JPH1143750A - Production of silver alloy - Google Patents
Production of silver alloyInfo
- Publication number
- JPH1143750A JPH1143750A JP19723897A JP19723897A JPH1143750A JP H1143750 A JPH1143750 A JP H1143750A JP 19723897 A JP19723897 A JP 19723897A JP 19723897 A JP19723897 A JP 19723897A JP H1143750 A JPH1143750 A JP H1143750A
- Authority
- JP
- Japan
- Prior art keywords
- silver
- heat treatment
- alloy
- magnesium
- subjected
- 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.)
- Granted
Links
- 229910001316 Ag alloy Inorganic materials 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052709 silver Inorganic materials 0.000 claims abstract description 20
- 239000004332 silver Substances 0.000 claims abstract description 20
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 13
- 239000011777 magnesium Substances 0.000 claims abstract description 13
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 10
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005482 strain hardening Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 102220253765 rs141230910 Human genes 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高強度と高導電性
を兼ね備え、さらに、良好な加工性（伸び）をも併せ持
つ、各種電気接点材料や、酸化物超電導線等のセラミッ
クス複合線材のシース材、補強材等として有用な、銀合
金の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various electric contact materials and sheaths for ceramic composite wires such as oxide superconducting wires, which have both high strength and high conductivity and also have good workability (elongation). The present invention relates to a method for producing a silver alloy, which is useful as a material, a reinforcing material, and the like.
【０００２】[0002]
【従来の技術】近年、各種電気接点材料や、酸化物超電
導線等のセラミックス複合線材のシース材、補強材等の
用途に、高強度と高導電性を有し、かつ、加工性（伸
び）にも優れた材料の要求がある。2. Description of the Related Art In recent years, it has high strength and high electrical conductivity, and has good workability (elongation) for various electrical contact materials, sheath materials and reinforcing materials for ceramic composite wires such as oxide superconducting wires. There is also a demand for superior materials.
【０００３】ところで、従来より高い導電性を有するも
のとして銀が良く知られているが、銀は強度が低いとい
う難点がある。そこで、銀を他の金属と合金化したり、
あるいは、銀の高温で酸素を透過する性質を利用して、
銀に微量のマグネシウムを配合し、その酸化物を選択的
に生成させることにより、銀の強度を高める方法が開発
され、特に、後者は、選択酸化法と称し、銀の優れた導
電性をさほど低下させることなく強度を付与することが
できることから注目されている。[0003] By the way, silver is well known as having higher conductivity than before, but silver has a drawback that its strength is low. Therefore, silver can be alloyed with other metals,
Alternatively, utilizing the property of silver that transmits oxygen at high temperatures,
A method has been developed to increase the strength of silver by blending a small amount of magnesium with silver and selectively generating its oxide.The latter, in particular, is referred to as the selective oxidation method, which significantly enhances the excellent conductivity of silver. It is noted that strength can be imparted without lowering.
【０００４】しかしながら、この選択酸化法で高い強度
を得るためには、マグネシウムを多量に添加しなければ
ならず、その結果、脆くなって加工性に乏しいものとな
る問題がある。[0004] However, in order to obtain high strength by this selective oxidation method, a large amount of magnesium must be added, and as a result, there is a problem that the material becomes brittle and poor in workability.
【０００５】[0005]
【発明が解決しようとする課題】このように、近年、高
強度、高導電性で、かつ、加工性にも優れた材料の要求
があり、選択酸化法により銀に強度を付与したものが注
目されているが、高い強度を得ようとすると、酸化元素
（マグネシウム）を多量に添加しなければならず、加工
性が低下するという問題がある。As described above, in recent years, there has been a demand for a material having high strength, high conductivity, and excellent workability, and a material obtained by imparting strength to silver by a selective oxidation method has attracted attention. However, in order to obtain high strength, a large amount of an oxide element (magnesium) must be added, and there is a problem that workability is reduced.
【０００６】本発明はこのような点に対処してなされた
もので、銀の導電性を低下させることなく高い強度を付
与することができ、しかも、加工性も良好な銀合金を製
造することができる方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to produce a silver alloy which can provide high strength without lowering the conductivity of silver and has good workability. The purpose is to provide a method that can do.
