CN1223307A - High softening temp. copper based elastic material - Google Patents
High softening temp. copper based elastic material Download PDFInfo
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- CN1223307A CN1223307A CN 98104824 CN98104824A CN1223307A CN 1223307 A CN1223307 A CN 1223307A CN 98104824 CN98104824 CN 98104824 CN 98104824 A CN98104824 A CN 98104824A CN 1223307 A CN1223307 A CN 1223307A
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Abstract
The present invention relates to a copper-base alloy. It is a good elastic material, can be used for making elastic elements used in the instruments, meters, electronic communication deice and domestic appliances, and possesses good conductivity, high elastic limit, proper toughness, high softening temp., good cold-working and hot-working property, good weldability, electroplatability, and corrosion resistance and oxidation resistance. Its material component composition: (wt%) 1.2-2.3% of Fe, 1.1-2.3% of Si, 0.6-1.6% of Al, 0.5-1.5% of Ni, 0.08-0.25% of P, 0.05-0.2% of Cr, 0.02-0.07% of V and the rest is Cu. Its raw material and production costs are less than that of tin-phohsphor-bronze, so that said invention is an ideal substitute for tin-phosphor-bronze.
Description
The invention belongs to copper base alloy.
Departments such as current instrument, electronic communication, household electrical appliances produce conduction contact spring, connector and elastic sensing element and extensively adopt the tin-phosphor bronze elastic alloy, and the poor processability in the tin-phosphor bronze, production cycle is long, and tin content height in the raw material, the cost costliness, heat resisting temperature is low in the use.At present both at home and abroad energetically research and development replace the novel copper-based elastic alloy of tin-phosphor bronze, the material of having developed has Cu-Ni-Si system, Cu-Cr-Zr system, Cu-Co-P system, Cu-Fe-P system and Cu-Fe-Al-P system etc.U.S. Olin company has developed C19500 alloy and the C19600 alloy that contains 0.8～1.2%Fe, 0.01～0.04%P, 0.05%Sn, 0.6～1.1%Co, surplus Cu after nineteen sixty, Olin company has developed C63800 alloy that contains 2.8%Al, 1.8%Si, 0.4%Co, surplus Cu and the C68800 alloy that contains 3.4%Al, 0.4%Co, 73.5%Cu, surplus Zn again later on, develop C19400 (Cu-Fe-P system) alloy the seventies, released C19700 and C19750 alloy in 1985 again.Germany Wieland company has also developed the S23 alloy similar with C68800 (only Zn content is slightly different); Developed of Japanese kobe steel is with the series alloys such as KL-1～KLF-5, KLF-116 of Ni for Co; Zhejiang University had developed the CFA elastic alloy that contains 3%Fe, 2%Al, 0.6%P, 0.3Cr%, surplus Cu in 1993, and these alloys all are proposed as the substitute material of tin-phosphor bronze.But C19500, C19400 and C19700 alloy strength attitude unit elongation on the low side, hard is that 2～5%:C63800 alloy and C68800 alloy (S23) are though there is higher intensity, but the former electric conductivity is poor than tin-phosphor bronze, the latter then anti-stress corrosion performance is poor, the cold hardening performance is identical with tin-phosphor bronze, processing difficulties: there is tangible anisotropy in the CFA alloy, and laterally (perpendicular to rolling direction) plasticity is lower.
The present invention seeks to provide a kind of and have electric conductivity and elastic performance is all good than tin-phosphor bronze, toughness is identical with tin-phosphor bronze, use temperature is higher, anti-corrosion and resilient material that oxidation-resistance is strong, and raw materials cost high softening temperature copper based elastic material lower, easy to process.
Material provided by the invention contains (by weight) 1.2～2.3%Fe, 1.1～2.3%Si, 0.6～1.6%Al, 0.5～1.5%Ni, 0.08～0.25%P, 0.05～0.2%Cr, 0.02～0.07%V, surplus Cu.
Embodiment:
This alloy material of the present invention is a basic raw material with industrial pure copper, technically pure iron, electrolytic nickel, industrial pure silicon, commercial-purity aluminium, phosphor-copper, extra low carbon ferrochromium and vanadium iron.Alloying constituent is (by weight) 1.6%Fe, 1.6%Si, 1.0%Al, 0.8%Ni, 0.19%P, 0.12%Cr, 0.04%V, surplus Cu.In advance technically pure iron, electrolytic nickel, commercial-purity aluminium, extra low carbon ferrochromium, vanadium iron are smelted into by weight proportion the lower master alloy of relative fusing point.Prepare burden by this alloying constituent and to be smelted into ingot casting (slab), ingot mill surface after hot rolling cogging, cold rolling (keeping certain cold working rate) behind the homogenizing annealing in medium-frequency induction furnace, carrying out process annealing handles, cold rolling again, it is rolling to carry out finished product after the solution treatment again, carries out the finished product ageing treatment at last.
Alloy material of the present invention improves the copper matrix strength by adopting an amount of alloying element solid solution in matrix, and multiple alloying element forms the complicated intermetallic compound of multicomponent and disperse and is distributed in the copper matrix and reaches and strengthen and keep the hot strength purpose.Iron crystal grain thinning (5～6 μ m) significantly in the alloy, improve the intensity and the toughness of alloy, and in the alloy graining process of cooling, directly form a large amount of disperse multi-element compounds with elements such as aluminium, phosphorus, and reduced the red brittleness and the superheated susceptivity of alloy, improved the hot-work ability of alloy.Nickel, chromium, aluminium solid solution strengthening effect are big, and nickel, that chromium reduces copper matrix electric conductivity is little, and nickel, aluminium, silicon etc. are separated out the intermetallic compound of small and dispersed in ag(e)ing process, improved intensity, thermostability and the electric conductivity of alloy.Solid solution has improved the solidity to corrosion of alloy simultaneously in nickel, chromium, aluminium, the silicon of copper matrix.Silicon, phosphorus have improved the casting technique performance of alloy, have improved the yield rate of alloy.The vanadium of trace can significantly improve the recrystallization temperature of alloy, and crystal grain thinning further improves the intensity and the plasticity of alloy.
