A steelmaking process that smelts metals and other materials using arc heat effects. Three-phase AC arc furnaces for steelmaking are the most common direct heating electric arc furnaces. In the steelmaking process, since there is no flammable gas in the furnace, oxidizing or reducing atmospheres and conditions can be formed according to the process requirements, so it can be used for smelting high...

A converter steelmaking method in which molten iron is blown into steel from the top of a converter with pure oxygen, or LD method; in the United States, it is generally called BOF method, also called BOP method. It is the main method of modern steelmaking. The furnace is an upright, dome-shaped container that is inserted into the furnace from the top with an upright water-cooled lance to supply o...

The invention relates to a steelmaking method which does not require an external heating source and mainly uses liquid pig iron as a raw material. Its main feature is that the physical heat of the liquid pig iron in the converter and the components in the pig iron, such as carbon, manganese, silicon, phosphorus and the like, are generated by the chemical reaction of oxygen sent into the furnace as...

Thermal Deformation and Cold Deformation Behavior of Advanced Ultra-Supercritical Boiler Material 617B at 700 °C (A-USC) Coal-based thermal power generation dominates China's power production. At present, the steam temperature of thermal power boilers is about 600 °C (u...

1. With same chemical composition, the average melting temperature of pre-melted refining slag is evidently lower than that of sintered refining slag, normally around 40℃.2. Pre-melted refining slag is with even composition, good fluidity when melted, better metallurgical effect such as deoxidization, desulfurization and impurity absorption than sintered refining slag, faster desulfurization rate ...

EF+LF+VD+INGOT+ESR+HEAT+FORGED to BILLET+HEAT+METAL FORMING+HEAT TREATMENT+UT+CUT

The materials with ESR are of higher purity,less sulfur,less nonmetallic inclusion,uniformer microstructure and chemical compositions.

ESR:Electroslag RemeltingVAD:Vacuum Arc DegassingVIM:Vacuum Induction FurnaceVAR: Vacuum Arc Remelting

EF:Medium Frequency FurnaceEAF:Electric Arc FurnaceBOF:Basic Oxygen FurnaceLF:Ladle RefiningVD:Vacuum Degassing

H13 die steel is one of the most widely used hot die steels at home and abroad.The commonly used smelting methods for domestic H13 steel include electric furnace smelting + electroslag remelting and electric furnace smelting + vacuum refining outside the furnace. Electroslag smelting plays an important role in controlling the cleanliness and homogeneity of H13 steel and is an important step in the...

The traditional smelting mostly uses die-casting blanks and provides the rolled blanks in the form of “die-casting-starting/forging and blanking”. Except for a few high-alloy steels that are difficult to be deformed and have high compression ratio, continuous casting blanks are used. Its characteristics are as follows:1 Using refining systems, many new control technologies have been introduced, su...