Method for fabrication of refractory composite tubing

Details Method for fabrication of refractory composite tubing Method for fabrication of refractory composite tubing

1988-06-28

1990-10-16

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Controlling varying temperature or plural heating steps

264 62, 264258, C01B 3100, C04B 3564

Patent

active

049633015

ABSTRACT:
Reinforced composite tubes are formed by rolling a flat reinforcement fabric onto a cylindrical or conical mandrel under tension. By pre-impregnating the fabric with a suitable matrix precursor or by serving the individual threads of the fabric with a thermoplastic, the fabric may be compressed by applying heat and pressure during the rolling process. After rolling, the resulting prepreg is cured in a suitable vacuum bag, also under heat and pressure. The cured prepreg may then be converted by pyrolysis and densified by repeated impregnation and converting steps. The resulting composite tubes are substantially free from mechanical defects which would reduce their strength.

REFERENCES:
patent: 3093532 (1963-06-01), Miller et al.
patent: 4741873 (1988-05-01), Fischer
patent: 4837230 (1989-06-01), Chen et al.
patent: 4853172 (1989-08-01), Jacaruso et al.
Brochure from Century Design, Inc., "Composite Machinery & Equipment" with 2 inserts (1) M-800B Rolling Table and (2) M-880FP Rolling Table.

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