Ultralow-temperature rolling imprinting strengthening method and device for surface of austenitic stainless steel plate

Abstract

The invention provides an austenitic stainless steel plate surface ultralow-temperature rolling imprinting strengthening method and device, and belongs to the technical field of special steel surface modification. The invention provides an austenitic stainless steel plate surface ultralow-temperature rolling impressing strengthening method and device aiming at the defects that when an austenitic stainless steel plate is in service, the surface hardness is low, scratching is prone to occurring, and attractiveness is affected. Firstly, a stainless steel plate is placed on a supporting plate in a cooling tank to be positioned, the positioned stainless steel plate and a corrugated roller are soaked and cooled at the same time through an ultralow-temperature medium filled in the cooling tank, and the temperature of the stainless steel plate is kept at the liquid nitrogen temperature. The cooled corrugated roller is driven by the servo hydraulic system to conduct rolling coining on the upper surface and the lower surface of the stainless steel plate in the liquid nitrogen environment, so that the surface strength and hardness of the stainless steel plate are remarkably improved. The austenitic stainless steel plate surface ultralow-temperature rolling imprinting strengthening method and device have the advantages of being rapid, efficient, environmentally friendly, remarkable in process integration level and strengthening effect and the like.

Description

technical field [0001] The invention belongs to the technical field of surface modification of special steel, in particular to a method and a device for strengthening the surface of an austenitic stainless steel plate by ultra-low temperature rolling embossing. Background technique [0002] Stainless steel rolling platen is widely used in airports, railway stations, hospitals, schools and other places with dense traffic due to its good anti-skid, corrosion resistance and beautiful appearance. Such components have higher requirements on the pattern shape, material strength, hardness and wear resistance of surface imprinting. Traditional austenitic stainless steel has good corrosion resistance, but its strength, hardness and wear resistance are poor, which greatly restricts the long-life service and efficient application of such components. In order to solve the above application problems, based on the martensitic transformation effect induced by the ultra-low temperature def...

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Problems solved by technology

[0004] The invention proposes a method and device for strengthening the surface of austenitic stainless steel plate by ultra-low temperature rolling embossing, aiming to solve the technical problems existing in the prior art: the traditional rolling embossing process of austenitic stainless steel plate is complicated, the strength, hardness and resistance of the components Poor abrasiveness, low service life, etc.

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