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Piping for refrigeration, production method and application

A manufacturing method and piping technology, applied in the field of composite pipes, can solve the problems of high welding cost and easy to be burned through, and achieve the effects of improving welding conditions, reducing welding cost and improving welding characteristics

Inactive Publication Date: 2015-10-28
何珠华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the problems of high welding cost and easy burn-through existing in the connection between existing refrigeration piping and connecting pipes, the present invention provides a piping for refrigeration without connecting pipes, a manufacturing method and an application thereof

Method used

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  • Piping for refrigeration, production method and application
  • Piping for refrigeration, production method and application
  • Piping for refrigeration, production method and application

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Embodiment 2

[0057] This embodiment is basically the same as Embodiment 1 and its variations, except that the method of manufacturing the cooling pipes is different. Such as Figure 9 As shown, the manufacturing method of the refrigeration pipe provided in this embodiment includes:

[0058] Step S1', obtain a tubular metal base layer 1. In this embodiment, the metal base 1 is a stainless steel tube. However, the present invention does not make any limitation thereto. In other embodiments, the metal base 1 can be a carbon steel pipe.

[0059] Step S2', forming at least one layer of copper covering layer 2 for connecting with external parts on the sidewall of the metal base layer 1. In this embodiment, a copper covering layer is formed on the outer wall of the metal base layer 1 by combining welding method and metallurgical rolling method. The forming steps are basically the same as the first embodiment, firstly, a layer of copper covering layer 2 is coated on the outer wall of the meta...

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Abstract

The invention provides a piping for refrigeration, a production method and application. The piping for refrigeration is compounded from a plurality of metal layers, wherein the metal layers comprise a metal base layer, a side wall formed on the metal base layer and at least one copper cover layer used for being welded with an external part. The piping for refrigeration provided by the invention can totally replace the composite structure of a piping and a connecting piece of the conventional refrigeration device, so that the welding procedure is greatly decreased, and the welding cost is reduced.

Description

technical field [0001] The invention relates to the field of refrigeration accessories, and in particular to a composite pipe, a manufacturing method and application of the composite pipe. Background technique [0002] Because copper has good corrosion resistance and welding suitability, it is widely used in refrigeration equipment. For example, the outlet pipe on the current compressor liquid receiver is connected with the suction pipe of the refrigeration compressor with a copper elbow. This copper elbow needs to consume more copper, but it is only to meet the requirements of the air conditioning pipeline system. The welding is convenient and quick. Therefore, in order to reduce the consumption of copper resources and reduce costs, we need to research and develop a new material that can replace existing copper pipes and save copper consumption. [0003] At present, the research goals of those skilled in the art generally focus on developing a new connecting pipe to repla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/00F25B41/40
CPCF25B41/00
Inventor 何珠华
Owner 何珠华
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