The mixed gas welding
2012-04-23 by seoer6
Gas asylum welding, especially the asylum welding of carbon dioxide gas is gradually instead of manual Welding Electrode . Replace manual welding of carbon dioxide gas asylum welding greatly advances the welding obedience, has improved the quality of welding in the welding industry, it is a qualitative Pentium. However, the carbon dioxide gas the asylum welding in the welding large splash, constantly disturb the further growth of the welding industry. Argon / carbon dioxide mixed gas welding for asylum presented for this difficulty, at the same time greatly depressed the welding capital. Argon / carbon dioxide mixed gas than carbon dioxide gas asylum welding, the asylum gas welding mild steel a force aspiring
Argon / carbon dioxide mixed gas welding machine function and profile of asylum forming
Argon / carbon dioxide mixed gas than the oxidation of pure carbon dioxide is relatively much lower. Carbon dioxide in the arc is easy to differentiate into carbon monoxide and oxygen, differentiation of the gas in the reaction with the Mn, Si and other elements in the wire under low temperature conditions. Therefore, the adoption of a large number of Mn, Si and other elements in the gas welding of pure carbon dioxide asylum loss, the loss rate of about 40%. The adoption of argon / carbon dioxide mixed gas welding, because the carbon dioxide in the cut, the wire elements in the loss of a substantial reduction, the largest sector in the wire elements can be integrated into the weld pool to, as is bound to strengthen the weld machine function, anti- The tensile strength and toughness are enhanced response. The experiments confirmed that the adoption of 80% Ar +20% CO2 mixed gas welding, elements of the loss of about half of the gas of pure carbon dioxide asylum. Because oxygenated percentage reduction in the argon / carbon dioxide mixed gas, the weld profile oxides also greatly reduce the weld profiles are also more than an overview of the Gas Shielded Welding Wire of pure carbon dioxide asylum creamy. Therefore, the argon / carbon dioxide mixed with air in the shape of the welding machine functions and profiles much better than the performance of pure carbon dioxide gas.