Recarburizer for ductile iron production
Usually after recarburizer to join, it is important to note the carburant and liquid iron to fully mix, be sure to avoid recarburizer floating in liquid iron surface burning situation of the become a ball, and then, if join will have to adopt the method of batch to join, to be in the process of recarburizer to join sufficient to stir, also want to control the rate of recarburizer to join, these are very important, In particular, we need to make the absorption rate of the recarburizer reach more than 95 percent, but also to ensure the stability of the adding speed of the recarburizer and the stirring speed of the recarburizer can not be too fast or too slow.
Also check the content of F.P.S and other elements of the recarburizer, to ensure the absorption rate of the recarburizer, if the content of the three elements is too high, will seriously affect the quality of liquid iron. But if the recarburizer adds Mn in molten iron to promote the absorption of C element in molten iron is very good. To do in the process of liquid iron production of carburant treatment should keep in mind the following criteria: desulfurization, and then carburization in the final silicon!
