Title:
COATED STEEL STRIP FOR BENDING FLANGE AND METHOD FOR BENDING FLANGE OF COATED STEEL STRIP
Document Type and Number:
Japanese Patent JP2004291397
Kind Code:
A
Abstract:
To provide a coated steel strip which prevents the occurrence of enamel hairs on an end surface when flange bending processing is applied to the end part of a coated steel strip subjected to shearing processing and a method for bending the flange.
When the end part of the coated steel strip held between a die and a strip holder is subjected to slide bending processing by pressing the end part protruding from the end part of the die from above by a punch, as a coated steel strip to be processed, a coating film whose average thickness is equal to or below one-half of the ten-point average roughness (Rz) of the surface is formed on the surface of the steel strip.
Inventors:
NAKAMURA TAKAFUMI
ISHIKAWA HANJI
TAKAHASHI SUETSUGU
ISHIKAWA HANJI
TAKAHASHI SUETSUGU
Application Number:
JP2003087035A
Publication Date:
October 21, 2004
Filing Date:
March 27, 2003
Export Citation:
Assignee:
NISSHIN STEEL CO LTD
International Classes:
B05D7/14; B21D5/04; B21D19/08; B32B15/08; (IPC1-7): B32B15/08; B05D7/14; B21D5/04; B21D19/08
Attorney, Agent or Firm:
Wataru Ogura
Okada Manri
Okada Manri
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