CN108018440A - A kind of preparation method of copper alloy with high strength and high conductivity silk material - Google Patents
A kind of preparation method of copper alloy with high strength and high conductivity silk material Download PDFInfo
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- CN108018440A CN108018440A CN201711414399.8A CN201711414399A CN108018440A CN 108018440 A CN108018440 A CN 108018440A CN 201711414399 A CN201711414399 A CN 201711414399A CN 108018440 A CN108018440 A CN 108018440A
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- copper
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
The invention discloses a kind of preparation method of copper alloy with high strength and high conductivity silk material, copper alloy silk material is in percentage by weight, chromium content 0.8% 1.0%, zirconium content 0.08 0.10%, titanium 0.008~0.010%, tin 0.008~0.010%, magnesium 0.008~0.010%, niobium 0.008~0.010%, indium 0.008~0.010%, remaining surplus are copper；Tensile strength >=600MPa of the copper alloy silk material of preparation, elongation >=6%, conductivity >=85%IACS, softening temperature >=600 DEG C, silk material diameter are less than 50mm, and silk material diameter dimension tolerance is ± 5%；Single copper wire length reaches more than 30 myriametres.
Description
Technical field
The present invention relates to a kind of preparation method of nonferrous materials, more particularly to aerospace high-strength high-conductivity copper chromium zirconium
The preparation method of alloy wire.
Background technology
High-performance special electric wire be mainly used for new energy, information industry, space flight and aviation, track traffic, ocean engineering,
The fields such as electronics microelectronics, robot, medical machinery.So-called Special Wires and Cables show " conductor is special " and " insulating materials
It is special "., it is necessary to meet high-strength, high lead, is ultra-fine etc. for inner wire.With China and world's electronics industry, doctor
The high-end fields such as treatment, aerospace grow rapidly, it is urgent to high strength and high conductivity alloy filament materials demand, rely primarily at present into
Mouthful.The long-range aircraft of the one frame Boeing or airbus conductor of about 2.5 tons of the aviation wire more than 250km, to connect
See with more than 10,000 connectors；The aviation wire of the jet plane 70km of one frame short distance, and a frame Mini Tele-Copter needs to use
30km aviation wires.Cable used mainly has single telephone wire, multicore cable, high-temperature cable, coaxial cable, data transfer electricity
Cable etc..Therefore, the high property copper alloy of high-quality is continuously prepared to meet Contemporary Information industry and Defence business to high-performance
The demand of copper alloy silk thread material is of great significance, while also has a vast market value and Development volue.
High property copper alloy inner wire general satisfaction is claimed below：Higher conductivity；Have under defined elongation
High tensile strength；Good high heat resistance and wearability；Stability under high temperature and low temperature environment；Good is anti-tired
Labor performance；The connectivity of terminal fitting；Weldability and platability；Good processability, is readily processible to filament, and can be with
Ensure its long length demand；The stability of performance.
Line of the ASTMB624-99 electronics with high strength and high conductivity copper alloy standard to electronics high-strength high conductivity circle copper alloy
Footpath scope is defined as from 0.079mm to 1.829mm, and tensile strength is more than 414MPa, and conductivity is more than 85%IACS.U.S. Military
The tensile strength that MIL-W-82598 cadmium copper wire standards define AWG23 cadmium copper wires is more than 586MPa, and conductivity is more than 80%
IACS.GJB1640-93 aerospaces line cable conductor kind and section series standard regulation, the tensile strength of copper alloy wire
More than 490MPa, conductivity is more than 78.51%IACS, and elongation is more than 6%.
The content of the invention
A kind of preparation method the object of the present invention is to provide aerospace with high-strength high-conductivity copper-chromium-zirconium silk material.
The present invention prepares Cu-Cr-Zr alloy in percentage by weight, chromium content 0.8%-1.0%, zirconium content 0.08-
0.10%, titanium 0.008~0.010%, tin 0.008~0.010%, magnesium 0.008~0.010%, niobium 0.008~0.010%, indium
0.008~0.010%, remaining surplus is copper；The ratio of chromium content and zirconium content is 10：1, the ratio of zirconium content and Ti content
For 10：1, Ti content, Theil indices, content of magnesium, content of niobium, the ratio of indium content are 1：1：1：1：1.
The preparation method is that：Continuous up-casting-continuously extruded-continuous rolling-solid solution-continuous rolling-when
Effect-multi-pass wire drawing-solid solution-multi-pass wire drawing.
