Outer layer material used for centrifugal roller

Abstract

The invention discloses an outer layer material of roller, which solves the problem of ensuring performance of the roller and reducing the manufacturing cost. The technical measures for problem solving include: components and their weight percent: C: 3.1 to 3.5, Si: 0.6 to 1.2, Mn: 0.4 to 0.8, S: less than or equal to 0.03, Cr: 1.5 to 2.0, Mo: 0.2 to 0.5, Ni: 3.6 to 3.9, Cu: 0.2 to 1.0, and others are Fe and inevitable imparities. Compared with the prior art, the invention replaces partial Ni with easily available Cu element, which not only reduces the manufacturing cost and has good economicbenefit, but also the performance of the roller is stable, which meets the demand of the users.

Description

Outer layer material for centrifugal roll Technical field The invention relates to a metal material, and belongs to a material for the outer layer of a roll. Background technique In the prior art, according to the preliminary search of the national standard of cast iron rolls and related materials, it is found that most of the outer layer materials of centrifugal composite cast iron rolls are high nickel-chromium alloys. Copper is generally not used for chemical composition analysis and inspection. It can also be said that copper is in High nickel-chromium centrifugal roll material has not been added as a necessary element. For example, the Chinese patent with publication number CN1439472 and the US patent US5081760 are not found to contain copper. With the development of the industrial economy, the price of some rare metals has become more and more expensive, especially for nickel, which has risen from tens of thousands to hundreds of thousands, resulting in a substantial in...

AI Technical Summary

Problems solved by technology

With the development of industrial economy, the price of some rare metals is becoming more and more expensive, especially for nickel element, which has risen from tens of thousands of yuan to hundreds of thousands of yuan, resulting in a substantial increase in the production cost of centrifugal composite cast iron rolls. It has to make people seek a way that can meet the requirements of users and reduce costs under the premise of ensuring the performance of centrifugal composite cast iron rolls, such as hardness.