JPH07278700A - Production of oxide dispersion silver-based composite alloy - Google Patents
Production of oxide dispersion silver-based composite alloyInfo
- Publication number
- JPH07278700A JPH07278700A JP9370994A JP9370994A JPH07278700A JP H07278700 A JPH07278700 A JP H07278700A JP 9370994 A JP9370994 A JP 9370994A JP 9370994 A JP9370994 A JP 9370994A JP H07278700 A JPH07278700 A JP H07278700A
- Authority
- JP
- Japan
- Prior art keywords
- silver
- based composite
- composite material
- alloy
- oxide
- 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
Landscapes
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高温強度が必要とされ
る部材に用いる酸化物分散銀基複合材の製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an oxide-dispersed silver-based composite material used for members requiring high temperature strength.
【０００２】[0002]
【従来の技術】従来、酸化物粉末、例えばＡｌ、Ｔｉ、
Ｍｇ、Ｓｒ、Ｙ、Ｓｍの酸化物粉末やそれらの複合酸化
物は焼結しにくく、焼結しても脆く、そのまま塑性加工
できないものであった。その為、Ａｇ等のテープ、管に
て被覆し、加工を行なう方法があるが、焼結温度が高い
ので、軟化した外被Ａｇとの加工性の違い過ぎにより、
塑性加工がうまくいかなかった。2. Description of the Related Art Conventionally, oxide powders such as Al, Ti,
The oxide powders of Mg, Sr, Y, and Sm and their composite oxides were difficult to sinter, were brittle when sintered, and could not be plastically processed as they were. Therefore, there is a method of coating with a tape or tube of Ag or the like and performing processing, but since the sintering temperature is high, there is too much workability with the softened coating Ag,
Plastic processing did not go well.
【０００３】[0003]
【発明が解決しようとする課題】そこで本発明は、焼結
体の焼結処理の後でも焼結体との一体加工に追従できる
外被材として用いることのできる酸化物分散銀基複合材
を製造する方法を提供しようとするものである。Therefore, the present invention provides an oxide-dispersed silver-based composite material that can be used as a jacket material that can follow the integral processing with the sintered body even after the sintering treatment of the sintered body. It is intended to provide a manufacturing method.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
の本発明の酸化物分散銀基複合材の製造方法の１つは、
銀にＴｉ、Ｚｒ、Ｍｇ、Ａｌ、Ｓｒ、Ｙ及びＳｍの内の
少なくとも１種を合計で 0.005〜 1.0wt％添加した固溶
体合金を作り、次にパイプ又はテープに押出し加工し、
然る後酸化することを特徴とするものである。この製造
方法に於いて、押出し加工と酸化の順序は、酸化、押し
加工と逆の順序でも良い。本発明の酸化物分散銀基複合
材の製造方法の他の１つは、銀に、Ｔｉ、Ｚｒ、Ｍｇ、
Ａｌ、Ｓｒ、Ｙ及びＳｍの内の少なくとも１種を合計で
0.005〜 1.0wt％添加した合金粉末を作り、次に圧縮成
形し、次いで酸化焼結し、然る後押出し圧縮、スェージ
ング、穴明けを行なうことを特徴とするものである。こ
の製造方法に於いて、圧縮成形と酸化焼結の順序は、酸
化焼結、圧縮成形と逆の順序でも良い。本発明の酸化物
分散銀基複合材の製造方法のさらに他の１つは、銀に、
Ｔｉ、Ｚｒ、Ｍｇ、Ａｌ、Ｓｒ、Ｙ及びＳｍの内の少な
くとも１種を合計で 0.005〜1.0wt％添加した合金を作
り、次にこの合金を押出、伸線加工して線材を作り、次
いでこの線材を定尺に切断してチップとし、次にこのチ
ップを酸化し、然る後圧縮、焼結を繰り返して押出し加
工することを特徴とするものである。本発明の酸化物分
散銀基複合材の製造方法に於いて、銀に、Ｔｉ、Ｚｒ、
Ｍｇ、Ａｌ、Ｓｒ、Ｙ及びＳｍの内の少なくとも１種を
合計で 0.005〜 1.0wt％添加する理由は、外被材として
の高温強度を高くするためで、 0.005wt％未満ではその
効果が無く、またアトマイズ法により合金粉末を作る
際、 1.0wt％を超えるとセラミックノズルにくっつき、
うまくアトマイズできず、合金粉末の場合焼結しにく
く、合金の場合塑性加工しにくくなるからである。One of the methods for producing an oxide-dispersed silver-based composite material of the present invention for solving the above-mentioned problems is as follows.
