Corrosion resistant metal coating for gear box inner surface
A metal coating, corrosion-resistant technology, used in the field of gearboxes, can solve the problems of corrosion of the inner surface of the gearbox, reduce the strength of the gearbox, increase safety hazards, etc. Effect
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[0019] Example 1
[0020] The present embodiment provides a corrosion-resistant metal coating for the inner surface of a gearbox. The components of the corrosion-resistant metal coating are as follows by mass percentage: C: 0.03%, Mn: 0.45%, Cr: 12.76%, Ni: 6.12%, Mg: 0.16%, Mo: 0.22%, Co: 0.27%, V: 0.26%, Ti: 0.22%, Na: 0.21%, Ga: 0.12%, Eu: 0.32%, Lu: 0.12%, La: 0.62%, the balance is Fe;
[0021] The treatment process of the corrosion-resistant metal coating is carried out in the following steps:
[0022] Step 1: Put C, Mn, Cr, Ni, Mg, Mo, Co, V, Ti, Na, Ga, Eu, Lu, La and Fe into the smelting furnace, increase the temperature to 650°C, keep it for 1 hour, Then increase the temperature to 1550°C, keep it for 2 hours, and then use air cooling to cool to 430°C at a cooling rate of 8°C / s, and then air-cool to room temperature to obtain a metal body;
[0023] Step 2: Perform tempering heat treatment on the metal body in step 1, at a tempering temperature of 620°C, holding for 30 minut...
Example Embodiment
[0027] Example 2
[0028] This embodiment provides a corrosion-resistant metal coating for the inner surface of a gearbox. The components of the corrosion-resistant metal coating are as follows by mass percentage: C: 0.05%, Mn: 0.48%, Cr: 12.79%, Ni: 6.15%, Mg: 0.18%, Mo: 0.25%, Co: 0.29%, V: 0.28%, Ti: 0.24%, Na: 0.23%, Ga: 0.15%, Eu: 0.35%, Lu: 0.14%, La: 0.68%, the balance is Fe;
[0029] The treatment process of the corrosion-resistant metal coating is carried out in the following steps:
[0030] Step 1: Put C, Mn, Cr, Ni, Mg, Mo, Co, V, Ti, Na, Ga, Eu, Lu, La and Fe into the smelting furnace, increase the temperature to 660°C, keep it for 3 hours, Then increase the temperature to 1580°C, keep it for 4 hours, and then use air cooling to cool to 440°C at a cooling rate of 10°C / s, and then air-cool to room temperature to obtain a metal body;
[0031] Step 2: Perform tempering heat treatment on the metal body in step 1. The tempering temperature is 630°C, the temperature is kept fo...
Example Embodiment
[0035] Example 3
[0036] This embodiment provides a corrosion-resistant metal coating for the inner surface of a gearbox. The components of the corrosion-resistant metal coating are as follows by mass percentage: C: 0.04%, Mn: 0.48%, Cr: 12.78%, Ni: 6.13%, Mg: 0.17%, Mo: 0.24%, Co: 0.28%, V: 0.27%, Ti: 0.23%, Na: 0.22%, Ga: 0.14%, Eu: 0.33%, Lu: 0.13%, La: 0.65%, the balance is Fe;
[0037] The treatment process of the corrosion-resistant metal coating is carried out in the following steps:
[0038] Step 1: Put C, Mn, Cr, Ni, Mg, Mo, Co, V, Ti, Na, Ga, Eu, Lu, La and Fe into the smelting furnace, increase the temperature to 655°C, keep it for 2 hours, Then increase the temperature to 1560°C, keep it for 3 hours, and then use air cooling to cool to 436°C at a cooling rate of 9°C / s, and then air-cool to room temperature to obtain a metal body;
[0039] Step 2: Perform tempering heat treatment on the metal body in step 1, at a tempering temperature of 625°C, holding for 36 minutes, th...
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