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An active agent for welding of aluminum alloy parts in a grain thrower

A technology of aluminum alloy parts and activator, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve the problems of lack of activation and protection, failure of activating agent performance, hindering welding progress, etc. Strong chemical activity and thermal stability, improved corrosion resistance and wear resistance, avoiding the effect of service life

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
During the aluminum alloy welding process, due to the general wettability of the solder, easy oxidation, and high melting point, the existing activator is volatile during the activator work, causing the failure of the activator performance and failing to activate and protect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A welding activator for aluminum alloy parts in a grain thrower, wherein the main technical means are: using the prepared activator to add the prepared activator to the basic components of the flux to prepare the flux, which is used for the welding of the aluminum alloy parts in the grain thrower. , effectively improve the welding performance and welding efficiency of aluminum alloy parts;

[0017] The preparation method of the active agent comprises the following process steps:

[0018] (1) Using an electronic balance, weigh 1.14 mmol of yttrium acetate and 2.7 mmol of manganese acetate, put them in an agate mortar, grind for 10 minutes, add 1.8 g of oxalic acid powder, continue to grind for 20 minutes, and place them in a vacuum drying oven at 70°C Dry for 13 hours, then pyrolyze for 2 hours under a nitrogen atmosphere, the pyrolysis temperature is 600 ° C, and the pyrolysis product is immersed for 1.5 minutes using a hydrochloric acid solution with a molar concentrat...

Embodiment 2

[0027] A welding activator for aluminum alloy parts in a grain thrower, wherein the main technical means are: using the prepared activator to add the prepared activator to the basic components of the flux to prepare the flux, which is used for the welding of the aluminum alloy parts in the grain thrower. , effectively improve the welding performance and welding efficiency of aluminum alloy parts;

[0028] The preparation method of the active agent comprises the following process steps:

[0029] (1) Using an electronic balance, weigh 1.15 mmol of yttrium acetate and 3.0 mmol of manganese acetate, put them in an agate mortar, grind for 12 minutes, add 2.0 grams of oxalic acid powder, continue to grind for 25 minutes, and place them in a vacuum drying oven at 75°C Dry for 14 hours, then pyrolyze for 2.5 hours under a nitrogen atmosphere, the pyrolysis temperature is 650 ° C, and the pyrolysis product is immersed for 1.8 minutes in a hydrochloric acid solution with a molar concentra...

Embodiment 3

[0038] A welding activator for aluminum alloy parts in a grain thrower, wherein the main technical means are: using the prepared activator to add the prepared activator to the basic components of the flux to prepare the flux, which is used for the welding of the aluminum alloy parts in the grain thrower. , effectively improve the welding performance and welding efficiency of aluminum alloy parts;

[0039] The preparation method of the active agent comprises the following process steps:

[0040] (1) Weigh 1.16 mmol of yttrium acetate and 3.3 mmol of manganese acetate using an electronic balance, place them in an agate mortar, grind for 15 minutes, add 2.2 grams of oxalic acid powder, continue to grind for 30 minutes, and place them in a vacuum drying oven at 80°C Dry for 15 hours, then pyrolyze for 3 hours under a nitrogen atmosphere, the pyrolysis temperature is 700 ° C, and the pyrolysis product is immersed for 2.0 minutes using a hydrochloric acid solution with a molar conce...

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Abstract

The invention relates to the technical field of mechanical welding research, and discloses an activator for welding aluminum alloy parts in a grain thrower. The activator prepared by the invention is used in flux, and a small amount of addition can change the properties of the flux system , improve the expansion rate, has strong chemical activity and thermal stability, can prevent performance weakening or failure caused by heat during welding, good adaptability to aluminum alloy materials, small shrinkage and deformation of the workpiece, making welding continuous and reliable Repeatability can prevent the volatilization and failure of the active agent caused by high temperature during the welding process of the aluminum alloy parts of the grain thrower, improve the welding efficiency, facilitate the concentrated heat transfer to the welding area, reduce the porosity of the weld, and improve the welding quality. The formed interface has high bonding strength, strong thermal shock resistance, and significantly improved corrosion resistance and wear resistance.

Description

technical field [0001] The invention belongs to the technical field of mechanical welding research, in particular to an active agent for welding 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 regarded as "opportunity metal" and "hope metal", and the aluminum industry has always been regarded as "sunrise industry". [0003] In recent years, with the advancement of welding technology, the application of aluminum and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/362B23K35/36B23K35/40
CPCB23K35/362B23K35/3613B23K35/40
Inventor 张飞张松
Owner ANHUI FEISONG MASCH TECH CO LTD
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