CN1295119A - Lubricant grease for electric contact - Google Patents
Lubricant grease for electric contact Download PDFInfo
- Publication number
- CN1295119A CN1295119A CN 99122231 CN99122231A CN1295119A CN 1295119 A CN1295119 A CN 1295119A CN 99122231 CN99122231 CN 99122231 CN 99122231 A CN99122231 A CN 99122231A CN 1295119 A CN1295119 A CN 1295119A
- Authority
- CN
- China
- Prior art keywords
- lubricating grease
- heavy
- described lubricating
- agent
- weight
- 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
- 239000004519 grease Substances 0.000 title claims abstract description 36
- 239000000314 lubricant Substances 0.000 title description 2
- 230000001050 lubricating effect Effects 0.000 claims abstract description 34
- 239000002199 base oil Substances 0.000 claims abstract description 11
- 239000006258 conductive agent Substances 0.000 claims abstract description 10
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims abstract description 6
- RQLWXPCFUSHLNV-UHFFFAOYSA-N [Cr].[Ca] Chemical compound [Cr].[Ca] RQLWXPCFUSHLNV-UHFFFAOYSA-N 0.000 claims abstract description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000001412 amines Chemical class 0.000 claims abstract description 5
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 5
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 4
- 150000002148 esters Chemical class 0.000 claims abstract description 4
- 239000000344 soap Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 8
- 150000004867 thiadiazoles Chemical class 0.000 claims description 8
- 150000003852 triazoles Chemical class 0.000 claims description 8
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 7
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 7
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 claims description 7
- 150000002632 lipids Chemical class 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 6
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 claims description 6
- WJUMWVJBOZKPPU-UHFFFAOYSA-N 2,3-bis(6-methylheptyl)-N-phenylaniline Chemical compound C(CCCCC(C)C)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCC(C)C WJUMWVJBOZKPPU-UHFFFAOYSA-N 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N pentanoic acid group Chemical group C(CCCC)(=O)O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 3
- IHLDEDLAZNFOJB-UHFFFAOYSA-N 6-octoxy-6-oxohexanoic acid Chemical compound CCCCCCCCOC(=O)CCCCC(O)=O IHLDEDLAZNFOJB-UHFFFAOYSA-N 0.000 claims description 2
- WHXSMMKQMYFTQS-BKFZFHPZSA-N lithium-12 Chemical compound [12Li] WHXSMMKQMYFTQS-BKFZFHPZSA-N 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 2
- 229930195729 fatty acid Natural products 0.000 abstract 2
- 239000000194 fatty acid Substances 0.000 abstract 2
- 150000004665 fatty acids Chemical class 0.000 abstract 2
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 239000013556 antirust agent Substances 0.000 abstract 1
- 239000002562 thickening agent Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 125000003473 lipid group Chemical group 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
本发明提供的润滑脂含有如下组分:以基础油重量为基准,5～20重%的脂肪酸锂皂稠化剂,0.1～2.0重%的胺类抗氧剂,0.05～2重%的唑类防锈剂,0.01～0.08重%的脂肪酸铬钙盐导电剂,余量为酯类基础油。本发明提供的润滑脂可有效地控制润滑脂的电阻率稳定在电触点脂规格所要求的108～1010Ω·cm之间,不仅改善了电触点的接触状况,而且有耐电弧的作用,延长了电触点的使用寿命。该润滑脂适用温度范围－50～120℃,可用于旋转开关和滑移开关。The lubricating grease provided by the invention contains the following components: based on the weight of the base oil, 5-20% by weight of fatty acid lithium soap thickener, 0.1-2.0% by weight of amine antioxidant, and 0.05-2% by weight of azole Anti-rust agent, 0.01-0.08% by weight of fatty acid chromium calcium salt conductive agent, and the balance of ester base oil. The lubricating grease provided by the invention can effectively control the resistivity of the lubricating grease to be stable between 10 8 and 10 10 Ω·cm required by the specifications of the electrical contact grease, which not only improves the contact condition of the electrical contacts, but also has arc resistance. The role of extending the service life of electrical contacts. The lubricating grease is suitable for the temperature range of -50 ~ 120 ℃, and can be used for rotary switches and slide switches.
