CN108913939A - high tensile yield strength copper alloy wire - Google Patents
high tensile yield strength copper alloy wire Download PDFInfo
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- CN108913939A CN108913939A CN201810856506.0A CN201810856506A CN108913939A CN 108913939 A CN108913939 A CN 108913939A CN 201810856506 A CN201810856506 A CN 201810856506A CN 108913939 A CN108913939 A CN 108913939A
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- 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
- C22C9/10—Alloys based on copper with silicon as the next major constituent
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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
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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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
Abstract
The invention discloses a kind of high tensile yield strength copper alloy wires, are related to copper alloy wire technical field, including following elemental composition：Silicon：0.24~0.36%, iron：0.015~0.05%, lithium：0.13~0.27%, strontium：0.06~0.14%, scandium：0.02~0.08%, erbium：0.03~0.11%, tellurium：0.008~0.03%, phosphorus：0.005~0.01%, surplus is copper.Copper alloy wire of the invention mechanical strength, plasticity, electric conductivity, in terms of promoted significant, widened the application field of the Albatra metal wire rod significantly, prolonged its service life, and then met urgent need of the market to high property copper alloy wire rod.
Description
Technical field
The present invention relates to copper alloy wire fields, and in particular to a kind of high tensile yield strength copper alloy wire.
Background technique
Wire and cable is to transmit electric (magnetic) energy, information and the wire product for realizing electromagnetic energy conversion.Wires and cables industry
Although an only mating industry, in occupation of the output value of Chinese electrician trade 1/4.Its product category is numerous, application range ten
Divide extensively, is related to the industries such as electric power, building, communication, manufacture, it is all closely related with each department of national economy.Electric wire electricity
Cable is also known as " artery " and " nerve " of national economy, is conveying electric energy, transmitting information and the various motors of manufacture, instrument, instrument
Table realizes the indispensable basic equipment of electromagnetic energy conversion institute, is necessary basis in the following electrified, informationized society
Product.
The conductor material of wire and cable is many kinds of, wherein the most widely used is fine copper, with the development of society, pure
The properties of copper conductor are increasingly unable to satisfy the demand of industrial development, therefore some other members are added in people in fine copper
Copper alloy wire is made in element, to improve the performance of conducting wire.But existing copper alloy wire conductivity, in terms of
Performance be still unable to satisfy the demand in market.
The patent application of Publication No. CN107828985A discloses a kind of Cu-Cr-Zr-Ni-Al copper alloy wire, packet
Include the component of following mass percent：0.10%~0.70% Cr, 0.05%~0.50% Zr, 0.50%~2.00%
Ni, 0.10%~0.50% Al, surplus are Cu and inevitable impurity.The copper alloy wire has good tension strong
Degree, but its conductivity is lower, only 34%~48%IACS, application is restricted.
The patent application of Publication No. CN104060120A discloses a kind of preparation method of high strength copper alloy wire rod,
It is characterized in that：The each component mass percentage of the alloy is：Mg0.6-0.9%, Cr0.5-0.8%, Mn0.3-
0.4%, Sn0.6-0.8%, Si0.4-0.5%, Nb0.3-0.4%, Mo0.07-0.08%, Fe0.06-0.07%, Co0.04-
0.05%, Ce0.04-0.05% and Y0.02-0.03%, surplus are copper and inevitable nonmetal inclusion.The Albatra metal
Wire rod electric conductivity is preferable, but its mechanical strength Shortcomings, application are restricted.
