阅读说明：本技术 一种铝单板涂装生产工艺 (Aluminum veneer coating production process ) 是由 杜建平 于 2020-06-12 设计创作，主要内容包括：本发明提出了一种铝单板涂装生产工艺,包括以下步骤：对铝单板进行脱脂；采用100～120目的砂粒对所述铝单板进行喷砂钝化,所述喷砂钝化的压力为0.4～0.6MPa,而后对所述铝单板进行冲洗、烘干；对经过钝化后的所述铝单板涂设底漆,所述底漆为掺杂有质量百分比0.5％～1％硬质纳米氧化物颗粒的水性涂料,而后进行烘干；在所述底漆远离所述铝单板的一面涂设面漆,而后进行烘干。本申请通过对铝单板喷砂钝化,并结合经过硬质纳米氧化物颗粒改性过的水性涂料作为底漆,能够有效地提高铝单板涂装的使用寿命。(The invention provides an aluminum veneer coating production process, which comprises the following steps: degreasing the aluminum veneer; carrying out sand blasting passivation on the aluminum veneer by using sand grains of 100-120 meshes, wherein the pressure of the sand blasting passivation is 0.4-0.6 MPa, and then washing and drying the aluminum veneer; coating a primer on the passivated aluminum veneer, wherein the primer is a water-based paint doped with hard nano oxide particles with the mass percentage of 0.5-1%, and then drying; and coating a finish on one surface of the primer, which is far away from the aluminum veneer, and then drying. The application can effectively prolong the service life of the aluminum veneer coating by carrying out sand blasting passivation on the aluminum veneer and combining the water-based coating modified by the hard nano oxide particles as the primer.)

1. The coating production process of the aluminum veneer is characterized by comprising the following steps of:

s101: degreasing the aluminum veneer;

s102: carrying out sand blasting passivation on the aluminum veneer by using sand grains of 100-120 meshes, wherein the pressure of the sand blasting passivation is 0.4-0.6 MPa, and then washing and drying the aluminum veneer;

s200: coating a primer on the passivated aluminum veneer, wherein the primer is a water-based paint doped with hard nano oxide particles with the mass percentage of 0.5-1%, and then drying;

s300: and coating a finish on one surface of the primer, which is far away from the aluminum veneer, and then drying.

2. The coating process for producing an aluminum veneer according to claim 1, wherein in step S200, the hard nano-oxide particles are SiO₂、TiO₂、ZnO、Al₂O₃At least one of (1).

3. The coating production process of an aluminum veneer according to claim 1, wherein in step S200, the water-based paint is a silicon-fluorine water-based paint.

4. The coating production process of an aluminum veneer according to claim 1, wherein in the step S300, the finish paint is provided in an electrostatic spraying manner.

5. The coating production process for an aluminum veneer according to claim 1, wherein in the step S102, the sandblasting speed of the sandblasting passivation is 0.8-1.2 m/S, and the sandblasting distance is 60-90 cm.

6. The coating production process of an aluminum veneer according to claim 1, wherein the drying temperature in step S200 is 80 to 130 ℃ and the drying time is 5 to 40 min.

7. The coating production process of an aluminum veneer according to claim 1, wherein in the step S200, the primer is disposed by spraying.

8. The coating production process of an aluminum veneer according to claim 1, wherein the step S101 comprises the steps of heating the degreasing agent to 60-70 ℃, spraying the surface of the aluminum veneer for 3-10 min, and washing the aluminum veneer with hot water at 60-70 ℃.

Technical Field

The invention relates to the field of aluminum plate coating, in particular to a coating production process of an aluminum veneer.

Background

Aluminum veneer coating refers to a coating layer which is arranged on the surface of an aluminum plate in a coating mode in the production process of the aluminum plate, and the aluminum plate coating generally comprises a primer and a finish.

After long-time use, the coating on the aluminium veneer can take place local breakage, and then leads to the coating whole piece to drop, and in the current technology, usually adopt abrasive paper to polish the aluminium veneer and make its passivation to improve the adhesive force of coating, this can strengthen the life of coating to a certain extent, but the effect is not ideal enough, the problem that needs to solve in this field urgently.

Disclosure of Invention

The invention aims to provide an aluminum veneer coating production process capable of prolonging the service life of an aluminum veneer.

In order to solve the technical problem, the invention provides the following scheme: an aluminum veneer coating production process comprises the following steps:

s101: degreasing the aluminum veneer;

s102: carrying out sand blasting passivation on the aluminum veneer by using sand grains of 100-120 meshes, wherein the pressure of the sand blasting passivation is 0.4-0.6 MPa, and then washing and drying the aluminum veneer;

s200: coating a primer on the passivated aluminum veneer, wherein the primer is a water-based paint doped with hard nano oxide particles with the mass percentage of 0.5-1%, and then drying;

s300: and coating a finish on one surface of the primer, which is far away from the aluminum veneer, and then drying.

Further, the method comprises the following steps: in the step S200, the hard nano-oxide particles are SiO₂、TiO₂、ZnO、Al₂O₃At least one of (1).

Further, the method comprises the following steps: in step S200, the water-based paint is a silicon-fluorine water-based paint.

Further, the method comprises the following steps: in the step S300, the finish paint is set in an electrostatic spraying manner.

Further, the method comprises the following steps: in the step S102, the sandblasting speed of the sandblasting passivation is 0.8-1.2 m/S, and the sandblasting distance is 60-90 cm.

Further, the method comprises the following steps: in the step S200, the drying temperature is 80-130 ℃, and the drying time is 5-40 min.

Further, the method comprises the following steps: in the step S200, the primer is disposed in a spraying manner.

Further, the method comprises the following steps: the step S101 comprises the following steps of heating the degreasing agent to 60-70 ℃, spraying the surface of the aluminum single plate for 3-10 min, and washing the aluminum single plate with hot water at the temperature of 60-70 ℃.

The invention has the beneficial effects that: the application can effectively prolong the service life of the aluminum veneer coating by carrying out sand blasting passivation on the aluminum veneer and combining the water-based coating modified by the hard nano oxide particles as the primer.

Detailed Description

The present invention is further described below in conjunction with specific examples so that those skilled in the art may better understand the present invention and practice it.

The following discloses many different embodiments or examples for implementing the subject technology described. While specific examples of one or more arrangements of features are described below to simplify the disclosure, the examples should not be construed as limiting the invention, and the first feature described later in the specification in conjunction with the second feature may include embodiments that are directly related, may also include embodiments that form additional features, and further may include embodiments in which one or more additional intervening features are used to indirectly connect or combine the first and second features to each other, so that the first and second features may not be directly related.