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Method and equipment for coating dry-film lubricant

A dry film lubricant and coating technology, which is applied in coatings, devices for coating liquids on surfaces, pretreatment surfaces, etc., can solve problems such as uneven film thickness and flow marks on the coating surface

Active Publication Date: 2010-06-16
AVIC STANDARD PARTS MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a dry film lubricant coating method and equipment for fasteners and small parts. The specific method is to pour the parts dipped and coated with liquid dry film lubricant coating into the coating equipment described in the present invention. Rolling, leveling, and drying to achieve uniform coating on the surface of parts, and solve the problems of flow marks, knots and uneven film thickness on the coating surface caused by spraying or dipping of fasteners and small parts

Method used

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  • Method and equipment for coating dry-film lubricant
  • Method and equipment for coating dry-film lubricant

Examples

Experimental program
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Embodiment

[0016] Taking the implementation process of a nut product coated with dry film lubricant as an example, the steps are as follows:

[0017] 1. Parts loading basket;

[0018] 2. Immerse in dry film lubricant and shake up and down for 10-15 seconds;

[0019] 3. Lift out the parts basket to filter out the remaining liquid;

[0020] 4. Pour the parts into the drum (7), close the drum door (5), and turn the latch (6) to lock the drum door (5);

[0021] 5. Turn on the power switch of the motor (1), adjust the frequency regulator (12) to make the motor (1) roll at 4 rpm;

[0022] 6. Simultaneously turn on the switch (10) to feed compressed air at 60°C, and adjust the pressure to 0.2Mpa;

[0023] 7. After rolling for 12 minutes, unscrew the door buckle (6), open the barrel door (5), pour the parts into the stainless steel grid tray and spread them evenly

[0024] 8. Transfer to an electric oven for pre-curing (150°C, 30 minutes);

[0025] 9. Cool to room temperature to measure coa...

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Abstract

The invention provides a method and equipment for coating a dry-film lubricant, which is used for bolts with the bar diameter phi not greater than 10, threaded fasteners with the thread less than M10 and small parts. The method particularly comprises the following steps: pouring parts which are dipped and coated with liquid-state dry-film lubricant paint into the coating equipment for rolling and leveling, pouring out the parts on a mesh screen after a certain time, spreading, transferring into a baking oven, drying and solidifying. The problems of flow marks, knots and uneven thickness of a film layer on the surface of a coating caused by a spraying or dip coating process method are solved.

Description

technical field [0001] The dry film lubricant coating method and equipment of the present invention relate to the field of surface treatment of parts, and are mainly used in the coating of aviation and aerospace vehicle fasteners and small parts liquid dry film lubricants, and can also be used in other industries Coating of metal fasteners, small parts dry film lubricant. Background technique [0002] Fasteners and small parts used in aviation and aerospace vehicles are coated with dry film lubricants, which can increase the lubricity of the parts, reduce the friction coefficient, improve the performance of the assembly process, and prevent the parts from being screwed in many times during assembly or use. , Unscrewed and the matrix metals rub against each other and bond together. But so far, when domestically treating the surface of fasteners and small parts, spraying or dipping is usually used to apply dry film lubricants. Spraying is easy to cause thread damage to small-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/18B05D7/24B05D3/00
Inventor 何玉均
Owner AVIC STANDARD PARTS MFG
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