Title:
上向き溶接方法、及び上向き溶接構造
Document Type and Number:
Japanese Patent JP6786812
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the appearance of a welding bead by suppressing a drop down of molten metal at both ends in a lateral direction in upward welding.SOLUTION: An upward welding method enables one of steel materials and the other opposite in forward and rearward directions crossing vertical directions and lateral directions to be welded with each other in upward attitudes via a gap extending in the lateral direction crossing the vertical directions. This method has an end material arrangement step of a pair of end materials so as to face the gap from both sides in the lateral directions and a welding step of filling the gap with a molten weld metal from below the gap to weld the one steel material with other steel material. In the welding step, the weld metal is brought into contact with the end material.SELECTED DRAWING: Figure 4
Inventors:
Hideo Otsuka
Yoshiyuki Shirai
Yasumasa Suzui
Hidekatsu Asai
Yoshiyuki Shirai
Yasumasa Suzui
Hidekatsu Asai
Application Number:
JP2016025516A
Publication Date:
November 18, 2020
Filing Date:
February 15, 2016
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
B23K9/02; B23K9/00; B23K37/06; E04B1/24; E04B1/58
Domestic Patent References:
| JP2015077618A | ||||
| JP2005271066A | ||||
| JP2015042422A | ||||
| JP2001030094A |
Foreign References:
| US6161750 |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation