JPS56144868A - Production of internally overlaid elbow - Google Patents
Production of internally overlaid elbowInfo
- Publication number
- JPS56144868A JPS56144868A JP4807680A JP4807680A JPS56144868A JP S56144868 A JPS56144868 A JP S56144868A JP 4807680 A JP4807680 A JP 4807680A JP 4807680 A JP4807680 A JP 4807680A JP S56144868 A JPS56144868 A JP S56144868A
- Authority
- JP
- Japan
- Prior art keywords
- overlay
- elbow
- weld metal
- welding
- pipe
- 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
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To automate work, reduce time and improve quality by specifying the composition of overlaying weld metal and overlay-welding the same in a straight- pipe state then bending the pipe.
CONSTITUTION: The inside surface of a straight pipe is overlay-welded in such a manner that the composition of the weld metal consists of 18W22% Cr equiv. and 9W16 Ni equiv. and ≤10% ferrite in Schaeffler's diagram. A straight pipe 4 having this overlay weld metal 5 is formed to an elbow 6 of a one-piece shape. If the overlay weld mtal is within the above-described composition range, cracking by bending does not occur. Since the overlay welding of the inside surface can be made in the straight pipe state in this way, this method is easily adaptable to automatic welding, and no skill is required for the work.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4807680A JPS56144868A (en) | 1980-04-14 | 1980-04-14 | Production of internally overlaid elbow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4807680A JPS56144868A (en) | 1980-04-14 | 1980-04-14 | Production of internally overlaid elbow |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56144868A true JPS56144868A (en) | 1981-11-11 |
Family
ID=12793246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4807680A Pending JPS56144868A (en) | 1980-04-14 | 1980-04-14 | Production of internally overlaid elbow |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56144868A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013069573A1 (en) * | 2011-11-08 | 2013-05-16 | 株式会社フジコー | Curved surface weld overlay method and lance manufacturing method employing same |
CN103170810A (en) * | 2013-04-17 | 2013-06-26 | 二重集团(德阳)重型装备股份有限公司 | Bead-welding method of inner wall of 90-degree bent pipe |
CN103386556A (en) * | 2013-07-29 | 2013-11-13 | 张家港化工机械股份有限公司 | Surfacing welding method for inner wall of 90-degree elbow of shift converter |
CN106238866B (en) * | 2016-08-29 | 2018-07-31 | 东方电气集团东方锅炉股份有限公司 | Ni-based membrane panel welding method |
CN114309127A (en) * | 2020-09-29 | 2022-04-12 | 郑州万达重工股份有限公司 | Inner wall surfacing small-bending-radius bent pipe and forming method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53100150A (en) * | 1977-02-14 | 1978-09-01 | Kobe Steel Ltd | Method and apparatus for bent tube welding |
-
1980
- 1980-04-14 JP JP4807680A patent/JPS56144868A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53100150A (en) * | 1977-02-14 | 1978-09-01 | Kobe Steel Ltd | Method and apparatus for bent tube welding |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013069573A1 (en) * | 2011-11-08 | 2013-05-16 | 株式会社フジコー | Curved surface weld overlay method and lance manufacturing method employing same |
CN103170810A (en) * | 2013-04-17 | 2013-06-26 | 二重集团(德阳)重型装备股份有限公司 | Bead-welding method of inner wall of 90-degree bent pipe |
CN103386556A (en) * | 2013-07-29 | 2013-11-13 | 张家港化工机械股份有限公司 | Surfacing welding method for inner wall of 90-degree elbow of shift converter |
CN106238866B (en) * | 2016-08-29 | 2018-07-31 | 东方电气集团东方锅炉股份有限公司 | Ni-based membrane panel welding method |
CN114309127A (en) * | 2020-09-29 | 2022-04-12 | 郑州万达重工股份有限公司 | Inner wall surfacing small-bending-radius bent pipe and forming method thereof |
CN114309127B (en) * | 2020-09-29 | 2023-09-26 | 郑州万达重工股份有限公司 | Inner wall surfacing small bending radius bent pipe and forming method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55117562A (en) | Build-up welding method of stainless steel | |
JPS56144868A (en) | Production of internally overlaid elbow | |
JPS5510373A (en) | Welding method for stainless steel material | |
JPS53141140A (en) | Process for forming weld joint of pipeline or vessel | |
JPS53113734A (en) | One-side arc welding method for 9% ni steel | |
JPS53115640A (en) | Automatic branch pipe welding device | |
JPS53130241A (en) | Welding method for manufacture of thick walled steel pipe | |
JPS5530327A (en) | Pipe making method | |
JPS5413433A (en) | Welding method for stainless steel | |
JPS5395850A (en) | Multiple wire submerged arc welding method | |
JPS56139224A (en) | Production of oval duct pipe | |
JPS5450446A (en) | Improving method for low-temperature toughness of 9%ni steel weld zone obtained by similar-metal-welding | |
JPS56158288A (en) | Electron beam welding | |
JPS5318814A (en) | Strengthening structure for steel pipe bending | |
JPS53119772A (en) | Manufacture of force welded pipe | |
JPS53142339A (en) | Welding process reducing stress corrosion cracking | |
JPS548133A (en) | Welding method for austenitic stainless steel | |
JPS53140245A (en) | Improving method for fatiuge strength of fillet welded joint | |
JPS5419457A (en) | Method of and apparatus for producing large diameter spiral weld pipe | |
JPS5522427A (en) | Fillet welding method for cast iron | |
JPS53119238A (en) | Submerged arc welding method preventing sr embrittlement of weld metal | |
Sosnin | A Choice of Welding Processes and Procedures and Their Relation to Corrosion | |
JPS55149782A (en) | Uo pipe straight seam submerged arc welding method of steel plate containing nb and v | |
JPS54137446A (en) | Welding of thick steel plate | |
JPS57134547A (en) | Heat resistant alloy for centrifugally cast pipe |