CN105563046B - The processing technology of accurate valve core of the electromagnetic valve - Google Patents
The processing technology of accurate valve core of the electromagnetic valve Download PDFInfo
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- CN105563046B CN105563046B CN201610118758.4A CN201610118758A CN105563046B CN 105563046 B CN105563046 B CN 105563046B CN 201610118758 A CN201610118758 A CN 201610118758A CN 105563046 B CN105563046 B CN 105563046B
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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
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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Abstract
The present invention relates to manufacture and the material treatment processes of a kind of manufacturing technology, more particularly to valve core of the electromagnetic valve.A kind of processing technology of accurate valve core of the electromagnetic valve, comprises the following steps：Blanking, I forging and stamping, II forging and stamping, III forging and stamping, extruding deburring, modifier treatment, milling, drilling, fraising, extruding, turning, grinding, surface grinding.The invention provides a kind of processing technology of accurate valve core of the electromagnetic valve, good manufacturability, the qualification rate height of product, manufactured valve element, dimensional accuracy height, mechanical property.
Description
Technical field
The present invention relates to manufacture and the material treatment processes of a kind of manufacturing technology, more particularly to valve core of the electromagnetic valve.
Background technology
Valve element is used to realize the control to fluid inside magnetic valve, with higher dimensional accuracy and combination property.Pass
The valve element process for making of system is complicated, is not carried out unified standard so that the qualification rate of product is low, low production efficiency.
The content of the invention
It is an object of the invention to provide a kind of processing technology of accurate valve core of the electromagnetic valve, valve element is used for inside magnetic valve
The control to fluid is realized, with higher dimensional accuracy and combination property；Processing technology proposed by the present invention is meeting valve element
On the premise of machining accuracy, improve efficiency and improve the quality of product.
To achieve the above object, the invention discloses the processing technology of accurate valve core of the electromagnetic valve, comprise the following steps：
A, blanking：The original blank of blanking is the bar of five meters of length, and material is medium carbon steel；Using punch press, using grading
Mould carry out automatic shearing punching press, obtain blank material, the quality of valve element described in the mass ratio of the blank material big 30 percent to
40 percent；
B, I forging and stamping：Using vibrating disk, the blank material is automatically delivered in middle frequency heating tube, in
Frequency stove is heated to the blank material；Blank material after heating, which is placed in I forge die, carries out I forging and stamping, obtains preliminary
Profile；
C, II forging and stamping：Product after I forging and stamping is placed in II forge die, II forging and stamping is carried out, after II forging and stamping
Product and the valve element scale error be 5mm within；
D, III forging and stamping：Product after II forging and stamping is placed in III forge die, III forging and stamping is carried out, after III forging and stamping
The ear reach required size, the macropore size than the required small 5mm-6mm of size, the lower cylinder
Wall thickness is 3mm, and the clear size of opening is than the required small 1mm of size, and the external diameter of the upper cylinder is bigger than required size
1mm；
E, extruding deburring：Using oil pressure forcing press, the product after being forged and pressed to III time is extruded, deburring, removes III
The be left behind burr of secondary forging and stamping, while extruding the ear；
F, modifier treatment：Modifier treatment is carried out, to improve its combination property；
G, milling：Using profile milling cutter, milling is carried out to the macropore, through hole, the profile milling cutter is from the macropore institute
Position enter, after the Milling Process, the macropore size is than the required small 0.05mm-0.10mm of size, institute
State through hole and reach required size；
H, drilling：Drilling processing, after drilling is processed, the taper hole size are carried out to the taper hole using forming drill
Than the required small 0.10mm-0.20mm of size；
I, fraising：Fraising processing is carried out to the taper hole using forming reamer, after fraising processing, the taper hole reaches
Required size；
J, extruding：On oil pressure forcing press, circular core is extruded from the macropore, the core is bigger than described
The big 0.03mm-0.05mm of size required by the size of hole, the material of the core is wolfram steel material, after extrusion process, institute
State macropore and reach required size；
K, turning：Using numerically controlled lathe, turnery processing is carried out to the outer wall of the lower cylinder, upper cylinder, by car
Cut after processing, the lower cylinder, the diameter of upper cylinder are than the required big 0.03mm-0.06mm of size；
L, grinding：Using emery wheel, centreless grinding processing is carried out to the outer wall of the upper cylinder, using abrasive band to the lower circle
Cylinder carries out grinding, after grinding, and the lower cylinder, upper cylinder reach required size；
M, surface grinding：Spiral vibrating finishing machine, surface grinding is carried out using abrasive material to the valve body.
