Ultralow-temperature rolling imprinting strengthening method and device for surface of austenitic stainless steel plate
A technology of austenitic stainless steel and stainless steel plate, applied in the field of ultra-low temperature rolling imprinting strengthening on the surface of austenitic stainless steel plate, can solve the problems of complex rolling imprinting process, low service life, poor hardness and wear resistance, etc., and achieve surface improvement. Good performance, low strength and hardness, and small equipment tonnage
Pending Publication Date: 2022-07-29
XINJIANG UNIVERSITY
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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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[0037] The ultra-low temperature rolling embossing strengthening process on the surface of stainless steel plate see figure 2 , image 3 and Figure 4 .
[0038] Take 304 austenitic stainless steel plate ultra-low temperature rolling stamping upper and lower surface strengthening modification process as an example, such as figure 2 , image 3 and Figure 4 shown.
[0039]The whole ultra-low temperature rolling embossing forming process of 304 stainless steel plate can be divided into 3 main stages: (1) ultra-low temperature cryogenic treatment stage of 304 stainless steel plate and corrugated roll; (2) ultra-low temperature rolling embossing stage on the surface of stainless steel plate; (3) under the stainless steel plate Surface ultra-low temperature rolling embossing stage. With the advantage of 304 austenitic stainless steel inducing martensitic transformation effect in ultra-low temperature medium to improve its strength, hardness and wear resistance, the 10mm thi...
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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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IPC IPC(8): C21D8/02C21D6/04C22F1/04C22F1/08C22F1/10
CPCC21D8/0247C21D8/0205C21D8/0221C21D6/04C22F1/04C22F1/08C22F1/10
Inventor 程旺军陈玉锋孙耀宁李骁胡国玉
Owner XINJIANG UNIVERSITY
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