It is mainly divided into metal and non-metal compound and non-metal intercompound. The former include refractory metals such as tungsten, molybdenum, tantalum, niobium, vanadium, chromium, titanium and zirconium, as well as rare earth metals such as boride, carbide, nitride, silicified, phosphide and sulfide. The latter such as boron carbide, silicon carbide, boron nitride, silicon nitride, boron phosphide, silicon phosphide etc.
The latter has a very important purpose, can be used for high temperature refractory materials (such as grinding, molding, spray nozzle, high temperature thermocouple casing), heat-resistant materials (such as structural components in the rockets, nuclear engineering materials, electric heating element), electrical materials, such as high temperature thermocouple, ignition electrode), also used as a chemical corrosion resistant material and hard material, etc. Heat-resistant polymer can be used as high-temperature film insulation materials, high-temperature fiber, high-temperature paint, high-temperature adhesive, etc. According to the time of high temperature resistance, there are instant high temperature resistant materials and longer time high temperature resistant materials. The former in 1000 ~ 10000 ℃ ability of a few seconds to minutes. The ablative material is also a high temperature resistant material. In 300 ~ 600 ℃, for example, in the air can keep its mechanical strength, resistance to chemical corrosion, etc.
High temperature resistant coating technology to roughly two big series, series of organic and inorganic series, which mostly organic series high temperature resistant coating with organic silicon as the carrier, the general should not exceed 400 degrees Celsius, the highest temperature exceeds the temperature carbonization or softening occurs, and inorganic series high temperature resistant coating is able to bear the high temperature of at least 1000 degrees Celsius, this kind of paint can be resistant to higher temperature 1500 ℃ even, after testing its coefficient of thermal conductivity of materials at the university of yunnan is 0.06 w/m * k, wide range of USES, thin coating can have very good anti-oxidation corrosion effect, Thick coating not only can have very good anti-oxidative and anti-corrosion effect, but also can have the heat insulation effect. Can be used as coating materials such as ceramic, glass, metal, widely used in metallurgical furnaces, quartz heating tube plating white, coal-fired power plant coal pulverizing system impact corrosion and wear coating, coating for automobile engine spark plug ceramic coating for carbon deposition prevention, steel LOGO LOGO LOGO, toughened glass, high temperature resistant glass printing ink, aerospace and other industries.
Spraying at room temperature on the surface of glass, ceramics, metals, etc., drying at low temperature or self-drying at room temperature, has good adhesion to the surface, hard, wear-resistant, scratch-resistant, non-cracking and excellent performance. Properties: high temperature resistant coating appearance: white, viscous liquid. Maximum resistance to temperature: 1500 ℃, a short period of time can be resistant to 1800 ℃ or higher. Table dry: 30min, minimum recoat interval: 2h; Hardness: 5H, good oil resistance; Acid and alkali resistance. High temperature resistant coating, coating thickness: according to customer needs, can be arbitrary thickness, construction of layers of spray or brush, if you need the thickness of the thicker coating, can besmear first layer, thickness can be controlled in 1 to 2 mm, and then in the low temperature about 80 ℃ or room temperature after thoroughly dry, continue to daub is on the second floor construction, three layers, four layers. It can only be used at high temperature after completely drying.
