JPS62227071A - Manufacture of high strength, electrically conductive copper alloy - Google Patents
Manufacture of high strength, electrically conductive copper alloyInfo
- Publication number
- JPS62227071A JPS62227071A JP6976486A JP6976486A JPS62227071A JP S62227071 A JPS62227071 A JP S62227071A JP 6976486 A JP6976486 A JP 6976486A JP 6976486 A JP6976486 A JP 6976486A JP S62227071 A JPS62227071 A JP S62227071A
- Authority
- JP
- Japan
- Prior art keywords
- strength
- alloy
- copper alloy
- conductive copper
- manufacture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000005097 cold rolling Methods 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 4
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 4
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract 2
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 4
- 229910052770 Uranium Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 5
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 229910052718 tin Inorganic materials 0.000 abstract description 2
- 229910052725 zinc Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 4
- 239000010956 nickel silver Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔目 的〕 ・
本発明は、電子・電気機器の端子、コネクター、スイッ
チ等に使用する銅合金の強度、特に引張強さとばね性を
同時に向上させる製造方法に関するものである。[Detailed Description of the Invention] [Purpose] - The present invention relates to a manufacturing method that simultaneously improves the strength, particularly the tensile strength and springiness, of copper alloys used for terminals, connectors, switches, etc. of electronic and electrical equipment. be.
従来、電子・電気機器の端子、コネクター、スイッチ等
のばね材には、洋白、りん青銅、黄銅などが使用されて
いる。通常これらのばね材には以下のことが要求されて
いる。Conventionally, materials such as nickel silver, phosphor bronze, and brass have been used as spring materials for terminals, connectors, switches, etc. of electronic and electrical equipment. Typically, these spring materials are required to:
（１） 強度が高いこと
（２） 耐応力緩和特性に優れていること（３）
電気伝導度が高いこと
（４） 耐食性に優れていること
（５） 安価であること
前記に例示したばね材の中で特に洋白は強度が高く、耐
応力緩和特性に優れ、電気伝導度が高く、しかも耐食性
に優れているため、高級ばね材として高く評価されてい
るが、洋白が高価であるため、特に高信頼性が要求され
る機器などの一部に限って使用されている。又、近年、
機器の小型化、軽量化により、更に強度及びばね性を向
上させることが要求され、しかも洋白より安価な材料が
望まれていた。(1) High strength (2) Excellent stress relaxation properties (3)
High electrical conductivity (4) Excellent corrosion resistance (5) Low cost Among the spring materials listed above, nickel silver has particularly high strength, excellent stress relaxation resistance, and high electrical conductivity. It is highly valued as a high-grade spring material due to its high price and excellent corrosion resistance. However, because nickel silver is expensive, it is only used in some equipment that particularly requires high reliability. Also, in recent years,
As equipment becomes smaller and lighter, there is a demand for further improvements in strength and springiness, and a material that is cheaper than nickel silver is desired.
本発明は、この様な状況に鑑みて研究を行った結果、Ｚ
ｎ ２０−４０ ｗ ｔ％、Ｎ ｉ ２〜１０ ｗ
ｔ％、Ｍｎ １〜１０ｗｔ％、Ｓｎ０．０１〜３ｗｔ％
を含み、残部Ｃｕ及び不可避的不純物からなる合金を、
最終冷間圧延の後に１５０℃〜７ｏｏ℃で３０秒〜２０
時間熱処理し、強度とばね性を向上させることを特徴と
する高力導電銅合金の製造方法並びにＺｎ２０〜４０ｗ
ｔ％、Ｎｉ２〜１゜ｗｔ％、Ｍ ｎ １〜１０ ｗ ｔ
％、Ｓｎ０．０１〜３ｗし％及び他にＴｅ、Ｃｒ、Ｃｏ
、Ｚｒ、Ｖ、Ｂｅ、Ｃｄ、Ａｓ、Ｐの内１種又は２種以
上を０゜０１〜３ｗｔ％を含み、残部Ｃｕ及び不可避的
不純物からなる合金を、最終冷間圧延の後に１５０℃〜
７００℃で３０秒〜２０時間熱処理し、強度とばね性を
向上させることを特徴とするτＧ力導電銅合金の製造方
法を提供するものである。The present invention was developed as a result of research conducted in view of such circumstances.
n 20-40 wt%, Ni 2-10 w
t%, Mn 1-10wt%, Sn0.01-3wt%
An alloy containing Cu and unavoidable impurities,
After final cold rolling at 150℃~7oo℃ for 30 seconds~20
A method for producing a high-strength conductive copper alloy characterized by time heat treatment to improve strength and elasticity, and Zn20-40w
t%, Ni2~1゜wt%, Mn 1~10wt
%, Sn0.01~3w% and others Te, Cr, Co
, Zr, V, Be, Cd, As, P containing 0.01 to 3 wt% of one or more of P, and the balance being Cu and unavoidable impurities.
The present invention provides a method for producing a τG force conductive copper alloy, which is characterized by heat treatment at 700° C. for 30 seconds to 20 hours to improve strength and springiness.
