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A kind of vortex vacuum brazing method

A brazing method and vortex technology, which are applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve problems affecting the brazing quality of vortex component parts, reducing the qualified rate of vortex components, and unsatisfactory brazing quality, etc. , to achieve the effect of facilitating brazing quality, improving brazing quality, and brazing quality assurance

Active Publication Date: 2016-08-24
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Simultaneously, in the prior art, the brazing technology for vortex assembly parts all adopts such as figure 2 In the method shown, a clamp is used to fix the outer cover, and then by adding welding solder at a, and then through the welding liquefaction process, the solder flows to the b end due to the action of the capillary, thereby achieving the brazing of the vortex component parts, but , because the surface of the vortex assembly is provided with a large number of air holes, therefore, in the process of brazing, it is required that the solder will not block the air flow holes due to the flow of liquid; and the part brazing method of the vortex assembly in the prior art Then it will often cause the split hole of the parts of the vortex assembly to be blocked, thereby reducing the pass rate of the vortex assembly. At the same time, when brazing due to capillary action, the effect in the flow process is poor due to the fineness of the gap, which leads to The brazing quality is not ideal, which in turn affects the brazing quality of the vortex assembly parts
[0005] Furthermore, the application of vacuum brazing technology to the field of parts brazing of vortex components has not been reported yet. Therefore, after years of exploration and research, this researcher has provided a method for the field of parts brazing technology of vortex components. new ideas

Method used

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  • A kind of vortex vacuum brazing method
  • A kind of vortex vacuum brazing method
  • A kind of vortex vacuum brazing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 and image 3 Shown, a kind of vortex device vacuum brazing method comprises the following steps:

[0032] (1) Clean the part 4 surface of the vortex assembly, that is, first polish the part 4 surface of the vortex assembly, and then use a reducing agent to clean the part 4 surface of the vortex assembly, and the reducing agent is The mixture prepared by mixing the degreasing agent and hydrochloric acid uniformly according to 1:3, after cleaning for 20 minutes, it is ready for use;

[0033] (2) Add brazing material at a of the part 4 of the vortex assembly obtained in step 1), and use the clamp 3 to cover the outer cover 2 on the vortex assembly part 4, and buckle the part 4 upside down, and then use a fitting on the top. Heavy clamping 5 can complete the brazing assembly of parts 4 of the vortex assembly, ready for use;

[0034] (3) Place the assembled part 4 of the assembly to be brazed obtained in step 2) in the brazing furnace, and when placing i...

Embodiment 2

[0040] A vortex vacuum brazing method, comprising the following steps:

[0041] (1) Clean the part 4 surface of the vortex assembly, that is, first polish the part 4 surface of the vortex assembly, and then use a reducing agent to clean the part 4 surface of the vortex assembly, and the reducing agent is The mixture prepared by mixing the degreasing agent and hydrochloric acid uniformly according to 1:3, after cleaning for 30 minutes, it is ready for use;

[0042] (2) Add brazing material at a of the part 4 of the vortex assembly obtained in step 1), and use the clamp 3 to cover the outer cover 2 on the vortex assembly part 4, and buckle the part 4 upside down, and then use a fitting on the top. Heavy clamping 5 can complete the brazing assembly of parts 4 of the vortex assembly, ready for use;

[0043] (3) Place the assembled part 4 of the component to be brazed obtained in step 2) in the brazing furnace, and when placing it, place the part 4 upside down so that the part b o...

Embodiment 3

[0050] A vortex vacuum brazing method, comprising the following steps:

[0051](1) Clean the part 4 surface of the vortex assembly, that is, first polish the part 4 surface of the vortex assembly, and then use a reducing agent to clean the part 4 surface of the vortex assembly, and the reducing agent is The mixture prepared by mixing the degreasing agent and hydrochloric acid uniformly according to 1:3, after cleaning for 25 minutes, it is ready for use;

[0052] (2) Add brazing material at a of the part 4 of the vortex assembly obtained in step 1), and use the clamp 3 to cover the outer cover 2 on the vortex assembly part 4, and buckle the part 4 upside down, and then use a fitting on the top. Heavy clamping 5 can complete the brazing assembly of parts 4 of the vortex assembly, ready for use;

[0053] (3) Place the part 4 of the assembly to be brazed that is obtained in step 2) in the brazing furnace, and when placing it, place the part 4 upside down so that part b of the pa...

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Abstract

The invention relates to the technical field of vacuum brazing, in particular to a swirler vacuum brazing method. The quality of the surface of a swirler is made good through surface cleaning in the assembling process and the earlier stage of parts of swirler assemblies during brazing, the cleanliness is high, influences on quality of brazing is further lowered, the gaps and the thickness of brazing filler materials in the assembling process are controlled, and the brazing quality in the brazing process is further improved. Brazing is carried out by being combined with subsequent furnace charging, and the vacuum degree in a furnace is controlled to enable the brazing quality of the parts of the swirler assemblies to be good. It is guaranteed that the brazing portion is free of oxidation in the brazing process, and the brazing quality of the parts of the swirler assemblies is improved. Meanwhile, assembled parts are put into the furnace and combined with clamps and counterweight clamps arranged during assembly, the capillary action and the gravity action are combined together in the brazing process, and therefore the brazing quality of the parts of the swirler assemblies is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vacuum brazing, in particular to a vortex vacuum brazing method. Background technique [0002] Brazing is the use of filler metals (called solder or solder) with a melting point lower than that of the base metal (brazed material), at a temperature lower than the melting point of the base metal and higher than the melting point of the solder, using liquid brazing The welding method that the material wets and spreads on the surface of the base material and fills the gap in the base material, dissolves and diffuses with the base material, and realizes the connection between parts. [0003] There are many brazing methods in the prior art, such as soldering iron brazing, wave brazing, flame brazing, dip brazing, furnace brazing and vacuum brazing, and the vacuum brazing method is to withstand the heat in a vacuum environment. The process in which the brazing object is placed in a vacuum furnace for welding tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/008B23K1/20
CPCB23K1/0018B23K1/008B23K1/206
Inventor 冯玉斌杨冬梅林发仙翟辉何建洪原燕虹
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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