CN113523733A - Production process of stainless steel water meter shell - Google Patents
Production process of stainless steel water meter shell Download PDFInfo
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- CN113523733A CN113523733A CN202110934577.XA CN202110934577A CN113523733A CN 113523733 A CN113523733 A CN 113523733A CN 202110934577 A CN202110934577 A CN 202110934577A CN 113523733 A CN113523733 A CN 113523733A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
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Abstract
The invention provides a production process of a stainless steel water meter shell, which mainly comprises the process flows of processing and manufacturing of all components of the water meter shell, welding and assembling, sand blasting treatment of the shell after the welding and assembling are completed, machining of the installed size, machining of a positioning groove of a machine core, and testing of tightness and pressure resistance. The process can realize the production and the manufacture of the watchcase made of the stainless steel material, not only can improve the quality of the watchcase, but also has no serious air environment pollution problem compared with the traditional casting process, is beneficial to popularization and application, and further has few parts and easy realization of assembly in the processing process, thereby greatly improving the production efficiency of the watchcase.
Description
Technical Field
The invention relates to the technical field of processing and manufacturing of water meter cases, in particular to a production process of a stainless steel water meter case.
Background
The traditional water meter shell in China is mainly formed by casting, so that quality defects such as sand holes, air holes and the like with different degrees exist in the casting and founding process, and the qualification rate of products is very low; and the material of the traditional water meter shell is mainly metal materials such as cast gray iron, nodular cast iron and cast lead brass, and in the using process, metal pollution of water can be caused due to the existence of metal elements such as iron and copper. And the traditional casting process has the problems of complex process, high labor intensity of workers, high energy consumption, serious air pollution and the like.
Disclosure of Invention
The invention aims to provide a production process of a stainless steel water meter shell, which can realize the production and the manufacture of the meter shell made of the stainless steel material, not only can improve the quality of the meter shell, but also has no serious air environment pollution problem compared with the traditional casting process, is beneficial to popularization and application, and further has few parts and easy realization of assembly in the processing process, thereby greatly improving the production efficiency of the meter shell.
The technical scheme adopted by the invention for solving the technical problems is as follows: a production process of a stainless steel water meter case is characterized by comprising the following steps:
s1, producing each component part;
the components of the stainless steel water meter case comprise: the left half shell, the right half shell, the threaded joint, the middle retainer ring and the large-opening threaded retainer ring;
the production process flow of the left half shell and the right half shell is as follows: 1) cutting and blanking the stainless steel plate by using a laser cutting machine, and cutting out a whole blank plate required by the stretching forming of the left half shell and the right half shell; 2) stretching and forming the whole blank plate by using an oil press; 3) shaping the blank shell after the stretching forming by using a punch; 4) dividing the shaped blank shell by using a punch press to obtain a left half shell and a right half shell;
the production process flow of the threaded joint is as follows: 1) cutting and blanking the stainless steel pipe by using a laser cutting machine, and cutting a section of pipe section required by processing a threaded joint; 2) processing the pipe section by using a cold header to obtain a blank material part of the threaded joint; 3) respectively carrying out flat head, inner cavity machining and thread turning machining processes on a threaded joint blank material by using a numerical control machine tool so as to obtain a threaded joint;
the production process flow of the middle retainer ring is as follows: 1) cutting and blanking the stainless steel plate by using a laser cutting machine, and cutting and blanking blank plates required by processing the middle check ring; 2) and (4) performing stretch forming on the lower blank plate by using an oil press to obtain the middle retainer ring.
