CN108866384A - A kind of preparation method of copper alloy with high strength and high conductivity wire rod - Google Patents
A kind of preparation method of copper alloy with high strength and high conductivity wire rod Download PDFInfo
- Publication number
- CN108866384A CN108866384A CN201810855786.3A CN201810855786A CN108866384A CN 108866384 A CN108866384 A CN 108866384A CN 201810855786 A CN201810855786 A CN 201810855786A CN 108866384 A CN108866384 A CN 108866384A
- Authority
- CN
- China
- Prior art keywords
- copper alloy
- powder
- temperature
- copper
- wire rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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 methods of copper alloy with high strength and high conductivity wire rod, are related to copper alloy wire technical field, include the following steps：Melting, refining, continuous casting and rolling, solid solution and annealing, drawing, aging strengthening model.Copper alloy wire of the invention prepares convenient, finished product copper alloy wire obtained mechanical strength, plasticity, electric conductivity, in terms of promoted it is significant, the application field of the Albatra metal wire rod has been widened significantly, it prolongs its service life, and then meets 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 preparation method of copper alloy with high strength and high conductivity wire rod.
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 preparation method of copper alloy with high strength and high conductivity wire rod, the Albatra metal is comprehensive
Can be excellent, application performance is good.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of preparation method of copper alloy with high strength and high conductivity wire rod, follows the steps below：
Step 1：By following weight percent ingredient：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；
Then and carry out following stage melt：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1120~1140 DEG C, and keeps the temperature 40~50min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, with the heating speed of 30~40 DEG C/min
Rate, which is heated to 1560~1580 DEG C, melts powder sufficiently, and keeps the temperature 60~70min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1150-1170 DEG C, then flows successively through the rotation being arranged on chute
The degasification tank and porosity that graphite rotator that speed is 160~180r/min, argon pressure are 210~230KPa be 60~
The ceramic filter plate of 80ppi 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 2~3h of magnetic agitation, obtain copper alloy melt；
Step 2：The HZ-TJL type essence for being equivalent to copper alloy melt weight 0.46~0.54% 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, 1120~1140 DEG C of cast temperature, horizontal casting 900~1100mm/min of speed, finish to gauge speed is 8~10m/
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 820~840 DEG C, 70~90min of soaking time；
Stress relief annealing process：Heating temperature is 555~575 DEG C, 2~3h 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 6~8%, and drawing speed is 3.5~4.5m/s；
Step 6：The copper alloy wire that drawing is obtained ageing treatment 4-5h under the conditions of temperature is 415-435 DEG C.
Further, the preparation method of above-mentioned copper alloy wire follows the steps below：
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 1125~1135 DEG C, and keeps the temperature 42~48min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, with the heating speed of 32~38 DEG C/min
Rate, which is heated to 1565~1575 DEG C, melts powder sufficiently, and keeps the temperature 62~68min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1155-1165 DEG C, then flows successively through the rotation being arranged on chute
The degasification tank and porosity that graphite rotator that speed is 165~175r/min, argon pressure are 215~225KPa be 65~
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 2.3~2.8h of magnetic agitation, obtain copper alloy melt；
Step 2：The HZ-TJL type essence for being equivalent to copper alloy melt weight 0.48~0.52% 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, cast temperature are 1125~1135 DEG C, and horizontal casting speed is 950~1050mm/min, and finish to gauge speed is 8.5
~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 825~835 DEG C, 75~85min of soaking time；
Stress relief annealing process：Heating temperature is 560~570 DEG C, 2.4~2.8h 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 6.5~7.5%, and drawing speed is 3.8~4.2m/s；
Step 6：Ageing treatment 4.2-4.8h is i.e. under the conditions of temperature is 420-430 DEG C for the copper alloy wire that drawing is obtained
It can.
