Bionic, non-smooth and abrasion-resistant roller

Abstract

The present invention belongs to a roll for rolling shaped material, and its technical scheme is aimed at raise wear-resisting property of roll surface and providing a bionic non-smooth wear-resisting roll, so that it can effectively raise service life of shaped material roll. Said roll can be formed from wear-resisting material roll skin and core material with good toughness, and its surface hasthe micrometer, level concave-convex, waveform and scale non-smooth surface.

Description

technical field [0001] The invention belongs to rolls for rolling profiles. Background technique [0002] The rolls used in the rolling mill, in the process of rolling various wire rods, bars, narrow strip steel, medium strip steel, and seamless steel pipes, work under the conditions of high temperature, high load and high speed, and the working conditions are harsh , the roll is required to have high strength, toughness, wear resistance, surface roughness resistance and thermal crack resistance. Therefore, the requirements for the material and process of manufacturing the roll are high. [0003] At present, most of the rolls used in rolling mills still use high-alloy infinite chilled rolls and alloy semi-steel rolls, and most of these rolls are produced from the same material. For the same material, wear resistance and toughness are often two contradictory indicators, and the roll requires high wear resistance on the surface and good toughness on the core, but they are mut...

AI Technical Summary

Problems solved by technology

For the same material, wear resistance and toughness are often two contradictory indicators, and the roll requires high wear resistance on the surface and good toughness on the core, but they are mutually restrictive in production

If the wear resistance of the roll is high, the toughness is obviously insufficient, and roll breakage often occurs during production; if the toughness is good, the wear resistance is poor

Therefore, the rolls manufactured by the existing materials and processes have low production efficiency and high cost. Taking a steel company as an example, the profile rolls need to be replaced three times per shift of eight hours, and the high-speed wire rolls need to be replaced every day for two hours.

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