JPS5568184A - High current density gas shielded vertical welding method - Google Patents
High current density gas shielded vertical welding methodInfo
- Publication number
- JPS5568184A JPS5568184A JP13942678A JP13942678A JPS5568184A JP S5568184 A JPS5568184 A JP S5568184A JP 13942678 A JP13942678 A JP 13942678A JP 13942678 A JP13942678 A JP 13942678A JP S5568184 A JPS5568184 A JP S5568184A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- sectional area
- groove
- done
- iron powder
- 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 obtain the weld zone of superior low temperature toughness with high efficiency by performing welding under the specific conditions for the groove provided to thick steel materials such as double shell tanks or the like for LPG storage by the use of CO2 or Ar+CO2 and the use of a small-diameter composite wire of a limited sectional area combining flux and iron powder.
CONSTITUTION: The groove of the specified shape is made based on the quantity of welding heat input to steel materials of 6W38mm plate thicknesses such as of double shell tanks or the like for storing LPG of boiling points 0W50°C. Next, welding is done in 1W2 passes according to plate thicknesses to this groove, by using CO2 or Ar+CO2 as shielding gas and under the following conditions. Namely, welding is done at welding current densities 220W370A/mm2 and quantity of heat input 20W50KJ/cm by using the composite wire of 1.2W2mmϕ whose sectional area of the combined flux and iron powder occupies 30W35% based on the total sectional area of the wire.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13942678A JPS5568184A (en) | 1978-11-14 | 1978-11-14 | High current density gas shielded vertical welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13942678A JPS5568184A (en) | 1978-11-14 | 1978-11-14 | High current density gas shielded vertical welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5568184A true JPS5568184A (en) | 1980-05-22 |
Family
ID=15244917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13942678A Pending JPS5568184A (en) | 1978-11-14 | 1978-11-14 | High current density gas shielded vertical welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5568184A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169485A (en) * | 1989-11-30 | 1991-07-23 | Nippon Steel Corp | High current density welding method and flux-cored wire |
| CN103273174A (en) * | 2013-05-24 | 2013-09-04 | 武汉钢铁(集团)公司 | High-intensity nuclear-power steel thick plate gas shielded welding method |
-
1978
- 1978-11-14 JP JP13942678A patent/JPS5568184A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03169485A (en) * | 1989-11-30 | 1991-07-23 | Nippon Steel Corp | High current density welding method and flux-cored wire |
| CN103273174A (en) * | 2013-05-24 | 2013-09-04 | 武汉钢铁(集团)公司 | High-intensity nuclear-power steel thick plate gas shielded welding method |
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