Study of Slab Quality on Unsteady Casting Conditions and Liquid Steel Behavior in Mold;

The EMBR can be used to control the molten steel flow, to reduce the entrapment of mould powder, to eliminate nonmetallic inclusions in the mould, and hence to improve the slab quality and increase the casting speed.

The present paper reviews the development of the magnetic stirring technology and its various patterns and their roles, and analyzes the effects of this technology on improvement of the slab quality and foresees the prospect of development of this technology.

This paper analyzes measures for controlling strand quality after cross-section adjustment of the No.

Having functions of purification, solidification, heat exchange and chemical reaction, continuous casting mold is the important chain of strand quality control and the key part influe.

The friction compensation model is adopted, to correct the non-sinusoidal oscillation curve, achieve meniscus shape optimizing, and improve strand quality.

The latter has advantages of portable and simple configuration,installing and replacing conveniently,long applying-life,effectively improving billet quality,reducing cost and obviously increasing production efficiency of horizontal continuous caster.

The key factor of the caster on effect the billet quality are dealt with,main schemes included:rebuild the mold,add M-EMS,design the arc radius,casting speed,tundish,protective casting in whole process and so on,the best technology parameters are obtained by designing and calculating.

The effect of stirring intensity and twist moment of mould electromagnetic stirrer(M-EMS) on continuous casting bloom quality was investigated.

Measures to control the quality of slab such as the control of stability of liquid steel surface in mold,oscillation and the marks of oscillation as well as the control of liquid steel flow were also presented.

Automatic control system of tundish and mould and quality of billet;