Kaitsegaasid
Kaitsegaasid, also known as shielding gases or protective gases, are inert or semi-inert gases used in various industrial processes to prevent undesirable chemical reactions with the atmosphere. Their primary function is to displace reactive gases, such as oxygen and nitrogen, from the area where a process is taking place. This is particularly crucial in welding, where a shielding gas prevents oxidation and contamination of the molten metal, ensuring a strong and clean weld. Common welding gases include argon, helium, and mixtures containing carbon dioxide.
Beyond welding, kaitsegaasid find applications in metallurgy for processes like heat treatment and sintering, where they