Overview of Heating Temperature of Ceramic High Temperature Resistant Coatings
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Regarding the temperature resistance regulations of high-temperature ceramic coatings, the temperature resistance must be above 280 ℃, the coating is stable, acid alkali resistant, and thermal shock resistant, and has a certain energy-saving effect in application, protecting the environment and benefiting people's livelihoods. Energy conservation has been regarded by Chinese experts as the "fifth energy" after the four important energy sources of coal, oil, natural gas, and electricity.
Based on the current situation of energy utilization efficiency in China, energy-saving is more economical than building new boiler rooms, adding heating units, developing hydropower, thermal power, and nuclear power. Therefore, the country has established "Resources and Energy: Conservation and Environmental Protection" as the basic national policy, increased efforts in governance, improved coal utilization efficiency through various new technological measures such as comprehensive utilization of coal and fine coal technology, and adopted environmental protection measures such as sulfur removal and dust removal equipment. However, researchers at Zhisheng Weihua High Temperature Coatings have found that various industrial boilers, combustion furnaces, blast furnaces, induction furnaces, vaporizers, smelting furnaces, rotary kilns, aerospace, reactors, chimneys, molds, exhaust pipes, and nuclear reactors in China all have poor insulation and corrosion conditions. Currently, there is no effective way to protect them, and a small number of boilers are solved by spraying nickel based coatings or other metal coatings, Although it has certain effects, the cost is high.
Ceramic high-temperature coatings are widely recognized as a new type of material with stable oxidation resistance, corrosion resistance, wear resistance, and thermal insulation. Coatings are applied in industrial boilers, combustion furnaces, blast furnaces, induction furnaces, vaporization furnaces, smelting furnaces, rotary kilns, aerospace, reactors, chimneys, molds, tailpipes, and nuclear reactors, with high bonding strength and matching thermal expansion coefficients. Therefore, the development prospects of high-temperature resistant ceramic coatings are promising.
At present, although the high-temperature wear-resistant and corrosion-resistant coatings used domestically and internationally have their own advantages, they often overlook each other and cannot simultaneously meet the requirements of high-temperature wear resistance, corrosion, oxidation, good thermal conductivity, and low cost.