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Multi-component composite inorganic ceramic film antifatigue treatment method

An inorganic ceramic membrane, multi-component composite technology, applied in metal material coating process, coating, solid-state diffusion coating and other directions, can solve the problem of surface fatigue damage of hole grooves, and improve surface corrosion resistance and wear resistance. The effect of improving performance, service life, and improving the fatigue resistance of the surface layer

Inactive Publication Date: 2019-05-21
程淑清
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, the traditional roll has "crack pattern" on the surface of the pass groove in a short working time and is scrapped.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] First, the roll is subjected to quenching and tempering treatment; then, the roll is subjected to liquid phase diffusion co-infiltration treatment and post-infiltration polishing treatment. The thickness of the infiltration layer after polishing treatment is controlled at 10 μm-25 μm, and the temperature condition of the co-infiltration treatment is 550 ° C. The treatment time is 120s, wherein the liquid phase is composed of 70% Na, 20% Pb, 1.5% Mn, and 8.5% Br by weight percentage; Multi-component composite ceramic tissue layer, that is, multi-component composite inorganic ceramic membrane, the temperature condition of the nitriding treatment is 570°C, the treatment time is 180min, and then the roll is polished to remove the loose layer on the surface of the roll; finally, the roll is oxidized , the temperature condition of the oxidation treatment is 420° C., and the treatment time is 25 minutes, so that the surface of the roll forms a multi-element composite ceramic ti...

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Abstract

The invention discloses a multi-component composite inorganic ceramic film antifatigue treatment method. The method comprises the steps that a roller is subjected to liquid phase multi-component thermochemical treatment and polishing treatment at first, then nitriding and polishing treatment are conducted, finally the roller is oxidized, and a dense multi-component composite ceramic structural layer with the thickness being 20 [mu]m to 35 [mu]m and excellent mechanical properties and physical and chemical properties is formed on the surface of the roller, wherein the multi-component compositeceramic layer is formed by compositing square crystal system ceramic phases and hexagonal crystal system ceramic phases and fixed to the surface of the roller, and thus, the corrosion resistance and thermal fatigue resistance of the non-ferrous metal hot rolling roller in the stress state are significantly improved. According to the method, thermal refining can be used as a preliminary heat treatment process before thermochemical treatment of the roller.

Description

technical field [0001] The invention relates to a method for treating fatigue resistance, in particular to a method for treating fatigue resistance of multi-component composite inorganic ceramic membranes. Background technique [0002] After research, in the process of hot continuous rolling of non-ferrous metals (hot extrusion processing and cold processing as well), since the roll is a steel material, the electrode potential of the non-ferrous metal material is different, so the roll, non-ferrous metal rolling material and rolling lubricant ( The processing system composed of water-based emulsion) has also become a chemical primary battery system. When the rolled material is a copper alloy material, the roll is a "sacrificial anode"; the roll is subjected to electrochemical corrosion under rolling stress conditions and stress (thermal stress and rolling stress) fatigue under corrosion conditions. Therefore, "crack patterns" of fatigue damage characteristics appear on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C12/00
Inventor 程淑清
Owner 程淑清
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