CN115318594A

CN115318594A - Spraying method for Zhanjia No. 7

Info

Publication number: CN115318594A
Application number: CN202211129985.9A
Authority: CN
Inventors: 王海霞
Original assignee: Shanghai Juxuan Brand Management Co ltd
Current assignee: Shanghai Juxuan Brand Management Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-11-11

Abstract

The embodiment of the specification discloses a spraying method for No. 7 warhead armor, which comprises the following steps: preprocessing a vehicle to be sprayed; the color of the part to be sprayed of the vehicle to be sprayed is a first color; uniformly mixing the base paint and a first curing agent according to a first proportion to obtain a first spraying material; carrying out primary spraying on the vehicle to be sprayed after pretreatment by adopting the primary spraying material; uniformly mixing the color master batch and a second curing agent according to a second proportion, and then mixing and adding the color master batch and the second curing agent into the coating according to a third proportion to obtain a second spraying material; the color master batch has a second color; carrying out secondary spraying on the vehicle to be sprayed by adopting the secondary spraying material according to the preset spraying particle size so as to enable the color of the part to be sprayed of the vehicle to be sprayed to be a second color; the second color is different from the first color; and baking the vehicle after the second spraying. The spraying method for the wara nail No. 7 provided by the embodiment of the specification can effectively reduce the spraying frequency and reduce the pollution and the cost to the environment.

Description

Spraying method for Zhanjia No. 7

Technical Field

The application relates to the technical field of spraying, in particular to a spraying method for Zhanjia No. 7.

Background

With the development of technology, the color changing requirements of vehicle owners on vehicles are increasing. The traditional paint spraying process needs manual painting on the surface of a vehicle, often causes the problems of uneven painting, sand holes and the like, influences the attractiveness of the vehicle, and increases the maintenance frequency and the economic cost of a painted surface.

Disclosure of Invention

The embodiment of the specification provides a spraying method for warrior armor No. 7, so that the maintenance frequency of a paint surface and the economic cost are reduced.

Based on this, the embodiment of this specification provides a battle beetle 7 number spraying method, includes the following steps:

preprocessing a vehicle to be sprayed; the color of the part to be sprayed of the vehicle to be sprayed is a first color;

uniformly mixing the base paint and a first curing agent according to a first proportion to obtain a first spraying material;

carrying out primary spraying on the vehicle to be sprayed after pretreatment by adopting the primary spraying material;

uniformly mixing the color master batch and a second curing agent according to a second proportion, and then mixing and adding the color master batch and the second curing agent into the coating according to a third proportion to obtain a second spraying material; the color master has a second color;

carrying out secondary spraying on the vehicle to be sprayed by adopting the secondary spraying material according to the preset spraying particle size so as to enable the color of the part to be sprayed of the vehicle to be sprayed to be a second color; the second color is different from the first color;

and baking the vehicle after the second spraying.

Optionally, the first spraying of the vehicle to be sprayed after pretreatment by using the first spraying material specifically includes:

spraying the vehicle to be sprayed to a preset thickness for the first time;

controlling the temperature at 30-40 ℃, and baking the vehicle to be painted with the base paint for 10-30 minutes.

Optionally, the predetermined thickness is 0.8 mm to 2 mm.

Optionally, the second spraying of the vehicle to be sprayed by the second spraying material according to the preset spraying particle size specifically includes:

determining the particle size of the second spraying according to the set texture;

and carrying out secondary spraying on the vehicle to be sprayed according to the particle size.

Optionally, the baking the vehicle after the second spraying includes the following steps:

firstly, controlling the baking temperature to be 30-40 ℃ and the baking time to be 10-30 minutes, and baking the vehicle after the secondary spraying for the first time;

secondly, controlling the baking temperature to be 40-60 ℃, controlling the baking time to be 30-40 minutes, and baking the vehicle after the secondary spraying for the second time;

and thirdly, placing the vehicle subjected to the secondary baking at normal temperature for 6-8 days.

Optionally, the first ratio is 2:1-3:1, the second ratio is 1: 1:3-1:5.

Optionally, the pretreatment of the vehicle to be sprayed specifically includes:

and carrying out shaping operation and/or grinding operation on the part to be sprayed of the vehicle to be sprayed.

Optionally, a 180 # or 240 # abrasive sheet is used for polishing the part to be sprayed.

Optionally, the vehicle to be painted is preprocessed, and the method further includes:

and adopting an oil removing agent to remove grease on the surface of the spraying part of the vehicle to be sprayed.

Optionally, a particle spray gun is used to spray the vehicle to be sprayed for the second time.

The embodiment of the specification adopts at least one technical scheme which can achieve the following beneficial effects:

in the spraying method for Zhanjia No. 7 provided by the embodiment of the specification, after a vehicle to be sprayed is pretreated, a base color paint and a first curing agent are mixed according to a first proportion, and then the vehicle to be sprayed is sprayed for the first time; and (3) uniformly mixing the color master batch and a second curing agent according to a second proportion, then mixing and adding the coating according to a third proportion to obtain a second spraying material, and spraying the vehicle according to a preset spraying particle size so as to change the color of the vehicle from the first color to the second color, thereby finishing the color change of the vehicle. The spraying method for the warrior beetle No. 7 provided by the embodiment of the specification can effectively reduce the spraying times and reduce the pollution and the cost to the environment.

Drawings

Fig. 1 is a flowchart of a spraying method for a battle nail No. 7 provided in an embodiment of the present specification.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments of the present disclosure, shall fall within the scope of protection of the present application.

The spraying method of wara nail No. 7 provided by the embodiment of the specification is explained by combining the drawings of the specification.

Fig. 1 is a flowchart of a spraying method for a battle nail No. 7 provided in an embodiment of the present specification. As shown in fig. 1, the method comprises the following steps:

step 102: preprocessing a vehicle to be sprayed; the color of the part to be sprayed of the vehicle to be sprayed is a first color;

the user often changes the look to whole automobile body to the change look demand of vehicle, and the position of waiting to spray can be the automobile body. In addition, the spraying method for battle armor 7 provided by the embodiment of the specification can also be used for spraying a certain part of a vehicle. For example: only a certain portion of the door handle or the vehicle body is painted. Or different parts of the car body can be sprayed according to the needs of customers.

The pre-treatment of the painted vehicle may include a shaping operation and/or a sanding operation of the part to be painted. For example: and (3) performing shaping operation on pits on the painted surface of the vehicle body, or performing polishing operation on the places where the vehicle body is warped and rusted.

When the polishing operation is carried out, the part to be polished can be polished into matt by using No. 180 or No. 240 abrasive leather, dust is blown clean by using an air gun, multifunctional repair dust is blade-coated after oil and grease removal until the repairing dust is stricken off, and the whole vehicle paint surface is completely polished into matt by using No. 180 or No. 240 abrasive leather.

In practical application, a dust-free dry grinding machine can be adopted to collect dust in the grinding operation process.

Step 104: uniformly mixing the base paint and a first curing agent according to a first proportion to obtain a first spraying material;

step 106: and carrying out primary spraying on the vehicle to be sprayed after pretreatment by adopting the primary spraying material.

In practical application, the primer can adopt epoxy primer, and is a high-performance, high-adhesion and corrosion-resistant two-component coating; the first curing agent can adopt an epoxy curing agent, and the epoxy curing agent is mixed with the primer according to a first proportion to enhance the hardness and the adhesion. The first ratio is 4:1.

a disassembly operation of the body fitment is also included prior to step 104. For example: and (3) detaching accessory sealing strips, glass battens and the like which are not required to be sprayed on the automobile body so as to keep the original color of the automobile body accessories.

The glass is shielded by a shielding film, the paint surface of the vehicle to be sprayed is subjected to oil and grease removing operation by using an oil removing agent, and the original color on the surface of the vehicle body is completely sprayed and shielded by a spraying mode until the thickness is preset. Wherein the predetermined thickness is 0.8 mm to 2 mm.

And after the first spraying is finished, baking the vehicle to be sprayed at 40 ℃ for 10-30 minutes.

Step 108: uniformly mixing the color master batch and a second curing agent according to a second proportion, and then mixing and adding the color master batch and the second curing agent into the coating according to a third proportion to obtain a second spraying material; the color master batch has a second color;

in practical application, the coating can adopt a bi-component polyurethane coating, is a high-hardness and color-adjustable protective coating, and can provide a high-strength protective barrier for the surface of a vehicle. The second curing agent can adopt a 2K curing agent, and plays a role in curing after being mixed with color master batch, so that the hardness is increased. The second ratio is 1. The third proportion is: 1:3-1:5.

Step 110: carrying out secondary spraying on the vehicle to be sprayed by adopting the secondary spraying material according to the preset spraying particle size so as to enable the color of the part to be sprayed of the vehicle to be sprayed to be a second color; the second color is different from the first color.

In practical application, the grain size of the second spraying is determined according to the set texture; and carrying out secondary spraying on the vehicle to be sprayed according to the particle size.

The amount of the color master batch actually added is determined according to the actual situation, and generally, the amount of the color master batch is 5-10% of the coating.

It should be noted that the second spraying in the embodiments of the present specification may be performed by using a particle spray gun. The particle spray gun is provided with an air pressure adjustable nozzle and a particle mist spray gun, and uniformly sprays the product on the surface of a required object. Wherein, the aperture range of the particle spray gun can be as follows: 5-6 mm, and the control pressure can be 6-8 Pa.

Step 112: and baking the vehicle after the second spraying.

The method comprises the following steps when baking the vehicle after the second spraying:

and thirdly, placing the sprayed vehicle at normal temperature for 6-8 days.

To further illustrate the spraying method of wara No. 7 provided in the examples of this specification, another example will now be provided.

The accessory sealing strips, glass beads and the like which do not need to be changed in color of the car body are detached and put in place.

The large pits on the paint surface of the vehicle body are shaped by metal plates or are polished to be matt by using No. 180 or No. 240 sand coats, dust is blown clean by using an air gun, multifunctional repair ash is scraped after oil removal and grease removal are clean until the repair ash is scraped, and the whole paint surface is polished to be matt by using No. 180 or No. 240 sand coats.

Shielding glass by using a shielding film, then using an oil removing agent to completely remove oil and grease on the surface of the whole vehicle paint, uniformly mixing base paint and a first curing agent according to a first proportion, wherein the first proportion is 2:1, and spraying and shielding the original color on the surface of the vehicle body in a spraying mode, and the thickness is 2 mm.

Mixing the color master batch and a second curing agent according to a second proportion of 1.

The spraying can be carried out by using a particle spray gun. After the spraying particle size is determined, uniformly and crossly spraying the roof for 2 to 3 times, uniformly spraying the body of the car with particles slightly larger than the spraying particle size for one time, and flashing for 5 to 10 minutes; and then, completely covering the ground color by using a spraying mode of uniformly crossing medium particles, flashing for about ten minutes, fully volatilizing the diluent, and then, uniformly spraying the surface once by using a small particle extinction spraying method until the surface is completely extinguished.

After the spraying is finished, after the flash drying is carried out for 20 minutes, the baking room is heated to about 60 ℃ and baked for 30-40 minutes, the curing speed of the coating can be accelerated by heating and baking, and after the coating is completely dried, the coating can be placed at normal temperature for about seven days to reach the real hardness.

While certain embodiments of the present disclosure have been described above, other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily have to be in the particular order shown or in sequential order to achieve desirable results. The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present specification, and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A spraying method for No. 7 warhead armor is characterized by comprising the following steps:

uniformly mixing the base color paint and a first curing agent according to a first proportion to obtain a first spraying material;

uniformly mixing the color master batch and a second curing agent according to a second proportion, and then mixing and adding the color master batch and the second curing agent into the coating according to a third proportion to obtain a second spraying material; the color master batch has a second color;

and baking the vehicle after the second spraying.

2. The spraying method of wara 7 according to claim 1, wherein the first spraying of the vehicle to be sprayed after pretreatment by the first spraying material specifically comprises:

spraying the vehicle to be sprayed to a preset thickness for the first time;

3. The method of claim 2, wherein the predetermined thickness is 0.8 mm to 2 mm.

4. The spraying method of wara 7 according to claim 1, wherein the second spraying of the vehicle to be sprayed with the second spraying material according to a preset spraying particle size specifically comprises:

5. The method of claim 1, wherein the step of baking the second painted vehicle comprises the steps of:

6. The method for spraying the wara-formazan 7 according to claim 1, wherein the first proportion is 2:1-3:1, the second proportion is 1: 1:3-1:5.

7. The wara No. 7 spraying method of claim 1, wherein the pretreatment of the vehicle to be sprayed specifically comprises:

8. The method as claimed in claim 7, wherein the spraying part is ground by 180 or 240 grit.

9. The wara No. 7 spraying method of claim 1, wherein the pre-treating of the vehicle to be sprayed further comprises:

10. The method of spraying wara No. 7 as claimed in any one of claims 1 to 9 wherein the vehicle to be sprayed is sprayed a second time using a particle spray gun.