The production process flow of the large-opening thread retainer ring is as follows: 1) blanking the stainless steel pipe by using a laser cutting machine, and cutting out a section of blank large ring material required by processing the large-opening threaded retainer ring;
s2, assembling and welding the components;
1) clamping the middle retainer ring at the corresponding position of the left half shell or the right half shell, enabling the water inlet guide plate on the middle retainer ring to be positioned in the half shell water inlet pipe on the left half shell or the right half shell, enabling the water outlet guide plate of the middle retainer ring to be positioned in the half shell water outlet pipe on the left half shell or the right half shell, and then symmetrically buckling the left half shell and the right half shell to obtain a complete shell;
2) sleeving two threaded joints on the end parts of the water inlet pipe and the water outlet pipe on the complete shell respectively; (by means of pneumatic machine tools)
3) Sleeving a blank large ring material on the outer side of the upper end of the large opening part of the finished shell, and enabling the upper plane of the blank large ring material to be flush with the upper end face of the large opening part;
4) cleaning the assembled shell by using an ultrasonic cleaning machine;
5) after cleaning, carrying out butt welding of the left half shell and the right half shell, fixed welding of a threaded joint and fixed welding of a blank large ring material by using a laser welding machine;
after welding, coating solder on the joints of the middle retainer ring and the side walls of the left half shell and the right half shell, sending the shells into a brazing furnace for brazing after the solder is coated, and completing the high-temperature brazing;
s3, processing the large-opening thread retainer ring and the inside of the shell;
processing external threads on the outer surface of the blank large ring material by using a numerical control machine; the method comprises the following steps of processing the installation size of the water meter movement in the shell by using a numerical control machine tool so as to realize the smooth installation of the water meter movement in the shell;
s4, machining a machine core positioning groove on the shell by using a milling machine;
s5, performing a pressing test on the shell, wherein the pressing test comprises a sealing pressing procedure of the shell and a pressure resistance pressing test of the shell;
and S6, cleaning the qualified products by using an ultrasonic cleaning machine, drying, and boxing.
Preferably, in step S1, a process flow of producing a lead solder strip is further included, where the process flow of producing the lead solder strip is as follows: 1) cutting and blanking the stainless steel plate by using a laser cutting machine, and directly obtaining a lead sealing welding sheet after cutting; in step 6) of S2, after the brazing is completed, the lead seal bonding pads are welded to the corresponding positions of the case by a laser welding machine, and after the welding of the lead seal bonding pads is completed, the surface of the case is subjected to sand blasting by a sand cleaner.
Further, in step 5) of S2, the specific method of butt welding the left half shell and the right half shell, fixedly welding the threaded joint, and fixedly welding the blank large loop material includes: the shell is well positioned firstly, during positioning, the blank large ring material is placed upwards, then, welding of a gap located at the upper part of the butt joint part of the left half shell and the right half shell is carried out, after the welding is completed, welding of a threaded joint at the water outlet end of the shell is carried out, after the welding is completed, welding of a threaded joint at the water inlet end of the shell is carried out, after the welding is completed, welding of the blank large ring material is carried out again, after the welding is completed, positioning of the shell is carried out again, the blank large ring material is placed downwards, after the positioning is completed, welding of the gap located at the upper part of the butt joint part of the left half shell and the right half shell is carried out again, and after the welding is completed, the whole welding of the shell is completed.
Further, in step 1) of S1, in the process of clamping the middle retainer ring on the left half shell or the right half shell, the middle retainer ring is clamped under the limiting protrusions disposed on both the left half shell and the right half shell.
Further, in step 2) of S2, a press fitting operation is performed by the pneumatic machine tool at the time of setting the threaded joint.
Further, in step 3) of S2, when the large blank loop is fitted, the press-fitting operation of the large blank loop is performed by the hydraulic press.
