Process for manufacturing butt-welded steel pipe

Details Process for manufacturing butt-welded steel pipe Process for manufacturing butt-welded steel pipe

1977-12-01

1979-02-13

Smith, Al Lawrence

Metal fusion bonding

Process

With condition responsive, program, or timing control

228147, B23K 3106

Patent

active

041391390

ABSTRACT:
In a butt-welded steel pipe manufacturing equipment, an edge portion temperature and a center portion temperature of a steel strip are detected at a location between the outlet of a heating furnace and the inlet of a butt-welding mill. The heating condition of the steel strip in the heating furnace is controlled in accordance with the difference between the edge portion temperature and a target edge portion temperature, and the transporting speed of the steel strip is controlled in accordance with the difference between the edge portion temperature and the center portion temperature and with the difference between the target edge portion temperature and a target center portion temperature.

REFERENCES:
patent: 3145676 (1964-08-01), Caplan
patent: 3409198 (1968-11-01), Peterman, Sr.

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