Preferably, the abrasive material isCeramic particle, milling time is -15 minutes 10 minutes.
Compared with conventional art, beneficial effects of the present invention positive role is：
Punch press process velocity is fast, carries out automatic shearing punching press using progressive die using punch press, obtains blank material, can obtain
Highest processing efficiency.
Processed using three forging and stamping：I forging and stamping, II forging and stamping, III forging and stamping, make blank material move closer to the valve body institute
It is required that size.
Using oil pressure forcing press, remove III be left behind burr of forging and stamping, reduce injury of the burr to workman, change
It has been apt to outward appearance.The ear is extruded, the form accuracy of the ear can be improved.
Modifier treatment is carried out, to improve its comprehensive mechanical property, internal stress is eliminated, improves machine cut performance, be follow-up
Machining be ready.
After three forging and stamping processing, it is smaller than required size to have there is diameter in the macropore, the position of through hole
Hole, using profile milling cutter, milling is carried out to the macropore, through hole, makes the good cylindricity of the macropore, through hole acquisition and circle
Degree, due to using a cutter, being processed and formed at one time, makes the macropore and through hole obtain best axiality.Due to described big
The depth in hole is deeper, if carried out using drilling technique to the macropore, through hole in drilling processing, the macropore, through hole
Heart axis easily bends, and machining accuracy is not being met.
The depth of the taper hole is shallower, and drilling processing is carried out to the taper hole using forming drill.Then reamer is used, it is right
The taper hole is finished, to improve crudy.
On oil pressure forcing press, circular core is extruded from the macropore, extrusion process can improve described big
The surface smoothness in hole, while making the inwall of the macropore reach the effect of flow harden, improves the mechanical property of the macropore
Energy.The core is exited after the macropore than the big 0.03mm-0.05mm of size required by the macropore, the core, institute
Stating macropore can retract 0.03mm-0.05mm, so that the macropore reaches required size.
Turnery processing is carried out to the outer wall of the lower cylinder, upper cylinder using numerically controlled lathe.Due to the upper cylinder
The wall thickness of body is thicker, and grinding is carried out to the upper cylinder using emery wheel.Because the wall thickness of the lower cylinder is relatively thin, profit
Grinding is carried out with lower cylinder described in the team of abrasive band,, can be with the lower circle in grinding because the abrasive band makes flexibility
Cylinder obtains larger contact surface, and crimp is caused to the lower cylinder so as to avoid.After grinding, the light on surface
Cleanliness is improved, and dimensional accuracy is improved.
UtilizeCeramic particle is ground processing to the valve body, the valve body after milled processed, its table
Face finish is more preferable.It is described because the time is shorterSize of the ceramic particle hardly to the valve body causes shadow
Ring.
By following description and with reference to accompanying drawing, the processing technology of present invention precision valve core of the electromagnetic valve will become more clear
Clear, these accompanying drawings are used to explain embodiments of the invention.
Brief description of the drawings
Fig. 1,2 for the processing technology of the accurate valve core of the electromagnetic valve of the present invention valve core structure schematic diagram.
Embodiment
Element numbers similar in embodiments of the invention, accompanying drawing, which are described, with reference now to accompanying drawing represents similar element.Such as
Upper described, the invention provides a kind of processing technology of accurate valve core of the electromagnetic valve, good manufacturability is simple to operate, and energy consumption is low.
