Tundish into the mold quench into the slab and pulled out, viscosity and relative motion of the slab and mold interface generated by the frictional resistance of the upper and lower mold in stainless steel casting process, vibration and protection and basic slag filling in the slab and mold intramural continuous lubrication to overcome. Mold powder surface of molten steel heated to melt the formation of liquid slag paste slag, sintered slag and four-layer structure of the original fluxes. In the mold oscillation under the action of slag film formed between the mold wall and the slab surface. Formed in the side of the contact with the mold wall thickness of 1 ~ 3mm solid slag film, and in contact with the slab surface side of the formation of liquid slag film thickness of 0.1 ~ 0 World pipe network reported that the world's steel pipe network to provide the world's steel pipe network editor .3mm. Solid slag film with mold oscillation World Steel Pipe News , the liquid slag film with the slab next to the mold bottom half of solidification, with the slab from the mold caused by mold flux consumption.
Mold is generally sinusoidal vibration, up and down cycle of vibration of the mold to create the conditions to overcome the slab resistance, but at the same time it moves down to the slab surface to produce a certain the depth of oscillation marks. Deeper oscillation marks the next heating process can not generate all the oxide left in the finished surface after hot rolling, become defective products. The stainless steel continuous casting and continuous casting process are reflected in reducing the depth of oscillation marks. In order to make stainless steel oscillation mark depth ≤ 0.2mm, should be based on steel mixed with steel to determine the different vibration process and vibrational frequencies. Easy breakout 1Cr13 chromium stainless steel should be boosted by Cheng, low vibration frequency of the process; for thermoplastic good austenitic stainless steel using little vibration Cheng Gaozhen. Frequency technology. To take and the vibration parameters determined by the consumption of protective slag.