Description
The invention belongs to lubricant, specifically a kind of lubricating grease that is used for the electrical contact maintenance and uses.
Electrical contact often prolongs in time and produces corrosion and oxidation in secular use, influences the quality and the work-ing life of electrical contact.Electrical contact lubricating grease has the antioxygen preservative activity, can ensure that the electrical contact contact is good.
The patent documentation of relevant electrical contact has US5242611, US5282986 etc.Consisting of of the disclosed lubricating grease of US5242611 wherein: 52.1～52.4% refinery coke, 47.2～47.64% lithium saponify, 0.004～0.7% transmission fluid.
Consisting of of the disclosed lubricating grease of US5282986, (1) synthetic hydrocarbon oil; (2) 0.2～3.0% the inorganics that is selected from zinc oxide, ferric oxide etc.; (3) 3～20% 12-hydroxy lithium stearate; (4) 0.1～5.0% phenol types or amine type oxidation inhibitor.
Above-mentioned document is not controlled the resistivity of lubricating grease, and the electrical property of electrical contact fat is extremely important.
The object of the present invention is to provide a kind of have suitable resistivity and favorable protection ability, can satisfy the lubricating grease of electrical contact service requirements.
Lubricating grease provided by the invention has following composition, with base oil weight is benchmark, the lipid acid lithium soap viscosifying agent of 5～20 heavy %, 0.1 the amine antioxidants of～2.0 heavy %, 0.05 the azole rust-preventive agent of～2.0 heavy %, 0.01 the lipid acid chromium calcium salt conductive agent of～0.1 heavy %, surplus is an ester class base oil.
Described base oil is the ester class oil with good low-temperature performance, can be dioctyl sebacate, Octyl adipate, dioctyl phthalate (DOP), or above-mentioned any two kinds mixture.Preferred dioctyl sebacate.
Described viscosifying agent is the lipid acid lithium soap, as the 12-hydroxy lithium stearate, and lithium stearate, the mixture of lithium stearate and 12-hydroxy lithium stearate, preferred 12-hydroxy lithium stearate.The viscosifying agent consumption is 5～20 heavy % of base oil, preferred 7～15 heavy %.
Described oxidation inhibitor is amine antioxidants, and is right as pentanoic, to di-iso-octyldiphenylamine, and αNai An etc., preferably right, to di-iso-octyldiphenylamine.The oxidation inhibitor consumption is 0.1～2.0 heavy %, preferred 0.3～0.6 heavy %.
Described rust-preventive agent is selected from one of 124 Triazole, thiadiazoles and their derivative, or the mixture of the two, the mixture of the arbitrary proportion of preferred 124 Triazole and thiadiazoles, more preferably the two mixture of 2～10: 1.The content of rust-preventive agent can be 0.05～2 heavy %, preferred 0.1～1 heavy %.
Described conductive agent is a lipid acid chromium calcium salt, and this conductive agent has good molecular polarity, is a kind of static inhibitor commonly used in the oil fuel.The present invention finds that it can also reduce lubricating grease resistivity, makes electrical contact not by corrosion and oxidation, ensures that the electrical contact contact is good, and has certain conductive effect, can tolerate electric arc to a certain degree.Described conductive agent consumption can be 0.01～0.1 heavy %, preferred 0.02～0.06 heavy %.
Can also optionally add tackifier in the lubricating grease provided by the invention, described tackifier are ethylene-propylene copolymer, and molecular weight is 30000～100000, and weaker concn is generally 5～12 heavy %, in the multipolymer consumption is 0.05～0.3 heavy %, preferred 0.08～0.2 heavy %.
Lubricating grease provided by the invention is to make the preparation of fat method routinely.Promptly earlier viscosifying agent and part base oil are mixed, be warmed up to 210 ℃, stop heating, add the surplus base oil.Add various additives in the temperature-fall period, stirring gets final product.
