Process should be to select a different type of roll

Especially the mirror roll roller for plastic packaging industry is not prepared an indispensable part, whether it is rolling, extrusion molding or casting rolls are

inseparable. Production quality precision roller surface and internal flow channel structure is reasonable and precision is good or bad, will

Direct impact on the quality of plastic products, vertical conveyor especially for plastic film is even more so. Thus providing a high quality plastic sheet membrane for roll products

manufacturers particularly important.
A wide variety of rolls, and has its own unique role, according to a process of rolling stick, pressure bachelor, casting rolls, etc., according to functional use of a heating

roller, cooling roller, away Mine conveyors from the roller, roller, etc., according to Structure of a seamless roll, forging and centrifugal casting roll. In summary,

Plastic products, different processes require different roller, therefore, as a roller manufacturers to undertake the process of making the roller should be for different

products, different design and manufacturing process corresponding roller, the roller in order to ensure that the production process play its normal role.
Regardless of process methods, the roller structure, design, material selection and processing should comply with the following several basic requirements:
1. Roll should have sufficient rigidity to ensure the heavy load, the bending deformation does not exceed the allowable value.
2. Roller surface should be of sufficient hardness, generally required to reach HRC50 degrees, with strong corrosion resistance. Coating with anti-spalling capacity to ensure

that the work roll surface has good wear resistance and corrosion resistance.
3. Work roll surface should be fine processing, in order to ensure dimensional accuracy and surface roughness. Roughness should Ra0.16 above, can not have holes or grooves.

Roller working surface thickness should be uniform, otherwise it would roll surface temperature uniformity, affecting the quality of products.
4. Roller material should have good thermal conductivity, usually chilled cast iron, cast steel or special circumstances chrome molybdenum alloy steel, either heating or

cooling, can achieve rapid and uniform.
5. Roller designed to facilitate processing, low cost.