Since there are many types of recarburizers on the market, although diversified recarburizers can satisfy the needs of a wide range of users, some users who are not very familiar with recarburizers often do not Know how to choose, for such a problem, we briefly introduce how to choose a suitable recarburizer; medium temperature asphalt
1. Use high-temperature graphitized recarburizers, such as graphite electrodes or graphitized oil coke. Because a good recarburizer has a high absorption rate and a fast dissolution rate, it is beneficial to reduce energy consumption and improve metallurgical quality. Choose sulfur, nitrogen and other recarburizers with low impurity elements.
2. Recarburizers with high sulfur content also have high nitrogen content. When the nitrogen content of gray iron liquid iron is higher than the equilibrium concentration, cracked nitrogen holes are prone to occur, while ductile iron liquid iron is prone to shrinkage defects and impurities in the thick wall part. When the content is high, the tendency of casting slag inclusion is added.
3. The raw material of the graphitized recarburizer after high temperature treatment is better. If it is not tested, it can feel by hand, visually, and can draw good marks on the paper.
The recarburizer is added to the metal smelting furnace, that is, castings that can be smelted from the worst scrap steel using high-quality recarburizers. Therefore, we should be cautious in the selection of recarburizers. If you still don't know which recarburizer to buy, please contact our factory, and a professional technical instructor will answer your questions and ensure that you can buy the recarburizer suitable for you.