Hexagonal boron nitride provides chemical resistance and reduces corrosion
Challenge
In the processing of metals, glass, plastics, and other materials, molding and casting tools such as sprue channels, distributors, molds, and metering systems are constantly exposed to chemical and thermal stresses. Materials such as graphite, oxide ceramics, and metallic alloys each have their place and have proven themselves in numerous applications. However, in particularly reactive or thermally extreme environments, they sometimes reach their physical or chemical limits.
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Consequence
The combination of shorter component lifespans and increasing quality fluctuations leads to lower overall process reliability. At the same time, cleaning and maintenance costs rise because equipment must be repaired more frequently. These factors increase the risk of unplanned equipment downtime, which in turn directly contributes to higher production costs and reduced overall process efficiency.
THE HENZE SOLUTION
Boron nitride components and coatings offer exceptionally high chemical resistance. This property profile is complemented by oxidation stability at high temperatures, ensuring that boron nitride remains reliable even under demanding thermal conditions.
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Frequently Asked Questions
Why is chemical resistance a critical success factor in high-temperature industrial processes?
In many industries—such as metallurgy, sintering, the glass industry, and the energy and battery sectors—materials are subjected to extreme stress. They are constantly exposed to aggressive media, hot molten metals, process gases, or reactive residues. If a material cannot withstand these stresses and is corroded, this inevitably jeopardizes the stability of the entire process and drastically reduces the service life of the plant components.
How do boron nitride products from Henze BNP behave towards aggressive substances?
Boron nitride is characterized by the fact that it is largely chemically inert. Our HeBoSint® components, such as melting pots or nozzles, are chemically resistant to many molten metals and can even withstand aggressive alloy components with ease. Just how extreme this stability is can also be seen in the aerospace industry: even in the aggressive environments of plasma drives for satellites, the material remains stable and does not react with the drive plasma..
Which specific applications benefit most from this chemical stability?
Chemical resistance is particularly indispensable in metal and aluminum casting as well as in powder metallurgy (metal atomization), as it ensures the longevity of tools and nozzles even during high-volume casting. In high-temperature furnace construction, its chemically inert behavior ensures safe and efficient process control. This property is also essential in laser processing: Because boron nitride is extremely temperature-stable and chemically inert, it reliably prevents hot metal splashes from adhering to the component.
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