parting line
5.Abstract: Some shortcomings on the design of vertical parting hot box are reviewed briefly , and optimization of the design of parting line, direction of shoot sand, push core mechanism ,taking core mechanism, negtive parameter of parting line, and enlarge fabrication of convex are described specifically.
7.According to the complicated point (around thin wall and side-direction have got through-holes, impression cove but rule, two slip cross tendon through the boss of the cast-ding) of the aluminium pnystega die-casting and the strict specification, selected the 116D type pressure die casting machine, the parting plane was select on the joint line of the stir and cover die lag .

