JPH08134560A - Melt casting of alloy containing agcl - Google Patents
Melt casting of alloy containing agclInfo
- Publication number
- JPH08134560A JPH08134560A JP29566494A JP29566494A JPH08134560A JP H08134560 A JPH08134560 A JP H08134560A JP 29566494 A JP29566494 A JP 29566494A JP 29566494 A JP29566494 A JP 29566494A JP H08134560 A JPH08134560 A JP H08134560A
- Authority
- JP
- Japan
- Prior art keywords
- agcl
- alloy containing
- casting
- reducing agent
- mold
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、Ｃｕなどから成る合金
の評価サンプルを作る為の溶解鋳造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a melt casting method for making an evaluation sample of an alloy composed of Cu or the like.
【０００２】[0002]
【従来の技術】Ｃｕを主成分とする元材には不可避な不
純物としてＡｇＣｌが含まれている。この為、Ｃｕを主
成分とする合金を、ルツボ内で溶解し、溶湯を鋳型に鋳
込んだ際、鋳型にＡｇＣｌが付着し、鋳型が早期に使用
できなくなり、鋳型の寿命が短くなっていた。2. Description of the Related Art A base material containing Cu as a main component contains AgCl as an unavoidable impurity. Therefore, when the alloy containing Cu as a main component was melted in the crucible and the molten metal was cast into the mold, AgCl adhered to the mold and the mold could not be used early and the life of the mold was shortened. .
【０００３】[0003]
【発明が解決しようとする課題】そこで本発明は、鋳型
にＡｇＣｌが付着しないように、鋳造する溶湯からＡｇ
Ｃｌを無くして、ＡｇＣｌを含む合金を溶解鋳造するこ
とのできる方法を提供しようとするものである。Therefore, in the present invention, in order to prevent AgCl from adhering to the mold, Ag is removed from the molten metal to be cast.
It is an object of the present invention to provide a method capable of melting and casting an alloy containing AgCl without using Cl.
【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ＡｇＣｌを含む合金の溶解鋳造方法は、Ａｇ
Ｃｌを含む合金をルツボ内で溶解し、次に溶解したＡｇ
Ｃｌを含む合金に還元剤を入れてルツボ内でＡｇＣｌを
Ａｇに還元し、然る後溶湯を鋳型に鋳込むことを特徴と
するものである。前記還元剤としては、ソーダ灰、硼砂
が好ましい。また、還元剤を入れる時期としては、溶解
したＡｇＣｌを含む合金が凝固しかかった赤熱状態の時
であることが好ましい。A method for melting and casting an alloy containing AgCl according to the present invention for solving the above-mentioned problems includes Ag and Ag.
An alloy containing Cl was melted in a crucible and then melted Ag
It is characterized in that a reducing agent is added to an alloy containing Cl to reduce AgCl to Ag in a crucible, and then the molten metal is cast into a mold. The reducing agent is preferably soda ash or borax. In addition, it is preferable that the reducing agent is added when the alloy containing the dissolved AgCl is about to solidify and is in a red hot state.
【０００５】[0005]
【作用】上記のように本発明のＡｇＣｌを含む合金の溶
解鋳造方法では、ルツボ内で溶解したＡｇＣｌを含む合
金に、還元剤を入れてルツボ内でＡｇＣｌをＡｇに還元
し、然る後溶湯を鋳型を鋳込むので、この鋳型に鋳込ん
だ溶湯にはＡｇＣｌが無く、従って鋳型にＡｇＣｌが付
着することが無く、品質の良い評価サンプルが得られ
る。As described above, in the method of melting and casting an alloy containing AgCl of the present invention, a reducing agent is added to an alloy containing AgCl dissolved in a crucible to reduce AgCl to Ag in the crucible, and then the molten metal is melted. Since the mold is cast into the mold, there is no AgCl in the molten metal cast into the mold, and therefore AgCl does not adhere to the mold, and a good quality evaluation sample can be obtained.
【０００６】[0006]
【実施例】本発明のＡｇＣｌを含む合金の溶解鋳造方法
の一実施例を説明する。不可避な不純物として0.30％Ａ
ｇＣｌが含まれている貴金属含有合金（ベースメタルＣ
ｕ）をルツボ内で高周波誘導加熱により溶解し、次に溶
解したＣｕ−2.23％Ｐｔ−1.85％Ａｕ−0.27％Ｐｄ−0.
