CN1713317A - surface treatment method of electric contact - Google Patents
surface treatment method of electric contact Download PDFInfo
- Publication number
- CN1713317A CN1713317A CN 200510072418 CN200510072418A CN1713317A CN 1713317 A CN1713317 A CN 1713317A CN 200510072418 CN200510072418 CN 200510072418 CN 200510072418 A CN200510072418 A CN 200510072418A CN 1713317 A CN1713317 A CN 1713317A
- Authority
- CN
- China
- Prior art keywords
- electrical contact
- surface treatment
- oxide powder
- treatment method
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004381 surface treatment Methods 0.000 title claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 20
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000227 grinding Methods 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 3
- 239000003082 abrasive agent Substances 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005554 pickling Methods 0.000 claims description 4
- 238000000498 ball milling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical group O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical group O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000006004 Quartz sand Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910001923 silver oxide Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000010946 fine silver Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910001922 gold oxide Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- GBCAVSYHPPARHX-UHFFFAOYSA-M n'-cyclohexyl-n-[2-(4-methylmorpholin-4-ium-4-yl)ethyl]methanediimine;4-methylbenzenesulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1.C1CCCCC1N=C=NCC[N+]1(C)CCOCC1 GBCAVSYHPPARHX-UHFFFAOYSA-M 0.000 description 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- -1 sodium alkyl sulfonate Chemical class 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
A surface treatment method of electrical contact, put lapping liquid, abradant, electrical contact into lapping machine to grind electrical contact, wash the electrical contact with solution after finishing grinding, in order to wash the abradant attached to electrical contact; the abrasive is iron powder or iron oxide powder. The invention uses iron or iron oxide powder during grinding, even if the iron or iron oxide powder penetrates into the surface layer of the electric contact, the electric contact has electric conductivity, and iron or iron oxide can be removed by acid washing and other methods, so that the contact resistance can be reduced, the welding resistance is improved, and the service life of the electric contact is prolonged.
Description
Technical field
The present invention relates to a kind of surface treatment method of electrical contact.
Background technology
In the prior art, outer surface was jagged after cold-heading or punching press type electrical contact were shaped, sometimes there are wound or cut in the surface, easy to use for the user, will there be circular arc chamfering rivet type electrical contact foot bottom surface, therefore electrical contact also needs to carry out a series of postprocessing working procedures, i.e. surface treatment procedure after being shaped and finishing.To use a certain proportion of abrasive material during surface treatment at present, this abrasive material grinds with electrical contact, lapping liquid, abrasive material is the quartz sand abrasive material, owing to contain more non-conductive materials such as silicon dioxide in the quartz sand abrasive material, some silica dioxide granule had infiltered the electrical contact top layer after grinding was finished, and in subsequent operation, can't remove, therefore can influence the electrical property of electrical contact, make the contact resistance of electrical contact increase.
Summary of the invention
The object of the invention provides a kind of surface treatment method of electrical contact, and the contact resistance of the electrical contact after it is handled is little.
Technical scheme of the present invention is: a kind of surface treatment method of electrical contact, lapping liquid, abrasive material, electrical contact are put into grinder electrical contact is ground, after finishing, grinding electrical contact is cleaned, to clean attached to iron on the electrical contact or ferriferous oxide powder with acid solution; Described abrasive material is iron powder or ferriferous oxide powder.
The present invention compared with prior art has following advantage:
The present invention uses the oxide powder of iron or iron when grinding, even infiltrate the electrical contact top layer, also have electric conductivity, and also can remove the oxide of iron or iron with methods such as pickling, can reduce contact resistance, improve anti-heat sealability, prolong contact life.
Embodiment
A kind of surface treatment method of electrical contact is put into lapping liquid, abrasive material, electrical contact grinder electrical contact is ground, and with solution electrical contact is cleaned after grinding is finished, to clean attached to iron on the electrical contact or ferriferous oxide powder; Described abrasive material is iron powder or ferriferous oxide powder, and described ferriferous oxide powder is ferroferric oxide powder or ferric oxide powder or ferrous oxide powder.
Described electrical contact is cleaned is to carry out pickling, when electrical contact is the homogenous material electrical contact, for example be fine silver, silver and tin oxide, the alloy that closes gold, silver and cadmium oxide of indium oxide, silver-nickel, described solution is that concentration is 10%～30% hydrochloric acid.
When electrical contact be two kinds of materials be composited electrical contact the time, the solution that electrical contact is cleaned comprises the composition of following weight proportion
Sulfuric acid or hydrochloric acid 10%～35%
Hydrogen peroxide 1%～10%
Ethylene glycol 1%～10%
Water all the other.
Operations such as the electrical contact after the pickling can be heat-treated again, polished, drying.
Electrical contact is ground the grinding of branch high speed with described grinder and low speed grinds two stages, water cleaned electrical contact after grinding was finished at a high speed, carrying out low speed again grinds, water cleaned electrical contact after low speed ground and finishes, when described low speed ground, the liquid that lapping liquid and water are formed occupied 40%～90% of ball milling ladle capacity.
