900MPa high-strength welding wire for mining machine and application method
A high-strength, welding wire technology, applied in welding media, welding equipment, welding equipment, etc., can solve the problem of high price, and achieve the effect of reducing price, reducing manufacturing cost, and reducing ductile-brittle transition temperature
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[0021] A kind of 900MPa high-strength welding wire for mining machinery, its composition and mass percentage are as follows:
[0022]
[0023] Below in conjunction with specific examples, the balance is iron and unavoidable impurities.
[0024] 1 2 3 4 5 6 7 8 9 C 0.060 0.110 0.100 0.062 0.070 0.105 0.089 0.090 0.080 Si 0.60 0.90 0.70 0.80 0.65 0.76 0.85 0.78 0.85 mn 1.40 2.00 1.45 1.90 1.85 1.50 1.48 1.78 1.85 Ni 1.40 2.00 1.70 1.00 1.80 1.90 1.56 1.79 1.85 Cr 0.30 0.80 0.70 0.32 0.75 0.45 0.34 0.45 0.50 Mo 0.10 0.40 0.35 0.28 0.24 0.27 0.38 0.15 0.20 Ti 0.16 0.09 0.087 0.086 0.11 0.09 0.15 0.08 0.09 S 0.02 0.010 0.014 0.005 0.007 0.009 0.015 0.012 0.017 P 0.02 0.010 0.020 0.008 0.010 0.013 0.015 0.007 0.004
[0025] The welding wire of the above-mentioned embodiment was welded in 80%Ar+20%CO Argon-rich gas protection, and tested....
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