JPS5495943A - Fillet welding method for preventing skin-layer-fall-off- cracking of steel plate - Google Patents
Fillet welding method for preventing skin-layer-fall-off- cracking of steel plateInfo
- Publication number
- JPS5495943A JPS5495943A JP177778A JP177778A JPS5495943A JP S5495943 A JPS5495943 A JP S5495943A JP 177778 A JP177778 A JP 177778A JP 177778 A JP177778 A JP 177778A JP S5495943 A JPS5495943 A JP S5495943A
- Authority
- JP
- Japan
- Prior art keywords
- fall
- steel plate
- welding
- cracking
- under
- 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 the skin-layer-fall-off-cracking due to the welding work in the case of fillet welding of steel plate, by carrying out the flaw inspection along the weld line at ungrooved side under a specific condition, and then, by applying the local buttering welding to the place where exists fine interpositions.
CONSTITUTION: The flaw inspection along the weld line at the ungrooved side of the steel plate is carried out using a probe of above 6MHz frequency and of under 10mm diameter, being provided with the delay line, and a flaw detector for oscillatomg a sharp pulse in which the product of the rise-up time and the number of pulse wave is under 25 × 10-8 seconds; hereby, fine interpositions 8 existing in the depth 0.8W8mm directly under the surface are detected. After locally applying the buttering welding only to this flaw detecting place, the fillet welding is performed. According to this method, the fall-off-cracking of the skin layer can be perfectly prevented, and the defectless weld zone passing the ultrasonic test can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP177778A JPS5495943A (en) | 1978-01-11 | 1978-01-11 | Fillet welding method for preventing skin-layer-fall-off- cracking of steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP177778A JPS5495943A (en) | 1978-01-11 | 1978-01-11 | Fillet welding method for preventing skin-layer-fall-off- cracking of steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5495943A true JPS5495943A (en) | 1979-07-28 |
Family
ID=11510999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP177778A Pending JPS5495943A (en) | 1978-01-11 | 1978-01-11 | Fillet welding method for preventing skin-layer-fall-off- cracking of steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5495943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6250077A (en) * | 1985-08-30 | 1987-03-04 | Babcock Hitachi Kk | Fillet welding method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5123382A (en) * | 1974-08-16 | 1976-02-24 | Teijin Ltd |
-
1978
- 1978-01-11 JP JP177778A patent/JPS5495943A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5123382A (en) * | 1974-08-16 | 1976-02-24 | Teijin Ltd |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6250077A (en) * | 1985-08-30 | 1987-03-04 | Babcock Hitachi Kk | Fillet welding method |
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