公开(公告)号：US20180001373A1

公开(公告)日：2018-01-04

申请号：US15640708

申请日：2017-07-03

Applicant: CITIC Dicastal CO., LTD

Inventor： Guohua Liu ,  Xu Wang ,  Xueqiang Li ,  Dong Xing ,  Junmeng Li ,  Changhai Li ,  Zhihua Zhu ,  Yongning Wang

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

CPC classification number: B22C9/065 ,  B22C9/28 ,  B22D18/04

Abstract: A low-pressure mold for improving performance of spokes of an aluminum wheel. The mold is characterized in that cooling air holes in a bottom mold are moved for 10 mm in outwards; heat-insulation grooves are formed in positions, 5 mm from the cooling air holes, of a back cavity of the bottom mold, and are 8 mm from the surface of a cavity; and the width of each heat-insulation groove is set to 8 mm. A circumference arrangement range of the heat-insulation grooves needs to be larger than the widths of the spokes, and the number of the heat-insulation grooves is defined by the number of the spokes. Heat-preservation asbestos is arranged in each heat-insulation groove, thereby further strengthening heat-insulation and heat preservation functions. One air hole is added based on the prior art, thereby increasing the cooling area and improving the cooling intensity.

公开(公告)号：US10245635B2

公开(公告)日：2019-04-02

申请号：US15640708

申请日：2017-07-03

Applicant: CITIC Dicastal CO., LTD

Inventor： Guohua Liu ,  Xu Wang ,  Xueqiang Li ,  Dong Xing ,  Junmeng Li ,  Changhai Li ,  Zhihua Zhu ,  Yongning Wang

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

Abstract: A low-pressure mold for improving performance of spokes of an aluminum wheel. The mold is characterized in that cooling air holes in a bottom mold are moved for 10 mm outwards; heat-insulation grooves are formed in positions, 5 mm from the cooling air holes, of a back cavity of the bottom mold, and are 8 mm from the surface of a cavity; and the width of each heat-insulation groove is set to 8 mm. A circumference arrangement range of the heat-insulation grooves needs to be larger than the widths of the spokes, and the number of the heat-insulation grooves is defined by the number of the spokes. Heat-preservation asbestos is arranged in each heat-insulation groove, thereby further strengthening heat-insulation and heat preservation functions. One air hole is added based on the prior art, thereby increasing the cooling area and improving the cooling intensity.