JPS5492537A - Working method for downhand butt welding for bottom plate of tank - Google Patents
Working method for downhand butt welding for bottom plate of tankInfo
- Publication number
- JPS5492537A JPS5492537A JP16054877A JP16054877A JPS5492537A JP S5492537 A JPS5492537 A JP S5492537A JP 16054877 A JP16054877 A JP 16054877A JP 16054877 A JP16054877 A JP 16054877A JP S5492537 A JPS5492537 A JP S5492537A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- tank
- bottom plate
- arc welding
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To prevent such defects of welded material as the angular deformation, bad beads, etc., on purpose to contrive to improve the working efficiency, by first welding according to the arc welding with covered electrode, in the butt welding work, and next, by submerged arc welding spreading the out wire, etc., in the groove.
CONSTITUTION: One pass or more of seal welding according to the arc welding with covered electrode is previously worked on the corner portion formed by butting the bottom plate of tank and the backing metal, on purpose to form the fillet portion with the deposited metal; hereby, such defects as bad shape of beads, etc., caused by the gap between the bottom plate of tank and the backing metal, is removed. Next, the cut wire or the filler metal like as iron powder, etc., containing the same or similar constituents as the welding wire is spread into the groove formed by butting bottom plates of tank each other; and then, the submerged arc welding is performed. According to this method, the welding heat input is perfectly, effectively utilized for forming the deposited metal, so that much more molten metal can be obtained, and the beads can be formed satisfactorily to the surface of bottom plate of tank with only one layer due to the submerged arc welding, and the working time of welding is also greatly shortened.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16054877A JPS5492537A (en) | 1977-12-28 | 1977-12-28 | Working method for downhand butt welding for bottom plate of tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16054877A JPS5492537A (en) | 1977-12-28 | 1977-12-28 | Working method for downhand butt welding for bottom plate of tank |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5492537A true JPS5492537A (en) | 1979-07-21 |
Family
ID=15717360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16054877A Pending JPS5492537A (en) | 1977-12-28 | 1977-12-28 | Working method for downhand butt welding for bottom plate of tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5492537A (en) |
-
1977
- 1977-12-28 JP JP16054877A patent/JPS5492537A/en active Pending
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