A Flute Tungsten Carbide Corrugated Roller for JS Single Facer

High Hardness from Vertical Quenching Process

Intermediate frequency quenching can guarantee both the hardness and harden depth we need. Our harden layer depth can reach to 8-12mm. With harder base material as foundation, the lifetime of our corrugating rolls are greatly extended. After different heat treatment process, the corrugated roller surface becomes more wear-resistant and durable. Some manufacturers groove their lower rollers before the rollers’ were harden, because it is relatively easy to work with soft materials. By this could cause problems in the later heating process for the rollers, which will make the hardness of the rollers change. After heating treatment we cut slots of lower roll though this process needs more time but makes uniform hardness.

Store well

1. Store in dry places.The surface of corrugating rolls is not compact structure. The permeation and corrosion of water and steam will cause unusual falling off of coating.

2. Apply silicon oil. The silicon oil is valid for 3 months. If you don’t use corrugating rolls for a long time, silicon oil must be applied to the rolls regularly to avoid unusual falling off of coatings caused by the permeation and corrosion of water and steam.

3. Keep the surface clean. If you put the corrugating rolls in the warehouse, the surface should be cleaned and applied silicon for later use.