KR20220114475A - 가스 실드 아크 용접용 플럭스 코어드 와이어 - Google Patents
가스 실드 아크 용접용 플럭스 코어드 와이어 Download PDFInfo
- Publication number
- KR20220114475A KR20220114475A KR1020220010575A KR20220010575A KR20220114475A KR 20220114475 A KR20220114475 A KR 20220114475A KR 1020220010575 A KR1020220010575 A KR 1020220010575A KR 20220010575 A KR20220010575 A KR 20220010575A KR 20220114475 A KR20220114475 A KR 20220114475A
- Authority
- KR
- South Korea
- Prior art keywords
- mass
- less
- wire
- content
- flux
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 230000004907 flux Effects 0.000 claims abstract description 23
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 9
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 93
- 238000005260 corrosion Methods 0.000 abstract description 93
- 239000002184 metal Substances 0.000 abstract description 50
- 229910052751 metal Inorganic materials 0.000 abstract description 50
- 239000011324 bead Substances 0.000 abstract description 26
- 239000002893 slag Substances 0.000 abstract description 20
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 26
- 239000010779 crude oil Substances 0.000 description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 238000011156 evaluation Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 238000011049 filling Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000012085 test solution Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 7
- 229910052593 corundum Inorganic materials 0.000 description 7
- 229910052906 cristobalite Inorganic materials 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 235000012239 silicon dioxide Nutrition 0.000 description 7
- 229910052682 stishovite Inorganic materials 0.000 description 7
- 229910052905 tridymite Inorganic materials 0.000 description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- -1 Si oxide Chemical class 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 241000700124 Octodon degus Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910001245 Sb alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 125000002015 acyclic group Chemical group 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
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
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
-
- 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
- B23K35/3607—Silica or silicates
-
- 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
- B23K35/3608—Titania or titanates
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2021-018594 | 2021-02-08 | ||
JP2021018594A JP2022121316A (ja) | 2021-02-08 | 2021-02-08 | ガスシールドアーク溶接用フラックス入りワイヤ |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20220114475A true KR20220114475A (ko) | 2022-08-17 |
Family
ID=82762541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020220010575A KR20220114475A (ko) | 2021-02-08 | 2022-01-25 | 가스 실드 아크 용접용 플럭스 코어드 와이어 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2022121316A (ja) |
KR (1) | KR20220114475A (ja) |
CN (1) | CN114905181A (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005023421A (ja) | 2003-02-26 | 2005-01-27 | Nippon Steel Corp | 耐食性に優れた溶接継手を有する原油油槽 |
JP2005021981A (ja) | 2003-02-26 | 2005-01-27 | Nippon Steel Corp | 耐食性に優れた溶接継手 |
JP2010043342A (ja) | 2008-08-18 | 2010-02-25 | Nippon Steel Corp | 耐食性と耐延性破壊特性に優れた原油油槽用溶接継手 |
JP2012001809A (ja) | 2010-05-18 | 2012-01-05 | Jfe Steel Corp | 耐食性に優れる溶接継手および原油タンク |