Summary of the invention
The purpose of the present invention is to provide a kind of high tensile yield strength copper alloy wire, the Albatra metal comprehensive performance is excellent
Good, application performance is good.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of high tensile yield strength copper alloy wire, is made of following components by weight percentage：
Silicon：0.24~0.32%, iron：0.015~0.04%, lithium：0.13~0.22%, strontium：0.06~0.11%, scandium：
0.02~0.06%, erbium：0.03~0.09%, tellurium：0.008~0.022%, phosphorus：0.005~0.009%, surplus is copper；
The preparation method of above-mentioned copper alloy wire is as follows：
Step 1：By the weight percent ingredient, then and following stage melt is carried out：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1120~1135 DEG C, and keeps the temperature 42~50min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, with the heating speed of 30~38 DEG C/min
Rate, which is heated to 1560~1575 DEG C, melts powder sufficiently, and keeps the temperature 62~70min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1150-1165 DEG C, then flows successively through the rotation being arranged on chute
The degasification tank and porosity that graphite rotator that speed is 160~175r/min, argon pressure are 210~225KPa be 60~
The ceramic filter plate of 75ppi carries out online degasification, filtration treatment, and is finally transferred in vacuum heat-preserving furnace, later by lithium powder, tellurium
Powder, phosphorus powder, strontium powder are added in vacuum heat-preserving furnace, through magnetic agitation 2.8h, obtain copper alloy melt；
Step 2：The HZ-TJL type essence for being equivalent to copper alloy melt weight 0.46~0.52% is added into vacuum heat-preserving furnace
Agent is refined, is refined and is removed the gred, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 is obtained using with crystallizer horizontal caster casting and tandem mill into
Row continuous casting and rolling, 1120~1135 DEG C of cast temperature, horizontal casting 900~1050mm/min of speed, finish to gauge speed be 8~
9.5m/s obtains copper alloy cast bar；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Solution heat treatment：Heating temperature is 820~835 DEG C, 75~90min of soaking time；
Stress relief annealing process：Heating temperature is 555~570 DEG C, 2.4~3h of soaking time；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter, and passage drawing through drawbench
Deflection is 6~7.5%, and drawing speed is 3.5~4.2m/s；
Step 6：Ageing treatment 4.2-5h is i.e. under the conditions of temperature is 415-430 DEG C for the copper alloy wire that drawing is obtained
It can.
Further, above-mentioned copper alloy wire is made of following components by weight percentage：
Silicon：0.24%；
Iron：0.015%；
Lithium：0.13%；
Strontium：0.06%；
Scandium：0.02%；
Erbium：0.03%；
Tellurium：0.008%；
Phosphorus：0.005%；
Surplus is copper.
Further, the preparation method of above-mentioned copper alloy wire is as follows：
Step 1：Ingredient by weight percentage then and carries out following stage melt：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1120 DEG C, and keeps the temperature 50min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 30 DEG C/min
Heat melts powder sufficiently to 1560 DEG C, and keeps the temperature 70min；
Ⅲ：The copper liquid temperature that the control stage II obtains at 1150 DEG C, then flow successively through the graphite rotator being arranged on chute,
Degasification tank and ceramic filter plate carry out online degasification, filtration treatment, and are finally transferred in vacuum heat-preserving furnace, later by lithium
Powder, tellurium powder, phosphorus powder, strontium powder are added in vacuum heat-preserving furnace, through magnetic agitation 2h, obtain copper alloy melt；
Step 2：The refining agent for being equivalent to copper alloy melt weight 0.46% is added into vacuum heat-preserving furnace, is refined simultaneously
Slagging-off, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 is obtained using with crystallizer horizontal caster casting and tandem mill into
Row continuous casting and rolling, obtains copper alloy cast bar by 1120 DEG C of cast temperature；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter through drawbench；
Step 6：The copper alloy wire aging strengthening model 5h that drawing is obtained.
Further, in above-mentioned steps 1, the rotation speed of graphite rotator is 160r/min, and the argon pressure of degasification tank is
210KPa, the porosity of ceramic filter plate are 60ppi.
Preferably, in above-mentioned steps 2, HZ-TJL type refining agent that refining agent is produced by Xuzhou Central China Aluminum Co., Ltd.
Further, in above-mentioned steps 3, conticaster horizontal casting speed is 900mm/min, and finish to gauge speed is 8m/s.
Further, in above-mentioned steps 4, the heating temperature of solution heat treatment is 820 DEG C, soaking time 90min.
Further, in above-mentioned steps 4, the heating temperature of stress relief annealing process is 555 DEG C, soaking time 3h.
