What Are The Applications Of Boron Nitride in Metallurgy?

The boron nitride coating has strong adhesion to the substrate. The coating has high hardness, friction resistance, impact resistance, corrosion resistance and other characteristics. With the rapid development of automobile and other industries, the performance of metal materials is becoming higher and higher, and the demand for this kind of high-temperature anticorrosive coating also comes into being. It not only needs to be able to work in high temperature and harsh corrosive environment, but also must have anti-vibration, anti-fatigue, anti-temperature mutation and anti-corrosion properties, and the organic polymer material is difficult to meet the requirements of this use.

Boron nitride is a kind of inorganic coating, which can undergo ceramic transformation at high temperature and has excellent high temperature and corrosion resistance. Different kinds of reactive and functional fillers, metal powders with different melting points and inorganic high temperature and corrosion resistant coatings were prepared with water-soluble acid salts as the main film forming substance and chromic anhydride as regulator. Boron nitride coating can self-react to form a dense protective layer at a certain temperature, and has excellent smoothness and oxidation resistance at high temperature. It takes advantage of the unique physical and chemical properties of boron nitride products.