Fig. 1,2 for the processing technology of the accurate valve core of the electromagnetic valve of the present invention valve core structure schematic diagram.The valve body includes：Position
Ear 4 in middle part, the upper cylinder 49 positioned at the top of ear 4, the lower cylinder 6 positioned at the bottom of ear 4,
Through hole 48 inside the upper cylinder 49, it is connected to the through hole 48 and the taper hole inside the upper cylinder 49
47th, the macropore 5 inside the lower cylinder 6；The wall thickness of the lower cylinder 6 is 2mm, the outer wall of the lower cylinder 6
Surface smoothness be Ra0.8, the surface smoothness of the macropore 5 is that Ra1.6, cylindricity are that 0.004mm, surface smoothness are
Ra0.8；The surface smoothness of the taper hole 47 is Ra0.4, and circularity is 0.003mm.
A kind of processing technology of accurate valve core of the electromagnetic valve, comprises the following steps：
A, blanking：The original blank of blanking is the bar of five meters of length, and material is medium carbon steel；Using punch press, using grading
Mould carry out automatic shearing punching press, obtain blank material, the quality of valve element described in the mass ratio of the blank material big 30 percent to
40 percent；
B, I forging and stamping：Using vibrating disk, the blank material is automatically delivered in middle frequency heating tube, in
Frequency stove is heated to the blank material；Blank material after heating, which is placed in I forge die, carries out I forging and stamping, obtains preliminary
Profile；
C, II forging and stamping：Product after I forging and stamping is placed in II forge die, II forging and stamping is carried out, after II forging and stamping
Product and the valve element scale error be 5mm within；
D, III forging and stamping：Product after II forging and stamping is placed in III forge die, III forging and stamping is carried out, after III forging and stamping
The ear 4 reach required size, the macropore 5 than the required small 5mm-6mm of size, the lower cylinder 6
Wall thickness is 3mm, and the through hole 48 is than the required small 1mm of size, and the external diameter of the upper cylinder 49 is bigger than required size
1mm；
E, extruding deburring：Using oil pressure forcing press, the product after being forged and pressed to III time is extruded, deburring, removes III
The be left behind burr of secondary forging and stamping, while extruding the ear 4；
F, modifier treatment：Modifier treatment is carried out, to improve its combination property；
G, milling：Using profile milling cutter, milling is carried out to the macropore 5, through hole 48, the profile milling cutter is from the macropore
Position where 5 enters, and after the Milling Process, the macropore 5 is than the required small 0.05mm-0.10mm of size, institute
State through hole 48 and reach required size；
H, drilling：Drilling processing, after drilling is processed, the taper hole 47 are carried out to the taper hole 47 using forming drill
Than the required small 0.10mm-0.20mm of size；
I, fraising：Fraising processing is carried out to the taper hole 47 using forming reamer, after fraising processing, the taper hole 47
Reach required size；
J, extruding：On oil pressure forcing press, circular core is extruded from the macropore 5, the core is than described
The big 0.03mm-0.05mm of size required by macropore 5, the material of the core is wolfram steel material, described after extrusion process
Macropore 5 reaches required size；
J, turning：Using numerically controlled lathe, turnery processing is carried out to the outer wall of the lower cylinder 6, upper cylinder 49, passed through
After turnery processing, the lower cylinder 6, the diameter of upper cylinder 49 are than the required big 0.03mm-0.06mm of size；
K, grinding：Using emery wheel, centreless grinding processing is carried out to the outer wall of the upper cylinder 49, using abrasive band under described
Cylinder 6 carries out grinding, after grinding, and the lower cylinder 6, upper cylinder 49 reach required size；
H, surface grinding：Spiral vibrating finishing machine, surface grinding is carried out using abrasive material to the valve body.
Preferably, the abrasive material isCeramic particle, milling time is -15 minutes 10 minutes.
Compared with conventional art, the beneficial effects of the invention are as follows：
Punch press process velocity is fast, carries out automatic shearing punching press using progressive die using punch press, obtains blank material, can obtain
Highest processing efficiency.
Processed using three forging and stamping：I forging and stamping, II forging and stamping, III forging and stamping, make blank material move closer to the valve body institute
It is required that size.
Using oil pressure forcing press, remove III be left behind burr of forging and stamping, reduce injury of the burr to workman, change
It has been apt to outward appearance.The ear 4 is extruded, the form accuracy of the ear 4 can be improved.
Modifier treatment is carried out, to improve its comprehensive mechanical property, internal stress is eliminated, improves machine cut performance, be follow-up
Machining be ready.
