Forming method of waterproof coating under negative pressure environment

A molding method and waterproof coating technology, which can be applied to spray devices, spray booths, etc., can solve problems such as easy generation of air bubbles, and achieve the effects of accelerating escape speed, significant practical value, and beneficial technical effects.

Active Publication Date: 2019-05-07
ANHUI BUILDING ENG QUALITY SUPERVISION & TESTING STATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is mechanical spraying or manual spraying, defects such as air bubbles are prone to occur.

Method used

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  • Forming method of waterproof coating under negative pressure environment

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Embodiment Construction

[0011] Such as figure 1 As shown, the molding method of the present invention is applied to negative pressure spraying equipment, which comprises a sealed housing 10, a heat insulating board 15 is arranged inside the sealed housing 10, and the inner space of the sealed housing 10 is isolated The hot plate 15 is divided into a normal pressure space 11 and a negative pressure space 12. The negative pressure space 12 contains a stage 14 on which a test piece 30 is placed, and a movable Spraying mechanism 22, described spraying mechanism 22 is provided with feeding pipe 21, described spraying mechanism 22 is connected with storage tank 20 through feeding pipe 21, described negative pressure space 12 bottom is provided with vacuum pump 50, wherein feeding pipe 21 adopts Expandable and deformed hose, paint is stored in the material storage tank 20, in order to ensure uniform mixing of the paint, the paint in the material storage tank 20 is always in a stirring state, the vacuum pump...

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Abstract

The invention relates to a method for forming a waterproof coating in a negative pressure environment, and belongs to the technical field of spraying equipment. The method comprises the following steps: step 1, stirring the coating, namely, stirring the coating in a storing tank; and step 2, coating under negative pressure, namely, starting a vacuum pump to create the negative pressure environment for a negative pressure space, and coating the coating on a test part through a spraying mechanism. According to the technical scheme, the method has the advantages that the coating is stored in the storing tank and is stirred all the time so as to ensure uniform mixing; the vacuum pump can provide the negative pressure state to the negative pressure space, so that the escape speed of bubbles in a coating layer on the surface of the test part is increased, and as a result, the deflect of bubbles in the coating can be reduced. The method is beneficial in technological effect and obvious in practical value.

Description

technical field [0001] The invention relates to a forming method of a waterproof paint under a negative pressure environment, and belongs to the technical field of spraying equipment. Background technique [0002] Spraying is a coating method in which spray guns or disc atomizers are dispersed into uniform and fine droplets by means of pressure or centrifugal force and applied to the surface of the object to be coated. It can be divided into air spraying, airless spraying, electrostatic spraying and various derived methods of the above basic spraying forms, such as large flow and low pressure atomization spraying, thermal spraying, automatic spraying, multi-group spraying, etc. In the prior art, in order to improve the uniformity of coating thickness, mechanical spraying is generally used. However, whether it is mechanical spraying or manual spraying, defects such as air bubbles are prone to occur. For example, when the waterproof coating is sprayed on the formed test piec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B16/40B05B15/00B05B13/04
CPCB05B13/041B05B15/20B05B16/40
Inventor 李泽君董献国李亚南刘军付良庆庄菲鲁磊王雷胡晓曼
Owner ANHUI BUILDING ENG QUALITY SUPERVISION & TESTING STATION
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