In order to truly improve the service life of high-temperature resistant casting products and reduce the production cost of manufacturers, it should be used in different ways in combination with different regions and different operating environments. On the other hand, the correct use of high temperature resistant casting products can also help to realize their value.
When high-temperature resistant casting products are used as box-type and trolley-type resistance furnace plates, high-temperature tempering should be performed before that, and the temperature should be controlled above 950 degrees and kept for 1-2 hours. The first thing to do is to The intention is to eliminate the internal stress in the casting process.
In the process of using high-temperature casting products, ensure that the workpieces are placed uniformly, and the work cannot be stacked in a certain part position. This will cause the furnace plate to be uneven in the heat dissipation process during the heating process, which will simply cause product deformation and cracking. Service life.
However, if the high temperature resistant casting products are used as various types of baskets, the workpieces must be evenly placed, and the weight cannot exceed the extra large carrying capacity of the basket design. The raw material should be ZG40Gr25Ni20 electrode. The main reason is that the trademark has good creep performance during the quenching process and will not cause deformation and cracking of high temperature resistant casting products.
If it is due to improper operation that the high temperature resistant casting product exhibits partial cracks during use, it can be corrected by repair welding. Other types of high temperature resistant castings should also be carried out in strict accordance with the strict method during use.