JPS5542177A - Backing material for welding - Google Patents
Backing material for weldingInfo
- Publication number
- JPS5542177A JPS5542177A JP11618378A JP11618378A JPS5542177A JP S5542177 A JPS5542177 A JP S5542177A JP 11618378 A JP11618378 A JP 11618378A JP 11618378 A JP11618378 A JP 11618378A JP S5542177 A JPS5542177 A JP S5542177A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- welding
- layer part
- bodies
- backing material
- 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 make possible saving of back chipping process after welding by superposing two or more sheets of strip-form bodies of inorganic fibers having flexibility and making the lower layer side broader than the upper layer side thereby providing the backing material.
CONSTITUTION: Three sheets of inorganic-fiber-made strip form bodies 1a, 1b, 1c are superposed, the strip-form body 1a of the uppermost layer part being constituted narrowest in width, the strip-form body 1b of the intermediate layer part slightly broader than 1a and the strip-form material 1c of the lowermost layer part broadest. The strip-form body 1c of the lowermost layer is made more flexible than the strip- form bodies 1a, 1b. In welding, this backing material is pressed and disposed to the back of the groove by a back pressing member 3 of a suitable shape and welding is performed. The deposited metal is held by the strip-form bodies 1a and 1b of the upper layer part of lower flexibity and forms even and neat back beads. Clearances are made in the serrating parts 4 of the strip-form bodies 1a and 1b as well as 1b and 1c, through which escape of the gas evolved is accelerated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11618378A JPS5542177A (en) | 1978-09-20 | 1978-09-20 | Backing material for welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11618378A JPS5542177A (en) | 1978-09-20 | 1978-09-20 | Backing material for welding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5542177A true JPS5542177A (en) | 1980-03-25 |
Family
ID=14680853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11618378A Pending JPS5542177A (en) | 1978-09-20 | 1978-09-20 | Backing material for welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5542177A (en) |
-
1978
- 1978-09-20 JP JP11618378A patent/JPS5542177A/en active Pending
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