Lubricating grease provided by the invention, owing to added a kind of conductive agent, the resistivity of sight-feed lubricator fat is stabilized in electrical contact fat specification desired 10 effectively
8～10
10Between the Ω cm, not only improve the contact condition of electrical contact, and the effect of anti-electric arc has been arranged, prolonged the work-ing life of electrical contact.This lubricating grease Applicable temperature scope-50～120 ℃ can be used for turn switch and slippage switch.
The invention will be further described below by example.
Example 1
227g dioctyl sebacate and 36g12-hydroxy lithium stearate are mixed in cup, heating while stirring, temperature reaches 210 ℃, stop heating, add the 113g dioctyl sebacate, be cooled to 120 ℃, it is right to add, and to di-iso-octyldiphenylamine 1.2g, concentration is the ethylene-propylene copolymer 6g of 8.5 heavy %, 124 Triazole 2g, thiadiazoles derivative 0.4g, lipid acid chromium calcium salt (T1501, Yanshan Mountain refinery product) 0.1g, stir well the back and grind three times, obtain the lubricating grease sample.Physicochemical property sees Table 1.
Example 2
227g dioctyl sebacate and 48g lithium stearate are mixed in cup, heating while stirring, temperature reaches 210 ℃, stops heating, add the 113g dioctyl sebacate, be cooled to 120 ℃, add pentanoic 2g, 124 Triazole 2g, thiadiazoles derivative 0.4g, lipid acid chromium calcium salt 0.1g stirs well the back and grinds three times, obtains the lubricating grease sample.Physicochemical property sees Table 1.
Example 3
227g dioctyl phthalate (DOP) and 22.4g12-hydroxy lithium stearate and 5.6g lithium stearate are mixed in cup, heating while stirring, temperature reaches 210 ℃, stop heating, add 113g and face dioctyl phthalate, be cooled to 120 ℃, add alpha-naphthylamine 2g, concentration is the ethylene-propylene copolymer 4g of 8.5 heavy %, 124 Triazole 1.5g, thiadiazoles derivative 0.2g, conductive agent 0.16g, stir well the back and grind three times, obtain the lubricating grease sample.Physicochemical property sees Table 1.
Example 4
Operation does not just add thiadiazoles derivative with example 2, and physicochemical property sees Table 1.
Example 5
Operation does not just add 124 Triazole with example 2, and physicochemical property sees Table 1.
Comparative Examples
Operation does not just add conductive agent with example 1, and physicochemical property sees Table 1.Table 1
| Lubricating grease | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative Examples | Test method |
| Cone penetration, 0.1mm | ?278 | ?266 | ?289 | ?268 | ?272 | ?285 | ?GB/T269 |
| Dropping point, ℃, | ?192 | ?188 | ?189 | ?185 | ?190 | ?190 | ?GB/T4929 |
| Stencil oil-dividing, and % (100 ℃, 24h) | ?0.12 | ?0.21 | ?0.15 | ?0.24 | ?0.26 | ?0.17 | ?SH/T0324 |
| Corrosion (T 2Copper, 100 ℃, 24h) | Qualified | Qualified | Qualified | Qualified | Qualified | Qualified | GB/T7326 |
| Chemical stability, and Mpa (99 ℃, 100h) | 0.005 | ????/ | ????/ | ????/ | ????/ | ?0.007 | ?SH/T0325 |
| Resistivity, Ω cm * 10 8 | ????48 | ????56 | ????8.9 | ????77 | ????69 | ????260 | ?GB/T7539 |
As can be seen from Table 1, lubricating grease provided by the invention has suitable resistivity and favorable protection.
Claims (11)
1. lubricating grease that is used for electrical contact, contain following component: with base oil weight is benchmark, the lipid acid lithium soap viscosifying agent of 5～20 heavy %, 0.1 the amine antioxidants of～2.0 heavy %, 0.1 the azole rust-preventive agent of～1.0 heavy %, 0.01 the lipid acid chromium calcium salt conductive agent of～0.1 heavy %, surplus is an ester class base oil.
