CN104911574A - Copper wire braided wire passivation agent - Google Patents
Copper wire braided wire passivation agent Download PDFInfo
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- CN104911574A CN104911574A CN201510206820.0A CN201510206820A CN104911574A CN 104911574 A CN104911574 A CN 104911574A CN 201510206820 A CN201510206820 A CN 201510206820A CN 104911574 A CN104911574 A CN 104911574A
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- CN
- China
- Prior art keywords
- copper
- wire
- phosphoric acid
- passivator
- copper wire
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000002161 passivation Methods 0.000 title abstract description 4
- 239000003795 chemical substances by application Substances 0.000 title abstract 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims abstract description 18
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 18
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical class [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000467 phytic acid Substances 0.000 claims abstract description 18
- 229940068041 phytic acid Drugs 0.000 claims abstract description 18
- 235000002949 phytic acid Nutrition 0.000 claims abstract description 18
- 150000003608 titanium Chemical class 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 10
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 14
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 12
- 150000003016 phosphoric acids Chemical class 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 11
- -1 phenolic ether phosphoric acid ester Chemical class 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 7
- 229940093916 potassium phosphate Drugs 0.000 claims description 7
- 235000011009 potassium phosphates Nutrition 0.000 claims description 7
- 239000001488 sodium phosphate Substances 0.000 claims description 7
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 7
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical group [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- MODMKKOKHKJFHJ-UHFFFAOYSA-N magnesium;dioxido(dioxo)molybdenum Chemical compound [Mg+2].[O-][Mo]([O-])(=O)=O MODMKKOKHKJFHJ-UHFFFAOYSA-N 0.000 claims description 6
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical group [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 6
- 229910000349 titanium oxysulfate Inorganic materials 0.000 claims description 6
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical group Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 abstract description 9
- 238000007254 oxidation reaction Methods 0.000 abstract description 9
- 238000000137 annealing Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000009954 braiding Methods 0.000 abstract description 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 238000002845 discoloration Methods 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000005494 tarnishing Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- NWFNSTOSIVLCJA-UHFFFAOYSA-L copper;diacetate;hydrate Chemical compound O.[Cu+2].CC([O-])=O.CC([O-])=O NWFNSTOSIVLCJA-UHFFFAOYSA-L 0.000 description 1
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention provides a copper wire braided wire passivation agent including the following chemical components by weight 15-25% of a phosphate salt, 22-30% of a molybdate salt, and 10-20% of phosphate, 2-20% of a titanium salt, 3-10% of fluotitanic acid, 1-10% of citric acid, 10-20% of phytic acid and balance of water. The copper wire braided wire passivation agent is non-toxic and environmentally-friendly, after copper wire annealing cooling, a layer of uniform, dense and hard-to-fall off protective film is produced on the copper wire surface, so that the copper wire has good capability of preventing discoloration and oxidation resistance, storage time limit and service life of the copper wire braided wire obtained by copper wire braiding can be effectively improved, and the production cost can be reduced.
Description
Technical field
The invention belongs to electric installation, field protected by electronic component connection line, particularly, relate to a kind of proof copper-wire braided line passivator.
Background technology
In the industry of copper wire processing now, the share of the market share of copper material processing is increasing, and particularly in plating, spraying, cable, wiring board, CNC, mould, punching press five metals, the industries such as powder metallurgy, the proportion occupied is year by year in the trend risen.
Going from strength to strength of industry, the quality requirements of product is also constantly improved, but in the process of Copper fabrication, copper and copper alloy are after processing cleaning, occur that the problem be oxidized is a disadvantage in the industry always, especially for copper wire, copper litz wire and electrician's copper soft whipping wire that electric installation, electronic component connect, after making copper wire, surface is very easily oxidized, occur that the situation of oxidation is very general, often within after cleaning, drying several hours, occur oxidation stain, can verdigris be generated under normal temperature oxidation, both ventilation breather is green; Maybe may be oxidized to Red copper oxide, for brick-red, after a few days, play oxidation sludge.The copper wire that copper material is originally more valuable, adds now expensive tooling cost and labour cost, and the product allowing many producers look at a pile oxidation is worried, and the product how processing oxidation has been delivered goods into the anxious problem that must solve of many producers.
