High temperature-resistant impact-resistant composite roll

Abstract

The invention discloses a high-temperature-resistant and impact-resistant composite roll, comprising: an impact-resistant body and a high-temperature-resistant layer, and the high-temperature-resistant layer is inlaid and cast on the outer surface of the impact-resistant body; the impact-resistant body includes the following mass percentage content Composition: C content accounts for 0.8‑1.2%, Ti content accounts for 1.2‑3.4%, Si content accounts for 0.6‑0.8%, Mn content accounts for 1.2‑1.6%, Cr content accounts for 0.3‑0.5%, Zn content content of 0.02-0.05%, the content of P does not exceed 0.02%, the content of S does not exceed 0.015%, and the balance is Fe; the high temperature resistant layer is made of calcium stearate, lime powder and tungsten powder. Percentage calculation, the content of described calcium stearate accounts for 21-33%, and the content of described tungsten powder accounts for 3-7%, and surplus is lime powder, and by above-mentioned method, the present invention can possess high temperature resistance, impact resistance. Features, can be in the case of high temperature or large temperature difference, the comprehensive performance is stable, and there is no crack on the surface.

Description

technical field [0001] The invention relates to a roll, in particular to a high-temperature-resistant and impact-resistant composite roll. Background technique [0002] The roll is an important part consumed in large quantities in steel rolling production. The quality of the roll not only affects the surface quality of the rolled material, but also affects the operating rate of the rolling mill. At present, the traditional roll is only smelted and poured from a single alloy material, and Although the production of this kind of roll is relatively convenient, the performance is relatively single, and the roll cannot meet multiple characteristics at the same time. At the same time, it must be ensured that there are no cracks on the surface under long-term use, so as not to affect normal use. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a high-temperature-resistant and impact-resistant composite roll, which can ...

AI Technical Summary

Problems solved by technology

[0002] The roll is an important part consumed in large quantities in steel rolling production. The quality of the roll not only affects the surface quality of the rolled material, but also affects the operating rate of the rolling mill. At present, the traditional roll is only smelted and poured from a single alloy material, and Although the production of this kind of roll is relatively convenient, the performance is relatively single, and the roll cannot meet multiple characteristics at the same time. At the same time, it must be ensured that there are no cracks on the surface under long-term use, so as not to affect normal use