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.
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.
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.Source:http://www.mhcmp.com
The application of tungsten in various industries
Steel Industry Most of tungsten applied in the production of special steels. The widely used high-speed steel was containing 9-24% of tungsten, 3.8-4.6% of chromium, 1-5% of vanadium, 4-7% of cobalt, 0.7-1.5% of carbon.
Magic effects of coconut oil
According to records, coconut oil can be regarded as the nobility of skin care plant extracts. It was rich in exotic tension of tropical plants, which can enhance the contractile force of the pores, perfectly beautify and nourish the skin.
Exploring the Potentials of Nano-Aluminum Powder
Nano-aluminum powder, a material with remarkable properties due to its minuscule particle size, is revolutionizing various industries with its high reactivity and large specific surface area. Unlike its bulk counterpart, nano-aluminum powder begins to oxidize at a lower temperature of 550°C, compared to the 950°C oxidation point of ordinary aluminum. This lower ignition energy and full combustion without apparent cohesion make it a superior choice for applications requiring high energy and efficiency. The unique characteristics of nano-aluminum powder, such as faster burning rates and greater heat release, are largely influenced by its synthesis method, which determines its particle size, surface area, and shape.
