| 摘要 |
<p>PURPOSE:To reduce the rejection rate when plastic and metal are molded in one body and to rationalize the process, by introducing plastic pellets into a metal product formed in situ, and forming the plastic pellets by a press machine while they are heated by high-frequency heating. CONSTITUTION:A high-frequency heating apparatus 6 is built in pressing molds 1b, 1c. First, a metal member (a thin plate) 3 is press molded by the press machine, then the molding material, that is, the plastic pellets 5 are introduced into the thus press molded metal member, and while the pellets 5 are melted by high-frequency heating, they are subjected to press molding through the press mold 1b. Thus the following advantages will be obtained: (1) the preciseness defined by the press molds and the metal member is increased and therefore looseness or the like between them is not formed, as well as no burr or deformed product is made, (2) the plastic can be molded using the same press machine as used in press molding the metal member, and (3) the molding time is very short due to the high-frequency heating.</p> |
