manufacturing process. The facilities have vast compressed air systems that are not immune to costly leaks or inefficiencies. Natural gas is also used for various types of production equipment. Ventilation air flow on the production floor, the HVAC system, and the paint booth are all places where gas flow measurement can help check for inefficiencies.
Testing radiator heat exchangers and torque converters for leaks is a common use for helium. Helium can also be mixed with argon to improve shielding gas characteristics for laser welding or used in the production of air bags. It is also important for high pressure gas quenching commonly used with low pressure carburizing to minimize distortion in critical components.
Oxygen is used in foundries that make automotive coatings, as a plasma cutting gas, an assist gas for laser cutting, and is sometimes added in small quantities to shielding gases.
As a component of heat treating atmosphere, hydrogen reacts with oxygen to produce a bright finish on steel parts. It is also used, either alone or as part of a mix, as a quench gas for high pressure gas quenching because of its high heat transfer properties. When used as an alternate fuel, in either a fuel cell or directly in an internal combustion engine, hydrogen also plays a key role in reducing emissions.
Assembly plants, use argon in combination with other welding gases to weld auto components such as exhaust systems, suspensions, seats, axles, and other components in order to block ambient air that might reduce the quality of welds with any material. It’s also commonly used in airbags.
Nitrogen is ideal for processes like tire curing, autoclave inerting, and heat treating for various automotive components. It is also used as an assist gas for laser cutting and enhances plasma-cutting processes. It can also be used to shrink-fit engine and transmission parts, and to manufacture electronic components for seats, stereo systems, anti-lock brakes and air conditioning.
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