FOAM GRIP FABRICATION METHOD

摘要

A foam grip fabrication method includes a mold preparation step to prepare a foaming mold having a size reduced to a predetermined foaming ratio, a heating step to heat the foaming mold to a bridging curve temperature, and then to close the foaming mold and to draw the foaming mold to a negative pressure state, a material filling step to mix a raw material to be foamed with a foaming agent and a crosslinking agent and then to inject the foaming material thus obtained into the foaming mold, and a foaming step to open the foaming mold after vulcanization of the molding for enabling a flow of outside air to enter and to cause the molding thus molded to expand and then to put the molding on a tool for cooling and shaping so that a finished product in the desired size is thus obtained.

主权项

1. A foam grip fabrication method for making a foam grip (10) having an axial hole (12), the method comprising:
a mold preparation step to prepare a foaming mold (20) having a size reduced to a predetermined foaming ratio, i.e., the size of the design foam grip divided by the foaming ratio =the size of the foaming mold (20), said foaming mold (20) comprising a foam mold cavity (23) and a rapping rod (24) extended to said foam mold cavity (23); a heating step to heat said foaming mold (20) to a bridging curve temperature for foaming, and then to close said foaming mold (20) and to draw said foaming mold (20) to a negative pressure state; a material filling step to mix a raw material to be foamed with a foaming agent and a crosslinking agent so as to obtain a foaming material (30), and then to inject said foaming material (30) into said foaming mold (20) for foaming; and a foaming step to let said foaming material (30) be vulcanized into a molding (40) having an axial bore (41), and then to open said foaming mold (20) for enabling a flow of outside air to enter said foaming mold (20) and to cause the molding (40) thus molded to expand, and then to put said molding (40) on a tool (50) for cooling and shaping so that a finished product in the desired size is thus obtained.