Short fiber compacted body for manufacturing composite material and its manufacture |
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| 申请号 | JP657685 | 申请日 | 1985-01-17 | 公开(公告)号 | JPS61166934A | 公开(公告)日 | 1986-07-28 |
| 申请人 | Toyota Motor Corp; | 发明人 | HAMASHIMA KANEO; TANAKA ATSUO; KUBO MASAHIRO; DONOMOTO TADASHI; | ||||
| 摘要 | PURPOSE:To obtain compacted body capable of manufacturing composite material which is difficult to be fractured by repeated loads and cold and hot cycle, by pressing a specified part of the titled body composed of short fibers joined with binder, before binder hardening, to rise short fiber vol. ratio only at the specified part and decrease said ratio continuously to the other part. CONSTITUTION:For instance, alumina short fiber 1 is sucking formed to a compacted body 2, by using colloidal silica binder contg. about 10% SiO2. Next, a notch 3 having V-shaped section and extended in width direction is formed on one plane thereof. The body 2 is varied to half dried state in furnace, then is arranged on a pedestal 4, and about half part of the body 2 is pressed by a pressing punch 6 having a round corner part 5 extending along the notch 3. Said body is entered in furnace again to dry binder completely. Thereby, the titled body 10 composed of a transition part 9 in which fiber vol. ratio is decreased, e.g. from 15% to 5% gradually between a pressed part 7 having high fiber vol. ratio and a nonpressed part 8, is obtd. | ||||||
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| 说明书全文 | |||||||
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