CN107275909B - A kind of elimination hermetically sealed connector electrode guide post gas leakage method - Google Patents
A kind of elimination hermetically sealed connector electrode guide post gas leakage method Download PDFInfo
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- CN107275909B CN107275909B CN201710466232.XA CN201710466232A CN107275909B CN 107275909 B CN107275909 B CN 107275909B CN 201710466232 A CN201710466232 A CN 201710466232A CN 107275909 B CN107275909 B CN 107275909B
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- guide post
- electrode guide
- gas leakage
- dislocation
- elimination
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008030 elimination Effects 0.000 title claims abstract description 9
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 9
- 238000004080 punching Methods 0.000 claims abstract description 25
- 230000007547 defect Effects 0.000 claims abstract description 20
- 238000000137 annealing Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 150000002739 metals Chemical class 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 14
- 238000007689 inspection Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910017060 Fe Cr Inorganic materials 0.000 description 2
- 229910002544 Fe-Cr Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of elimination hermetically sealed connector electrode guide post gas leakage methods, utilize the dislocation eliminating deformation metal wire rod gas leakage of the microstructure of metals of electrode guide post.Its method includes：(1) full annealed technique is homogenized metallographic structure, (2) dislocation deformation, (3) complex, (4) end face punching press.The present invention is homogenized metallographic structure using full annealed technique, and cold punching method folded among electrode, completes tissue dislocation, eliminate surface and internal tiny crack, internal capillaries latent defect.Eliminate causes equipment to break down because of electrode guide post gas leakage.The method of the present invention is simple, practical, reduces manufacturing cost, improves economic benefit.
Description
Technical field
The invention belongs to connector electrode guide post field, specifically a kind of elimination hermetically sealed connector electrode guide post gas leakage
Method.
Background technology
The connector of vacuum tight has widely in high-end industrial equipment, the application of Medical Devices and military product
Purposes, this highly reliable hermetically sealed connector are prepared by the technology that high temperature seals by metal and glass, wherein electrode
Guide post largely pulls into metal wire rod with Fe-Cr or Fe-Ni alloy/C and is made, especially Fe-Cr alloy wires (the domestic trade mark
4J-28, external trade mark SUS446), the coefficient of expansion is moderate, cheap, but since the low-temperature oxidation of Cr forms multivariant oxide,
So that smelting technique difficulty is higher, it is easy to generate dross and grain boundary defects, after leading to drawn wire, dross can become capillary
Pipe, grain boundary defects can become internal or external crackle, cause equipment to break down so as to cause electrode gas leakage.Patent of the present invention
It is based on eliminating the specific aim solution taken of this latent defect.
Invention content
Technical problem to be solved：The present invention is directed to electrode guide post Air Leakage Defect, provides a kind of elimination hermetically sealed connector
Electrode guide post gas leakage method.
Technical solution:A kind of elimination hermetically sealed connector electrode guide post gas leakage method, utilizes the metallic microscopic group of electrode guide post
The dislocation eliminating deformation metal wire rod gas leakage knitted.
Its method includes：
(1) full annealed technique is homogenized metallographic structure：Electrode guide post is put into atmosphere protection annealing furnace, 700-900
Degree Celsius full annealed 40-60 minutes, hardness reduce 20-40%；
(2) dislocation deformation：After the electrode guide post cooling after annealing, it is placed in folding machine and is folded among electrode guide post
Dislocation deformation；Tissue dislocation is completed, surface and internal tiny crack, internal capillaries latent defect are eliminated；
(3) complex：The electrode guide post of dislocation deformation is put into punching press complex in punching machine；
(4) end face punching press：Electrode guide post after complex is put into punching machine, carries out end face punching press, secondary plugging end face lacks
It falls into, further strengthens air-tightness, at electrode guide post finished product.
Described that electrode guide post is put into atmosphere protection annealing furnace, 800 degrees Celsius of full annealeds 50 minutes, hardness reduces
30%.
Advantageous effect：The present invention is homogenized metallographic structure using full annealed technique, and cold punching method folded among electrode,
Tissue dislocation is completed, surface and internal tiny crack, internal capillaries latent defect are eliminated.End face cold extrusion, secondary plugging end face
Defect further strengthens air-tightness.Eliminate causes equipment to break down because of electrode guide post gas leakage.The method of the present invention is simple,
Practicality reduces manufacturing cost, improves economic benefit.
Description of the drawings
Fig. 1 is prior art electrode guide post loaded on schematic diagram in connector.
Fig. 2 is the existing electrode guide post schematic diagram of the untreated preceding existing defects of the present invention.
Fig. 3 is the electrode guide post schematic diagram after present invention dislocation deformation process.
Fig. 4 is punching press complex of the present invention treated electrode guide post schematic diagram.
Fig. 5 is the electrode guide post schematic diagram after end face stamping process of the present invention.
