Gas protection cover for welding non-ferrous metals

The utility model provides a gas protective cover for welding nonferrous metals, which comprises a protective cover body and a protective cover fixing mechanism, the protective cover body is detachably mounted on the protective cover fixing mechanism, an inert gas connecting port is arranged on the protective cover body, and a welded workpiece is moved to the lower part of the protective cover body. The protection cover body emits inert gas to wrap a workpiece, a sintering plate is installed in the protection cover body and connected with the inert gas connector in a sealed mode, and a large number of irregular air holes are formed in the sintering plate. External inert gas enters the protection cover body through the inert gas connecting port and is uniformly released through the irregular air holes in the sintered plate. The sintering plate is installed in the protection cover body, inert gas is evenly released from the periphery of the sintering plate through the irregular air holes in the sintering plate,