SEAL STRUCTURE OF METAL MOLD

摘要

A seal structure of a metal mold capable of performing an excellent vacuum casting by sufficiently sealing the metal mold with a simple structure, wherein a sloped surface (28a) is provided on a contact part (28) provided on the upper surface (25) of a fixed mold (20), a seal member (45) is installed continuously all around the flat surface (42a) and the sloped surface (42b) of the contact member (42) of a slide core (40), and when a movable mold (30) is moved forward after the slide core (40) is clamped in the movable mold (30), the sloped surface (42b) of the slide core (40) is pressed against the sloped surface (28a) of the fixed mold (20), whereby, since the sloped surfaces (28a, 42b) are tilted at a same angle relative to the forward moving direction of the movable mold (30), the seal member (45) installed on the sloped surface (28a) is not slidably moved on the sloped surface (42b) during the forward movement of the movable mold (30), and the seal member (45) can be prevented from being worn and cut off by the sliding.