How to deal with the color of the aluminum surface 20

The surface is oxidized and a variety of colors can be obtained.

Although there are more reserves of aluminum than iron, people smelt aluminum much later than iron. This is because the chemical properties of aluminum are more reactive than iron and are not easily reduced, so it is more difficult to smelt aluminum from ore. In this way, aluminum has always been called the "young metal".

According to the history of world chemistry, the metal aluminum was only made by the British chemist David in 1825.

Hot melt of aluminum. The hot melt coefficient of aluminum is related to temperature, at low temperature (40K) is proportional to the cubic of temperature, between 298K-900K it conforms to the law C=A+B*T, and at high temperature it tends to be close to 25J. For detailed instructions, please refer to Physical Properties of Inorganic Materials

Thermal conductivity of aluminum. Since aluminum is an inorganic substance, the thermal conductivity shows a bell-shaped trend, with the highest point at about 60K. When the temperature rises, it approaches a stable value.

It seems that the ideal method is only to do coloring, first of all, the surface is oxidized, because the oxide layer has good anti-corrosion performance, and is not conductive, it is a spongy structure, and the fine voids can be filled with any color. A lot of lipstick shells do this. The other should only be sprayed directly on the outside with color-adding paint, similar to the now called nano-spraying, I don't think it's ideal.

Depending on your color needs, surface oxidation coloring can be that, and now this kind of processing has become common!

And the processing equipment and the whole processing process are fully automatic and numerically controlled!

The surface is oxidized and a variety of colors can be obtained.

At present, this process is used, and there is no more advanced.

There are generally two kinds:

Anodizing and chemical oxidation.

Aluminum is a material with strong wear resistance, but when exposed to air, it is easy to react with the oxygen in the air, and being in this environment for a long time will reduce the corrosion resistance of aluminum, so aluminum must be treated after oxidation, but few people know the specific treatment method, and then I will take you to understand.

Aluminum oxidation post-treatment method.

1. Hot water flushing method.

Rinse the aluminum with hot water, so that you can achieve the purpose of aging the film, but when using this method, you must pay attention to the water temperature, and the cleaning time should also be strictly controlled, under normal circumstances, the water temperature is about 40 degrees to 50 degrees, and the cleaning time is controlled within one minute, so as not to make the color of the aluminum lighten.

2. Drying. Use a cotton towel to absorb the moisture on the surface of the aluminum, and then put it in a ventilated, ventilated place to let the aluminum air dry naturally, so that the color of the aluminum will not be affected and will be more natural. 3. Aging.

If it is summer, you can put the aluminum in the sun, but in rainy weather, you can choose to dry it in the oven, and the drying time should be strictly controlled, about 10 minutes to 15 minutes.

Benefits of aluminium after oxidation.

1. Prevent corrosion of aluminum products.

After the oxidation of aluminum, a protective film is formed, and the stability of this protective film is still relatively good, which can improve the corrosion resistance of aluminum products and prolong the service life of the product, such as pots, pots, washing machine liners, etc. 2. Increase the beauty of the product.

The oxide film formed can adsorb a variety of dyes, so the products made can be designed into a variety of bright patterns and colors, the most representative should be lighters, gold pens and other products. 3. Strong wear resistance.

The hardness of the oxidized protective film is stronger, and the absorption of this protective film is relatively good, which can be used to store oil, and the most representative should be the engine cylinders and pistons of automobiles and tractors.

In summary, it is best to stay away from acidic substances when using aluminum products in daily life, because aluminum can have a chemical reaction with acid, as long as it is in contact with acidic substances, it can destroy the oxide layer on the surface of aluminum.

The aluminum oxide formed after oxidation on the aluminum surface is more difficult to deal with, but the following methods can be taken:1Use a stain remover to clean the aluminum surface.

Detergents such as sodium alkylbenzene sulfonate, sulfuric acid, acetic acid, etc., can be used. 2.The alumina layer is treated using grinding and returning to the grinding process before grinding.

