold according to an embodiment of the present invention. Fig. 6 is a schematic view showing that the rough embryo according to the embodiment of the present invention will be extruded in a second die. Fig. 7 is a first schematic view of a pipe fitting made of a rough embryo in a second die according to an embodiment of the present invention, which is extruded and reciprocated in a straight line. Fig. 8 is a second schematic diagram of a pipe fitting made of a rough embryo in a second die by linear reciprocating extrusion in an embodiment of the present invention. Fig. 9 is a schematic diagram of the second mold detached to form a mold release after the pipe fitting is formed in the embodiment of the present invention. Fig. 10 is an external view of a pipe fitting according to an embodiment of the present invention after molding. FIG. 11 is a flowchart of an embodiment of the present invention. Attachment: One test report of seamless pipe fittings in this case (No announcement is requested, please return it after the trial.) [Comparison of component number and name in the drawing] 1 0 .. pipe fittings 1 1 .. pipe section 1 2, 1 3 .. Tips 12A, 13A. · Surface 15 ·· Bead

590817 Schematic description of 16A, 16B .. Internal lead angles 1 7 A, 17 Β. · Engagement stages 18A, 18B .. External lead angle 2 0. • Material 3 0. 2nd mold 3 2. Enlarge Groove 3 4 · • Conical surface 4 0. • Coarse embryo 4 2. • Recess 4 4 • Disk surface 5 0. • Second mold 5 2. • Right module 5 5 • • Groove 6 0. • Seamless Pipe fitting 9 0. • Gravity extruder 9 2. • Guide angle 3 1 .. Top die 3 3 .. Large inner wall 3 5 .. Bottom die 4 1 .. Disk surface 4 3 .. Outer diameter surface 5 1 .. Left module 5 3 .. 5 4 tie rod 5 6 .. inner wall 9 1 .. long die core 9 3 .. bevel

Claims (1)

590817 Case No. 91116303 Amendment 6. The scope of the patent application is ^ reciprocating linear extrusion processing, so that the ductile gold of the thick limb extends along the vertical wall surface of the second die, and at the end of the material: expands into a disk surface, and The die core is used to penetrate through the rough embryo gradually to form a seamless pipe with a disk surface at both ends. According to the gas-insulated equipment (G · κ 8) seamless pipe fitting integrated manufacturing method described in the first patent application scope, the second mold further includes a top mold, and a long mold core is provided on the top mold. The gas-insulated equipment (G · I · S) seamless pipe fitting integrated manufacturing method described in item 6 of the patent application scope, wherein the length of the long die core is greater than the length of the shaped pipe fitting in the first mold. The gas-insulated equipment (G · I · S) seamless pipe fitting integrated manufacturing method as described in item 6 of the scope of patent application, the long die core is provided with a guide angle and an inclined surface near the top, so that the die can be separated from the pipe. . As in the gas-insulated equipment (G · I. S) seamless pipe fitting integrated manufacturing method described in the scope of the patent application, the long mold core can be locked with a high hardness material at the head end, so that the long mold core penetrates through When the inner hole of the pipe is formed, the perfect inner wall surface with high accuracy is extruded at one time. 10. The method for integrally forming a seamless pipe fitting for gas-insulated equipment (G · 1 · s) as described in item 9 of the scope of the patent application, the high-hardness material is locked at the end of the long die core, which is tungsten carbide or high-carbon steel. And other metals. 1 1. The manufacturing method of seamless pipe fittings of gas-insulated equipment (G · 1 · S) as described in item 3 of the scope of patent application ', whose gravity extruder can be a team. 6 7 8 9 m p. 14