Machining process of pipe fitting

A processing technology and pipe fitting technology, applied in the processing technology field of pipe fittings, can solve the problems of uneven distribution of brazing filler metal, prone to scratches, poor surface quality, etc., and achieve the effect of simple installation method, air tightness assurance, and convenient welding.

Inactive Publication Date: 2018-04-20
江苏五洲管业有限公司
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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

Method used

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Embodiment Construction

[0013] The present invention will now be described in further detail.

[0014] A processing technology for pipe fittings, including the following steps: (1) Casting preparation: the casting includes a stainless steel main pipe and a copper branch pipe, the inner diameter of the main pipe is 0.05-0.08mm larger than the outer diameter of the branch pipe, and the mother pipe is firstly ground by a grinder. Remove the scale on the surface of the pipe and branch pipe, then wash it with soft water and dry it. After drying, make a circle of bumps on the outer surface of the branch pipe near the connection end. The sum of the diameter and twice the height of the bump is equal to the inner diameter of the main pipe; (2) Casting installation: insert one end of the branch pipe into the main pipe as the connecting end, and ensure that the branch pipe and the main pipe are concentric; (3) Furnace brazing Welding is carried out at the connection between the branch pipe and the main pipe, an...

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Abstract

The invention discloses a processing technology of pipe fittings, which comprises the following steps: (1) Casting preparation: the casting includes a main pipe and branch pipes, the surfaces of the main pipe and branch pipes are first descaled, then cleaned with soft water and dried; (2 ) Casting installation: Insert one end of the branch pipe into the main pipe as the connection end, and ensure that the branch pipe and the main pipe are concentric; (3) Welding: Weld at the connection between the branch pipe and the main pipe; (4) Post-processing: After welding The surface of the weldment is ground flat. The installation method of the two castings in the present invention is simple, and the installed two castings can be kept stable and upright, which makes welding more convenient, and the connection of the welded two castings is also more compact, ensuring air tightness, and the processed by the present invention Fittings will not suffer from airtightness due to scratches.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/00B23K101/06
CPCB23K31/00B23K2101/06
Inventor 王浩
Owner 江苏五洲管业有限公司
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