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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

Active Publication Date: 2017-03-15
南京创贝高速传动机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of society, gearboxes play an important role in industry, and there are many varieties. Many gearboxes need to operate for a long time. , causing serious corrosion to the inner surface of the gearbox, greatly reducing the strength of the gearbox, seriously affecting its service life, increasing safety hazards, increasing maintenance costs, and not conducive to the long-term development of the industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a corrosion-resistant metal coating for the inner surface of a gearbox, the composition of the corrosion-resistant metal coating is: 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 melting furnace, increase the temperature to 650°C, keep it for 1 hour, Then increase the temperature to 1550°C, keep it warm for 2 hours, 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. The tempering temperature is 620°C, hold for 30 minutes, then air cool to 320°C, then water cool to 160°C...

Embodiment 2

[0028]This embodiment provides a corrosion-resistant metal coating for the inner surface of a gearbox, the composition of the corrosion-resistant metal coating is: 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 warm for 4 hours, 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, hold for 45 minutes, then air cool to 350°C, then water cool to 180...

Embodiment 3

[0036] This embodiment provides a corrosion-resistant metal coating for the inner surface of a gearbox, the composition of the corrosion-resistant metal coating is: 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 melting furnace, increase the temperature to 655°C and keep it for 2 hours, Then increase the temperature to 1560°C, keep it warm for 3 hours, 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. The tempering temperature is 625°C, hold for 36 minutes, then air cool to 340°C, then water cool to 1...

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Abstract

The invention discloses a corrosion resistant metal coating for a gear box inner surface. The corrosion resistant metal coating comprises the following components by mass percentage: 0.03-0.05% of C, 0.45-0.48% of Mn, 12.76-12.79% of Cr, 6.12-6.15% of Ni, 0.16-0.18% of Mg, 0.22-0.25% of Mo, 0.27-0.29% of Co, 0.26-0.28% of V, 0.22-0.24% of Ti, 0.21-0.23% of Na, 0.12-0.15% of Ga, 0.32-0.35% of Eu, 0.12-0.14% of Lu, 0.62-0.68% of La, and the balance Fe.

Description

technical field [0001] The invention relates to a gear box, in particular to a corrosion-resistant metal coating for the inner surface of the gear box. Background technique [0002] With the development of society, gearboxes play an important role in industry, and there are many varieties. Many gearboxes need to operate for a long time. , causing serious corrosion to the inner surface of the gearbox, greatly reducing the strength of the gearbox, seriously affecting its service life, increasing safety hazards, increasing maintenance costs, and not conducive to the long-term development of the industry. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a corrosion-resistant metal coating for the inner surface of the gearbox, which can not only increase the overall strength of the gearbox, but also improve the ability of corrosion resistance and high temperature resistance in view of the above shortcomings of the prio...

Claims

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Application Information

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IPC IPC(8): C22C38/04C22C38/44C22C38/52C22C38/46C22C38/50C09J4/06C09J4/02C09J11/04C09J11/06B05D5/00
CPCB05D5/00B05D2350/60C09J4/00C09J4/06C09J11/04C09J11/06C22C38/002C22C38/005C22C38/04C22C38/44C22C38/46C22C38/50C22C38/52
Inventor 陆树根
Owner 南京创贝高速传动机械有限公司
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