JPS6326320A - High power conductive copper alloy - Google Patents

High power conductive copper alloy

Info

Publication number
JPS6326320A
JPS6326320A JP16778486A JP16778486A JPS6326320A JP S6326320 A JPS6326320 A JP S6326320A JP 16778486 A JP16778486 A JP 16778486A JP 16778486 A JP16778486 A JP 16778486A JP S6326320 A JPS6326320 A JP S6326320A
Authority
JP
Japan
Prior art keywords
alloy
strength
content
copper alloy
exceeds
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
Application number
JP16778486A
Other languages
Japanese (ja)
Inventor
Junji Miyake
淳司 三宅
Masahiro Tsuji
正博 辻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP16778486A priority Critical patent/JPS6326320A/en
Publication of JPS6326320A publication Critical patent/JPS6326320A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the spring characteristic and corrosion resistance of an alloy by incorporating specific ratios of Zn, P and Sn into Cu. CONSTITUTION:This high power conductive copper alloy contains, by weight, 10-40% Zn, 0.005-0.070% P and 0.05-1.0% Sn, contains, if necessary, 0.005-2.0% >=1 kinds among B, Ni, S, Fe, Pb, Co, Cr, Mn, Te, In, Ti, Zr, Hf, Be, Mg, Ag, Cd, Ge, As, and Sb and consists of the balance Cu. The Cu and Zn in such alloy are the basic materials having excellent workability and mechanical strength plus heat conductivity. However, the strength is low if the Zn is below the lower limit and the material characteristics are not stable if the content thereof exceeds the upper limit. The improved strength is not admitted and the corrosion resistance is not expected if the P is below the lower limit. The degradation of the conductivity and the intergranular corrosion are liable to arise if the content thereof conversely exceeds the upper limit. The degradation of the conductivity is significant if the content of the Sn exceeds the upper limit.

Description

【発明の詳細な説明】 本発明は高力で優れたバネ特性を有し、かつ耐食性に優
れた安価なバネ用鋼合金に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inexpensive steel alloy for springs that has high strength, excellent spring properties, and excellent corrosion resistance.

従来、丹銅及び黄銅は、その優れた加工性並びに低コス
ト材料であるため、電子、電気部品材料としても、電気
機器用バネ、計」り器用バネ、スイッチ、コネクター等
に広範囲に使用されていた。
Traditionally, red copper and brass have been widely used as materials for electronic and electrical components, such as springs for electrical equipment, springs for gauges, switches, and connectors, due to their excellent workability and low cost. Ta.

しかし近年、機器、装置の小型化、軽量化により更に強
度、バネ特性の向上が強く要望されており、また耐食性
が劣るため、耐食性の向」二に対しても強い要望がある
However, in recent years, due to the miniaturization and weight reduction of equipment and devices, there has been a strong demand for further improvements in strength and spring characteristics, and since corrosion resistance has been poor, there has also been a strong demand for improvements in corrosion resistance.

本発明はかかる点に鑑みなされたもので、安価で、強度
、バネ特性に優れ、耐食性にも優れた銅合金を提供しよ
うとするものである。
The present invention has been made in view of these points, and an object thereof is to provide a copper alloy that is inexpensive, has excellent strength and spring characteristics, and is also excellent in corrosion resistance.

すなわち、Zn1O〜40wt%、 P0.005〜0
.070wt%、Sn0.05〜10wt%を含み、残
部Cu及び不可避的不純物からなる高力導電銅合金並び
にZ n 1.0〜40wt%、P  0.005〜0
.070wt%、S n O,05〜1 、0 w t
%を含み、さらに B、Nj、、Sj、Fe、Pb、C
0.Cr、Mn、Te、In、Ti、Zr、Hf、Be
、Mg、Ag、Cd、Ge。
That is, Zn1O~40wt%, P0.005~0
.. A high-strength conductive copper alloy containing 0.070 wt%, Sn 0.05 to 10 wt%, and the remainder Cu and inevitable impurities, and Zn 1.0 to 40 wt%, P 0.005 to 0.
.. 070wt%, SnO, 05~1, 0wt
%, and further includes B, Nj, , Sj, Fe, Pb, C
0. Cr, Mn, Te, In, Ti, Zr, Hf, Be
, Mg, Ag, Cd, Ge.

