CN104046831A - Making method of copper alloy wire for automobiles - Google Patents

Making method of copper alloy wire for automobiles Download PDF

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Publication number
CN104046831A
CN104046831A CN201410245679.0A CN201410245679A CN104046831A CN 104046831 A CN104046831 A CN 104046831A CN 201410245679 A CN201410245679 A CN 201410245679A CN 104046831 A CN104046831 A CN 104046831A
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copper alloy
insulation
speed
warming
copper
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CN201410245679.0A
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徐泽军
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Ruizhan Tongling Technologies Co Ltd
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Ruizhan Tongling Technologies Co Ltd
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Priority to CN201410245679.0A priority Critical patent/CN104046831A/en
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Abstract

The invention discloses a making method of a copper alloy wire for automobiles. The copper alloy wire comprises 0.3-0.6wt% of Mg, 0.2-0.4wt% of Ag, 0.4-0.7wt% of Sn, 0.15-0.25wt% of V, 0.12-0.18wt% of Nb, 0.05-0.1wt% of Ca, 0.04-0.08wt% of Sr, 0.03-0.05wt% of In, 0.02-0.03wt% of Se, 0.03-0.04wt% of La, 0.02-0.03wt% of Pr, 0.01-0.02wt% of Gd, 0.005-0.01wt% of P, and the balance Cu and inevitable impurities. The addition of a proper amount of Ag, In, Sr, Ca and the like in copper alloy substantially improves the tensile strength and the fatigue resistance of the alloy, enhances the flex resistance, and improves the elongation performance, so the reduction of the diameter of the wire and the reduction of the weight of a wire harness are realized on the premise that the mechanical strength and the fatigue resistance of a wire conductor are guaranteed.