After three forging and stamping processing, it is smaller than required size to have there is diameter in the macropore 5, the position of through hole 48
Hole, using profile milling cutter, milling is carried out to the macropore 5, through hole 48, the macropore 5, through hole 48 is obtained good cylinder
Degree and circularity, due to using a cutter, being processed and formed at one time, make the macropore 5 and through hole 48 obtain best axiality.By
It is deeper in the depth of the macropore 5, it is described big if carrying out drilling processing to the macropore 5, through hole 48 using drilling technique
Hole 5, the central axis of through hole 48 easily bend, and machining accuracy is not being met.
The depth of the taper hole 47 is shallower, and drilling processing is carried out to the taper hole 47 using forming drill.Then using hinge
Knife, is finished to the taper hole 47, to improve crudy.
On oil pressure forcing press, circular core is extruded from the macropore 5, extrusion process can improve described big
The surface smoothness in hole 5, while making the inwall of the macropore 5 reach the effect of flow harden, improves the mechanics of the macropore 5
Performance.The core than the big 0.03mm-0.05mm of size required by the macropore 5, the core exit the macropore 5 it
Afterwards, the macropore 5 can retract 0.03mm-0.05mm, so that the macropore 5 reaches required size.
Turnery processing is carried out to the outer wall of the lower cylinder 6, upper cylinder 49 using numerically controlled lathe.Due to the upper circle
The wall thickness of cylinder 49 is thicker, and grinding is carried out to the upper cylinder 49 using emery wheel.Due to the wall thickness of the lower cylinder 6
It is relatively thin, grinding is carried out using lower cylinder 6 described in the team of abrasive band, because the abrasive band makes flexibility, in grinding, Ke Yihe
The lower cylinder 6 obtains larger contact surface, and crimp is caused to the lower cylinder 6 so as to avoid.By grinding
Afterwards, the finish on surface is improved, and dimensional accuracy is improved.
UtilizeCeramic particle is ground processing to the valve body, the valve body after milled processed, its table
Face finish is more preferable.It is described because the time is shorterSize of the ceramic particle hardly to the valve body causes shadow
Ring.
Finally it is pointed out that above example is only the more representational example of the present invention.It is clear that the invention is not restricted to
Above-described embodiment, can also there is many deformations.Any letter that every technical spirit according to the present invention is made to above example
Single modification, equivalent variations and modification, are considered as belonging to protection scope of the present invention.
Claims (2)
1. a kind of processing technology of accurate valve core of the electromagnetic valve, it is characterised in that comprise the following steps：
A, blanking：The original blank of blanking is the bar of five meters of length, and material is medium carbon steel；Using punch press, entered using progressive die
Row automatic shearing punching press, obtains blank material, the quality of valve element described in the mass ratio of the blank material big 30 percent to percentage
40；
B, I forging and stamping：Using vibrating disk, the blank material is automatically delivered in middle frequency heating tube, using intermediate frequency furnace
The blank material is heated；Blank material after heating, which is placed in I forge die, carries out I forging and stamping, obtains preliminary profile；
C, II forging and stamping：Product after I forging and stamping is placed in II forge die, carries out II forging and stamping, the production after II forging and stamping
The scale error of product and the valve element is within 5mm；
D, III forging and stamping：Product after II forging and stamping is placed in III forge die, carries out III forging and stamping, the ear after III forging and stamping
Required size piece is reached, macropore size is than the required small 5mm-6mm of size, and the wall thickness of lower cylinder is 3mm, through hole chi
It is very little than the required small 1mm of size, the external diameter of upper cylinder is than the required big 1mm of size；
E, extruding deburring：Using oil pressure forcing press, the product after being forged and pressed to III time is extruded, deburring, removes III forging
The be left behind burr of pressure, while extruding the ear；
F, modifier treatment：Modifier treatment is carried out, to improve its combination property；
G, milling：Using profile milling cutter, where carrying out milling, the profile milling cutter from the macropore to the macropore, through hole
Position enters, after the Milling Process, and the macropore size is than the required small 0.05mm-0.10mm of size, described logical
Hole reaches required size；
H, drilling：Drilling processing is carried out to taper hole using forming drill, after drilling is processed, the taper hole size is than required
The small 0.10mm-0.20mm of size；
I, fraising：Fraising processing is carried out to the taper hole using forming reamer, after fraising processing, the taper hole, which reaches, to be wanted
The size asked；
J, extruding：On oil pressure forcing press, circular core is extruded from the macropore, the core is than the macropore chi
The very little required big 0.03mm-0.05mm of size, the material of the core is wolfram steel material, after extrusion process, described big
Hole reaches required size；
K, turning：Using numerically controlled lathe, turnery processing is carried out to the outer wall of the lower cylinder, upper cylinder, by turning plus
After work, the lower cylinder, the diameter of upper cylinder are than the required big 0.03mm-0.06mm of size；
L, grinding：Using emery wheel, centreless grinding processing is carried out to the outer wall of the upper cylinder, using abrasive band to the lower cylinder
Grinding is carried out, after grinding, the lower cylinder, upper cylinder reach required size；
M, surface grinding：Spiral vibrating finishing machine, surface grinding is carried out using abrasive material to valve body.