2. according to the described lubricating grease of claim 1, wherein base oil is selected from dioctyl sebacate, Octyl adipate, dioctyl phthalate (DOP), or above-mentioned any two kinds mixture.
3. according to the described lubricating grease of claim 1, wherein viscosifying agent is selected from the 12-hydroxy lithium stearate, the mixture of lithium stearate or lithium stearate and 12-hydroxy lithium stearate.
4. according to claim 1 or 3 described lubricating grease, wherein the viscosifying agent consumption is 7～15 heavy %.
5. according to the described lubricating grease of claim 1, wherein oxidation inhibitor is selected from pentanoic, and is right, to di-iso-octyldiphenylamine or αNai An.
6. according to claim 1 or 5 described lubricating grease, wherein the oxidation inhibitor consumption is 0.3～0.6 heavy %.
7. according to the described lubricating grease of claim 1, wherein rust-preventive agent is selected from one of 124 Triazole, thiadiazoles and their derivative, or the mixture of the two.
8. according to claim 1 or 7 described lubricating grease, wherein rust-preventive agent is the mixture of 124 Triazole and thiadiazoles 2～10: 1.
9. according to claim 1 or 7 described lubricating grease, wherein the content of rust-preventive agent is 0.1～1.0 heavy %.
10. according to the described lubricating grease of claim 1, wherein the consumption of conductive agent is 0.02～0.06 heavy %.
11. according to the described lubricating grease of claim 1, also contain tackifier in the lubricating grease provided by the invention, described tackifier are the ethylene-propylene copolymer of molecular weight 30000～100000, consumption is 0.05～0.3 heavy %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99122231A CN1100130C (en) | 1999-11-04 | 1999-11-04 | A grease for electrical contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99122231A CN1100130C (en) | 1999-11-04 | 1999-11-04 | A grease for electrical contacts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1295119A true CN1295119A (en) | 2001-05-16 |
| CN1100130C CN1100130C (en) | 2003-01-29 |
Family
ID=5282378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99122231A Expired - Lifetime CN1100130C (en) | 1999-11-04 | 1999-11-04 | A grease for electrical contacts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100130C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332007C (en) * | 2005-06-29 | 2007-08-15 | 吉林正基科技开发有限责任公司 | Conducting polymer high-temperature lubricating grease and its preparing method |
| CN101240214B (en) * | 2008-03-12 | 2010-07-21 | 益田润石（北京）化工有限公司 | Electric contact point lubricating protective agent |
| CN102517136A (en) * | 2011-12-22 | 2012-06-27 | 深圳市优宝惠新材料科技有限公司 | Electrical contact lubricant composition suitable for high voltage and heavy current |
| CN102604715A (en) * | 2012-02-09 | 2012-07-25 | 中山大学 | Composite lithium based lubricating grease composition and its preparation method |
| CN102618359A (en) * | 2012-02-13 | 2012-08-01 | 中山大学 | Silicon-based lubricating grease composition for electrical contact, and preparation method thereof |
| CN103146466A (en) * | 2013-03-17 | 2013-06-12 | 中山大学惠州研究院 | Composite lithium-based lubricating grease composition and preparation method thereof |
| CN105296116A (en) * | 2015-11-23 | 2016-02-03 | 广西大学 | Environment-friendly castor-oil plant based conductive grease composition |
| CN105482872A (en) * | 2015-07-17 | 2016-04-13 | 路伯润滑油（苏州）有限公司 | Grease for rotary plugs and preparation method thereof |
