LOW-COST GAS SHIELDED FLUX-CORED WIRE WITH RECYCLED WELDING SLAG
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United States of America Patent
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Issued Date -
Sep 27, 2012
app pub date -
Mar 12, 2012
filing date -
Mar 21, 2011
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Abandoned
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Abstract
A gas shielded flux-cored wire (FCW) comprises s steel sheath and core flux, in which recycled welding slag powder is used to partially replace the natural rutile. The core flux contains (by weight): 10-50% recycling welding slag powder, 10-45% TiO2, 2-7% Si, 5-20% Mn, 0.5-5% Al—Mg (Al/Mg=1), 0-11.52% Na2CO3, 0-8.85% K2CO3, 0-10% MgO, 0.5-10% fluoride, and iron powder as balance. The recycling welding contains (by weight): TiO2: 20-65%, MnO: 5%-15%, MgO: 5%-15%, SiO2: 5%-15%, Fe2O3: 1%-10%, Al2O3: 1%-10%.
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