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Spraying method for inner wall of water tank of car

A technology for automotive water tanks and inner surfaces, applied in coatings, devices for coating liquids on surfaces, etc., can solve problems such as the impact on the structure and performance of automotive water tanks, and achieve the effects of improved solubility, improved pretreatment capabilities, and simple operating processes

Inactive Publication Date: 2016-04-13
WUXI YICHEN MOLD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because only the film is sprayed on its inner surface, and the protective film substrate is not used, the film on the surface of the sprayed product will gradually fade after being used for a period of time, which will have a great impact on the structural performance of the automobile water tank.

Method used

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Examples

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Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be described in more detail below in conjunction with examples. However, the content of the embodiments is only an example and description of the present invention. Those skilled in the art can make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the principles of the invention. Conception or beyond the scope defined in the claims shall belong to the protection scope of the present invention.

[0017] 1. Composition of pretreatment agent

[0018] 20 parts of polyacrylate emulsion, 25 parts of furfural resin, 1.5 parts of hydrochloric acid, 0.3 parts of uronic acid, 1 part of potassium chloride and 40 parts of water.

[0019] Two, the preparation method of pretreatment agent is:

[0020] First add 25 parts of furfural resin and 15 parts of water to the container, stir for 5 minutes; then slowly add 1.5 parts of hydrochloric acid, stir while adding,...

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Abstract

The invention relates to the technical field of machining of parts of a car, in particular to a spraying method for the inner wall of a water tank of the car. A pretreating agent is sprayed to the inner surface of the water tank of the car, and a protection film with the thickness ranging from 0.5 mm to 2 mm is formed; the water tank of the car is dried again, and the drying temperature is 80 DEG C; a Teflon nano-film with the thickness ranging from 0.1 micrometer to 0.5 micrometer is then sprayed to the surface of the protection film in the water tank of the car; and the nano-film is put into a constant temperature furnace to be dried for 5 hours, and the temperature in the constant temperature furnace is 55 DEG C. According to the spraying method, the operation process is concise, then the steps of spray pretreatment through the pretreating agent and spraying are executed, and the formula of the pretreating agent and the spraying process parameters are reasonably designed, so that the adhesive force of the Teflon nano-film is higher, and the service life of the product is prolonged.

Description

technical field [0001] The invention relates to the technical field of auto parts processing, in particular to a method for spraying the inner wall of an auto water tank. Background technique [0002] In order to better improve the structural performance of the automobile water tank and prolong its service life, it is mainly sprayed with a nano-film on its inner wall to provide its structural strength. However, because only the film is sprayed on the inner surface, and the protective film substrate is not used, the film on the surface of the sprayed product will gradually fade after a period of use, which will have a great impact on the structural performance of the automobile water tank. Contents of the invention [0003] In view of the technical problems existing in the prior art, the object of the present invention is to provide a method for spraying the inner wall of an automobile water tank. To achieve the above object, the present invention adopts the following techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/00B05D7/22
CPCB05D7/22B05D7/544B05D7/546B05D2301/00B05D2301/30B05D2401/21B05D2502/00B05D2506/15B05D2420/01B05D2420/02
Inventor 钱根来
Owner WUXI YICHEN MOLD TECH
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