Cold rolling work roller used for non-ferrous metal calendaring and preparing method of cold rolling work roller

Abstract

The invention discloses a cold rolling work roller used for non-ferrous metal calendaring and a preparing method of the cold rolling work roller and belongs to the field of cold rolling roller materials. The cold rolling roller comprises, by weight percent, 1.65%-1.92% of C, 0.32%-0.40% of Si, 1.25%-1.60% of Mn, 4.6%-6.5% of Cr, 1.55%-2.40% of Ni, 0.5%-1.0% of Mo, 4.30%-5.4% of W, 1.40%-1.65% of V, 0.3%-0.45% of Zr, 0.40%-0.65% of Ag, 0.20%-0.35% of Zn, smaller than or equal to 0.04% of S, smaller than or equal to 0.03% of P and the balance Fe. A preparing method of the cold rolling work roller comprises the steps that annealing treatment is conducted on a forging blank firstly, then rough turning is conducted, then semifinishing is conducted after quenching and tempering treatment, then tempering is conducted again after heat treatment, and finally the roller is obtained through finish grinding. The roller has high strength and high wear resistance, meanwhile, the roller has good heat conductivity and heat dissipation, heat distribution of the roller is even in the rolling process, local overheat is effectively avoided, the probability of metal calendaring material sticking can be lowered, the service life of the roller is prolonged, and the quality of rolled products is improved.

Description

technical field [0001] The invention belongs to the field of cold roll materials, and more specifically relates to a cold rolling work roll for nonferrous metal rolling and a preparation method thereof. Background technique [0002] Modern metallurgical industrial production is a systematic project integrating mining, mineral processing, sintering, ironmaking, steelmaking and steel rolling. Steel rolling is the last link of this systematic project. Most metallurgical products can only enter the market after rolling. The roll is the most important production tool in the rolling process. The quality of the roll directly affects the output and quality of metallurgical products. The level of a country's roll manufacturing technology directly reflects the level of the country's metallurgical industry. [0003] Cold roll is an essential part of metal cold rolling equipment. As a tool for plastically deforming metal, its working conditions are very complicated, and it will be subje...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem that the existing cold-rolled work rolls are rolled from 4mm to 1mm when the sheet material is rolled to 1mm, sticking material occurs on the roll surface, which causes the rolls to be damaged and scrapped. The present invention provides a cold-rolled work roll for non-ferrous metal rolling and Its preparation method optimizes the material components of the roll and improves the processing technology, so that the roll has excellent thermal conductivity and heat dissipation performance while having high strength and high wear resistance mechanical properties. Uniform distribution can effectively avoid local overheating, thereby greatly reducing the probability of non-ferrous metal calender sticking, prolonging the life of the roll and improving the quality of rolled products