次に本発明に適用される合金の合金成分及び製造方法の
限定理由について説明する。Next, the reasons for limiting the alloy components and manufacturing method of the alloy applied to the present invention will be explained.
Ｃｕ及びＺｎは本発明合金のＪｌ（本成分であり、加工
性、機械的性質、及び電気伝導性を良好に保有せしめる
。Ｚｎｎ含有量２０〜４０ｗ１；％とする理由は、Ｚ
ｎ含有量が２０ｗｔ％未満では強度が十分でなく、Ｚ
ｎ含有量が４０ｗｔ％を超えると加工性が劣化する為で
ある。Cu and Zn are the Jl (main components) of the alloy of the present invention, which ensure good workability, mechanical properties, and electrical conductivity.
If the n content is less than 20 wt%, the strength is insufficient, and Z
This is because workability deteriorates when the n content exceeds 40 wt%.
Ｎｉ含有量を２〜１０ｗ’ｔ％とする理由は。What is the reason for setting the Ni content to 2 to 10 w't%?
Ｎｉ含有量が２ｗｔ％未満では強度及び耐食性が十分で
なく、Ｎｉ含有量が１０ｗし％を超えると加工性が悪く
なり、又価格も高くなるためである。This is because if the Ni content is less than 2 wt%, the strength and corrosion resistance will not be sufficient, and if the Ni content exceeds 10 wt%, the workability will deteriorate and the price will increase.
Ｍ ｒｒを添加するのは、Ｎｉよりも安価で、かつ強度
を向上させるため一部Ｎｉの代替材として使用でき、し
かも熱間加工性を向」―させるからである。The reason for adding M rr is that it is cheaper than Ni, can be used as a partial substitute for Ni to improve strength, and also improves hot workability.
Ｍｎ含有量を１〜１０ｗｔ％とする理由は、Ｍｎ含有量
が１ｗｔ％未満では強度及び熱間加工性の向−にの効果
が認められず、又Ｍｎ含有量が１゜ｗし％を超えると逆
に加工性が悪化するためである。Ｓｎを添加するのは、
強度及び耐食性を向上させるためであり、Ｓｎ含有量を
０．０１〜３ｗｔ％とする理由は、Ｓｎ含有量がＯ，０
１ｗｔ％未満では強度及び耐食性の向上が認められず、
Ｓｎ含有量が３ｗｔ％を超えると加工性が悪化し、又価
格も高くなるためである。The reason why the Mn content is set to 1 to 10 wt% is that when the Mn content is less than 1 wt%, no effect on strength and hot workability is observed, and when the Mn content exceeds 1 w%. This is because workability deteriorates on the contrary. Adding Sn is
This is to improve strength and corrosion resistance, and the reason why the Sn content is set to 0.01 to 3 wt% is that the Sn content is O, 0.
If it is less than 1 wt%, no improvement in strength and corrosion resistance is observed,
This is because if the Sn content exceeds 3 wt%, processability will deteriorate and the price will also increase.
さらに副成分としてＴｅ、Ｃｒ、Ｃｏ、Ｚｒ、Ｖ、Ｂｅ
、Ｃｄ、Ａｓ、Ｐを添加するのは、強度及び耐食性を向
上させるからである。Furthermore, Te, Cr, Co, Zr, V, Be as subcomponents
, Cd, As, and P are added because they improve strength and corrosion resistance.
これら副成分の内１種若しくは２種以上を０゜０１〜３
ｗ ｔ％とする理由は、Ｏ，０１ｗｔ％未満では強度
及び耐食性の向上の効果が認められず、又３ｗｔ％を超
えると加工性が劣化するからである。One or more of these sub-ingredients at 0°01-3
The reason why O is set at 0.01 wt% is that the effect of improving strength and corrosion resistance is not recognized when O is less than 0.01 wt%, and when it exceeds 3 wt%, workability deteriorates.
熱処理温度を１５０℃〜７００℃に限定したのは、１５
０℃未満では熱処理効果が現われず、又７００℃を超え
る温度では短時間で軟化してしまい［１的とする強度が
得られないためである。より好ましい熱処理温度は２０
０℃〜６ｏｏ℃である。The heat treatment temperature was limited to 150°C to 700°C in 15
If the temperature is lower than 0°C, the heat treatment effect will not appear, and if the temperature exceeds 700°C, it will soften in a short time [this is because it is not possible to obtain the desired strength. A more preferable heat treatment temperature is 20
The temperature is 0°C to 60°C.
又、熱処理時間を３０秒〜２０時間に限定したのは３０
秒未満では得られる材料特性が安定せず、又２０時間を
超えると熱処理の効果が飽和し、それ以上続けても無駄
であり経済的価値がなくなるからである。In addition, the heat treatment time was limited to 30 seconds to 20 hours.
This is because, if the heat treatment is less than 2 seconds, the obtained material properties will not be stable, and if the heat treatment exceeds 20 hours, the effect of the heat treatment will be saturated, and continuing the heat treatment for any longer than that will be wasteful and will have no economic value.
次に本発明合金の実施例を説明する。 Next, examples of the alloy of the present invention will be described.
