CN111118580A - Electrophoresis process of automobile parts - Google Patents

Abstract

The invention discloses an electrophoresis process of automobile parts, which comprises the following steps: step one, hanging the cable on line, and performing high-pressure hot water showering; step two, degreasing; step three, performing hot water showering again; fourthly, drying by hot air, and carrying out phosphating treatment after drying and cooling to room temperature; fifthly, carrying out third hot water showering, and then drying by hot air; step six, performing anodic electrophoresis treatment; seventhly, cleaning the automobile parts subjected to electrophoresis treatment through an ultrafilter; step eight, soaking in pure water, and spraying the pure water; and step nine, drying by hot air. The electrophoresis process for the automobile parts has the advantages that the surface coatings of the automobile parts coated by the electrophoresis process are strong in adhesive force, uniform in coating, small in environmental pollution and low in energy consumption.

Description

Electrophoresis process of automobile parts

Technical Field

The invention relates to an electrophoresis process of an automobile part.

Background

At present, the problems encountered in the electrophoresis process of the automobile parts are mainly as follows: high energy consumption, large pollution, poor electrophoretic paint quality and the like. Therefore, the electrophoretic process needs to be improved to achieve the purposes of reducing energy consumption, reducing pollution and improving the quality of electrophoretic paint.

In addition, most surfaces of automobile parts are uneven, and the electrophoresis of the areas with grooves or through holes is easy to cause the condition of insufficient adhesive force of the coating, so that the aim of solving the problem is also needed to be achieved by improving the electrophoresis process.

Disclosure of Invention

The invention aims to provide an electrophoresis process of automobile parts, and aims to solve the problems.

In order to achieve the purpose, the technical scheme of the invention is to design an electrophoresis process of automobile parts, which comprises the following steps:

step one, hanging the automobile parts on an electrophoresis line, and performing high-pressure showering on the surfaces of the automobile parts by using hot water at 70-90 ℃, wherein the showering pressure is 0.05-0.1 MPa, and the showering time is 0.5-1 min;

soaking the automobile parts in degreasing liquid for degreasing, wherein the degreasing time is 8-10 min, and the temperature is 70-80 ℃;

thirdly, performing hot water showering on the automobile parts for 5-10 min at the showering pressure of 0.5-1 MPa;

drying the automobile parts by adopting hot air at 70-80 ℃, drying and cooling to room temperature, and then putting the automobile parts into a phosphating tank for phosphating for 2-3 min;

fifthly, carrying out third hot water showering on the automobile parts, wherein the showering pressure is 2-3 Mpa, the showering time is 2-3 min, and then drying the automobile parts by adopting hot air at 70-80 ℃;

step six, immersing the automobile parts into an electrophoresis tank for carrying out anodic electrophoresis treatment, controlling the pH value to be 5-6.5, controlling the color ratio of an electrophoresis solution to be 12-15%, the solid component of the electrophoresis solution to be 10-12%, the conductivity of the electrophoresis solution to be 1000-1300 um/cm, the temperature of the electrophoresis solution to be 30-40 ℃, the working voltage to be 220V and the electrophoresis time to be 5-10 min;

seventhly, cleaning the automobile parts subjected to electrophoresis treatment through an ultrafilter; the cleaning time is 5-10 min;

step eight, placing the automobile parts into pure water for soaking for 5min, and then spraying the surfaces of the automobile parts with the pure water, wherein the spraying pressure is 0.05-0.1 Mpa, and the spraying time is 2-3 min;

and step nine, carrying out hot air blow drying on the automobile parts at the temperature of 70-80 ℃.

The invention has the advantages and beneficial effects that: the electrophoresis process for the automobile parts has the advantages that the surface coatings of the automobile parts coated by the electrophoresis process are strong in adhesive force, uniform in coating, small in environmental pollution and low in energy consumption.

Detailed Description

The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example (b):

an electrophoresis process of an automobile part comprises the following steps:

step one, hanging the automobile parts on an electrophoresis line, and performing high-pressure showering on the surfaces of the automobile parts by using hot water at 70-90 ℃, wherein the showering pressure is 0.05-0.1 MPa, and the showering time is 0.5-1 min;

soaking the automobile parts in degreasing liquid for degreasing, wherein the degreasing time is 8-10 min, and the temperature is 70-80 ℃;

thirdly, performing hot water showering on the automobile parts for 5-10 min at the showering pressure of 0.5-1 MPa;

drying the automobile parts by adopting hot air at 70-80 ℃, drying and cooling to room temperature, and then putting the automobile parts into a phosphating tank for phosphating for 2-3 min;

fifthly, carrying out third hot water showering on the automobile parts, wherein the showering pressure is 2-3 Mpa, the showering time is 2-3 min, and then drying the automobile parts by adopting hot air at 70-80 ℃;

step six, immersing the automobile parts into an electrophoresis tank for carrying out anodic electrophoresis treatment, controlling the pH value to be 5-6.5, controlling the color ratio of an electrophoresis solution to be 12-15%, the solid component of the electrophoresis solution to be 10-12%, the conductivity of the electrophoresis solution to be 1000-1300 um/cm, the temperature of the electrophoresis solution to be 30-40 ℃, the working voltage to be 220V and the electrophoresis time to be 5-10 min;

seventhly, cleaning the automobile parts subjected to electrophoresis treatment through an ultrafilter; the cleaning time is 5-10 min;

step eight, placing the automobile parts into pure water for soaking for 5min, and then spraying the surfaces of the automobile parts with the pure water, wherein the spraying pressure is 0.05-0.1 Mpa, and the spraying time is 2-3 min;

and step nine, carrying out hot air blow drying on the automobile parts at the temperature of 70-80 ℃.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (1)

1. The electrophoresis process of the automobile parts is characterized by comprising the following steps:

step one, hanging the automobile parts on an electrophoresis line, and performing high-pressure showering on the surfaces of the automobile parts by using hot water at 70-90 ℃, wherein the showering pressure is 0.05-0.1 MPa, and the showering time is 0.5-1 min;

soaking the automobile parts in degreasing liquid for degreasing, wherein the degreasing time is 8-10 min, and the temperature is 70-80 ℃;

thirdly, performing hot water showering on the automobile parts for 5-10 min at the showering pressure of 0.5-1 MPa;

drying the automobile parts by adopting hot air at 70-80 ℃, drying and cooling to room temperature, and then putting the automobile parts into a phosphating tank for phosphating for 2-3 min;

fifthly, carrying out third hot water showering on the automobile parts, wherein the showering pressure is 2-3 Mpa, the showering time is 2-3 min, and then drying the automobile parts by adopting hot air at 70-80 ℃;

step six, immersing the automobile parts into an electrophoresis tank for carrying out anodic electrophoresis treatment, controlling the pH value to be 5-6.5, controlling the color ratio of an electrophoresis solution to be 12-15%, the solid component of the electrophoresis solution to be 10-12%, the conductivity of the electrophoresis solution to be 1000-1300 um/cm, the temperature of the electrophoresis solution to be 30-40 ℃, the working voltage to be 220V and the electrophoresis time to be 5-10 min;

seventhly, cleaning the automobile parts subjected to electrophoresis treatment through an ultrafilter; the cleaning time is 5-10 min;

step eight, placing the automobile parts into pure water for soaking for 5min, and then spraying the surfaces of the automobile parts with the pure water, wherein the spraying pressure is 0.05-0.1 Mpa, and the spraying time is 2-3 min;

and step nine, carrying out hot air blow drying on the automobile parts at the temperature of 70-80 ℃.