A solid solution alloy in which at least one of Ti, Zr, Mg, Al, Sr, Y and Sm is added in a total amount of 0.005 to 1.0 wt% to silver is prepared, and then extruded into a pipe or tape,
Then, it is characterized by being oxidized. In this manufacturing method, the order of extrusion and oxidation may be reverse to that of oxidation and pressing. Another method for producing an oxide-dispersed silver-based composite material according to the present invention is to use silver, Ti, Zr, Mg,
At least one of Al, Sr, Y and Sm in total
It is characterized in that alloy powder added with 0.005 to 1.0 wt% is prepared, then compression molded, then oxidatively sintered, and then extrusion compression, swaging, and punching are performed. In this manufacturing method, the order of compression molding and oxidative sintering may be the reverse order of oxidative sintering and compression molding. Still another one of the methods for producing the oxide-dispersed silver-based composite material of the present invention is to add silver to
An alloy in which at least one of Ti, Zr, Mg, Al, Sr, Y and Sm is added in a total amount of 0.005 to 1.0 wt% is made, and then this alloy is extruded and drawn to form a wire, This wire rod is cut into a regular size to form a chip, and then the chip is oxidized, and thereafter compression and sintering are repeated to perform extrusion processing. In the method for producing an oxide-dispersed silver-based composite material of the present invention, silver is mixed with Ti, Zr,
The reason for adding at least one of Mg, Al, Sr, Y and Sm in a total amount of 0.005 to 1.0 wt% is to increase the high temperature strength of the jacket material. , When making alloy powder by atomization method, if it exceeds 1.0 wt%, it will stick to the ceramic nozzle,
This is because atomization cannot be performed well, it is difficult to sinter in the case of alloy powder, and it becomes difficult to perform plastic working in the case of alloy.
【０００５】[0005]
【作用】本発明の酸化物分散銀基複合材の製造方法によ
れば、銀に、Ｔｉ、Ｚｒ、Ｍｇ、Ａｌ、Ｓｒ、Ｙ及びＳ
ｍの内の少なくとも１種が合計で 0.005〜 1.0wt％が酸
化された酸化物が分散して、外被材として高温強度が高
く、特に高温での引張強さ、耐力に優れ、その上機械的
強度も高い酸化物分散銀基複合材を得ることができる。
従って、この酸化物分散銀基複合材を、焼結しにくい又
は焼結しても脆く加工困難な材料よりなる芯材の外被材
として用いることができ、しかも高温で前記芯材と一体
に加工することができ、その際外被材は軟化したり、変
形したりすることが極めて少ない。According to the method for producing an oxide-dispersed silver-based composite material of the present invention, silver is mixed with Ti, Zr, Mg, Al, Sr, Y and S.
At least one of m has a total amount of 0.005 to 1.0 wt% oxidized oxide dispersed, and has high high-temperature strength as a jacket material, especially excellent tensile strength and proof stress at high temperature. It is possible to obtain an oxide-dispersed silver-based composite material having high dynamic strength.
Therefore, this oxide-dispersed silver-based composite material can be used as a jacket material for a core material made of a material that is difficult to sinter or that is brittle and difficult to process even when sintered, and is integrated with the core material at a high temperature. It can be worked, with the covering material being extremely unlikely to soften or deform.
