Metal material plate grooving pipe laying brazing method

Abstract

The invention relates to a brazing method and provides a metal material plate grooving pipe laying brazing method aiming at solving the problems that grooving pipe laying brazing between a large metal material flat plate workpiece and a water cooling pipe has a plurality of weld defects, workpiece deforming is high, surface oxidation is severe, postwelding stress is high, and vacuum furnace brazing cannot be used. The method comprises the steps that first, a high-temperature alloy support is arranged, and an adjustable supporting component is arranged; second, the upper surface of a supporting piece is adjusted to be horizontal; third, stud is welded, and the water cooling pipe is fixed; fourth, brazing filler metal and a down-pressing component are arranged; fifth, vacuum brazing is carried out; and sixth, postwelding discharging is carried out, and grooving pipe laying brazing is completed. According to the brazing method, grooving pipe laying brazing between the large metal material flat plate workpiece and the water cooling pipe can be achieved, the method has the advantages that brazing quality is high, the number of weld defects is small, brazing filler metal distribution in a groove is even, postwelding workpiece deforming is avoided, surface oxidation is avoided, and postwelding stress is small.

Description

technical field [0001] The invention relates to a brazing method, in particular to a brazing method for grooved buried pipes on metal material plates. Background technique [0002] In this field, we often face the problem of brazing between larger metal material flat workpieces and water-cooled pipes. However, based on actual needs, sometimes it is required that the water-cooled pipes should not be directly arranged on the surface of the workpiece, but must be pre-grooved on the workpiece , and then bury the water-cooled tube, and braze the water-cooled tube in the slot. This brazing method can be called slotted tube brazing. [0003] For slotted pipe brazing, if the vacuum furnace brazing commonly used in this field is used, the brazing will fail due to the significant deformation of the water-cooled tube and the workpiece during the brazing process and the uneven distribution of the brazing material. Therefore, the slotted buried pipe brazing is usually completed by manua...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of many weld defects, large workpiece deformation, serious surface oxidation, large post-weld stress and inability to use vacuum furnace brazing in the slotted pipe brazing between relatively large metal material flat workpieces and water-cooled pipes, etc., The invention provides a brazing method for grooved and buried pipes of metal material plates

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