Figure label represents：1 electrode guide post, 2 glass insulators, 3 metal bases, 4 end faces, the dislocation of 5 crackles.It is split inside 6
Line
Specific implementation mode
See Fig. 1, in the prior art, connector is made of existing electrode guide post 1, glass insulator 2, metal base 3, this is
The prior art, the present invention is directed to be directed to existing electrode guide post to carry out eliminating electrode guide post gas leak treatment method.
See that Fig. 2-5, a kind of elimination hermetically sealed connector electrode guide post gas leakage method utilize the microstructure of metals of electrode guide post
Dislocation eliminating deformation metal wire rod gas leakage.
Its method includes：
(1) full annealed technique is homogenized metallographic structure：Electrode guide post is put into atmosphere protection annealing furnace, 700-900
Degree Celsius full annealed 40-60 minutes, hardness reduce 20-40%；
(2) dislocation deformation：After the electrode guide post cooling after annealing, it is placed in folding machine and is folded among electrode guide post
Dislocation deformation；Tissue dislocation is completed, surface and internal tiny crack, internal capillaries latent defect are eliminated；
(3) complex：The electrode guide post of dislocation deformation is put into punching press complex in punching machine；
(4) end face punching press：Electrode guide post after complex is put into punching machine, carries out end face punching press, secondary plugging end face lacks
It falls into, further strengthens air-tightness, at electrode guide post finished product.
In one embodiment, described that electrode guide post is put into atmosphere protection annealing furnace, 800 degrees Celsius of full annealeds
50 minutes, hardness reduced by 30%.
One, to existing electrode guide post leakage test.
The method of current trial wire rod (electrode guide post) internal flaw is to use X-ray or eddy current inspection technology, in line processed
During monitor, once defect occur, then alarm and rejecting this length of wire, effect is intuitively effective, can largely remove
Defect.But since some defects are excessively subtle, both inspection techniques are just difficult to, therefore, in the actual use process,
It is constantly present a certain proportion of electrode guide post gas leakage, inventor is long with 3.2 millimeters made of 4J28 in actual production and 4J29
For the product of 36.5 millimeters of degree, statistics below has been done：
Table 1：Electrode guide post leakage test.
It may determine that according to the above statistical result, 4J28 ratio 4J29 alloys are more prone to defect, without flaw detection
4J28 electrode guide post Air Leakage Defects rate is high, and X-ray and eddy current inspection can detect and reject surface defect, but can not still prevent
Tiny internal flaw.
And for vacuum tight device, serious defect is undoubtedly by the gas leakage of electrode, so for air-tightness
For the product of highly reliable requirement, the air-tightness for spending a large amount of manpower and materials to remove full inspection connector of still having to, but according to
The generation of leakage phenomenon can not so be prevented.
Two, contrast experiment
Confirm after X-ray and eddy current inspection defective electrode guide post as Experimental comparison with reference to sample using have passed through.
Confirm after X-ray and eddy current inspection defective electrode guide post as improving sample and native defect using have passed through
Sample is compared.
In addition to the tissue dislocation required draw point folding machine of method proposed by the invention is home-built equipment, remaining is all made of logical
Intermetallic composite coating and connector production equipment.
1, material used：It chooses and is detected by X-ray and eddy current inspection, the trade mark is that the defective samples of 4J28 and 4J29 are each
400 electrode guide posts, specification are 3,2 millimeters of diameter, and 36.5 millimeters of length is spare.It is corresponding to use 800 metal bases and glass
Insulator.
2, it is sintered 20 sets of fixture, is divided into two groups and is tested.
3, equipment：Atmosphere protection annealing furnace 1 makes manual draw point folding machine one, 40 tons of punching machines 1,120 tons of punching machines by oneself
1, atmosphere sintering furnace 1, helium leak detector one, corresponding 2 sets of mold.
4, the sample of two groups of different materials is divided into 2 groups, each 200 samples of each material are spare, make following number, table 2：
5, number be 4J28-N and each 200 of the electrode guide post of 4J29-N respectively sintering fixture on assembly metal base and
Glass insulator is put into atmosphere sintering furnace, and 980 degrees Celsius sinter product into, and number is C-4J28-N and C-4J29-N is spare.
6, number is 4J28-N and each 200 of the electrode guide post of 4J29-N is respectively in being put into atmosphere protection annealing furnace, 800
Degree Celsius full annealed 50 minutes, hardness reduce by 30%, after the electrode guide post cooling after annealing, are placed on homemade folding
Following shape is separately folded into machine, is then placed in punching press complex in 120 tons of punching machines, the electrode guide post after complex is put into 40 tons of punchings
In bed, end face punching press is carried out, the electrode guide post sample number into spectrum handled by present invention process method is：4J28-T and 4J29-T.
7, it is 4J28-T and the electrode guide post of 4J29-T assembly metal base and glass insulation on sintering fixture by number
Body is put into atmosphere sintering furnace, and 980 degrees Celsius sinter product into, and number is C-4J28-T and C-4J29-T, spare.
