CN103382535B - A kind of high-strength, high connductivity, deep drawing quality copper alloy and preparation method thereof - Google Patents
A kind of high-strength, high connductivity, deep drawing quality copper alloy and preparation method thereof Download PDFInfo
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Abstract
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.5 ~ 1.5%, the zirconium of 0.3 ~ 0.5%, the nickel of 0.1 ~ 0.3%, the titanium of 0.2 ~ 0.5%, the manganese of 0.2 ~ 0.4%, surplus is copper and inevitable impurity element.A preparation method for high-strength, high connductivity, deep drawing quality copper alloy, comprises melting, the step of mold, the step of casting forging, the step of solution treatment, the step of drawing deformation and ageing treatment and cold roller and deformed step.The present invention is by limiting composition and the ratio thereof of alloy, make each composition comprehensive action, significantly improve the over-all properties of alloy material, its tensile strength > 620MPa, hardness > 180HV, unit elongation > 10%, electric conductivity > 80%IACS, softening temperature > 520 DEG C, can meet the electronics industry materials such as lead frame preferably to the requirement of copper alloy performance.
Description
Technical field
The present invention relates to a kind of copper base alloy and preparation method thereof, particularly relate to a kind of high-strength, high connductivity, deep drawing quality copper alloy and preparation method thereof, belong to Cu alloy material technical field.
Background technology
Cu-Cr-Zr system alloy is the widely used high-strength high-conductivity alloy of a class, is widely used in the fields such as large-scale integrated circuit lead frame, electric car and electric locomotive osculatory, electrode metal at present.The principal feature of such alloy has higher specific conductivity, but its intensity is generally on the low side.Lead frame is the main raw of semiconductor components and devices and integrated antenna package, and play the effect of supporting chip, transmission information and heat radiation, therefore lead frame occupies epochmaking status in integrated circuit (IC)-components and each assembling process.Lead frame copper alloy main at present has the alloys such as Cu-Fe-P, Cu-Ni-Si, Cu-Cr-Zr.Along with the fast development of electronic industry, also more and more higher to the requirement of the performance such as intensity, specific conductivity, welding, etching of traditional copper base electrical material, therefore, in the urgent need to developing a kind of novel high-strength, high guide wire frame material copper alloy.
The disclosed high strength high conducting copper-rare-earth alloy material of Chinese patent on January 31st, 2007 (publication number: CN 1905082A) and preparation technology thereof, pure metal Cr particle is directly added during its preparation method founding, its tensile strength is 470 ~ 510MPa, electric conductivity is 88 ~ 91%IACS, though electric conductivity is higher, but its intensity is lower.Chinese patent on May 14th, 2003 (notification number: CN 1254554 C) is disclosed a kind of adds trace alloying element La, Zn and Fe(or Co on traditional C u-Cr-Zr alloy basis) and the copper alloy of Ti, though tensile strength can reach 608.2 ~ 641.4MPa, but its specific conductivity is only 65 ~ 70%IACS, unit elongation only >=5%.The modification method for preparing of Chinese patent on November 19th, 2008 (publication number: CN 101733621 A) disclosed Cu-Cr-Zr system sheet alloy, such alloy adds the alloying elements such as Ni, Si, Ti when founding, this strength of alloy >=570MPa, but its unit elongation not high be 6 ~ 9%.The patent (publication number: CN 101928864 A) that Japan applies on December 29th, 2010 in China relates to a kind of copper alloy simultaneously keeping intensity and excellent in bending workability in maintenance electric conductivity and stress retentivity, wherein the content of Cr, Zr, Sn is respectively 0.1 ~ 0.4%, 0.02 ~ 0.2%, 0.01 ~ 0.3%, electric conductivity reaches more than 80%IACS, but its low strength, is only 550MPa.There is disclosed in the patent (publication number: CN 102918172 A) that Japan applies on December 7th, 2010 in China copper alloy and the manufacture method thereof of high strength and highly conc, add the alloying elements such as Cr, Si, Sn, Zn, Mg, its electric conductivity is higher, reach more than 80%IACS, but its intensity and lower hardness.
