CN1069289A - High strength elastic material of copper-base alloy - Google Patents
High strength elastic material of copper-base alloy Download PDFInfo
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- CN1069289A CN1069289A CN 91105605 CN91105605A CN1069289A CN 1069289 A CN1069289 A CN 1069289A CN 91105605 CN91105605 CN 91105605 CN 91105605 A CN91105605 A CN 91105605A CN 1069289 A CN1069289 A CN 1069289A
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- berylliumbronze
- high strength
- elastic material
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Abstract
A kind of high strength elastic material of copper-base alloy is characterized in that alloy contains (Wt%) Ni5-9, Sn4-6, Al0.5-5, RE0.1-0.6 (among RE=Y, Ce, Gd, the La at least a), Cu surplus.The intensity of this alloy and elasticity with berylliumbronze quite or more excellent, but stress relaxation is little, good processability, technology is simple, price is more cheap than berylliumbronze, and non-environmental-pollution when producing.Aspect intensity and Young's modulus, the Cu-Ni-Sn-RE that alloy of the present invention generally also is better than not containing Al is an alloy.Alloy of the present invention can be used as elastic sensing element, conductive junction point carrier springs such as spring tube, spring, reed, interconnecting devices etc.
Description
The present invention relates to elastic material of copper-base alloy, in particular as elastic sensing elements such as spring tube, spring, reeds, copper base alloys such as conductive junction point carrier spring, interconnecting devices.
At present domestic and international widely used copper alloy resilient material mostly is berylliumbronze, is characterized in elasticity, good conductivity, but environmental pollution is serious during preparation, and berylliumbronze is easily crisp, the price height.Spedex (copper-nickel), tin-phosphor bronze, brass are also being used resilient material, but their elasticity deficiency, stress relaxation is big.Cu-Ni-Sn be alloy (see Acta Metal.Vo1.22,1974, p.601-609), influence the life-span of material though the intensity height is easily separated out crisp phase.
More external patents are to have done some on the alloy basis to improve at Cu-Ni-Sn, to improve the performance of some aspect of alloy.For example, the spy opens clear 56-16642 and discloses a kind of high-strength corrosion-resistant copper alloy, and its chemical ingredients is (Wt.%): Ni3-15, Sn3-10, and at least a and its total amount among Ti0.05-1.0, Mn0.1-2.0, rare earth element 0.05-1.0, the Cr0.05-0.5 is 0.05-1, and surplus is a copper.This patent (is exposed to salt water smoke, high temperature high temperature, SO by measuring contact resistance
2The atmosphere front and back) variation shows that the copper alloy that is provided significantly is better than prior art (berylliumbronze and Cu-Ni-Sn alloy) aspect erosion resistance.This patent is mainly used in the electrical means component, improves the erosion resistance of component, improving electrical contact performance, and main if it were not for as resilient material.The spy opens clear 62-19254 and discloses a kind of conduction copper alloy, and its composition (Wt.%) is: Ni3-20, and Sn2-10, rare earth element 0.1-2, surplus is Cu.This patent is mainly made electro-conductive material, and especially for the electro-conductive material of electrical discharge machining device, rather than as resilient material, and its chemical ingredients does not exceed the spy yet and opens clear 96-16642.The spy opens clear 63-274729 and discloses a kind of electronics, electric machine copper alloy, its chemical ingredients (Wt.%) is: Sn2.0-8.0, Ni3.5-10.0, Si0.6-5.0, and at least a among Cr, Mn, Ti, Al, the Fe, and its total amount is 0.03-2.0, and surplus is Cu and unavoidable impurities.This patent purpose is to improve the intensity of copper alloy, and processibility, electroconductibility, solidity to corrosion and thermotolerance make it be suitable for making the electronics of miniaturization, the component of electric device, so also main if it were not for being used as resilient material.
The objective of the invention is to overcome the deficiency of berylliumbronze resilient material, a kind of new copper base alloy resilient material is provided, its intensity and elasticity and berylliumbronze are quite or more excellent, ductility is better than berylliumbronze, and can delay separating out of crisp phase, and production cost significantly is lower than berylliumbronze, essentially no environmental pollution in the manufacturing processed.
Technical solution of the present invention is, on Cu-Ni-Sn alloy basis, adds a certain amount of Al and rare earth element, forms new copper base alloy.
Elasticity copper base alloy of the present invention part be (Wt.%): Ni5-9, Sn4-6, Al0.5-5, at least a among RE0.1-0.6(RE=Y, Ce, Gd, the La), the Cu surplus.Preferential alloying constituent of recommending is (Wt.%): Ni7-9, Sn5-6, Al2-5, RE0.3-0.5, Cu surplus.
Add Ni in alloy, the effect of Sn, Al and rare earth element is reinforced alloys, improves the intensity of alloy; The adding of Al can also reduce the timeliness sensitlzing effect of timeliness and further improve the Young's modulus of alloy; The adding of rare earth element can also be quickened spinodal decomposition (SPINODAL DECOMPOSITION), delays separating out of crisp phase, crystal grain thinning.The reason that limits the addition scope of above-mentioned alloying element is that if addition is lower than lower limit, then the strengthening effect of alloying element is not remarkable.Limit that Ni content is not higher than 9%, Sn content is not higher than 6% cost that mainly is to reduce alloy; And limit that Al content is not higher than 5%, the content of rare earth element is not higher than 0.6% reason and is that if surpass this upper limit, then the processing characteristics of alloy will degenerate.