The invention has the beneficial effects that: each component of the water meter shell is made of stainless steel materials, and the stainless steel materials do not have the quality problems of air holes, sand holes and other materials, so that the quality of the water meter shell is improved; furthermore, the stainless steel material has no water pollution condition, so that the use safety of the water meter shell can be improved; in the process, the number of the components of the water meter shell is small, so that the assembly and processing steps of the subsequent meter shell are greatly simplified, and the processing and production efficiency of the water meter shell is improved; in each assembling process, processes such as a laser cutting machine, laser welding and the like are mainly adopted, and in the process, the air pollution degree is very low, so that the problem of serious air pollution environment can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are part of the preferred embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view showing the stainless steel wristwatch case in a state in which the components are separated from each other;
FIG. 2 is a schematic view of the finished stainless steel watch case;
FIG. 3 is an enlarged view of FIG. 1 at A;
in the figure: the device comprises a shell 1, a left half shell 11, a right half shell 12, a water inlet pipe 13, a half shell water inlet pipe 131, a water outlet pipe 14, a half shell water outlet pipe 141, a movement positioning groove 15, a limiting bump 16, a large opening 17, a threaded joint 2, a middle check ring 3, a water outlet guide plate 31, a water inlet guide plate 32, a large opening threaded check ring 4 and a lead sealing welding piece 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the specific embodiments and accompanying drawings 1-3, and it is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.
When the invention is used for processing and manufacturing the stainless steel water meter shell, corresponding stainless steel pipe and stainless steel plate raw materials are needed to be purchased firstly, so that the production and the manufacture of the stainless steel water meter shell can be smoothly realized by using the process.
The invention provides a production process of a stainless steel water meter shell, which comprises the following steps:
s1, producing each component part;
the components of the stainless steel water meter case comprise: the left half shell 11, the right half shell 12, the screwed joint 2, the middle retainer ring 3 and the large-opening threaded retainer ring 4;
the production process flow of the left half shell 11 and the right half shell 12 is as follows: 1) cutting and blanking stainless steel plates by using a laser cutting machine, cutting a whole blank plate required by stretching and forming the left half shell 11 and the right half shell 12, and cutting and blanking the whole blank plate according to the specification of the water meter shell actually produced according to the specific size of the whole blank plate when cutting and blanking is carried out so as to enable the whole blank plate to meet the production requirement; 2) stretching and forming the whole blank plate by using an oil press; in the process, the oil press drives the corresponding die to extrude the whole blank plate, and the plate is correspondingly stretched according to the shape of the inner cavity of the die in the extrusion process, so that a blank shell with a left shell 11 and a right shell 12 is obtained; 3) shaping the blank shell after the stretching forming by using a punch; 4) the shaped blank shell is divided by a punch press to obtain a left half shell 11 and a right half shell 12, and the divided left half shell 11 and right half shell 12 are in a left-right symmetrical state in structure.
The production process flow of the threaded joint 2 is as follows: 1) cutting and blanking the stainless steel pipe by using a laser cutting machine, and cutting a section of pipe section required by processing a threaded joint; 2) processing the pipe section by using a cold header to obtain a screwed joint blank material part, and when cutting and blanking are carried out, blanking a length of the pipe section by a specified length material according to the specification of the water meter shell which is actually produced so as to enable the pipe section to meet the production requirement; 3) respectively carrying out flat head, inner cavity machining and thread turning machining processes on a threaded joint blank material by using a numerical control machine tool so as to obtain a threaded joint; the numerical control machine tool performs the processes of facing, machining the inner cavity and turning the thread, which is a common product machining process flow in the field, so the detailed description is not repeated here.
The production process flow of the middle retainer ring 3 is as follows: 1) cutting and blanking a stainless steel plate by using a laser cutting machine, cutting and blanking a blank plate required by processing an intermediate check ring, and blanking a sizing material according to the specification of a water meter shell produced actually according to the size of the blank plate when cutting and blanking are carried out so as to enable the blank plate to meet the production requirement; 2) stretching and forming the lower blank plate by using an oil press to obtain an intermediate retainer ring 3;
the production process flow of the large-opening thread retainer ring 4 is as follows: 1) blanking the stainless steel pipe by using a laser cutting machine, and cutting out a section of blank large ring material required by processing the large-opening threaded retainer ring; when cutting and blanking are carried out, the size of the blank large ring material is cut into a specified size according to the specification of the water meter shell produced actually, so that the blanking meets the production requirement.
In the actual production and manufacturing process, the related processing and manufacturing processes of the components can be performed synchronously or sequentially.
S2, assembling and welding the components;
6) the middle retainer ring 3 is clamped at the corresponding position of the left half shell 11 or the right half shell 12, the water inlet guide plate 32 on the middle retainer ring 3 is positioned in the half shell water inlet pipe 131 on the left half shell 11 or the right half shell 12, the water outlet guide plate 31 of the middle retainer ring 3 is positioned in the half shell water outlet pipe 141 on the left half shell 11 or the right half shell 12, and then the left half shell 11 and the right half shell 12 are symmetrically buckled, so that a complete shell 1 is obtained. In the actual production process, in order to facilitate the quick and accurate positioning of the middle retainer ring 3 on the left half shell 11 or the right half shell 12, here, in the production process of the left half shell 11 and the right half shell 12, the shell is provided with the limiting bump 16, and during the assembly, the middle retainer ring 3 can be clamped below the limiting bump 16, so that the quick positioning of the middle retainer ring 3 is realized.
7) Two screwed joints 2 are respectively sleeved on the end parts of a water inlet pipe 13 and a water outlet pipe 14 on the complete shell 1; in practical application, the press fitting work of the two threaded connectors 2 on the water inlet pipe 13 or the water outlet pipe 14 can be realized by using a pneumatic machine tool.
8) Sleeving a blank large ring material on the outer side of the upper end of the large opening part 17 of the finished shell 1, and enabling the upper plane of the blank large ring material to be flush with the upper end surface of the large opening part 17; in actual operation, the blank large ring material can be pressed on the large opening part 17 by using an oil press.
9) Cleaning the assembled shell 1 by using an ultrasonic cleaning machine; the ultrasonic cleaning machine is an existing cleaning product in the market, so the structure and the cleaning principle of the ultrasonic cleaning machine are not explained in detail herein;
10) after the cleaning, the laser welding machine is used for butt welding of the left half shell 11 and the right half shell 12, fixed welding of the threaded joint 2 and fixed welding of a blank large ring material. In the actual operation process, the welding work can be carried out according to the following steps: the shell 1 is well positioned firstly, during positioning, a blank large ring material is placed upwards (namely, a large opening part 17 is placed upwards), then, welding of a gap at the butt joint part of the left half shell 11 and the right half shell 12, which is positioned at the upper part, is carried out, after the welding is finished, welding of a threaded joint 2 at the water outlet end of the shell 1 is carried out, after the welding is finished, welding of a blank large ring material is carried out, after the welding is finished, positioning of the shell 1 is carried out again, a blank large ring material is placed downwards (namely, a large opening part 17 is placed downwards), after the positioning is finished, welding of a gap at the butt joint part of the left half shell 11 and the right half shell 12, which is positioned at the upper part, is carried out, and after the welding is finished, the whole welding of the shell 1 is finished.
11) After welding, coating solder on the joints of the middle retainer ring 3 and the side walls of the left half shell 11 and the right half shell 12, and after the solder is coated, sending the shell 1 into a brazing furnace for brazing operation, and completing the over-high temperature brazing; the brazing process is a welding operation known in the art of welding and therefore the principle of the brazing process will not be described in detail here.
S3, processing the large-opening thread retainer ring 4 and the inside of the shell 1;
processing external threads on the outer surface of the blank large ring material by using a numerical control machine; processing the installation size of the water meter movement in the shell 1 by using a numerical control machine tool so as to realize the smooth installation of the water meter movement in the shell 1;
s4, machining the movement positioning groove 15 on the shell 1 by using a milling machine; when the water meter movement is installed, the positioning block on the water meter movement can be just clamped in the movement positioning groove 15, so that the circumferential positioning of the water meter movement in the shell 1 is realized.
S5, performing a pressing test on the shell 1, wherein the pressing test comprises a sealing pressing procedure of the shell 1 and a pressure resistance pressing test of the shell 1; the tightness quality of the shell 1 can be detected through the tightness pressing process so as to prevent the water leakage phenomenon of the shell; through the pressure resistance test, the water pressure bearing capacity of the shell 1 can be detected, so that the shell 1 is prevented from being propped open by high-pressure water in the using process.
