Why does the six high cold rolling mill need to shift the roll and the fundamental reason for the damage of the driving system and roll box of the positive and intermediate roll

Six high cold rolling mill is a common type of cold rolling mill, and it is also widely used in some levels or industries. In addition, it is one of the commodities in the online platform. Therefore, it is urgent to master this kind of cold rolling mill, and it can not be carried out carelessly. Therefore, why not carry out it again on the existing basis, so that everyone can deeply understand it and have a full understanding.
1. In the six high cold rolling mill, what is the purpose of roll shifting to ensure?
The roll shifting in the six high cold rolling mill is to ensure the shape of the inlet and outlet of the hot-rolled strip, and is generally carried out on the middle roll. The standard deviation calculation is related to the roll diameter of support plate roll, intermediate roll and working roll. In addition, it is also related to the adjustment index of intermediate roll.
2. Causes that will cause damage to the roll box of the cold rolling mill
In the whole process of actually operating the cold rolling mill, the roll box is often damaged. The occurrence of such a thing will seriously endanger the normal operation of all extruders, and many customers can’t find a solution at the first time when they encounter such a thing for the first time. Today’s WebEditor will explain it in detail to everyone.
The technical professional manufacturer of cold rolling mill always has a well-established expression that there are often many elements of damage to the roll box foundation of cold rolling mill, such as roll deviation, but the actual operating staff do not immediately detect and deal with it, which will cause the temperature of the work roll to rise continuously. In the absence of oil slick maintenance, serious friction will inevitably cause flames, Finally, the roll box of the cold rolling mill is damaged. However, the roll ring in the cold rolling mill will be seriously blocked due to water flushing, and the high temperature will increase the working pressure transmitted by the work roll to the oil slick. Therefore, this situation will cause the roll box of the cold rolling mill to be damaged.
In addition, if the product oil in the cold rolling mill is seriously polluted by the environment, there will be more residues or the oil temperature will not be manipulated, the roll box will also be damaged. Therefore, in addition to the points described in detail that will cause damage, The roller gap with load or the overload operation of the cold rolling mill cause poor performance. Therefore, a more reasonable way to deal with this situation is to immediately disassemble and replace the roller box of the cold rolling mill, but in the early stage, it is necessary to carry out the operation adjustment of low gear. Only when the whole temperature remains stable can the operation be carried out.
3. What is the key to the quality inspection of six high cold rolling mill?
The key to quality inspection of six high cold rolling mill is to carry out all-round inspection on the appearance, specification and characteristics of cold rolling mill. Among them, the key to the appearance of six high cold rolling mill is the two defects of plate shape and surface layer, while in terms of specification, the key is its length, total width and thickness.
4. On the six high cold rolling mill, if there is a problem with the gap between the seat bearing and the wear-resistant lining plate, or the product quality of the rolling bearing, what adverse effects will be caused? And, this kind of cold rolling mill, why does the work roll choose the positive and intermediate roll drive system?
In the six high cold rolling mill, if there is a problem with the gap between the seat bearing and the wear-resistant lining plate, or if there is a product quality problem with the rolling bearing, the cold rolling mill will not work normally, and the worse the cold rolling quality and actual effect. For the working roll, the positive and intermediate roll transmission system is selected, because it can select a smaller roll diameter, so as to reduce the reduction and improve the production and processing efficiency.