JPS6431964A - Crucible for melting metal - Google Patents
Crucible for melting metalInfo
- Publication number
- JPS6431964A JPS6431964A JP18583987A JP18583987A JPS6431964A JP S6431964 A JPS6431964 A JP S6431964A JP 18583987 A JP18583987 A JP 18583987A JP 18583987 A JP18583987 A JP 18583987A JP S6431964 A JPS6431964 A JP S6431964A
- Authority
- JP
- Japan
- Prior art keywords
- crucible
- porous body
- bulk density
- melting metal
- carbon
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/243—Crucibles for source material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
Abstract
PURPOSE:To obtain a lightweight crucible for melting metal reduced in radiant heat toward the outside, excellent in heating efficiency, and having superior thermal shock resistance, by providing a crucible composed principally of carbon or graphite and constituted of a porous body of a specific bulk density. CONSTITUTION:A crucible for melting metal is principally composed of carbon or graphite and constituted of a porous body of 0.15-1.1g/cm<3> bulk density and a carbon film provided, if necessary, to the surface of this porous body, and, since this crucible is free from reduction in heating efficiency caused by the dissipation of radiant heat in large quantities toward the outside, a material to be heated can be rapidly and efficiently heated by using this crucible. As to the above porous body, the strength of the crucible is deteriorated when bulk density is below 0.15g/cm<3>, while, when it exceeds 1.1g/cm<3>, electric conductivity is increased and disadvantage is brought about at the time of induction heating. Further, the above porous body can be obtained by using a phenol resin body, etc., as raw material and subjecting the above to heating treatment in vacuum, etc., at about 800-1500 deg.C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18583987A JPS6431964A (en) | 1987-07-25 | 1987-07-25 | Crucible for melting metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18583987A JPS6431964A (en) | 1987-07-25 | 1987-07-25 | Crucible for melting metal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6431964A true JPS6431964A (en) | 1989-02-02 |
Family
ID=16177780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18583987A Pending JPS6431964A (en) | 1987-07-25 | 1987-07-25 | Crucible for melting metal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6431964A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0316634A (en) * | 1989-06-14 | 1991-01-24 | Mitsubishi Electric Corp | Material vapor generator |
EP0652303A1 (en) * | 1993-11-09 | 1995-05-10 | General Vacuum Equipment Limited | Evaporator for vacuum web coating |
-
1987
- 1987-07-25 JP JP18583987A patent/JPS6431964A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0316634A (en) * | 1989-06-14 | 1991-01-24 | Mitsubishi Electric Corp | Material vapor generator |
EP0652303A1 (en) * | 1993-11-09 | 1995-05-10 | General Vacuum Equipment Limited | Evaporator for vacuum web coating |
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