Mould protection slag has the following five major functions to benefit the billet production. 1. Reduce the heat loss of the molten steel Continuous casting protection slag must have good adiabatic thermal insulation properties, so that the continuous casting process can inhibit the formation of bridges and crusts in the mould, while increasing the…
Question: The causes of furnace lining damage? Answer: Impact from scrap and molten iron to the furnace lining and mechanical wear. Molten steel and slag stirring as well as gas scouring. Chemical erosion of the furnace lining by slag. Furnace lining temperature’s excitation cooling or heat change and structure change.…
The secondary cooling section of continuous casting process may influence the output of the casting machine and the quality of the cast billet. The high quality and high yield of continuous casting depends to a large extent on the intensity of the secondary cooling, cooling process, cooling water distribution and control.…
The magnet yoke is a yoke steel made of silicon steel sheet, which is evenly and symmetrically placed around the induction coil. Its function is to restrain the magnetic leakage of the induction coil from spreading outward, to improve the efficiency of induction heating, and to act as a magnetic shield to reduce the heat…
Calcium oxide also called burnt lime acts positive actions at steel-making process. Removal of hazardous elements S, P, Si, As Since oxides of sulfur, phosphorus, silicon and arsenic are usually some acidic substances, they are chemically combined with some alkaline substances to form relatively stable compounds. The lump calcium oxide…
The wire rods are main materials of various drawing steel products. Due to the special use of the material, the purity of the steel shall meet the standard. otherwise there is a possibility of fracture during the drawing process. For example, the production process of ? 5.5 wire rod of…
Austenitic stainless steel (201, 202, 301, 304, 316) is non-magnetic or weakly magnetic, martensitic or ferritic stainless steel (430, 420, 410) is magnetic. Most of the stainless steel usually used as decorative pipe plate is austenitic, generally speaking, is non-magnetic or weakly magnetic, due to smelting composition bias or improper…
Continuous casting electromagnetic stirringㄗbrief EMSㄘ technology refers to the electromagnetic metallurgy technology, which is used to improve the quality of continuous casting billets by installing different types of EMS at different locations of the CCM. The generated electromagnetic force to enhance the flow of the liquid, thus change the heat transfer condition during the solidification of…
Q: Why does the molten steel need to be deoxidized? A: If the molten steel is not deoxidized, the continuous casting billet will not have the correct solidification structure. High oxygen content in steel will also produce subcutaneous bubbles, loosening and other defects, and intensify the harmful effects of sulfur.…
In April 2022, the national producer price increased by 8.0% year-on-year and 0.6% month- on-month; the industrial producer purchase price increased by 10.8% year-on-year and 1.3% month-on-month. From January to April, producer prices rose by 8.5% over the same period last year, and the purchase price of industrial producers rose by 11.2%. HBIS group…
