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发明公开
CN103551758A 一种核电工程用高韧性金属粉型药芯焊丝 有权

一种核电工程用高韧性金属粉型药芯焊丝
摘要：
本发明公开了一种核电工程用高韧性金属粉型药芯焊丝，采用钢带包裹药粉混合而成，所述药粉组成成分以重量百分比计为：电解锰1-8%、微碳铬铁0.5-5%、锰硅合金7-18%、钼铁2-10%、镍4-10%、钾长石0.1-2%、余量为铁粉；所述钢带组成成分以重量百分比计为：碳0.01-0.1%、锰0.1-0.4%、硅0.01-0.03%、硫0.005-0.015%、磷0.005-0.015%、余量为铁。本发明焊丝具有良好的工艺和理化性能，焊丝合金系统设计合理，焊丝综合成本低，焊丝焊后几乎无渣。
摘要（英）：

The invention discloses a high-toughness metal powder type flux-cored wire for nuclear power projects. The high-toughness metal powder type flux-cored wire is formed by a steel strip wrapping with chemical powder. The chemical powder comprises, by weight percentage, 1-8% of electrolytic manganese, 0.5-5% of micro-carbon ferro chrome, 7-18% of manganese-silicon alloy, 2-10% of ferro-molybdenum, 4-10% of nickel, 0.1-2% of potassium feldspar, and the balance of iron powder. The steel strip comprises, by weight percentage, 0.01-0.1% of carbon, 0.1-0.4% of manganese, 0.01-0.03% of silicon, 0.005-0.015% of sulfur, 0.005-0.015% of phosphorus, and the balance of iron. The high-toughness metal powder type flux-cored wire has the advantages that the wire has good process and physical-chemical performance, the wire is reasonable in alloy system design and low in comprehensive cost, and nearly no slag exists after welding.

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