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Surface coating technique for evaporator of automobile air conditioning system

A technology for automotive air conditioning systems and surface coating, which is applied to devices for coating liquids on surfaces, special surfaces, pretreated surfaces, etc. , The evaporator has not undergone surface coating and other problems, to achieve the effect of synchronization of environmental benefits, large market and development space

Inactive Publication Date: 2018-08-03
上海旺烨静电喷涂技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common disadvantages now are: (1) The condenser and evaporator of the automobile air conditioner have not undergone special surface coating
(2) The existing air-conditioning system emits peculiar smell during the operation of the car
(3) In cold and hot environments and humid conditions, the corrosion resistance of evaporators and condensers decreases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A surface coating process for an evaporator of an automobile air-conditioning system, comprising the following production steps: (1) washing with water twice; (2) pickling; (3) washing with water twice; (4) drying the evaporator of the automobile air-conditioning system (5) dipping tank built-in hydrophilic paint is coated, and the pH value of hydrophilic paint is 10.2, and temperature is 18 ℃, and dipping time is 10s, and the solid content of hydrophilic paint is 0.1%; Drying with a drying machine, the rotating speed of the drying machine is 300 rpm, and the time is 7s; (7) cooling after curing in the curing channel, the curing temperature is 150 ° C, the time is 15 minutes, and the coating weight after curing is 2.2g; ( 8) Inspection and testing qualified; (9) Packaging.

Embodiment 2

[0023] A surface coating process for an evaporator of an automobile air-conditioning system, comprising the following production steps: (1) washing with water twice; (2) pickling; (3) washing with water twice; (4) drying the evaporator of the automobile air-conditioning system (5) dipping tank built-in hydrophilic coating is coated, and the pH value of hydrophilic coating is 10.9, and temperature is 22 ℃, and dipping time is 8s, and the solid content of hydrophilic coating is 0.3%; Drying with a drying machine, the rotating speed of the drying machine is 450 rpm, and the time is 4s; (7) cooling after curing in the curing channel, the curing temperature is 170 ° C, the time is 20 minutes, and the coating weight after curing is 3.0g; ( 8) Inspection and testing qualified; (9) Packaging.

Embodiment 3

[0025] A surface coating process for an evaporator of an automobile air-conditioning system, comprising the following production steps: (1) washing with water twice; (2) pickling; (3) washing with water twice; (4) drying the evaporator of the automobile air-conditioning system (5) dipping tank built-in hydrophilic paint is coated, and the pH value of hydrophilic paint is 11.5, and temperature is 28 ℃, and dipping time is 6s, and the solid content of hydrophilic paint is 0.63%; Drying with a dryer, the rotating speed of the dryer is 400 rpm, and the time is 6s; (7) cooling after curing in the curing channel, the curing temperature is 160 ° C, the time is 18 minutes, and the coating weight after curing is 3.5g; ( 8) Inspection and testing qualified; (9) Packaging.

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PUM

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Abstract

A surface coating technique for an evaporator of an automobile air conditioning system comprises the following production steps that the evaporator of the automobile air conditioning system is sequentially subjected to treatment that (1) washing is conducted; (2) acid pickling is conducted; (3) washing is conducted; (4) drying is conducted; (5) hydrophilic coating is placed in an impregnating tank, and the evaporator is coated; (6) the evaporator is spin-dried through a spin dryer; (7) the evaporator is cured in a curing channel and then cooled; (8) the evaporator is tested and detected to bequalified; and (9) the evaporator is packaged. Through the technical scheme, hydrophilic coating is applied to the automobile evaporator and an automobile condenser (or other radiator products), and an oxidation resistance film layer is generated to achieve the hydrophilic effect, resist to corrosion and oxidation and effectively restrain breeding of fungus matter, and the phenomenon that dust andparticles grow at deposits in an attached mode is eliminated; and the effective approach to improving the compartment environment is provided, and application of the technology develops a new automobile part treatment method for the automobile industry.

Description

technical field [0001] The invention relates to a surface coating process for an evaporator of an automobile air-conditioning system, belonging to the technical field of evaporator surface coating. Background technique [0002] The main cooling and heating assemblies of the automotive air conditioning system are welded with aluminum alloy and aluminum composite materials. With the extension of the running time of the car, fungi, dust, peculiar smell, anti-corrosion ability, and cooling and heating efficiency are easily generated on the aluminum surface. Decline. Based on the coating method, special coatings are used to load the evaporator products of the automotive air-conditioning system, thereby completely changing the odor emitted by the automotive air-conditioning system, preventing harmful fungi in a humid environment, the formation of solid dust deposits, and refreshing the environment in the car. important role. The common disadvantages are: (1) The condenser and ev...

Claims

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Application Information

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IPC IPC(8): B05D5/00B05D7/14B05D3/00B05D3/10
CPCB05D3/002B05D3/007B05D3/102B05D5/00B05D7/14B05D2202/25
Inventor 王丰罗意苹王好昌沈海霞
Owner 上海旺烨静电喷涂技术有限公司
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