It can be processed with tools such as abrasive cloth, sandpaper, grinding wheels or grinding machinery. 3.The surface of aluminum is cleaned by electrolytic deoxidation.

The alumina layer can be removed from the surface using an electrolyte. 4.Use a medium for cleaning.

Sandblasting can be done with sand, glass beads and other media to remove the oxide layer on the surface. It should be noted that when cleaning the surface of aluminum, you should avoid using too strong detergents, otherwise Kebi can cause damage to the aluminum. At the same time, you need to pay attention to safety and avoid hurting yourself.

How to remove alumina from the surface of aluminum. After the oxidation of the aluminum alloy surface, we can use the alkali solution to clean the liquid banquet shed, as long as the oxide film adsorbed on the surface of the aluminum alloy is removed, and then use distilled water to clean about 5 times that is, the alarm can effectively remove the dirt on the surface of the aluminum alloy. 2.

The oxidation of the surface of the aluminum alloy can also be soaked with the help of acidic liquid, and the acidity of ordinary white acetate is only about 3% 5%, which is not enough to dissolve the oxide on the surface of the aluminum chain, but there are some cleaning effects after a long time of soaking, as long as we take it out immediately after soaking and use clean water to clean it and polish it with sandpaper, it can be presented.

Summary. Hello, I am helping you to inquire about the relevant information and will reply to you immediately.

How to deal with the blackening of the surface of aluminum alloy?

Hello, I am helping you to inquire about the relevant information and will reply to you immediately.

Is this a pot?

Alkaline oxidation and acid oxidation can be used to remove the blackened spots on the surface, or you can choose to use sandpaper to rub off the blackened spots; If you use ordinary dish soap, the effect is not very good, and even if the dark spots show signs of fading, they will not last for a long time, and after a period of time, oxidation will appear again.

Aluminum lid of a mincing machine.

You can poke it off with sandpaper.

There is also a good thing to recommend to you, you search for Xiaobai on the Internet, the same size as a sponge sassafras, very useful.

I use Xiaobai at home, no sandpaper, you see which one is convenient to use, Xiaobai is not expensive, and it is absolutely magical with toothpaste.

1. Most of the traditional methods of cleaning oxides on the surface of aluminum alloy are to use chemical cleaning to clean Busunbu, although chemical cleaning can remove oxides on the metal surface, but there are also many limitations, such as the need to control the ratio of detergent and water, the need to soak in time, the use of environment, etc., the use of chemical cleaners to clean the oxide generated by the waste will also cause pollution to the environment. If it is wiped with chemical reagents, it is more time-consuming and inefficient.

2. Laser cleaning can quickly remove the oxide and anodic oxide layer on the surface of the aluminum alloy, and in the process of operation, an operator can use a laser cleaning equipment to clean the surface of the aluminum alloy, saving a certain amount of labor to form the ear. The laser cleaning equipment is easy to learn, plugged in and ready to use, and there are no other consumables during the cleaning process, so there is no waste generation, so there is no pollution to the environment.

Aluminum surface oxidation, it is recommended not to treat, aluminum oxidation will produce a dense alumina film on the surface, which will prevent the oxidation of the inner layer of aluminum. Its chemical properties are the same as those of alumina. However, unlike ordinary oxide films, anodized aluminum can be dyed with electrolytic coloring.

If disposed of, aluminum is a chemically reactive metal, so it will continue to react with oxygen to form alumina, and if it is treated, the aluminum will eventually become thinner and thinner.

Anodizing can significantly improve the corrosion resistance of aluminum alloy, improve the surface hardness and wear resistance of aluminum alloy, and have good decorative properties after proper coloring treatment. The anodized film coloring technology of aluminum and its alloys can be divided into 3 types, including chemical dyeing, electrolytic coloring and electrolytic overall coloring.

