公开(公告)号：US10449600B2

公开(公告)日：2019-10-22

申请号：US15673707

申请日：2017-08-10

Applicant: CITIC Dicastal CO., LTD

Inventor： Lin Zhu ,  Yule Zhou ,  Zhen Li

IPC: B22C9/06 ,  B22C9/28 ,  B22D18/04

Abstract: A plunger for strengthening spoke root R angle cooling. A plunger main body is step-shaped and provided with a blind hole, and vent holes are uniformly distributed around the blind hole; an annular groove is formed in the plunger main body, and connects the blind hole with the vent holes; air outlet pipes are inserted into the blind hole, the distance between the air outlet pipes and the bottom of the blind hole is 1-1.5 times the radius of the blind hole, an annular air pipe connects the air inlet pipe with the air outlet pipes and distributes cooling air entering from an air inlet pipe to each air outlet pipe, and the diameter of the air inlet pipe is not smaller than two times that of the air outlet pipe.