2. the processing technology of accurate valve core of the electromagnetic valve according to claim 1, it is characterised in that：The abrasive material is made pottery for 2mm
Porcelain particle, milling time is -15 minutes 10 minutes.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877138.3A CN107662087B (en) | 2016-03-02 | 2016-03-02 | The manufacturing process of high-quality precision valve core of the electromagnetic valve |
| CN201610118758.4A CN105563046B (en) | 2016-03-02 | 2016-03-02 | The processing technology of accurate valve core of the electromagnetic valve |
| CN201710875599.7A CN107378411B (en) | 2016-03-02 | 2016-03-02 | The manufacturing method of spool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118758.4A CN105563046B (en) | 2016-03-02 | 2016-03-02 | The processing technology of accurate valve core of the electromagnetic valve |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710875599.7A Division CN107378411B (en) | 2016-03-02 | 2016-03-02 | The manufacturing method of spool |
| CN201710877138.3A Division CN107662087B (en) | 2016-03-02 | 2016-03-02 | The manufacturing process of high-quality precision valve core of the electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105563046A CN105563046A (en) | 2016-05-11 |
| CN105563046B true CN105563046B (en) | 2017-11-03 |
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| CN201710875599.7A Expired - Fee Related CN107378411B (en) | 2016-03-02 | 2016-03-02 | The manufacturing method of spool |
| CN201610118758.4A Active CN105563046B (en) | 2016-03-02 | 2016-03-02 | The processing technology of accurate valve core of the electromagnetic valve |
| CN201710877138.3A Active CN107662087B (en) | 2016-03-02 | 2016-03-02 | The manufacturing process of high-quality precision valve core of the electromagnetic valve |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710875599.7A Expired - Fee Related CN107378411B (en) | 2016-03-02 | 2016-03-02 | The manufacturing method of spool |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710877138.3A Active CN107662087B (en) | 2016-03-02 | 2016-03-02 | The manufacturing process of high-quality precision valve core of the electromagnetic valve |
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| CN110052638B (en) * | 2019-04-20 | 2020-10-30 | 慈溪市中航精密机械设备制造有限公司 | Fire extinguishing bomb cabin body processing technology |
| CN110269984B (en) * | 2019-06-04 | 2022-02-18 | 盐山县金星气雾剂阀门制造有限公司 | Air needle processing technology |
| CN110180949B (en) * | 2019-06-24 | 2021-01-01 | 东莞市康硕电子有限公司 | Cold extrusion process of progressive die of radio frequency connector |
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| CN111037221A (en) * | 2019-08-31 | 2020-04-21 | 重庆铁马工业集团有限公司 | Method for processing cast aluminum valve hole |
| CN111468891B (en) * | 2020-03-17 | 2021-10-19 | 无锡鹰贝精密液压有限公司 | Production process of high-precision deep-hole valve element |
| CN112475785A (en) * | 2020-10-21 | 2021-03-12 | 湖北冶鑫汽车零部件有限公司 | Valve sleeve machining process |
| CN112247496B (en) * | 2020-11-16 | 2022-07-19 | 常州艾肯智造科技有限公司 | High-precision machining method for valve core of floating ball type drain valve |
| CN112719912A (en) * | 2020-12-22 | 2021-04-30 | 贵州顺安科技有限公司 | Probe double-end beveler |
