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Method for realizing brazing in metal straight pipe, and its special apparatus

A special equipment and brazing technology, which is applied in the field of brazing in metal straight pipes by means of high-frequency induction heating, can solve problems such as poor heat dissipation performance of radiators, inability to compound aluminum alloy fins, and difficulties in argon arc welding processes. Achieve the effects of reducing manual operation and labor, reliable performance, and reducing welding costs

Active Publication Date: 2007-01-10
SHENZHEN SAIWEIWO TECH
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  • Description
  • Claims
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Problems solved by technology

And if both the main pipe and the shunt pipe are made of stainless steel pipes, although the corrosion problem can be solved, the welding between the main pipe and the shunt pipe of the prior art stainless steel pipe usually adopts argon arc welding, and the aluminum alloy fins with good heat dissipation performance cannot be combined. Only all stainless steel radiators can be manufactured, which makes the heat dissipation performance of the radiator poor, and the argon arc welding process is difficult, and the welding quality is difficult to guarantee, often causing water leakage at the interface due to poor sealing

Method used

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  • Method for realizing brazing in metal straight pipe, and its special apparatus
  • Method for realizing brazing in metal straight pipe, and its special apparatus
  • Method for realizing brazing in metal straight pipe, and its special apparatus

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Embodiment Construction

[0035] Taking the welding of the main flow pipe and the shunt pipe of the heating radiator and the solar collector plate as an example, further details will be given in conjunction with the accompanying drawings.

[0036] Such as Figure 7 and Figure 8 As shown, the heating radiator welded by the brazing method and special equipment of the present invention is mainly composed of two main flow pipes 1 parallel to the upper and lower sides, and a plurality of main flow pipes 1 connected between the two main flow pipes 1 to make it penetrate. The shunt tube 2 and the cooling fins 9 covering the outer surface of the shunt tube 2 are composed. The main flow pipe 1 and the branch pipe 2 are all made of stainless steel with high strength and good corrosion resistance, wherein the main flow pipe 1 can be a square pipe or a semi-square and semi-circular pipe with at least one side being flat. In this embodiment, 30 × 30, 40 × 40, 50 × 50 or 60 × 60 (mm) or more square pipes, the shu...

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Abstract

This invention relates to a method for applying braze welding in metal straight tubes including: opening multiple holes with in-flanges along a same line on the side wall of a mainstream tube, plugging shunt tubes into the holes, then filling solders and flux in the gap between them then extending a ring inductorium into the mainstream tube and holding the in-flanges of the holes to let strong enough high frequency current flow through the inductorium to melt the solder then to be turned off and cooled to solder the mainstream and shunt tubes. This invention also discloses a device for the solder method.

Description

technical field [0001] The present invention relates to a welding method and its special equipment between metal base materials, in particular to a brazing method and its special equipment for brazing in metal straight pipes by means of high-frequency induction heating. Background technique [0002] In the prior art, the composite radiator is mainly made of copper tube and aluminum composite. Corrosion occurs when the steel pipe is used as a cold water and hot water pipe, and the corrosion is particularly serious when used as a hot water pipe. Where the water flow is slow, the copper pipes will undergo pitting corrosion, and where the water flow is fast, collapse corrosion will occur. And if both the main pipe and the shunt pipe are made of stainless steel pipes, although the corrosion problem can be solved, the welding between the main pipe and the shunt pipe of the prior art stainless steel pipe usually adopts argon arc welding, and the aluminum alloy fins with good heat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/002B23K1/20B23K3/04B23K101/04
Inventor 麦汉辉
Owner SHENZHEN SAIWEIWO TECH
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