| 摘要 |
PURPOSE:To obtain desired molds excellent in staining resistance, separability, and wear resistance by forming the thin film of a silicon carbide alloy on the portion to be touched by rubber of molds for vulcanization and molding of rubbers by high-frequency sputtering method. CONSTITUTION:Cr-plated molds 1 and 1' subjected to given cleaning and degreasing treatments are put on a base table 3 set in a sputtering chamber 2, and Ar gas is introduced into the chamber 2 evacuated to a high vacuum degree. A high frequency is applied to the table 3 to remove out oxide films on the surfaces of the molds 1 and 1'. A high frequency is then applied to a composite target 4 side consisting of a stainless steel (SUS304) disc and a silicon carbide sintered body, and while turning the table 3, the thin film of SiC-stainless steel (SUS304) alloy is formed on the molds 1 and 1' by sputtering. Molds for vulcanization and molding of rubbers, which are excellent in staining resistance, separability, and wear resistance, can thus be obtained. |
