How to remove the powder coating on an aluminum alloy profile

The best way to remove the coating of aluminum alloy is to use paint stripper, even if it is die-cast aluminum with writing paint remover, it will not produce blackening and corrosion after taking off the paint remover. If sandblasting is used for decoating, the board should be considered.

Thickness, strength, etc. will not be deformed. The hot cleaning furnace is also not suitable, and the aluminum alloy is easy to be blackened and deformed when decoated with a hot cleaning furnace.

All things considered, paint strippers are the most effective way to remove coatings.

As far as I know, concentrated sulfuric acid or other mixed concentrated acids are commonly used for depowdering. However, not all powder can be taken off cleanly.

It's spray paint that is baked, and it's unrealistic to scrape it off with a knife, so I guess there's nothing I can do.

I believe that many people are familiar with aluminum profiles, but many people may not know why aluminum profile elbow manufacturers should powder coat aluminum profiles? Let's take a closer look at it.

Aluminum profiles have been widely used in doors, windows, curtain walls and other products of buildings for many years due to their small specific gravity, easy processing and high mechanical strength. Aluminum is a relatively lively light metal with a silvery-white luster, and its corrosion resistance has the following two characteristics:

The higher the purity, the better the corrosion resistance, mainly because the pure aluminum interacts with oxygen in the air to produce a thin layer of dense natural oxide film on the surface of aluminum, which is faster and thicker than other metal oxide films, and then prevents the further corrosion of harmful gases and moisture in the air, which plays a protective role;

Aluminum profiles have high mechanical strength, but low corrosion resistance. Although the corrosion resistance of pure aluminum is good, the mechanical strength is poor, which restricts the application of aluminum to a certain extent, for this reason, people add an appropriate amount of magnesium, copper, zinc and other metals to the aluminum to make various types of aluminum alloys, so that the mechanical strength of aluminum is greatly improved, and the application range is greatly expanded, but the corrosion resistance is worse than that of pure aluminum, so it is possible to be corroded due to oxidation. This requires powder coating to protect the aluminium profiles.

There are several significant advantages of powder coating:

1. The process is relatively simple, mainly due to the improvement of the automatic accuracy of the main equipment in the production process, and the microcomputer control can be realized for some of the main technical parameters, which effectively reduces the difficulty of process operation and greatly reduces the auxiliary equipment;

2. The yield is high, and under normal circumstances, if the measures are appropriate, the generation of unqualified products can be controlled to the greatest extent;

3. The energy consumption is significantly reduced, and the consumption of water and electricity is quite large in the production process of ordinary anodizing and electrophoretic coating, especially in the oxidation process. The output current of the rectifier can reach between 8000 and 11000A, the voltage is between 15, coupled with the heat consumption of the machine itself, it is necessary to keep cooling with circulating water, and the power consumption per ton is often about 1000 degrees, and the reduction of auxiliary facilities can also reduce some power consumption;

4. Reduce the degree of pollution of water and atmosphere, no longer use flake alkali, sulfuric acid and other liquid organic solvents, reduce water and air pollution, and effectively improve the competitiveness of aluminum profiles and plastic steel profiles as environmental protection products, and reduce some production costs accordingly;

5. The labor intensity of workers is significantly reduced, and due to the use of automated assembly line operations, the feeding method and the use of fixtures have been significantly simplified, which improves production efficiency and reduces labor intensity;

6. The surface quality requirements of the wool are significantly reduced, and the powder coating can completely cover the extrusion lines on the surface of the profile, cover up the defects on the surface of some aluminum profiles, and improve the surface quality of the finished aluminum profiles;

7. Some physical indicators of the coating film are significantly improved compared with other surface treatment films, such as hardness and wear resistance, which can effectively extend the service life of aluminum profiles.

Aluminum profile powder coating is actually a kind of powder coating. That is, the powder coating is sprayed on the surface of the aluminum profile or workpiece with powder equipment (electrostatic spraying machine), and then under the action of static electricity, the powder will be evenly adsorbed on the surface of the aluminum profile to form a powdery coating, and then hardened by high temperature baking and leveling to become a coating with different effects.

Question 1: How to remove cement and latex paint on aluminum alloy after decoration The easiest way to remove cement is to add acid reaction to dissolve calcium carbonate into calcium chloride, but aluminum is too active and reacts with acid, so it can only be soaked in hot water or oil, and then cleaned up point by point physical method. Slow down, it's not a big problem!

Latex paint, according to the quality of the difference, the degree of difficulty of cleaning is different. Generally, you can wipe it with hot water, and if it is slightly larger, you can use your fingernails or bamboo skewers and wood chips to assist. Thanks to the cleaning of latex paint on aluminum alloys, it is simple.

Qingdao Quancheng Coating Veteran is at your service!

Question 2: How to remove the paint on the aluminum alloy Wipe it with a damp towel, or add a little thinner.

On the perimeter of the door frame? Maybe it's latex paint on the wall, right? Moisten the "paint" with warm water first, if the trillion fruit can be wiped off, it is mutual glue paint, and you can continue to wipe it; If it is indeed paint (wood paint), it can only be cleaned with a thinner of paint, but it will have a corrosive effect on aluminum alloy, so it needs to be used carefully.

Question 4: How to remove the paint on aluminum alloy doors and windows New stains can be tested with turpentine or banana water, and then scrubbed with gasoline. Aged stains can be soaked in 10 20 ammonia or borax solution to dissolve the solids and brush clean.

Question 5: How to clean the latex paint on the aluminum alloy door? Latex paint is a water-based paint, which is very easy to remove, you first use a brush to wash the water on the white spots, and wipe it off with a damp towel after a few minutes.

Question 6: How to remove the white paint on the aluminum alloy? Find a little gasoline and wipe it with a rag.

Question 7: How to remove the latex paint on the aluminum alloy window 1. Wipe the latex paint that has not dried, and then gently scrape off the dry paint with a paint scraper. Wipe the stain with a cloth or sponge dampened with warm, soapy water.

2. Another effective treatment method is to mix 1 tablespoon of oxalic acid and liters of water into a solution, and then wipe the stain with a cloth dipped in the solution. Finally, dry the area and wax as needed. Warning: Oxalic acid is toxic and should be worn with rubber gloves and used with care.

3. Directly find a professional cleaning company to clean up.

Question 8: How to clean the paint on the aluminum alloy window At that time, the coating was cleaned with gasoline, and there was no way to do it.

Question 9: How to remove the exterior wall paint stuck to the aluminum alloy frame The exterior wall paint is generally water-based, if it is not dry, it can be scrubbed with water.

Question 10: How to remove the latex paint on the aluminum alloy window Latex paint is a water-based paint, which is very easy to remove.

Summary. Pro, clear it like this: First, the hair dryer is heated.

Thermal expansion and contraction, you can use a hair dryer to turn on the maximum hot air to blow on the offset printing for a while, and then the offset printing will become soft, then you can wipe it off with an eraser or rag!

How to eliminate the traces of winding film on the surface of aluminum profile powder coating.

Pro, this way to clear: First, the hair dryer heats up the thermal expansion and contraction, you can use the hair dryer to open the hot air to blow the offset for a while, and then the offset will become soft, and then use an eraser or rag to wipe it off!

Second, the eraser erases, if the stretch film offset printing is small, you can use the eraser to try, the eraser debris can just stick the adhesive traces down.

Hello Aluminum Profile Outdoor Black Powder Matte Black Peel After Sticking the Protective Film, Tear Off There is a Clear Film Mark.

3. Cheongju Computer Cleaner Erases Offset PrintsThe cleaner usually used to wipe camera lenses and computer screens can also be used to wipe the traces of tape, which is very effective for tape masking on the surface of smooth items.

4. Soak in medical alcohol with a wet towel or cotton swab dipped in some medical alcohol and soak it on the offset for a while, and then wipe it off with a paper towel.

Dear, I hope to bear with me. I still sincerely hope that my Song Shen will be of some help to you, thank you for your support!! <

If you're satisfied with me, you can also give me a thumbs up and smile, thank you, <>

Soak in medical alcohol with a wet towel or cotton swab dipped in some medical alcohol and soak it on the seal for a while, and then wipe it off with a paper towel.

Aluminum alloy powder coating paint removal is related to surface smoothness and is temperature dependent.

The treatment of aluminum alloy products before painting is very important. There are mainly the following categories:

1. The grinding wheel is roughly beaten and then beaten once with a hemp wheel.

2. The use of sandblasting machine (divided into sand and steel balls) for surface treatment, after one of the previous processes, and then chemical surface treatment (cleaning, chrome, etc.), general chromization is conducive to increasing the adhesion of paint.

3. Paint is also a key factor, and the relevant requirements should be given to the paint manufacturer for paint development before the product is developed. The parameters of the paint in the process of use are also related and important, and in general, the paint supplier should give it (such as baking temperature and time, etc.).

As long as it is the problem of spraying powder and peeling paint on the surface of aluminum alloy, aluminum, stainless steel and galvanized parts, the main consideration is whether the choice of paint and plastic powder is reasonable. Because the general paint and powder adhesion on the surface of these substrates is not good. If there is no problem in the selection of materials, it is necessary to consider whether the bottom treatment is clean, and whether the oil stain and pressure-sensitive adhesive are clean.

I mainly produce water-based stainless steel, aluminum alloy, aluminum, galvanized sheet surface paint, there is a special primer, can be directly sprayed on a variety of topcoats; There is a water-based paint with a unified bottom surface, and only one paint can be sprayed; There are self-drying type and baking type, and different types can be selected according to their own process requirements; All kinds of colors, all kinds of gloss can be adjusted.

What is the bond of the aluminum alloy sprayed on the surface: 1. First of all, the specific material to be glued should be determined for ignition, whether the aluminum alloy is bonded to the aluminum alloy or with other materials. 4. Determine some of the above requirements, you can choose glue, if it is a small area of lead vertical sticking, generally choose the type of instant glue, aluminum alloy, iron and copper are a material that is easier to stick.

Recommended glue: SL-5305, if the bonding area is relatively large, the area is more than 10cm, you can choose another polymerization into epoxy resin and modified curing agent (AB glue), no need to heat curing, if you need to cure fast, you need to heat up, in order to speed up the curing speed of the glue, so that the efficiency in the process of reoperation is also a relatively fast glue, and the bonding effect is also a very good product.