Summary of the invention
For solving above-mentioned Problems existing; the object of the present invention is to provide a kind of proof copper-wire braided line passivator; nontoxic, environmental protection; after copper wire annealing cooling; can produce on copper wire surface one deck evenly, fine and close and be difficult to the protective membrane that comes off; make copper wire have good Anti-tarnishing ability, resistance of oxidation, effectively promote storage life and the work-ing life of the proof copper-wire braided line after proof copper-wire braided, reduce production cost.
For achieving the above object, technical scheme of the present invention is:
A kind of proof copper-wire braided line passivator, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15 ~ 25%, molybdate: 22 ~ 30%, phosphoric acid ester: 10 ~ 20%, titanium salt: 2 ~ 20%, hydrofluotitanic acid: 3 ~ 10%, citric acid: 1 ~ 10%, phytic acid: 10 ~ 20%, all the other are water.
Preferably, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15 ~ 20%, molybdate: 25 ~ 28%, phosphoric acid ester: 15 ~ 17%, titanium salt: 5 ~ 8%, hydrofluotitanic acid: 3 ~ 8%, citric acid: 4 ~ 7%, phytic acid: 15 ~ 18%, and all the other are water.
Further, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15%, molybdate: 27%, phosphoric acid ester: 16%, titanium salt: 5%, hydrofluotitanic acid: 6%, citric acid: 5%, phytic acid: 17%, and all the other are water.
And described phosphoric acid salt is sodium phosphate or potassiumphosphate.
Separately, described molybdate is Sodium orthomolybdate, potassium molybdate or magnesium molybdate.
Separately have, described phosphoric acid ester is phenolic ether phosphoric acid ester.
Again, described titanium salt is titanium tetrachloride, tetrabutyl titanate or titanyl sulfate.
Further, described water is deionized water or pure water.
And the stranded copper wire that described copper litz wire is 0.03 ~ 0.05mm by diameter weaves and forms.
Beneficial effect of the present invention is:
Copper wire and described passivator, at the insoluble and sull of densification of Surface Creation, thus prevent the anode dissolution of copper wire or promote the passivation of copper wire, thus suppressing the corrosion of copper wire.Copper wire and passivator can generate the salt of indissoluble, thus copper wire and corrosive medium are isolated, and avoid corrosion.Nontoxic, environmental protection; after copper wire annealing cooling; can produce on copper wire surface one deck evenly, fine and close and be difficult to the protective membrane that comes off; copper wire is made to have good Anti-tarnishing ability, resistance of oxidation; the storage life of the proof copper-wire braided line after effective lifting proof copper-wire braided and work-ing life, reduce production cost.
Embodiment
Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.The implementation condition adopted in embodiment can be for further adjustments according to the condition of producer, and unaccounted implementation condition is generally conventional laboratory conditions.
A kind of proof copper-wire braided line passivator provided by the present invention, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15 ~ 25%, molybdate: 22 ~ 30%, phosphoric acid ester: 10 ~ 20%, titanium salt: 2 ~ 20%, hydrofluotitanic acid: 3 ~ 10%, citric acid: 1 ~ 10%, phytic acid: 10 ~ 20%, all the other are water.
Preferably, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15 ~ 20%, molybdate: 25 ~ 28%, phosphoric acid ester: 15 ~ 17%, titanium salt: 5 ~ 8%, hydrofluotitanic acid: 3 ~ 8%, citric acid: 4 ~ 7%, phytic acid: 15 ~ 18%, and all the other are water.
Further, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15%, molybdate: 27%, phosphoric acid ester: 16%, titanium salt: 5%, hydrofluotitanic acid: 6%, citric acid: 5%, phytic acid: 17%, and all the other are water.
And described phosphoric acid salt is sodium phosphate or potassiumphosphate.
Separately, described molybdate is Sodium orthomolybdate, potassium molybdate or magnesium molybdate.
Separately have, described phosphoric acid ester is phenolic ether phosphoric acid ester.
Again, described titanium salt is titanium tetrachloride, tetrabutyl titanate or titanyl sulfate.
Further, described water is deionized water or pure water.
And the stranded copper wire that described copper litz wire is 0.03 ~ 0.05mm by diameter weaves and forms.
