CN1040060A - A kind of copper base alloy and technology thereof - Google Patents
A kind of copper base alloy and technology thereof Download PDFInfo
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- CN1040060A CN1040060A CN 88105758 CN88105758A CN1040060A CN 1040060 A CN1040060 A CN 1040060A CN 88105758 CN88105758 CN 88105758 CN 88105758 A CN88105758 A CN 88105758A CN 1040060 A CN1040060 A CN 1040060A
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Abstract
The invention provides a kind of copper base alloy, its composition is chromium 0.15～0.6%, zirconium 0.1～0.25%, germanium 0.01～0.15%, niobium and/or contains cerium mischmetal element 0.01～0.08%, Yu Weitong, copper base alloy with composition of the present invention, after processing method provided by the invention is handled, its electric conductivity average out to 83% (IACS), normal temperature hardness average out to HRB83, softening temperature is higher than 575 ℃, this alloy is suitable for production in enormous quantities, and is suitable for being common to the resistance welding electrode material of light alloy, band Coated Steel and heat-resisting alloy steel.
Description
The present invention relates to a kind of copper base alloy and technology thereof, it is that optimization by the adjustment of composition and processing method reaches high intensity and high electric conductivity.
It is existing historical for many years to use chrome zirconium copper alloy in the resistance welding field.This Albatra metal-contains chromium 0,5～1%, contains zirconium 0,05～0,2%, and it has certain intensity, and electric conductivity also remains on 75%(IACS) about.But aspect electric conductivity, it can't finely satisfy point, the seam weldering requirement of light alloy, particularly aluminium alloy and band Coated Steel; Aspect hardness and softening temperature, it is the resistance welding requirement of incompatibility heat-resisting alloy steel again, and therefore further improved necessity arranged.
In order to accomplish this point, existing abroad people has done a large amount of work.For example, United States Patent (USP) 4224066 is by adding an amount of iron to increase the controllability of its precipitation hardening process in chromium zirconium copper; UK Patent Application 652997(1976 January 28) and 185068 of russian patents illustrated the benefit that in chromium zirconium copper, adds vanadium; United States Patent (USP) 4049426(1977 September 20) disclose and contained chromium 0,05～1,25%, zirconium 0,05～1%, niobium 0,05～1,5% copper base alloy and operational path thereof, listed performance data shows that the electric conductivity of gained alloy increases, but tool system performance then maintains former invention level.
Purpose of the present invention is will develop a kind of electric conductivity and strength property all to obtain the stable copper base alloy that improves on the basis of chromium zirconium copper, and its existing higher electric conductivity also has higher normal temperature hardness and softening temperature.If reach this purpose, we just can provide a kind of resistance welding electrode material that is common to light alloy and is with Coated Steel, heat-resisting alloy steel for society.
Another object of the present invention is to provide a kind of and help improving the processing method of copper alloy yield rate to satisfy requirement of mass production.
The objective of the invention is to reach like this one
At first adopt the stability of a small amount of complex alloys principle with further raising αGu Rongti high temperature microstructure, specific practice is to add following element in copper: chromium 0,15～0,6%, zirconium 0,1～0,25%, be germanium 0,01～0,15% in addition, niobium and/or cerium cerium mischmetal 0,01～0,08%.
Secondly the copper alloy complete processing has been done local adjustment: first, after the ingot casting forge hot, be warming up to 1000 ℃ (these are in order suitably to improve tapping temperature) again through (970 ℃ * 1,5 hour) insulation earlier during solution treatment, the quenching of coming out of the stove fast, and used quenchant is that temperature is lower than 5 ℃ icy salt solution; The second, second wife's temperature cold deformation (deflection 50%) has adopted the secondary isothermal aging to handle (adding 480 ℃ * 3 hours in 360 ℃ * 2 hours) afterwards.
In chromium zirconium copper, add a small amount of niobium and can promote the cast alloy grain refining, help improving the over-all properties of alloy.The purpose of adding small amount of Germanium is to improve hardness of alloy.When the amount when being lower than 0,01% of adding germanium, alloy rigidity is undesirable; If its consumption surpasses 0,15%, can produce detrimentally affect to electric conductivity again.Other adds trace and contains cerium mischmetal, be for the impurity element with in the alloy form compound with reinforced alloys.Practice shows that the optimal components of alloy of the present invention is: chromium 0,30～0,45%, zirconium 0,14～0,18%, germanium 0,05～0,09%, niobium and/or contain cerium mischmetal 0,04～0,08%.
