Title:
METHOD FOR INSPECTING ARC WELD ZONE
Document Type and Number:
Japanese Patent JP01150475
Kind Code:
A
Abstract:
PURPOSE: To prevent weld cracking by using a wire contg. C, Si, Mn, Al, Ti, Zr, Ni, and Mo when shielded arc welding is carried out with the use of gaseous Ar, N2, and CO2, and visually inspecting the weld zone after welding.
CONSTITUTION: Shielded arc welding is carried out with the use of Ar, N2, Ar-N2, or a gas obtained by mixing ≤50% CO2 into one kind among the above- mentioned gases. A wire contg. ≤0.15% C, 0.30W1.0% Si, 0.8W2.00% Mn, ≤0.030% P, ≤0.030% S, 0.5W2.00% Al, ≤1.0% Ti and/or Zr, and 0.50W2.50% Ni and/or Mo is used in the welding, and a weld zone 3 is visually inspected after welding. By this method, weld cracking is prevented, and a satisfactory product is obtained.
Inventors:
Amasaka, Tadao
Takeuchi, Hirokimi
Hiyamizu, Takao
Takeuchi, Hirokimi
Hiyamizu, Takao
Application Number:
JP1987000309246
Publication Date:
June 13, 1989
Filing Date:
December 07, 1987
Export Citation:
Assignee:
TOYOTA MOTOR CORP
DAIDO STEEL CO LTD
DAIDO STEEL CO LTD
International Classes:
G01N21/84; B23K9/16; B23K9/173; B23K31/00; B23K35/30; (IPC1-7): B23K9/16; B23K31/00; B23K35/30; G01N21/84
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