CN1022697C - Copper alloy and its prodn. method - Google Patents
Copper alloy and its prodn. method Download PDFInfo
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- CN1022697C CN1022697C CN 90106428 CN90106428A CN1022697C CN 1022697 C CN1022697 C CN 1022697C CN 90106428 CN90106428 CN 90106428 CN 90106428 A CN90106428 A CN 90106428A CN 1022697 C CN1022697 C CN 1022697C
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- alloy
- copper alloy
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Abstract
The present invention relates to a copper alloy with high strength, high elasticity and high electric conductivity, which is a multielement copper alloy prepared from Cu, Ni, Si, Sn, Cr, Zr and Ti. The copper alloy can be used as elastic elements of departments of instrument, meter, electricity, electron, telecommunication, etc.
Description
The present invention is a kind of copper alloy of making conductive elastic component as industrial sectors such as instrument, electric, electronics, telecommunications.
Berylliumbronze is considered to comparatively ideal elastic copper alloy always.Because the price murder by poisoning expensive, beryllium of berylliumbronze is big, various other elastic copper alloys have been developed in the existence of problem such as product performance are wayward in the production application process both at home and abroad.It is alloy that Cu-Ni-Sn is arranged in these alloys, and it has high intensity and elasticity, but its electric conductivity and fatigue performance are poor.Also having Cu-Ti is alloy, and its electroconductibility also is lower than berylliumbronze.Developed Cu-Ni-Si system in recent years, as alloy as described in CN86102885A, (U.S.Patent 4594221) high intensity and electric conductivity are arranged, but it does not relate to elasticity, and its composition has been outside alloys range of the present invention.
Japanese kokai publication sho 59-145749 patent also provides a kind of copper alloy that is used for the semiconductor instrument lead-in wire, and its Si and Ni content also all are lower than alloy of the present invention, and intensity has only 490-780MPa, and does not relate to the elasticity quality.Day, disclosure photograph 62-180025 provided a kind of electronic machine copper alloy.Ni, several pieces of the scope of Si and fronts are all similar, do not have one piece of Ni, Si content that resembles alloy of the present invention so high, and this tensile strength of alloys has only 490-590MPa, far can not meet the demands.U.S.Patent 4,338, and 130 have introduced the Cu-Ni-Si-Cr-Al alloy, belong to precipitation hardenable alloy, its σ
0.2Be at 590-980MPa, in the scope, electric conductivity does not relate to elastic performance at 14-20%IACS.
The purpose of this invention is to provide a kind of high strength σ
b〉=930MPa high-yield strength σ
0.2The copper base alloy of 〉=880MPa, high epistasis E 〉=122500MPa and high electrical conductivity energy 〉=20%IACS, and do not contain poisonous element.
Alloy of the present invention basic composition is 5-12%Ni, 1.2-2.5%Si, and 0.2-1.0%Sn, 0.05-1.0%, Cr, 0-0.7%Zr, all the other are Cu and impurity for 0-0.6%Ti.Can also add≤1.0%Fe≤0.15P or Sb.Ni: Si=4.0-5.5 wherein: 1.The composition of this alloy the best is: 7-10%Ni, and 1.2-2.2%Si, 0.3-0.7%Sn, 0.08-0.3%Cr, 0-0.30%Zr, 0-0.15Ti, surplus is copper and impurity.Ni: Si=4.2-5.0 wherein: 1.
Make alloy of the present invention, general copper, nickel, tin, zirconium, silicon, iron, titanium, antimony etc. are made raw material with form of pure metal, and chromium, phosphorus add alloy with master alloy.Founding is preferably carried out in a vacuum.Elder generation is with the copper and mickel fusing and be heated to 1200-1300 ℃, and melt was being kept about 20 minutes under this temperature, and the composition scope of pressing alloy then adds melt with other element.The melt of alloying pours into pig mold.
Ingot casting is through hot-work, and required specification and shape are made in annealing and cold working, obtains required over-all properties for guaranteeing alloy, need carry out quench treatment before finished product processing.Quenching temperature is 900-960 ℃, and soaking time 40-90 minute, quenchant was industrial cold water.After the blank process cold deformation of 40-60% of quench treatment, then at 400-450 ℃ of ageing treatment 90-120 minute.
Alloy of the present invention has high intensity, and yield strength, and elasticity also have higher conductivity simultaneously.Alloy of the present invention has good hot workability and cold-workability, and production technique is simple, does not contain poisonous element simultaneously, has avoided poisonous element to the pollution of environment and operator's harm.
