JPS6483974A - Composite graphite sheet material - Google Patents

Composite graphite sheet material

Info

Publication number
JPS6483974A
JPS6483974A JP23973687A JP23973687A JPS6483974A JP S6483974 A JPS6483974 A JP S6483974A JP 23973687 A JP23973687 A JP 23973687A JP 23973687 A JP23973687 A JP 23973687A JP S6483974 A JPS6483974 A JP S6483974A
Authority
JP
Japan
Prior art keywords
graphite sheet
sheet material
silicon carbide
approximately
expanded graphite
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
JP23973687A
Other languages
Japanese (ja)
Inventor
Yasuhiro Obara
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.)
Ibiden Co Ltd
Original Assignee
Ibiden Co 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 Ibiden Co Ltd filed Critical Ibiden Co Ltd
Priority to JP23973687A priority Critical patent/JPS6483974A/en
Publication of JPS6483974A publication Critical patent/JPS6483974A/en
Pending legal-status Critical Current

Links

Landscapes

  • Gasket Seals (AREA)
  • Ceramic Products (AREA)
  • Sealing Material Composition (AREA)

Abstract

PURPOSE:To obtain proper flexibility, rigidity, and excellent oxidation resistance, in composite graphite sheet materials such as valve seats and gaskets, by converting a part or the whole of the surface of an expanded graphite sheet into silicon carbide. CONSTITUTION:An expanded graphite sheet material is molded, and the compact having been obtained is closedly put into a vessel of the same graphite so as not to be brought into contact with approximately 1kg of the mixed compact of silicon powder and silicon dioxide powder (mole ratio 1:1), and is heated at approximately 1800 deg.C while being kept at this temperature for one hour to obtain a sealed member 1. As a result of this treatment, the surface of expanded graphite 2 is converted into beta-type silicon carbide 3 to form the sealed member 1 consisting of composite graphite sheet material. Thus, the surface layer of silicon carbide which is capable of being used even in a high temperature air exceeding approximately 800 deg.C and also is capable of being prevented from seizure can be obtained, and further residual surfur compound and chlorine compound are completely removed by the high temperature at the time of conversion treatment, so that the corrosion of machineries can be prevented.
JP23973687A 1987-09-24 1987-09-24 Composite graphite sheet material Pending JPS6483974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23973687A JPS6483974A (en) 1987-09-24 1987-09-24 Composite graphite sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23973687A JPS6483974A (en) 1987-09-24 1987-09-24 Composite graphite sheet material

Publications (1)

Publication Number Publication Date
JPS6483974A true JPS6483974A (en) 1989-03-29

Family

ID=17049167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23973687A Pending JPS6483974A (en) 1987-09-24 1987-09-24 Composite graphite sheet material

Country Status (1)

Country Link
JP (1) JPS6483974A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104982A (en) * 1979-02-07 1980-08-11 Usui Kokusai Sangyo Kk Manufacture of silicon carbideecarbon composite body
JPS581552A (en) * 1981-06-29 1983-01-06 日本ピラ−工業株式会社 Composite material proper as sealing member
JPS6146075B2 (en) * 1979-07-27 1986-10-11 Mitsubishi Electric Corp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104982A (en) * 1979-02-07 1980-08-11 Usui Kokusai Sangyo Kk Manufacture of silicon carbideecarbon composite body
JPS6146075B2 (en) * 1979-07-27 1986-10-11 Mitsubishi Electric Corp
JPS581552A (en) * 1981-06-29 1983-01-06 日本ピラ−工業株式会社 Composite material proper as sealing member

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