CN104046838A - Preparation method of high-strength high-toughness copper alloy wire for automatic cables - Google Patents
Preparation method of high-strength high-toughness copper alloy wire for automatic cables Download PDFInfo
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- CN104046838A CN104046838A CN201410245906.XA CN201410245906A CN104046838A CN 104046838 A CN104046838 A CN 104046838A CN 201410245906 A CN201410245906 A CN 201410245906A CN 104046838 A CN104046838 A CN 104046838A
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 39
- 238000010792 warming Methods 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 9
- 239000005995 Aluminium silicate Substances 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 235000012211 aluminium silicate Nutrition 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000010455 vermiculite Substances 0.000 claims description 6
- 229910052902 vermiculite Inorganic materials 0.000 claims description 6
- 235000019354 vermiculite Nutrition 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229940037003 alum Drugs 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910001610 cryolite Inorganic materials 0.000 claims description 3
- 239000006052 feed supplement Substances 0.000 claims description 3
- 235000012041 food component Nutrition 0.000 claims description 3
- 239000005417 food ingredient Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009775 high-speed stirring Methods 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000005543 nano-size silicon particle Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 238000010223 real-time analysis Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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Abstract
The invention discloses a preparation method of a high-strength high-toughness copper alloy wire for automatic cables. The copper alloy wire comprises the following components by weight percent: 4.0%-6.0% of Al, 1.5%-2.5% of Mn, 1.2%-1.8% of Fe, 0.6%-1.4% of Ni, 0.5%-1.0% of Be, 0.3%-0.6% of Sn, 0.25%-0.45% of Co, 0.1%-0.2% of V, 0.008%-0.016% of Sr, 0.005%-0.015% of Se, 0.03%-0.04% of La, 0.02%-0.03% of Y, 0.01%-0.02% of Pr, 0.005%-0.01% of P and the balance of copper and inevitable impurities. According to the method, the mechanical strength of the copper alloy wire can be greatly enhanced, the ductility of the copper alloy wire is remarkably improved, excellent toughness and plasticity can be kept, and the conflict between the mechanical strength and the toughness of the copper alloy wire is effectively eliminated; meanwhile, the method is simple in production process, low in cost, high in efficiency and easy to control, can achieve large-scale automated production, and has good industrial prospect.
Description
Technical field
The present invention relates to the preparation method of high-strength tough copper alloy wire for a kind of automobile cable, belong to copper alloy manufacturing technology field.
Background technology
Copper alloy wire has good Dao electricity ﹑ Dao Re ﹑ ductility and solidity to corrosion, is widely used in automobile electric wire cable.In recent years, along with developing rapidly of automotive industry, the performance of copper alloy wire is had higher requirement.Yet existing copper alloy wire exists toughness and these those long contradictions that disappear of physical strength, thereby cause high strength copper alloy line in use easily to occur wrinkle and crackle, affect its use properties, therefore, urgently develop high-strength tough copper alloy wire, with meeting the market requirement.
Summary of the invention
The object of the present invention is to provide the preparation method of high-strength tough copper alloy wire for a kind of automobile cable, guaranteeing, under the prerequisite of copper alloy wire physical strength, to improve ductility and the toughness of copper alloy wire.
The technical solution used in the present invention is as follows:
A preparation method for high-strength tough copper alloy wire for automobile cable, comprises the following steps:
(1) copper billet added in smelting furnace and be warming up to fusing at 1200-1250 ℃, being then warming up to 1240-1280 ℃, adding associated alloys food ingredient, stir, after whole fusings, temperature adjustment adds refining agent refining 25-35min to 1220-1260 ℃, after skimming, is incubated 15-20min; Again copper alloy liquid is carried out to stokehold chemistry real-time analysis, the weight percent of each elemental composition in copper alloy liquid is met the following requirements: Al 4.0-6.0, Mn 1.5-2.5, Fe 1.2-1.8, Ni 0.6-1.4, Be 0.5-1.0, Sn 0.3-0.6, Co 0.25-0.45, V 0.1-0.2, Sr 0.008-0.016, Se 0.005-0.015, La 0.03-0.04, Y 0.02-0.03, Pr 0.01-0.02, P 0.005-0.01, surplus is copper and inevitable impurity; After analysis, according to the weight percent of each component in formula, adjust feed supplement;
(2) copper alloy liquid temperature is adjusted to 1180-1230 ℃, then adopts continuous casting and rolling to become copper alloy bar, and the copper alloy bar making is warming up to 380-440 ℃ with 180-240 ℃/h speed, insulation 3-5h; With 120-150 ℃/h speed, be warming up to 560-590 ℃ again, insulation 2-3h, then be cooled to 160-190 ℃ with 200-250 ℃/h speed, and insulation 5-10h, water-cooled is to room temperature; Then with 250-280 ℃/h speed, be warming up to 480-520 ℃, insulation 2-3h, then with 150-200 ℃/h speed, be warming up to 880-920 ℃, insulation 1-2h; Then with 100-120 ℃/h speed, be cooled to 620-660 ℃, insulation 2-3h, then be cooled to 320-350 ℃ with 140-160 ℃/h speed, insulation 3-4h, is quenched to 150-180 ℃ with 0-3 ℃ of icy salt solution, then with drawing wire machine, copper alloy bar is drawn into copper alloy single line;
(3) copper alloy wire is sent into and in heat treatment furnace, carried out ageing treatment: first with 70-80 ℃/h speed, be warming up to 150-180 ℃, insulation 6-12h, then with 50-60 ℃/h speed, be warming up to 250-300 ℃, insulation 4-8h; Then with 80-100 ℃/h speed, be cooled to 120-140 ℃, insulation 10-15h, then be warming up to 320-350 ℃ with 100-120 ℃/h speed, insulation 3-6h, then with 50-60 ℃/h speed, be warming up to 470-490 ℃, insulation 2-3h; Then with 220-250 ℃/h speed, be cooled to 180-220 ℃, insulation 5-10h, with stove air cooling to room temperature.
