B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
25/28, 18/6
B30B 11/00 (2006.01) B29C 33/76 (2006.01) B29C 70/08 (2006.01) C04B 35/645 (2006.01) C04B 35/80 (2006.01) C04B 35/83 (2006.01)
Patent
CA 1241161
Abstract of the Disclosure: A single piece carbon fiber composite article suitable for use as a hot-press mold is has an inner volume of chopped fiber and an outer volume of con- tinuous carbon fiber all in a common graphite support matrix. The article is assembled by winding con- tinuous carbon fiber around a mandrel formed of chopped carbon fiber in a matrix of carbon, impregnating the interstice in the winding and mandrel with graphite precursor material. The precursor material is converted to graphite, creating a common matrix between the internal mandrel and the external windings. The internal volume is machinable to form a graphite mold cavity, and has essentially the same coefficient of thermal expansion as the external volume. FM-26
484109
Fiber Materials Inc.
Macrae & Co.
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