US 12,110,607 B2
Apparatus, method, and process for directional solidification by liquid metal spraying enhanced cooling (LMSC)
Zhongming Ren, Shanghai (CN); Jiang Wang, Shanghai (CN); Xingfu Ren, Shanghai (CN); Zhenqiang Zhang, Shanghai (CN); Xiaoxin Zhang, Shanghai (CN); Xia Li, Shanghai (CN); Tingsheng Tu, Shanghai (CN); and Baojun Wang, Shanghai (CN)
Assigned to Shanghai University, Shanghai (CN)
Filed by Shanghai University, Shanghai (CN)
Filed on Aug. 9, 2022, as Appl. No. 17/884,092.
Claims priority of application No. 202111392208.9 (CN), filed on Nov. 19, 2021.
Prior Publication US 2023/0160092 A1, May 25, 2023
Int. Cl. C30B 11/02 (2006.01); C30B 11/00 (2006.01); C30B 11/14 (2006.01)
CPC C30B 11/003 (2013.01) [C30B 11/006 (2013.01); C30B 11/02 (2013.01); C30B 11/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for directional solidification by liquid metal spraying enhanced cooling (LMSC), comprising:
a vacuum pump;
a main furnace body;
a submerged liquid metal pump;
an induction melting coil;
a mold shell heating and insulation cavity;
a liquid metal sprayer;
a water-cooled copper plate crystallizer;
a liquid metal collector and an internal melting metal furnace arranged in the main furnace body from top to bottom in a vertical direction; and
an external melting metal furnace;
wherein:
the main furnace body is communicated with the submerged liquid metal pump through a liquid metal transportation tubing;
the liquid metal transportation tubing comprises an upper liquid metal transportation tubing and a lower liquid metal transportation tubing;
the main furnace body is connected to the vacuum pump;
the upper liquid metal transportation tubing comprises one end communicated with the liquid metal sprayer and the other end communicated with the submerged liquid metal pump;
the lower liquid metal transportation tubing comprises one end communicated with the internal melting metal furnace and the other end communicated with the submerged liquid metal pump;
the water-cooled copper plate crystallizer and the liquid metal collector are capable of being moved in the vertical direction in the main furnace body through a seeding system;
the seeding system comprises a servo motor;
the external melting metal furnace is located outside the main furnace body;
the submerged liquid metal pump is arranged on the external melting metal furnace;
the submerged liquid metal pump comprises a pump body;
the pump body is placed in the external melting metal furnace;
both the upper liquid metal transportation tubing and the lower liquid metal transportation tubing are communicated with the external melting metal furnace;
the submerged liquid metal pump is vacuum sealed with the external melting metal furnace; and
the submerged liquid metal pump is a mechanical liquid metal pump or a magnetic liquid metal pump.