Titanium is an element with an atomic number of 22 in the periodic table, a subgroup element of the fourth period, which includes zirconium and hafnium in addition to titanium, and is characterized by a high melting point and a stable oxide film on its surface at room temperature. Characteristics…
Duplex stainless steel (Duplex Stainless Steel, referred to as DSS), refers to the ferritic and austenitic each accounted for about 50%, generally the content of the lesser phase of the stainless steel needs to reach a minimum of 30%. 2205 stainless steel (S32205) due to the austenitic stainless steel compared…
The process that continuous casting process produces alloy steel billets can improve the yield of alloy steel and reduce the loss of alloy elements ( some alloys contain precious metal elements). Therefore, less cutting head can reduce the production cost, and because the quality of the casting billet produced by…
The tundish as a key device in the meltshop has some actual problems especially in billet continuous casting process as follows: (1) The inner cavity shape of tundish is unreasonable. The shape of the inner cavity influences the flow of molten steel in the tundish the residence time is short,…
Key words: High-efficiency, fine slag, crushing equipment,slag The complex structure of steel slag is a combination of slag and iron, which are intermingled with each other. Under the premise of ensuring the grade of magnetically selected slag steel (slag steel particles), steel slag is crushed to 75mm after magnetic separation,…
1.Nuclear service stainless steel Nuclear service stainless steel is used in nuclear power plants and contains a large number of radioactive substances in contact with the core coolant austenitic stainless steel. Because of the high dose of neutron irradiation, so the nuclear service stainless steel has the bottom of the…
Keywords: tundish; electromagnetic induction heating; The tundish, as an important convergence point of steelmaking from intermittent operation to continuous operation, plays a very important role in process compliance, steel purification and improvement of billet quality. In recent years, the practice of continuous casting technology development also shows that the constant…
Support rolls refer to the rolls that can increase the rigidity of the work rolls and directly or indirectly bear the rolling load, which is an important part to prevent the work rolls from flexural deformation and affect the quality of plate shape. Support roll body to withstand a lot…
A new type of tundish adopts a double shell inclusion and cover with vacuum insulation function, and is supplemented by anti-oxidation coating heat insulation technology and permanent layer castable with low thermal conductivity. The original intention of its research and development is to use the principle of vacuum insulation to…
Many cracks on the wire surface are caused by the transverse and longitudinal cracks of billets and rolling process, that can reduce the generation of cracks on wire rod surface through the control the quality of raw materials and proper rolling operation procedure. 1 Billet surface longitudinal cracks, transverse cracks…
