JPS57121623A - Preparation of graphite fiber - Google Patents
Preparation of graphite fiberInfo
- Publication number
- JPS57121623A JPS57121623A JP663581A JP663581A JPS57121623A JP S57121623 A JPS57121623 A JP S57121623A JP 663581 A JP663581 A JP 663581A JP 663581 A JP663581 A JP 663581A JP S57121623 A JPS57121623 A JP S57121623A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- carbonized
- graphitizing
- zone
- graphitized
- 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
Abstract
PURPOSE: To obtain graphite fibers having improved strength and modulus of elasticity, by flameproofing a polyacrylonitrile fibrous precursor, carbonizing the flameproofed fibers, and graphitizing the carbonized fibers under specific conditions.
CONSTITUTION: A polyacrylonitrile fibrous presursor is flameproofed and carbonized. In a graphitizing zone through which the carbonized fibers are passed, the passing time in a temperature zone at ≥1,500°C is set within 0.5min and the tension of the fibers to be treated is kept at 100W600mg/denier. The carbonized fibers are graphitized and then graphitized at a tension of the fibers ≤20mg/ denier and a maximal temperature of at least 2,000°C to give the aimed graphite fibers. Preferably, a single graphitizing zone is used.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP663581A JPS57121623A (en) | 1981-01-20 | 1981-01-20 | Preparation of graphite fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP663581A JPS57121623A (en) | 1981-01-20 | 1981-01-20 | Preparation of graphite fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57121623A true JPS57121623A (en) | 1982-07-29 |
Family
ID=11643820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP663581A Pending JPS57121623A (en) | 1981-01-20 | 1981-01-20 | Preparation of graphite fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57121623A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63211326A (en) * | 1987-02-20 | 1988-09-02 | Toray Ind Inc | Graphite fiber having high compression strength |
JPH01124629A (en) * | 1987-11-06 | 1989-05-17 | Toray Ind Inc | Graphite fiber having high compressive strength |
JPH04240221A (en) * | 1991-01-23 | 1992-08-27 | Toray Ind Inc | Graphitized fiber |
-
1981
- 1981-01-20 JP JP663581A patent/JPS57121623A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63211326A (en) * | 1987-02-20 | 1988-09-02 | Toray Ind Inc | Graphite fiber having high compression strength |
JPH01124629A (en) * | 1987-11-06 | 1989-05-17 | Toray Ind Inc | Graphite fiber having high compressive strength |
JPH04240221A (en) * | 1991-01-23 | 1992-08-27 | Toray Ind Inc | Graphitized fiber |
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