Roll processing method suitable for improving forgeability and shortening heat treatment cycle

Abstract

The invention relates to a roll processing method suitable for improving forgeability and shortening the heat treatment cycle, which sequentially includes selecting steel ingots for blanking → performing a forging process on the steel ingots to form a roll blank → heat treatment and normalizing the roll blank → rough turning of the roll blank → semi-roll blank finishing. The forging method and heat treatment method in the production process are improved, so that the prepared roll has good outer surface quality, low inclusions, fine spheroidized grains, low carbide grade, and the hardness after heat treatment is lower than the standard requirement, which meets user requirements and saves About 40% furnace time, reducing energy consumption and saving costs.

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.