Helium is mainly used in the following industries: aerospace, diving, inflatable balloons, electronics (leak detection), fiber optics.
1. Aerospace
Helium is widely used in the aerospace and aircraft manufacturing industries from manufacturing to flight. Space flight operations use helium to purify hydrogen systems, and ground and flight fluid systems use it as a pressurizer. In addition, helium is used as a source of lift for meteorological and other observation balloons.
2. Automotive and Transportation Equipment
Helium is used in the testing of critical automotive components such as radiator exchangers, air conditioning components, fuel tanks and torque converters to ensure that they meet quality specifications. In addition, helium can be used in conjunction with argon and is increasingly used in airbag inflation operations.
3. Diving
Diving with a combination of oxygen and helium effectively eliminates nitrogen narcosis, reduces deep breathing resistance and shortens decompression stops. The helium-oxygen mixture allows the diver to stay deeper in the water for longer periods of time. The deeper the dive, the higher the helium concentration, the deeper the diver can go and the longer the weld time can be achieved.
4, electronics
Helium plays an important role in the manufacture of semiconductors, liquid crystal panels and fiber optic wires, enabling rapid cooling of components to increase productivity, and controlling the rate of heat transfer to improve productivity and reduce defects; in addition, helium can also be used as a carrier gas in the production process.
5. Healthcare
As the ideal cryogenic gas for magnetic **** vibration and nuclear **** vibration superconducting magnets, helium can achieve deep freezing temperatures of -451 degrees Fahrenheit, which is effective for obtaining high-resolution images of internal organs and tissues.
6, welding and metal processing
Helium's inertness under arc temperature conditions makes it an ideal gas for welding high thermal conductivity materials such as aluminum, stainless steel, copper and magnesium alloys, and it can also be used as a quenching gas in the heat treating process as well as a furnace gas to enhance the resistance and quality of parts.
Baidu Encyclopedia-Helium