(1) continuous up-casting：Using power frequency continuous up-casting stove, launch into smelting apparatus, melt after Cu-CATH-1 is dried
Refining device includes smelting furnace, compartment, holding furnace three parts composition, and wherein melting furnace temperature is 1400-1450 DEG C, keeps the temperature furnace temperature
For 1350-1400 DEG C, compartment is provided with online depassing unit, is filled with 99.996% argon into copper liquid by online depassing unit
Gas, and by controlled rotation graphite shaft and rotor, argon gas is pressed into copper liquid and is dispersed as micro-bubble, it is uniformly divided
It is dispersed in copper liquid, so that achieve the purpose that degasification, deoxidation, source outlet pressure 0.5MPa, 0.5~1.0Nm of flow3/ h, rotor
Rotating speed is controlled in 150~200r/min, by online depassing unit, the oxygen content in copper liquid is less than 3ppm.
Smelting furnace is covered using charcoal, and compartment, holding furnace are covered using graphite flakes, while smelting furnace, compartment, holding furnace
Gas shield is carried out using argon gas.
Using granular pure chromium, add in copper pipe, proportionally added after drying in smelting furnace, granular pure chromium
Diameter is less than 3mm, and copper pipe diameter is less than 50mm, and copper pipe wall thickness is more than 2mm.
Using copper titanium intermediate alloy, copper and tin intermediate alloy, copper magnesium intermediate alloy, copper niobium intermediate alloy, copper and indium intermediate alloy,
Proportionally add in melting furnace, proportionally added using copper zirconium intermediate alloy in holding furnace.
Using traction link seat, continuous up-casting copper bar, copper bar pitch are 1.5~2.0mm in holding furnace, the speed of continuous up-casting
Spend for 500mm/min, stop Lapie and lead as 60%-70%, using fine pith, it is big stop Lapie and lead to improve copper bar surface quality, avoid
Copper bar is broken.Continuous up-casting diameter Ф 20mm, the cooling circulating water inflow temperature of crystallizer are less than 35 DEG C, and the cooling of crystallizer follows
Ring water is intake and leaving water temperature difference is less than 8 DEG C.
The crystallizer that continuous up-casting uses is ceramic material, meanwhile, internal surface of crystallizer chromium plating, the thickness of chrome layer is
0.05~0.2mm.
(2) it is continuously extruded：Continuous extruder rotating speed is 7r/min, continuously extruded temperature be more than 750 DEG C, it is continuously extruded to overflow
Material rate is controlled in 8-10%.
(3) continuous rolling：Mill speed 0.15-0.25 meter per seconds；The general working rate of continuous rolling is more than 80%.
(4) it is dissolved：890 DEG C -950 DEG C of temperature, when time 1-2 is small.
(5) continuous rolling：Mill speed 0.15-0.25 meter per seconds；The general working rate of continuous rolling is more than 60%.
(6) timeliness：450 DEG C -500 DEG C of temperature, when time 3-5 is small.
(7) multi-pass wire drawing：Multi-pass wire drawing is carried out within diameter 0.1mm-0.5mm using 8%-10% emulsions
Cooling.
(8) it is dissolved：890 DEG C -920 DEG C of temperature, when time 1-2 is small.
(9) multi-pass wire drawing：Multi-pass wire drawing is cooled down within diameter 0.05mm using 6%-8% emulsions, more
The method that online annealing is used in passage drawing process, reaches the effect of timeliness, and the voltage of online annealing is 50V-60V, speed
For 500-800m/min.
Tensile strength >=600MPa, elongation >=6%, conductivity >=85% of copper alloy silk material prepared by the above method
IACS, softening temperature >=600 DEG C, silk material diameter are less than 50mm, and silk material diameter dimension tolerance is ± 5%；Single copper wire length reaches
To more than 30 myriametres.
The beneficial effects of the present invention are：
1. using the method for non-vacuum melting, the continuous production of Cu-Cr-Zr alloy silk material is realized.
2. using the metal adding method of pure chromium, production cost is reduced, is protected using argon gas, control oxygen content etc. is arranged
Apply, make the volatile quantity of chromium, zirconium less, optimize the technological parameter of continuous up-casting, using fine pith, the big method stopped Lapie and led, adopt
With the crystallizer of the ceramic material of chromium plating, ensure continuous up-casting copper bar any surface finish.
