WELD JOINT, MANUFACTURING METHOD OF WELD JOINT, AUTOMOBILE MEMBER, AND HOUSING MATERIAL

• Main Authors: KODAMA SHINJI, MATSUBA MASAHIRO, ISHIDA KINYA
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DYES; FILLING PASTES; INKS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; SOLDERING OR UNSOLDERING; TRANSPORTING; USE OF MATERIALS THEREFOR; WELDING; WOODSTAINS; WORKING BY LASER BEAM

To improve an electro deposition property of a welding portion not depending on a chemical composition or welding conditions of a steel material and a welding wire to be used, without greatly reducing productivity.SOLUTION: A weld joint according to the present invention has a plurality of steel materials and weld beads. In the weld joint, at least part of a weld slag, a spatter, and a surface of a heat affected zone has a conductive coating film having a volume resistivity of 3.00×108 Ω m or less.SELECTED DRAWING: None 【課題】用いる鋼材及び溶接ワイヤの化学組成や溶接条件に依らずに、生産性を大きく損なうことなく、溶接部の電着塗装性を向上させること。【解決手段】本発明に係る溶接継手は、複数の鋼材と溶接ビードを有する溶接継手であって、溶接スラグ、スパッタ、及び、熱影響部の表面の少なくとも一部に、体積抵抗率が３．００×１０８Ω・ｍ以下である導電塗膜を有する。【選択図】なし