Refractory is a non-metallic material with a fire resistance of no less than 1580 ℃, good resistance to thermal shock and chemical attack
Superheat temperature of molten iron: the large amount of absorption of carburizing agent is generally above 1420 degrees, so the superheat temperature of molten iron can not be too low
A good graphitization carburizer should also have the characteristics of high carbon, fast decomposition speed and high absorption rate
There are many kinds of carburizers according to the materials used: metallurgical coke carburizers, calcined coal carburizers, composite materials carburizers
High quality castings: high quality carburizers, such as graphitization carburizers and graphite electrode carburizers, are used to produce ductile iron castings.
The composition of the carburizer should be distinguished by the nitrogen content. What level of nitrogen content you choose is very important
Silicon in molten iron has a great influence on the effect of carburization. The molten iron with high silicon content has poor carburization.
(1) The self quality of the carburizing agent. (2) Generally speaking, the lower the carbon content of the molten iron, the higher the absorption rate of the carburizer. When the WC of the molten iron is above 3.6%, it is difficult for the carbon to rise again. (3) The silicon content in molten iron: the …
Flake graphite is widely used in refractory materials and coatings in metallurgical industry. Such as magnesia carbon bricks and crucibles. It is a desulfurizing accelerator for the refining industry
Flake graphite has complete crystal, thin flake, good toughness, excellent physical and chemical properties, good thermal conductivity, conductivity, thermal shock resistance, corrosion resistance, etc.