Summary of the invention
For solving the technical problem that copper base alloy over-all properties is poor in prior art, the invention provides and a kind of there is high property copper alloy of desirable hardness, electric conductivity, softening temperature, tensile strength and yield strength and preparation method thereof.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.5 ~ 1.5%, the zirconium of 0.3 ~ 0.5%, the nickel of 0.1 ~ 0.3%, the titanium of 0.2 ~ 0.5%, the manganese of 0.2 ~ 0.4%, surplus is copper and inevitable impurity element.
A preparation method for high-strength, high connductivity, deep drawing quality copper alloy, comprises the following steps:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10-2Pa, then being filled with pressure in nitrogen to stove is 0.05MPa, controlling smelting temperature is 1200 ~ 1300 DEG C, mold is injected after melting, form ingot casting, described pouring temperature controls at 1100 ~ 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 800 ~ 950 DEG C, is incubated 1 ~ 3 hour, then forging is processed to form bar, forging deformation amount 60 ~ 80%, obtains excellent base;
(3) solution treatment: the excellent base of step (2) is loaded in heat treatment furnace, is incubated 1 ~ 2 hour at 850 ~ 950 DEG C, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 20 ~ 40%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out ageing treatment, and aging temp is 350 ~ 500 DEG C, and be incubated 2 ~ 10 hours, carry out cold roller and deformed afterwards, deflection is 20 ~ 80%.
Described ageing treatment and cold roller and deformed method are: first at aging temp 400 ~ 500 DEG C, be incubated 2 ~ 4 hours, it is cold roller and deformed to carry out first time, deflection is 50 ~ 80%, then at aging temp 450 ~ 500 DEG C, 2 ~ 4 hours are incubated, carry out second time more cold roller and deformed, deflection is 60 ~ 80%.
Described ageing treatment and cold roller and deformed method are: first at aging temp 480 DEG C, be incubated 2 hours, it is cold roller and deformed to carry out first time, deflection is 40%, 2 ~ 4 hours are incubated afterwards at aging temp 450 DEG C, carry out second time cold roller and deformed, deflection is 40 ~ 60%, then at aging temp 450 DEG C, is incubated 4 hours, it is cold roller and deformed to carry out third time again, and deflection is 60%.
Beneficial effect of the present invention:
(1), copper-based alloy material of the present invention, be primarily characterized in that and add nickel, titanium, manganese on the basis of traditional C u-Cr-Zr alloy.Adding of nickel can put forward heavy alloyed machining property well; Adding of manganese can put forward heavy alloyed tensile strength, makes alloy have excellent cold and hot working performance simultaneously, in alloy drawing and cold-rolled process, particularly prevent cracking; Adding of titanium can fully carry heavy alloyed unit elongation, puies forward heavy alloyed anti-softening temperature.Because Ni, Mn add-on too much also can affect the electroconductibility of alloy, so the add-on of Ni, Mn is 0.1 ~ 0.3% and 0.2 ~ 0.4%.The present invention is by limiting composition and the ratio thereof of alloy, make each composition comprehensive action, significantly improve the over-all properties of alloy material, its tensile strength > 620MPa, hardness > 180HV, unit elongation > 10%, electric conductivity > 80%IACS, softening temperature > 520 DEG C, can meet the electronics industry materials such as lead frame preferably to the requirement of copper alloy performance.
(2), in preparation process, repeatedly ageing treatment and repeatedly cold roller and deformed working method, can improve the nucleation site of precipitated phase, and precipitated phase is separated out more, more can put forward heavy alloyed intensity and electric conductivity.
(3), alloy of the present invention is by forge hot, solution treatment, cold roller and deformed, interrupted aging process, the technique such as cold roller and deformed, improve the preparation efficiency of alloy, and further increase alloy property, tensile strength can reach 627 more than MPa, hardness can reach more than 187HV, and unit elongation can reach 17%.
Accompanying drawing explanation
Fig. 1 is the alloy property figure of each embodiment in the present invention.
Embodiment
Following embodiment is only described in further detail the present invention, but does not form any limitation of the invention.
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.5 ~ 1.5%, the zirconium of 0.3 ~ 0.5%, the nickel of 0.1 ~ 0.3%, the titanium of 0.2 ~ 0.5%, the manganese of 0.2 ~ 0.4%, surplus is copper and inevitable impurity element.
A preparation method for high-strength, high connductivity, deep drawing quality copper alloy, comprises the following steps:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1200 ~ 1300 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1100 ~ 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 800 ~ 950 DEG C, is incubated 1 ~ 3 hour, then forging is processed to form bar, forging deformation amount 60 ~ 80%, obtains excellent base;
(3) solution treatment: the excellent base of step (2) is loaded in heat treatment furnace, is incubated 1 ~ 2 hour at 850 ~ 950 DEG C, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 20 ~ 40%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out ageing treatment, and aging temp is 350 ~ 500 DEG C, and be incubated 2 ~ 10 hours, carry out cold roller and deformed afterwards, deflection is 20 ~ 80%.
Described ageing treatment and cold roller and deformed method are: first at aging temp 400 ~ 500 DEG C, be incubated 2 ~ 4 hours, it is cold roller and deformed to carry out first time, deflection is 50 ~ 80%, then at aging temp 450 ~ 500 DEG C, 2 ~ 4 hours are incubated, carry out second time more cold roller and deformed, deflection is 60 ~ 80%.
Described ageing treatment and cold roller and deformed method are: first at aging temp 480 DEG C, be incubated 2 hours, it is cold roller and deformed to carry out first time, deflection is 40%, 2 ~ 4 hours are incubated afterwards at aging temp 450 DEG C, carry out second time cold roller and deformed, deflection is 40 ~ 60%, then at aging temp 450 DEG C, is incubated 4 hours, it is cold roller and deformed to carry out third time again, and deflection is 60%.
Embodiment 1
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.5%, the zirconium of 0.3%, the nickel of 0.1%, the titanium of 0.5%, the manganese of 0.2%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1200 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1100 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 850 DEG C, is incubated 1 hour, then forging is processed to form bar, forging deformation amount 80%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 850 DEG C of insulations 1 hour, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 30%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out interrupted aging process, is first incubated 4 hours at aging temp 400 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 50%; Then at aging temp is 450 DEG C, be incubated 4 hours, then it is cold roller and deformed to carry out second time, deflection is 60%.
Alloy property is shown in accompanying drawing 1.
Embodiment 2
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.5%, the zirconium of 0.3%, the nickel of 0.2%, the titanium of 0.2%, the manganese of 0.2%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1250 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1150 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 860 DEG C, is incubated 2 hours, then forging is processed to form bar, forging deformation amount 75%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 850 DEG C of insulations 1 hour, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 40%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out interrupted aging process, is first incubated 2 hours at aging temp 450 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 80%; At aging temp is 460 DEG C, be incubated 4 hours afterwards, it is cold roller and deformed to carry out second time, and deflection is 60%; Then at aging temp 450 DEG C, be incubated 2 hours, then it is cold roller and deformed to carry out third time, deflection is 60%.
Alloy property is shown in accompanying drawing 1.
Embodiment 3
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.6%, the zirconium of 0.4%, the nickel of 0.2%, the titanium of 0.3%, the manganese of 0.4%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1250 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 880 DEG C, is incubated 2 hours, then forging is processed to form bar, forging deformation amount 75%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 900 DEG C of insulations 1 hour, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 40%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out interrupted aging process, is first incubated 4 hours at aging temp 480 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 40%; Then at aging temp is 460 DEG C, be incubated 4 hours, then it is cold roller and deformed to carry out second time, deflection is 70%.
Alloy property is shown in accompanying drawing 1.
Embodiment 4
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.6%, the zirconium of 0.3%, the nickel of 0.3%, the titanium of 0.2%, the manganese of 0.2%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1300 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 920 DEG C, is incubated 2 hours, then forging is processed to form bar, forging deformation amount 80%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 920 DEG C of insulations 1 hour, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 40%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out interrupted aging process, is first incubated 4 hours at aging temp 450 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 60%; Then at aging temp is 450 DEG C, be incubated 2 hours, then it is cold roller and deformed to carry out second time, deflection is 80%.
Alloy property is shown in accompanying drawing 1.
Embodiment 5
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.7%, the zirconium of 0.3%, the nickel of 0.3%, the titanium of 0.4%, the manganese of 0.4%, surplus is copper and inevitable impurity element.
Preparation method is with embodiment 4.
Alloy property is shown in accompanying drawing 1.
