A molten salt thermal diffusion treatment equipment and its application

Abstract

The invention discloses a fused salt heat diffusion treatment device and application thereof. The fused salt heat diffusion treatment device comprises a gas supply system, a vacuum system, a furnace body, a circulation water coil, a sample chamber, a crucible and a supporting rod. The gas supply system communicates with the furnace body through a gas inlet pipe. The vacuum system communicates with the furnace body through a first gas outlet pipe. The upper portion of the furnace body is sleeved with the circulation water coil. The crucible is arranged at the bottom of the furnace body and comprises a crucible body and a crucible cover plate. A first annular groove is formed in the outer side of the upper end of the crucible body, and an opening of the crucible cover plate downwards wraps an opening of the crucible and stretches in the first annular groove. The supporting rod sequentially penetrates a furnace door on the furnace body and the crucible cover plate and stretches in the crucible. The end, stretching in the crucible, of the supporting rod is connected with the sample chamber. The fused salt heat diffusion treatment device is high in treatment efficiency, the system is airtight, the water oxygen content of the system can be controlled, fused salt steam or decomposed products of the fused salt steam are prevented from being diffused outside the crucible so that influences of fused salt fog can be reduced, and the phenomenon that the device is corroded or the fused salt fog is accumulated on a resistance wire of a heating furnace to cause short circuits is avoided.

Description

technical field [0001] The invention relates to molten salt thermal diffusion processing equipment and its application. Background technique [0002] With the development of science and technology, the production and technical fields put forward higher and higher requirements on the properties of materials such as hardness, wear resistance, high temperature resistance, corrosion resistance and fatigue resistance. Surface modification technology usually adopts some kind of technological means to make the surface of metal materials obtain a surface structure whose performance is much better than that of metal materials. After the surface modification treatment of metal materials, it can not only exert the mechanical properties of the base material, but also obtain many excellent properties on the surface of the material. Because the cost of surface modification treatment technology is relatively low, it is more and more favored by those skilled in the art. [0003] Common su...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that the crucible is exposed to the atmosphere in the prior art, without a protective atmosphere, the water and oxygen in the atmosphere dissolve into the molten salt, resulting in the deposition of the molten salt, affecting the activity of the molten salt, and the It is easy to decompose and volatilize at high temperature, and its decomposition products or molten salt smoke will cause corrosion to the equipment or accumulate on the resistance wire of the heating furnace to cause short circuit defects of the equipment. A molten salt thermal diffusion treatment equipment and its application are provided

Images