| 摘要 |
First, fibers of a single material or of mixed materials are knitted or woven into a single-layer fiber tube. Then, two or more fiber tubes thus formed are threaded layer-by-layer over a mandrel and the two ends of the fiber tubes are fastened. The assembly is then submerged in a vacuumed or pressurized tank of uncured resins, so that the resins could permeate evenly into the fiber tubes. The assembly is then thermally cured and the cured fiber tubes are removed from the mandrel. The fiber tubes are then placed in a mold and molded together with a knob and a cap at its both ends to make a composite baseball bat.
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