GAS-VENTING ARRANGEMENT INCORPORATED WITH A MOLD

摘要

A valve chamber is equipped with a gas outlet path. A seat valve, which can move freely in the axis direction of the gas outlet path, is equipped within a valve chamber. A bypass path, which is separated from the gas outlet path, is connected with the side part of the movement path of valve. The gas outlet path reaches from the side part of the movement path of valve to the outside of a mold. The valve is moved by inertia of the molten metal and performs the role of stovepipe and interceptor between the bypass and gas outlet paths.