The industry with the largest usage of high-purity helium gas in China

Helium, high-purity helium

Firstly, let's take a look at the applications of high-purity helium gas in various industries

Aerospace: High purity helium is widely used in the entire process of aerospace and aircraft manufacturing, from manufacturing to flight. High purity helium purification hydrogen system is used for space flight, and ground and flight fluid systems are used as boosters. In addition, high-purity helium gas is also used as a lift source for meteorological and other observation balloons.

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Automotive and transportation equipment: High purity helium gas is used for testing important automotive components such as radiators, heat exchangers, air conditioning components, fuel tanks, torque converters, etc., to ensure compliance with quality specifications. In addition, high-purity helium can also be used together with argon and is increasingly used for inflating airbags.

Diving: During diving, it can effectively eliminate nitrogen anesthesia, reduce deep breathing resistance, and shorten decompression pause time. High purity helium oxygen mixture can allow divers to stay in water for longer periods of time. The deeper the diving, the higher the concentration of high-purity helium gas, and the deeper the diver dives, the longer the welding time.

Electronics: High purity helium gas plays an important role in semiconductor, liquid crystal panel, and fiber optic manufacturing, enabling rapid cooling of parts, thereby improving productivity, controlling heat transfer rate, enhancing production efficiency, and reducing defects; In addition, high-purity helium can also serve as a carrier in the production process.

Welding and metal processing: The inertness of high-purity helium gas at arc temperature makes it an ideal gas for welding high thermal conductivity materials such as aluminum, stainless steel, copper, magnesium alloys, etc. It can also be used as a quenching gas and furnace gas in heat treatment processes to improve the durability and quality of parts.

Healthcare: High purity helium gas is an ideal cryogenic gas for magnetic resonance and nuclear magnetic resonance superconducting magnets, achieving a cryogenic temperature of -451 degrees Fahrenheit and effectively obtaining high-resolution images of internal organs and tissues.

Most people know about the MRI machines in hospitals, which doctors can use to take three-dimensional images of the human body to diagnose diseases. Liquid high-purity helium gas has two uses: firstly, during the manufacturing process, it is used to cool the internal magnets until the product is tested close to absolute zero, and then sent to the hospital as a finished product; Secondly, the hospital's magnetic resonance imaging machine must maintain the temperature of the magnet to ensure continuous operation. To meet this requirement, it is necessary to fill it with high-purity helium gas. A slightly older magnet takes one year to produce. Fill with 2000L of high-purity helium gas, and the new magnet also needs to be filled with 500L of high-purity helium gas every year. Although manufacturers are making efforts to improve magnetic resonance imaging technology, they hope to operate at warmer temperatures (-196); The second option is to switch to a closed cycle freezer to maintain a low temperature state, but it will also take nearly 5 years to develop new instruments.

According to statistics, magnetic resonance imaging equipment accounts for 20% of the global consumption of high-purity helium gas, making it the industry with the highest consumption of high-purity helium gas. Although the demand for magnetic resonance imaging equipment is decreasing in developed countries, the demand in developing countries is still growing strongly, therefore, the demand for liquid high-purity helium remains strong. Other major users of high-purity helium gas include welding (17%), balloons (8%), fiber optic production (6%), leak detection (5%), and scientific research (4%).