【０００７】[0007]
【課題を解決するための手段】本発明の銀合金の製造方
法は、マグネシウム0.05〜0.3 重量％およびアンチモン
0.05〜0.8 重量％を含有し、残部が銀および不可避的不
純物からなる銀合金を溶解鋳造した後、冷間加工を施
し、次いで、酸化雰囲気中で 550〜900 ℃の温度で 1〜
250 時間熱処理することを特徴とする。According to the present invention, there is provided a method for producing a silver alloy, comprising the steps of:
After melting and casting a silver alloy containing 0.05 to 0.8% by weight and the balance being silver and unavoidable impurities, cold working is performed, and then 1 to 550 to 900 ° C. in an oxidizing atmosphere.
It is characterized by heat treatment for 250 hours.
【０００８】本発明においては、銀に添加する微量成分
としてマグネシウムとアンチモンを併用したことによ
り、導電性のみならず、加工性をも低下させることな
く、銀に高い強度を付与することが可能になり、高導電
性、高強度であって、かつ、加工性にも優れた銀合金を
得ることができる。In the present invention, the combined use of magnesium and antimony as minor components added to silver makes it possible to impart high strength to silver without deteriorating not only conductivity but also processability. Thus, a silver alloy having high conductivity, high strength, and excellent workability can be obtained.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態につい
て記載する。Embodiments of the present invention will be described below.
【００１０】本発明においては、まず、マグネシウム0.
05〜0.3 重量％およびアンチモン0.05〜0.8 重量％を含
有し、残部が銀および不可避的不純物からなる銀合金を
溶解鋳造する。[0010] In the present invention, first, magnesium 0.1.
A silver alloy containing 0.05 to 0.3% by weight and 0.05 to 0.8% by weight of antimony, the balance being silver and unavoidable impurities is melt-cast.
【００１１】ここで合金成分の組成を上述のような範囲
に限定したのは、この範囲のものが最も強度と導電性の
バランスが良く、かつ加工性も良好であるからである。
すなわち、マグネシウムは強度を高めるために添加する
ものであり、マグネシウムの添加量が0.05重量％未満で
は、強度が不十分となり、0.3 重量％を越えると加工性
が低下してくる。また、アンチモンは主として加工性を
改善するために添加するものであり、アンチモンの添加
量が0.05重量％未満では、加工性を改善する効果が小さ
く、また、0.8 重量％を越えると、加工性が逆に低下す
るようになるばかりか、強度も低下する。マグネシウム
添加量のより好ましい範囲は、 0.1〜0.2重量％であ
り、アンチモンは 0.2〜0.6 重量％の範囲である。The reason why the composition of the alloy component is limited to the above-mentioned range is that a composition in this range has the best balance between strength and conductivity and also has good workability.
That is, magnesium is added to increase the strength. If the amount of magnesium is less than 0.05% by weight, the strength becomes insufficient, and if it exceeds 0.3% by weight, the workability is reduced. Antimony is mainly added to improve processability. When the amount of antimony is less than 0.05% by weight, the effect of improving processability is small, and when the amount exceeds 0.8% by weight, processability is reduced. On the contrary, not only does it decrease, but also the strength decreases. A more preferred range of the amount of magnesium is 0.1 to 0.2% by weight, and that of antimony is in a range of 0.2 to 0.6% by weight.
【００１２】次に、この鋳造合金に冷間加工を施す。こ
こでの加工度としては、減面率80％以上が好ましく、95
％以上とするとより好ましい。Next, the cast alloy is subjected to cold working. The degree of processing here is preferably 80% or more in area reduction rate.
% Is more preferable.
【００１３】続いて、この冷間加工を施した合金に、酸
化雰囲気中で 550〜900 ℃の温度で1〜250 時間の熱処
理を施す。この工程は、高強度を得るため、銀のマトリ
ックス中にマグネシウムおよびアンチモンの内部酸化に
よる酸化物粒子を生成させるためのものであるが、良好
な加工性を得る上でも重要な工程である。すなわち、熱
処理温度が 550℃未満であるか、もしくは熱処理時間が
1時間未満であると、酸化物粒子の生成が不十分で高強
度が得られず、また、熱処理温度が900 ℃を越えるか、
もしくは熱処理時間が 250時間を越えると、強度が逆に
低下するようになり、さらに加工性も低下してくる。Subsequently, the cold-worked alloy is subjected to a heat treatment at a temperature of 550 to 900 ° C. for 1 to 250 hours in an oxidizing atmosphere. This step is for generating oxide particles by internal oxidation of magnesium and antimony in a silver matrix in order to obtain high strength, but is also an important step in obtaining good workability. That is, the heat treatment temperature is less than 550 ° C or the heat treatment time
If the heating time is less than 1 hour, the oxide particles are insufficiently generated and high strength cannot be obtained, and the heat treatment temperature exceeds 900 ° C.