Embodiment 1
15wt% sodium phosphate, 27wt% Sodium orthomolybdate, 16wt% phenolic ether phosphoric acid ester, 5wt% titanium tetrachloride, 6wt% hydrofluotitanic acid, 5wt% citric acid, 17wt% phytic acid, all the other are pure water.
Embodiment 2
20wt% potassiumphosphate, 30wt% magnesium molybdate, 10wt% phenolic ether phosphoric acid ester, 10wt% titanyl sulfate, 5wt% hydrofluotitanic acid, 1wt% citric acid, 10wt% phytic acid, all the other are pure water.
Embodiment 3
15wt% potassiumphosphate, 22wt% Sodium orthomolybdate, 10wt% phenolic ether phosphoric acid ester, 4wt% tetrabutyl titanate, 3wt% hydrofluotitanic acid, 5wt% citric acid, 15wt% phytic acid, all the other are deionized water.
Embodiment 4
25wt% sodium phosphate, 24wt% potassium molybdate, 15wt% phenolic ether phosphoric acid ester, 5wt% titanyl sulfate, 6wt% hydrofluotitanic acid, 5wt% citric acid, 10wt% phytic acid, all the other are pure water.
Embodiment 5
16wt% potassiumphosphate, 26wt% magnesium molybdate, 20wt% phenolic ether phosphoric acid ester, 4wt% titanium tetrachloride, 3wt% hydrofluotitanic acid, 5wt% citric acid, 15wt% phytic acid, all the other are deionized water.
Embodiment 6
21wt% sodium phosphate, 24wt% Sodium orthomolybdate, 12wt% phenolic ether phosphoric acid ester, 7wt% tetrabutyl titanate, 8wt% hydrofluotitanic acid, 4wt% citric acid, 10wt% phytic acid, all the other are pure water.
Embodiment 7
16wt% sodium phosphate, 23wt% magnesium molybdate, 15wt% phenolic ether phosphoric acid ester, 15wt% titanium tetrachloride, 4wt% hydrofluotitanic acid, 6wt% citric acid, 11wt% phytic acid, all the other are pure water.
Embodiment 8
21wt% potassiumphosphate, 22wt% potassium molybdate, 15wt% phenolic ether phosphoric acid ester, 4wt% titanyl sulfate, 6wt% hydrofluotitanic acid, 3wt% citric acid, 15wt% phytic acid, all the other are deionized water.
The preparation method of described proof copper-wire braided line passivator is as follows:
Carry out according to weight percent described in embodiment 1 ~ 8 mixing of weighing respectively, put into reactor, stir 10 ~ 30 minutes, described proof copper-wire braided line passivator can be obtained.
The using method of proof copper-wire braided line passivator provided by the present invention in copper wire annealing process is as follows:
By diameter be 0.03 ~ 0.05mm copper wire through constant speed wheel constant speed after send in baking oven, the vapor baking copper wire of 400 DEG C-500 DEG C is adopted in baking oven, copper wire after roasting enters in water tank, described proof copper-wire braided line passivator (usage ratio: 1:800 is doubly watered use) is added in water tank, the antioxidation treatment to described copper wire can be realized, treatment time 5 ~ 60s, temperature 25 ~ 50 DEG C, the copper wire after process can obtain described proof copper-wire braided line through braiding.
Use the proof copper-wire braided line that the proof copper-wire braided after passivator process provided by the present invention becomes, preservation time average can reach 3 years.
It should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to the technical scheme of invention or equivalent replacement, and not depart from the scope of technical solution of the present invention, it all should be encompassed in right of the present invention.
Claims (9)
1. a proof copper-wire braided line passivator, it is characterized in that, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15 ~ 25%, molybdate: 22 ~ 30%, phosphoric acid ester: 10 ~ 20%, titanium salt: 2 ~ 20%, hydrofluotitanic acid: 3 ~ 10%, citric acid: 1 ~ 10%, phytic acid: 10 ~ 20%, all the other are water.
2. proof copper-wire braided line passivator according to claim 1, it is characterized in that, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15 ~ 20%, molybdate: 25 ~ 28%, phosphoric acid ester: 15 ~ 17%, titanium salt: 5 ~ 8%, hydrofluotitanic acid: 3 ~ 8%, citric acid: 4 ~ 7%, phytic acid: 15 ~ 18%, all the other are water.