Obtain with ordinary method, composition meets the copper alloy casting ingot of requirement of the present invention should be by following processes: forge hot (850～950 ℃) back is incubated 1,5 hour and heats up then under 970 ℃ temperature, when temperature reaches 1000 ℃, come out of the stove fast, drop into temperature and be lower than 5 ℃ cryosel quenching-in water, carry out the cold deformation of deflection 50% after the quenching, carry out the secondary isothermal aging at last and handle (adding 480 ℃ * 3 hours in 360 ℃ * 2 hours).Suitably improve tapping temperature and can obtain solid solution effect preferably; And adopt the classification isothermal aging handle to improve, the over-all properties of stable alloy truly has positive effect, such timeliness can significantly suppress the discontinuous phenomenon of separating out, and makes second become the mutually disperse more, evenly.This point is significant for the stable control of copper alloy over-all properties in batch process.
Embodiment 1:
Obtain the copper alloy casting ingot of following composition with usual method: chromium 0,45～0,6%, zirconium 0,15～0,25%, germanium 0,05～0,15%, niobium 0,02～0,04% and contain cerium mischmetal 0,02～0,04%.Under 850～950 ℃, ingot casting is carried out forge hot, forge after (970 ℃ * 1,5 hour) insulation is warming up to 1000 ℃ again, come out of the stove fast and quench that to be lower than 5 ℃, concentration be Quench in 10% the icy salt solution to temperature, carry out cold deformation under the room temperature and handle (deflection 50%), carry out the classification isothermal aging subsequently: (360 ℃, 2 hours+480 ℃, 3 hours), air cooling.The gained alloy has following performance: electric conductivity 80～82%(IACS), and normal temperature hardness HRB83～87, softening temperature is higher than 575 ℃.
Embodiment 2:
Obtain the following ingot casting of composition with usual method: chromium 0,30～0,45%, zirconium 0,14～0,18%, germanium 0,05～0,09%, niobium and/or contain cerium mischmetal 0,02～0,06%, Yu Weitong.After by the regulation of embodiment 1 ingot casting being processed, the gained alloy property is: electric conductivity 80～85%(IACS), normal temperature hardness HRB80～84 softening temperatures are higher than 575 ℃.
In a word, by the copper alloy that the present invention obtains, conductance average out to 83%(IACS) with the right side, normal temperature hardness average out to HRB83, softening temperature is higher than 575 ℃. Yield rate during batch production also significantly improves. Because it has the combination property that is better than chromium zirconium copper, be suitable for being common to light-alloy, particularly aluminium alloy, with the resistance welding electrode material of clad steel sheet and heat-resisting alloy steel.
Claims (3)
1, a kind of copper base alloy, contain alloying element chromium 0,15～0,6%, zirconium 0,1～0,25%, it is characterized in that it also contains alloying element germanium, niobium and/or contain cerium mischmetal, and its content is: germanium 0,01～0,15%, niobium and/or contain cerium mischmetal 0,01～0,08%.
2, by the described a kind of copper base alloy of claim 1, the proportioning that it is characterized in that contained alloying element is a chromium 0,30～0,45%, zirconium 0,14～0,18%, niobium and/or contain cerium mischmetal 0,04～0,08%.
3, a kind of processing method that helps obtaining high strength, high conductivity copper alloy comprises the steps: cold deformation-timeliness under ingot casting-forge hot-solution treatment-room temperature, it is characterized in that:
1. in solution treatment, suitably improved tapping temperature;
2. shock chilling medium is that temperature is lower than 5 ℃ 10% icy salt solution;
3. the deflection of cold deformation is 50%;
4. timeliness is (360 ℃, 2 hours+480 ℃, 3 hours) such classification isothermal aging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105758 CN1015379B (en) | 1988-08-03 | 1988-08-03 | Copper-based alloy and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105758 CN1015379B (en) | 1988-08-03 | 1988-08-03 | Copper-based alloy and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1040060A true CN1040060A (en) | 1990-02-28 |
| CN1015379B CN1015379B (en) | 1992-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105758 Expired CN1015379B (en) | 1988-08-03 | 1988-08-03 | Copper-based alloy and process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015379B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001977A (en) * | 2016-06-12 | 2016-10-12 | 常熟明辉焊接器材有限公司 | Manufacturing method of welding electrode material of automobile |
| CN106166591A (en) * | 2016-06-30 | 2016-11-30 | 安徽省瑞杰锻造有限责任公司 | Chrome zirconium copper alloy Forging Technology |
-
1988
- 1988-08-03 CN CN 88105758 patent/CN1015379B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001977A (en) * | 2016-06-12 | 2016-10-12 | 常熟明辉焊接器材有限公司 | Manufacturing method of welding electrode material of automobile |
| CN106001977B (en) * | 2016-06-12 | 2018-04-13 | 常熟明辉焊接器材有限公司 | The preparation method of automobile welding electrode material |
| CN106166591A (en) * | 2016-06-30 | 2016-11-30 | 安徽省瑞杰锻造有限责任公司 | Chrome zirconium copper alloy Forging Technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1015379B (en) | 1992-02-05 |
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