JPS56144864A - Welding method of square joint - Google Patents
Welding method of square jointInfo
- Publication number
- JPS56144864A JPS56144864A JP4845280A JP4845280A JPS56144864A JP S56144864 A JPS56144864 A JP S56144864A JP 4845280 A JP4845280 A JP 4845280A JP 4845280 A JP4845280 A JP 4845280A JP S56144864 A JPS56144864 A JP S56144864A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- groove
- welding
- heat input
- root face
- 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 reduce the number of passes, improve efficiency and prevent the occurrence of high temperature cracking and internal defects by welding the specific groove having a root face with multiple electrodes at large current and large heat input.
CONSTITUTION: A square joint part is subjected to edge preparation of a V- or Y shape satisfying 25W55° groove angles, is provided with a root face ranging 1W 10mm, and is welded at large current and large heat input by using ≥2 pieces of electrodes. The groove having this root face can be filled sufficiently with a small amount of deposited metal because of a small sectional area of the groove and this improves welding efficiency. The amount of deposited metal can be easily increased by the multiple-electrode welding and welding efficiency is markedly enhanced. In addition, high-temp. cracking is effectively prevented by so setting the distance between the electrodes that the heat input by the 2nd electrode is applied before the molten metal formed by the 1st electrodes solidifies sufficiently.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4845280A JPS56144864A (en) | 1980-04-11 | 1980-04-11 | Welding method of square joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4845280A JPS56144864A (en) | 1980-04-11 | 1980-04-11 | Welding method of square joint |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56144864A true JPS56144864A (en) | 1981-11-11 |
Family
ID=12803734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4845280A Pending JPS56144864A (en) | 1980-04-11 | 1980-04-11 | Welding method of square joint |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56144864A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008261502A (en) * | 2008-07-18 | 2008-10-30 | Kawasaki Precision Machinery Ltd | Seat block and valve device |
US8752807B2 (en) | 2005-03-10 | 2014-06-17 | Kawasaki Jukogyo Kabushiki Kaisha | Seat block and valve device |
-
1980
- 1980-04-11 JP JP4845280A patent/JPS56144864A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8752807B2 (en) | 2005-03-10 | 2014-06-17 | Kawasaki Jukogyo Kabushiki Kaisha | Seat block and valve device |
JP2008261502A (en) * | 2008-07-18 | 2008-10-30 | Kawasaki Precision Machinery Ltd | Seat block and valve device |
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