Advantages of unshaped lining for ladles Description： At present, the working linings used in ladles, especially the slag line parts, are mostly made of carbon-containing refractory materials. Before the newly built ladle is put into the molten steel for use, it must be baked in advance in the order of small fire, medium fire to…
Advantages of unshaped lining for ladles Description： Magnesia-carbon brick (MgO-C) has been used as the inner lining of ladle refractory materials for many years. In the 1980s, Japan developed a magnesium-aluminum spinel castable with prefabricated spinels for use in ladles. In the 1990s, in situ spinel composition was formed in the second-generation lining with fine…
Round steel product defects, hot rolling technology Description： For round steel used for cold heading, scratches are one of the defects that are not allowed to appear. During the cold heading process, the surface damage and stress concentration caused by scratches will directly cause the cold heading to crack and cause waste. Keyword： Features；Reasons；Elimination method；Causes…
Causes and solutions of cold rolling seam print defects, cold rolling technology Description： The imprint defect is a defect that will appear after the production of various cold rolling processes. What are the reasons for this defect? Each process of cold rolling will produce stubbing defects. The closer the unit is to the finished product…