Aluminum Al Powder CAS 7429-90-5

How is Aluminum powder produced? 

1. Melt extrusion method

The method is to heat and extrude the metallic pigment's remaining components (resin, etc.) and powder coating through a screw extruder. Although metallic pigments and powder coatings can be completely mixed, the selection of metallic pigments in high-viscosity melts is insufficient. In addition, the metallic effect of the metal powder produced by this method is gray during construction. Therefore, this method is only used to produce hammer powder.

2. Dry blending method

The method is to add the metal pigment dry powder into the pulverized powder coating and mix it with a mechanical mixer. The advantage of the dry blending method is that mixing metallic pigments and powder coatings is not very intense, thereby preventing the deformation of the flake metallic pigments, and the metallic effect will not be affected. In addition, the loose pigment/resin mixture is also very conducive to the option of metallic pigments and improves the glitter effect. The disadvantage of this method is that when automatic spraying equipment is used to process the recycled powder, there is a big difference in the shape, density, and carbides of the metallic pigment and resin powder particles, resulting in separation.

3. Supplementary fixing method (bonding process)

In this method, the metal pigment and powder coating are dry-mixed at the same time and heated at the same time so that the temperature exceeds the softening point of the resin. At this time, the metal pigment can be fixed on the surface of the adhesive resin powder to prevent the powder from being constructed. The separation of metallic pigment and resin powder during recycling after neutralization construction. It is the popular bonding law.

4. Jet milling method

This method is produced using the principle of supersonic airflow pulverization. Because the aluminum powder is easily oxidized, it is generally produced using the JZDB series nitrogen-shielded airflow pulverization classifier to produce an ultrafine aluminum powder.

Aluminum powder Uses:

Aluminum is a metal element in the crust of bauxite. Aluminum is extracted from bauxite and then separated using a chemical method called the Bayer process. Aluminum is a soft and easy-to-shape silver medal and is non-toxic and non-magnetic. Aluminum is available in solid and powder form and has a wide range of uses on both commercial and personal levels.

Explosive

Aluminum powder is extremely flammable, so one of the most common uses is in pyrotechnic displays. The aluminum powder burns brightly and produces different flashing effects in the fireworks show using different powder grades. It is also used similarly to the explosive composition used in commercial mining. In the past, when photography was still in its infancy, aluminum powder was also used to make camera flashes.

Paint

Aluminum powder is often used to make metallic silver pigments and is sometimes sold as aluminum bronze in art shops. Aluminum bronze is flake aluminum powder, usually coated with talc or other compounds that reduce its reactivity. Pigments made from aluminum powder are commonly used as coatings in the electronics, packaging, and automotive industries. Aluminum powder can also produce thick pastes, which are then coated on the back of photovoltaic solar cells to make them conductive.

Fingerprint powder

Aluminum powder is often used at crime scenes to form potential fingerprints on smooth, non-porous surfaces. According to the British Home Office, aluminum flake powder is the most effective fingerprint powder used on glass. Except for silver, when used on most colored surfaces, aluminum flake powder can provide good contrast. To form a print, a small amount of aluminum powder is applied to the surface with a "Zephyr" brush made of fine glass filament, and the aluminum particles adhere to the print and make it visible.

Rocket fuel

Aluminum powder is an important solid propellant component in missile and rocket fuel. The easy availability of aluminum powder, coupled with its high reactivity and flammability, means that when used as a solid fuel, it can be used in large quantities, providing a large amount of thrust at a relatively low cost. A well-known example of aluminum powder used in this way is the reusable solid rocket motor of the NASA space shuttle.

Prospect Market of Aluminum Powder：

As a common metal powder, aluminum powder is widely used in various fields. With the continuous progress of science and technology and the continuous expansion of application fields, the market prospect of aluminum powder is very broad. 

First, the construction industry is one of the important application areas of aluminum powder. Aluminum powder can produce aluminum powder paint, which has high decorative and weather resistance and is widely used to decorate and protect the external walls of buildings, Bridges, and highways. With the rapid development of the construction industry, the demand for aluminum powder will continue to increase. 

Secondly, the aerospace field is also one of the important application areas of aluminum powder. Because aluminum powder has the characteristics of high density, high strength, and high purity, it can be used to manufacture high-performance parts of aerospace spacecraft, such as parts of aircraft, rockets, and satellites. With the continuous development of aerospace technology, the demand for aluminum powder will continue to increase. 

In addition, the fireworks industry is also one of the important application areas of aluminum powder. Aluminum powder can be used as a luminous and brightening agent of fireworks, used to produce various fireworks products, such as silver waterfall, silver meteor, etc. It can improve fireworks' ornamental and explosive effects. As the demand for fireworks continues to increase, the demand for aluminum powder will also continue to increase. 

At the same time, the electronics industry is also one of the important application areas of aluminum powder. In the electronics industry, aluminum powder can manufacture electronic paste, a key raw material for preparing electronic components. In addition, aluminum powder can also be used to manufacture conductors on printed circuit boards, replacing the traditional copper guide process. With the continuous development of the electronics industry, the demand for aluminum powder will also continue to increase. 

In summary, aluminum powder has a wide range of applications in various fields and has broad market prospects. Due to its unique physical and chemical properties, it provides a variety of uses for various fields. With the continuous progress of science and technology and the continuous expansion of application fields, the application prospect of aluminum powder will be broader. Therefore, the investment aluminum powder industry has huge market prospects and development potential.