Pipe fitting and shell welding method and application

A welding method and shell technology, applied in welding equipment, welding equipment, plasma welding equipment, etc., can solve the problems of high welding cost and poor welding quality, and achieve the effects of reducing production costs, ensuring quality, and high cleanliness

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of poor welding quality and high welding cost of the existing welding methods for shells and pipes, the present invention provides a welding method and application of pipe fittings and shells with lower welding costs and excellent quality after welding

Method used

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  • Pipe fitting and shell welding method and application
  • Pipe fitting and shell welding method and application
  • Pipe fitting and shell welding method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The welding method of the pipe fitting and the shell provided by this embodiment includes:

[0027] One end 11 of the pipe fitting is made of steel material, one end 11 of the pipe fitting extends from the neck 21 of the casing into the casing 2, and the neck 21 of the casing is made of steel material; the welding method using electric energy as a heat source One end 11 of the pipe fitting and the neck 21 of the casing are welded by welding.

[0028] The welding method of the pipe fitting and the casing provided in this embodiment is applied to the welding of the air intake pipe and the casing of the compressor accumulator, such as Figure 1a shown. Among them, the shell 2 is a liquid accumulator shell made of steel material (only the end cover part of the shell is shown in the figure); the pipe fitting 1 is the air intake pipe of the liquid accumulator, and the pipe fitting 1 is a composite pipe with a One end 11 made of stainless steel material and the other end 12 ...

Embodiment 2

[0036] The welding method of the pipe fitting and the shell provided by this embodiment includes:

[0037] One end 11 of the pipe fitting is made of steel material, one end 11 of the pipe fitting extends from the neck 21 of the casing into the casing 2, and the neck 21 of the casing is made of steel material; the welding method using electric energy as a heat source One end 11 of the pipe fitting and the neck 21 of the casing are welded by welding.

[0038]In this embodiment, the welding method using electric energy as the heat source is arc welding. Preferably, the arc welding is gas tungsten arc welding. However, the present invention is not limited to this. In other embodiments, the arc welding can be any one of gas metal arc welding, plasma welding, or quasi-ion welding.

[0039] In this embodiment, the casing 2 is a compressor accumulator casing made of steel material, and the pipe fitting 1 is an air intake pipe of the compressor accumulator, such as Figure 2a shown...

Embodiment 3

[0045] The welding method of the pipe fitting and the shell provided by this embodiment includes:

[0046] One end 11 of the pipe fitting is made of steel material, one end 11 of the pipe fitting extends from the neck 21 of the casing into the casing 2, and the neck 21 of the casing is made of steel material; the welding method using electric energy as a heat source One end 11 of the pipe fitting and the neck 21 of the casing are welded by welding.

[0047] In this embodiment, the welding method using electric energy as the heat source is brazing in which the heat source is electric energy, that is, non-flame brazing. Preferably, the brazing in which the heat source is electrical energy is argon arc brazing, such as Figure 3a shown, wherein the gas shield is not shown. However, the present invention is not limited to this. In other embodiments, the brazing in which the heat source is electrical energy may be molten electrode inert gas arc brazing (MIG brazing), molten elec...

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Abstract

The invention provides a pipe fitting and shell welding method and application. According to the welding method, one end of a pipe fitting is made of a steel material and stretches into a shell from the neck portion of the shell, and the neck portion of the shell is made of a steel material; one end of the pipe fitting and the neck portion of the shell are connected through welding by means of the welding method adopting electric energy as the heat source, or one end of the pipe fitting and the neck portion of the shell are connected through welding by means of the welding method adopting electric energy as the heat source and furnace brazing.

Description

technical field [0001] The invention relates to the field of metal welding, in particular to a welding method and application of a pipe fitting and a shell. Background technique [0002] In the air-conditioning system, the welding quality and welding cost of the steel shell and piping in the tank parts are the key concerns during the production of these parts. At present, the welding of shell and piping is mostly carried out by flame brazing or furnace brazing. [0003] For flame brazing, gas combustion will oxidize the casing and piping, and the surface of the piping and casing will be black after welding, which requires subsequent polishing and cleaning processes. The polishing and cleaning processes in this welding method not only greatly increase the welding cost, but also adversely affect the appearance of the product during polishing, thereby affecting the quality of the welded product. For brazing in the furnace, due to the uneven temperature in the furnace, after t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/00B23K9/16B23K10/02B23K1/00B23K1/008
CPCB23K11/00B23K1/0004B23K1/0008B23K1/008B23K9/16B23K10/02
Inventor 斯培淦
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