Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Patent
1992-03-20
1993-11-16
Timm, Catherine
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
264250, 264258, 264313, 264314, 264317, 156182, 156189, 156191, 156194, 156245, 273 80R, 273167R, 273167H, B29C 4920
Patent
active
052621189
ABSTRACT:
In the production of a hollow FRP article such as a wood type carbon black golf club head, a hollow resin shell is formed via blow molding, heat-resistant fine particles are filled as a filler into the interior of the resin shell, the interior of the resin shell is decompressed to form an inner mold, the inner mold is covered with FRP prepreg including thermoplastic resin to form a prepreg composite, the prepreg composite is heated in a metallic mold under pressure and the fine articles are removed after demolding. A golf club shaft is formed by heating a mandrel, applying thermoplastic resin powder to the mandrel and then winding a lamellar prepreg around the mandrel to thereby form a hollow shaft. A golf club is formed from a head and shaft formed as described above by enlarging the end of the shaft, placing the shaft and the head in a mold and heating the mold under pressure.
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W. Brandt Goldsworthy, Thermoplastic Composites: The New Structurals, Plastics World, Aug. 1984, pp. 56-58.
Abe Eizi
Fukushima Toshihari
Hashimoto Kaoru
Hiyama Kunio
Okada Masuhiro
Timm Catherine
Yamaha Corporation
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