Research on technology of raising casting speed of conventional slab of oriented silicon steel
Oriented silicon steel is known as"art"in iron and steel materials for the reason of complex production process and strict manufacturing technology.In order to improve the casting speed of conventional slab of oriented silicon steel and improve the profit level of enterprises,the solidification end test and the bulging behavior of casting slab under different casting speeds were carried out,and the following results could be drawn.At the casting speeds of 0.9 and 1.0 m/min,the solidification end of oriented silicon steel slab is located in first 7 sections,while at high casting speed of,the solidification end is in the 8th section.When the casting speed is increased from 0.9 to 1.1 m/min,the thickness of the billet shell decreases.Under the same static pressure,the bulge volume and bulge deformation rate increase,with the maximum bulge deformation rate of 0.107％.When the casting speed increases by 0.1 m/min,the bulge volume of the billet at the same position increases by about 3.7％-16.6％.Combining the experimental study of liquid level fluctuation of mold,bulging behavior of billet and solidification end position,the casting speed of conventional slab of oriented silicon steel can be increased from 0.9 to 1.1 m/min.
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