JPS56139297A - Backside inert gas shielding device and shielding method when stainless steel series pipings are welded - Google Patents
Backside inert gas shielding device and shielding method when stainless steel series pipings are weldedInfo
- Publication number
- JPS56139297A JPS56139297A JP4201980A JP4201980A JPS56139297A JP S56139297 A JPS56139297 A JP S56139297A JP 4201980 A JP4201980 A JP 4201980A JP 4201980 A JP4201980 A JP 4201980A JP S56139297 A JPS56139297 A JP S56139297A
- Authority
- JP
- Japan
- Prior art keywords
- cup
- gas
- pipe
- welded
- beveling
- 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)
- Arc Welding Control (AREA)
Abstract
PURPOSE: To economize the backside shielding gas in the butt welding of pipes, by rotating a gas discharging cup in the pipe along the direct below of a beveling clearance, or by installing a paper made barrier in both pipes to intercept the gas from the clearance of beveling, etc.
CONSTITUTION: (1) Central block K of the titled device is fixed to P1 among pipes P1 and P2 to be welded, and pipe P2 is placed to the proper location and joint J is tack welded on it. Then, discharging cup 57 at the tip of square pillar fixed to rotating block 35 is brought to the welding starting point, and the welding is performed with torch 1 and filler metal bar 2 while a gas is blown through the cup. Motor 38 is rotated in the direction where the difference of infrared rays received by photoelectric tubes 55a and 55b installed at the bottom of cup 57 becomes equal, and moves cup 57. (2) The gas is supplied from the opposite side of torch into the pipe assembled by fitting the outer margin of deliquescent paper made barrier 17 to the inner wall of pipe with a starch paste in advance. Barrier 17 is flowed out after the hydraulic test is carried out. Winding a soft string in the groove of beveling instead of the above mentioned method is also avaiable.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201980A JPS56139297A (en) | 1980-04-02 | 1980-04-02 | Backside inert gas shielding device and shielding method when stainless steel series pipings are welded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201980A JPS56139297A (en) | 1980-04-02 | 1980-04-02 | Backside inert gas shielding device and shielding method when stainless steel series pipings are welded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56139297A true JPS56139297A (en) | 1981-10-30 |
Family
ID=12624451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4201980A Pending JPS56139297A (en) | 1980-04-02 | 1980-04-02 | Backside inert gas shielding device and shielding method when stainless steel series pipings are welded |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56139297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2968585A3 (en) * | 2010-12-09 | 2012-06-15 | Air Liquide | Connecting tubular elements that are useful in air separation device, comprises connecting first end of first tubular element with second end of second tubular element, and closing first and second elements at first and second points |
| CN104493328A (en) * | 2014-12-02 | 2015-04-08 | 江苏武进不锈股份有限公司 | Infrared alignment pipe welding equipment |
-
1980
- 1980-04-02 JP JP4201980A patent/JPS56139297A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2968585A3 (en) * | 2010-12-09 | 2012-06-15 | Air Liquide | Connecting tubular elements that are useful in air separation device, comprises connecting first end of first tubular element with second end of second tubular element, and closing first and second elements at first and second points |
| CN104493328A (en) * | 2014-12-02 | 2015-04-08 | 江苏武进不锈股份有限公司 | Infrared alignment pipe welding equipment |
| CN104493328B (en) * | 2014-12-02 | 2016-11-30 | 江苏武进不锈股份有限公司 | Infrared ray alignment tubing welding equipment |
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