JPS57171564A - Precision casting method - Google Patents
Precision casting methodInfo
- Publication number
- JPS57171564A JPS57171564A JP5660581A JP5660581A JPS57171564A JP S57171564 A JPS57171564 A JP S57171564A JP 5660581 A JP5660581 A JP 5660581A JP 5660581 A JP5660581 A JP 5660581A JP S57171564 A JPS57171564 A JP S57171564A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- casting
- inert gas
- defects
- harmful components
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
PURPOSE:To eliminate the generation of various kinds of defects owing to harmful components such as metallic vapor in the event of casting personal ornaments made of metals with a precision casting plant having a hermetically sealed melting chamber and a casting chamber by charging and discharging an inert gas into and from the melting chamber continuously. CONSTITUTION:A body 29 of a precision casting machine is segmented by means of a wall 31 having a vent hole 7 to a melting chamber 1 and a casting chamber 8. An ingot 3 of noble metal which is a raw material for castings is put in a copper crucible 5 in the chamber 1, and is melted by the arc 4 between the same and an electrode 2, and is cast into the mold 9 in the chamber 8 in the lower part through the hole 7, whereby personal ornaments, objects of industrial art, artificial teeth, small industrial articles, etc. are precision-cast. In this case, the smoke-like harmful components such as vapor of the molten metal degrade the visual field in the chamber 1, contaminate the chamber walls, or enter the inside of the chamber 8 thereby sticking on the molds and causing casting defects. In order to prevent these, an inert gas such as Ar is flowed into the chamber 1 with vacuum pumps 16 and 52 to carry out the harmful components together with the inert gas to the outside, whereby various kinds of defects are prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5660581A JPS57171564A (en) | 1981-04-14 | 1981-04-14 | Precision casting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5660581A JPS57171564A (en) | 1981-04-14 | 1981-04-14 | Precision casting method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57171564A true JPS57171564A (en) | 1982-10-22 |
Family
ID=13031852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5660581A Pending JPS57171564A (en) | 1981-04-14 | 1981-04-14 | Precision casting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57171564A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07116819A (en) * | 1993-10-20 | 1995-05-09 | Kiyasuteingu Okamoto:Kk | Method for pretreating metal for casting and device therefor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54145325A (en) * | 1978-05-02 | 1979-11-13 | Nakaseko Isao | Casting machine equipped with argon arc pressure device |
-
1981
- 1981-04-14 JP JP5660581A patent/JPS57171564A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54145325A (en) * | 1978-05-02 | 1979-11-13 | Nakaseko Isao | Casting machine equipped with argon arc pressure device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07116819A (en) * | 1993-10-20 | 1995-05-09 | Kiyasuteingu Okamoto:Kk | Method for pretreating metal for casting and device therefor |
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