Further, the preparation method of above-mentioned copper alloy wire follows the steps below：
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 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 at 1160 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 2.5h, obtain copper alloy melt；
Step 2：HZ-TJL type refining agent is added into vacuum heat-preserving furnace to be refined and removed the gred, the aluminium after being refined closes
Golden melt；
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, cast temperature are 1130 DEG C, horizontal casting speed 1000mm/min, and finish to gauge speed is 9m/s, obtain copper alloy casting
Item；
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 that drawing is obtained is through aging strengthening model 4.5h.
Further, above-mentioned copper alloy wire carries out ingredient preparation according to following components by weight percentage：
Silicon：0.30%；
Iron：0.035%；
Lithium：0.20%；
Strontium：0.10%；
Scandium：0.05%；
Erbium：0.07%；
Tellurium：0.018%；
Phosphorus：0.008%；
Surplus is copper.
Further, in above-mentioned steps 1, the rotation speed of graphite rotator is 170r/min, and the argon pressure of degasification tank is
220KPa, the porosity of ceramic filter plate are 70ppi.
Further, in above-mentioned steps 2, the additional amount of HZ-TJL type refining agent is copper alloy melt weight 0.50%.
Further, in above-mentioned steps 4, solution heat treatment heating temperature is 830 DEG C, soaking time 80min.
Further, in above-mentioned steps 4, the heating temperature of stress relief annealing process is 565 DEG C, soaking time 2.5h.
Further, in above-mentioned steps 5, passage drawing deformation amount is 7%, drawing speed 4m/s.
Further, in above-mentioned steps 6, aging strengthening model temperature is 425 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 copper alloy with high strength and high conductivity wire rod, substantially follows the steps below：
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 copper alloy with high strength and high conductivity wire rod, substantially follows the steps below：
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 copper alloy with high strength and high conductivity wire rod, substantially follows the steps below：
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 copper alloy with high strength and high conductivity wire rod, substantially follows the steps below：
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 copper alloy with high strength and high conductivity wire rod, substantially follows the steps below：
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
| Ingredient/percentage % | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 |
| Silicon | 0.24 | 0.28 | 0.30 | 0.32 | 0.36 |
| Iron | 0.015 | 0.03 | 0.035 | 0.04 | 0.05 |
| Lithium | - | - | - | - | - |
| Strontium | 0.06 | - | - | - | - |
| Scandium | 0.02 | 0.04 | - | - | - |
| Erbium | 0.03 | 0.05 | 0.07 | - | - |
| Tellurium | 0.008 | 0.014 | 0.018 | 0.022 | - |
| Phosphorus | 0.005 | 0.007 | 0.008 | 0.009 | 0.01 |
| Copper | Surplus | Surplus | Surplus | Surplus | Surplus |
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 preparation method of copper alloy with high strength and high conductivity wire rod, which is characterized in that follow the steps below：
Step 1：By following weight percent ingredient：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；
Then and carry out following stage melt：
Ⅰ：Copper billet is heated into fusing in the smelting furnace that temperature is 1120~1140 DEG C, and keeps the temperature 40~50min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 30~40 DEG C/min
Heat melts powder sufficiently to 1560~1580 DEG C, and keeps the temperature 60~70min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1150-1170 DEG C, then flows successively through the rotation speed being arranged on chute
The degasification tank and porosity that graphite rotator, argon pressure for 160~180r/min are 210~230KPa are 60~80ppi
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 2~3h of magnetic agitation, obtain copper alloy melt；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.46~0.54% 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, 1120~1140 DEG C of cast temperature, horizontal casting 900~1100mm/min of speed, finish to gauge speed is 8~10m/s, is obtained
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 820~840 DEG C, 70~90min of soaking time；
Stress relief annealing process：Heating temperature is 555~575 DEG C, 2~3h 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 6~8%, and drawing speed is 3.5~4.5m/s；
Step 6：The copper alloy wire that drawing is obtained ageing treatment 4-5h under the conditions of temperature is 415-435 DEG C.
2. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 1, which is characterized in that according to following
Step carries out：
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 1125~1135 DEG C, and keeps the temperature 42~48min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, added with the heating rate of 32~38 DEG C/min
Heat melts powder sufficiently to 1565~1575 DEG C, and keeps the temperature 62~68min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1155-1165 DEG C, then flows successively through the rotation speed being arranged on chute
The degasification tank and porosity that graphite rotator, argon pressure for 165~175r/min are 215~225KPa are 65~75ppi
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 2.3~2.8h of magnetic agitation, obtain copper alloy melt；
Step 2：The HZ-TJL type refining agent for being equivalent to copper alloy melt weight 0.48~0.52% 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
Cast tandem rolling, cast temperature be 1125~1135 DEG C, horizontal casting speed be 950~1050mm/min, finish to gauge speed be 8.5~
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 825~835 DEG C, 75~85min of soaking time；
Stress relief annealing process：Heating temperature is 560~570 DEG C, 2.4~2.8h 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 6.5~7.5%, and drawing speed is 3.8~4.2m/s；
Step 6：The copper alloy wire that drawing is obtained ageing treatment 4.2-4.8h under the conditions of temperature is 420-430 DEG C.
3. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 1, which is characterized in that according to following
Step carries out：
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 1130 DEG C, and keeps the temperature 45min；
Ⅱ：Ferrosilicon powder, scandium powder, erbium powder are added to smelting furnace, under stirring condition, are heated to the heating rate of 35 DEG C/min
1570 DEG C melt powder sufficiently, and keep the temperature 65min；
Ⅲ：The copper liquid temperature that the control stage II obtains is at 1160 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 2.5h, obtain copper alloy melt；
Step 2：HZ-TJL type refining agent is added into vacuum heat-preserving furnace to be refined and removed the gred, the aluminium alloy after being refined is molten
Body；
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, cast temperature is 1130 DEG C, horizontal casting speed 1000mm/min, and 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；
Step 5：Step 4 treated copper alloy cast bar is drawn to required format diameter through drawbench；
Step 6：The copper alloy wire that drawing is obtained is through aging strengthening model 4.5h.
4. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 3, which is characterized in that the copper closes
Gold thread material carries out ingredient preparation according to following components by weight percentage：
Silicon：0.30%；
Iron：0.035%；
Lithium：0.20%；
Strontium：0.10%；
Scandium：0.05%；
Erbium：0.07%；
Tellurium：0.018%；
Phosphorus：0.008%；
Surplus is copper.
5. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 4, which is characterized in that in step 1,
The rotation speed of the graphite rotator is 170r/min, and the argon pressure of degasification tank is 220KPa, the porosity of ceramic filter plate
For 70ppi.
6. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 5, which is characterized in that in step 2,
The additional amount of the HZ-TJL type refining agent is copper alloy melt weight 0.50%.
7. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 6, which is characterized in that in step 4,
The solution heat treatment heating temperature is 830 DEG C, soaking time 80min.
8. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 7, which is characterized in that in step 4,
The heating temperature of the stress relief annealing process is 565 DEG C, soaking time 2.5h.
9. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 8, which is characterized in that in step 5,
Passage drawing deformation amount is 7%, drawing speed 4m/s.
