JPS5592289A - Low hydrogen base welding rod for site welding of steel pipe - Google Patents

Low hydrogen base welding rod for site welding of steel pipe

Info

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
Application number
JP16219478A
Other languages
Japanese (ja)
Other versions
JPS5939235B2 (en
Inventor
Atsushi Shiga
Koji Shinkawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP16219478A priority Critical patent/JPS5939235B2/en
Publication of JPS5592289A publication Critical patent/JPS5592289A/en
Publication of JPS5939235B2 publication Critical patent/JPS5939235B2/en
Expired legal-status Critical Current

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.
JP16219478A 1978-12-29 1978-12-29 Low hydrogen welding rod for on-site welding of steel pipes Expired JPS5939235B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6356506U (en) * 1986-09-30 1988-04-15

Cited By (2)

* Cited by examiner, † Cited by third party
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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