How to choose all parts of accessories

Regarding the selection of rolls for rolling mills, in general, from the roughing mill frame to the finished rolling frame, the reduction is from large to small, but the rolling speed is getting higher and higher. Therefore, the general roll selection is: the coarse roll is mainly based on strength and thermal cracking resistance, taking into account wear resistance; the fine roll is mainly based on wear resistance, taking into account thermal cracking resistance and strength.

What to do if the screw is automatically loosened

Increase the friction resistance torque between the threads, appropriately increase the diameter of the thread under pressure, reduce the thread angle, and increase the self-locking ability. However, it should be noted that too large a diameter will cause the size of the mill to be too large. Increase the diameter d3 of the pressed threaded spherical pad and the diameter d4 of the opening, thereby increasing the friction torque. In addition, the appropriate selection of lubricants, regular lubrication of the components.

The Origin of Rolling Mill

It is said that there was a rolling mill in Europe in the 14th century, but it is recorded that in 1480, the Italian Leonardo da Vinci designed the sketch of the rolling mill. In 1553, the Frenchman Brewer (Brulier) rolled out gold and silver plates to make coins. Rolling mills have since appeared in Spain, Belgium and England.

Roll use should pay attention to what?

As we all know, the roll is a vulnerable part in the rolling process, and sometimes the use of incorrect can directly destroy the roll, bringing losses and inconvenience to production. Today we rolling mill manufacturers to summarize the correct usage and maintenance requirements of the roll. In the rolling process, the roller is in contact with the high temperature rolling material, and must bear the rolling pressure, the twisting force must also bear the mechanical impact, mechanical wear and thermal action. Improper handling will cause roll fatigue, roll failure.