JP2625128B2 - Precious metal sphere manufacturing equipment - Google Patents
Precious metal sphere manufacturing equipmentInfo
- Publication number
- JP2625128B2 JP2625128B2 JP62265307A JP26530787A JP2625128B2 JP 2625128 B2 JP2625128 B2 JP 2625128B2 JP 62265307 A JP62265307 A JP 62265307A JP 26530787 A JP26530787 A JP 26530787A JP 2625128 B2 JP2625128 B2 JP 2625128B2
- Authority
- JP
- Japan
- Prior art keywords
- zone
- noble metal
- temperature
- inlet
- melting point
- 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.)
- Expired - Fee Related
Links
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Adornments (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はAgまたはAg合金、AuまたはAu合金およびPtま
たはPt合金等の貴金属の球体を製造する装置に関する。The present invention relates to an apparatus for producing a sphere of a noble metal such as Ag or an Ag alloy, Au or an Au alloy, and Pt or a Pt alloy.
一定の径を有する貴金属の球体を製造する方法として
従来から以下のような方法がある。型による鋳造する
方法、型による加圧成形する方法、棒状のものから
切削する方法、溶湯からのショット方法等がある。As a method for producing a sphere of a noble metal having a certain diameter, the following method has conventionally been used. There are a casting method using a mold, a pressure molding method using a mold, a cutting method from a rod-shaped object, a shot method from a molten metal, and the like.
ところが上記の従来技術によると、の方法は所望径
の寸法ごとの型が必要となると共に押し湯部分が残る等
の問題がある。の方法はこれも所望径の寸法ごとの型
が必要となると共に脆い合金では加工が難しく、またば
り等が発生する問題がある。の方法は切削屑が生じて
歩留まりが悪くしかも高度な技術が要求され、作業も複
雑であるという問題がある。の方法は製造は比較的簡
単であるが球体を得ることが困難であり、まして所望寸
法に成形することは不可能に近く、しかも歩留まりが悪
いという問題がある。However, according to the above-mentioned prior art, there is a problem that the above method requires a mold for each dimension of a desired diameter, and a part of the feeder remains. This method also requires a mold for each dimension of a desired diameter, and is difficult to work with a brittle alloy, and has the problem of generating burrs and the like. The method (1) has a problem that the yield is low due to the generation of cutting chips, a high level technology is required, and the operation is complicated. The method is relatively easy to manufacture, but it is difficult to obtain a sphere, and moreover, it is almost impossible to obtain a desired size, and the yield is low.
本発明は、案内管を入口から出口に向けて下がり勾配
の角度を付けて配置し、この案内管の入口から出口にか
けて温度勾配を形成するために連続した４つのゾーンに
分け、入口側から順に、Ａゾーン内は加工する貴金属の
融点以上の温度にし、次のＢゾーン内はその貴金属の融
点付近の温度にし、その次のＣゾーン内はその貴金属の
融点以下の温度とし、これら各ゾーンの外周に加熱装置
を設け、さらにＣゾーンに続くＤゾーンを冷却ゾーンと
して外周に冷却装置を設け、出口付近に不活性または還
元性ガスの導入口を設けたことを特徴とし、さらに各ゾ
ーンの温度をそれぞれ調整可能としたことを特徴とす
る。In the present invention, the guide tube is arranged at an angle of a downward gradient from the inlet to the outlet, divided into four continuous zones to form a temperature gradient from the inlet to the outlet of the guide tube, and sequentially from the inlet side. , The temperature in the zone A is equal to or higher than the melting point of the noble metal to be processed, the temperature in the zone B is equal to or lower than the melting point of the noble metal, the temperature in the next zone C is equal to or lower than the melting point of the noble metal. A heating device is provided on the outer periphery, a cooling device is provided on the outer periphery with the D zone following the C zone as a cooling zone, and an inlet for an inert or reducing gas is provided near the outlet. Are adjustable.
以下に本発明の一実施例を図面を用いて説明する。 An embodiment of the present invention will be described below with reference to the drawings.