And S6, cleaning the qualified products by using an ultrasonic cleaning machine, drying, and boxing.
In the actual production process, in step S1, a production process flow of the lead solder strip 5 is further included, where the production process flow of the lead solder strip 5 is as follows: 1) cutting and blanking stainless steel plates by using a laser cutting machine, directly obtaining a lead seal welding sheet 5 after cutting, and blanking according to the water meter type in the actual production process according to the size of the lead seal welding sheet 5 so as to meet the production requirement of the meter shell; in step 6) of S2, after the brazing is completed, the laser welding machine is used to weld the lead sealing bonding pads 5 to the corresponding positions of the housing 1, the specific lead sealing bonding pads 5 are welded between the large opening portion 17 and the water inlet pipe 13, the lead sealing bonding pads 5 are vertically welded, and after the welding of the lead sealing bonding pads 5 is completed, the sand blasting treatment is performed on the surface of the housing 1 by using a sand cleaning machine.
In the present invention, "left", "right", "front", and "rear" are relative positions used for convenience in describing positional relationships, and therefore, should not be interpreted as absolute positions as limiting the scope of protection.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
While the preferred embodiments and examples of the present invention have been described in detail, it will be apparent to those skilled in the art that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (6)
1. A production process of a stainless steel water meter case is characterized by comprising the following steps:
s1, producing each component part;
the components of the stainless steel water meter case comprise: the left half shell, the right half shell, the threaded joint, the middle retainer ring and the large-opening threaded retainer ring;
the production process flow of the left half shell and the right half shell is as follows: 1) cutting and blanking the stainless steel plate by using a laser cutting machine, and cutting out a whole blank plate required by the stretching forming of the left half shell and the right half shell; 2) stretching and forming the whole blank plate by using an oil press; 3) shaping the blank shell after the stretching forming by using a punch; 4) dividing the shaped blank shell by using a punch press to obtain a left half shell and a right half shell;
the production process flow of the threaded joint is as follows: 1) cutting and blanking the stainless steel pipe by using a laser cutting machine, and cutting a section of pipe section required by processing a threaded joint; 2) processing the pipe section by using a cold header to obtain a blank material part of the threaded joint; 3) respectively carrying out flat head, inner cavity machining and thread turning machining processes on a threaded joint blank material by using a numerical control machine tool so as to obtain a threaded joint;
the production process flow of the middle retainer ring is as follows: 1) cutting and blanking the stainless steel plate by using a laser cutting machine, and cutting and blanking blank plates required by processing the middle check ring; 2) and (4) performing stretch forming on the lower blank plate by using an oil press to obtain the middle retainer ring.
The production process flow of the large-opening thread retainer ring is as follows: 1) blanking the stainless steel pipe by using a laser cutting machine, and cutting out a section of blank large ring material required by processing the large-opening threaded retainer ring;
s2, assembling and welding the components;
1) clamping the middle retainer ring at the corresponding position of the left half shell or the right half shell, enabling the water inlet guide plate on the middle retainer ring to be positioned in the half shell water inlet pipe on the left half shell or the right half shell, enabling the water outlet guide plate of the middle retainer ring to be positioned in the half shell water outlet pipe on the left half shell or the right half shell, and then symmetrically buckling the left half shell and the right half shell to obtain a complete shell;
2) sleeving two threaded joints on the end parts of the water inlet pipe and the water outlet pipe on the complete shell respectively;
3) sleeving a blank large ring material on the outer side of the upper end of the large opening part of the finished shell, and enabling the upper plane of the blank large ring material to be flush with the upper end face of the large opening part;
4) cleaning the assembled shell by using an ultrasonic cleaning machine;
5) after cleaning, carrying out butt welding of the left half shell and the right half shell, fixed welding of a threaded joint and fixed welding of a blank large ring material by using a laser welding machine;
6) after welding, coating solder on the joints of the middle retainer ring and the side walls of the left half shell and the right half shell, sending the shells into a brazing furnace for brazing after the solder is coated, and completing the high-temperature brazing;
s3, processing the large-opening thread retainer ring and the inside of the shell;
processing external threads on the outer surface of the blank large ring material by using a numerical control machine; the method comprises the following steps of processing the installation size of the water meter movement in the shell by using a numerical control machine tool so as to realize the smooth installation of the water meter movement in the shell;
s4, machining a machine core positioning groove on the shell by using a milling machine;
s5, performing a pressing test on the shell, wherein the pressing test comprises a sealing pressing procedure of the shell and a pressure resistance pressing test of the shell;
and S6, cleaning the qualified products by using an ultrasonic cleaning machine, drying, and boxing.