Example 1 carries out alloying with Cu, Ni, Si, Sn, Zr, Ti, Cu-Cr master alloy in vacuum oven, preparation contains 10%Ni, 2.0%Si, 0.4%Sn, 0.35%Zr, 0.56%Ti, the high-strength highly-conductive elastic copper alloy of 1%Cr.Cu and Ni fusing are heated to 1250 ℃, make melt, according to above-mentioned element is added melt this temperature refining 20 minutes.The melt of alloying pours in the pig mold.Ingot casting carries out hot rolling, process annealing and cold rolling after machining; 950 ℃ of heating 60 minutes, in the cold water of quenching, follow the sheet material of 1.0 millimeters of cold rolling one-tenth before the finished product processing, carry out 2 hours ageing treatment at 450 ℃ at last, the results of property that records is: σ
b=1107-1136MPa, σ
0.2=1087-1107MPa, δ=2.5%, E=13500-14200Kg/mm
2, electric conductivity=20.3%IACS.
Example 2, the method preparation of narrating by example 1 contains 8%Ni, 1.8%Si, 0.6%Sn, 0.6%Cr, 0.1%Zr, the high-strength high elasticity copper alloy of 0.1%Ti.The band that the alloy of founding is processed into 0.1 millimeter is used.This half-finished performance is: σ
b=1049-1078MPa, σ
0.2=1019-1058MPa, δ=3-4%, electric conductivity=24%IACS.
Example 3, the method preparation of narrating by example 1 contains 8.6%Ni, 2%Si, 0.6%Sn, 0.6%Cr, the high-strength highly-conductive elastic copper alloy of 0.2%Zr.The alloy of founding is processed into 1.5 millimeters sheet material, and the performance of this sheet material is: σ
b1019-1038MPa, σ
0.2=1009-1019MPa, δ=4.5-5%, E=12700Kg/mm
2, electric conductivity=20%IACS.
Example 4, the method preparation of narrating by example 1 contains 6%Ni, 1.5%Si, 0.2%Sn1.0Cr, 0.6%Fe, the copper alloy with high strength and high conductivity of 0.1%P.Be processed into 1.0 millimeters sheet material with the alloy of founding, the performance of this plate is σ
b=1019-1038MPa, σ
0.2=1009-1029MPa, δ=4%, electric conductivity=23.4%IACS.
Claims (3)
1, a kind ofly be used for that the electronic industry height is led, high-strength, elastomeric copper alloy, it is characterized in that the Ni5-12% that consists of of this alloy, Si1.2-2.5%, Sn0.2-1.0%, Cr0.05-1.0%, surplus is copper and impurity, wherein Ni: Si=4.0-5.5: 1.
2, copper alloy as claimed in claim 1 is characterized in that chemical ingredients is Ni7-10%, Si1.2-2.2%, and Sn0.3-0.7%, Cr0.08-0.3%, surplus is copper and impurity.Ni: Si=4.2-5.0 wherein: 1.
3, a kind of make high-strength, height is led, the method for snappiness copper alloy, comprises operations such as founding, hot-work, cold working and annealing, it is characterized in that,
(1) Cu, Ni, Sn, Zr, Fe, Si, Ti, Sb add with pure metal, and Cr adds with the CuCr master alloy;
(2) Cu, Ni add earlier in the stove, and the fusing back added other element in 20 minutes again 1200-1300 ℃ of refining;
(3) need quench treatment before the finished product processing, quenching temperature is: 900-960 ℃, soaking time 40-90 minute, quenchant was industrial cold water;
(4) blank after quench treatment is again through the 40-60% cold deformation;
(5) 400-500 ℃ ageing treatment 90-120 minute;
(6) founding is carried out in vacuum oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106428 CN1022697C (en) | 1990-11-13 | 1990-11-13 | Copper alloy and its prodn. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106428 CN1022697C (en) | 1990-11-13 | 1990-11-13 | Copper alloy and its prodn. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1061442A CN1061442A (en) | 1992-05-27 |
| CN1022697C true CN1022697C (en) | 1993-11-10 |
Family
ID=4880067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90106428 Expired - Fee Related CN1022697C (en) | 1990-11-13 | 1990-11-13 | Copper alloy and its prodn. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1022697C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064717C (en) * | 1998-01-14 | 2001-04-18 | 浙江大学 | High softening temp. copper based elastic material |
| JP3731600B2 (en) * | 2003-09-19 | 2006-01-05 | 住友金属工業株式会社 | Copper alloy and manufacturing method thereof |
| CN1325675C (en) * | 2004-12-08 | 2007-07-11 | 刘少光 | High strength high conductivity heat resistant copper alloy and its mannfacturing method |
| CN106032557B (en) * | 2015-03-18 | 2017-11-17 | 吉林师范大学 | A kind of method for improving copper-based multicomponent alloy hardness |
| CN106435260A (en) * | 2016-11-23 | 2017-02-22 | 宁波兴业盛泰集团有限公司 | High-strength high-flexibility CuNiSn alloy material and preparation method thereof |
-
1990
- 1990-11-13 CN CN 90106428 patent/CN1022697C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1061442A (en) | 1992-05-27 |
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