The preparation method of described refining agent is as follows: a, get the raw material of following weight part: vermiculite 2-3, kaolin 4-6, carnallitite 3-5, Calcium Fluoride (Fluorspan) 2-3, manganese mud 3-6, potassium fluotitanate 2-4, alum powder 1.5-2.5, cryolite powder 2-3, nano-silicon nitride 1-2, Repone K 3-4, silane resin acceptor kh-550 1-2; B, vermiculite, kaolin, carnallitite are mixed to send at 520-550 ℃ and calcine 2-4h, take out and pulverized 200-300 mesh sieve; Add water making beating and make the slurries of 45-55%, then adding concentration is the hydrochloric acid soln adjusting slurries PH=4.5-5.0 of 15-20%, 2000-3000rpm speed lapping 20-30min, it is neutral that the sodium hydroxide solution that is 15-20% by concentration regulates lapping liquid pH value, and spraying is dried to obtain powder, then adds all the other raw materials, 1500-2000rpm high-speed stirring 5-10min, dry, pulverize, cross 300-400 mesh sieve.
Beneficial effect of the present invention:
The inventive method not only can significantly improve the physical strength of copper alloy wire, and significantly improves the ductility of copper alloy wire, can keep good toughness and plasticity, efficiently solves these those long contradictions that disappear of copper alloy wire physical strength and toughness; Production technique is simple simultaneously, and cost is low, and efficiency is high and easy to control, can realize automatic mass production, has good industrial prospect.
embodiment
A preparation method for high-strength tough copper alloy wire for automobile cable, comprises the following steps:
(1) copper billet added in smelting furnace and be warming up to fusing at 1240 ℃, being then warming up to 1280 ℃, adding associated alloys food ingredient, stirring, after all melting, temperature adjustment to 1250 ℃ adds refining agent refining 30min, after skimming, is incubated 18min; Again copper alloy liquid is carried out to stokehold chemistry real-time analysis, the weight percent of each elemental composition in copper alloy liquid is met the following requirements: Al 4.0-6.0, Mn 1.5-2.5, Fe 1.2-1.8, Ni 0.6-1.4, Be 0.5-1.0, Sn 0.3-0.6, Co 0.25-0.45, V 0.1-0.2, Sr 0.008-0.016, Se 0.005-0.015, La 0.03-0.04, Y 0.02-0.03, Pr 0.01-0.02, P 0.005-0.01, surplus is copper and inevitable impurity; After analysis, according to the weight percent of each component in formula, adjust feed supplement;
(2) copper alloy liquid temperature is adjusted to 1220 ℃, then adopts continuous casting and rolling to become copper alloy bar, and the copper alloy bar making is warming up to 420 ℃ with 220 ℃/h speed, insulation 4h; With 130 ℃/h speed, be warming up to 580 ℃ again, insulation 2h, then be cooled to 170 ℃ with 240 ℃/h speed, and insulation 8h, water-cooled is to room temperature; Then with 260 ℃/h speed, be warming up to 510 ℃, insulation 2h, then with 180 ℃/h speed, be warming up to 910 ℃, insulation 1h; Then with 120 ℃/h speed, be cooled to 640 ℃, insulation 2h, then be cooled to 330 ℃ with 150 ℃/h speed, insulation 3h, is quenched to 160 ℃ with 1 ℃ of icy salt solution, then with drawing wire machine, copper alloy bar is drawn into copper alloy single line;
(3) copper alloy wire is sent into and in heat treatment furnace, carried out ageing treatment: first with 80 ℃/h speed, be warming up to 180 ℃, insulation 10h, then with 60 ℃/h speed, be warming up to 270 ℃, insulation 6h; Then with 90 ℃/h speed, be cooled to 130 ℃, insulation 12h, then be warming up to 350 ℃ with 120 ℃/h speed, insulation 3h, then with 60 ℃/h speed, be warming up to 480 ℃, insulation 2h; Then with 240 ℃/h speed, be cooled to 180 ℃, insulation 8h, with stove air cooling to room temperature.
