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 protect materials from oxidation at high temperatures. In the food industry, they are used for modified atmosphere packaging (MAP) to extend the shelf life of perishable goods by reducing spoilage caused by oxygen. Electronics manufacturing also utilizes shielding gases to protect sensitive components during soldering and other high-temperature operations. The specific gas or mixture of gases chosen depends on the application's requirements, considering factors such as reactivity, cost, and effectiveness in achieving the desired protective environment. The careful selection and application of kaitsegaasid are essential for quality control and process efficiency in many modern industries.