Usage method for extending the service life of heat-resistant steel castings
 

Our company specializes in producing various equipment accessories such as heat-resistant steel castings, furnace rollers, radiation tubes, industrial furnaces, etc.
Once these equipment is worn or damaged, it will seriously affect the progress of industry. Therefore, it is necessary to use them correctly and learn how to extend the service life of heat-resistant steel castings.
 

1. The accessories of the carburizing furnace need to undergo a high temperature tempering before use, with a temperature controlled above 950 ℃, insulation for 1-2 hours, and cooling with the furnace, mainly to eliminate internal stress during the casting process.

2. Box type furnace, trolley resistance furnace bottom plate, and heat-resistant steel furnace plate undergo a high-temperature tempering before use, with a temperature controlled at 950 ℃ or above and insulation for 1-2 hours.
They are cooled with the furnace to mainly eliminate internal stress during the casting process. During use, the furnace plate should ensure that the workpiece is evenly placed and cannot be stacked in a local position,
which may cause uneven heat dissipation during the heating process, It is easy to cause deformation and cracking of the furnace plate, to prevent the short circuit of the resistance wire caused by the oxide skin from penetrating the furnace bottom plate.

3. Slings and baskets

When using lifting appliances and material baskets, the material should be ZG40Gr25Ni20 welding rod. This brand has good creep performance during the quenching process and will not cause serious deformation
and cracking of the lifting appliances and material baskets. Before use, a high-temperature tempering should be carried out, with the temperature controlled at 950 degrees Celsius or above, and the insulation
should be kept for 1-2 hours. It should be cooled with the furnace, mainly to eliminate internal stress during the casting process and increase the service life of the product.
 

These are just some precautions for using related equipment. Only by mastering some usage skills and paying attention to maintenance can the service life of heat-resistant steel castings be extended and work efficiency be improved.