| CN105602678A (en) * | 2015-11-23 | 2016-05-25 | 广西大学 | Castor oil-based grease composition for electric contact |
| CN105733788A (en) * | 2016-04-26 | 2016-07-06 | 苏州思创源博电子科技有限公司 | Preparation method of environment-friendly electric contact lubricating oil |
| CN108774567A (en) * | 2018-03-30 | 2018-11-09 | 深圳市合诚润滑材料有限公司 | A kind of vehicle switch contact lubricating grease and preparation method thereof |
| CN113491039A (en) * | 2019-06-05 | 2021-10-08 | 埃尔尼国际股份有限公司 | Electrical contact elements for high operating voltages |
| CN114921281A (en) * | 2022-05-02 | 2022-08-19 | 杭州富阳金容润滑油脂有限公司 | Novel lubricating grease and production process thereof |
| CN116286143A (en) * | 2023-03-22 | 2023-06-23 | 中国科学院兰州化学物理研究所 | Lubricating additive, conductive grease and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5242611A (en) * | 1991-01-14 | 1993-09-07 | Griffaw Norman E | Electrical contact protective lubricant |
| JP2795767B2 (en) * | 1991-12-27 | 1998-09-10 | 株式会社東海理化電機製作所 | Grease for sliding contacts |
-
1999
- 1999-11-04 CN CN99122231A patent/CN1100130C/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332007C (en) * | 2005-06-29 | 2007-08-15 | 吉林正基科技开发有限责任公司 | Conducting polymer high-temperature lubricating grease and its preparing method |
| CN101240214B (en) * | 2008-03-12 | 2010-07-21 | 益田润石（北京）化工有限公司 | Electric contact point lubricating protective agent |
| CN102517136A (en) * | 2011-12-22 | 2012-06-27 | 深圳市优宝惠新材料科技有限公司 | Electrical contact lubricant composition suitable for high voltage and heavy current |
| CN102517136B (en) * | 2011-12-22 | 2013-08-28 | 深圳市优宝惠新材料科技有限公司 | Electrical contact lubricant composition suitable for high voltage and heavy current |
| CN102604715A (en) * | 2012-02-09 | 2012-07-25 | 中山大学 | Composite lithium based lubricating grease composition and its preparation method |
| CN102618359A (en) * | 2012-02-13 | 2012-08-01 | 中山大学 | Silicon-based lubricating grease composition for electrical contact, and preparation method thereof |
| CN103146466A (en) * | 2013-03-17 | 2013-06-12 | 中山大学惠州研究院 | Composite lithium-based lubricating grease composition and preparation method thereof |
| CN105482872A (en) * | 2015-07-17 | 2016-04-13 | 路伯润滑油（苏州）有限公司 | Grease for rotary plugs and preparation method thereof |
| CN105482872B (en) * | 2015-07-17 | 2018-12-18 | 路伯润滑油（苏州）有限公司 | Rotary connector lubricating grease and preparation method thereof |
| CN105296116A (en) * | 2015-11-23 | 2016-02-03 | 广西大学 | Environment-friendly castor-oil plant based conductive grease composition |
| CN105602678A (en) * | 2015-11-23 | 2016-05-25 | 广西大学 | Castor oil-based grease composition for electric contact |
| CN105733788A (en) * | 2016-04-26 | 2016-07-06 | 苏州思创源博电子科技有限公司 | Preparation method of environment-friendly electric contact lubricating oil |
| CN108774567A (en) * | 2018-03-30 | 2018-11-09 | 深圳市合诚润滑材料有限公司 | A kind of vehicle switch contact lubricating grease and preparation method thereof |
| CN113491039A (en) * | 2019-06-05 | 2021-10-08 | 埃尔尼国际股份有限公司 | Electrical contact elements for high operating voltages |
| CN114921281A (en) * | 2022-05-02 | 2022-08-19 | 杭州富阳金容润滑油脂有限公司 | Novel lubricating grease and production process thereof |
| CN116286143A (en) * | 2023-03-22 | 2023-06-23 | 中国科学院兰州化学物理研究所 | Lubricating additive, conductive grease and preparation method thereof |
| CN116286143B (en) * | 2023-03-22 | 2025-06-06 | 中国科学院兰州化学物理研究所 | Lubricating additive, conductive grease and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1100130C (en) | 2003-01-29 |
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