Solidification orientation device under magnetic field

Abstract

The invention relates to a solidification orientation device under a magnetic field, and belongs to the technical field of electromagnetic casting. The device comprises a cylindrical cooling copper die connected with a shell through a second flange, the shell is connected with a sealing cover through a first flange, an air inflation hole is formed in the first flange, a crucible is fixed in the shell, and a gap is reserved between the crucible and the shell and communicated with the first flange; the outer wall of the crucible is wound with an induction heating coil, a casting opening is formed in the bottom of the crucible, a casting control lever is arranged in the crucible, and the casting opening can be plugged in a casting sealing manner when the casting control lever downwards moves; a through hole and an air through hole are formed in the bottom of the shell, the gap and the second flange are communicated through the air through hole, and an exhaust hole is formed in the second flange; and a steady-state magnetic field generator is arranged outside the cooling copper die, a base plate of the cooling copper die is provided with a ring-shaped groove homocentric with the inner wall of the cooling copper die, a quartz tube is installed in the groove, and a conic diverter is arranged at the top of the quartz tube. The solidification orientation device is simple in structure and convenient to use; and studying of the included angle relationship between multiple different solidification organization growth directions and the magnetic field direction can be achieved in one experiment.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic casting, in particular to a solidification orientation device under a magnetic field. Background technique [0002] The solidification structure when the metal melt is solidified will be affected by the distribution of the temperature field and the direction of the magnetic field. The size and direction of the temperature gradient in the melt determine the size and growth direction of the solidification structure, and the difference between the direction of the magnetic field and the growth direction of the solidification structure The angle also determines the different effects of the solidification structure of the melt. However, most of the samples used in the vacuum pouring experiments in the existing magnetic field environment are cuboids or cylinders. Therefore, each experiment can only study the relationship between the growth direction of a single solidified tissue and the directi...

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Problems solved by technology

However, most of the samples used in the vacuum pouring experiments in the existing magnetic field environment are cuboids or cylinders. Therefore, each experiment can only study the relationship between the growth direction of a single solidified tissue and the direction of the magnetic field, and the temperature gradient is difficult to control. If you want to study the relationship between the growth direction of multiple different solidified tissues and the angle between the magnetic field direction, you need Doing a lot of experiments not only wastes raw materials and energy, but also greatly reduces the efficiency of experiments

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