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1. WO2020136777 - WELDED STRUCTURE

Publication Number WO/2020/136777
Publication Date 02.07.2020
International Application No. PCT/JP2018/047975
International Filing Date 26.12.2018
IPC
B23K 9/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
B23K 9/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
02Seam welding; Backing means; Inserts
B23K 9/23 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
23taking account of the properties of the materials to be welded
CPC
B23K 2101/18
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2101Articles made by soldering, welding or cutting
18Sheet panels
B23K 2103/04
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2103Materials to be soldered, welded or cut
02Iron or ferrous alloys
04Steel or steel alloys
B23K 33/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
33Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
B23K 9/0035
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
0026specially adapted for particular articles or work
0035of thin articles
B23K 9/0256
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
02Seam welding; Backing means; Inserts
025for rectilinear seams
0256for welding ribs on plates
Applicants
  • 日本製鉄株式会社 NIPPON STEEL CORPORATION [JP]/[JP]
Inventors
  • 大川 鉄平 OKAWA, Teppei
  • 島田 祐介 SHIMADA, Yusuke
  • 小田 直樹 ODA, Naoki
Agents
  • 特許業務法人ブライタス BRIGHTAS IP ATTORNEYS
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WELDED STRUCTURE
(FR) STRUCTURE SOUDÉE
(JA) 溶接構造体
Abstract
(EN)
A welded structure 10 having a T joint section where a joining member 11 is partial-penetration welded at both sides thereof to a joined member 12 while an end surface 11c of the joining member 11 is in contact with a joined surface 12a of the joined member 12, wherein the joining member 11 has a first surface 11a and a second surface 11b, the plate thickness t (mm) of the joining member 11 satisfies the expression [t≥50.0], and the nil-ductility transition temperatures according to an NRL drop-weight test using type P3 test specimens respectively taken from locations at 1mm depth in the first surface 11a and the second surface 11b of the joining member 11 are -60°C or less, and satisfy the expressions [NDTT1≤-30.5×ln(h1)-14.0] and [NDTT2≤-30.5×ln(h2)-14.0] in relation to the distance h1 (mm) between the first surface 11a and the farthest point of a first heat-affected section 15a of a first weld section 13a, and the distance h2 (mm) between the second surface 11b and the farthest point of a second heat-affected section 15b of a second weld section 13b.
(FR)
L'invention concerne une structure soudée (10) ayant une section de joint en T dans laquelle un élément de jonction (11) est soudé par pénétration partielle au niveau des deux côtés de celui-ci à un élément joint (12) tandis qu'une surface d'extrémité (11c) de l'élément de jonction (11) est en contact avec une surface jointe (12a) de l'élément joint (12), l'élément de jonction (11) ayant une première surface (11a) et une seconde surface (11b), l'épaisseur de plaque t (mm) de l'élément de jonction (11) satisfait l'expression [t≥50,0] et les températures de transition à ductilité nulle selon un essai de poids de goutte NRL à l'aide d'échantillons de test de type P3 pris respectivement à partir d'emplacements à une profondeur de 1 mm dans la première surface (11a) et la seconde surface (11b) de l'élément de jonction (11) sont de -60 °C ou moins et satisfont les expressions [NDTT1≤-30,5×ln(h1)-14,0] et [NDTT2≤-30,5×ln(h2)-14,0] par rapport à la distance h1 (mm) entre la première surface (11a) et le point le plus éloigné d'une première section (15a) affectée par la chaleur d'une première section de soudure (13a) et la distance h2 (mm) entre la seconde surface (11b) et le point le plus éloigné d'une seconde section (15b) affectée par la chaleur d'une seconde section de soudure (13b).
(JA)
接合部材11の端面11cが被接合部材12の被接合面12aに当接した状態で接合部材11が被接合部材12に両側部分溶込み溶接されたT継手部を有し、接合部材11は第1表面11aおよび第2表面11bを有し、接合部材11の板厚t(mm)が[t≧50.0]を満足し、接合部材11の、第1表面11aおよび第2表面11bの1mm深さ位置からそれぞれ採取されるタイプP3試験片を用いたNRL落重試験による無延性遷移温度が、-60℃以下であり、かつ第1溶接部13aの第1熱影響部15aの最頂点と第1表面11aとの距離h(mm)、および第2溶接部13bの第2熱影響部15bの最頂点と第2表面11bとの距離h(mm)との関係で[NDTT≦-30.5×ln(h)-14.0]および[NDTT≦-30.5×ln(h)-14.0]を満足する、溶接構造体10。
Also published as
Latest bibliographic data on file with the International Bureau