Welding rod for welding 1Ni9 steel and preparation method thereof
A welding rod and core technology, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve the problems of high price and poor process performance, and achieve low cost, detailed and beautiful welding seam, and stable arc performance. good effect
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[0028] The misch is a mixture of 20% yttrium oxide, 20% cerium oxide and 60% lanthanum oxide. The preparation method of above-mentioned welding rod, comprises the following steps:
[0029] step 1,
[0030] Weigh the following components by mass percentage: 34%-48% carbonate (one or two of dolomite and marble), 17%-24% fluorite, 2%-6% zircon Sand, 1%-4% ferrosilicon, 5%-12% ferrotitanium, 3%-5% medium carbon ferromanganese, 2%-5% titanium dioxide, 2%-5% rutile, 2% -6% mica, 0.7%-1% alkali, 1%-3% mixed rare earth (a mixture of 20% yttrium oxide, 20% cerium oxide and 60% lanthanum oxide), 2%-6% Manganese metal, 1%-3% ferroniobium, the sum of the mass percentages of the above components is 100%;
[0031] The above-mentioned component materials weighed together with the potassium-sodium mixed water glass with a modulus of 2.8 were put into a mixer and mixed for 15 minutes, and then the mixed medicinal powder was put into a compactor and pressed into a cylindrical pill; The addi...
Embodiment 1
[0059] Weigh 440g (44%) of marble, 220g (22%) of fluorite, 40g (4%) of zircon sand, 20g (2%) of ferrosilicon, and 60g (6%) of ferrosilicon according to mass percentage , 40g (4%) of medium carbon ferromanganese, 40g (4%) of titanium dioxide, 50g (5%) of rutile, 30g (3%) of mica, 10g (1%) of alkali, 20g (2%) Mixed rare earth (20% yttrium oxide, 20% cerium oxide and 60% lanthanum oxide mixture), 20g (2%) of manganese metal, 10g (1%) of ferroniobium; the above powder material and the above The potassium-sodium mixed water glass of medicated powder material 310g (31%) is put into mixer together and mixed for 15 minutes, then the mixed medicated powder is put into a compactor and pressed into a cylindrical drug mass;
[0060] Add the cylindrical drug ball prepared in the previous stage into the electrode press coating machine, and press the drug ball on the ERNiCrMo-3 welding core, put the prepared electrode into the box furnace at a low temperature of 60 ° C × 10 h, and then High...
Embodiment 2
[0068] Weigh 150g (15%) of marble, 250g (25%) of dolomite, 180g (18%) of fluorite, 40g (4%) of zircon sand, and 20g (2%) of ferrosilicon according to mass percentage , 80g (8%) of titanium ferromanganese, 40g (4%) of medium carbon ferromanganese, 50g (5%) of titanium dioxide, 50g (5%) of rutile, 50g (5%) of mica, 10g (1% ), 30g (3%) of mixed rare earths (a mixture of 20% yttrium oxide, 20% cerium oxide and 60% lanthanum oxide), 30g (3%) of manganese metal, 20g (2%) of Ferroniobium; the above-mentioned medicinal powder material and the potassium-sodium mixed water glass of the above-mentioned medicinal powder material 300g (30%) are put into a mixer and mixed for 15 minutes, and then the mixed medicinal powder is put into a compactor and pressed into a cylindrical medicinal powder group;
[0069] Add the cylindrical drug ball prepared in the previous stage into the electrode press coating machine, and press the drug ball on the ERNiCrMo-3 welding core, put the prepared electro...
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