Embodiment 6
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent: the chromium of 0.8%, the zirconium of 0.5%, the nickel of 0.2%, the titanium of 0.5%, the manganese of 0.3%, surplus is copper and inevitable impurity element.
Preparation method is with embodiment 4.
Alloy property is shown in accompanying drawing 1.
Embodiment 7
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent: the chromium of 0.6%, the zirconium of 0.5%, the nickel of 0.3%, the titanium of 0.5%, the manganese of 0.2%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1300 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 950 DEG C, is incubated 3 hours, then forging is processed to form bar, forging deformation amount 75%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 920 DEG C of insulations 1 hour, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 20%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out interrupted aging process, is first incubated 2 hours at aging temp 480 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 40%; Then at aging temp is 450 DEG C, be incubated 4 hours, then it is cold roller and deformed to carry out second time, deflection is 60%; Then at aging temp 450 DEG C, be incubated 4 hours, then it is cold roller and deformed to carry out third time, deflection is 60%.
Alloy property is shown in accompanying drawing 1.
Embodiment 8
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent: the chromium of 1.5%, the zirconium of 0.3%, the nickel of 0.2%, the titanium of 0.2%, the manganese of 0.4%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1300 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 930 DEG C, is incubated 2 hours, then forging is processed to form bar, forging deformation amount 80%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 920 DEG C of insulations 1 hour, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 40%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out interrupted aging process, is first incubated 2 hours at aging temp 480 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 40%; Then at aging temp is 450 DEG C, be incubated 2 hours, then it is cold roller and deformed to carry out second time, deflection is 40%; Then at aging temp 450 DEG C, be incubated 4 hours, then it is cold roller and deformed to carry out third time, deflection is 60%.
Alloy property is shown in accompanying drawing 1.
Embodiment 9
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent: the chromium of 1.2%, the zirconium of 0.3%, the nickel of 0.1%, the titanium of 0.2%, the manganese of 0.4%, surplus is copper and inevitable impurity element.
Preparation method is with embodiment 8.
Alloy property is shown in accompanying drawing 1.
Embodiment 10
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent: the chromium of 0.5%, the zirconium of 0.3%, the nickel of 0.2%, the titanium of 0.4%, the manganese of 0.3%, surplus is copper and inevitable impurity element.
Preparation method is with embodiment 8.
Alloy property is shown in accompanying drawing 1.
Embodiment 11
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent, the chromium of 0.7%, the zirconium of 0.4%, the nickel of 0.2%, the titanium of 0.3%, the manganese of 0.4%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1200 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 800 DEG C, is incubated 1 hour, then forging is processed to form bar, forging deformation amount 60%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 850 DEG C of insulations 1 hour, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 20%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out ageing treatment, is first incubated 2 hours at aging temp 350 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 20%; Then at aging temp is 450 DEG C, be incubated 2 hours, then it is cold roller and deformed to carry out second time, deflection is 60%.
Alloy property is shown in accompanying drawing 1.
Embodiment 12
A kind of high-strength, high connductivity, deep drawing quality copper alloy, be made up of the component of following weight percent: the chromium of 0.5%, the zirconium of 0.5%, the nickel of 0.2%, the titanium of 0.2, %, the manganese of 0.4%, surplus is copper and inevitable impurity element.
Concrete preparation method is:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1300 DEG C, injects mold after melting, and form ingot casting, described pouring temperature controls at 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 950 DEG C, is incubated 3 hours, then forging is processed to form bar, forging deformation amount 80%, obtains excellent base;
(3) solution treatment: load in heat treatment furnace by the excellent base of step (2), 950 DEG C of insulations 2 hours, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 30%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out interrupted aging process, is first incubated 8 hours at aging temp 500 DEG C, and it is cold roller and deformed to carry out first time, and deflection is 20%; Then at aging temp is 500 DEG C, be incubated 2 hours, then it is cold roller and deformed to carry out second time, deflection is 80%.
Alloy property is shown in accompanying drawing 1.
