A high-strength aluminum-magnesium alloy welding wire and its processing technology

An aluminum-magnesium alloy, high-strength technology, used in metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of hindering the sedimentation of the protective agent, affecting the performance of the alloy, short service life, etc., to improve the protection effect and service life, The effect of increasing service life, improving strength and mechanical properties

Active Publication Date: 2021-04-20
江苏港缆新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The nature of magnesium in aluminum-magnesium alloys is relatively active, and oxidative combustion will occur during the smelting process. In order to prevent the oxidative combustion of magnesium, we mostly choose to add salt protective agents during smelting. The most common protective agents are magnesium chloride and sodium chloride. , Potassium chloride ternary mixed salt, but they are easy to settle and have a short service life. Therefore, some scholars now add calcium carbonate during smelting, and the carbon dioxide generated can effectively hinder the settlement of the protective agent and improve the service life of the protective agent. and protective effect, but the carbon dioxide gas generated by calcium carbonate will affect the performance of the prepared alloy, which brings us inconvenience

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  • A high-strength aluminum-magnesium alloy welding wire and its processing technology

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Experimental program
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Effect test

Embodiment 1

[0052] First prepare raw materials, weigh aluminum ingots, magnesium ingots, zinc ingots, aluminum-chromium master alloys, aluminum-manganese master alloys, aluminum-silicon master alloys, aluminum-titanium master alloys, aluminum-beryllium master alloys and rare earths in proportion, and set aside; weigh in proportion Calcium carbonate, magnesium chloride, sodium chloride, potassium chloride and additives are uniformly mixed to obtain a protective flux for subsequent use; graphene oxide, sodium sulfate and carbon are weighed in proportion for subsequent use;

[0053] Then take aluminum ingots, zinc ingots, aluminum-chromium master alloys, aluminum-titanium master alloys, aluminum-beryllium master alloys and rare earths, put them into the melting furnace, heat up to 760°C, stir and melt for 8 hours, then add 1 / 4 of the protective flux, and heat Melt and stir evenly to obtain material A; adjust the temperature to 750°C, add magnesium ingots to material A until it is completely m...

Embodiment 2

[0058] First prepare raw materials, weigh aluminum ingots, magnesium ingots, zinc ingots, aluminum-chromium master alloys, aluminum-manganese master alloys, aluminum-silicon master alloys, aluminum-titanium master alloys, aluminum-beryllium master alloys and rare earths in proportion, and set aside; weigh in proportion Calcium carbonate, magnesium chloride, sodium chloride, potassium chloride and additives are uniformly mixed to obtain a protective flux for subsequent use; graphene oxide, sodium sulfate and carbon are weighed in proportion for subsequent use;

[0059] Then take aluminum ingots, zinc ingots, aluminum-chromium master alloys, aluminum-titanium master alloys, aluminum-beryllium master alloys and rare earths, put them into the melting furnace, heat up to 780°C, stir and melt for 9 hours, then add 1 / 4 of the protective flux, and heat Melt and stir evenly to obtain material A; adjust the temperature to 755°C, add magnesium ingots to material A until it is completely m...

Embodiment 3

[0064] First prepare raw materials, weigh aluminum ingots, magnesium ingots, zinc ingots, aluminum-chromium master alloys, aluminum-manganese master alloys, aluminum-silicon master alloys, aluminum-titanium master alloys, aluminum-beryllium master alloys and rare earths in proportion, and set aside; weigh in proportion Calcium carbonate, magnesium chloride, sodium chloride, potassium chloride and additives are uniformly mixed to obtain a protective flux for subsequent use; graphene oxide, sodium sulfate and carbon are weighed in proportion for subsequent use;

[0065] Then take aluminum ingots, zinc ingots, aluminum-chromium master alloys, aluminum-titanium master alloys, aluminum-beryllium master alloys and rare earths, put them into the melting furnace, heat up to 800°C, stir and melt for 10 hours, then add 1 / 4 of the protective flux, and heat Melt and stir evenly to obtain material A; adjust the temperature to 760°C, add magnesium ingots to material A until it is completely ...

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Abstract

The invention discloses a high-strength aluminum-magnesium alloy welding wire and its processing technology, which includes melting material, protective flux and additives. During the smelting process of aluminum-magnesium alloys, due to the active chemical activity of magnesium, the oxidation and burning of the alloy The damage phenomenon is very serious, so we added beryllium to the melt to suppress the oxidation tendency of Mg; rare earth was also added to the melt, which can improve the high temperature performance and thermal cracking performance of the aluminum-magnesium alloy, and refine the alloy of the aluminum-magnesium alloy Grains, improve the wear resistance of aluminum-magnesium alloys. The invention provides a high-strength aluminum-magnesium alloy welding wire with reasonable formula design and optimized preparation process parameters, which not only realizes the preparation of aluminum-magnesium alloy welding wire, but also effectively improves the strength and mechanical properties of the aluminum-magnesium alloy. Simple and highly practical.

Description

technical field [0001] The invention relates to the technical field of alloy processing, in particular to a high-strength aluminum-magnesium alloy welding wire and a processing technology thereof. Background technique [0002] The main element of aluminum-magnesium alloy is aluminum, and a small amount of magnesium or other metal materials are added to strengthen its hardness. Aluminum alloy with magnesium as the main added element is also called anti-rust aluminum alloy because of its good corrosion resistance. Because it is a metal itself, its thermal conductivity and strength are particularly prominent. [0003] The nature of magnesium in aluminum-magnesium alloys is relatively active, and oxidative combustion will occur during the smelting process. In order to prevent the oxidative combustion of magnesium, we mostly choose to add salt protective agents during smelting. The most common protective agents are magnesium chloride and sodium chloride. , Potassium chloride ter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/28B23K35/40C22C21/08
Inventor 徐建明徐建祥徐祺玮
Owner 江苏港缆新材料科技有限公司
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