Vitrified bond diamond wheel is used for grinding Boron carbide coated armor.
Vitrified bond diamond wheel is used for grinding Boron carbide coated armor.
Vitrified bond diamond wheel has high grinding efficiency and long service life, and it is one of the best choice for grinding Boron carbide coating.
Development of Industrial Ceramics
In recent years, with the development of science and technology, higher requirements have been put forward for materials in the fields such as atomic energy, rockets, and gas turbines. There is an urgent need for one material that can withstand high temperature more than heat-resistant alloys and resist chemical corrosion more than traditional ceramics. The special ceramics have developed rapidly because they can meet these requirements.
Application of Boron Carbide
There are four types of materials used for armor and bullet proof, metal, ceramics, fiberglass and fiber. The armor and bullet proof materials feature high hardness, high strength, high toughness and low density and low cost. The traditional metal bulletproof materials with high density and excessive heavy steel plate armor, and the vehicles, ships, and aircraft must reduce the load. At the same time, the heavy armor material also affects maneuverability and flexibility.
Therefore, lightweight bulletproof materials have become a focus of current research and development. The special ceramic materials have excellent comprehensive features such as high strength, high hardness, high temperature resistance, oxidation resistance, excellent wear resistance at high temperatures, low coefficient of thermal expansion, and low density. Moreover, the energy absorption effect, wear effect, and dynamic effect of special ceramic materials enhance the ballistic resistance of ceramic materials, which are not possessed by metal materials, polymer materials and composite materials. It has also widely used in armor protection and become one of the main materials for armor protection, playing an irreplaceable role. Among them, the high hardness of Boron carbide(B₄C)ceramics( only second to diamond and cubic Boron nitride) makes it good application prospect in the military field.
Boron Carbide
Boron carbide, also known as Carbonado, is an inorganic substance, with the chemical formula of B₄C, usually a grayish black powder. It is one of the three hardest known materials used in tank armor, bulletproof vests and many industrial applications.Its Mohs scale hardness is about 9.5.
It features low density, high strength, high temperatures stability and good chemical stability. It is used in wear-resistant materials, ceramic reinforcement phases, especially in the lightweight armor, reactor neutron absorber and other areas. In addition, compared with diamond and cubic boron nitrde, Boron carbide is easily manufactured and cheaper, so it is more widely used. It can replace the expensive diamond in some places, and is widely used in grinding, drilling and other aspects.
Vitrified Bond Diamond Wheels
Vitrified bond diamond wheel is a kind of superhard material abrasive tool and has developed rapidly at present. Compared with the resin bond diamond grinding wheel, it has good shape retention, high machining dimensional accuracy, and it is to be dressed easily than metal bond diamond wheel. It is no jam during and no burn workpieces. Due to the preparing method of hot pressed for resin metal bond diamond grinding wheels, it is difficult to obtain enough pores for storing grinding fluid and improving the self sharpening of the wheels. Vitrified bond diamond wheel can conveniently control the size of the porosity.
Vitrified bond diamond grinding wheels have been tested in practice, both in terms of sharpness and wear resistance. Therefore, vitrified bond diamond grinding wheel is used for boron carbide coating armor with high grinding efficiency and long time, which is an ideal choice for boron carbide coating grinding.
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