Abstract
The fluid transport characteristics and level fluctuations in the pool of twin roll strip casting were studied by physical simulation. The level profile depends on the transport characteristics of the flow in the pool. A 1∶1 water model of a twin roll strip caster was constructed based on the Froude number and Reynolds number similarity criteria to address the relationship between fluid flow and level fluctuations in the pool. The residence time of fluid in the pool and the nip points of the caster were measured to evaluate the uniformity in the caster in different operating conditions, and the level fluctuations and residence time were measured by wave gauge sensors and conductivity sensors respectively. The results show that free surface oscillations increase with the flowrate changing from 8·7 to 14·5 m3 h−1. Suitable outlet extension and outlet angle as well as holes in the bottom of the nozzle were beneficial to obtain a uniform distribution of the fluid along the direction of roll width at the pool zone.
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