The application of nitrogen in all walks of life
發(fā)布時(shí)間：2020-12-20 瀏覽次數(shù)：919
Nitrogen is a colorless, non-toxic, odorless inert gas with low production cost and high efficiency. Therefore, nitrogen can be seen in all walks of life. With the progress of technology and the development of economic construction, the application of nitrogen is increasingly widespread, The following Holang will introduce the role of nitrogen in all walks of life for you.
1. Metallurgy, metal processing industry
Nitrogen is widely used in the metal industry. In metal heat treatment, nitrogen based atmosphere heat treatment with nitrogen as the basic component is a new technology and new process which is safe, environmental protection and energy saving. At the same time, almost all heat treatment processes, including carburizing, nitriding, normalizing, tempering, bright annealing, spheroidizing annealing, recrystallization annealing, etc., can be completed by nitrogen-based atmosphere, and the metal parts treated can be comparable to the traditional endothermic atmosphere treatment both in quality and appearance.
2. Petrochemical industry
In the chemical industry, nitrogen is widely used in chemical raw gas, pipeline purging, atmosphere replacement, protective atmosphere, product transportation and so on. In the petroleum industry, nitrogen can improve petroleum processing and refining processes, help in oil storage and oil and gas field well pressure, pipeline cleaning purge and solvent recovery , etc.
3. Pharmaceutical industry
Nitrogen can meet the special needs of the pharmaceutical industry after sterilization, dust removal, water removal and other treatment. In this industry, nitrogen is used in pharmaceutical packaging, pharmaceutical replacement gas, pharmaceutical nitrogen filled packaging, transportation, as well as Chinese herbal medicine anti-moth, anti-corrosion protection, scientific research and medical deep hypothermia and cryotherapy.
4. Food preservation
The high nitrogen and low oxygen environment can slow down the metabolism of food, thereby slowing the Oxidative metamorphism and spoilage of food, therefore, the preservation of fruits, vegetables, tea and other food can be achieved by Nitrogen filling. In addition, nitrogen filled packaging can also maintain the shape of food, dry, crisp, color, flavor, etc.; In the production of beer beverages, nitrogen can also be used as a process gas, which not only plays the role of preservation and storage, but also improves the taste of beer beverages.
5. Electronics industry
In the electronics industry, nitrogen is mainly used in wave soldering, reflow welding, crystal, piezoelectric, electronic ceramics, electronic copper strips, batteries, electronic alloy materials, etc. The packaging, sintering, annealing, reduction, storage of electronic products, the atmosphere protection, cleaning, and chemical recycling of semiconductor and integrated circuit manufacturing processes in the electronic industry are also inseparable from nitrogen. The electronics industry generally has high requirements for nitrogen, usually requiring 99.99% or 99.999% purity of nitrogen. At present, high purity nitrogen is widely used as carrier gas and protection gas in the production process of color TV picture tube, large-scale integrated circuit, liquid crystal and semiconductor silicon wafer.Shipping industry
6. Analytical laboratory
Nitrogen can be used as a purging gas supply for laboratory instruments to maintain pressure, etc. In the experiment process, nitrogen can also prevent the experimental objects from being polluted and oxidized.
7. Shipping industry
In the shipping industry, nitrogen is commonly used as the driving gas of dry powder fire extinguishing system and chlorinated hydrocarbon fire extinguishing system, as a sealing cover gas to prevent the deterioration of oil, and inert the cargo compartment, which can not only prevent explosion, but also maintain the quality of the cargo, so that it does not deteriorate or pollution.
8. Lase cutting
Nitrogen in laser cutting solves many of the difficult problems that oxygen cutting is difficult to process. Nitrogen cutting materials completely rely on laser energy melting, nitrogen blowing out the slit at the same time because of its inactivity, the reaction is stable and uniform, to avoid excess chemical reaction, and nitrogen has a cooling, protective effect, nitrogen cutting quality, fine and smooth section, will not produce oxygen cutting the inevitable oxide layer.
9. 3D-printing
Nitrogen is an economical, readily available and chemically stable gas that is key to gas solutions in metal 3D printing. Metal 3D printing equipment usually requires a sealed reaction chamber, which can prevent the leakage of toxic and harmful by-products, and eliminate the effect of the presence of oxygen on the material, and the injection of nitrogen can meet this need. It is filled into the sealed cavity to play the role of gas circulation and protection of anaerobic materials.