Machining process of liquid pipe for gas-liquid separator

Abstract

The machining process of liquid pipe for gas-liquid separator includes setting liquid outlet in the bottom of the liquid storage unit, forming downward vertical turned edge, expanding the inner iron tube, pressing the inner iron tube into the turned edge, setting three or four raised ribs with upper flange in the expanded part of the inner iron tube for interference fitting between the inner irontube and the tubular turned edge of the liquid storage unit body while retaining welding interval, setting the outer copper tube inside the expanded port of the inner iron tube and final welding to form one integral. The machining process of the present invention is simple, reasonable, high in production efficiency and high welding quality.

Description

technical field

[0001] The invention relates to a welding processing method, in particular to a processing method for an infusion tube of a gas-liquid separator. Background technique

[0002] In the existing traditional household air-conditioning gas-liquid separator (accumulator) such as figure 1 As shown, it is welded with a copper infusion tube 2 at the bottom liquid outlet 3 of its liquid reservoir body 1 and connected with the bottom of the liquid reservoir body, its enlargement is as follows figure 2 shown. At present, this technology is widely used to achieve mass production. Because the infusion tube is made of copper, its manufacturing cost is 3 to 4 times that of iron infusion tubes, and the iron tube is used as the internal infusion tube of the gas-liquid separator (reservoir). It does not affect the performance of the gas-liquid separator, but the application of low-cost iron infusion pipes is affected because the welding technology between the liquid reservoi...

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