Advantages of nitrogen atomizing aluminum powder

Publication time:2021-04-27 Page view:1051

      Aluminium powder products are widely used in chemical catalysts, pesticides, anti-corrosion materials, metal flash coating, conductive coating, aerated concrete gas agent, steel-making deoxidizer, refractory materials, thermite alloy, gunpowder, solid rocket propellant, etc.

氮气雾化铝粉的优点

     

Aluminum powder production in developed countries has a history of nearly 100 years, now the international advanced production technology is nitrogen atomized aluminum powder. In my experience, the current production process of atomized aluminum powder is mostly air atomization, that is, compressed air through the nozzle to atomize the molten aluminum liquid into liquid droplets, and then is cooled into metal powder by a large number of air, and then through the mechanical vibration screen or pneumatic classification device to obtain the appropriate size of the product. Although the cost seems to be very low, but the quality and safety factor of aluminum powder is very low. When the oxygen content is greater than 9%, the concentration reaches 20-50g/m3, the ignition humidity is greater than 600℃, and the ignition energy is greater than 15MJ, it will explode.


Foreign air atomized aluminum powder production process accidents, such as advanced technology of the United States, Germany, Japan, Russia is also a constant accident. Accidents in the production of air atomized aluminum powder occur from time to time in our country. In 1987, an explosion occurred in Jinan Metal Pigment Factory, which killed 13 people and injured more than 40 people.


With environmentally friendly society and the further implementation of production safety, living space will be further compressed air atomized aluminum powder, with national policy, according to air atomized aluminum powder factory will shut down further in the short term, the future can't buy air atomized aluminum powder is coming soon, so that the nitrogen atomized aluminum powder the future market prospect is good.