Method for surfacepeening multicomponent composite ceramic membrane of non-ferrous metal hot-working roll

A multi-component composite and non-ferrous metal technology, which is applied in metal processing equipment, metal rolling, metal rolling, etc., can solve problems such as crack patterns, and the effect of improving the service life of rolls is not obvious, and achieve grain boundary strengthening and stability, Improve the surface corrosion resistance and wear resistance, improve the effect of surface fatigue resistance

Inactive Publication Date: 2011-10-12
CHENGDU SURFACE METAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent 200410051107.5 discloses a surface treatment method and manufacturing method of an alloy roll, which forms a nitrided and oxidized structure layer with a thickness of 15 μm-35 μm on the surface of the roll. The effect of improving the service life is not obvious
Therefore, the traditional roll has "crack patterns" 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 1

[0017] First, the roll is subjected to quenching and tempering treatment; then, the roll is subjected to liquid-phase aluminum-magnesium-manganese-silicon diffusion co-infiltration treatment and post-infiltration polishing treatment, and the thickness of the infiltration layer after polishing treatment is controlled at 10 μm-25 μm. The temperature conditions of the co-infiltration treatment The temperature is 550°C, and the treatment time is 120s, wherein the liquid-phase aluminum-magnesium-manganese-silicon is composed of 70% Al, 20% Mg, 1.5% Mn, and 8.5% Si by weight percentage; A multi-component composite ceramic tissue layer of iron-nitride-manganese-aluminum-magnesium-silicon composite ceramic structure with a thickness of 15 μm-30 μm is formed on the surface, that is, a multiple composite ceramic film. The temperature condition of the nitriding treatment is 570 ° C, and the treatment time is 180 minutes, and then the roll is polished. , remove the loose layer on the surfa...

Embodiment 2

[0019] First, the roll is subjected to quenching and tempering treatment; then, the roll is subjected to liquid-phase aluminum-magnesium-manganese-silicon diffusion co-infiltration treatment and post-infiltration polishing treatment, and the thickness of the infiltration layer after polishing treatment is controlled at 10 μm-25 μm. The temperature conditions of the co-infiltration treatment The temperature is 550°C, and the treatment time is 120s, wherein the liquid-phase aluminum-magnesium-manganese-silicon is composed of 70% Al, 20% Mg, 1% Mn, and 9% Si by weight percentage; A multi-component composite ceramic tissue layer of iron-nitride-manganese-aluminum-magnesium-silicon with a thickness of 15 μm-30 μm is formed on the surface. The temperature condition of the nitriding treatment is 570° C., and the treatment time is 180 minutes. Then, the roll is polished to remove looseness on the surface of the roll. layer; finally the roll is oxidized, the temperature condition of the...

Embodiment 3

[0021] First, the roll is subjected to quenching and tempering treatment; then, the roll is subjected to liquid-phase aluminum-magnesium-manganese-silicon diffusion co-infiltration treatment and post-infiltration polishing treatment, and the thickness of the infiltration layer after polishing treatment is controlled at 10 μm-25 μm. The temperature conditions of the co-infiltration treatment The temperature is 560°C, and the treatment time is 110s, wherein the liquid-phase aluminum-magnesium-manganese-silicon is composed of 65% Al, 25% Mg, 1% Mn, and 9% Si by weight percentage; Form a multi-component composite ceramic tissue layer of iron-nitride-manganese-aluminum-magnesium-silicon with a thickness of 15 μm-30 μm on the surface. The temperature condition of the nitriding treatment is 560 ° C, and the treatment time is 180 minutes. Then, the roll is polished to remove the looseness on the surface of the roll. layer; finally the roll is oxidized, the temperature condition of the ...

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Abstract

The invention discloses a method for surfacepeening a multicomponent composite ceramic membrane of a non-ferrous metal hot-working roll. The method can improve the service life of the roll by 1 to 5 times. The method comprises the following steps of: performing liquid phase aluminum-magnesium-manganese-silicon multicomponent cementation and polishing treatment on the roll; then performing nitridation and polishing treatment; and finally performing oxidation treatment on the roll to form a compact nitrogen-oxygen iron-manganese-aluminum-magnesium-silicon multicomponent composite ceramic tissuelayer which has good mechanical properties and physical and chemical properties and has the thickness of 20 to 35 mu m on the surface of the roll, wherein the nitrogen-oxygen iron-manganese-aluminum-magnesium-silicon multicomponent composite ceramic tissue layer is formed by compositing square and hexagonal system ceramic phases and is fixed on the surface of the roll to obviously improve the corrosion resistance and the thermal fatigue resistance under the stress state of the non-ferrous metal hot-working roll. The method can take thermal refining as adopted preheat treatment technology before performing the cementation on the roller.

Description

technical field [0001] The invention relates to a surface strengthening treatment method, in particular to a multi-element composite ceramic film surface strengthening treatment method for non-ferrous metal thermal processing rolls. Background technique [0002] According to statistics, some traditional non-ferrous metal hot rolling rolls fail after continuous rolling of about 600 tons of metal rods; the short service life of the rolls seriously restricts the production efficiency of continuous rolling equipment, and makes the production cost of the products in the Not high enough. [0003] In order to solve the problem of short service life of non-ferrous metal hot-rolled rolls, the existing technical measures are: 1. Replace materials and manufacture rolls by using different hot-working die steels; 2. Improve the surface hardness of roll grooves. The heat treatment process of metal hot-rolled rolls is generally a quenching and tempering process; in the past two decades, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C12/00B21B27/00
Inventor 赵萍
Owner CHENGDU SURFACE METAL TECH
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