Title:
アーク溶接構造部材の製造法
Document Type and Number:
Japanese Patent JP5372217
Kind Code:
B2
Abstract:
[Problem] To provide excellent liquid metal embrittlement cracking resistance to an arc-welded structural member using a Zn-Al-Mg based alloy coated steel plate member without restriction of the species of steel for a base steel for coating and without much increase in cost. [Solution to Problem] In a method for producing an arc-welded structural member containing a step of joining steel members by gas-shielded arc-welding to manufacture a welded structural member, at least one of the members to be joined is a hot dip Zn-Al-Mg based alloy coated steel plate member, and a shielding gas is a gas that is based on an Ar gas, a He gas or an Ar-He mixed gas and has a CO 2 concentration C CO2 (% by volume) satisfying the following expression (2) in relation to a welding heat input Q (J/cm):
Inventors:
Kazuaki Hosomi
Nobutoki Tomokazu
Hiroshi Asada
Nobutoki Tomokazu
Hiroshi Asada
Application Number:
JP2012134657A
Publication Date:
December 18, 2013
Filing Date:
June 14, 2012
Export Citation:
Assignee:
Nisshin Steel Co., Ltd.
International Classes:
B23K9/23; B23K9/16; B23K9/173; C22C18/04; C22C38/14; C22C38/00
Domestic Patent References:
| JP2011208264A | ||||
| JP2010221247A | ||||
| JP2004344904A | ||||
| JP2005000986A | ||||
| JP2004344905A | ||||
| JP2004090017A | ||||
| JP2009012027A |
Attorney, Agent or Firm:
Komatsu Taka
Kenji Wada
Kenji Wada