What is an anti-oxidation nano-functional ceramic coating? What are its technical principles and application effects? This article will explain it all.
1. What is an anti-oxidation nano-functional ceramic coating
Anti-oxidation nano-functional ceramic coatings are functional thin films applied to the surface of a substrate using nano-ceramic materials as a base material. Their core function is to prevent oxidation in harsh environments such as high temperatures and corrosion. They also offer wear resistance and high-temperature resistance.
The nano-scale grain structure gives the coating a denser characteristic. Compared with traditional ceramic coatings, its anti-oxidation efficiency is significantly improved. This coating can not only prevent oxidation, but also be compatible with a variety of substrates, including metals and alloys.
2. Technical principle
The technical principle can be mainly divided into the following points.
(1) Using a specific crystal form of alumina ceramic nanopowder as the base material. Under the action of nano-ceramic binder and nano-catalyst, low-temperature curing can be achieved. At temperatures above 500 degrees Celsius, the nano-ceramic particles are connected to each other, and the grains fuse together to achieve sintering densification.
(2) The active substances in the coating material can fully fill the residual voids of the ceramic coating under high temperature, enhancing the self-healing ability and adhesion of the coating.
(3) Ceramic whisker materials are used to achieve inter-grain connection of ceramics and enhance the toughness of the coating.
(4) The expansion coefficient of the coating is adjusted to match the billet during the heating process, and it shrinks rapidly during the cooling process, so that it can be completely removed during the descaling process.
3. Application effect of high-temperature anti-oxidation technology for billets
High-temperature protective coating technology can reduce oxidation and burning losses by over 90%. This significantly improves steel yield during production. It also directly reduces the difficulty of removing iron oxide scale, thereby alleviating surface element depletion and improving steel production and quality.
Therefore, the research and application of multifunctional high-temperature protective coating technology has more important practical significance in terms of anti-oxidation, anti-decarburization, anti-element depletion of high-value-added steel grades and improving the descaling level and surface quality of rolled products.
The anti-oxidation nano-functional ceramic coating launched by Henan Ruitai Lianxin Refractory Materials Co., Ltd. can also be used in high-temperature kilns, and the effect is also very significant. The company has specialized in refractory materials for 20 years. They not only provide customers with high-quality refractory bricks but also offer optimal kiln operating solutions. Choosing Ruitai Lianxin means choosing strength.