Description

A kind of preparation method of automobile copper alloy wiring
Technical field
The present invention relates to a kind of preparation method of automobile copper alloy wiring, belong to copper alloy manufacturing technology field.
Background technology
Along with improving constantly of automotive performance; correspondingly increased the number of the required electric wires of automobile electric parts; also consider that environment protection, resources conservation and fuel efficiency improve, need to alleviate vehicle weight, this just need to alleviate the weight of the wire harness using in automobile simultaneously.It for a solution that alleviates wire harness weight, is the diameter that reduces to form the wire conductor of wire harness.Yet, when wire conductor diameter reduces, cause the performances such as physical strength, antifatigue of wire to reduce.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of preparation method of automobile copper alloy wiring is provided, when reducing wire conductor diameter, its physical strength, antifatigue still can meet the requirement of automobile electric wire.
The technical solution used in the present invention is as follows:
A preparation method for automobile copper alloy wiring, comprises the following steps:
(1) electrolytic copper is added in high frequency furnace, be heated to 1210-1260 ℃, after electrolytic copper fusing, be warming up to 1250-1300 ℃, add Mg, Ag, Sn, the metals such as V, simultaneously at copper alloy liquid surface coverage one deck insulating covering agent, insulation 16-22min, then 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: Mg 0.3-0.6, Ag 0.2-0.4, Sn 0.4-0.7, V 0.15-0.25, Nb 0.12-0.18, Ca 0.05-0.1, Sr 0.04-0.08, In 0.03-0.05, Se 0.02-0.03, La 0.03-0.04, Pr 0.02-0.03, Gd 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) to dropping into the fusing of Ti-Zr-Ni-Cu-Be alloy block by the feed intake 0.2-0.4% of weight of copper billet in stove, in alloy block, the mass ratio of Ti, Zr, Ni, Cu, Be element is 1-2:0.4-0.6:2-3:5-8:0.5-1, stirs 30-40min; Then temperature adjustment is to 1240-1280 ℃, then adds refining agent refining 20-30min, insulation 10-15min after slagging-off;
(3) continuous casting and rolling becomes copper alloy bar, drawing wire machine to be drawn into copper alloy single line;
(4) 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 160-190 ℃, insulation 4-6h, then with 80-100 ℃/h speed, be warming up to 320-350 ℃, insulation 2-3h, with 60-70 ℃/h speed, be warming up to 440-460 ℃ again, insulation 1-2h; Then with 110-130 ℃/h speed, be cooled to 220-240 ℃, insulation 3-5h, air cooling is to room temperature, with 100-120 ℃/h speed, be warming up to 280-320 ℃ again, insulation 2-4h, then with 50-60 ℃/h speed, be warming up to 400-420 ℃, insulation 1-2h, with 70-80 ℃/h speed, be warming up to 520-550 ℃ again, insulation 0.5-1h; Then with 220-240 ℃/h, be cooled to 180-210 ℃, insulation 4-8h, air cooling is to room temperature.
Described insulating covering agent is by the raw material of following weight part: glass powder 5-10, Wingdale 10-15, potassium felspar sand 8-12, peridotites 4-8, boron mud 12-16, volcanic ash 5-10, coconut husk charcoal 9-13, nano aluminum nitride 3-6, through mixing, dry, pulverize, cross 150-250 mesh sieve.
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 present invention adds the elements such as appropriate Ag, In, Sr, Ca in copper alloy, can significantly improve the strong and fatigue resistance of the stretching of alloy, strengthen resistance to flexing, improve elongation, can guarantee, under the prerequisite of wire conductor physical strength, fatigue resistance, to realize reducing of the diameter of wire and alleviating of wire harness weight like this.
Embodiment
A preparation method for automobile copper alloy wiring, comprises the following steps:
(1) electrolytic copper is added in high frequency furnace, be heated to 1240 ℃, after electrolytic copper fusing, be warming up to 1280 ℃, add Mg, Ag, Sn, the metals such as V, simultaneously at copper alloy liquid surface coverage one deck insulating covering agent, insulation 16-22min, then 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: Mg 0.3-0.6, Ag 0.2-0.4, Sn 0.4-0.7, V 0.15-0.25, Nb 0.12-0.18, Ca 0.05-0.1, Sr 0.04-0.08, In 0.03-0.05, Se 0.02-0.03, La 0.03-0.04, Pr 0.02-0.03, Gd 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) to dropping into the fusing of Ti-Zr-Ni-Cu-Be alloy block by copper billet 0.3% of the weight that feeds intake in stove, in alloy block, the mass ratio of Ti, Zr, Ni, Cu, Be element is 1.5:0.5:2:6:0.8, stirs 35min; Then temperature adjustment to 1260 ℃, then add refining agent refining 25min, insulation 12min after slagging-off;
(3) continuous casting and rolling becomes copper alloy bar, drawing wire machine to be drawn into copper alloy single line;
(4) copper alloy wire is sent into and in heat treatment furnace, carried out ageing treatment: first with 80 ℃/h speed, be warming up to 170 ℃, insulation 5h, then be warming up to 340 ℃ with 100 ℃/h speed, insulation 2h, then with 70 ℃/h speed, be warming up to 450 ℃, insulation 1.5h; Then with 120 ℃/h speed, be cooled to 230 ℃, insulation 4h, air cooling is to room temperature, then is warming up to 300 ℃ with 100 ℃/h speed, insulation 3h, then be warming up to 420 ℃ with 60 ℃/h speed, insulation 1h, then with 80 ℃/h speed, be warming up to 550 ℃, insulation 0.5h; Then with 240 ℃/h, be cooled to 190 ℃, insulation 5h, air cooling is to room temperature.
Described insulating covering agent is by the raw material of following weight (kg): glass powder 10, Wingdale 12, potassium felspar sand 8, peridotites 6, boron mud 14, volcanic ash 8, coconut husk charcoal 12, nano aluminum nitride 4, through mixing, dry, and pulverize, cross 250 mesh sieves.
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 4, potassium fluotitanate 3, alum powder 2, cryolite powder 3, nano-silicon nitride 1.5, Repone K 3, silane resin acceptor kh-550 1; B, vermiculite, kaolin, carnallitite are mixed to send at 550 ℃ and calcine 2h, take out and pulverized 250 mesh sieves; Add water making beating and make 55% slurries, then add concentration and be 18% hydrochloric acid soln and regulate slurries PH=4.5,3000rpm speed lapping 20min, it is neutral that the sodium hydroxide solution that is 20% 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 531Mpa, yield strength is 426Mpa, unit elongation 24%, electric conductivity IACS(20 ℃) 92%.

Claims (3)

