In addition to considering the wear of the roll surface, the roll scrapping mainly depends on the size of the final working roll diameter. If the roll diameter is too small, it affects the strength of the roll and the bite of the workpiece. It is also limited by the inclination angle of the connecting precision swiss machining aluminum 3d printer motor shaft and the center line of the roll. When using a universal joint, the allowable inclination angle between the joint and the center line of the roll is 8° to 10°; when using a plum blossom joint, the allowable inclination angle between the joint and the center line of the roll is 1° to 2°. Therefore, when a universal joint is used, the main basis for scrapping a roll is the depth and bite of the chilled layer of the roll; when a plum blossom joint is used, the main basis for scrapping a roll is the inclination angle between the center line of the roll and the plum blossom shaft. , excessive inclination will damage the herringbone gear seat. The commonly used section steel rolling mill roll diameter range is: Rolling mill name Roll diameter variation range, mm650 rolling mill 630~680500 rolling mill 480~540430 rolling mill 410~455300 rolling mill 290~325280 rolling mill 260~290 250 rolling mill 240~270
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