【０００６】[0006]
【実施例】本発明の酸化物分散銀基複合材の製造方法の
１つの実施例について説明する。下記の表１の左欄に示
す実施例１〜４の成分組成の固溶体合金の径 110mm、長
さ200mmのインゴットを作り、次に面削後押出し加工、
引抜き加工を行なって最終的に内径４mm、外径６mmのパ
イプとなし、然る後 750℃、３気圧で16時間酸化して、
酸化物分散銀基複合材を得た。次に本発明の酸化物分散
銀基複合材の製造方法の他の１つの実施例について説明
する。下記の表１の左欄に示す実施例５〜８の成分組成
の合金粉末をＮ2 雰囲気でアトマイズ法により作り、80
℃真空中で乾燥した後 100メッシュ以下に分級し、次に
50トンで圧縮成形し、次いで大気中、 800℃で７時間か
けて酸化焼結し、然る後押出し圧縮して直径 100mmの棒
材となし、さらに面削、スェージング、穴明けを行なっ
て、内径４mm、外径６mmのパイプとなして酸化物分散銀
基複合材を得た。次いで本発明の酸化物分散銀基複合材
の製造方法のさらに他の１つの実施例について説明す
る。下記の表１の左欄に示す実施例９〜12の成分組成の
合金を作り、次にこの合金を押出、伸線加工して直径２
mmの線材を作り、次いでこの線材を長さ２mmに切断して
チップとし、次いでこのチップを 750℃、５気圧で24時
間かけて酸化し、 280トンで圧縮成形し、然る後大気中
850℃で４時間かけて焼結し、 450トンで圧縮すること
を３回繰り返した後、 650℃、 180Kg/cm2で熱間圧縮
し、押出加工して内径４mm、外径６mmのパイプとなして
酸化物分散銀基複合材を得た。こうして得た実施例１〜
12の酸化物分散銀基複合材と従来外被材として使われて
きたＡｇとの引張り強さ、伸び率、硬さ、 0.2％耐力
（伸び過ぎないように芯材に追従できる６Kgf/mm2 以上
の力）を大気中 850℃、２時間焼鈍後、室温で測定した
処、下記の表１の右欄に示すような結果を得た。EXAMPLE One example of the method for producing an oxide-dispersed silver-based composite material of the present invention will be described. Ingots having a diameter of 110 mm and a length of 200 mm of solid solution alloys having the composition of Examples 1 to 4 shown in the left column of Table 1 below were prepared, and then extruded after chamfering,
Finally, it was drawn to form a pipe with an inner diameter of 4 mm and an outer diameter of 6 mm, and then it was oxidized at 750 ° C and 3 atm for 16 hours,
An oxide-dispersed silver-based composite material was obtained. Next, another embodiment of the method for producing an oxide-dispersed silver-based composite material of the present invention will be described. The alloy powder having the composition of Examples 5 to 8 shown in the left column of Table 1 below was prepared by an atomizing method in an N 2 atmosphere,
After drying in vacuum, classify to 100 mesh or less, then
It is compression-molded at 50 tons, then oxidatively sintered in the air at 800 ° C for 7 hours, then extruded and compressed into a rod with a diameter of 100 mm, then chamfered, swaged, and punched. An oxide-dispersed silver-based composite material was obtained by forming a pipe having an inner diameter of 4 mm and an outer diameter of 6 mm. Next, still another embodiment of the method for producing an oxide-dispersed silver-based composite material of the present invention will be described. Alloys having the component compositions of Examples 9 to 12 shown in the left column of Table 1 below were prepared, and then this alloy was extruded and drawn to have a diameter of 2
mm wire rod is made, then this wire rod is cut to a length of 2 mm to make a chip, and then this chip is oxidized at 750 ° C and 5 atm for 24 hours, compression molded at 280 tons, and then in air.
After sintering at 850 ℃ for 4 hours and compressing at 450 tons three times, hot compress at 650 ℃ and 180Kg / cm 2 and extruding to make a pipe with inner diameter 4mm and outer diameter 6mm. Thus, an oxide-dispersed silver-based composite material was obtained. Examples 1 to 1 thus obtained
Tensile strength, elongation, hardness, 0.2% proof strength of 12 oxide-dispersed silver-based composite materials and Ag, which has been used as a conventional covering material (6 kgf / mm 2 that can follow the core material so as not to extend too much) The above force) was annealed in air at 850 ° C. for 2 hours and then measured at room temperature, and the results shown in the right column of Table 1 below were obtained.
