What causes the mesh belt of mesh belt furnace to harden about 40 days after heat treatment?

1. The material of the mesh belt does not match the operating temperature of the furnace, and the mesh belt is overheated, resulting in the deformation of the mesh wire. Second, carbon potential control should be adopted (the measured value of oxygen control head must be true and reliable), and under the condition of ensuring carbon potential, methanol dripping and gas enrichment should be reduced as much as possible, so that there is no or less carbon deposition on the surface of the mesh belt and the service life of the mesh belt is improved. If serious carbon deposition is found, the furnace should be cooled empty and air should be introduced to burn carbon with the furnace. If it is a long-term carburizing process, the service life is moderate, the service temperature is overtemperature, carbon deposition is serious (easily leading to local overtemperature) or the quality of mesh belt material is poor, some of it will break after three months.

Third, the treated product contains chemicals that cause the network to harden.