As、Sbの白河れか1種又は2種以上を合計0.00
5〜2.0wt%含み、残部Cu及び不可避的不純物か
らなる高力導電銅合金に関するものである。
A total of 0.00 of one or more types of As and Sb Shirakawa
The present invention relates to a high-strength conductive copper alloy containing 5 to 2.0 wt% of Cu and the balance being Cu and unavoidable impurities.

次に本発明合金の各成分元素の限定理由について述べる
ことにする。銅と亜鉛は本発明合金の基本材料となるも
ので、加工性、機械的強度に優れているとともに熱伝導
性にも優れている。亜鉛含有量を10〜40wt%とす
る理由は、亜鉛含有量が10wt%未満では強度が低く
、亜鉛含有量が4. Ow t%をこえるとβ相の析出
が多量となり、材料性質が安定しなくなるためである。
Next, the reason for limiting each component element of the alloy of the present invention will be described. Copper and zinc are the basic materials of the alloy of the present invention, and have excellent workability and mechanical strength as well as excellent thermal conductivity. The reason why the zinc content is set to 10 to 40 wt% is that if the zinc content is less than 10 wt%, the strength will be low. This is because if it exceeds Ow t%, a large amount of β phase will precipitate and the material properties will become unstable.

りんの含有量を0.005〜0.070wt%とする理
由は、りん含有量が0.005wt%未満では強度の向
上が認められず、耐食性の改善も期待できない。逆にり
ん含有量が0.070wt%をこえると導電性の低下及
び粒界腐食が発生し易くなるためである。錫含有量を0
.05〜1.0wt%とする理由は、錫含有量が0.0
5wt%未満では強度、バネ特性の向上が認められず、
錫含有量が1.0wt%をこえると導電性の低下が著し
くなるためである。
The reason why the phosphorus content is set to 0.005 to 0.070 wt% is that if the phosphorus content is less than 0.005 wt%, no improvement in strength is observed and no improvement in corrosion resistance can be expected. On the other hand, if the phosphorus content exceeds 0.070 wt%, the conductivity decreases and intergranular corrosion tends to occur. Tin content 0
.. The reason for setting it to 05 to 1.0 wt% is that the tin content is 0.0
If it is less than 5wt%, no improvement in strength or spring properties is observed,
This is because when the tin content exceeds 1.0 wt%, the conductivity decreases significantly.

また、副成分としてB、Ni、Si、Fe、Pb、G0
.Cr、Mn、Te、I n、Ti、Zr、Hf、Be
、Mg、Ag、Cd、Ge、As。
In addition, as subcomponents B, Ni, Si, Fe, Pb, G0
.. Cr, Mn, Te, In, Ti, Zr, Hf, Be
, Mg, Ag, Cd, Ge, As.

sbからなる群より選択された1種又は2種以」二の含
有量の総計を0.005〜2.0wt%とする理由は、
0.005wt%未満では、強度、バネ特性の向上が認
められず、2.0wt%を超えると導電性の低下と半田
付は性の低下が著しくなるためである。
The reason why the total content of one or more selected from the group consisting of sb is 0.005 to 2.0 wt%,
This is because if it is less than 0.005 wt%, no improvement in strength or spring characteristics will be observed, and if it exceeds 2.0 wt%, the conductivity and soldering properties will be significantly reduced.

次に本発明の詳細な説明する。Next, the present invention will be explained in detail.

第1表に示した組成の合金を溶解し、厚さ30mの鋳塊
を得た。次に鋳塊を約700 ’Cで熱間圧延し、厚さ
8.0Iにした後、表面を固剤する。
An alloy having the composition shown in Table 1 was melted to obtain an ingot with a thickness of 30 m. The ingot is then hot rolled at about 700'C to a thickness of 8.0I, and the surface is hardened.

