Novel environment-friendly self-healing composite coating of wind power equipment and spraying method

A technology for wind power equipment and composite coating, which is applied in the direction of coating, metal material coating process, fusion spraying, etc. low problems, to achieve the effect of excellent wear resistance, good function and low porosity

Active Publication Date: 2018-10-09
浙江天泉表面技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The self-healing ability of this coating is low, and the transition area between the coating and the workpiece does not provide a specific transition layer material, so the transition area does not necessarily relieve the stress on the interface, resulting in cracks and voids in the working layer. Due to the low self-healing ability, the coating will be damaged very quickly

Method used

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  • Novel environment-friendly self-healing composite coating of wind power equipment and spraying method
  • Novel environment-friendly self-healing composite coating of wind power equipment and spraying method
  • Novel environment-friendly self-healing composite coating of wind power equipment and spraying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A new type of environmentally friendly self-healing composite coating for wind power equipment, including a transition layer and a working layer; the formulation of the working layer includes the following raw materials in mass percentages: C 0.1%, B 3.5%, Si 1.0%, Cr 17.0%, Fe 1.0%, MoS 2 13.0%, and the balance is Ni; the formula of the transition layer includes the following raw materials in mass percentage: Ni 70%, and the balance is Al.

[0056] The particle size of the raw material is 10-45μm.

[0057] A novel method for spraying composite coatings of environmentally friendly self-healing wind power equipment, including the following spraying steps:

[0058] S1. Pretreatment of the workpiece: use dry oil-free angular iron sand for sandblasting;

[0059] S2. Spraying the transition layer: Weigh the formula of the transition layer and fully mix it, and use the HVOF supersonic flame spraying equipment to spray the transition layer on the surface of the workpiece; t...

Embodiment 2

[0066] A new type of environmentally friendly self-healing composite coating for wind power equipment, including a transition layer and a working layer; the formulation of the working layer includes the following raw materials in mass percentages: C 1.0%, B 0.5%, Si 4.5%, Cr 10.0%, Fe 3.0%, MoS 2 8.0%, ceramic powder 3%, the balance is Ni; the formula of the transition layer includes the following raw materials in mass percentage: Ni 90%, the balance is Al.

[0067] The particle size of the raw material is 10-45μm.

[0068] The particle size of the ceramic powder is 15-40μm.

[0069] A novel method for spraying composite coatings of environmentally friendly self-healing wind power equipment, including the following spraying steps:

[0070] S1. Pretreatment of the workpiece: use dry oil-free angular iron sand for sandblasting;

[0071] S2. Spraying the transition layer: Weigh the formula of the transition layer and mix well, and use HVOF supersonic flame spraying equipment ...

Embodiment 3

[0078] A new type of environmentally friendly self-healing composite coating for wind power equipment, including a transition layer and a working layer; the formulation of the working layer includes the following raw materials in mass percentages: C 0.6%, B 2.0%, Si 2.8%, Cr 13.5%, Fe 2.0%, MoS 2 10.5%, ceramic powder 10%, the balance is Ni; the formula of the transition layer includes the following raw materials in mass percentage: Ni 80%, the balance is Al.

[0079] The particle size of the raw material is 10-45μm.

[0080] The particle size of the ceramic powder is 15-40μm.

[0081] A novel method for spraying composite coatings of environmentally friendly self-healing wind power equipment, including the following spraying steps:

[0082] S1. Pretreatment of the workpiece: use dry oil-free angular iron sand for sandblasting;

[0083] S2. Spraying the transition layer: Weigh the formula of the transition layer and mix well, and use HVOF supersonic flame spraying equipmen...

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Abstract

The invention discloses a novel environment-friendly self-healing composite coating of wind power equipment and a spraying method and relates to the technical field of composite coatings. The composite coating comprises a transition layer and a working layer; the formula of the working layer contains the following raw materials including, by mass, 0.1-1.0% of C, 0.5-3.5% of B, 1.0-4.5% of Si, 10.0-17.0% of Cr, 1.0-3.0% of Fe, 8.0-13.0% of MoS2, and the balance Ni; and the formula of the transition layer contains the following raw materials including, by mass, 70-90% of Ni, and the balance Al.The novel environment-friendly self-healing composite coating is good in lubricating property, low in friction coefficient, capable of achieving self-healing, low in porosity, free of VOC pollution, good in abrasion resistance and high in bonding strength.

Description

technical field [0001] The invention relates to the technical field of composite coatings, in particular to a novel composite coating and a spraying method for environmentally friendly self-healing wind power equipment. Background technique [0002] Wind turbines are faced with atmospheric corrosion environment (divided into C1 very low, C2 low, C3 medium, C4 high, C5-1 very high (industrial), C5-M very high (marine) (6 levels), water and soil corrosion Environment (Im1 fresh water, Im2 seawater or salt water, Im3 soil). This is the main basis for the current anti-corrosion design of the metal surface of wind turbines. The wear stress (abrasion) in the atmosphere may be due to the particles carried by the wind (such as sand grains) rubbing the steel structure, The surface of the blade is damaged, and the other is the impact damage of larger objects such as water droplets, hail, sandstorms and even birds. This is more common and obvious on the windward side and bottom of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/03C22C19/05C22C32/00C23C4/129C23C4/06C23C4/08
Inventor 崔琛焕李祖欣
Owner 浙江天泉表面技术有限公司
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