The preparation method of described refining agent is as follows: a, get the raw material of following weight (kg): vermiculite 3, kaolin 5, carnallitite 4, Calcium Fluoride (Fluorspan) 2, manganese mud 6, potassium fluotitanate 3, alum powder 1.5, cryolite powder 3, nano-silicon nitride 1.5, Repone K 3, silane resin acceptor kh-550 1.5; B, vermiculite, kaolin, carnallitite are mixed to send at 530 ℃ and calcine 3h, take out and pulverized 250 mesh sieves; Add water making beating and make 50% slurries, then add concentration and be 15% hydrochloric acid soln and regulate slurries PH=5.0,3000rpm speed lapping 20min, it is neutral that the sodium hydroxide solution that is 18% by concentration regulates lapping liquid pH value, and spraying is dried to obtain powder, then adds all the other raw materials, 2000rpm high-speed stirring 5min, dry, pulverize, cross 300 mesh sieves.
The copper alloy wire making is through check, and its salient features is: tensile strength 524Mpa, yield strength is 432Mpa, unit elongation 27%, electric conductivity IACS(20 ℃) 91%.
Claims (2)
1. a preparation method for high-strength tough copper alloy wire for automobile cable, is characterized in that comprising the following steps:
(1) copper billet added in smelting furnace and be warming up to fusing at 1200-1250 ℃, being then warming up to 1240-1280 ℃, adding associated alloys food ingredient, stir, after whole fusings, temperature adjustment adds refining agent refining 25-35min to 1220-1260 ℃, after skimming, is incubated 15-20min; Again copper alloy liquid is carried out to stokehold chemistry real-time analysis, the weight percent of each elemental composition in copper alloy liquid is met the following requirements: Al 4.0-6.0, Mn 1.5-2.5, Fe 1.2-1.8, Ni 0.6-1.4, Be 0.5-1.0, Sn 0.3-0.6, Co 0.25-0.45, V 0.1-0.2, Sr 0.008-0.016, Se 0.005-0.015, La 0.03-0.04, Y 0.02-0.03, Pr 0.01-0.02, P 0.005-0.01, surplus is copper and inevitable impurity; After analysis, according to the weight percent of each component in formula, adjust feed supplement;
(2) copper alloy liquid temperature is adjusted to 1180-1230 ℃, then adopts continuous casting and rolling to become copper alloy bar, and the copper alloy bar making is warming up to 380-440 ℃ with 180-240 ℃/h speed, insulation 3-5h; With 120-150 ℃/h speed, be warming up to 560-590 ℃ again, insulation 2-3h, then be cooled to 160-190 ℃ with 200-250 ℃/h speed, and insulation 5-10h, water-cooled is to room temperature; Then with 250-280 ℃/h speed, be warming up to 480-520 ℃, insulation 2-3h, then with 150-200 ℃/h speed, be warming up to 880-920 ℃, insulation 1-2h; Then with 100-120 ℃/h speed, be cooled to 620-660 ℃, insulation 2-3h, then be cooled to 320-350 ℃ with 140-160 ℃/h speed, insulation 3-4h, is quenched to 150-180 ℃ with 0-3 ℃ of icy salt solution, then with drawing wire machine, copper alloy bar is drawn into copper alloy single line;
(3) copper alloy wire is sent into and in heat treatment furnace, carried out ageing treatment: first with 70-80 ℃/h speed, be warming up to 150-180 ℃, insulation 6-12h, then with 50-60 ℃/h speed, be warming up to 250-300 ℃, insulation 4-8h; Then with 80-100 ℃/h speed, be cooled to 120-140 ℃, insulation 10-15h, then be warming up to 320-350 ℃ with 100-120 ℃/h speed, insulation 3-6h, then with 50-60 ℃/h speed, be warming up to 470-490 ℃, insulation 2-3h; Then with 220-250 ℃/h speed, be cooled to 180-220 ℃, insulation 5-10h, with stove air cooling to room temperature.
