JPS6483974A - Composite graphite sheet material - Google Patents
Composite graphite sheet materialInfo
- 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
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.
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)
| 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 |
-
1987
- 1987-09-24 JP JP23973687A patent/JPS6483974A/en active Pending
Patent Citations (3)
| 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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