The atmosphere furnace is a special heating unit that can control the atmosphere surrounding the material to be heated. These materials can be suited to different ones and densify the product, thus improving its performance. This heating system is usually used during an entire material production process, while other times it may only be performed on it at the final stages, depending on what will fit best to a given manufacturer. The atmosphere furnaces are mostly used in industrial labs for carrying out heat treatments under controlled environments where argon (Ar) or nitrogen (N2) is employed to create an inert atmosphere. So there would be safety systems built around hydrogen gas so that it does not get blown up during usage.

Atmosphere furnaces create vacuum up to 0.1 MPa using a rotary vane oil-filled vacuum pump first, then they purge inert gas (argon or nitrogen gas) to avoid the formation of oxides on metal surfaces before these furnaces are used for operations like annealing, brazing, and heat treatment of material that might oxidise readily.

The major purpose of atmosphere heat treatment furnaces is to provide an environment where various kinds of heat treatment experiments can be conducted at controlled temperatures with specific atmospheres for individual projects. The tightly sealed, controlled environment guarantees the success of projects since the right atmosphere should prevail within them. For a given project’s success, a precise mixture of gases being another key element in an atmosphere furnace necessitates correct measurement made for each particular gas concerned. The gases are mixed again in another chamber and then introduced into the furnace chamber. For this reason, this separate chamber should be kept free from external air to avoid disturbance of the gaseous mixture that may result in futility of the entire project.