| 摘要 |
A metallic mold (1) for tire curing is disclosed, which comprises a plurality of pieces (3) for forming a tread pattern of a tire by sections, the pieces being fixed to a back block (4) and arranged in an annular form. In this case, each piece is composed of a plurality of piece block layers (3a,3b) laminated by performing a plurality of shots of die casting for metallic materials, and a very small gap (h) is formed in a joined portion between the piece blocks by means of coagulation and contraction of the metallic materials. Because of this constitution, formation of a gap having necessary exhaust performance in an optional position of a molding surface can be facilitated. Accordingly, an appearance of a produced tire can be improved without preventing spew formation, and the production of defectives can be reduced during curing and molding. <IMAGE> |
