High-efficiency copper-iron automatic flame brazing machine and brazing method thereof

A technology of flame brazing and welding methods, which is applied in the direction of welding equipment, tin feeding devices, auxiliary devices, etc., can solve the problems of high welding cost and expensive silver-based solder, and achieve the reduction of brazing cost and accurate and reliable flame temperature. control and reduce dependence

Inactive Publication Date: 2012-07-18
佛山市泓实机械制造有限公司
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Problems solved by technology

In order to solve the problem of welding dissimilar metals between the compressor casing cover and the copper tube, the brazing of the compressor casing cover and the copper tube is brazed with brazing materials containing high silver content (such as BAg40CuZn, BAg45CuZn, etc.), because the silver-based solder is expensive , leading to higher welding costs

Method used

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  • High-efficiency copper-iron automatic flame brazing machine and brazing method thereof
  • High-efficiency copper-iron automatic flame brazing machine and brazing method thereof
  • High-efficiency copper-iron automatic flame brazing machine and brazing method thereof

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Embodiment Construction

[0020] In order to illustrate the content of the present invention more clearly, further description will be made below in conjunction with the accompanying drawings and specific embodiments:

[0021] Such as figure 1 As shown, a high-efficiency copper-iron automatic flame brazing machine and its welding method include a turntable 1, a control system 2 and a flame welding mechanism 5. The turntable 1 includes a loading station 11, a sensing station 12, a preheating station 13, a welding station 14, a cooling station 15, and an unloading station 16; the corresponding preheating station 13 is equipped with a flame preheating mechanism 3; Corresponding to the welding station 14 is installed a temperature sensing device 6 for detecting the temperature of the weldment on the welding station.

[0022] The loading station 11, sensing station 12, preheating station 13, welding station 14, cooling station 15, and unloading station 16 on the turntable 1 are arranged in counterclockwise...

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Abstract

The invention relates to a high-efficiency copper-iron automatic flame brazing machine and a brazing method thereof, in particular to a brazing device for compressor hot rolled plate shell cover and copper pipe girth welding, which comprises a rotary disc, a control system and a flame welding mechanism, wherein the rotary disc comprises a loading station, a sensing station, a preheating station, a welding station, a cooling station and an unloading station; a flame preheating mechanism is installed correspondingly to the preheating station; a temperature sensing device for detecting welding temperature on the welding station is installed correspondingly to the welding station. The automatic flame brazing machine disclosed by the invention overcomes the shortages of the prior art, breaks through the core technology of the flame welding (controlling temperature of the flame), and reduces the dependency of the existing compressor hot rolled plate shell cover and the copper pipe girth welding on the high-silver solder, thereby reducing the brazing cost remarkably.

Description

technical field [0001] The invention relates to a high-efficiency copper-iron automatic flame brazing machine and a welding method thereof, in particular to a brazing device used for welding the hot-rolled shell cover of a compressor and the circumferential seam of a copper pipe. Background technique [0002] In recent years, dissimilar metal brazing applications have become increasingly widespread. However, due to the great difference in the physical and chemical properties of different materials, especially their different thermal expansion coefficients, during the cooling process after welding, the shrinkage of different materials is inconsistent, resulting in deformation stress. If the weld is not strong enough to overcome the deformation stress, it will crack the weld and cause the compressor to leak. [0003] Especially for the welding of air conditioners, refrigerators and other compressor shell covers and copper pipes, in view of the internal pressure of the compres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/00B23K3/08B23K3/06B23K1/00
Inventor 葛红旗王晓彦王彩英
Owner 佛山市泓实机械制造有限公司
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