Lapping liquid is the mixture of sodium alkyl sulfonate, enuatrol, Tween-40, sodium phosphate, CMC, sodium sulphate.
Claims (8)
1. the surface treatment method of an electrical contact, lapping liquid, abrasive material, electrical contact are put into grinder electrical contact is ground, it is characterized in that: with acid solution electrical contact is cleaned after grinding is finished, to clean attached to iron on the electrical contact or ferriferous oxide powder, described abrasive material is iron powder or ferriferous oxide powder.
2, the surface treatment method of electrical contact according to claim 1 is characterized in that: described ferriferous oxide powder is a ferroferric oxide powder.
3, the surface treatment method of electrical contact according to claim 1 is characterized in that: described ferriferous oxide powder is a ferric oxide powder.
4, the surface treatment method of electrical contact according to claim 1 is characterized in that: described ferriferous oxide powder is the ferrous oxide powder.
5, the surface treatment method of electrical contact according to claim 1 is characterized in that: described electrical contact is cleaned is to carry out pickling, and when electrical contact was the homogenous material electrical contact, described solution was that concentration is 10%～30% hydrochloric acid.
6, the surface treatment method of electrical contact according to claim 1 is characterized in that: when electrical contact was compound electrical contact, the solution that electrical contact is cleaned comprised the composition of following weight proportion
Sulfuric acid or hydrochloric acid 10%～35%
Hydrogen peroxide 1%～10%
Ethylene glycol 1～10%
Water all the other.
7, the surface treatment method of electrical contact according to claim 1, it is characterized in that: electrical contact is ground the grinding of branch high speed with described grinder and low speed grinds two stages, water cleaned electrical contact after grinding was finished at a high speed, carry out low speed again and grind, water cleaned electrical contact after low speed ground and finishes.
8, the surface treatment method of electrical contact according to claim 1 is characterized in that: during described low speed ball milling, the liquid that lapping liquid and water are formed occupies 40%～90% of ball milling ladle capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100724184A CN100386832C (en) | 2004-06-22 | 2005-05-12 | surface treatment method of electric contact |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410041079 | 2004-06-22 | ||
| CN200410041079.9 | 2004-06-22 | ||
| CNB2005100724184A CN100386832C (en) | 2004-06-22 | 2005-05-12 | surface treatment method of electric contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1713317A true CN1713317A (en) | 2005-12-28 |
| CN100386832C CN100386832C (en) | 2008-05-07 |
Family
ID=35718880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100724184A Expired - Fee Related CN100386832C (en) | 2004-06-22 | 2005-05-12 | surface treatment method of electric contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100386832C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096277A1 (en) * | 2013-12-27 | 2015-07-02 | 福达合金材料股份有限公司 | Mixed powder for rapidly removing forged burrs of rivet electrical contact, and using method therefor |
| CN107378741A (en) * | 2017-07-07 | 2017-11-24 | 福达合金材料股份有限公司 | Surface treatment method, abrasive material and the abrasive material preparation method of soil for electrical contact |
| CN111037134A (en) * | 2019-12-04 | 2020-04-21 | 福达合金材料股份有限公司 | Method for reducing contact resistance of welding electric contact assembly |
| CN113369498A (en) * | 2021-08-10 | 2021-09-10 | 陕西斯瑞新材料股份有限公司 | Surface post-treatment method for 3D printing copper alloy contact material |
| CN115142065A (en) * | 2022-06-09 | 2022-10-04 | 宁波顺成电器有限公司 | Surface treatment method for reducing contact resistance of rivet type contact surface |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3909437A (en) * | 1973-01-18 | 1975-09-30 | Dow Chemical Co | Noncorrosive acid, solvent and nonionic surfactant composition |
| JP2003205450A (en) * | 2002-01-10 | 2003-07-22 | Toshiba Eng Co Ltd | Grinding machining device |
-
2005
- 2005-05-12 CN CNB2005100724184A patent/CN100386832C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096277A1 (en) * | 2013-12-27 | 2015-07-02 | 福达合金材料股份有限公司 | Mixed powder for rapidly removing forged burrs of rivet electrical contact, and using method therefor |
| CN107378741A (en) * | 2017-07-07 | 2017-11-24 | 福达合金材料股份有限公司 | Surface treatment method, abrasive material and the abrasive material preparation method of soil for electrical contact |
| CN111037134A (en) * | 2019-12-04 | 2020-04-21 | 福达合金材料股份有限公司 | Method for reducing contact resistance of welding electric contact assembly |
| CN113369498A (en) * | 2021-08-10 | 2021-09-10 | 陕西斯瑞新材料股份有限公司 | Surface post-treatment method for 3D printing copper alloy contact material |
| CN115142065A (en) * | 2022-06-09 | 2022-10-04 | 宁波顺成电器有限公司 | Surface treatment method for reducing contact resistance of rivet type contact surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100386832C (en) | 2008-05-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20180512 |
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| CF01 | Termination of patent right due to non-payment of annual fee |