Alternatively, if the heat treatment time exceeds 250 hours, the strength will conversely decrease, and the workability will also decrease.
【００１４】なお、本発明においては、この熱処理工程
を、 550℃以上、 750℃未満の温度で 1〜50時間熱処理
する工程と、この後 750℃以上、900 ℃以下の温度で 1
〜200 時間熱処理する工程を順に行う二段階熱処理とす
ることがより好ましく、かかる二段階の熱処理を行うこ
とにより、より高い強度を得ることが可能となる。In the present invention, this heat treatment step is performed at a temperature of 550 ° C. or more and less than 750 ° C. for 1 to 50 hours, and thereafter, at a temperature of 750 ° C. or more and 900 ° C. or less.
It is more preferable to perform a two-step heat treatment in which the heat treatment steps are sequentially performed for up to 200 hours. By performing the two-step heat treatment, higher strength can be obtained.
【００１５】このようにして得られる銀合金は、高強度
および高導電性であって、かつ、加工性にも優れるた
め、各種電気接点材料として、また、酸化物超電導線等
のセラミックス複合線材のシース材や補強材等の材料と
して有用である。The silver alloy thus obtained has high strength and high electrical conductivity and is excellent in workability, so that it can be used as a material for various electrical contacts and for ceramic composite wires such as oxide superconducting wires. It is useful as a material such as a sheath material and a reinforcing material.
【００１６】[0016]
【実施例】次に本発明の実施例を記載する。Next, examples of the present invention will be described.
【００１７】実施例１〜１１ 表１に示す組成の銀合金を、水平連続鋳造機によって連
続鋳造して 8mmφの鋳造ロッドを製造した。次いで、得
られた各鋳造ロッドに減面率98％の冷間伸線加工を施し
た後、酸化雰囲気下で同表に示す条件の熱処理を行い、
線径 1mmφの銀合金線を製造した。Examples 1 to 11 Silver alloys having the compositions shown in Table 1 were continuously cast by a horizontal continuous casting machine to produce cast rods of 8 mmφ. Next, after performing cold wire drawing with a surface reduction rate of 98% on each of the obtained cast rods, a heat treatment under the conditions shown in the same table is performed in an oxidizing atmosphere.
A silver alloy wire having a wire diameter of 1 mm was manufactured.
【００１８】また、比較のために、合金組成もしくは熱
処理条件を本発明の範囲外とした以外は、実施例と同様
にして線径 1mmφの銀合金線を製造した。For comparison, a silver alloy wire having a wire diameter of 1 mmφ was manufactured in the same manner as in the example except that the alloy composition or the heat treatment conditions were out of the range of the present invention.
【００１９】この後、上記各実施例および各比較例で得
られた銀合金線の引張強さおよび伸びを測定した。測定
結果を表１に併せ示す。なお、引張強さは、インストロ
ン型引張試験機を用いて 10mm/分の引張速度で測定した
ものである。また、伸びは、引張試験により破断した試
料を評点距離 100mmの突合わせ伸びで測定したものであ
る。Thereafter, the tensile strength and elongation of the silver alloy wires obtained in the above Examples and Comparative Examples were measured. The measurement results are shown in Table 1. The tensile strength was measured using an Instron tensile tester at a tensile speed of 10 mm / min. The elongation was measured by butt elongation of a sample broken by a tensile test at a rating distance of 100 mm.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【発明の効果】以上の実施例からも明らかなように、本
発明の銀合金の製造方法によれば、銀に添加する微量成
分としてマグネシウムおよびアンチモンを併用するとと
もに、その後の加工条件を最適化したので、高導電性、
高強度であって、かつ、加工性にも優れた銀合金を得る
ことができる。As is apparent from the above examples, according to the method for producing a silver alloy of the present invention, magnesium and antimony are used in combination as trace components to be added to silver, and the subsequent processing conditions are optimized. High conductivity,
A silver alloy having high strength and excellent workability can be obtained.
