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publisher：BAOSHENG Mechanical
Speaking of roller, we actually call it the roller, which is widely used in rotary screen printing machine and its digital printer, for mine conveying equipment, paper making or packaging machinery and other different kinds of transmission and conveying system and sorting and conveying equipment. And then, in terms of the requirements of the roller, in terms of itself, we actually have to pay attention to should be enough rigid.
Then, the roller in fact is to pay attention to ensure that under the heavy load, bending deformation is not more than the allowable value. For its surface, that is to say, it should have enough hardness. In general, we will require it to reach HRC above 50 degrees, with relatively strong corrosion resistance. In terms of the coating itself, in fact, it will have the ability to resist peeling, that is, to ensure that the roller working surface has better wear resistance and corrosion resistance.
Roller in the production, for the working surface should be fine machining, so that it is to a large extent also can ensure the size accuracy and surface roughness. The roughness should be maintained above Ra0.16, and there should be no pores or grooves. The wall thickness of the working surface of the roller must be maintained evenly, otherwise, it will lead to uneven temperature of the roller surface, affecting the quality of products.
The material of the roller should have good thermal conductivity. Generally speaking, we should pay attention to the fact that it is made of cold cast iron. In special cases, it is made of cast steel or molybdenum chromium alloy steel.
After, in order to extend the service life of the roller itself, it is necessary to pay attention to the maintenance of the roller. Pay attention to clean up the dust and other foreign bodies on the roller regularly, then, we should pay attention to should be paid to check the roller shell and end cover welding place is firm, then, we actually also need to pay attention to observe its good lubrication, reduce the loss of wear itself.