第１表に示す諸組成の合金を溶製し、厚さ３０ｍの鋳塊
を得た。次にこの鋳塊を約８５０’Ｃで熱間圧延し、厚
さ８．Ｏｎｗｎにした後、適宜焼鈍を加えなから冷間圧
延により厚さ０．３ｎｅの板とした。Alloys having various compositions shown in Table 1 were melted to obtain ingots with a thickness of 30 m. This ingot was then hot rolled at approximately 850'C to a thickness of 8. After turning it on, it was appropriately annealed and then cold rolled into a plate with a thickness of 0.3ne.
その後第１表に示す所定の熱処理を行い、引張特性、ば
ね限界値及び応力緩和特性の調査を行った。Thereafter, prescribed heat treatments shown in Table 1 were performed, and tensile properties, spring limit values, and stress relaxation properties were investigated.
応力緩和特性は、１５０’Ｃ１大気中で、耐力の８０％
を負荷して１０００時間後の応力緩和特性を％で評価し
た。Stress relaxation property is 80% of yield strength in 150'C1 atmosphere
The stress relaxation characteristics after 1000 hours of loading were evaluated in %.
第１表から明らかな様に、Ｎｉ、Ｍｎ及びＳｎ含有量の
多いものは引張特性、ばね限界値、応ヵ緩和特性は良好
であるが、本発明の熱処理を施すことにより、特にばね
限界値及び応力緩和特性が一層向上することがわかる。As is clear from Table 1, those with high Ni, Mn, and Sn contents have good tensile properties, spring limit values, and stress relaxation properties, but by applying the heat treatment of the present invention, especially the spring limit values It can be seen that the stress relaxation properties are further improved.
以上の様に本発明の製造方法により、強度、ばね性が著
しく向上し、電子・電気機器の端子、コネクター、スイ
ッチ等に最適なばね用銅合金が得られる。As described above, by the manufacturing method of the present invention, it is possible to obtain a copper alloy for springs, which has significantly improved strength and spring properties and is ideal for terminals, connectors, switches, etc. of electronic and electrical equipment.
以下余白Margin below
Claims (2)
ｎ１〜１０ｗｔ％、Ｓｎ０．０１〜３ｗｔ％を含み、残
部Ｃｕ及び不可避的不純物からなる合金を、最終冷間圧
延の後に１５０℃〜７００℃で３０秒〜２０時間熱処理
し、強度とばね性を向上させることを特徴とする高力導
電銅合金の製造方法。(1) Zn20-40wt%, Ni2-10wt%, M
After the final cold rolling, an alloy containing 1 to 10 wt% of n, 0.01 to 3 wt% of Sn, and the remainder Cu and unavoidable impurities is heat treated at 150 to 700 °C for 30 seconds to 20 hours to improve strength and elasticity. A method for producing a high-strength conductive copper alloy.
ｎ１〜１０ｗｔ％、Ｓｎ０．０１〜３ｗｔ％及び他にＴ
ｅ、Ｃｒ、Ｃｏ、Ｚｒ、Ｖ、Ｂｅ、Ｃｄ、Ａｓ、Ｐの内
１種又は２種以上を０．０１〜３ｗｔ％を含み、残部Ｃ
ｕ及び不可避的不純物からなる合金を、最終冷間圧延の
後に１５０℃〜７００℃で３０秒〜２０時間熱処理し、
強度とばね性を向上させることを特徴とする高力導電銅
合金の製造方法。(2) Zn20-40wt%, Ni2-10wt%, M
n1~10wt%, Sn0.01~3wt% and other T
Contains 0.01 to 3 wt% of one or more of e, Cr, Co, Zr, V, Be, Cd, As, and P, and the balance is C.
After the final cold rolling, the alloy consisting of U and inevitable impurities is heat treated at 150°C to 700°C for 30 seconds to 20 hours,
A method for producing a high-strength conductive copper alloy characterized by improved strength and springiness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6976486A JPS62227071A (en) | 1986-03-29 | 1986-03-29 | Manufacture of high strength, electrically conductive copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6976486A JPS62227071A (en) | 1986-03-29 | 1986-03-29 | Manufacture of high strength, electrically conductive copper alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62227071A true JPS62227071A (en) | 1987-10-06 |
Family
ID=13412192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6976486A Pending JPS62227071A (en) | 1986-03-29 | 1986-03-29 | Manufacture of high strength, electrically conductive copper alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62227071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627011B2 (en) | 2000-04-14 | 2003-09-30 | Dowa Mining Co., Ltd. | Process for producing connector copper alloys |
| US6949150B2 (en) | 2000-04-14 | 2005-09-27 | Dowa Mining Co., Ltd. | Connector copper alloys and a process for producing the same |
-
1986
- 1986-03-29 JP JP6976486A patent/JPS62227071A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627011B2 (en) | 2000-04-14 | 2003-09-30 | Dowa Mining Co., Ltd. | Process for producing connector copper alloys |
| US6949150B2 (en) | 2000-04-14 | 2005-09-27 | Dowa Mining Co., Ltd. | Connector copper alloys and a process for producing the same |
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