Machining process of pipe fitting

Abstract

The invention discloses a machining process of a pipe fitting. The machining process comprises the following steps that 1, castings are prepared, wherein the castings comprise a mother pipe and a branch pipe, the surface of the mother pipe and the surface of the branch pipe perform descaling and then perform cleaning and drying by soft water; 2, the castings are installed, wherein one end of the branch pipe serves as a connecting end to be inserted into the mother pipe, and the branch pipe and the mother pipe are ensured to be concentric; 3, welding is carried out, wherein the connecting position of the branch pipe and the mother pipe is welded; and 4, post-machining is carried out, and the surface of a welded part is grinded. The machining process has the advantages that the two castingsare simple in installation mode, the two castings which are installed can keep stable and straight, so that the welding process is more convenient, the connection of the welded two castings is more compact, the air tightness is ensured, and the situation that the air tightness is affected due to scratching of the machined pipe fitting is prevented.

Description

technical field [0001] The invention relates to the technical field of pipe fittings, in particular to a processing technology of pipe fittings. Background technique [0002] Connecting pipe fittings are widely used in air conditioners and other equipment. The existing processing method of connecting pipe fittings is to install through the combination of different pipe fittings. In an ideal state, the sealing performance of the installation is improved, but problems such as excessive accumulation of solder and uneven distribution of solder are prone to occur at the joint, and the surface quality after welding is poor. If the solder accumulates, it will be damaged during transportation and use. It is easy to scratch, and the solder on the surface is easy to be knocked off, which is not conducive to the airtightness of the connection. And it is relatively difficult to install two metal pipe fittings with interference. Contents of the invention [0003] In order to overcome...

AI Technical Summary

Problems solved by technology

[0002] Connecting pipe fittings are widely used in air conditioners and other equipment. The existing processing method of connecting pipe fittings is through the combination and installation of different pipe fittings. In an ideal state, the sealing performance of the installation is improved, but problems such as excessive accumulation of solder and uneven distribution of solder are prone to occur at the joint, and the surface quality after welding is poor. If the solder accumulates, it will be damaged during transportation and use. It is easy to scratch, and the solder on the surface is easy to be knocked off, which is not conducive to the airtightness of the connection

Moreover, it is not easy to install two metal pipe fittings with interference