What is finished with steel?

Lippapped steel is one of the four types of steel deoxidized during production to give different physical properties in the finished product. These properties include chemical uniformity and lack of gas porosity, especially on the surface. The steel limitation process consists of physical closure or mold limitation after casting. This causes the surface of the molten steel to solidify first into a layer with a relatively high iron content and a minimum of gas -pissed defects. Thanks to a good surface and mechanical properties of limited steel, it is ideal for making sheets and belts products. These include steels with excellent chemical homogeneity, controlled dirt segregation and the exclusion of gas view with the resulting improvement in surface quality. Four basic forms of deoxidized steel in the descending order of oxygening are killed, semi -semi -and limited and lined steel. The oxygen removal process involves adding deoxidization substances such as aluminum, manganese and Ferrosilicone during the casting process.

This steel variant has a slight removal of oxygen. This results in a finished ingot with a homogeneous composition, reduced dirt segregation and a thick cap or top layer with an excellent uniform surface. The limitation process begins as a standard deoxidization with a reduced amount of deoxidization agents added to the melt during casting. This begins to deoxidize and initiates the elements segregation. This segregation process sees that carbon, sulfur and phosphor migrate to the center of Ingot with the formation of the "edge" of the relatively high iron content on the outside of the ingot.

Before complete stiffness of the molten metal, the cap or covered on a mold that accelerates the solidification of the melt adjacent to the lid. The result is an ingot steel with a high iron content and low poroset gas around the sides and bottom and a thick layer of similar properties at the top. With the exception of limitation and reduced deoxidization agent, it is the same basic process used toMarginal steel production. The end product also varies in a reduced rim thickness and a significantly increased thickness and quality of the upper layer.

Sick steel is effective in processes requiring high -quality surfaces. The excellent surface of the limited steel has a special value in the processes of work processes where it is difficult to eliminate gas imperfections on the surface of the steel. These processes include cold drawing of sheet metal and belt steel. Speakeped steel is generally less hard as semi -fought or killed steels and is not so clean; However, this does not affect the items produced.