24％Ａｇ合金が凝固しかかった赤熱状態のところに、還
元剤としてソーダ灰、硼砂を１：１の割合で添加してい
く。分量としては目視で、上記Ｃｕ合金の表面に見られ
るＡｇＣｌによる変色部が無くなるまで添加していく。
１回に添加する量は、ルツボの内径により異なるが、
0.3ｇ〜50ｇの範囲で良く、好ましくはルツボ内径40mm
のもので１ｇ程度、ルツボ内径95mmのもので30ｇ程度が
良く、その結果、ＡｇＣｌがソーダ灰、硼砂により還元
され、Ａｇ単体となり、不純物であるＣｌは硼砂でガラ
ス状に固められる。然る後溶湯をカーボン鋳型に鋳込む
と、冷却した際ガラス状物質と上記Ｃｕ合金が分離し易
くなり、鋳型にはＡｇＣｌひいてはＡｇの付着が無くな
って品質の良い評価サンプルを得ることができ、また鋳
型を何回も使用できて、鋳型の寿命が延びる。EXAMPLE An example of the melting and casting method of an alloy containing AgCl of the present invention will be described. 0.30% A as unavoidable impurities
Precious metal-containing alloy containing gCl (base metal C
u) is melted by high frequency induction heating in a crucible and then melted Cu-2.23% Pt-1.85% Au-0.27% Pd-0.
Soda ash and borax as a reducing agent are added at a ratio of 1: 1 to the red hot state where the 24% Ag alloy is about to solidify. As a quantity, it is visually added until the discolored portion due to AgCl found on the surface of the Cu alloy disappears.
The amount added at one time depends on the inner diameter of the crucible,
It may be in the range of 0.3g to 50g, and the inner diameter of the crucible is preferably 40mm.
About 1 g is good for crucibles with an inner diameter of 95 mm and about 30 g is good. As a result, AgCl is reduced by soda ash and borax to become Ag simple substance, and Cl as an impurity is solidified into glass with borax. After that, when the molten metal is cast into a carbon mold, the glassy substance and the Cu alloy are easily separated when cooled, and AgCl and eventually Ag are not attached to the mold, so that a good quality evaluation sample can be obtained. Also, the mold can be used multiple times, extending the life of the mold.
【０００７】[0007]
【発明の効果】以上の説明で判るように本発明のＡｇＣ
ｌを含む合金の溶解鋳造方法によれば、鋳型にＡｇＣｌ
ひいてはＡｇを付着しないようにＡｇＣｌを無くした状
態で鋳込むことができて品質の良い評価サンプルを得る
ことができ、また、鋳型を何回も使用できて、鋳型の寿
命が増長する。As is apparent from the above description, the AgC of the present invention
According to the melting casting method of alloy containing 1
As a result, it is possible to perform casting in a state where AgCl is removed so that Ag does not adhere to obtain a good quality evaluation sample, and the mold can be used many times, and the life of the mold is extended.
Claims (4)
し、次に溶解したＡｇＣｌを含む合金に還元剤を入れて
ルツボ内でＡｇＣｌをＡｇに還元し、然る後溶湯を鋳型
に鋳込むことを特徴とするＡｇＣｌを含む合金の溶解鋳
造方法。1. An alloy containing AgCl is melted in a crucible, and a reducing agent is added to the melted alloy containing AgCl to reduce AgCl to Ag in the crucible, and then the molten metal is cast into a mold. A method for melting and casting an alloy containing AgCl, which comprises:
特徴とする請求項１記載のＡｇＣｌを含む合金の溶解鋳
造方法。2. The method for melting and casting an alloy containing AgCl according to claim 1, wherein the reducing agent is soda ash or borax.
ｌを含む合金が凝固しかかった赤熱状態の時であること
を特徴とする請求項１又は２記載のＡｇＣｌを含む合金
の溶解鋳造方法。3. Dissolved AgC when the reducing agent is added
3. The method of melting and casting an alloy containing AgCl according to claim 1, wherein the alloy containing 1 is in a red hot state where it is about to solidify.
分とする合金であることを特徴とする請求項１、２又は
３記載のＡｇＣｌを含む合金の溶解鋳造方法。4. The melt casting method for an alloy containing AgCl according to claim 1, 2 or 3, wherein the alloy containing AgCl is an alloy containing Cu as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29566494A JPH08134560A (en) | 1994-11-04 | 1994-11-04 | Melt casting of alloy containing agcl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29566494A JPH08134560A (en) | 1994-11-04 | 1994-11-04 | Melt casting of alloy containing agcl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08134560A true JPH08134560A (en) | 1996-05-28 |
Family
ID=17823585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29566494A Pending JPH08134560A (en) | 1994-11-04 | 1994-11-04 | Melt casting of alloy containing agcl |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08134560A (en) |
-
1994
- 1994-11-04 JP JP29566494A patent/JPH08134560A/en active Pending
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