Semi -continuous casting device that restraines magnesium alloy ingot blank fracture

The utility model provides a semi -continuous casting device that restraines magnesium alloy ingot blank fracture, include the crystallizer and set up in the combination dummy ingot of crystallizer below, crystallizer top sets up adjustable diverter plate, and adjustable diverter plate be the open cylinder structure in top, and the cylinder structure evenly is provided with a plurality of right -angle connecting rod along the top circumference, and every right -angle connecting rod is connected with a height -adjusting bolts, place diverter plate in the crystallizer top through height -adjusting bolts, bottom the height -adjusting bolts and the crystallizer upper cover contact, set up a plurality of minutes discharge orifices on the wall of cylinder structure, the combination dummy ingot includes dummy ingot body, heat -conducting plate and cooling pipeline, and dummy ingot body top center department is equipped with the recess of settling the heat -conducting plate, leaves clearance,gap width