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Method for treating surface before spraying paint to front edge coated iron of paddle made of composite material

A composite material and front surface technology, which is applied to the device for coating liquid on the surface, pretreatment surface, coating and other directions, can solve problems such as hazard, achieve low environmental hazard, strong bonding force, and avoid paint peeling off. Effect

Inactive Publication Date: 2017-07-21
HARBIN
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] Purpose of the present invention: the purpose of the present invention is to propose a composite material blade leading edge iron-clad spray paint for the disadvantage of using 08416 corrosion wash primer for the existing surface treatment before the front edge of the main blade is coated with iron. The method of front surface treatment

Method used

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specific Embodiment approach

[0017] Specific embodiments: the present invention will be further described in detail below.

[0018] 1) A brief description of the iron-clad painting process for the leading edge of the main blade:

[0019] Organic solvent degreasing→isolation→AC131→priming→drying→sanding→cleaning→finishing→drying→inspection

[0020] 2) AC131 process description

[0021] ① Method Ⅰ: Spraying

[0022] a. Using a spray gun with AC131 solution, allow excess solution to run off the surface and wet the surface of the part, ensuring that all surfaces are continuously wetted for at least 1 minute.

[0023] b. For large parts, treat smaller areas separately with the shortest coating time. Gradually cover the entire part to ensure that the treated surface does not dry out during the spraying process.

[0024] c. Allow the coated part to drain for 3-10 minutes. Do not dry areas that can drain freely. If necessary, use one of the following two methods to remove excess solution that does not drain...

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Abstract

The invention discloses a method for treating a surface before spraying paint to front edge coated iron of a paddle made of a composite material. At present, 08416 wash primer is used for surface treatment before paint is sprayed to the front edge coated iron of a main paddle, the primer is phosphate salt and is harmful on environment, binding force between a generated phosphate film layer and a primer layer is relatively weak, and a paint layer dropping phenomenon appears in a using process. According to the method disclosed by the invention, the front edge coated iron of the paddle is treated by an ACl31 sol-gel solution, binding force between the generated film layer and the paint layer is relatively strong, the paint layer dropping defect is avoided, and the solution is an alcohol acid type and has little harm to environment. The sol-gel solution (AC131) covers the surface of the front edge coated iron before paint is sprayed to the front edge coated iron of the main paddle, and a conversion film is formed on the surface of the front edge coated iron through hydrolysis and polymerization reaction, so that the binding force between the front edge coated iron and the paint layer is strengthened.

Description

technical field [0001] The invention belongs to the field of composite material forming and repairing, and relates to a method for treating the surface of the leading edge of a composite material paddle before iron coating and painting. Background technique [0002] 08416 etch primer is used for the surface treatment of the leading edge of the main propeller before iron coating and painting. This primer contains phosphating salt, which is harmful to the environment. There is a phenomenon that the paint layer is peeling off. [0003] The method of the present invention adopts AC131 sol-gel solution to treat the iron coating on the front edge of the blade, and the resulting film layer has a strong bonding force with the paint layer, which avoids the defect that the paint layer falls off, and the solution is an alkyd, which is less harmful to the environment . Contents of the invention [0004] Purpose of the present invention: the purpose of the present invention is to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/32B05D7/00B05D7/14B05D3/10
CPCB05D1/325B05D3/102B05D7/14B05D7/544
Inventor 李华毛英坤宋文娟刘成浩
Owner HARBIN
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