【０００７】[0007]
【表１】 [Table 1]
【０００８】上記の表１の右欄の結果で明らかなように
実施例１〜12の酸化物分散銀基複合材は、従来外被材と
して使われてきたＡｇに比べ、引張り強さ、伸び率、硬
さ、0.2％耐力が優れていることが判る。As is clear from the results in the right column of Table 1, the oxide-dispersed silver-based composite materials of Examples 1 to 12 have tensile strength and elongation as compared with Ag which has been conventionally used as a jacket material. It is found that the rate, hardness and 0.2% proof stress are excellent.
【０００９】[0009]
【発明の効果】以上の通り本発明の酸化物分散銀基複合
材の製造方法によれば、引張り強さ、伸び率、硬さ、
0.2％耐力等機械的強度に優れ、焼結しにくい又は焼結
しても脆く加工困難な材料よりなる芯材の外被材として
用いることができ、しかも高温で前記芯材と一体に加工
することができ、その際軟化したり、変形したりするこ
とが極めて少ない酸化物分散銀基複合材を得ることがで
きる。As described above, according to the method for producing an oxide-dispersed silver-based composite material of the present invention, the tensile strength, elongation rate, hardness,
It has excellent mechanical strength such as 0.2% proof stress, and it can be used as a jacket material for a core material made of a material that is difficult to sinter or that is brittle and difficult to process even if it is sintered. It is possible to obtain an oxide-dispersed silver-based composite material which is hardly softened or deformed at that time.
Claims (5)
Ｙ及びＳｍの内の少なくとも１種を合計で 0.005〜 1.0
wt％添加した固溶体合金を作り、次にパイプ又はテープ
に押出加工し、然る後酸化することを特徴とする酸化物
分散銀基複合材の製造方法。1. Silver, Ti, Zr, Mg, Al, Sr,
At least one of Y and Sm is 0.005 to 1.0 in total
A method for producing an oxide-dispersed silver-based composite material, which comprises producing a solid solution alloy with wt% added, then extruding into a pipe or tape, and then oxidizing.
Ｙ及びＳｍの内の少なくとも１種を合計で 0.005〜 1.0
wt％添加した固溶体合金を作り、次に酸化し、次いでパ
イプ又はテープに押出加工することを特徴とする酸化物
分散銀基複合材の製造方法。2. Silver, Ti, Zr, Mg, Al, Sr,
At least one of Y and Sm is 0.005 to 1.0 in total
A method for producing an oxide-dispersed silver-based composite material, which comprises producing a solid solution alloy with wt% added, then oxidizing it, and then extruding it into a pipe or a tape.
Ｙ及びＳｍの内の少なくとも１種を合計で 0.005〜 1.0
wt％添加した合金粉末を作り、次に圧縮成形し、次いで
酸化焼結し、然る後押出し圧縮、スェージング、穴明け
を行なうことを特徴とする酸化物分散銀基複合材の製造
方法。3. Silver, Ti, Zr, Mg, Al, Sr,
At least one of Y and Sm is 0.005 to 1.0 in total
A method for producing an oxide-dispersed silver-based composite material, which comprises producing an alloy powder with wt% added, compression-molding, then oxidative-sintering, and then performing extrusion compression, swaging, and punching.
Ｙ及びＳｍの内の少なくとも１種を合計で 0.005〜 1.0
wt％添加した合金粉末を作り、次に酸化焼結し、次いで
圧縮成形し、然る後押出し圧縮、スェージング、穴明け
を行なうことを特徴とする酸化物分散銀基複合材の製造
方法。4. Silver, Ti, Zr, Mg, Al, Sr,
At least one of Y and Sm is 0.005 to 1.0 in total
A method for producing an oxide-dispersed silver-based composite material, which comprises producing an alloy powder with wt% added, then performing oxidative sintering, then compression-molding, and then performing extrusion compression, swaging, and punching.