| CN112648422B (en) * | 2020-12-28 | 2022-08-09 | 新乡市平原工业滤器有限公司 | Manufacturing method of high-temperature and high-pressure resistant hydraulic part |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04159029A (en) * | 1990-10-17 | 1992-06-02 | Shinko Seisakusho:Kk | Manufacture of metal made cylindrical valve |
| JP2007125677A (en) * | 2005-11-07 | 2007-05-24 | Toyota Motor Corp | Method for manufacturing gear |
| CN101152692A (en) * | 2007-09-20 | 2008-04-02 | 王仁辉 | Technique for processing tin bronze valve body and tube union |
| CN101362280A (en) * | 2008-09-12 | 2009-02-11 | 黄勇 | Production method of ball valve core |
| CN103711934A (en) * | 2013-12-31 | 2014-04-09 | 玉环县勃特铜业有限公司 | Valve core sleeve in fast-opening valve core and machining method of valve core sleeve |
| CN104874984A (en) * | 2015-06-02 | 2015-09-02 | 无锡阳工机械制造有限公司 | Processing technique of reversing valve body |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5177866A (en) * | 1991-08-30 | 1993-01-12 | Ford Motor Company | Method of assembling a valve system during composite molding process |
| CN1148676A (en) * | 1995-10-24 | 1997-04-30 | 富士乌兹克斯株式会社 | Lift valve and production method thereof |
| CN100574970C (en) * | 2008-01-22 | 2009-12-30 | 西安交通大学 | A kind of manufacturing process of ball valve core |
| CN101324278A (en) * | 2008-07-31 | 2008-12-17 | 南阳开天工程机械有限公司 | Hydraulic breaking hammer change-over valve and manufacturing method thereof |
| US9545694B2 (en) * | 2013-07-18 | 2017-01-17 | Valentin POSTEVKA | Cylindrical valve assembly |
| CN103612072B (en) * | 2013-11-21 | 2016-06-22 | 芜湖三花自控元器件有限公司 | stop valve body processing technique |
| CN104214363B (en) * | 2014-08-29 | 2016-06-15 | 温州市阳泰紧固件有限公司 | A kind of single mouth ball valve and manufacturing process thereof |
| CN104454746B (en) * | 2014-11-29 | 2017-03-22 | 南京萨伯工业设计研究院有限公司 | Motor flushing valve block and machining method thereof |
| CN104588993B (en) * | 2014-12-12 | 2017-05-17 | 龙工（上海）精工液压有限公司 | Valve body machining method |
-
2016
- 2016-03-02 CN CN201710875599.7A patent/CN107378411B/en not_active Expired - Fee Related
- 2016-03-02 CN CN201610118758.4A patent/CN105563046B/en active Active
- 2016-03-02 CN CN201710877138.3A patent/CN107662087B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04159029A (en) * | 1990-10-17 | 1992-06-02 | Shinko Seisakusho:Kk | Manufacture of metal made cylindrical valve |
| JP2007125677A (en) * | 2005-11-07 | 2007-05-24 | Toyota Motor Corp | Method for manufacturing gear |
| CN101152692A (en) * | 2007-09-20 | 2008-04-02 | 王仁辉 | Technique for processing tin bronze valve body and tube union |
| CN101362280A (en) * | 2008-09-12 | 2009-02-11 | 黄勇 | Production method of ball valve core |
| CN103711934A (en) * | 2013-12-31 | 2014-04-09 | 玉环县勃特铜业有限公司 | Valve core sleeve in fast-opening valve core and machining method of valve core sleeve |
| CN104874984A (en) * | 2015-06-02 | 2015-09-02 | 无锡阳工机械制造有限公司 | Processing technique of reversing valve body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107378411B (en) | 2019-01-18 |
| CN107662087A (en) | 2018-02-06 |
| CN107378411A (en) | 2017-11-24 |
| CN107662087B (en) | 2019-04-26 |
| CN105563046A (en) | 2016-05-11 |
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