A surfacing flux-cored wire for hot forging die repair
A technology of hot forging dies and welding flux, applied in welding medium, manufacturing tools, welding equipment, etc., can solve problems such as insufficient crack resistance, achieve arc stability, good surfacing welding processability, and meet repair needs
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Embodiment 1
[0042]Take 500g of sodium fluoride, 750g of calcium fluoride, 500g of rutile, 430g of quartz, 430g of high-carbon ferrochrome, 2480g of pure chromium powder, 600g of pure nickel powder, 150g of ferrotungsten powder, 510g of electrolytic manganese, 2730g of ferromolybdenum powder, and ferrosilicon powder 610g, vanadium iron powder 140g, reduced iron powder 170g. Add the obtained flux-cored powder into the U-shaped steel strip groove with a filling rate of 30%, close the U-shaped groove to obtain a surfacing flux-cored wire with a diameter of 2.4mm, and prepare the surfacing layer according to the above-mentioned process, and the obtained The alloy composition in the deposited metal is: C: 0.05wt.%; Cr: 8.5wt.%; Ni: 1wt.%; W: 0.2wt.%; Mn: 0.8wt.%; Mo: 4.3wt.%; : 0.6wt.%; V: 0.25wt.%; Fe: balance.
Embodiment 2
[0044] Take 200g of sodium fluoride, 550g of calcium fluoride, 350g of rutile, 100g of quartz, 1320g of high carbon ferrochrome, 3830g of pure chromium powder, 1130g of pure nickel powder, 350g of tungsten iron powder, 250g of electrolytic manganese, 1470g of molybdenum iron powder, ferrosilicon powder 360g, 20g of vanadium iron powder, 70g of reduced iron powder. Add the obtained flux-cored powder into the U-shaped steel strip groove with a filling rate of 30%, close the U-shaped groove to obtain a surfacing flux-cored wire with a diameter of 2.4mm, and prepare the surfacing layer according to the above-mentioned process, and the obtained The alloy composition in the deposited metal is: C: 0.25wt.%; Cr: 13.5wt.%; Ni: 2.6wt.%; W: 1.2wt.%; Mn: 0.45wt.%; Mo: 2.5wt.%; Si: 0.1wt.%; V: 0.05wt.%; Fe: balance.
Embodiment 3
[0046] Take 600g of sodium fluoride, 500g of calcium fluoride, 550g of rutile, 500g of quartz, 530g of high-carbon ferrochrome, 2580g of pure chromium powder, 650g of pure nickel powder, 200g of ferrotungsten powder, 460g of electrolytic manganese, 2630g of ferromolybdenum powder, and ferrosilicon powder 560g, vanadium iron powder 130g, reduced iron powder 110g. Add the obtained flux-cored powder into the U-shaped steel strip groove with a filling rate of 30%, close the U-shaped groove to obtain a surfacing flux-cored wire with a diameter of 2.4mm, and prepare the surfacing layer according to the above-mentioned process, and the obtained The alloy composition in the deposited metal is: C: 0.1wt.%; Cr: 9wt.%; Ni: 1.6wt.%; W: 0.3wt.%; Mn: 0.65wt.%; Mo: 4.1wt.%; : 0.5wt.%; V: 0.2wt.%; Fe: balance.
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