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Welding active agent for aluminum alloy part in grain throwing machine

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: 2021-01-01
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] An active agent for welding aluminum alloy parts in a grain throwing machine, wherein the main technical means is: using the prepared active agent to add to the basic components of the flux to prepare flux, which is used for welding the aluminum alloy parts in the grain throwing machine , effectively improve the welding performance and welding efficiency of aluminum alloy parts;

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

[0018] (1) Use an electronic balance to weigh 1.14 mmol yttrium acetate and 2.7 mmol manganese acetate, place them in an agate mortar, grind for 10 minutes, add 1.8 grams of oxalic acid powder, continue grinding for 20 minutes, and place them in a vacuum 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 impregnated for 1.5 minutes with a hydrochloric acid solution with a molar concentration of 0....

Embodiment 2

[0027] An active agent for welding aluminum alloy parts in a grain throwing machine, wherein the main technical means is: using the prepared active agent to add to the basic components of the flux to prepare flux, which is used for welding the aluminum alloy parts in the grain throwing machine , effectively improve the welding performance and welding efficiency of aluminum alloy parts;

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

[0029] (1) Use an electronic balance to weigh 1.15 mmol yttrium acetate and 3.0 mmol manganese acetate, place them in an agate mortar, grind for 12 minutes, add 2.0 grams of oxalic acid powder, continue grinding for 25 minutes, and place them in a vacuum 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 impregnated for 1.8 minutes with a hydrochloric acid solution with a molar concentration of 0.4...

Embodiment 3

[0038] An active agent for welding aluminum alloy parts in a grain throwing machine, wherein the main technical means is: using the prepared active agent to add to the basic components of the flux to prepare flux, which is used for welding the aluminum alloy parts in the grain throwing machine , effectively improve the welding performance and welding efficiency of aluminum alloy parts;

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

[0040] (1) Use an electronic balance to weigh 1.16 millimolar yttrium acetate and 3.3 millimolar manganese acetate, place them in an agate mortar, grind for 15 minutes, add 2.2 grams of oxalic acid powder, continue grinding for 30 minutes, and place them in a vacuum 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 impregnated with a hydrochloric acid solution with a molar concentration of 0.5 mol...

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PUM

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Abstract

The invention relates to the technical field of mechanical welding research and discloses a welding active agent for an aluminum alloy part in a grain throwing machine. The active agent prepared in the invention is applied to soldering flux, and can be slightly added to change properties of a soldering flux system, so that a rate of expansion is increased, chemical activity and thermal stability are stronger, performance weakening or failure caused by heating in welding can be prevented, adaptability to an aluminum alloy material is good, and workpiece shrinkage and deformation is small, and thus, welding is continuous and repeatable, the active agent is prevented from volatilizing and losing effect at a high temperature in a welding process of the aluminum alloy part of the grain throwingmachine, welding efficiency is improved, intensive heat is transmitted to a welding region, welding seam porosity is reduced, and welding quality is improved; and a formed interface is high in bond strength, is strong in thermal impact resistance and is remarkably improved in corrosion resistance and wear resistance.

Description

technical field [0001] The invention belongs to the technical field of mechanical welding research, and in particular relates to an active agent for welding aluminum alloy parts in a grain throwing machine. Background technique [0002] Aluminum alloy and its processing materials have a series of excellent characteristics, 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 Processing formability and high recycling and regeneration. 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 an "opportunity metal" and "hope metal", and the aluminum industry has always been considered a "sunrise industry". [0003] In recent years, with the advancement of welding technolo...

Claims

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Application Information

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Patent Type & Authority Applications(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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