Joke Collection Website - News headlines - What is argon gas?
What is argon gas?
The chemical formula of Argon is: ar. ? Argon is an inert gas, which does not react with other substances at room temperature and is insoluble in liquid metal at high temperature, so it can show its superiority when welding non-ferrous metals. Argon is used for bulb inflation and arc welding of stainless steel, magnesium and aluminum, that is, "argon arc welding".
It is forbidden to knock and collide the argon bottle in use, and it is forbidden to bake with fire when the bottle valve is frozen. Do not use electromagnetic lifting and loading and unloading machine to carry argon cylinders; Sun protection in summer; The gas in the bottle cannot be used up, and the residual pressure of the argon bottle returned to the factory should be not less than 0.2MPa;; Argon cylinders are usually placed upright.
Application:
Welding shielding gas. As a shielding gas in the welding process, argon can avoid the burning loss of alloy elements and other welding defects caused by it, thus making the metallurgical reaction in the welding process simple and easy to control and ensuring the high quality of welding.
Through the laser remelting test of HT250 gray cast iron, the formation mechanism of porosity in the remelting zone of the sample under different atmosphere protection conditions was studied. The results show that the pores in the remelting zone are precipitation pores under the protection of argon. Under the open condition, the pores in the remelting zone are precipitation pores and reaction pores.
Other uses. Electronics, lighting, argon knife, etc.
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