Claims (3)
1. high-strength, high connductivity, a deep drawing quality copper alloy, is characterized in that: be made up of the component of following weight percent, the chromium of 0.5 ~ 1.5%, the zirconium of 0.3 ~ 0.5%, the nickel of 0.1 ~ 0.3%, the titanium of 0.2 ~ 0.5%, the manganese of 0.2 ~ 0.4%, surplus is copper and inevitable impurity element;
This is high-strength, the preparation method of high connductivity, deep drawing quality copper alloy, comprises the following steps:
(1) melting, mold: raw metal is put into high-frequency vacuum smelting furnace and carry out melting, being evacuated to pressure in stove is 5 × 10
-2pa, being then filled with pressure in nitrogen to stove is 0.05MPa, and controlling smelting temperature is 1200 ~ 1300 DEG C, injects mold after melting, and form ingot casting, pouring temperature controls at 1100 ~ 1200 DEG C;
(2) casting forging: the ingot casting that step (1) obtains is heated to 800 ~ 950 DEG C, is incubated 1 ~ 3 hour, then forging is processed to form bar, forging deformation amount 60 ~ 80%, obtains excellent base;
(3) solution treatment: the excellent base of step (2) is loaded in heat treatment furnace, is incubated 1 ~ 2 hour at 850 ~ 950 DEG C, then carries out shrend;
(4) drawing deformation: the alloy after step (3) solution treatment is carried out drawing deformation, deflection is 20 ~ 40%;
(5) ageing treatment and cold roller and deformed: the alloy after step (4) drawing deformation is carried out ageing treatment, and aging temp is 350 ~ 500 DEG C, and be incubated 2 ~ 10 hours, carry out cold roller and deformed afterwards, deflection is 20 ~ 80%.
2. the one according to claims 1 is high-strength, high connductivity, deep drawing quality copper alloy, it is characterized in that: ageing treatment and cold roller and deformed method are: first at aging temp 400 ~ 500 DEG C, be incubated 2 ~ 4 hours, it is cold roller and deformed to carry out first time, and deflection is 50 ~ 80%; Then at aging temp 450 ~ 500 DEG C, be incubated 2 ~ 4 hours, then it is cold roller and deformed to carry out second time, deflection is 60 ~ 80%.
3. the one according to claims 1 is high-strength, high connductivity, deep drawing quality copper alloy, it is characterized in that: ageing treatment and cold roller and deformed method are: first at aging temp 480 DEG C, be incubated 2 hours, and it is cold roller and deformed to carry out first time, and deflection is 40%; At aging temp 450 DEG C, be incubated 2 ~ 4 hours afterwards, it is cold roller and deformed to carry out second time, and deflection is 40 ~ 60%; Then at aging temp 450 DEG C, be incubated 4 hours, then it is cold roller and deformed to carry out third time, deflection is 60%.
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| CN110129620A (en) * | 2019-06-11 | 2019-08-16 | 珠海国合融创科技有限公司 | A kind of monel and preparation method thereof |
| CN111254313B (en) * | 2020-01-21 | 2021-11-16 | 中国兵器科学研究院宁波分院 | Preparation method of multi-element microalloyed copper alloy material |
| CN111363953B (en) * | 2020-03-20 | 2021-06-01 | 中色奥博特铜铝业有限公司 | High-strength medium-conductivity copper-iron-phosphorus-zinc-magnesium alloy foil and processing method thereof |
| CN112708799A (en) * | 2020-12-21 | 2021-04-27 | 江西理工大学 | High-strength conductive softening-resistant copper alloy and preparation method thereof |
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| CN1730690A (en) * | 2005-08-08 | 2006-02-08 | 河南科技大学 | Rare earth copper alloy and its preparation method |
| CN101348874A (en) * | 2008-09-08 | 2009-01-21 | 河南科技大学 | High performance copper-based alloy material and preparation thereof |
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| JP2632818B2 (en) * | 1986-11-14 | 1997-07-23 | 三菱マテリアル株式会社 | High-strength copper alloy with excellent thermal fatigue resistance |
| JPH0551673A (en) * | 1991-08-21 | 1993-03-02 | Nikko Kyodo Co Ltd | High-strength and high-conductivity copper alloy for electronic equipment excellent in bendability and stress relaxation property |
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| CN1730690A (en) * | 2005-08-08 | 2006-02-08 | 河南科技大学 | Rare earth copper alloy and its preparation method |
| CN101348874A (en) * | 2008-09-08 | 2009-01-21 | 河南科技大学 | High performance copper-based alloy material and preparation thereof |
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