Powder coating technology of metal: consider in detail
Powder coating of metal the technology is not so complicated. Here you just have to follow the technology and you will get a high-quality and attractive surface.
Today we will tell you what powder coating technology is and how to do it right with your own hands. Then the final price will not be large. Also on the video in this article and photo you can find a lot of additional and necessary information.
The content of the article
What is powder coating
Powder coating technology is slightly different from conventional. Judging by the name, it can be understood that the paint is a finely divided powder. In its structure are inorganic and organic substances, namely polymers. Powder coating technology is environmentally friendly and provides an ideal and durable coating.
Thanks to it, you can achieve a decorative coating of the part and give the best aesthetic appearance. The paint is melted at two hundred degrees of temperature. Metal and glass are excellent for painting with this method.
Powder paint has gained its popularity by the following advantages:
- Its use is much more economical from the classic species.
- Powder paint dries incredibly quickly after application.
- This product is very easy to use.
- There is a different decorative effect.
- Strength and durability - especially important characteristics for any paint.
- Environmental friendliness.
- It consists of polymer resins, hardeners and other pigmenting agents. They are affected by the high temperature of the furnace (up to approximately 200 degrees). It forms the strength and ideality of the coating in them.
- This staining method applies only to that surface which is able to withstand the polymerization process. After all, she will need a high level of temperature heating.
To create a uniform coating, one must use a polymerization chamber (see Do-it-yourself powder paint oven) It’s kind of a furnace in which the temperature is kept up to 200 degrees.
Attention: Before painting, you should think about whether the painted part is able to withstand such a high temperature level. Although the process itself does not take much time, the consequences specifically depend on the subject of staining.
Of course, there are some disadvantages. For example, for painting with your own hands you will need a lot of skill, since the process itself requires special conditions. Can you replace the polymerization chamber?
There are difficulties with the color. You can not mix two types of powder in order to achieve any particular color and shade. Simply you will not achieve monotony. In general, the market provides a wide variety of color options.
What equipment is needed for powder paint
Powder coating technology requires a spray booth. It's just that nothing can be done in the air.
- In order for the painting process to be performed quickly and efficiently, you will need to choose the right room for this. In truth, a garage is also suitable for this type of work. The main thing is that there should be enough space to accommodate the necessary equipment and for the most convenient work.
- Before starting the painting process, the equipment itself should be prepared. The role of the equipment is a special camera.Most of the work is in it. The characteristics of this furnace depend on the material being processed.
Aspects to be aware of when painting:
- In a special chamber, another chamber is located, which is responsible for spraying powder paint into the furnace itself. If you do not plan to deal with powder coating all the time, you can do without a melting furnace. The oven is also suitable for this type of work.
- In addition to the basic equipment, you will need additional. We are talking about an electrostatic spray gun (see Spray paint: features of use) It is important that in its functionality there is the ability to connect compressed air. In principle, a compressor can also be used. He will need a high pressure filter.
- Powder coating processes for metal require a room with good sanctification. For this, daytime lamps are suitable. The main thing is that paint does not stick to the surface of the lamp. Still need good ventilation. It will protect your health. For without ventilation, the process can be harmful to the human body.
- What to do with paint residues? The recuperator will help you with this. Of course, you can do without professional equipment. It will be enough to use a cyclone type vacuum cleaner. But in no case should not use the usual, as it will clog. In general, the operation of such an assortment of equipment will require a powerful electrical network.
- If products of large volumes or dimensions are painted, it will effectively use the transport system. It is important that each part can be freely moved for a more thorough painting step.
- A special transport system contributes to the accelerated process of powder coating. Movable trolleys on rails significantly increase the speed of production and the level of convenience of the paint application process itself.
What is the principle of powder coating?
The technology of powder coating of metal involves uniform spraying of the dye on a plane. In this process, it evenly lies on the surface of the object being painted. In order to achieve long-lasting durability of the paint, you need to do the work evenly and slowly.
The price of coverage is large, but let's look at how attractive it is:
- The cost of powder coating is the same as the traditional one. Nevertheless, she has more advantages than standard methods.
- Powder painted parts acquire decorative qualities. For example, you can find a wide variety of colors and shades on the market. In their choice can be universal colors (for example, silver and gold).
- With this method of painting, you can achieve a different type of style. Suppose you want the material to be painted to look like bronze, silver or granite. The paint on the metal of the powder composition will perfectly help with this. In addition to these effects, others are available. Namely, the application on the working material of the effect of a chameleon, mother of pearl and antique. That is, in addition to the structure of the product, it is possible to change the texture.
Powder Coating Rules
Now very often there is a need for painting the metal, which means that many will be interested in the method of powder painting. It can guarantee aesthetics and protection to the product, and the coloring process itself does not require long periods. This is one of the most popular methods recognized by European standards.
| Material processing | Before starting work, you need to properly prepare the material. The entire success of the application of paint and how it will look in the future depends on this. Things to avoid before painting are dirt and rust.
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| We are approaching the end of surface preparation | After thorough cleaning, it will be necessary to carry out chemical degreasing, and then dry the material. Depending on the future use of the product, powder coating may require chromating or phosphating of the surface before applying a coat of paint. This is especially true for disc coloring. |
| Disguise | Sometimes not all parts of a part have to be painted, but camouflage is used for this. It helps to cover those places that do not need painting. Often masking is partially used to divide parts into the required number of parts that do not require painting. For example, they cover threads and ground parts. |
| Paint metal | After masking and thorough cleaning, the product is fixed on the conveyor. And after it is transferred to a special chamber, where the process of powder painting will take place. Further, the atomization mode begins with an electrostatic tool. Upon completion of the previous stages of work, the paint will be held at the expense of the energy applied by a special device. If careless, it can be easily blown off or wiped away. |
| Polymer metal coating | As mentioned above, the powder layer is not fixed and can be easily removed. Accordingly, it can be fixed using a polymerization chamber. In the oven, the paint will melt, and then it will harden. This process is carried out at a rather high temperature. The paint layer at maximum heating quickly melts and adheres to the surface of the part, as it penetrates into its pores. The same method is used when painting discs. |
Shutdown
A special furnace did its job and it remains only to extract the part. You need to give time to cool the product, while the powder paint specifically becomes hard. All this will take 24 hours to get guaranteed durability.
So:
- For the method of powder painting of metal products, special equipment and a diligent room for this work are extremely necessary. Naturally, in connection with such requirements, specific costs are guaranteed. You can save on rental space using your own garage. Nevertheless, it is worth buying such professional equipment if you plan to use it on an ongoing basis.
- How to choose equipment for yourself? Professionals advise purchasing products from Encore. It offers a wide selection of dyeing systems, both for manual and automatic. Ordinary businessmen and larger customers who have their own production facilities can afford these products. You can get a full range of equipment from Encore: powder spraying equipment, electrostatic tools, cameras for manual and automatic painting.
- If you want to carry out fast and high-quality painting, it is recommended to choose a system with automatic mode. It contains additional equipment with manipulators that facilitate work. For large businesses, it is advisable to use an integrated management system. In this way, the process will be significantly optimized.
- Another advantage of automatic systems is that they save up to about 20 percent of the material used, and in this case, the powder. Here in manual mode, it is unlikely to save. However, the manual version is not so expensive in cost as opposed to automatic.
Powder coating technology is not so complicated. By acquiring a camera for yourself it’s quite possible to make money. The instruction will help you avoid mistakes when doing the work.