Ｙ及びＳｍの内の少なくとも１種を合計で 0.005〜 1.0
wt％添加した合金を作り、次にこの合金を押出、伸線加
工して線材を作り、次いでこの線材を定尺に切断してチ
ップとし、次にこのチップを酸化し、然る後圧縮、焼結
を繰り返して押出加工することを特徴とする酸化物分散
銀基複合材の製造方法。5. Silver, Ti, Zr, Mg, Al, Sr,
At least one of Y and Sm is 0.005 to 1.0 in total
An alloy with wt% added is made, then this alloy is extruded and drawn to form a wire rod, then this wire rod is cut into regular lengths into chips, and then these chips are oxidized and then compressed, A method for producing an oxide-dispersed silver-based composite material, which comprises repeating sintering and extrusion processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09370994A JP3294431B2 (en) | 1994-04-07 | 1994-04-07 | Method for producing oxide-dispersed silver-based composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09370994A JP3294431B2 (en) | 1994-04-07 | 1994-04-07 | Method for producing oxide-dispersed silver-based composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07278700A true JPH07278700A (en) | 1995-10-24 |
| JP3294431B2 JP3294431B2 (en) | 2002-06-24 |
Family
ID=14089951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09370994A Expired - Fee Related JP3294431B2 (en) | 1994-04-07 | 1994-04-07 | Method for producing oxide-dispersed silver-based composite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3294431B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1219717A1 (en) * | 2000-12-20 | 2002-07-03 | Allgemeine Gold- Und Silberscheideanstalt Ag | Silver alloy |
| JP2006206963A (en) * | 2005-01-28 | 2006-08-10 | Kansai Pipe Kogyo Kk | Alumina dispersion-strengthened silver rod, its production method, electric contact material and relay for electric vehicle |
| EP2055794A1 (en) * | 2000-07-03 | 2009-05-06 | Kazuo Ogasa | Hard precious metal alloy member and method of manufacturing same |
-
1994
- 1994-04-07 JP JP09370994A patent/JP3294431B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2055794A1 (en) * | 2000-07-03 | 2009-05-06 | Kazuo Ogasa | Hard precious metal alloy member and method of manufacturing same |
| EP1219717A1 (en) * | 2000-12-20 | 2002-07-03 | Allgemeine Gold- Und Silberscheideanstalt Ag | Silver alloy |
| JP2006206963A (en) * | 2005-01-28 | 2006-08-10 | Kansai Pipe Kogyo Kk | Alumina dispersion-strengthened silver rod, its production method, electric contact material and relay for electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3294431B2 (en) | 2002-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4398969A (en) | Shape-memory alloy based on copper, zinc and aluminum and process for preparing it | |
| JPS63310903A (en) | Production of long-sized sintered body product | |
| US5100865A (en) | Fabrication of sintered oxide superconducting wires | |
| AT406349B (en) | METHOD FOR PRODUCING A METAL POWDER WITH AN OXYGEN CONTENT LESS THAN 300 PPM, AND METHOD FOR PRODUCING MOLDED POWDER METALURGICAL METAL PRODUCTS FROM THIS METAL POWDER | |
| JPH07278700A (en) | Production of oxide dispersion silver-based composite alloy | |
| JP2007113107A (en) | Metal formed body and its production method | |
| US4112197A (en) | Manufacture of improved electrical contact materials | |
| JP3067402B2 (en) | Manufacturing method of metal ring | |
| JP3122922B2 (en) | Method of manufacturing silver-based composite tube | |
| JP3191434B2 (en) | Method for sintering precious metal mixed powder containing silver and copper | |
| JP3236470B2 (en) | Silver-based composite material tape and method for producing the same | |
| JPH07188702A (en) | Ag-base alloy powder and its production | |
| JPH04224601A (en) | Manufacture of titanium-based composite material | |
| JPH08283882A (en) | Production of fine wire for producing ag-tin oxide-base electrical contact | |
| JPH01272730A (en) | Manufacture of whisker reinforced metallic sintered member | |
| JPS61281858A (en) | Manufacture of ag-nio type electrical contact point material | |
| JP2590096B2 (en) | Manufacturing method of sintered wire | |
| JP2670119B2 (en) | Manufacturing method of electrical contact material | |
| JPH01110907A (en) | Method for forming ceramic coil spring | |
| JPS6147894B2 (en) | ||
| JPH0791606B2 (en) | Method for producing Ag oxide-based electrical contact material | |
| JPH07300635A (en) | Silver base composite material tube and its production | |
| JPH04141916A (en) | Manufacture of nb3sn compound superconducting wire | |
| JPH0791605B2 (en) | Method for producing Ag oxide-based electrical contact material | |
| JPS598009B2 (en) | Method for manufacturing electrical contact materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |