JPS6431964A - Crucible for melting metal - Google Patents

Crucible for melting metal

Info

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
Application number
JP18583987A
Other languages
Japanese (ja)
Inventor
Shinro Katsura
Hideo Shiraki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP18583987A priority Critical patent/JPS6431964A/en
Publication of JPS6431964A publication Critical patent/JPS6431964A/en
Pending legal-status Critical Current

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.
JP18583987A 1987-07-25 1987-07-25 Crucible for melting metal Pending JPS6431964A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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