10. a kind of preparation method of copper alloy with high strength and high conductivity wire rod according to claim 9, which is characterized in that step 6
In, the aging strengthening model temperature is 425 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855786.3A CN108866384A (en) | 2018-07-31 | 2018-07-31 | A kind of preparation method of copper alloy with high strength and high conductivity wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855786.3A CN108866384A (en) | 2018-07-31 | 2018-07-31 | A kind of preparation method of copper alloy with high strength and high conductivity wire rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108866384A true CN108866384A (en) | 2018-11-23 |
Family
ID=64306706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810855786.3A Withdrawn CN108866384A (en) | 2018-07-31 | 2018-07-31 | A kind of preparation method of copper alloy with high strength and high conductivity wire rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108866384A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5427968B1 (en) * | 2013-03-29 | 2014-02-26 | Ｊｘ日鉱日石金属株式会社 | Copper alloy plate and heat dissipating electronic component including the same |
| CN104928520A (en) * | 2014-12-31 | 2015-09-23 | 上海方奕企业发展有限公司 | High-conductivity, arc-resistance and free-cutting leadfree tellurium copper alloy material |
| JP2015183263A (en) * | 2014-03-25 | 2015-10-22 | Ｄｏｗａメタルテック株式会社 | Cu-Ni-Co-Si-BASED COPPER ALLOY SHEET MATERIAL, MANUFACTURING METHOD THEREOF AND ELECTRIFICATION COMPONENT |
| 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 CN201810855786.3A patent/CN108866384A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5427968B1 (en) * | 2013-03-29 | 2014-02-26 | Ｊｘ日鉱日石金属株式会社 | Copper alloy plate and heat dissipating electronic component including the same |
| JP2015183263A (en) * | 2014-03-25 | 2015-10-22 | Ｄｏｗａメタルテック株式会社 | Cu-Ni-Co-Si-BASED COPPER ALLOY SHEET MATERIAL, MANUFACTURING METHOD THEREOF AND ELECTRIFICATION COMPONENT |
| CN104928520A (en) * | 2014-12-31 | 2015-09-23 | 上海方奕企业发展有限公司 | High-conductivity, arc-resistance and free-cutting leadfree tellurium copper alloy material |
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| 上海市电子电器技术协会: "《常用电工材料手册》", 31 October 1988 * |
| 张建军 等: "《机械工程材料》", 31 March 2015, 西南师范大学出版社 * |
| 李隆盛: "《高等学校教材 铸造合金及熔炼》", 3 November 1989, 机械工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101709400B (en) | Cu-Fe in-situ composite with added boron, silver and rare earth elements and preparation method thereof | |
| CN104946936B (en) | A kind of aerial condutor high conductivity rare earth duralumin monofilament material | |
| CN102021442B (en) | Ultra-fine aluminum alloy wire and preparation method thereof | |
| CN101525709B (en) | High-elongation aluminum alloy material and preparation method thereof | |
| CN105063433B (en) | A kind of high conductivity and heat heat resistance aluminium alloy monofilament and preparation method thereof | |
| CN102925746B (en) | High-performance Cu-Ni-Si system copper alloy, and preparation method and processing method thereof | |
| CN101914708B (en) | Al-Fe-Cu alloy material and preparation method thereof | |
| CN101886198A (en) | High-conductivity aluminum alloy material for cable and preparation method thereof | |
| CN103952605B (en) | A kind of preparation method of middle strength aluminium alloy monofilament | |
| CN104975211B (en) | Strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type | |
| CN103343302B (en) | A kind of Carbon fiber composite aluminum conductor and preparation method thereof | |
| CN101880799A (en) | Al-Fe-Zn-Mg rare earth alloy wire and preparation method thereof | |
| CN108559874B (en) | High-strength high-conductivity heat-resistant aluminum alloy conductor and preparation method thereof | |
| CN108315581B (en) | High-strength high-softening-temperature low beryllium copper alloy and preparation method thereof | |
| CN100491558C (en) | High-performance yttrium-base heavy rare earth copper alloy die material and preparation method thereof | |
| CN106119616A (en) | A kind of high tenacity aluminium alloy automobile line and preparation method | |
| CN109234553A (en) | A kind of Al-Zr-Sc-B heat-resisting alloy monofilament and preparation method thereof | |
| CN111793758A (en) | High-conductivity heat-resistant aluminum alloy monofilament for overhead conductor and preparation method thereof | |
| CN105369077A (en) | Aluminum alloy conductor material and preparation method thereof | |
| CN104911408A (en) | Hard aluminum conductor filament and preparation method thereof | |
| CN106399751A (en) | Preparing method for high-strength and high-conductivity copper alloy | |
| CN103421980B (en) | A kind of high-strength elastic brass and preparation method thereof | |
| CN108281213B (en) | Preparation method of rare earth aluminum alloy cable for railway and conductor | |
| CN108950295A (en) | A kind of shield type copper alloy wire and its application | |
| CN108823464B (en) | Copper alloy material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |