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Chemical Vapor Deposition (CVD)

A meticulous way of creating a protective layer on the material surface

Chemical vapor deposition (CVD) is a process that allows the creation of a deposit on the surface of mechanical parts, to protect them from oxidation and corrosion. This protective coating is frequently used in aeronautics, especially on the reactors’ turbine blades which run at very high temperatures and in a very oxidizing atmosphere. This process is usually realized at temperatures around 1000°C and 1150°C under neutral gas like Argon and consists of creating a sealed enclosure on which mechanical parts are placed. They are either manually made or in a totally automated way to optimize cycles

One group of CVD furnaces is industrial furnaces for thermomechanical treatments, forging, and conventional heat treatment. These furnaces are designed to coat the vanes and blades of jet engines using a treatment process called aluminizing, also known as VPA. The advantage of this aluminizing process is the ability to double the production by separating the treatment and cooling cycles of the loads, resulting in an unparalleled ROI. The loads are placed in boxes under an airtight bell in which the aluminizing treatment is carried out under a shielding gas.

another group of these furnaces is dedicated to the semiconductor and photovoltaic industries.

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