JP2014217855A - サブマージアーク溶接による厚板鋼板の多層盛溶接方法 - Google Patents
サブマージアーク溶接による厚板鋼板の多層盛溶接方法 Download PDFInfo
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- JP2014217855A JP2014217855A JP2013098089A JP2013098089A JP2014217855A JP 2014217855 A JP2014217855 A JP 2014217855A JP 2013098089 A JP2013098089 A JP 2013098089A JP 2013098089 A JP2013098089 A JP 2013098089A JP 2014217855 A JP2014217855 A JP 2014217855A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 239000003365 glass fiber Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 92
- 239000002893 slag Substances 0.000 claims description 23
- 239000002184 metal Substances 0.000 description 20
- 239000011810 insulating material Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- 230000004907 flux Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical compound OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 4
- UOACKFBJUYNSLK-XRKIENNPSA-N Estradiol Cypionate Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H](C4=CC=C(O)C=C4CC3)CC[C@@]21C)C(=O)CCC1CCCC1 UOACKFBJUYNSLK-XRKIENNPSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009863 impact test Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 101710167806 Alpha N-terminal protein methyltransferase 1 Proteins 0.000 description 1
- 101100132477 Arabidopsis thaliana NAC69 gene Proteins 0.000 description 1
- 102100029136 Collagen alpha-1(II) chain Human genes 0.000 description 1
- 102100033825 Collagen alpha-1(XI) chain Human genes 0.000 description 1
- 101000771163 Homo sapiens Collagen alpha-1(II) chain Proteins 0.000 description 1
- 101000710623 Homo sapiens Collagen alpha-1(XI) chain Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
-
- 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
-
- 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
- B23K9/18—Submerged-arc welding
-
- 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
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
Abstract
Description
これは、多層溶接時においても溶接金属内に発生した溶接欠陥(低温割れ)の発生が引っ張り強度に悪影響を及ぼしているものと推測される。
この温度履歴から、ワークを断熱材で被覆するS8I試験体はフラックス及びスラグを回収しないS8S試験体や溶接施工後にフラックス及びスラグを回収するS8N試験体に比べてワーク温度を長時間保持できることが確認できた。
ここで斜め縦断面とは図8に示すように、溶接線に沿って深さ方向に変化する傾斜面で切断した縦断面である。
これに対して断熱材保温を施したS8I試験体では、他の試験体に比較して、いずれも高い耐力値を示した。
Claims (3)
- 肉厚60mmを越える極厚鋼板をボックス状に組んでその接合部をサブマージアーク溶接で多層盛溶接して鉄骨柱に形成するにあたり、
初層溶接後スラグを残置した状態でワーク全体をグラスファイバー製断熱材で被覆して所定時間保温し、その保温時間経過後第2層溶接を行い、以後溶接終了後一定時間経過後次層溶接を行うようにしたことを特徴とするサブマージアーク溶接による厚板鋼板の多層盛溶接方法。 - 各層溶接後に6時間以上保温する請求項1に記載のサブマージアーク溶接による厚板鋼板の多層盛溶接方法。
- 初層溶接後の溶接部温度が100℃以下に低下するまで保温する請求項1に記載のサブマージアーク溶接による厚板鋼板の多層盛溶接方法。
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JP5657053B2 JP5657053B2 (ja) | 2015-01-21 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104625358A (zh) * | 2015-01-05 | 2015-05-20 | 云南昆钢新型复合材料开发有限公司 | 耐磨钢与低碳钢异种金属埋弧焊焊接工艺 |
CN114346370A (zh) * | 2021-12-29 | 2022-04-15 | 苏州优霹耐磨复合材料有限公司 | 一种能够消除残留应力的堆焊装置以及方法 |
JP2022062812A (ja) * | 2020-10-09 | 2022-04-21 | Jfeスチール株式会社 | 溶接組立箱形断面部材 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4939746B1 (ja) * | 1968-10-22 | 1974-10-28 | ||
JP2007313524A (ja) * | 2006-05-24 | 2007-12-06 | Jfe Engineering Kk | 極厚鋼板の溶接方法 |
JP2008526522A (ja) * | 2005-01-17 | 2008-07-24 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | 2つの要素を接合するための方法およびスリーブ |
-
2013
- 2013-05-08 JP JP2013098089A patent/JP5657053B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4939746B1 (ja) * | 1968-10-22 | 1974-10-28 | ||
JP2008526522A (ja) * | 2005-01-17 | 2008-07-24 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | 2つの要素を接合するための方法およびスリーブ |
JP2007313524A (ja) * | 2006-05-24 | 2007-12-06 | Jfe Engineering Kk | 極厚鋼板の溶接方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104625358A (zh) * | 2015-01-05 | 2015-05-20 | 云南昆钢新型复合材料开发有限公司 | 耐磨钢与低碳钢异种金属埋弧焊焊接工艺 |
JP2022062812A (ja) * | 2020-10-09 | 2022-04-21 | Jfeスチール株式会社 | 溶接組立箱形断面部材 |
JP7435397B2 (ja) | 2020-10-09 | 2024-02-21 | Jfeスチール株式会社 | 溶接組立箱形断面部材 |
CN114346370A (zh) * | 2021-12-29 | 2022-04-15 | 苏州优霹耐磨复合材料有限公司 | 一种能够消除残留应力的堆焊装置以及方法 |
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JP5657053B2 (ja) | 2015-01-21 |
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