Process for cooling a continuously cast strand of metal during c

Details Process for cooling a continuously cast strand of metal during c Process for cooling a continuously cast strand of metal during c

1982-10-25

1984-09-25

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164128, B22D 11124

Patent

active

044731060

ABSTRACT:
A continuously cast strand or ingot of metal is cooled as it emerges from the mold by applying a coolant directly to the surface of the strand. In order to prevent distortion at the foot of the ingot due to too abrupt cooling, polymers of molecular weight 10.sup.4 -10.sup.8 are added to the coolant at least during the initial phase of casting. By the addition of polymers to the coolant the kinetics of formation and discharge of vapor bubbles as the coolant strikes the ingot surface are significantly altered due to the reduction in the surface tension of the coolant; as a result of this an insulating film of coolant vapor forms on the surface of the ingot thus reducing the heat flow from the ingot.

REFERENCES:
patent: 3397734 (1968-08-01), Brown
patent: 4166495 (1979-09-01), Yu

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