3. proof copper-wire braided line passivator according to claim 1, it is characterized in that, described passivator comprises the chemical composition of following weight percent: phosphoric acid salt: 15%, molybdate: 27%, phosphoric acid ester: 16%, titanium salt: 5%, hydrofluotitanic acid: 6%, citric acid: 5%, phytic acid: 17%, all the other are water.
4. the proof copper-wire braided line passivator according to claim 1 or 2 or 3, is characterized in that, described phosphoric acid salt is sodium phosphate or potassiumphosphate.
5. the proof copper-wire braided line passivator according to claim 1 or 2 or 3, is characterized in that, described molybdate is Sodium orthomolybdate, potassium molybdate or magnesium molybdate.
6. the proof copper-wire braided line passivator according to claim 1 or 2 or 3, is characterized in that, described phosphoric acid ester is phenolic ether phosphoric acid ester.
7. the proof copper-wire braided line passivator according to claim 1 or 2 or 3, is characterized in that, described titanium salt is titanium tetrachloride, tetrabutyl titanate or titanyl sulfate.
8. the proof copper-wire braided line passivator according to claim 1 or 2 or 3, is characterized in that, described water is deionized water or pure water.
9. the proof copper-wire braided line passivator according to claim 1 or 2 or 3, is characterized in that, the stranded copper wire that described copper litz wire is 0.03 ~ 0.05mm by diameter weaves and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206820.0A CN104911574A (en) | 2015-04-28 | 2015-04-28 | Copper wire braided wire passivation agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206820.0A CN104911574A (en) | 2015-04-28 | 2015-04-28 | Copper wire braided wire passivation agent |
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| Publication Number | Publication Date |
|---|---|
| CN104911574A true CN104911574A (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510206820.0A Pending CN104911574A (en) | 2015-04-28 | 2015-04-28 | Copper wire braided wire passivation agent |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385098A (en) * | 2018-05-09 | 2018-08-10 | 广州斯特福材料科技有限公司 | Stainless steel environmentally friendly passivating solution and its application method |
| CN110578107A (en) * | 2019-09-30 | 2019-12-17 | 上海强安线缆材料有限公司 | processing method of antioxidant copper wire |
| CN115896658A (en) * | 2022-11-28 | 2023-04-04 | 太仓市林源电线电缆有限公司 | Surface oxidation resistance treatment method for soft copper braided wire |
| CN116631708A (en) * | 2023-06-16 | 2023-08-22 | 深圳市龙辉电业有限公司 | An anti-oxidation and corrosion-resistant copper braided wire and its manufacturing method |
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| JP2011241482A (en) * | 2004-10-26 | 2011-12-01 | Nippon Parkerizing Co Ltd | Surface treatment agent for metal, surface treatment method for metallic material, and surface-treated metallic material |
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| CN104328411A (en) * | 2014-11-14 | 2015-02-04 | 无锡伊佩克科技有限公司 | High-temperature metal passivation solution and preparation method thereof |
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2015
- 2015-04-28 CN CN201510206820.0A patent/CN104911574A/en active Pending
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| JP2011241482A (en) * | 2004-10-26 | 2011-12-01 | Nippon Parkerizing Co Ltd | Surface treatment agent for metal, surface treatment method for metallic material, and surface-treated metallic material |
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Cited By (5)
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| CN108385098A (en) * | 2018-05-09 | 2018-08-10 | 广州斯特福材料科技有限公司 | Stainless steel environmentally friendly passivating solution and its application method |
| CN110578107A (en) * | 2019-09-30 | 2019-12-17 | 上海强安线缆材料有限公司 | processing method of antioxidant copper wire |
| CN115896658A (en) * | 2022-11-28 | 2023-04-04 | 太仓市林源电线电缆有限公司 | Surface oxidation resistance treatment method for soft copper braided wire |
| CN116631708A (en) * | 2023-06-16 | 2023-08-22 | 深圳市龙辉电业有限公司 | An anti-oxidation and corrosion-resistant copper braided wire and its manufacturing method |
| CN116631708B (en) * | 2023-06-16 | 2023-12-29 | 深圳市龙辉电业有限公司 | Antioxidant corrosion-resistant copper braided wire and manufacturing method thereof |
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