Piece for tire mold, method of producing the piece, piece-type tire mold and method of producing the piece-type tire mold

摘要

To form a fine slit having a width of 0.1 mm or less in each piece of a piece type tire mold, a plate-like shim member 44 having a width of 0.1 mm or less is inserted into a rubber mold 40 A when a piece 40 is to be produced, a molten metal such as aluminum is injected into a plaster mold 40 B to which the shim member 44 has been transferred and solidified to cast the piece 40 , and the shim member 44 is removed from the piece 40 to which the shim member 44 has been transferred to form a slit having a width of 0.1 mm or less in the piece 40.