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A heat treatment method for a drum gear coupling of a wind power generator

A technology of wind power generators and heat treatment methods, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve problems such as nitriding and deformation requirements, and achieve the effects of improving corrosion resistance, improving corrosion resistance, and preventing cooling deformation

Active Publication Date: 2019-12-27
厦门真冈热处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are two technical problems in the nitriding of the wind turbine drum gear coupling: 1. Partial nitriding of the teeth, and the deformation requirements are very strict; 2. Long-term nitriding, corrosion-resistant compound layer (White layer) must reach a certain thickness, and there is no brittle tendency

Method used

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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] This embodiment discloses a heat treatment method for a drum gear coupling of a wind power generator, which includes the following steps:

[0023] a. Pre-treatment: apply anti-nitriding paint to the non-nitrided area other than the tooth area of ​​the coupling;

[0024] b. Nitriding treatment: put the coupling into a nitriding furnace, and carry out nitriding treatment on the tooth area of ​​the coupling, wherein the nitriding temperature is 510±10°C, and the nitriding time is 72 ±2h; Preferably, the nitriding temperature is 510°C, and the nitriding time is 72h; and...

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Abstract

The invention discloses a heat treatment method for a drum gear coupling of a wind driven generator. The method includes steps: a, pretreatment, to be more specific, coating a non-nitridation area, except for a toothed area, of the coupling with nitriding-proof coating; b, nitriding treatment, to be more specific, mounting the coupling in a nitriding furnace, and subjecting the toothed area of thecoupling to nitriding treatment at 510+ / -10 DEG C for 72+ / -2h; c, cooling treatment, to be more specific, cooling the coupling to 400+ / -10 DEG C after nitriding treatment, and moving the coupling outof the nitriding furnace to cool naturally. Therefore, deformation is effectively reduced, corrosion resistance, abrasion resistance and fatigue resistance are greatly improved, and reliability and service life of the gear coupling are guaranteed.

Description

technical field [0001] The invention relates to a heat treatment method for a drum gear coupling of a wind power generator. Background technique [0002] As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. However, most of the wind farms are located in remote areas, and usually face various harsh climate and environmental conditions, which makes wind turbine components prone to rust, salt corrosion, aging, etc., and affects the service life of wind turbine components. [0003] The drum-shaped gear coupling is a key component of the wind turbine. It belongs to the shaft transmission system for power transmission. Its reliability and durability depend on the wear resistance, medium corrosion resistance and fatigue resistance. In the prior art, there are two technical problems in the nitriding of the wind turbine drum gear coupling: 1. Partial nitriding of the teeth, and the deformation requirements are very stric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/26C23C8/04C21D9/00
Inventor 胡大维张雪梅胡敬华
Owner 厦门真冈热处理有限公司