Last week, I visited our factory in China with few fiberglass production machine shown in pictures. Each day, each machine can make around 20 fiberglass helmet, if counting 8 working hours. Not as fast as ABS plastics helmet (1 minute 1 helmet)
Information of making a fiberglass helmet in production.
(a) providing a fiberglass sheeting;
(b) mixing course ceramic particles into a thermoset resin;
(c) impregnating the resin/ceramic particle mixture into sheeting;
(d) molding the impregnated sheeting into a shape of a protective helmet;
(e) curing the resin mixture impregnated into the sheeting.
The ceramic particles are preferably created by chopping a ceramic material. The presence of the ceramic particles in the composite helmet reduces the heat reflectance of the helmet. Finally, because the ceramic particles are course, they will not all flow to “low spots” in the helmet during the curing process. The course ceramic particles will remain entangled with, and caught on the fibers of the sheeting during the curing process.
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