Further, in above-mentioned steps 5, passage drawing deformation amount is 6%, drawing speed 3.5m/s.
Further, in above-mentioned steps 6, aging temperature is set as 415 DEG C.
The present invention has following beneficial effect：The present invention passes through the ingenious selection to elemental composition contained by copper alloy wire
And its inventive improvements of preparation process, so that copper-based alloy material obtained is had following characteristic and advantage：Tensile strength and bend
Intensity height is taken, elasticity modulus is big, good toughness, good mechanical performance；Plasticity is strong, and elongation percentage is high, and processing performance is excellent；Resistance value
It is small, good conductivity, conductivity height；Electromagnet shield effect is superior, strong interference immunity；Corrosion-and high-temp-resistant, anti-softening temperature are reachable
430 DEG C or more, overall performance is excellent, can be widely applied to the power transmissions such as machinery, electronics, automobile, communication, traffic connection neck
Domain, application is good, reliable and secure, wide market.
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
The following table 1 is each embodiment copper alloy wire elemental composition accounting (%)：
Table 1
| Ingredient/percentage % | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Silicon | 0.24 | 0.28 | 0.30 | 0.32 | 0.36 |
| Iron | 0.015 | 0.03 | 0.035 | 0.04 | 0.05 |
| Lithium | 0.13 | 0.18 | 0.20 | 0.22 | 0.27 |
| Strontium | 0.06 | 0.09 | 0.10 | 0.11 | 0,14 |
| Scandium | 0.02 | 0.04 | 0.05 | 0.06 | 0.08 |
| Erbium | 0.03 | 0.05 | 0.07 | 0.09 | 0.11 |
| Tellurium | 0.008 | 0.014 | 0.018 | 0.022 | 0.03 |
| Phosphorus | 0.005 | 0.007 | 0.008 | 0.009 | 0.01 |
| Copper | Surplus | Surplus | Surplus | Surplus | Surplus |
Embodiment 1
The present embodiment is related to a kind of preparation method of high tensile yield strength copper alloy wire, substantially according to the following steps into
Row：
Step 1：By above-mentioned weight percent ingredient, then and following stage melt is carried out：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1120 DEG C, and keeps the temperature 50min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 30 DEG C/min
Heat melts powder sufficiently to 1560 DEG C, and keeps the temperature 70min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1150 DEG C, then flows successively through the rotation speed being arranged on chute
The ceramic filter plate that the degasification tank and porosity that graphite rotator, argon pressure for 160r/min are 210KPa are 60ppi into
The online degasification of row, filtration treatment, and be finally transferred in vacuum heat-preserving furnace, lithium powder, tellurium powder, phosphorus powder, strontium powder are added to later
In vacuum heat-preserving furnace, through magnetic agitation 2h, copper alloy melt is obtained；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.46% is added into vacuum heat-preserving furnace, into
Row is refined and is removed the gred, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 is obtained using with crystallizer horizontal caster casting and tandem mill into
Row continuous casting and rolling, 1120 DEG C of cast temperature, horizontal casting speed 900mm/min, finish to gauge speed is 8m/s, obtains copper alloy cast bar；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Solution heat treatment：Heating temperature is 820 DEG C, soaking time 90min；
Stress relief annealing process：Heating temperature is 555 DEG C, soaking time 3h；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter, and passage drawing through drawbench
Deflection is 6%, drawing speed 3.5m/s；
Step 6：The copper alloy wire that drawing is obtained aging strengthening model 5h under the conditions of temperature is 415 DEG C.
Embodiment 2
The present embodiment is related to a kind of preparation method of high tensile yield strength copper alloy wire, substantially according to the following steps into
Row：
Step 1：By above-mentioned weight percent ingredient, then and following stage melt is carried out：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1125 DEG C, and keeps the temperature 48min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 32 DEG C/min
Heat melts powder sufficiently to 1565 DEG C, and keeps the temperature 68min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1155 DEG C, then flows successively through the rotation speed being arranged on chute
The ceramic filter plate that the degasification tank and porosity that graphite rotator, argon pressure for 165r/min are 215KPa are 65ppi into
The online degasification of row, filtration treatment, and be finally transferred in vacuum heat-preserving furnace, lithium powder, tellurium powder, phosphorus powder, strontium powder are added to later
In vacuum heat-preserving furnace, through magnetic agitation 2.3h, copper alloy melt is obtained；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.48% is added into vacuum heat-preserving furnace, into
Row is refined and is removed the gred, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 is obtained using with crystallizer horizontal caster casting and tandem mill into
Row continuous casting and rolling, 1125 DEG C of cast temperature, horizontal casting speed 950mm/min, finish to gauge speed is 8.5m/s, obtains copper alloy casting
Item；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Solution heat treatment：Heating temperature is 825 DEG C, soaking time 85min；
Stress relief annealing process：Heating temperature is 560 DEG C, soaking time 2.8h；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter, and passage drawing through drawbench
Deflection is 6.5%, drawing speed 3.8m/s；
Step 6：The copper alloy wire that drawing is obtained aging strengthening model 4.8h under the conditions of temperature is 420 DEG C.
Embodiment 3
The present embodiment is related to a kind of preparation method of high tensile yield strength copper alloy wire, substantially according to the following steps into
Row：
Step 1：By above-mentioned weight percent ingredient, then and following stage melt is carried out：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1130 DEG C, and keeps the temperature 45min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 35 DEG C/min
Heat melts powder sufficiently to 1570 DEG C, and keeps the temperature 65min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1160 DEG C, then flows successively through the rotation speed being arranged on chute
The ceramic filter plate that the degasification tank and porosity that graphite rotator, argon pressure for 170r/min are 220KPa are 70ppi into
The online degasification of row, filtration treatment, and be finally transferred in vacuum heat-preserving furnace, lithium powder, tellurium powder, phosphorus powder, strontium powder are added to later
In vacuum heat-preserving furnace, through magnetic agitation 2.5h, copper alloy melt is obtained；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.50% is added into vacuum heat-preserving furnace, into
Row is refined and is removed the gred, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 is obtained using with crystallizer horizontal caster casting and tandem mill into
Row continuous casting and rolling, 1130 DEG C of cast temperature, horizontal casting speed 1000mm/min, finish to gauge speed is 9m/s, obtains copper alloy cast bar；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Solution heat treatment：Heating temperature is 830 DEG C, soaking time 80min；
Stress relief annealing process：Heating temperature is 565 DEG C, soaking time 2.5h；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter, and passage drawing through drawbench
Deflection is 7%, drawing speed 4m/s；
Step 6：The copper alloy wire that drawing is obtained aging strengthening model 4.5h under the conditions of temperature is 425 DEG C.
Embodiment 4
The present embodiment is related to a kind of preparation method of high tensile yield strength copper alloy wire, substantially according to the following steps into
Row：
Step 1：By above-mentioned weight percent ingredient, then and following stage melt is carried out：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1135 DEG C, and keeps the temperature 42min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 38 DEG C/min
Heat melts powder sufficiently to 1575 DEG C, and keeps the temperature 62min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1165 DEG C, then flows successively through the rotation speed being arranged on chute
The ceramic filter plate that the degasification tank and porosity that graphite rotator, argon pressure for 175r/min are 225KPa are 75ppi into
The online degasification of row, filtration treatment, and be finally transferred in vacuum heat-preserving furnace, lithium powder, tellurium powder, phosphorus powder, strontium powder are added to later
In vacuum heat-preserving furnace, through magnetic agitation 2.8h, copper alloy melt is obtained；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.52% is added into vacuum heat-preserving furnace, into
Row is refined and is removed the gred, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 is obtained using with crystallizer horizontal caster casting and tandem mill into
Row continuous casting and rolling, 1135 DEG C of cast temperature, horizontal casting speed 1050mm/min, finish to gauge speed is 9.5m/s, obtains copper alloy casting
Item；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Solution heat treatment：Heating temperature is 835 DEG C, soaking time 75min；
Stress relief annealing process：Heating temperature is 570 DEG C, soaking time 2.4h；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter, and passage drawing through drawbench
Deflection is 7.5%, drawing speed 4.2m/s；
Step 6：The copper alloy wire that drawing is obtained aging strengthening model 4.2h under the conditions of temperature is 430 DEG C.
Embodiment 5
The present embodiment is related to a kind of preparation method of high tensile yield strength copper alloy wire, substantially according to the following steps into
Row：
Step 1：By above-mentioned weight percent ingredient, then and following stage melt is carried out：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1140 DEG C, and keeps the temperature 40min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 40 DEG C/min
Heat melts powder sufficiently to 1580 DEG C, and keeps the temperature 60min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1170 DEG C, then flows successively through the rotation speed being arranged on chute
The ceramic filter plate that the degasification tank and porosity that graphite rotator, argon pressure for 180r/min are 230KPa are 80ppi into
The online degasification of row, filtration treatment, and be finally transferred in vacuum heat-preserving furnace, lithium powder, tellurium powder, phosphorus powder, strontium powder are added to later
In vacuum heat-preserving furnace, through magnetic agitation 3h, copper alloy melt is obtained；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.54% is added into vacuum heat-preserving furnace, into
Row is refined and is removed the gred, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 is obtained using with crystallizer horizontal caster casting and tandem mill into
Row continuous casting and rolling, 1140 DEG C of cast temperature, horizontal casting speed 1100mm/min, finish to gauge speed is 10m/s, obtains copper alloy casting
Item；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Solution heat treatment：Heating temperature is 840 DEG C, soaking time 70min；
Stress relief annealing process：Heating temperature is 575 DEG C, soaking time 2h；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter, and passage drawing through drawbench
Deflection is 8%, drawing speed 4.5m/s；
Step 6：The copper alloy wire that drawing is obtained aging strengthening model 4h under the conditions of temperature is 435 DEG C.
Comparative example group
"-" indicates the reduction addition of certain ingredient in the following table 2：
Table 2
Comparative example 6
This comparative example is related to a kind of preparation method of copper alloy wire, is equivalent to embodiment 1, element component content is homogeneous
Together, but step 4 cast bar heat treatment process is different in preparation method；
This comparative example step 4：Stress relief annealing process：Heating temperature is 555 DEG C, soaking time 3h.
Comparative example 7
This comparative example is related to a kind of preparation method of copper alloy wire, is equivalent to embodiment 5, element component content is homogeneous
Together, but step 6 wire rod heat aging temperature is different in preparation method；
This comparative example step 6：Aging strengthening model 4h is i.e. under the conditions of temperature is 360 DEG C for the copper alloy wire that drawing is obtained
It can.
Comparative example 8
This comparative example is related to a kind of copper alloy wire, including following components by weight percentage：Mg0.6-0.9%,
Cr0.5-0.8%, Mn0.3-0.4%, Sn0.6-0.8%, Si0.4-0.5%, Nb0.3-0.4%, Mo0.07-0.08%,
Fe0.06-0.07%, Co0.04-0.05%, Ce0.04-0.05% and Y0.02-0.03%, surplus are copper.
Performance detection
The performance indicator of the following table 3 such as is carried out to above-described embodiment 1-5 and comparative example 1-8 to detect：
Table 3
By upper table 3 it is found that the selection setting of copper alloy wire elemental composition and content of the invention is worthy of careful study, have
Synergistic effect, only melt by its ingredient, with when preparation method at technological package scheme, could be made out tensile strength >=
682MPa；Yield strength >=575MPa；Yield strength >=130MPa；Elasticity modulus >=130GPa；Elongation percentage >=17.6%；Conductance
The copper alloy wire of rate >=84.8%IACS and electromagnet shield effect (detection frequency 1.5GHz) >=114dB；
Therefore, copper alloy wire overall performance of the invention is promoted significant compared with prior art, has widened this kind of copper significantly
The application field of alloy wire, prolongs its service life, and then meets urgent need of the market to high property copper alloy wire rod.
In conjunction with the beneficial effect of the present invention, applicant explains elemental composition contained in copper alloy of the present invention as follows
It states：
(1) silicon, iron：Feature microalloy element of both elemental compositions as copper, solid solubility in copper than relatively limited,
Solid solubility fierce variation with temperature change, when beginning to decline after temperature is completed from alloy crystallization, the two is in copper
Solid solubility also start to reduce, will be precipitated from solid phase with copper silicon compound, copper and iron compound form, when both element solid solutions
After in copper, it will play different effects to copper alloy, reach the effect of solution strengthening；(1) silicon：Improve the tension of copper alloy
Intensity and thermal stability, but the content of silicon is not easy otherwise to will lead to electrical property more than 0.36% and be decreased obviously, and casting rod easily produces
The problem of giving birth to defect, or even there is also fracture in process, therefore, the content of silicon is matched in copper alloy ingredient of the invention
Optimum interval is 0.24~0.36% than in, exceeds or the insufficient beneficial effects of the present invention that will lead to cannot be real well
It is existing.(2) iron：The deformation of creep for inhibiting copper alloy, improves copper-based structural stability, tensile strength, yield limit and heat resistance
Can, and can also improve alloy plasticity and anti-electromagnet shield effect；But the content of iron is not easy otherwise to will lead to more than 0.05%
The weakening of copper-based electrical property is more obvious, for the use meeting in terms of for electric wire and cable conductor, cable accessory and appliance field
Have an impact, therefore, the content of iron in copper alloy composition proportion of the invention optimum interval be 0.015~0.05%, exceed or
Person's deficiency will lead to beneficial effects of the present invention and cannot realize well.
(2) lithium：As the feature addition element of complex compound, lithium can form Cu in copper alloy meltxLiyDispersivity
High-Temperature Strengthening phase, to improve the hardness of copper alloy, corrosion resistance and toughness；But the content of lithium is not easy more than 0.27%,
Otherwise the strength character weakening that will lead to Cu alloy material is more obvious；And the addition of a small amount of elemental lithium can improve the electricity of copper alloy
Therefore performance finds through many experiments, the content of lithium optimum interval in copper alloy composition proportion of the invention is 0.13~
0.27%, exceed or deficiency will lead to beneficial effects of the present invention and cannot realize well.
(3) strontium：As the feature addition element of complex compound, a variety of strontium copper compounds formed with copper can be right
Copper alloy plays the role of High-Temperature Strengthening, and can improve the high temperature creep property of material.In addition, had been surprisingly found that through test, strontium
The problem of being added, capable of preventing copper alloy from causing high temperature to crack in casting avoids the bad of metalwork occur in casting, reduces
Process costs improve yield rate.But the content of strontium is not easy more than 0.14%, and the corrosion resisting property that otherwise will lead to Cu alloy material is cut
It is weak more serious；Therefore, the content of lithium optimum interval in copper alloy composition proportion of the invention is 0.06~0.14%, is exceeded
Or deficiency will lead to beneficial effects of the present invention and cannot realize well.
(4) scandium, erbium：Two kinds are rare earth element, can form infusibility active metallic compound, and these high-melting-points with copper respectively
Active metallic compound energy Dispersed precipitate in be in netted or skeletal like intergranular and interdendritic, and with Copper substrate be firmly combined,
Play the role of reinforcing and stablizes crystal boundary.Meanwhile the elements such as elemental iron, silicon in molten metal can be also neutralized, form high-melting-point
Compound or be uniformly distributed them out of interdendritic entire texture, eliminate arborescent structure, reduce crystallization process
Degree of supercooling, reduces segregation, and the solidified structure of refining alloy has the function of improving copper alloy comprehensive performance；But it is above two at
Dividing can only exist in copper alloy on a small quantity；Therefore, research obtains, the content of scandium is optimal in copper alloy composition proportion of the invention
Section is 0.02~0.08%, and the content of scandium optimum interval in copper alloy composition proportion of the invention is 0.03~0.11%,
The two is any to be exceeded or insufficient will lead to beneficial effects of the present invention and cannot realize well.