3. using continuously extruded, continuous rolling, the method for solid solution aging twice, the performance of the Cu-Cr-Zr alloy silk material of preparation
It is excellent.
Embodiment
With reference to embodiment, the invention will be further described.
The present invention prepares Cu-Cr-Zr alloy in percentage by weight, chromium content 1.0%, zirconium content 0.10%, titanium
0.010%, tin 0.010%, magnesium 0.010%, niobium 0.010%, indium 0.010%, remaining surplus is copper.
The preparation method is that：Continuous up-casting-continuously extruded-continuous rolling-solid solution-continuous rolling-when
Effect-multi-pass wire drawing-solid solution-multi-pass wire drawing.
(1) continuous up-casting：Using power frequency continuous up-casting stove, launch into smelting apparatus, melt after Cu-CATH-1 is dried
Refining device includes smelting furnace, compartment, holding furnace three parts composition, and wherein melting furnace temperature is 1400 DEG C, and insulation furnace temperature is
1350 DEG C, compartment is provided with online depassing unit, is filled with 99.996% argon gas into copper liquid by online depassing unit, and leads to
Controlled rotation graphite shaft and rotor are crossed, argon gas is pressed into copper liquid and is dispersed as micro-bubble, it is uniformly dispersed in copper
In liquid, so that achieve the purpose that degasification, deoxidation, source outlet pressure 0.5MPa, 0.5~1.0Nm of flow3/ h, rotor speed control
Make in 150~200r/min, by online depassing unit, the oxygen content in copper liquid is less than 3ppm.
Smelting furnace is covered using charcoal, and compartment, holding furnace are covered using graphite flakes, while smelting furnace, compartment, holding furnace
Gas shield is carried out using argon gas.
Using granular pure chromium, add in copper pipe, proportionally added after drying in smelting furnace, granular pure chromium
Diameter is less than 3mm, and copper pipe diameter is less than 50mm, and copper pipe wall thickness is more than 2mm.
Using copper titanium intermediate alloy, copper and tin intermediate alloy, copper magnesium intermediate alloy, copper niobium intermediate alloy, copper and indium intermediate alloy,
Proportionally add in melting furnace, proportionally added using copper zirconium intermediate alloy in holding furnace.
Using traction link seat, continuous up-casting copper bar, copper bar pitch are 1.5~2.0mm in holding furnace, the speed of continuous up-casting
Spend for 500mm/min, stop Lapie and lead as 60%-70%, using fine pith, it is big stop Lapie and lead to improve copper bar surface quality, avoid
Copper bar is broken.Continuous up-casting diameter Ф 20mm, the cooling circulating water inflow temperature of crystallizer are less than 35 DEG C, and the cooling of crystallizer follows
Ring water is intake and leaving water temperature difference is less than 8 DEG C.
The crystallizer that continuous up-casting uses is ceramic material, meanwhile, internal surface of crystallizer chromium plating, the thickness of chrome layer is
0.05~0.2mm.
(2) it is continuously extruded：Continuous extruder rotating speed is 7r/min, continuously extruded temperature be more than 750 DEG C, it is continuously extruded to overflow
Material rate is controlled in 8-10%.
(3) continuous rolling：Mill speed 0.15-0.25 meter per seconds；The general working rate of continuous rolling is more than 80%.
(4) it is dissolved：950 DEG C of temperature, when time 1-2 is small.
(5) continuous rolling：Mill speed 0.15-0.25 meter per seconds；The general working rate of continuous rolling is more than 60%.
(6) timeliness：500 DEG C of temperature, when time 3-5 is small.
(7) multi-pass wire drawing：Multi-pass wire drawing is carried out within diameter 0.1mm-0.5mm using 8%-10% emulsions
Cooling.
(8) it is dissolved：920 DEG C of temperature, when time 1-2 is small.
(9) multi-pass wire drawing：Multi-pass wire drawing is cooled down within diameter 0.05mm using 6%-8% emulsions, more
The method that online annealing is used in passage drawing process, reaches the effect of timeliness, and the voltage of online annealing is 50V-60V, speed
For 500-800m/min.
Tensile strength >=600MPa of Cu-Cr-Zr alloy silk material prepared by the above method, elongation >=6%, conductivity >=
85%IACS, softening temperature >=600 DEG C, silk material diameter are less than 50mm, and silk material diameter dimension tolerance is ± 5%；Single copper wire length
Degree reaches more than 30 myriametres.