Anodizing is carried out under the condition of high voltage electricity, it is an electrochemical reaction process; Conductive oxidation (also known as chemical oxidation) does not require electricity, it only needs to be soaked in the potion, it is a pure chemical reaction. Anodizing takes a long time, often tens of minutes, while conductive oxidation only takes a few tens of seconds.

Aluminum is a white light metal, the third most abundant in the earth's crust after oxygen and silicon. Aluminum has a very important and wide range of applications in the three major industries of aviation, construction and automotive.

Summary. Dear, I'm glad to answer for you:

How to deal with the discoloration of the aluminum skin is as follows:

The most commonly used aluminum blackening is to anodize aluminum through the action of electric current in the sulfuric acid electrolyte, form a thin layer of about 10 microns on the surface of the aluminum, and then use the dyeing solution prepared by black organic dye for dyeing. Because this artificially formed oxide film has many small pores that are not visible to the naked eye, melanin can enter all the pores, making the original silvery-white aluminum surface black. In order to achieve a black matte, it can be sandblasted before oxidation to create a matte surface, which is oxidized and colored to become a matte black.

There are a lot of materials and equipment used, including some dangerous goods such as strong acids and alkalis, as well as heavily polluted equipment, which require dozens of processes and specialized technology to complete, and it is difficult for you to complete it personally. It is suitable to entrust a comprehensive electroplating plant, or an aluminum oxidation plant.

How to deal with the aluminum skin changing color.

Dear, I'm glad to answer for you: how to deal with the color of aluminum skin as follows: the most commonly used aluminum blackening is to anodize aluminum through the action of electric current in the sulfuric acid electrolyte, and form a thin layer of about 10 microns on the surface of the aluminum oxide film, and then use the dyeing solution prepared by black organic dye for dyeing.

Because this artificially formed oxide film has many small pores that are not visible to the naked eye, melanin can enter all the pores, making the original silvery-white aluminum surface black. In order to achieve a black matte, the scrambler can be sandblasted before oxidation to create a matte surface, which is oxidized to become a matte black. There are a lot of materials and equipment used, including some dangerous goods such as strong acids and strong alkalis, as well as heavily polluted equipment, which require dozens of processes and specialized technologies to complete, and it is difficult for you to complete it personally.

It is suitable to entrust a comprehensive electroplating plant, or an aluminum oxidation plant.

Dear, hello, I am glad to answer for you: how to deal with the aluminum skin when the color changes and how to deal with the aluminum skin when the color changes as follows; 1. The mechanical method is to use sandpaper or steel wool balls to polish; 2. Before the chemical pharaoh, it is scrubbed with an acidic or alkaline solution. Both methods can achieve the effect, but they will cause damage to the aluminum surface, accelerate the aging and corrosion of the aluminum, and reduce the service life I hope I will help you to make silver, I wish you a happy life, if mine is helpful to you I hope you can give a 5 star like.

Thank you, Si Huqing, for your support to me.

1. Solution oxidation method: put the parts in the copper sulfate solution, remove the surface oxidation protective film after a certain time of reduction reaction at a certain temperature, and clean and dry after taking it out.

2. Alkaline deoxidation method: the parts are immersed in sodium peroxide solution, and the length of treatment time depends on the carbon content in the parts. After the metal parts are reduced, they are rinsed with soapy water and rinsed with cold and hot water after five minutes.

3. Acid oxidation removal method: the parts are placed in the acid punch solution for treatment, the acid oxidation method is more economical, and the protective film generated on the metal surface after treatment enhances the corrosion resistance and removes the oxide film on the surface of the aluminum products.

4. High-temperature deoxidation method: the metal products are heated to more than 600 degrees Celsius, treated with hot steam and reducing agent, and the aluminum products are immersed in molten alkali metal salts of about 300 degrees Celsius for treatment.

5. Anode oxidation removal method: the aluminum product is used as the anode, and the oxide film on the surface of the aluminum product is removed by electrolysis, which increases the binding force between the coating and the metal at the same time, and removes the oxygen judgment film on the surface of the aluminum product.