2. the preparation method of high-strength tough copper alloy wire for a kind of automobile cable according to claim 1, it is characterized in that, the preparation method of described refining agent is as follows: a, get the raw material of following weight part: vermiculite 2-3, kaolin 4-6, carnallitite 3-5, Calcium Fluoride (Fluorspan) 2-3, manganese mud 3-6, potassium fluotitanate 2-4, alum powder 1.5-2.5, cryolite powder 2-3, nano-silicon nitride 1-2, Repone K 3-4, silane resin acceptor kh-550 1-2; B, vermiculite, kaolin, carnallitite are mixed to send at 520-550 ℃ and calcine 2-4h, take out and pulverized 200-300 mesh sieve; Add water making beating and make the slurries of 45-55%, then adding concentration is the hydrochloric acid soln adjusting slurries PH=4.5-5.0 of 15-20%, 2000-3000rpm speed lapping 20-30min, it is neutral that the sodium hydroxide solution that is 15-20% by concentration regulates lapping liquid pH value, and spraying is dried to obtain powder, then adds all the other raw materials, 1500-2000rpm high-speed stirring 5-10min, dry, pulverize, cross 300-400 mesh sieve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410245906.XA CN104046838A (en) | 2014-06-05 | 2014-06-05 | Preparation method of high-strength high-toughness copper alloy wire for automatic cables |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332221A (en) * | 2014-11-28 | 2015-02-04 | 彭伟成 | High-strength cable and preparation method thereof |
| CN105734337A (en) * | 2016-05-05 | 2016-07-06 | 太仓小小精密模具有限公司 | Wearing-resistant cooper alloy mold material |
| CN105803252A (en) * | 2016-05-06 | 2016-07-27 | 河南优克电子材料有限公司 | Manufacturing method for high-strength and high-conductivity copper alloy wire used for electronic cable |
| CN106251926A (en) * | 2016-08-10 | 2016-12-21 | 安徽晋源铜业有限公司 | A kind of preparation technology of high-strength and high ductility copper conductor |
| CN107190175A (en) * | 2017-06-15 | 2017-09-22 | 柳州豪祥特科技有限公司 | The preparation method of wear resistant friction reducing manganese aluminum copper alloy material |
| CN107254592A (en) * | 2017-06-15 | 2017-10-17 | 柳州豪祥特科技有限公司 | The preparation method of high manganese copper content alloy material |
| CN109706341A (en) * | 2019-01-18 | 2019-05-03 | 沈阳金科有色产品研制有限公司 | One kind wear-resistant copper alloy of high strength and high hardness containing cobalt and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005028143A1 (en) * | 2003-09-24 | 2005-03-31 | Sumitomo Metal Industries, Ltd. | Continuous casting mold and method of continuous casting for copper alloy |
| CN103352140A (en) * | 2013-07-01 | 2013-10-16 | 铜陵兴怡金属材料有限公司 | High-strength high-conductivity heatproof copper alloy wire rod and preparation method thereof |
| CN103695805A (en) * | 2013-11-18 | 2014-04-02 | 安徽利思达网业有限公司 | High strength and high wear-resistance stainless steel wire and preparation method thereof |
-
2014
- 2014-06-05 CN CN201410245906.XA patent/CN104046838A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005028143A1 (en) * | 2003-09-24 | 2005-03-31 | Sumitomo Metal Industries, Ltd. | Continuous casting mold and method of continuous casting for copper alloy |
| CN103352140A (en) * | 2013-07-01 | 2013-10-16 | 铜陵兴怡金属材料有限公司 | High-strength high-conductivity heatproof copper alloy wire rod and preparation method thereof |
| CN103695805A (en) * | 2013-11-18 | 2014-04-02 | 安徽利思达网业有限公司 | High strength and high wear-resistance stainless steel wire and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332221A (en) * | 2014-11-28 | 2015-02-04 | 彭伟成 | High-strength cable and preparation method thereof |
| CN104332221B (en) * | 2014-11-28 | 2016-08-17 | 国家电网公司 | A kind of high-strength cable and preparation method thereof |
| CN105734337A (en) * | 2016-05-05 | 2016-07-06 | 太仓小小精密模具有限公司 | Wearing-resistant cooper alloy mold material |
| CN105803252A (en) * | 2016-05-06 | 2016-07-27 | 河南优克电子材料有限公司 | Manufacturing method for high-strength and high-conductivity copper alloy wire used for electronic cable |
| CN106251926A (en) * | 2016-08-10 | 2016-12-21 | 安徽晋源铜业有限公司 | A kind of preparation technology of high-strength and high ductility copper conductor |
| CN107190175A (en) * | 2017-06-15 | 2017-09-22 | 柳州豪祥特科技有限公司 | The preparation method of wear resistant friction reducing manganese aluminum copper alloy material |
| CN107254592A (en) * | 2017-06-15 | 2017-10-17 | 柳州豪祥特科技有限公司 | The preparation method of high manganese copper content alloy material |
| CN109706341A (en) * | 2019-01-18 | 2019-05-03 | 沈阳金科有色产品研制有限公司 | One kind wear-resistant copper alloy of high strength and high hardness containing cobalt and preparation method thereof |
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