Patent ID: 9272325
Filing Date: 2016-03-01
CPC Classification: B22C,B22D

Claim Text:
1. An environment servo type clean metal casting mold including a mold body with an ingate, wherein the mold body comprises a cold bottom mold plate and a peripheral mold plate in connection with the cold bottom mold plate, wherein a vertical temperature servo abrupt device is set on the peripheral mold plate; and wherein the vertical temperature servo abrupt device includes a mobile heat preservation internal mold disposed in the peripheral plate, the mobile heat preservation internal mold is connected movably with the peripheral mold plate, the mobile heat preservation internal mold is connected movably with a lifting guide mechanism set outside the mold body, and the mobile heat preservation internal mold is a sealed frame composed of thermal insulation board and is conformal to the shape of the inner wall of the peripheral mold plate.