1. a preparation method for automobile copper alloy wiring, is characterized in that comprising the following steps:
(1) electrolytic copper is added in high frequency furnace, be heated to 1210-1260 ℃, after electrolytic copper fusing, be warming up to 1250-1300 ℃, add Mg, Ag, Sn, the metals such as V, simultaneously at copper alloy liquid surface coverage one deck insulating covering agent, insulation 16-22min, then 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: Mg 0.3-0.6, Ag 0.2-0.4, Sn 0.4-0.7, V 0.15-0.25, Nb 0.12-0.18, Ca 0.05-0.1, Sr 0.04-0.08, In 0.03-0.05, Se 0.02-0.03, La 0.03-0.04, Pr 0.02-0.03, Gd 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) to dropping into the fusing of Ti-Zr-Ni-Cu-Be alloy block by the feed intake 0.2-0.4% of weight of copper billet in stove, in alloy block, the mass ratio of Ti, Zr, Ni, Cu, Be element is 1-2:0.4-0.6:2-3:5-8:0.5-1, stirs 30-40min; Then temperature adjustment is to 1240-1280 ℃, then adds refining agent refining 20-30min, insulation 10-15min after slagging-off;
(3) continuous casting and rolling becomes copper alloy bar, drawing wire machine to be drawn into copper alloy single line;
(4) 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 160-190 ℃, insulation 4-6h, then with 80-100 ℃/h speed, be warming up to 320-350 ℃, insulation 2-3h, with 60-70 ℃/h speed, be warming up to 440-460 ℃ again, insulation 1-2h; Then with 110-130 ℃/h speed, be cooled to 220-240 ℃, insulation 3-5h, air cooling is to room temperature, with 100-120 ℃/h speed, be warming up to 280-320 ℃ again, insulation 2-4h, then with 50-60 ℃/h speed, be warming up to 400-420 ℃, insulation 1-2h, with 70-80 ℃/h speed, be warming up to 520-550 ℃ again, insulation 0.5-1h; Then with 220-240 ℃/h, be cooled to 180-210 ℃, insulation 4-8h, air cooling is to room temperature.
2. the preparation method of a kind of automobile copper alloy wiring according to claim 1, it is characterized in that, described insulating covering agent is by the raw material of following weight part: glass powder 5-10, Wingdale 10-15, potassium felspar sand 8-12, peridotites 4-8, boron mud 12-16, volcanic ash 5-10, coconut husk charcoal 9-13, nano aluminum nitride 3-6, through mixing, dry, pulverize, cross 150-250 mesh sieve.
3. the preparation method of a kind of automobile copper alloy wiring 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.
CN201410245679.0A 2014-06-05 2014-06-05 Making method of copper alloy wire for automobiles Pending CN104046831A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104313389A (en) * 2014-10-29 2015-01-28 陈唯锋 Copper alloy for leads
CN104328308A (en) * 2014-10-29 2015-02-04 陈唯锋 Copper alloy used for wire and preparation method of copper alloy
CN104328309A (en) * 2014-10-29 2015-02-04 陈唯锋 Copper alloy for valve
CN105741920A (en) * 2016-02-01 2016-07-06 安徽华峰电缆集团有限公司 Anti-tensile and anti-broken cable
CN105750354A (en) * 2016-03-31 2016-07-13 常州易藤电气有限公司 Method for manufacturing copper-magnesium alloy stranded wire for cold tinned railway
CN112458325A (en) * 2020-11-30 2021-03-09 江西众晶源科技有限公司 Preparation method of high-strength high-wear-resistance copper alloy
WO2021083385A1 (en) * 2019-11-25 2021-05-06 河南科技大学 Preparation method for copper or copper alloy material, and refining agent for refining

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EP1688198A1 (en) * 2003-09-24 2006-08-09 Sumitomo Metal Industries, Ltd. Continuous casting mold and method of continuous casting for copper alloy
JP2008001933A (en) * 2006-06-21 2008-01-10 Hitachi Cable Ltd Copper alloy material, copper alloy conductor, method for producing the same, trolley wire for cable and cable
CN101180412A (en) * 2005-07-07 2008-05-14 株式会社神户制钢所 Copper alloy having high strength and excellent bending workability, and method for producing copper alloy sheet
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
CN103834875A (en) * 2014-03-13 2014-06-04 安徽菲茵特电梯有限公司 Anti-corrosion elastic alloy material and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902096A1 (en) * 1997-09-12 1999-03-17 Fisk Alloy Wire, Inc. Method for manufacturing copper alloy wire and copper alloy wire
US20040238086A1 (en) * 2003-05-27 2004-12-02 Joseph Saleh Processing copper-magnesium alloys and improved copper alloy wire
EP1688198A1 (en) * 2003-09-24 2006-08-09 Sumitomo Metal Industries, Ltd. Continuous casting mold and method of continuous casting for copper alloy
CN101180412A (en) * 2005-07-07 2008-05-14 株式会社神户制钢所 Copper alloy having high strength and excellent bending workability, and method for producing copper alloy sheet
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104313389A (en) * 2014-10-29 2015-01-28 陈唯锋 Copper alloy for leads
CN104328308A (en) * 2014-10-29 2015-02-04 陈唯锋 Copper alloy used for wire and preparation method of copper alloy
CN104328309A (en) * 2014-10-29 2015-02-04 陈唯锋 Copper alloy for valve
CN105741920A (en) * 2016-02-01 2016-07-06 安徽华峰电缆集团有限公司 Anti-tensile and anti-broken cable
CN105750354A (en) * 2016-03-31 2016-07-13 常州易藤电气有限公司 Method for manufacturing copper-magnesium alloy stranded wire for cold tinned railway
WO2021083385A1 (en) * 2019-11-25 2021-05-06 河南科技大学 Preparation method for copper or copper alloy material, and refining agent for refining
CN112458325A (en) * 2020-11-30 2021-03-09 江西众晶源科技有限公司 Preparation method of high-strength high-wear-resistance copper alloy
CN112458325B (en) * 2020-11-30 2022-05-06 深圳市明鑫工业材料有限公司 Preparation method of high-strength high-wear-resistance copper alloy

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Application publication date: 20140917