Alloy material of the present invention is compared with tin-phosphor bronze commonly used (QSn6.5-0.1), has following advantage:
1. intensity height, good springiness, toughness are suitable: after solution treatment → cold working (20% working modulus) → Ageing Treatment (not exclusively timeliness), and the tensile strength (σ of alloy material of the present invention (hard attitude)b) 640～680MPa, yield strength (σ0.2) 520～570MPa is respectively than QSn6.5-0.1 alloy (hard attitude) Improve 8% and 6%; Percentage elongation 8～10% is suitable with QSn6.5-0.1 alloy (hard attitude): springform Amount (E) 11600～12300MPa is higher than hard attitude QSn6.5-0.1 alloy (E:11000MPa); Anti-stress relaxation ability is higher than QSn6.5-0.1 platform gold: band (thick 0.12～0.8mm) bending property Identical with QSn6.5-0.1 alloy (hard attitude).
After solution treatment → cold working (50% working modulus) → ageing treatment (timeliness fully), the tensile strength (σ of alloy (ultrahard attitude)
b) 760～810MPa, yield strength (σ
0.2) 650～690MPa improves 10% and 8% than QSn6.5-0.1 alloy (hard attitude) respectively; Unit elongation 2.5～3.8% is higher than ultrahard attitude QSn6.5-0.1 alloy (2～2.5%).
2. thermostability preferably, use temperature is higher.Alloy material of the present invention has the good high-temperature mechanical property, tensile strength (σ in the time of 300 ℃ because recrystallization temperature is high and the intermetallic compound dispersion-strengthened action
b) 610～640MPa (being incubated 1 hour), be higher than cold rolling attitude QSn6.5-0.1 alloy tensile strength (σ
b, 230MPa), improved reliability of products, so can use down at 100 ℃～250 ℃.
3. the present invention (hard attitude) electric conductivity 15.7%IACS is higher than hard attitude QSn6.5-0.1 alloy conductive rate 10.3%IACS.Linear expansivity and QSn6.5-0.1 alloy phase are worked as.
4. anti-corrosion strong with oxidation-resistance.At 1%H
2SO
4In 0.0011 millimeter/year of erosion rate (20 ℃), much smaller than the erosion rate (0.04 millimeter/year) of cold rolling attitude QSn6.5-0.1 alloy.Erosion rate, the oxidation weight gain of (250 ℃～700 ℃) alloy material of the present invention all are lower than the QSn6.5-0.1 alloy in media such as 5%NaCl, the 1%HCl aqueous solution and high temperature oxidation atmosphere.
5. processing characteristics is good.Because the red brittleness and the superheated susceptivity of invention material are low, the thermoplasticity height, so production technique is easy to control, yield rate improves.Cold working rate can reach more than 80%, can reduce the process annealing passage in the processing, improves productivity effect, cuts down the consumption of energy.It is functional to electroplate (Ni, Sn, Ag).
6. raw material sources are abundant, and the products material cost is compared with tin-phosphor bronze (QSn6.5-0.1) can reduce by 10%.
Claims (2)
1. a high softening temperature copper based elastic material is characterized in that containing (by weight) 1.2～2.3%Fe, 1.1～2.3%Si, 0.6～1.6%Al, 0.5～1.5%Ni, 0.08～0.25%P, 0.05～0.2%Cr, 0.02～0.07%V, surplus Cu.
2. resilient material according to claim 1 is characterized in that containing (by weight) 1.6%Fe, 1.6%Si, 1.0%Al, 0.8%Ni, 0.19%P, 0.12%Cr, 0.04%V, surplus Cu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98104824A CN1064717C (en) | 1998-01-14 | 1998-01-14 | High softening temp. copper based elastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98104824A CN1064717C (en) | 1998-01-14 | 1998-01-14 | High softening temp. copper based elastic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1223307A true CN1223307A (en) | 1999-07-21 |
| CN1064717C CN1064717C (en) | 2001-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98104824A Expired - Fee Related CN1064717C (en) | 1998-01-14 | 1998-01-14 | High softening temp. copper based elastic material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981565B (en) * | 2004-07-08 | 2010-05-12 | 株式会社藤仓 | Flexible printed wiring board terminal part or flexible flat cable terminal part |
| CN103352140A (en) * | 2013-07-01 | 2013-10-16 | 铜陵兴怡金属材料有限公司 | High-strength high-conductivity heatproof copper alloy wire rod and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1013308B (en) * | 1986-11-03 | 1991-07-24 | 梁建国 | Coil winding-direction tester |
| CN1022697C (en) * | 1990-11-13 | 1993-11-10 | 沈阳有色金属加工厂 | Copper alloy and its prodn. method |
-
1998
- 1998-01-14 CN CN98104824A patent/CN1064717C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981565B (en) * | 2004-07-08 | 2010-05-12 | 株式会社藤仓 | Flexible printed wiring board terminal part or flexible flat cable terminal part |
| CN103352140A (en) * | 2013-07-01 | 2013-10-16 | 铜陵兴怡金属材料有限公司 | High-strength high-conductivity heatproof copper alloy wire rod and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064717C (en) | 2001-04-18 |
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