公开(公告)号：US20230278095A1

公开(公告)日：2023-09-07

申请号：US17685105

申请日：2022-03-02

Applicant: Qingyou Han

Inventor： Qingyou Han ,  Jianhua Wu ,  Dashan Sui

IPC: B22D27/04 ,  B22C9/02 ,  B22D30/00 ,  B22D37/00

CPC classification number: B22D27/04 ,  B22C9/02 ,  B22D30/00 ,  B22D37/00

Abstract: A process for high integrity castings of metals and their alloys includes the steps of providing at least a sand mold at desired elevated temperatures, delivering a molten metal into the mold, and supplying a predetermined amount of coolant to contact the surfaces of the casting at desired rates, times, and durations to achieve an acceptable level of progressive solidification from the distal end of the casting towards the riser until the casting has reached desired temperatures.

公开(公告)号：US20240278315A1

公开(公告)日：2024-08-22

申请号：US18648457

申请日：2024-04-28

Applicant: Qingyou Han

Inventor： Qingyou Han ,  Jianhua Wu ,  Dashan Sui

IPC: B22D27/04 ,  B22C9/02 ,  B22D30/00 ,  B22D37/00

CPC classification number: B22D27/04 ,  B22C9/02 ,  B22D30/00 ,  B22D37/00

Abstract: A process for high integrity large thin-walled castings of metals and their alloys using a single downsprue includes the steps of providing at least a sand mold at desired elevated temperatures, delivering a molten metal into the mold, and supplying a predetermined amount of coolant to contact the surfaces of the casting at desired rates, times, and durations to achieve an acceptable level of progressive solidification from the distal end of the casting towards the riser until the casting has reached desired temperatures.