Table 3：Air tightness test Comparative result.
Helium leaks hunting result explanation, and the company of defective electrode guide post manufacture is detected by X-ray and eddy current inspection
Connecing device has high gas leak phenomenon, and this leakage phenomenon is more serious after thermal shock.The electrode handled by the present invention
Guide post can also eliminate the gas leak phenomenon of electrode guide post even if there is serious internal flaw originally, the electrode after thermal shock
Guide post can still reach good air-tightness effect.
The present invention it is emphasised that the tissue dislocation shaping method of metal material a kind of forming method, and thus intention is brought
Improvement in properties of product, it is not limited to certain certain material, shapes and sizes, as long as with the similar shape of the present invention and doing
Method, it should also be considered as the range that the present invention is included.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (2)
1. a kind of elimination hermetically sealed connector electrode guide post gas leakage method, it is characterised in that method includes：
(1) full annealed technique is homogenized metallographic structure：Electrode guide post is put into atmosphere protection annealing furnace, 700-900 is Celsius
Full annealed 40-60 minutes are spent, hardness reduces 20-40%；
(2) dislocation deformation：After the electrode guide post cooling after annealing, it is placed in folding machine and is folded into mistake among electrode guide post
Position deformation；Tissue dislocation is completed, surface and internal tiny crack, internal capillaries latent defect are eliminated；
(3) complex：The electrode guide post of dislocation deformation is put into punching press complex in punching machine；
(4) end face punching press：Electrode guide post after complex is put into punching machine, end face punching press, secondary plugging plate defects are carried out,
Further strengthen air-tightness, at electrode guide post finished product.
2. a kind of root elimination hermetically sealed connector electrode guide post gas leakage method described in claim 1, it is characterised in that：It is described to incite somebody to action
Electrode guide post is put into atmosphere protection annealing furnace, and 800 degrees Celsius of full annealeds 50 minutes, hardness reduces by 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466232.XA CN107275909B (en) | 2017-06-19 | 2017-06-19 | A kind of elimination hermetically sealed connector electrode guide post gas leakage method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466232.XA CN107275909B (en) | 2017-06-19 | 2017-06-19 | A kind of elimination hermetically sealed connector electrode guide post gas leakage method |
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| Publication Number | Publication Date |
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| CN107275909A CN107275909A (en) | 2017-10-20 |
| CN107275909B true CN107275909B (en) | 2018-11-13 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181724A (en) * | 1996-05-11 | 1998-05-13 | 青山好高 | Welding electrode |
| CN102206739A (en) * | 2011-05-04 | 2011-10-05 | 上海大学 | Dual-refinement treatment process of hot mould steel structure |
| CN102259210A (en) * | 2011-05-25 | 2011-11-30 | 广东工业大学 | Machining device and method for cutting metal strips in burr-free manner |
| CN102769228A (en) * | 2012-08-09 | 2012-11-07 | 孙玉田 | Magnetic socket and plug |
| CN104191313A (en) * | 2014-08-26 | 2014-12-10 | 广东工业大学 | Metal plate circle shear slitting three-way-force measuring device and method thereof |
| CN106404804A (en) * | 2016-08-29 | 2017-02-15 | 安徽云图信息技术有限公司 | Remote sensing data quality inspection subsystem |
-
2017
- 2017-06-19 CN CN201710466232.XA patent/CN107275909B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181724A (en) * | 1996-05-11 | 1998-05-13 | 青山好高 | Welding electrode |
| US6008463A (en) * | 1996-05-11 | 1999-12-28 | Aoyama; Yoshitaka | Resistance welding electrode with guide pin |
| CN102206739A (en) * | 2011-05-04 | 2011-10-05 | 上海大学 | Dual-refinement treatment process of hot mould steel structure |
| CN102259210A (en) * | 2011-05-25 | 2011-11-30 | 广东工业大学 | Machining device and method for cutting metal strips in burr-free manner |
| CN102769228A (en) * | 2012-08-09 | 2012-11-07 | 孙玉田 | Magnetic socket and plug |
| CN104191313A (en) * | 2014-08-26 | 2014-12-10 | 广东工业大学 | Metal plate circle shear slitting three-way-force measuring device and method thereof |
| CN106404804A (en) * | 2016-08-29 | 2017-02-15 | 安徽云图信息技术有限公司 | Remote sensing data quality inspection subsystem |
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| Publication number | Publication date |
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| CN107275909A (en) | 2017-10-20 |
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Effective date of registration: 20220323 Address after: 516000 plant of Sanyou company, Houpo village group, Youth Village Committee, Chenjiang street, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee after: Huizhou multidimensional New Material Co.,Ltd. Address before: 516000 Room 402, Unit 1, Building 5, Phase 2, Xinjiang Road, Huicheng District, Huizhou City, Guangdong Province Patentee before: Wen Weishan |