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Hot rolled strip finishing work roll
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Hot rolled strip finishing work roll
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In modern steel industry production, hot-rolled strip, as one of the important steel products, is widely used in automobiles, construction, machinery manufacturing and other fields. In the production process of hot-rolled strip, the finishing work roll, as a core equipment component, its performance and service life are directly related to the product quality and production cost. This article will delve into the material selection, manufacturing process, performance and maintenance management of hot-rolled strip finishing work rolls.
Material Selection of Finishing Work Rolls
The working environment of finishing work rolls is extremely harsh. They must not only withstand high temperature, high pressure, and high-speed friction and wear, but also resist thermal fatigue, thermal cracks, and other forms of damage. Therefore, selecting appropriate materials is the key to ensuring the performance of finishing work rolls.
Currently, hot-rolled strip finishing work rolls mainly use high-carbon chromium steel, semi-high-speed steel, and high-speed steel. High-carbon chromium steel has good hardenability and wear resistance, suitable for producing hot-rolled strip with general requirements; semi-high-speed steel and high-speed steel, due to their higher hardness, red hardness, and resistance to thermal fatigue, are widely used in the production of high-strength, high-alloy hot-rolled strip. In addition, in order to improve the service life of work rolls, composite roll technology has been developed in recent years, that is, using materials with better toughness in the core, while the working layer uses materials with high hardness and high wear resistance, to achieve the optimal combination of performance. The performance requirements for finishing work rolls will become increasingly higher, and new technologies and materials will need to be continuously explored in the future to meet higher-level production needs.
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