2. The process of claim 1, further comprising a process of manufacturing a lead sealing tab in step S1, wherein the process of manufacturing a lead sealing tab comprises: 1) cutting and blanking the stainless steel plate by using a laser cutting machine, and directly obtaining a lead sealing welding sheet after cutting; in step 6) of S2, after the brazing is completed, the lead seal bonding pads are welded to the corresponding positions of the case by a laser welding machine, and after the welding of the lead seal bonding pads is completed, the surface of the case is subjected to sand blasting by a sand cleaner.
3. The process of claim 2, wherein in step 5) of step S2, butt welding the left half case and the right half case, fixedly welding the threaded joint, and fixedly welding the blank large ring material by the specific method comprising: the shell is well positioned firstly, during positioning, the blank large ring material is placed upwards, then, welding of a gap located at the upper part of the butt joint part of the left half shell and the right half shell is carried out, after the welding is completed, welding of a threaded joint at the water outlet end of the shell is carried out, after the welding is completed, welding of a threaded joint at the water inlet end of the shell is carried out, after the welding is completed, welding of the blank large ring material is carried out again, after the welding is completed, positioning of the shell is carried out again, the blank large ring material is placed downwards, after the positioning is completed, welding of the gap located at the upper part of the butt joint part of the left half shell and the right half shell is carried out again, and after the welding is completed, the whole welding of the shell is completed.
4. The process of claim 3, wherein in step 1) of S1, the middle retainer is engaged with the lower portions of the limit protrusions of the left and right half shells during the process of engaging the middle retainer with the left or right half shells.
5. The process of manufacturing a stainless steel water meter case as set forth in claim 4, wherein in step 2) of S2, press fitting is performed by a pneumatic machine while fitting the threaded joint.
6. The process of manufacturing a stainless steel water gauge case as set forth in claim 5, wherein in step 3) of S2, press fitting of the raw large coil is performed by an oil press while the raw large coil is fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110934577.XA CN113523733A (en) | 2021-08-16 | 2021-08-16 | Production process of stainless steel water meter shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110934577.XA CN113523733A (en) | 2021-08-16 | 2021-08-16 | Production process of stainless steel water meter shell |
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| Publication Number | Publication Date |
|---|---|
| CN113523733A true CN113523733A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110934577.XA Withdrawn CN113523733A (en) | 2021-08-16 | 2021-08-16 | Production process of stainless steel water meter shell |
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| CN (1) | CN113523733A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178727A (en) * | 2021-12-10 | 2022-03-15 | 邢增彬 | Machining method for multiple-welding intelligent water meter shell |
| CN114700695A (en) * | 2022-04-13 | 2022-07-05 | 河北茵斯托曼电子科技有限公司 | Stainless steel water meter valve body and machining process thereof |
-
2021
- 2021-08-16 CN CN202110934577.XA patent/CN113523733A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178727A (en) * | 2021-12-10 | 2022-03-15 | 邢增彬 | Machining method for multiple-welding intelligent water meter shell |
| CN114700695A (en) * | 2022-04-13 | 2022-07-05 | 河北茵斯托曼电子科技有限公司 | Stainless steel water meter valve body and machining process thereof |
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Application publication date: 20211022 |