High-temperature-resistant and water-cooling-free roll and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant and water-cooling-free roll and a preparation method of the high-temperature-resistant and water-cooling-free roll. The high-temperature-resistantand water-cooling-free roll is prepared from the following components in percentage by weight: 0.3 to 0.5 percent of C, 0.5 to 0.8 percent of Si, 0.2 to 0.4 percent of Mn, 0.5 to 1.5 percent of Ni, 30to 31 percent of Cr, 2.1 to 2.3 percent of Mo, 0.15 to 0.3 percent of V, 4.5 to 6.0 percent of Al, 1.3 to 1.8 percent of W, 0.1 to 0.2 percent of Ti, 0.15 to 0.2 percent of Nb, 0.08 to 0.15 percent of N, and the balance of Fe and other inevitable impurity elements. The preparation method of the high-temperature-resistant and water-cooling-free roll comprises the steps of smelting, casting, heating and heat preservation, forging, rolling, solid solution treatment, machining, flaw detection, detection, washing and warehousing. The high-temperature-resistant performance of the water-cooling-freeroll can be remarkably improved, the cost performance is high, and oxidation accumulated humps can be effectively prevented.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a high temperature resistant waterless chill roll and a preparation method thereof. Background technique [0002] As we all know, in the field of iron and steel metallurgy, the continuous heating roller hearth furnace is the main industrial furnace type for heat treatment of various plates, pipes, bars and long sections, and the furnace roller in the roller hearth furnace is the key configuration structure in the furnace structure Parts, whose cost accounts for 20%-30% of the overall cost, and it bears the load of the charge, is responsible for the task of conveying the charge through the furnace in a high-temperature heating environment, and is a consumable part. At present, there are two main structural forms of the furnace roll: one is the furnace roll with water cooling structure, the principle is that a core tube is built in the roll body, and water is passed through the core tube ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-temperature-resistant waterless chill roll and its preparation method to solve the technical problems of serious steel sticking problem of water-free chill roll and low cost performance of water-free chill roll materials

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