JPS5592289A - Low hydrogen base welding rod for site welding of steel pipe - Google Patents
Low hydrogen base welding rod for site welding of steel pipeInfo
- Publication number
- JPS5592289A JPS5592289A JP16219478A JP16219478A JPS5592289A JP S5592289 A JPS5592289 A JP S5592289A JP 16219478 A JP16219478 A JP 16219478A JP 16219478 A JP16219478 A JP 16219478A JP S5592289 A JPS5592289 A JP S5592289A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- welding rod
- caco3
- forming agent
- slag forming
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3602—Carbonates, basic oxides or hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
PURPOSE:The captioned welding rod which has the coating of the steel core wire by the coating agent containing respectively limited ratios of CaCO3, graphite and CaF2 and the rest composed of slag forming agent, deoxitizer and limited amount of iron powder and which is good in the circumferential welding work of steel pipes. CONSTITUTION:The captioned welding rod coated with the coating agent which contains CaCO3; 60-75wt%, graphite; 0.1-0.7wt% and CaF2 of 0.1-0.2 in compounding ratio to CaCO3 and is composed of the rest of slag forming agent, deoxidizer and limited amount of iron content of 7wt% or less. The deoxidizer composed primarily of Si and Mn and further added with Al, Ti, etc. is used. SiO2, Al2O3, TiO2, MnO and MgO are used for the slag forming agent. In order to facilitate the down welding of the entire circumference of the steel pipes in particular of the case when this welding rod is used, i.e., to prevent the drooping down of the slag, it is necessary that the weight ratio of the coating agent for the core wire be made 0.23-0.33.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16219478A JPS5939235B2 (en) | 1978-12-29 | 1978-12-29 | Low hydrogen welding rod for on-site welding of steel pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16219478A JPS5939235B2 (en) | 1978-12-29 | 1978-12-29 | Low hydrogen welding rod for on-site welding of steel pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5592289A true JPS5592289A (en) | 1980-07-12 |
JPS5939235B2 JPS5939235B2 (en) | 1984-09-21 |
Family
ID=15749779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16219478A Expired JPS5939235B2 (en) | 1978-12-29 | 1978-12-29 | Low hydrogen welding rod for on-site welding of steel pipes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5939235B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102189355A (en) * | 2010-03-11 | 2011-09-21 | 上海大西洋焊接材料有限公司 | Special nuclear power welding rod matched with steel plate for AP1000-type pressurized water reactor containment vessel |
JP2015085341A (en) * | 2013-10-29 | 2015-05-07 | 日鐵住金溶接工業株式会社 | Low-hydrogen type coated arc welding electrode |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6356506U (en) * | 1986-09-30 | 1988-04-15 |
-
1978
- 1978-12-29 JP JP16219478A patent/JPS5939235B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102189355A (en) * | 2010-03-11 | 2011-09-21 | 上海大西洋焊接材料有限公司 | Special nuclear power welding rod matched with steel plate for AP1000-type pressurized water reactor containment vessel |
JP2015085341A (en) * | 2013-10-29 | 2015-05-07 | 日鐵住金溶接工業株式会社 | Low-hydrogen type coated arc welding electrode |
Also Published As
Publication number | Publication date |
---|---|
JPS5939235B2 (en) | 1984-09-21 |
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