Method of continuous casting

Details Method of continuous casting Method of continuous casting

1996-11-12

1998-11-24

Ryan, Patrick

Metal founding

Process

Shaping liquid metal against a forming surface

164417, B22D 1112, B21B 146

Patent

active

058395024

ABSTRACT:
In a method of continuous casting for rolling down a cast strand at the final stage of solidification to reduce segregation and center porosity at the center of the casting as much as possible and in particular prevent spot-shaped segregation, the rolling down is started after the center solid phase ratio of the casting reaches 0.2 and the rolling down is executed so as to compensate the total amount of volume contraction by solidification and cooling of strand in the section of the rolling down until the center solid phase ratio reaches 0.9 and thereafter the rolling down in continuously executed by a rolling down gradient of 0.08%/m or more to 1.5%/m or less.

REFERENCES:
patent: 4687047 (1987-08-01), Ogibayashi
patent: 5634513 (1997-06-01), Ishiguro et al.

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