図面は側断面図であり、図において１はカーボンやセ
ラミック等による案内管であり、一方が入口1a、他方が
出口1bとなっており、入口1aから出口1bに向けて下がり
勾配の角度θが付けてあり、この角度θは貴金属の種類
および製造する球体の大きさ等によって定める。The drawing is a side sectional view, in which 1 is a guide tube made of carbon, ceramic or the like, one is an inlet 1a, the other is an outlet 1b, and an angle θ of a downward gradient from the inlet 1a to the outlet 1b is reduced. The angle θ is determined according to the type of the noble metal and the size of the sphere to be manufactured.
この案内管１は、入口1aから出口1bにかけて温度勾配
を形成するために連続した４つのゾーンに分けられてお
り、入口1a側のＡゾーンは案内管１内を加工する貴金属
の融点以上の温度になっているゾーン、Ｂゾーンはその
貴金属の融点付近の温度になっているゾーン、Ｃゾーン
はその貴金属の融点以下の温度になっているゾーンであ
り、それぞれ案内管１の外周に加熱装置２、３、４が設
けてある。さらにＤゾーンは冷却ゾーンであり、案内管
の外周に冷却装置５が取りつけてある。The guide tube 1 is divided into four continuous zones in order to form a temperature gradient from the inlet 1a to the outlet 1b, and the A zone on the inlet 1a side has a temperature higher than the melting point of the noble metal that processes the inside of the guide tube 1. Zone, zone B is a zone at a temperature near the melting point of the noble metal, and zone C is a zone at a temperature below the melting point of the noble metal. , 3 and 4 are provided. Further, the D zone is a cooling zone, and a cooling device 5 is attached to the outer periphery of the guide tube.
６は不活性または還元性ガスを案内管１内に導入する
導入管である。Reference numeral 6 denotes an introduction pipe for introducing an inert or reducing gas into the guide pipe 1.
以下に製造方法を説明する。 The manufacturing method will be described below.
まず、加工する貴金属の融点に合わせてＡ、Ｂおよび
Ｃの各ゾーンの温度を調整すると共に球径に合わせて案
内管１の角度θをきめる。First, the temperature of each zone of A, B and C is adjusted according to the melting point of the noble metal to be processed, and the angle θ of the guide tube 1 is determined according to the sphere diameter.
そこで、所望する径の球体の体積となるように線径と
長さを調整した貴金属素材７を入口1aから投入すると、
貴金属素材７は転がりながらＡゾーンで溶融点以上に加
熱され、表面張力によって球状化する。その状態でＢゾ
ーンおよびＣゾーンを転がりながら球状を維持しつつ徐
々に凝固しながら移動する。そして最後にＤゾーンで冷
却されて所望径の球体に固まって出口1bより排出され
る。Therefore, when the precious metal material 7 whose wire diameter and length are adjusted so as to have a volume of a sphere having a desired diameter is introduced from the inlet 1a,
The noble metal material 7 is heated above the melting point in the zone A while rolling, and becomes spherical due to surface tension. In this state, while rolling in the B zone and the C zone, it moves while gradually solidifying while maintaining a spherical shape. Finally, it is cooled in the D zone, solidified into a sphere having a desired diameter, and discharged from the outlet 1b.
なお、酸化するおそれのあるAg合金、Au合金もしくは
Pt合金の場合には案内管１内を不活性または還元性ガス
の雰囲気にして上記加工を行う。In addition, Ag alloy, Au alloy or
In the case of a Pt alloy, the above processing is performed by setting the inside of the guide tube 1 to an inert or reducing gas atmosphere.
以下に応用例を説明する。 An application example will be described below.
実用例１。Practical example 1.
径5mmのAu球体を得るために、線径4.4mmのAu線を4.3m
mにカットしたものを用い、Ａゾーンを1150℃、Ｂゾー
ンを1050℃さらにＣゾーンを950℃にして上記加工を行
った。その結果4.95≦球径≦5.03の範囲にあった。In order to obtain an Au sphere with a diameter of 5mm, an Au wire with a wire diameter of 4.4mm is 4.3m
The above-mentioned processing was performed by using the one cut to m, setting the zone A at 1150 ° C., the zone B at 1050 ° C., and the zone C at 950 ° C. As a result, it was in the range of 4.95 ≦ sphere diameter ≦ 5.03.
実用例２ 径3mmの75Au−12.5Ag−12.5Cu合金の球体を得るため
に、線径2.6mmの上記合金線を2.65mmにカットしたもの
を用い、Ａゾーンを1000℃、Ｂゾーンを900℃さらにＣ
ゾーンを800℃にし、N2＋H2（1:1）ガスを案内管１内に
流して上記の加工を行なった。その結果2.95≦球径≦3.
01の範囲にあった。Practical Example 2 In order to obtain a sphere of a 75Au-12.5Ag-12.5Cu alloy having a diameter of 3 mm, the above alloy wire having a diameter of 2.6 mm was cut into 2.65 mm, and the zone A was 1000 ° C and the zone B was 900 ° C. Further C
The zone was set at 800 ° C., and N 2 + H 2 (1: 1) gas was flown into the guide tube 1 to perform the above processing. As a result 2.95 ≦ ball diameter ≦ 3.
01 was in the range.
以上詳細に説明した本発明によると、所望する径の球
体の体積となるように線径と長さを調整した貴金属素材
を案内管内に投入することにより所望の径の球体となっ
て排出されるもので、歩留が100％に近くしかも型や工
具を一切必要とせず、熟練した技術も要求されることな
く高精度の球体を得ることができる効果を有する。According to the present invention described in detail above, a noble metal material whose wire diameter and length have been adjusted so as to have a volume of a sphere having a desired diameter is introduced into the guide tube and is discharged as a sphere having a desired diameter. The yield is close to 100%, does not require any molds or tools, and has the effect that a highly accurate sphere can be obtained without requiring any skilled technique.
また、各ゾーンの温度を調整するだけでAg、Auもしく
はPtの単一金属のみならず所望の合金の球体を簡単に製
造することができることになる。In addition, simply adjusting the temperature of each zone makes it possible to easily produce not only a single metal of Ag, Au or Pt but also a sphere of a desired alloy.
図面は側断面図である。 １……案内管 ２、３、４……加熱装置 ５……冷却装置 The drawing is a side sectional view. 1 ... guide pipes 2, 3, 4 ... heating device 5 ... cooling device
Claims (2)
の角度を付けて配置し、この案内管の入口から出口にか
けて温度勾配を形成するために連続した４つのゾーンに
分け、入口側から順に、Ａゾーン内は加工する貴金属の
融点以上の温度にし、次のＢゾーン内はその貴金属の融
点付近の温度にし、その次のＣゾーン内はその貴金属の
融点以下の温度とし、これら各ゾーンの外周に加熱装置
を設け、さらにＣゾーンに続くＤゾーンを冷却ゾーンと
して外周に冷却装置を設け、出口付近に不活性または還
元性ガスの導入口を設けたことを特徴とする貴金属球体
の製造装置。1. A guide tube is disposed at an angle of a downward gradient from an inlet to an outlet, divided into four continuous zones to form a temperature gradient from the inlet to the outlet of the guide tube, and from the inlet side. In order, the temperature in the zone A is higher than the melting point of the noble metal to be processed, the temperature in the zone B is near the melting point of the noble metal, the temperature in the next zone C is lower than the melting point of the noble metal. Characterized in that a heating device is provided on the outer periphery of the device, a cooling device is provided on the outer periphery using the D zone following the C zone as a cooling zone, and an inert or reducing gas inlet is provided near the outlet. apparatus.
度をそれぞれ調整機能としたことを特徴とする貴金属球
体の製造装置。2. An apparatus for producing a noble metal sphere according to claim 1, wherein the temperature of each zone is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62265307A JP2625128B2 (en) | 1987-10-22 | 1987-10-22 | Precious metal sphere manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62265307A JP2625128B2 (en) | 1987-10-22 | 1987-10-22 | Precious metal sphere manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01107956A JPH01107956A (en) | 1989-04-25 |
| JP2625128B2 true JP2625128B2 (en) | 1997-07-02 |
Family
ID=17415379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62265307A Expired - Fee Related JP2625128B2 (en) | 1987-10-22 | 1987-10-22 | Precious metal sphere manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2625128B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55130367A (en) * | 1979-03-30 | 1980-10-09 | Tanaka Kikinzoku Kogyo Kk | Production of noble metal small ball |
-
1987
- 1987-10-22 JP JP62265307A patent/JP2625128B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01107956A (en) | 1989-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |