| 摘要 |
PROBLEM TO BE SOLVED: To provide a vulcanizing and molding method of a highly foamed vulcanized rubber (e.g. a motocross tire tube) by which the productivity at the vulcanizing and molding process is extremely improved while keeping properties of a highly foamed massive rubber product. SOLUTION: A foamable non-vulcanized rubber is pressurized and heated with a mold as the primary vulcanization to provide a previously vulcanized rubber molding product, and the previously vulcanized rubber molding product is vulcanized by a high frequency dielectric heating as the secondary vulcanization in the method for vulcanizing and molding the foamed and vulcanized molding product. In the other aspect, the foamable non-vulcanized rubber is formed into the previously vulcanized rubber molding product by the high frequency dielectric heating, and the previously vulcanized rubber molding product is pressurized and heated by the mold to vulcanize the previously vulcanized rubber molding product as the secondary vulcanization. |
