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Welding flux for aluminum alloy parts in a grain thrower

A technology of aluminum alloy parts and flux, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve the problems that the weld performance and surface quality are difficult to meet the design requirements, hinder the welding progress, and difficult to oxidize the film, etc. , to achieve the effect of strengthening chemical activity and thermal stability, reducing surface tension and enhancing surface wetting performance

Active Publication Date: 2022-07-19
ANHUI FEISONG MASCH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of aluminum alloys and their active chemical properties, they are easily oxidized during the welding process, forming a refractory oxide film, hindering the welding process, and causing a series of defects during the welding process. The welding of aluminum alloys has always been an important part of industrial production. difficulty
Defects such as pores, inclusions, and welding cracks are prone to occur during the aluminum alloy welding process, and the performance and surface quality of the weld are often difficult to meet the design requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A welding flux for aluminum alloy parts in a grain thrower, wherein the main technical means are: using the prepared flux to improve the welding performance of the aluminum alloy parts and effectively improve the welding efficiency;

[0016] Specifically, the welding flux for aluminum alloy parts in the grain thrower is made of the following components in parts by weight: 15.5 parts of polyethylene glycol, 1.3 parts of stearic acid, 0.34 parts of composite nano-powder, and 0.8 parts of glycerin , 1.0 part of triethanolamine, 0.3 part of 2,3-dibromopropanol, 0.1 part of oleyl alcohol polyoxyethylene ether, and 55 parts of rosin; the polyethylene glycol is one or more of molecular weights of 600 and 800.

[0017] The preparation method of the composite nano-powder material comprises the following process steps:

[0018] Use an electronic balance to weigh 2.3 grams of strontium titanate and 15.0 grams of calcium carbonate, place them in a ball-milling jar as the objects to...

Embodiment 2

[0025] A welding flux for aluminum alloy parts in a grain thrower, wherein the main technical means are: using the prepared flux to improve the welding performance of the aluminum alloy parts and effectively improve the welding efficiency;

[0026] Specifically, the welding flux for aluminum alloy parts in the grain thrower is made of the following components in parts by weight: 15.8 parts of polyethylene glycol, 1.4 parts of stearic acid, 0.35 parts of composite nano-powder, and 0.85 parts of glycerin , 1.1 parts of triethanolamine, 0.4 parts of 2,3-dibromopropanol, 0.15 parts of oleyl alcohol polyoxyethylene ether, and 60 parts of rosin; the polyethylene glycol is one or more of molecular weights of 600 and 800.

[0027] The preparation method of the composite nano-powder material comprises the following process steps:

[0028] Use an electronic balance to weigh 2.4 grams of strontium titanate and 15.3 grams of calcium carbonate, place them in a ball-milling jar as objects t...

Embodiment 3

[0035] A welding flux for aluminum alloy parts in a grain thrower, wherein the main technical means are: using the prepared flux to improve the welding performance of the aluminum alloy parts and effectively improve the welding efficiency;

[0036] Specifically, the welding flux for aluminum alloy parts in the grain thrower is made of the following components in parts by weight: 16.0 parts of polyethylene glycol, 1.5 parts of stearic acid, 0.36 parts of composite nano-powder, and 0.9 parts of glycerin , 1.2 parts of triethanolamine, 0.5 parts of 2,3-dibromopropanol, 0.2 parts of oleyl alcohol polyoxyethylene ether, and 65 parts of rosin; the polyethylene glycol is one or more of the molecular weights of 600 and 800.

[0037] The preparation method of the composite nano-powder material comprises the following process steps:

[0038] Use an electronic balance to weigh 2.5 grams of strontium titanate and 15.6 grams of calcium carbonate, place them in a ball-milling jar as objects...

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Abstract

The invention relates to the technical field of mechanical welding research, and discloses a welding flux for aluminum alloy parts in a grain thrower. The flux prepared by the invention has strong chemical activity and thermal stability, and is suitable for aluminum alloy materials. It has good properties, high expansion speed and strong adhesion effect, which can prevent the re-oxidation of the solder and the welded surface of the aluminum alloy parts of the grain thrower during the welding process, significantly reduce the surface tension of the solder, and enhance the surface wettability, which is conducive to concentration. The heat is transferred to the welding area, no spatter and toxic gas are generated during welding, the residue is easily removed after welding, and no metal oxides that cause corrosion are generated. The invention solves the problem that the existing inorganic fluxes are easy to cause corrosion and local failure while removing oxides on the aluminum alloy welding surface.

Description

technical field [0001] The invention belongs to the technical field of mechanical welding research, and particularly relates to a welding flux for aluminum alloy parts in a grain thrower. Background technique [0002] Aluminum alloys and their processing materials have a series of excellent properties, such as low density, high specific strength and specific stiffness, good elasticity, good impact resistance, corrosion resistance, wear resistance, high electrical conductivity, high thermal conductivity, easy surface treatment, good Processability and high recycling recyclability, etc. The reserves of aluminum in the earth are extremely abundant, ranking third only after oxygen and silicon. Therefore, in the field of engineering, aluminum has always been considered as "opportunity metal" and "hope metal", and the aluminum industry has always been considered as "sunrise industry". [0003] In recent years, with the advancement of welding technology, the application of alumin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/362B23K35/36
CPCB23K35/362B23K35/3613
Inventor 张飞张松
Owner ANHUI FEISONG MASCH TECH CO LTD
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