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    • 18. 发明授权
    • Flux-cored wire for gas-shielded arc welding
    • 用于气体保护电弧焊的焊芯焊丝
    • US06940042B2
    • 2005-09-06
    • US10620386
    • 2003-07-17
    • Noriyuki HaraAkinobu GotoHitoshi HatanoKen Yamashita
    • Noriyuki HaraAkinobu GotoHitoshi HatanoKen Yamashita
    • B23K35/00B23K35/30B23K35/36B23K35/368B23K35/02
    • B23K35/3608B23K35/3053B23K35/368
    • A flux-cored wire for gas-shielded arc welding comprises a steel sheath, and a flux filled in the steel sheath. The flux-cored wire has a C content of 0.20% by mass or below, a Si content in the range of 0.06 to 1.10% by mass, a Mn content in the range of 0.55 to 1.60% by mass, a Cr content of 2.60% by mass or below, a Mo content in the range of 0.30 to 1.50% by mass, a Mg content in the range of 0.20 to 1.50% by mass, a N content in the range of 0.005 to 0.035% by mass and a B content in the range of 0.001 to 0.020% by mass on the basis of the total mass of the flux-cored wire. The flux has a TiO2 content in the range of 4.2 to 8.2% by mass and a fluorine compound content in terms of F content in the range of 0.025 to 0.55% by mass on the basis of the total mass of the flux-cored wire, and the flux-cored wire has an Al content of 0.50% by mass or below, a Nb content of 0.015% by mass or below, and a V content of 0.015% by mass or below on the basis of the total mass of the flux-cored wire. The flux-cored wire forms a weld metal that is resistant to ferrite band maintains proper tensile strength and excellent toughness even if the weld metal is processed at high temperatures for a long time for PWHT. The flux-cored wire has satisfactory usability
    • 用于气体保护电弧焊的药芯焊丝包括钢护套和填充在钢护套中的焊剂。 药芯焊丝的C含量为0.20质量%以下,Si含量为0.06〜1.10质量%,Mn含量为0.55〜1.60质量%,Cr含量为2.60 质量%以下,Mo含量为0.30〜1.50质量%,Mg含量为0.20〜1.50质量%,N含量为0.005〜0.035质量%,B为 含量在基于药芯焊丝的总质量的0.001〜0.020质量%的范围内。 助熔剂的TiO 2含量在4.2〜8.2质量%的范围内,氟化合物含量以F含量为基准计,为0.025〜0.55质量% 药芯焊丝的质量和药芯焊丝的Al含量为0.50质量%以下,Nb含量为0.015质量%以下,V含量为0.015质量%以下 药芯焊丝总质量的基础。 药芯焊丝形成耐铁氧体带的焊接金属,即使焊接金属在高温下长时间处理PWHT也能保持合适的拉伸强度和优异的韧性。 药芯焊丝具有令人满意的可用性
    • 20. 发明授权
    • Flux-cored welding wire with a low nitrogen content
    • 含氮量低的焊剂芯焊丝
    • US6124569A
    • 2000-09-26
    • US90887
    • 1998-06-05
    • Christian BonnetBruno Leduey
    • Christian BonnetBruno Leduey
    • B23K9/167B23K9/173B23K35/30B23K35/368B23K35/00
    • B23K35/3073B23K9/173
    • A flux-cored wire for welding shielded by a flow of gas, in particular of the rutile or slag-free type, composed of an outer metal sheath and a central core comprising filling elements, and an MAG gas-shielded welding process using such a flux-cored wire for producing a welded joint on a steel construction, such as an offshore platform or a storage tank. The welded joint obtained has improved impact strength and improved toughness, and contains less than 65 ppm nitrogen, from 300 ppm to 0.12% carbon, from 0.01% to 0.6% silicon, from 0.9% to 1.9% manganese, from 20 ppm to 0.08% titanium, from 1 ppm to 80 ppm boron, from 5 ppm to 150 ppm aluminum, from 10 ppm to 0.02% niobium and from 10 ppm to 0.02% vanadium.
    • 用于通过由外部金属护套和包括填充元件的中心芯构成的由气流特别是金红石或无渣类型屏蔽的药芯焊丝,以及使用这种焊料的MAG气体保护焊接方法 用于在钢结构(例如海上平台或储罐)上生产焊接接头的药芯焊丝。 获得的焊接接头具有改进的冲击强度和改善的韧性,并且包含小于65ppm的氮,从300ppm至0.12%的碳,0.01%至0.6%的硅,0.9%至1.9%的锰,20ppm至0.08% 钛,1ppm至80ppm的硼,5ppm至150ppm的铝,10ppm至0.02%的铌和10ppm至0.02%的钒。