Title:
MANUFACTURE OF WELD H-SHAPE STEEL
Document Type and Number:
Japanese Patent JP2002086277
Kind Code:
A
Abstract:
To provide a manufacturing method for a weld H-shape steel, by which the bend of a product can be prevented.
In the manufacturing method for the weld H-shape steel forming a H-shape steel by the high-frequency welding of a web material to a pair of upper and lower flange materials, just after the high-frequency welding, the H-shape steel is forcedly cooled, the temperature of the flange is lowered to 50°C or below, and differences in temperature of the upper and lower and the left and right is to be 10°C or below.
Inventors:
MAKI YOSHIAKI
Application Number:
JP2000274582A
Publication Date:
March 26, 2002
Filing Date:
September 11, 2000
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
B21C37/00; B23K13/04; B23K31/00; (IPC1-7): B23K13/04; B21C37/00
Attorney, Agent or Firm:
Eiichi Kobayashi
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