そして冷間圧延で厚さ1.0anにした後、750°C
で5分間の焼鈍を行い、最終圧延で厚さ0.5■とした
。この試料を200℃で1時間の熱処理を行い、引張強
さ、バネ限界値、バネ疲労試験、電気伝導度の測定を行
い、また、塩水噴震試験を実施し、第1表の結果を得た
After cold rolling to a thickness of 1.0 an, the temperature is 750°C.
It was annealed for 5 minutes and final rolled to a thickness of 0.5 cm. This sample was heat treated at 200℃ for 1 hour, and the tensile strength, spring limit value, spring fatigue test, and electrical conductivity were measured.Also, a salt water jet test was conducted, and the results shown in Table 1 were obtained. Ta.

塩水噴霧試験はJTS Z 2371法1こ基づいて行
い、2週間1Σ(露後の腐食減R(mdd)を求めた。
The salt spray test was conducted based on the JTS Z 2371 method, and the corrosion reduction R (mdd) after 2 weeks of exposure was determined.

第1人かられかる様に、本発明合金は引張強さ、ハネ限
界値、疲労特性、電傑伝導性及び耐食性においてバラン
スのとれた良好な特性をもち、丹銅、黄銅よりも優れて
いることがわかる。
As stated by the first person, the alloy of the present invention has well-balanced properties in terms of tensile strength, spring limit value, fatigue properties, electrical conductivity, and corrosion resistance, and is superior to red copper and brass. I understand that.

以]、のように本発明合金は丹銅、黄銅にくらべ強度、
バネ特性、耐食性の全てに優れた銅合金である。従って
、本発明合金を丹銅、黄銅に代替して電気機器用バネ、
計測器用バネ、スイッチ、コネクター等に使用すること
により、機器の小型化、軽量化及び信頼性の向上をはか
ることが可能である。
As shown in [below], the alloy of the present invention has higher strength than red copper and brass.
A copper alloy with excellent spring properties and corrosion resistance. Therefore, the alloy of the present invention can be used as a substitute for red copper or brass for springs for electrical equipment.
By using it for springs for measuring instruments, switches, connectors, etc., it is possible to make devices smaller, lighter, and more reliable.

Claims (2)

【特許請求の範囲】[Claims] (1)Zn10〜40wt%、P0.005〜0.07
0wt%、Sn0.05〜1.0wt%を含み、残部C
u及び不可避的不純物からなる高力導電銅合金。
(1) Zn10-40wt%, P0.005-0.07
0wt%, Sn0.05-1.0wt%, the balance C
A high strength conductive copper alloy consisting of u and unavoidable impurities.
(2)Zn10〜40wt%、P0.005〜0.07
0wt%、Sn0.05〜1.0wt%を含み、さらに
B、Ni、Si、Fe、Pb、Co、Cr、Mn、Te
、In、Ti、Zr、Hf、Be、Mg、Ag、Cd、
Ge、As、Sbの内何れか1種又は2種以上を合計0
.005〜2.0wt%含み、残部Cu及び不可避的不
純物からなる高力導電銅合金。
(2) Zn10-40wt%, P0.005-0.07
0wt%, Sn0.05-1.0wt%, and further contains B, Ni, Si, Fe, Pb, Co, Cr, Mn, Te
, In, Ti, Zr, Hf, Be, Mg, Ag, Cd,
A total of 0 of any one or two or more of Ge, As, and Sb
.. A high-strength conductive copper alloy containing 0.005 to 2.0 wt% and the balance consisting of Cu and inevitable impurities.
JP16778486A 1986-07-18 1986-07-18 High power conductive copper alloy Pending JPS6326320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16778486A JPS6326320A (en) 1986-07-18 1986-07-18 High power conductive copper alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16778486A JPS6326320A (en) 1986-07-18 1986-07-18 High power conductive copper alloy

Publications (1)

Publication Number Publication Date
JPS6326320A true JPS6326320A (en) 1988-02-03

Family

ID=15856046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16778486A Pending JPS6326320A (en) 1986-07-18 1986-07-18 High power conductive copper alloy

Country Status (1)

