Method for continuously casting a steel beam blank

Details Method for continuously casting a steel beam blank Method for continuously casting a steel beam blank

2005-04-26

2005-04-26

Kerns, Kevin P. (Department: 1725)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S459000, C164S486000

Reexamination Certificate

active

06883584

ABSTRACT:
A method for producing a steel beam blank includes continuously casting a steel beam blank strand and cooling the steel beam blank strand in a secondary cooling zone. The steel beam blank strand is guided in a vertical casting plane along a curved path having its web perpendicular to the vertical casting plane, so that each of the lateral flanges has an intrados flange tip and an extrados flange tip. The method further includes straightening the steel beam blank strand behind the secondary cooling zone. When being straightened, the intrados flange tips are selectively reheated between the secondary cooling and the straightening of the steel beam blank strand via an external energy supply focused on the intrados flange tips. In this manner, transverse cracks in the intrados flange tips may be reliably avoided.

REFERENCES:
patent: 4805685 (1989-02-01), Lorento
patent: 5247988 (1993-09-01), Kurzinski
patent: 5630467 (1997-05-01), Yoshimura et al.
patent: 10263752 (1998-06-01), None

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