Production Methods And Developing Prospects Of Ultra Fine Powders

The ultra-fine powders whose raw materials are metal or metal can be divided into iron, aluminum powder, magnesium powder, titanium powder, manganese powder, bronze powder (FCu 663), lead powder, zinc powder, zinc oxide, molybdenum powder, tungsten powder, etc. The ultra-fine powders with the procession of non-metallic mineralization are: kaolin powder, titanium dioxide, talc, feldspar powder, calcite powder, quartz powder, heavy calcium powder, light calcium powder, fluorite powder, mica, barite powder, graphite powder, gypsum powder, swelling clay powder and so on. There are a variety of food, agricultural, medicinal herbs, other animals and plants powders which is made of organic matter. n Now the ultra-fine powders in plastic, rubber, electronics, cables, paints, coatings, abrasives, pharmaceuticals, cosmetics, ceramics, building materials, food processing and household appliances have a great amount of demands. The ultrafine powder production and processing is crucial.

At present, the method for the production of ultra-fine powders is mainly two ways: First, the physical methods. Second, chemical synthesis, there is the method on the basis of these two mixed. Nanomaterials generally take a mixed legal system. The main equipment for the physical preparation of ultrafine powder is a variety of different principles of the mill, classifier, and the collection of equipment, such as jet mill, vibration mill, Raymond mill, ball mill, etc., form of mainly dry and water law kinds. Chemical synthetic methods and chemical reactions under various conditions, high temperature, high pressure and sudden cold technology to prepare. High and ultra-high grade of ultra-fine boron powder production should have advanced level technology and equipment as protection.

In the low end of the ultrafine powder production process is relatively simple, the quality of their products to protect the device performance. n From the 1980s, China has begun the ultra-fine calcium carbonate researches. Shanghai, Guangdong and other places have developed several different products of calcium carbonate. Strengthening research and development of new high-grade ultra-fine calcium carbonate's production technology and equipment is the urgent requirement of rubber, plastics, paper and other industries. It is also an important goal for the calcium carbonate industrial development in China. According to experts' estimations, China's ultra-fine powder processing industry has promising developments.

The ultra-fine powders whose raw materials are metal or metal can be divided into iron, aluminum powder, magnesium powder, titanium powder, manganese powder, bronze powder (FCu 663), lead powder, zinc powder, zinc oxide, molybdenum powder, tungsten powder, etc. The ultra-fine powders with the procession of non-metallic mineralization are: kaolin powder, titanium dioxide, talc, feldspar powder, calcite powder, quartz powder, heavy calcium powder, light calcium powder, fluorite powder, mica, barite powder, graphite powder, gypsum powder, swelling clay powder and so on. There are a variety of food, agricultural, medicinal herbs, other animals and plants powders which is made of organic matter.Source:http://www.mhcmp.com