(5) tellurium：As semimetallic elements, physical property is more special, can preferably improve in being added to copper alloy
The arc resistant ability and processing performance of copper-based material, and the addition of a small amount of tellurium, can significantly improve the electric conductivity of copper alloy；But
The content of tellurium is not easy otherwise to will lead to the intensity of Cu alloy material more than 0.03% and toughness weakening is more obvious；Therefore, tellurium
Content optimum interval in copper alloy composition proportion of the invention is 0.008~0.03%, exceeds or deficiency will lead to this
Advantageous effect of the invention cannot be realized well.
(6) phosphorus：Phosphorus is the effective and at low cost deoxidier of copper alloy, and copper-based melt can be improved in the presence of trace amounts of phosphorus
Mobility improves welding performance, the corrosion resisting property of Cu alloy material, improves anti-softening degree；But the content of phosphorus is not easy
0.01%, the electric conductivity weakening that otherwise will lead to Cu alloy material is more obvious；Therefore, the content of phosphorus is closed in copper of the invention
Optimum interval is 0.005~0.01% in golden composition proportion, exceed or it is insufficient will lead to beneficial effects of the present invention cannot
It realizes well.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high tensile yield strength copper alloy wire, which is characterized in that be made of following components by weight percentage：
Silicon：0.24~0.32%, iron：0.015~0.04%, lithium：0.13~0.22%, strontium：0.06~0.11%, scandium：0.02
~0.06%, erbium：0.03~0.09%, tellurium：0.008~0.022%, phosphorus：0.005~0.009%, surplus is copper；
The preparation method of the copper alloy wire is as follows：
Step 1：By the weight percent ingredient, then and following stage melt is carried out：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1120~1135 DEG C, and keeps the temperature 42~50min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 30~38 DEG C/min
Heat melts powder sufficiently to 1560~1575 DEG C, and keeps the temperature 62~70min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1150-1165 DEG C, then flows successively through the rotation speed being arranged on chute
The degasification tank and porosity that graphite rotator, argon pressure for 160~175r/min are 210~225KPa are 60~75ppi
Ceramic filter plate carry out online degasification, filtration treatment, and be finally transferred in vacuum heat-preserving furnace, later by lithium powder, tellurium powder, phosphorus
Powder, strontium powder are added in vacuum heat-preserving furnace, through magnetic agitation 2.8h, obtain copper alloy melt；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.46~0.52% is added into vacuum heat-preserving furnace,
It is refined and is removed the gred, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 obtains is connected using the horizontal caster casting with crystallizer and tandem mill
Tandem rolling is cast, 1120~1135 DEG C of cast temperature, horizontal casting 900~1050mm/min of speed, finish to gauge speed is 8~9.5m/s,
Obtain copper alloy cast bar；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Solution heat treatment：Heating temperature is 820~835 DEG C, 75~90min of soaking time；
Stress relief annealing process：Heating temperature is 555~570 DEG C, 2.4~3h of soaking time；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter, and passage drawing deformation through drawbench
Amount is 6~7.5%, and drawing speed is 3.5~4.2m/s；
Step 6：The copper alloy wire that drawing is obtained ageing treatment 4.2-5h under the conditions of temperature is 415-430 DEG C.
2. a kind of high tensile yield strength copper alloy wire according to claim 1, which is characterized in that by it is following by weight
Percentages at being grouped as：
Silicon：0.24%；
Iron：0.015%；
Lithium：0.13%；
Strontium：0.06%；
Scandium：0.02%；
Erbium：0.03%；
Tellurium：0.008%；
Phosphorus：0.005%；
Surplus is copper.