Above-described embodiment is only used for illustrating the inventive concept of the present invention, rather than the restriction to rights protection of the present invention,
All changes for carrying out unsubstantiality to the present invention using this design, should all fall into protection scope of the present invention.
Claims (2)
- A kind of 1. preparation method of copper alloy with high strength and high conductivity silk material, it is characterised in that：The copper alloy silk material is according to weight hundred Divide than meter, chromium content 0.8%-1.0%, zirconium content 0.08-0.10%, titanium 0.008~0.010%, tin 0.008~0.010%, Magnesium 0.008~0.010%, niobium 0.008~0.010%, indium 0.008~0.010%, remaining surplus are copper；Chromium content and zirconium The ratio of content is 10：1, the ratio of zirconium content and Ti content is 10：1, Ti content, Theil indices, content of magnesium, content of niobium, indium contain The ratio of amount is 1：1：1：1：1；Tensile strength >=600MPa of the Cu-Cr-Zr alloy silk material, elongation >=6%, conductivity >=85%IACS, softening temperature >=600 DEG C, silk material diameter are less than 50mm, and silk material diameter dimension tolerance is ± 5%；Single copper wire Length reaches more than 30 myriametres.
- A kind of 2. preparation method of copper alloy with high strength and high conductivity silk material as claimed in claim 1, it is characterised in that：Including following step Suddenly：Continuous up-casting-continuously extruded-continuous rolling-solid solution-continuous rolling-timeliness-multi-pass wire drawing-solid solution-multiple tracks Secondary wire drawing：(1) continuous up-casting：Using power frequency continuous up-casting stove, launched after Cu-CATH-1 is dried into smelting apparatus, melting dress Put including smelting furnace, compartment, holding furnace three parts composition, wherein melting furnace temperature is 1400-1450 DEG C, and insulation furnace temperature is 1350-1400 DEG C, compartment is provided with online depassing unit, is filled with 99.996% argon into copper liquid by online depassing unit Gas, and by controlled rotation graphite shaft and rotor, argon gas is pressed into copper liquid and is dispersed as micro-bubble, it is uniformly divided It is dispersed in copper liquid, so that achieve the purpose that degasification, deoxidation, source outlet pressure 0.5MPa, 0.5~1.0Nm of flow3/ h, rotor Rotating speed is controlled in 150~200r/min, by online depassing unit, the oxygen content in copper liquid is less than 3ppm；Smelting furnace uses Charcoal covers, and compartment, holding furnace are covered using graphite flakes, while smelting furnace, compartment, holding furnace carry out gas using argon gas Protection；Using granular pure chromium, add in copper pipe, proportionally added after drying in smelting furnace, granular pure chromium it is straight Footpath is less than 3mm, and copper pipe diameter is less than 50mm, and copper pipe wall thickness is more than 2mm；Using copper titanium intermediate alloy, copper and tin intermediate alloy, copper magnesium Intermediate alloy, copper niobium intermediate alloy, copper and indium intermediate alloy, proportionally add melting furnace in, using copper zirconium intermediate alloy according to Ratio is added in holding furnace；Using traction link seat, continuous up-casting copper bar, copper bar pitch are 1.5~2.0mm in holding furnace, are above drawn The speed of continuous casting is 500mm/min, stops Lapie and leads as 60%-70%, using fine pith, big stops Lapie and lead to improve copper bar surface matter Amount, avoids copper bar from breaking；Continuous up-casting diameter Ф 20mm, the cooling circulating water inflow temperature of crystallizer are less than 35 DEG C, crystallizer Cooling circulating water water inlet and leaving water temperature difference be less than 8 DEG C；The crystallizer that continuous up-casting uses is ceramic material, meanwhile, crystallization Device inner surface chromium plating, the thickness of chrome layer is 0.05~0.2mm；(2) it is continuously extruded：Continuous extruder rotating speed is 7r/min, and continuously extruded