Flame welding reservoir straight pipe and cup body pressing fixing welding method

Abstract

The invention provides a flame welding reservoir straight pipe and cup body pressing fixing welding method. The welding method comprises the following steps that 1, a straight pipe and a cup body aremanufactured through a pressure casting method; 2, salient points are welded on the straight line section part of the cup body; 3, the straight pipe is pre-arranged at the opening in the cup body; 4,the straight pipe is pressed into the cup body through a hydraulic machine; and 5, welding flux filling is carried out, and the straight pipe and the cup body are welded together. According to the pressing fixing welding method, gaps at the periphery of the position between the straight pipe and cup body are guaranteed, the fluidity of welding flux at the periphery is improved, the leakage abnormity caused by insufficient welding flux filling is reduced, and the manufacturing cost is reduced; and the pressing fixing welding method is simple and practical, suitable for all spinning type reservoir machining processes, and capable of being suitable for various air conditioner compressor spinning type reservoirs.

Description

technical field [0001] The invention relates to the technical field of liquid storage devices, in particular to a flame welding method for press-fitting and fixing a straight tube of a liquid storage device and a cup body. Background technique [0002] At present, when flame welding the straight pipe and the cup of the liquid reservoir, it is necessary to weld the straight pipe and the cup together, and the current welding method is the clearance fit welding method, which means that the straight pipe and the cup pass through Gap fit connection, and then weld the two together, and the disadvantage of gap fit welding is that the gap between the straight pipe and the cup body is not uniformly affected by the welding tooling, resulting in poor solder penetration, abnormal leakage, and higher quality risks. big. Therefore, it is particularly important to solve the problems of poor solder penetration and abnormal leakage caused by clearance fit welding. Contents of the inventio...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a flame welding method for press-fitting and fixing the straight pipe of the liquid reservoir and the cup body. By changing the way the straight pipe of the liquid reservoir is inserted into the cup, it can be easily put into Change to the equipment press-in fixing method, add four bumps to fix the straight pipe at the straight section of the cup body, to ensure that the gap between the straight pipe and the cup body is even, to ensure the welding penetration, reduce the risk of product leakage, and solve the gap fit Welding results in poor solder penetration and abnormal leakage