Country Link
JP (1) JPS6326320A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6264764B1 (en) * 2000-05-09 2001-07-24 Outokumpu Oyj Copper alloy and process for making same
US6471792B1 (en) 1998-11-16 2002-10-29 Olin Corporation Stress relaxation resistant brass
US6585833B1 (en) * 2000-03-14 2003-07-01 Brush Wellman, Inc. Crimpable electrical connector
WO2007091690A1 (en) * 2006-02-10 2007-08-16 Mitsubishi Shindoh Co., Ltd. Raw material brass alloy for casting of semi-molten alloy
JP2008208466A (en) * 2008-05-15 2008-09-11 Dowa Metaltech Kk Copper alloy for connector, and method for producing the same
JP2012126933A (en) * 2010-12-13 2012-07-05 Mitsubishi Materials Corp Copper alloy for electronic and electric apparatus
CN103131894A (en) * 2013-03-15 2013-06-05 宁波金田铜业(集团)股份有限公司 High-elasticity and high-conductivity copper alloy and production method thereof
CN103484714A (en) * 2013-09-16 2014-01-01 苏州金仓合金新材料有限公司 Novel vertical continuous casting unleaded copper base alloy pipe and preparation method thereof
CN103484715A (en) * 2013-09-16 2014-01-01 苏州金仓合金新材料有限公司 Novel rolled unleaded copper base alloy bar and preparation method thereof
JP2015034333A (en) * 2013-07-10 2015-02-19 三菱マテリアル株式会社 Copper alloy for electronic/electric equipment, copper alloy thin sheet for electronic/electric equipment, and conductive part and terminal for electronic/electric equipment
US9493858B2 (en) 2011-08-13 2016-11-15 Wieland-Werke Ag Copper alloy
DE102021116817A1 (en) 2021-03-25 2022-09-29 Shanghai Wuxing Copper Co., Ltd Tin-brass alloy and method of making same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6471792B1 (en) 1998-11-16 2002-10-29 Olin Corporation Stress relaxation resistant brass
US6585833B1 (en) * 2000-03-14 2003-07-01 Brush Wellman, Inc. Crimpable electrical connector
US6264764B1 (en) * 2000-05-09 2001-07-24 Outokumpu Oyj Copper alloy and process for making same
WO2007091690A1 (en) * 2006-02-10 2007-08-16 Mitsubishi Shindoh Co., Ltd. Raw material brass alloy for casting of semi-molten alloy
JP2007211310A (en) * 2006-02-10 2007-08-23 Sanbo Copper Alloy Co Ltd Raw material brass alloy for casting half-melted alloy
JP2008208466A (en) * 2008-05-15 2008-09-11 Dowa Metaltech Kk Copper alloy for connector, and method for producing the same
JP2012126933A (en) * 2010-12-13 2012-07-05 Mitsubishi Materials Corp Copper alloy for electronic and electric apparatus
US9493858B2 (en) 2011-08-13 2016-11-15 Wieland-Werke Ag Copper alloy
CN103131894A (en) * 2013-03-15 2013-06-05 宁波金田铜业(集团)股份有限公司 High-elasticity and high-conductivity copper alloy and production method thereof
CN103131894B (en) * 2013-03-15 2015-06-03 宁波金田铜业(集团)股份有限公司 High-elasticity and high-conductivity copper alloy and production method thereof
JP2015034333A (en) * 2013-07-10 2015-02-19 三菱マテリアル株式会社 Copper alloy for electronic/electric equipment, copper alloy thin sheet for electronic/electric equipment, and conductive part and terminal for electronic/electric equipment
CN103484714A (en) * 2013-09-16 2014-01-01 苏州金仓合金新材料有限公司 Novel vertical continuous casting unleaded copper base alloy pipe and preparation method thereof
CN103484715A (en) * 2013-09-16 2014-01-01 苏州金仓合金新材料有限公司 Novel rolled unleaded copper base alloy bar and preparation method thereof
DE102021116817A1 (en) 2021-03-25 2022-09-29 Shanghai Wuxing Copper Co., Ltd Tin-brass alloy and method of making same

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