Compare with existing berylliumbronze resilient material, alloy of the present invention aspect intensity and Young's modulus with berylliumbronze quite or more excellent, but alloy stress of the present invention is lax little, good processability, technology is simple, low price, non-environmental-pollution during preparation.The result of table 2 shows that also alloy of the present invention proves that at the Cu-Ni-Sn-RE comparison alloy that generally also is better than not containing AL aspect intensity and the Young's modulus alloy has further been strengthened in the adding of Al really, has improved Young's modulus.
Embodiment
Press listed alloy ingredient preparation embodiment of the invention alloy of table 1 and comparative example alloy.Alloy material mixes and to be loaded in the electric furnace, melting under neutral protective atmosphere, ingot casting is processed into sheet material, deflection reaches 92%, then with sheet material in 350 ℃ of following timeliness 20 minutes, survey its tensile strength σ at last
b, elastic modulus E and Vickers' hardness Hv, its result is as shown in table 2.
Table 1
Chemical Composition (Wt.%)
Alloy classification No Ni Sn Al RE Cu
Alloy 165 0.5 Y0.3 surpluses of the present invention
" 2 6 5 1 CeO.3 "
" 3 6 5 3 CeO.3 "
" 4 6 5 5 " "
" 5 9 4 3 GdO.2 "
Compare alloy 696 CeO.3 "
" 7 9 6 YO.6 "
" 8 9 6 GdO.3 "
Existing alloy 9 cu--2%Be alloys
Table 2
The cold change aging temp of alloy classification NO mechanical property
% ℃ of σ of shape amount
bE Hv
(MPa) (MPa)
Alloy 1 92 350 1,000 85,000 290 of the present invention
" 2 92 350 1100 95000 310
" 3 92 350 1440 118000 350
" 4 92 350 1500 125000 360
" 5 92 350 1167 112510 310
Compare alloy 6 92 350 1,208 110,000 340
" 7 92 350 1210 110000 342
" 8 92 350 1206 110000 340
Existing alloy
*780 ± 10 1,127 110700 320--350
℃ shrend, 300--350 ℃
Timeliness 3hr, air cooling
*: data are drawn from " instrument material ", and 1987,18(3), p150
Claims (2)
1, a kind of high strength elastic material of copper-base alloy is characterized in that said alloy contains (Wt.%) Ni5--9, Sn4--6, Al0.5--5, RE0.1--0.6 (among RE=Y, Ce, Gd, the La at least a), Cu surplus.
2, alloy as claimed in claim 1 is characterized in that said alloy contains (Wt.%) Ni7-9, Sn5-6, Al2-5, RE0.3-0.5, Cu surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91105605 CN1025794C (en) | 1991-08-08 | 1991-08-08 | High strength elastic material of copper-base alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91105605 CN1025794C (en) | 1991-08-08 | 1991-08-08 | High strength elastic material of copper-base alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1069289A true CN1069289A (en) | 1993-02-24 |
| CN1025794C CN1025794C (en) | 1994-08-31 |
Family
ID=4907252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91105605 Expired - Fee Related CN1025794C (en) | 1991-08-08 | 1991-08-08 | High strength elastic material of copper-base alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025794C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952964A (en) * | 2012-11-20 | 2013-03-06 | 无锡常安通用金属制品有限公司 | Corrosion-resisting and wear-resisting copper alloy |
| CN103555990A (en) * | 2013-10-18 | 2014-02-05 | 苏州天兼金属新材料有限公司 | Alloy material for aerospace field and manufacturing method thereof |
| CN109429497A (en) * | 2017-06-22 | 2019-03-05 | 日本精线株式会社 | Spring copper alloy superfine wire and its manufacturing method |
| CN113789459A (en) * | 2021-09-02 | 2021-12-14 | 宁波博威合金材料股份有限公司 | Copper-nickel-tin alloy and preparation method and application thereof |
| CN115710654A (en) * | 2022-11-15 | 2023-02-24 | 浙江中达精密部件股份有限公司 | Copper-nickel-tin alloy and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327017C (en) * | 2004-07-22 | 2007-07-18 | 同济大学 | Novel elastic conductive alloy and its preparing method |
-
1991
- 1991-08-08 CN CN 91105605 patent/CN1025794C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952964A (en) * | 2012-11-20 | 2013-03-06 | 无锡常安通用金属制品有限公司 | Corrosion-resisting and wear-resisting copper alloy |
| CN103555990A (en) * | 2013-10-18 | 2014-02-05 | 苏州天兼金属新材料有限公司 | Alloy material for aerospace field and manufacturing method thereof |
| CN103555990B (en) * | 2013-10-18 | 2015-09-02 | 苏州天兼金属新材料有限公司 | Alloy material for aerospace field and manufacture method thereof |
| CN109429497A (en) * | 2017-06-22 | 2019-03-05 | 日本精线株式会社 | Spring copper alloy superfine wire and its manufacturing method |
| CN109429497B (en) * | 2017-06-22 | 2021-07-09 | 日本精线株式会社 | Copper alloy ultra-fine wire for spring and method for producing same |
| CN113789459A (en) * | 2021-09-02 | 2021-12-14 | 宁波博威合金材料股份有限公司 | Copper-nickel-tin alloy and preparation method and application thereof |
| CN115710654A (en) * | 2022-11-15 | 2023-02-24 | 浙江中达精密部件股份有限公司 | Copper-nickel-tin alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1025794C (en) | 1994-08-31 |
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