JPS55133882A - Preventing method for bubble defect of horizontal position submerged arc welding - Google Patents
Preventing method for bubble defect of horizontal position submerged arc weldingInfo
- Publication number
- JPS55133882A JPS55133882A JP4031579A JP4031579A JPS55133882A JP S55133882 A JPS55133882 A JP S55133882A JP 4031579 A JP4031579 A JP 4031579A JP 4031579 A JP4031579 A JP 4031579A JP S55133882 A JPS55133882 A JP S55133882A
- Authority
- JP
- Japan
- Prior art keywords
- root
- pass
- welding
- cut groove
- horizontal position
- 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
- Arc Welding In General (AREA)
Abstract
PURPOSE: To prevent the production of blow holes, pits, etc. at the root pass welding by providing a cut groove for gas venting at the root edge part of the upper stage welding work and performing root-pass welding then performing back chipping and the root-pass welding on the back side thereby burying the cut groove.
CONSTITUTION: A cut groove 5 for gas venting continuous in the weld line direction is machined from the outer side root edge of the upper stage side welding work 1 to part of the root face. Thence, the root-pass welding of the outer side is done to form root-pass beads 6. Following to this, back chipping is done from the inner side, after which the inner side is root-pass-welded, whereby the root-pass beads 7 are formed. According to this method, the gas generated at the time of the root- pass welding escapes to the outside by passing through the cut groove 5 and therefore the bubble defects such as blow holes and pits of the weld zone decrease. Since the cut groove 5 annihilates after the welding, the decrease in the strength of the joint part does not occur.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4031579A JPS55133882A (en) | 1979-04-05 | 1979-04-05 | Preventing method for bubble defect of horizontal position submerged arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4031579A JPS55133882A (en) | 1979-04-05 | 1979-04-05 | Preventing method for bubble defect of horizontal position submerged arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55133882A true JPS55133882A (en) | 1980-10-18 |
Family
ID=12577174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4031579A Pending JPS55133882A (en) | 1979-04-05 | 1979-04-05 | Preventing method for bubble defect of horizontal position submerged arc welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55133882A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012189367A (en) * | 2011-03-09 | 2012-10-04 | Ihi Corp | Method for detecting defect in welded portion |
| CN104923893A (en) * | 2015-06-25 | 2015-09-23 | 江苏省沙钢钢铁研究院有限公司 | K-shaped groove submerged-arc welding technology for good shape of welded plate |
| CN105196005A (en) * | 2015-10-28 | 2015-12-30 | 上海振华重工机械配套有限公司 | Equalizing beam longitudinal joint back chipping-free full penetration submerged-arc welding forming process |
-
1979
- 1979-04-05 JP JP4031579A patent/JPS55133882A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012189367A (en) * | 2011-03-09 | 2012-10-04 | Ihi Corp | Method for detecting defect in welded portion |
| CN104923893A (en) * | 2015-06-25 | 2015-09-23 | 江苏省沙钢钢铁研究院有限公司 | K-shaped groove submerged-arc welding technology for good shape of welded plate |
| CN104923893B (en) * | 2015-06-25 | 2017-04-19 | 江苏省沙钢钢铁研究院有限公司 | K-shaped groove submerged-arc welding technology for good shape of welded plate |
| CN105196005A (en) * | 2015-10-28 | 2015-12-30 | 上海振华重工机械配套有限公司 | Equalizing beam longitudinal joint back chipping-free full penetration submerged-arc welding forming process |
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