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发明公开
CN102554497A 一种细晶粒高强度钢筋CO2电弧焊用药芯焊丝 有权 转让

一种细晶粒高强度钢筋CO2电弧焊用药芯焊丝
摘要：
一种细晶粒高强度钢筋CO2电弧焊用药芯焊丝，由钢带和填充于其内的药芯组成，药芯中含有相对于焊丝总重3.5～6.0％的金红石；0.05～0.25%的CaO；0.05～0.35％的氟化物；0.2～2.5％的Si和/或Si的氧化物；0.1～1.5％的Mg和/或Mg的氧化物；1.2～4.5％的Mn和/或Mn的氧化物；0.2～1.5％的Al和/或Al的氧化物；0.1～0.5％的Zr的氧化物；0.01～0.5％的K的氧化物和/或Na的氧化物；0.01～0.2％的V或钒铁；0.05～0.8％的Ti或钛铁；0.001～0.1％的B或硼铁；0.05～0.2％的Mo或钼铁；0.1～0.6％的Ni；其余为铁粉。
摘要（英）：

The invention relates to a flux-cored wire for fine-grain high-strength steel bar CO2 arc welding, which is composed of a steel belt and a flux core filled in the steel belt, wherein on the basis of the total weight of the flux-cored wire, the flux core contains 3.5-6.0% of rutile, 0.05-0.25% of CaO, 0.05-0.35% of fluoride, 0.2-2.5% of Si and/or oxide of Si, 0.1-1.5% of Mg and/or oxide of Mg, 1.2-4.5% of Mn and/or oxide of Mn, 0.2-1.5% of Al and/or oxide of Al, 0.1-0.5% of oxide of Zr, 0.01-0.5% of oxide of K and/or oxide of Na, 0.01-0.2% of V or ferrovanadium, 0.05-0.8% of Ti or ferrotitanium, 0.001-0.1% of B or ferroboron, 0.05-0.2% of Mo or ferromolybdenum, 0.1-0.6% of Ni and the balance of iron powder.

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