A corrosion-resistant metal coating for differential 20crmnti steel passive helical gears
A metal coating and helical gear technology, applied in metal material coating process, coating, furnace, etc., can solve the problems of inability to achieve corrosion resistance of transmission parts, weak corrosion resistance of metal coatings, and pores of anti-corrosion coatings High anti-peeling strength, low porosity and high density can be achieved
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Embodiment 1
[0022] The invention provides a corrosion-resistant metal coating for a 20CrMnTi steel passive helical gear of a differential. The chemical element composition and mass percentage of the 20CrMnTi steel passive helical gear are: C: 0.18%-0.22%, Si: 0.25% -0.3%, Mn: 0.5%-0.9%, Cr: 1.2%-2.0%, Ti: 0.02%-0.08%, P<0.04%, S<0.04%, the balance is iron; the corrosion-resistant metal The chemical element composition and mass percentage of the coating are: C: 0.0%, Cr: 20%, Ni: 12.25%, Al: 1.5%, Ti: 0.1%, Cu: 0.3%, Mg: 0.13%, Re : 0.3%, La: 0.32%, Ce: 0.2%, and the balance is iron; the treatment process of the corrosion-resistant metal coating is carried out in the following steps:
[0023] Step S1: Prepare powder core wire material: mix C, Cr, Ni, Al, Ti, Cu, Mg, Re, La, Ce through powder mixing, molding, and drawing to obtain powder core wire material;
[0024] Step S2: Surface treatment: after the differential 20CrMnTi steel passive helical gear has been quenched in two stages, put i...
Embodiment 2
[0028] The invention provides a corrosion-resistant metal coating for a 20CrMnTi steel passive helical gear of a differential. The chemical element composition and mass percentage of the 20CrMnTi steel passive helical gear are: C: 0.18%-0.22%, Si: 0.25% -0.3%, Mn: 0.5%-0.9%, Cr: 1.2%-2.0%, Ti: 0.02%-0.08%, P<0.04%, S<0.04%, the balance is iron; the corrosion-resistant metal The chemical element composition and mass percentage of the coating are: C: 0.08%, Cr: 30%, Ni: 15.43%, Al: 3%, Ti: 0.2%, Cu: 0.5%, Mg: 0.15%, Re : 0.5%, La: 0.38%, Ce: 0.52%, and the balance is iron; the treatment process of the corrosion-resistant metal coating is carried out as follows:
[0029] Step S1: Prepare powder core wire material: mix C, Cr, Ni, Al, Ti, Cu, Mg, Re, La, Ce through powder mixing, molding, and drawing to obtain powder core wire material;
[0030] Step S2: Surface treatment: After the differential 20CrMnTi steel passive helical gear has been quenched in two stages, it is placed in a...
Embodiment 3
[0034]The invention provides a corrosion-resistant metal coating for a 20CrMnTi steel passive helical gear of a differential. The chemical element composition and mass percentage of the 20CrMnTi steel passive helical gear are: C: 0.18%-0.22%, Si: 0.25% -0.3%, Mn: 0.5%-0.9%, Cr: 1.2%-2.0%, Ti: 0.02%-0.08%, P<0.04%, S<0.04%, the balance is iron; the corrosion-resistant metal The chemical element composition and mass percentage of the coating are: C: 0.07%, Cr: 25%, Ni: 14.25%, Al: 2%, Ti: 0.15%, Cu: 0.4%, Mg: 0.14%, Re : 0.4%, La: 0.35%, Ce: 0.35%, and the balance is iron; the treatment process of the corrosion-resistant metal coating is carried out in the following steps:
[0035] Step S1: Prepare powder core wire material: mix C, Cr, Ni, Al, Ti, Cu, Mg, Re, La, Ce through powder mixing, molding, and drawing to obtain powder core wire material;
[0036] Step S2: Surface treatment: After the differential 20CrMnTi steel passive helical gear has been quenched in two stages, it is...
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