temperature is the continuously extruded flash rate more than 750 DEG C Control is in 8-10%；(3) continuous rolling：Mill speed 0.15-0.25 meter per seconds；The general working rate of continuous rolling is more than 80%；(4) it is dissolved：890 DEG C -950 DEG C of temperature, when time 1-2 is small；(5) continuous rolling：Mill speed 0.15-0.25 meter per seconds；The general working rate of continuous rolling is more than 60%；(6) timeliness：450 DEG C -500 DEG C of temperature, when time 3-5 is small；(7) multi-pass wire drawing：Multi-pass wire drawing is cooled down within diameter 0.1mm-0.5mm using 8%-10% emulsions；(8) it is dissolved：890 DEG C -920 DEG C of temperature, when time 1-2 is small；(9) multi-pass wire drawing：Multi-pass wire drawing is cooled down, multi-pass within diameter 0.05mm using 6%-8% emulsions The method that online annealing is used in drawing process, reaches the effect of timeliness, the voltage of online annealing is 50V-60V, and speed is 500-800m/min。
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538429A (en) * | 2018-05-30 | 2018-09-14 | 安徽尼古拉电子科技有限公司 | A kind of high temperature resistant molybdenum alloy cable |
| CN108538430A (en) * | 2018-05-30 | 2018-09-14 | 安徽尼古拉电子科技有限公司 | A kind of molybdenum alloy cable that electric conductivity is good |
| CN108866381A (en) * | 2018-07-23 | 2018-11-23 | 铜陵金力铜材有限公司 | A kind of copper alloy with high strength and high conductivity wire rod and preparation method thereof |
| CN109092918A (en) * | 2018-07-19 | 2018-12-28 | 安吉热威电热科技有限公司 | Mode structure and process are matched in a kind of resistance wire wire drawing |
| CN109092917A (en) * | 2018-07-19 | 2018-12-28 | 安吉热威电热科技有限公司 | A kind of wire-drawing frame and technique of sag-resistant resistance wire |
| CN109355527A (en) * | 2018-11-14 | 2019-02-19 | 世纪电缆有限公司 | A kind of preparation method of high-strength highly-conductive copper wire |
| CN109913691A (en) * | 2019-04-22 | 2019-06-21 | 南通科誉德摩尔新材料有限公司 | A kind of manufacture craft of high-strength compound chromium-zirconium-copper material |
| CN111057900A (en) * | 2020-01-09 | 2020-04-24 | 绍兴市力博科技有限公司 | Preparation method of copper alloy wire for ultra-thin coaxial cable |
| CN111118334A (en) * | 2020-01-09 | 2020-05-08 | 绍兴市力博科技有限公司 | Preparation method of fatigue-resistant copper alloy wire for cable |
| CN111167876A (en) * | 2020-01-09 | 2020-05-19 | 绍兴市力博科技有限公司 | Preparation method of fatigue-resistant oxygen-free copper wire for cable |
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| CN106222477A (en) * | 2016-08-22 | 2016-12-14 | 徐高磊 | A kind of electric automobile charging pile adapter tellurium copper alloy and production technology thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538429A (en) * | 2018-05-30 | 2018-09-14 | 安徽尼古拉电子科技有限公司 | A kind of high temperature resistant molybdenum alloy cable |
| CN108538430A (en) * | 2018-05-30 | 2018-09-14 | 安徽尼古拉电子科技有限公司 | A kind of molybdenum alloy cable that electric conductivity is good |
| CN109092918A (en) * | 2018-07-19 | 2018-12-28 | 安吉热威电热科技有限公司 | Mode structure and process are matched in a kind of resistance wire wire drawing |
| CN109092917A (en) * | 2018-07-19 | 2018-12-28 | 安吉热威电热科技有限公司 | A kind of wire-drawing frame and technique of sag-resistant resistance wire |
| CN108866381A (en) * | 2018-07-23 | 2018-11-23 | 铜陵金力铜材有限公司 | A kind of copper alloy with high strength and high conductivity wire rod and preparation method thereof |
| CN109355527A (en) * | 2018-11-14 | 2019-02-19 | 世纪电缆有限公司 | A kind of preparation method of high-strength highly-conductive copper wire |
| CN109913691A (en) * | 2019-04-22 | 2019-06-21 | 南通科誉德摩尔新材料有限公司 | A kind of manufacture craft of high-strength compound chromium-zirconium-copper material |
| CN111057900A (en) * | 2020-01-09 | 2020-04-24 | 绍兴市力博科技有限公司 | Preparation method of copper alloy wire for ultra-thin coaxial cable |
| CN111118334A (en) * | 2020-01-09 | 2020-05-08 | 绍兴市力博科技有限公司 | Preparation method of fatigue-resistant copper alloy wire for cable |
| CN111167876A (en) * | 2020-01-09 | 2020-05-19 | 绍兴市力博科技有限公司 | Preparation method of fatigue-resistant oxygen-free copper wire for cable |
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