Safety knowledge for the use of argon gas

Nitrogen is generally considered a safe gas by most people, but bottled nitrogen or large amounts of nitrogen can cause suffocation, and high-pressure nitrogen can also cause physical harm, which is also something to be aware of.

2025-01-07

Principle of hydrogen production by electrolysis of water, electrolysis voltage, and water consumption

The so-called electrolysis is the process of using direct current to decompose electrolytes dissolved in water into new substances.

2025-01-07

Middle East conflict may escalate, helium market may receive further support

The conflict between Iran and the United States may have further escalation intentions. Qatar's helium supply may be affected to some extent, and the Chinese helium market should be closely monitored.

2025-01-07

Industry experts warn that helium on Earth is running out

At present, the main source of helium is natural gas separation, and with the further utilization of helium, it will decrease year by year.

2025-01-07

Purification method of argon gas

For gases, purity is a standard for measuring whether the gas is of high quality. Argon gas, as an inert gas, can be used as a protective gas for manufacturing single crystals and polycrystals. In order to improve the quality of silicon crystals, it is crucial to choose high-purity argon gas, which can not only prolong the service life of crystals but also meet market demand.

2025-01-07

The 'helium shortage' makes Japanese researchers lament: 'unable to conduct experiments'

According to the Japanese newspaper "Nikkan Kogyo Shimbun", a global "helium shortage" is causing a huge impact on major research institutions in Japan. Due to the Japanese government's priority in ensuring the satisfaction of industrial helium demand, major research institutions including the Japan Aerospace Exploration Agency and the Institute of Physical Properties at the University of Tokyo are struggling with how to obtain helium gas.

2025-01-07

Reasons for porosity in argon arc welding

Argon arc welding is a welding method that uses the inert gas "argon" as a protective gas. It is sprayed from a nozzle to form an inert gas protective layer in the welding area, isolating air from entering and thus protecting the arc and molten pool.

2025-01-07

The main uses of the eight major industrial gases

Oxygen is one of the earliest industrial gases developed and widely used in various fields of national economy and social development. It is mainly used as a combustion supporting gas for metal welding, cutting, and various combustion devices, as well as an oxidizing gas for certain process flows. The metallurgical industry, including steel smelting and non-ferrous metal smelting processes, extensively uses oxygen, which has a significant effect on strengthening the smelting process and achieving increased production and energy conservation.

2025-01-07

Safety knowledge on the use of oxygen

Under normal pressure, when the concentration of oxygen exceeds 40%, oxygen poisoning may occur. When inhaling 40% -60% oxygen, discomfort and mild cough may occur behind the sternum, leading to chest tightness, burning sensation behind the sternum, and difficulty breathing. Coughing may worsen, and in severe cases, pulmonary edema and even respiratory distress syndrome may occur. When the inhaled oxygen concentration is above 80%, facial muscle twitching, pale complexion, dizziness, tachycardia, and collapse occur, followed by systemic tonic convulsions, coma, respiratory failure, and death.

2025-01-07

The properties and uses of helium gas

The industrial application of helium utilizes its low boiling point of -268.9 ℃, and liquid helium can be used for ultra-low temperature cooling. Helium is indispensable in the widely studied applications of superconductors in fields such as maglev trains. In addition, due to its inert chemical properties and lighter weight than air, helium is commonly used as a filling gas in spacecraft or advertising balloons, and this use is also well-known. Helium is widely used in mixed gases for respiration in the field of ocean development, as well as in the cooling of superconducting electromagnets in magnetic resonance imaging equipment in the medical field.

2025-01-07