3. a kind of high tensile yield strength copper alloy wire according to claim 2, which is characterized in that the copper alloy wire
The preparation method of material is as follows：
Step 1：Ingredient by weight percentage then and carries out following stage melt：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1120 DEG C, and keeps the temperature 50min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, are heated to the heating rate of 30 DEG C/min
1560 DEG C melt powder sufficiently, and keep the temperature 70min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1150 DEG C, then flows successively through the graphite rotator being arranged on chute, degasification
Case and ceramic filter plate carry out online degasification, filtration treatment, and are finally transferred in vacuum heat-preserving furnace, later by lithium powder, tellurium
Powder, phosphorus powder, strontium powder are added in vacuum heat-preserving furnace, through magnetic agitation 2h, obtain copper alloy melt；
Step 2：The refining agent for being equivalent to copper alloy melt weight 0.46% is added into vacuum heat-preserving furnace, is refined and is removed
Slag, the aluminium alloy melt after being refined；
Step 3：The aluminium alloy melt that step 2 obtains is connected using the horizontal caster casting with crystallizer and tandem mill
Tandem rolling is cast, 1120 DEG C of cast temperature, obtains copper alloy cast bar；
Step 4：Cast bar is carried out successively to carry out solution heat treatment and stress relief annealing process；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter through drawbench；
Step 6：The copper alloy wire aging strengthening model 5h that drawing is obtained.
4. a kind of high tensile yield strength copper alloy wire according to claim 3, which is characterized in that described in step 1
The rotation speed of graphite rotator is 160r/min, and the argon pressure of degasification tank is 210KPa, and the porosity of ceramic filter plate is
60ppi。
5. a kind of high tensile yield strength copper alloy wire according to claim 4, which is characterized in that described in step 2
The HZ-TJL type refining agent that refining agent is produced by Xuzhou Central China Aluminum Co., Ltd.
6. a kind of high tensile yield strength copper alloy wire according to claim 5, which is characterized in that described in step 3
Conticaster horizontal casting speed is 900mm/min, and finish to gauge speed is 8m/s.
7. a kind of high tensile yield strength copper alloy wire according to claim 6, which is characterized in that described in step 4
The heating temperature of solution heat treatment is 820 DEG C, soaking time 90min.
8. a kind of high tensile yield strength copper alloy wire according to claim 7, which is characterized in that described in step 4
The heating temperature of stress relief annealing process is 555 DEG C, soaking time 3h.
9. a kind of high tensile yield strength copper alloy wire according to claim 8, which is characterized in that in step 5, passage
Drawing deformation amount is 6%, drawing speed 3.5m/s.
10. a kind of high tensile yield strength copper alloy wire according to claim 9, which is characterized in that in step 6, institute
Stating aging temperature is 415 DEG C.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11181560A (en) * | 1997-09-12 | 1999-07-06 | Fisk Alloy Wire Inc | Copper alloy electric wire, its production and copper alloy cable |
| CN101489702A (en) * | 2006-06-01 | 2009-07-22 | 古河电气工业株式会社 | Method of producing a copper alloy wire rod and copper alloy wire rod |
| CN107419132A (en) * | 2017-06-22 | 2017-12-01 | 安徽晋源铜业有限公司 | A kind of lead frame corson alloy material and preparation method thereof |
| CN108220665A (en) * | 2018-01-09 | 2018-06-29 | 北京有色金属研究总院 | A kind of railway power through track rare-earth copper alloy line and preparation method thereof |
-
2018
- 2018-07-31 CN CN201810856506.0A patent/CN108913939A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11181560A (en) * | 1997-09-12 | 1999-07-06 | Fisk Alloy Wire Inc | Copper alloy electric wire, its production and copper alloy cable |
| CN101489702A (en) * | 2006-06-01 | 2009-07-22 | 古河电气工业株式会社 | Method of producing a copper alloy wire rod and copper alloy wire rod |
| CN107419132A (en) * | 2017-06-22 | 2017-12-01 | 安徽晋源铜业有限公司 | A kind of lead frame corson alloy material and preparation method thereof |
| CN108220665A (en) * | 2018-01-09 | 2018-06-29 | 北京有色金属研究总院 | A kind of railway power through track rare-earth copper alloy line and preparation method thereof |
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Application publication date: 20181130 |