First of all, for the roller itself, we should pay attention to the fact that it should be relatively rigid, under the heavy load, in terms of its bending deformation, in fact, it will not exceed the allowable value. In addition, in terms of the surface of the roller, we should pay attention to that it should have enough hardness, in general, it will reach HRC above 50 degrees.

Then, on the roller, on its own, in fact, it will have a strong corrosion resistance. In fact, the coating will have the ability to resist peeling, to ensure that the roller working surface has a better abrasion resistance and corrosion resistance.

In fact, the working surface of the roller is to pay attention to should be fine machining, so that, in a large extent, it is to ensure the size accuracy and roughness of the surface. In terms of its roughness, in fact, it should be above Ra0.16, and there should be no porosity or groove. In fact, the wall thickness of the working surface of the roller should be paid attention to maintain even, otherwise it will make the temperature of the roller surface appear uneven phenomenon, which will affect the quality of its products.

Roller material also is to should be to actually have good thermal conductivity, actually is also generally will use chilled cast iron, under special circumstances, we actually is also should pay attention to use cast steel or chrome molybdenum alloy steel, whether must carry on the heating or cooling, actually is also can achieve the goal of rapid cooling uniformity.

Later, in terms of roller maintenance, in fact, we should pay attention to should be regularly cleaning roller dust and a series of foreign matters; In terms of the second article, we should pay attention to the regular inspection of the drum shell and end cover welding is not firm; Next, we should pay attention to its lubrication is actually better, can reduce the loss of wear.