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Roll selection
The commonly used roll materials and uses are shown in the table. The performance and quality of a roll generally depend on its chemical composition and manufacturing method, and can be evaluated by its structure, physical and mechanical properties, and the type of residual stress existing in the roll (see roll inspection). The effect of the roll in the mill depends not only on the material of the roll and its metallurgical quality, but also on the conditions of use, roll design, operation and maintenance. The conditions of use of rolls of different types of mills are very different, and the factors that cause the difference are:(1) the conditions of the mill. Such as mill type, mill and roll design, pass design, water cooling conditions and bearing types, etc.;(2) rolling conditions such as rolling material varieties, specifications and their deformation resistance, pressure system and temperature system, output requirements and operation, etc.;(3) product quality and surface quality requirements.
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2024-06-06
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