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Half hook roll is one of the rolls. Now the roll industry has been further developed, which will promote the gradual progress of rolling mill operation rate and the continuous improvement of rolling process. The setting process, heat treatment process, mechanical function and wear resistance of high carbon high speed steel for roll have also been deeply studied in China. In order to improve the setting arrangement of high-speed steel roll and advance its mechanical function, the modification treatment method of high-speed steel roll is also discussed in China, which significantly improves the arrangement and function of high-speed steel roll.




The extensive use of alloy elements in rolls is the result of higher requirements for roll function after the Second World War, which is the development of steel rolling equipment towards large-scale, continuous, high-speed and automation, as well as the improvement of rolling strength and deformation resistance. During this period, semi steel rolls and nodular cast iron rolls were successively presented. After the 1960s, powder tungsten carbide roll was successfully developed. In the early 1970s, the centrifugal casting skills and differential temperature heat treatment skills of rolls were widely implemented in Japan and Europe, which significantly improved the comprehensive functions of plate and strip rolls. Composite high chromium cast iron rolls have also been successfully used in hot strip mills. In the same period, cast white iron and semi steel rolls were used in Japan.

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Half hook roll

Half hook roll