JP2013226577A (ja) | 2012-04-25 | 2013-11-07 | Nippon Steel & Sumikin Welding Co Ltd | 原油油槽鋼のガスシールドアーク溶接用フラックス入りワイヤ |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4259887B2 (ja) * | 2003-01-31 | 2009-04-30 | 株式会社神戸製鋼所 | 耐食性鋼用ガスシールドアーク溶接用フラックス入りワイヤ |
JP5339871B2 (ja) * | 2008-11-28 | 2013-11-13 | 日鐵住金溶接工業株式会社 | 低温用鋼のサブマージアーク溶接用フラックス入りワイヤおよび溶接方法。 |
CN101905392B (zh) * | 2010-08-26 | 2012-04-25 | 宜昌猴王焊丝有限公司 | 一种高韧性低合金实芯焊丝 |
JP5717688B2 (ja) * | 2012-04-25 | 2015-05-13 | 日鐵住金溶接工業株式会社 | 原油油槽鋼の水平すみ肉ガスシールドアーク溶接用フラックス入りワイヤ |
JP6104090B2 (ja) * | 2013-08-05 | 2017-03-29 | 株式会社神戸製鋼所 | サブマージアーク溶接用フラックス及びその製造方法 |
CN103737192A (zh) * | 2014-01-06 | 2014-04-23 | 四川大西洋焊接材料股份有限公司 | 用于钢安全壳埋弧横焊用的焊剂、制备方法及焊接方法 |
CN105522296A (zh) * | 2016-02-17 | 2016-04-27 | 北京工业大学 | 一种背面不充氩的单面焊双面成型氩弧打底焊的镍基625焊丝 |
WO2018051823A1 (ja) * | 2016-09-13 | 2018-03-22 | 株式会社神戸製鋼所 | エレクトロスラグ溶接用ワイヤ、エレクトロスラグ溶接用フラックス及び溶接継手 |
JP6939508B2 (ja) * | 2017-12-19 | 2021-09-22 | 日本製鉄株式会社 | 耐食鋼のガスシールドアーク溶接用フラックス入りワイヤ、及び溶接継手の製造方法 |
CN108581270B (zh) * | 2018-03-16 | 2020-12-04 | 洛阳双瑞特种合金材料有限公司 | 一种lpg船焊接用烧结焊剂及其制备方法与应用 |
JP7078436B2 (ja) * | 2018-03-29 | 2022-05-31 | 株式会社神戸製鋼所 | サブマージアーク溶接用フラックス及びその製造方法 |
CN112247398B (zh) * | 2020-11-02 | 2022-04-12 | 郑州大学 | 一种利用钢渣制备的结构钢用低氢易焊接碱性药芯焊丝 |
-
2021
- 2021-02-08 JP JP2021018594A patent/JP2022121316A/ja active Pending
- 2021-12-13 CN CN202111515039.3A patent/CN114905181A/zh not_active Withdrawn
-
2022
- 2022-01-25 KR KR1020220010575A patent/KR20220114475A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005023421A (ja) | 2003-02-26 | 2005-01-27 | Nippon Steel Corp | 耐食性に優れた溶接継手を有する原油油槽 |
JP2005021981A (ja) | 2003-02-26 | 2005-01-27 | Nippon Steel Corp | 耐食性に優れた溶接継手 |
JP2010043342A (ja) | 2008-08-18 | 2010-02-25 | Nippon Steel Corp | 耐食性と耐延性破壊特性に優れた原油油槽用溶接継手 |
JP2012001809A (ja) | 2010-05-18 | 2012-01-05 | Jfe Steel Corp | 耐食性に優れる溶接継手および原油タンク |
JP2013226577A (ja) | 2012-04-25 | 2013-11-07 | Nippon Steel & Sumikin Welding Co Ltd | 原油油槽鋼のガスシールドアーク溶接用フラックス入りワイヤ |
Also Published As
Publication number | Publication date |
---|---|
JP2022121316A (ja) | 2022-08-19 |
CN114905181A (zh) | 2022-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5194586B2 (ja) | 亜鉛めっき鋼板溶接用ステンレス鋼フラックス入り溶接ワイヤ | |
JP5768547B2 (ja) | 高張力鋼ガスシールドアーク溶接用フラックス入りワイヤ | |
JP2010110817A (ja) | 低水素系被覆アーク溶接棒 | |
WO2017154120A1 (ja) | フラックス入りワイヤ、溶接継手の製造方法、及び溶接継手 | |
JP4566899B2 (ja) | 高強度ステンレス鋼溶接用フラックス入りワイヤ | |
CN102639285A (zh) | Ni基合金焊接金属、Ni基合金涂药焊条 | |
KR20190073457A (ko) | 플럭스 코어드 와이어, 용접 조인트의 제조 방법, 및 용접 조인트 | |
US20160318133A1 (en) | Welding material for heat resistant steel | |
KR102092059B1 (ko) | 서브머지드 아크 용접용 Ni기 합금 와이어 및 용접 조인트의 제조 방법 | |
JP6453178B2 (ja) | ガスシールドアーク溶接用フラックス入りワイヤ | |
JP6953931B2 (ja) | ガスシールドアーク溶接用フラックス入りワイヤ、及び溶接継手の製造方法 | |
JP4838100B2 (ja) | 耐候性鋼用水平すみガスシールドアーク溶接用フラックス入りワイヤ | |
JP6958139B2 (ja) | ガスシールドアーク溶接用フラックス入りワイヤ、及び溶接継手の製造方法 | |
JP5417098B2 (ja) | 低温用鋼のサブマージアーク溶接方法 | |
JPWO2019186811A1 (ja) | フラックス入りワイヤの製造方法、フラックス入りワイヤ、及び溶接継手の製造方法 | |
JP7408295B2 (ja) | 9%Ni鋼溶接用被覆アーク溶接棒 | |
JP6953930B2 (ja) | ガスシールドアーク溶接用フラックス入りワイヤ、及び溶接継手の製造方法 | |
KR20220114475A (ko) | 가스 실드 아크 용접용 플럭스 코어드 와이어 | |
JP2016078121A (ja) | ガスシールドアーク溶接用フラックス入りワイヤ | |
KR20220114476A (ko) | 가스 실드 아크 용접용 플럭스 코어드 와이어 | |
JP2007054878A (ja) | 耐火構造用鋼の被覆アーク溶接棒 | |
JP7007253B2 (ja) | ガスシールドアーク溶接用フラックス入りワイヤ | |
JP2020189302A (ja) | 原油油槽鋼の低水素系被覆アーク溶接棒 | |
JP7323497B2 (ja) | フラックス入りワイヤ | |
JP2754438B2 (ja) | パイプの被覆アーク溶接方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |