Roll processing method suitable for improving forging penetration and shortening heat treatment period

Abstract

The invention relates to a roll processing method suitable for improving forging penetration and shortening a heat treatment period. The method successively comprises the steps of selecting a steel ingot for blanking; forging the steel ingot to form a roll blank; carrying out heat treatment normalizing on the roll blank; roughly turning the roll blank; and carrying out semifinishing on the roll blank. A forging method and a heat treatment method in a production process are improved so that a manufactured roller is good in outer surface quality, low in inclusion content, fine in spheroidized organization grain and low in carbide level, a hardness after heat treatment is lower than a standard requirement, a user requirement is satisfied, about 40% of furnace hour is saved, energy consumptionis reduced, and cost is saved.

Description

technical field [0001] The invention relates to a roll processing method suitable for improving forgeability and shortening heat treatment cycle. Background technique [0002] The roll is known as the "mother of steel". It is a tool for plastically deforming metal materials in the rolling production of steel, aluminum, copper and other metals. The consumption cost of the indispensable key parts and the most important mass consumption parts of rolling is about 5% to 15% of the production cost of steel rolling. If factors such as production downtime, reduced production and increased equipment maintenance due to roll consumption are considered, the proportion of production costs will be even higher. [0003] The problems existing in the rolls currently on the market are that during the production process of the rolls, the hydrogen content of the surface layer is high, the inclusions are high, prone to damage, and the internal structure of the rolls is unbalanced, resulting in ...

AI Technical Summary

Problems solved by technology

If factors such as production downtime, production reduction and equipment maintenance increase due to roll consumption are considered, the proportion of production costs will be higher

[0003] The problems existing in the rolls currently on the market are that during the production process of the rolls, the hydrogen content in the surface layer is high, the inclusions are high, prone to damage, and the internal structure of the rolls is unbalanced, resulting in low quality and short service life of the entire roll.