460 MPA-GRADE ALL-POSITION GAS SHIELDED WELDING WIRE FOR BUILDING RESISTANT TO SECONDARY FIRE AND MANUFACTURING METHOD

• Main Authors: YIN, YuQun, LI, Song, TIAN, Hao, CUI, Qiang, WANG, XiaoBin, LI, Wei, SHI, XiaoFan, MENG, LingMing, WANG, JingJie
• Format: Patent
• Language: Chinese; English; French
• Published: 29.12.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

A 460 MPa-grade all-position gas shielded welding wire for a building resistant to secondary fire and a manufacturing method. The chemical components of the gas shielded welding wire are: C: 0.060-0.080 wt％; Si: 0.35-0.50 wt％; Mn: 1.10-1.25 wt％; Cr≤0.15wt％; Ni: 0.80-0.95 wt％; Mo: 0.45-0.55 wt％; Cu≤0.08 wt％; P≤0.008 wt％; S≤0.005 wt％; and the balance being Fe and inevitable impurities. The gas shielded welding wire has excellent mechanical properties, can withstand secondary fire, can effectively promote construction and application of the building resistant to secondary fire, improves the fire-resistant safety of the building, and saves reconstruction costs after primary fire. Fil de soudage protégé contre les gaz toutes positions de classe 460 MPa pour un bâtiment résistant aux incendies secondaires et procédé de fabrication. Les composants chimiques du fil de soudage protégé contre les gaz sont : C : 0,060-0,080 ％ en poids ; Si : 0,35-0,50 ％ en poids ; Mn : 1,10-1,25 ％ en poids ; Cr ≤ 0,15 ％ en poids ; Ni :