Brazing filler metal for vacuum brazing of high-nitrogen steel and preparation method of brazing filler metal
A technology of high-nitrogen steel and brazing material, which is applied in the field of high-nitrogen steel welding, can solve problems such as the inability to guarantee the connection strength and service life of high-nitrogen steel, and the inability to ensure the uniformity of the connection structure of the base material of high-nitrogen steel, so as to improve the connection Strength and mechanical properties, ensuring tissue uniformity, and enhancing mechanical properties
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Embodiment 1
[0035] For 0.9 parts of N, 65 parts of Fe, 1.9 parts of Ni, 23 parts of Cr, 19 parts of Mn, 1.2 parts of Mo, 0.2 parts of C, 0.02 parts of S, 0.05 parts of P and 0.5 parts of Si (by weight) When the steel is vacuum brazed, use 25 parts of Pd, 46 parts of Ni, 36 parts of Cr, 2.8 parts of vanadium-nickel-coated graphene, 12 parts of Mn, 7 parts of Re, 6 parts of Si and 2 parts of B (by weight) The brazing filler metal of composition, this brazing filler metal adopts following method to prepare:
[0036] The first step, utilize FAD5001 electronic balance, weigh 15g distilled water, 15g water-based adhesive, 5g acetone and 6g molar concentration be the alcohol of 15.97mol / L, above-mentioned water-based adhesive is made of zinc phosphate 36 parts by weight, chlorinated 45 parts by weight of ammonium, 15 parts by weight of polyethylene glycol, 14 parts by weight of butyl cyanoacrylate, and 7 parts by weight of ammonium persulfate; meanwhile, configure Pd, Ni, Cr, vanadium-coated nic...
Embodiment 2
[0044] For 2.1 parts of N, 51 parts of Fe, 2.7 parts of Ni, 28 parts of Cr, 25 parts of Mn, 1.6 parts of Mo, 0.6 parts of C, 0.05 parts of S, 0.08 parts of P and 0.8 parts of Si (by weight) When the steel is vacuum brazed, use 28 parts of Pd, 39 parts of Ni, 39 parts of Cr, 5.8 parts of vanadium-nickel-coated graphene, 15 parts of Mn, 11 parts of Re, 9 parts of Si and 5.5 parts of B (by weight) Composition of solder. The solder is prepared as follows:
[0045] The first step, utilize FAD5001 electronic balance, weigh 30g distilled water, 30g water-based binder and 12g acetone, 13g molar concentration be the alcohol of 15.97mol / L, above-mentioned water-based binder is made of 24 parts by weight of zinc phosphate, chlorinated 61 parts by weight of ammonium, 23 parts by weight of polyethylene glycol, 22 parts by weight of butyl cyanoacrylate, and 11 parts by weight of ammonium persulfate; meanwhile, configure Pd, Ni, Cr, vanadium-nickel graphene, Mn, Re in proportion , Si, B br...
Embodiment 3
[0052] For 1.5 parts of N, 58 parts of Fe, 2.3 parts of Ni, 25.5 parts of Cr, 22 parts of Mn, 1.4 parts of Mo, 0.4 parts of C, 0.035 parts of S, 0.065 parts of P and 0.65 parts of Si (by weight) When the steel is vacuum brazed, use 26.5 parts of Pd, 42.5 parts of Ni, 37.5 parts of Cr, 4.3 parts of vanadium-nickel-coated graphene, 13.5 parts of Mn, 9 parts of Re, 7.5 parts of Si and 3.75 parts of B (by weight) The brazing filler metal of composition, this kind brazing filler metal adopts following method to prepare:
[0053] The first step, utilizing FAD5001 electronic balance, weighing 22.5g distilled water, 22.5g water-based binder and 8.5g acetone, 9.5g molar concentration is the alcohol of 15.97mol / L, and above-mentioned water-based binder is made of zinc phosphate 30 Parts by weight, 53 parts by weight of ammonium chloride, 19 parts by weight of polyethylene glycol, 18 parts by weight of butyl cyanoacrylate, and 9 parts by weight of ammonium persulfate; meanwhile, configur...
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