【００２２】[0022]
フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ２２Ｆ 1/00 ６８１ Ｃ２２Ｆ 1/00 ６８１ ６８５ ６８５Ｚ ６８６ ６８６Ａ ６９１ ６９１Ｂ ６９１Ｃ Continued on the front page (51) Int.Cl. 6 Identification code FI C22F 1/00 681 C22F 1/00 681 685 685Z 686 686A 691 691B 691C
Claims (2)
ンチモン0.05〜0.8重量％を含有し、残部が銀および不
可避的不純物からなる銀合金を溶解鋳造した後、冷間加
工を施し、次いで、酸化雰囲気中で 550〜900 ℃の温度
で 1〜250 時間熱処理することを特徴とする銀合金の製
造方法。1. A silver alloy containing 0.05 to 0.3% by weight of magnesium and 0.05 to 0.8% by weight of antimony, the balance being composed of silver and unavoidable impurities, is subjected to cold working, and then subjected to cold working. A heat treatment at a temperature of 550 to 900 ° C. for 1 to 250 hours.
て、冷間加工後の熱処理は、 550℃以上、 750℃未満の
温度で 1〜50時間熱処理する工程と、 750℃以上、900
℃以下の温度で 1〜200 時間熱処理する工程を順に行う
ことからなることを特徴とする銀合金の製造方法。2. The method for producing a silver alloy according to claim 1, wherein the heat treatment after the cold working is a heat treatment at a temperature of 550 ° C. or more and less than 750 ° C. for 1 to 50 hours;
A method for producing a silver alloy, comprising sequentially performing a step of heat-treating at a temperature of not more than ℃ for 1 to 200 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19723897A JP3483736B2 (en) | 1997-07-23 | 1997-07-23 | Production method of silver alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19723897A JP3483736B2 (en) | 1997-07-23 | 1997-07-23 | Production method of silver alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1143750A true JPH1143750A (en) | 1999-02-16 |
| JP3483736B2 JP3483736B2 (en) | 2004-01-06 |
Family
ID=16371155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19723897A Expired - Fee Related JP3483736B2 (en) | 1997-07-23 | 1997-07-23 | Production method of silver alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3483736B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002363665A (en) * | 2001-06-01 | 2002-12-18 | Tokuriki Honten Co Ltd | METHOD FOR MANUFACTURING Ag-OXIDE ELECTRIC CONTACTOR MATERIAL, AND PRODUCT THEREOF |
| JP2012102401A (en) * | 2011-11-09 | 2012-05-31 | Tokuriki Honten Co Ltd | Ag-OXIDE-BASED ELECTRICAL CONTACT MATERIAL |
| CN105261422A (en) * | 2015-10-30 | 2016-01-20 | 西北有色金属研究院 | Preparation method of high-strength high-conductivity copper-silver alloy wire |
| EP2949780A4 (en) * | 2013-01-23 | 2016-11-16 | Mitsubishi Materials Corp | Ag ALLOY FILM-FORMING SPUTTERING TARGET, Ag ALLOY FILM, Ag ALLOY REFLECTIVE FILM, Ag ALLOY ELECTROCONDUCTIVE FILM, Ag ALLOY SEMI-PERMEABLE FILM |
-
1997
- 1997-07-23 JP JP19723897A patent/JP3483736B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002363665A (en) * | 2001-06-01 | 2002-12-18 | Tokuriki Honten Co Ltd | METHOD FOR MANUFACTURING Ag-OXIDE ELECTRIC CONTACTOR MATERIAL, AND PRODUCT THEREOF |
| JP2012102401A (en) * | 2011-11-09 | 2012-05-31 | Tokuriki Honten Co Ltd | Ag-OXIDE-BASED ELECTRICAL CONTACT MATERIAL |
| EP2949780A4 (en) * | 2013-01-23 | 2016-11-16 | Mitsubishi Materials Corp | Ag ALLOY FILM-FORMING SPUTTERING TARGET, Ag ALLOY FILM, Ag ALLOY REFLECTIVE FILM, Ag ALLOY ELECTROCONDUCTIVE FILM, Ag ALLOY SEMI-PERMEABLE FILM |
| CN105261422A (en) * | 2015-10-30 | 2016-01-20 | 西北有色金属研究院 | Preparation method of high-strength high-conductivity copper-silver alloy wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3483736B2 (en) | 2004-01-06 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
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