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Al-Mg alloy welding wire and preparation method thereof

An aluminum-magnesium alloy and welding wire technology, which is applied to the field of aluminum-magnesium alloy welding wire and its preparation, can solve the problems of large consumption, high production cost, complex welding wire composition, etc., and achieves easy control of operation, reduction of volatilization oxidation and burning loss, and preparation method. simple effect

Inactive Publication Date: 2010-09-08
桂林市银箭焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of the welding wire described in this invention is relatively complex, and the added rare earth elements are not only of many types, but also their consumption is relatively large, the production cost is high, and the phenomenon of volatilization, oxidation and burning during the preparation process is still serious

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  • Al-Mg alloy welding wire and preparation method thereof

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Effect test

Embodiment 1

[0018] 1. The composition of aluminum-magnesium alloy welding wire is calculated by weight percentage:

[0019] Magnesium 5.5%, chromium 0.10%, manganese 0.15%, titanium 0.06%, beryllium 0.0003%, yttrium 0.03%, aluminum balance.

[0020] 2. Preparation method:

[0021] 1) Raw material preparation: aluminum and magnesium are added in the form of pure metals, and alloying elements chromium, manganese, titanium, beryllium and yttrium are added in aluminum-based master alloys;

[0022] 2) Alloy smelting: put the aluminum ingot into the gas-fired reverberatory furnace, after melting, add the magnesium ingot, add the slagging agent ZS-AZ (Sichuan Lande High-tech Industry Co., Ltd.) after melting, stir and remove the slag, then add AlCr10, Mn99 , AlTi10, AlBE3 and AlY10 master alloys, after 35 to 35 minutes, add refining agent ZS-AJ (Sichuan Lande High-tech Industry Co., Ltd.) Cast aluminum alloy wire rod with a diameter of Φ6.5cm;

[0023] 3) Processing and forming: the alloy wir...

Embodiment 2

[0025] 1. The composition of aluminum-magnesium alloy welding wire is calculated by weight percentage:

[0026] Magnesium 5.0%, chromium 0.05%, manganese 0.20%, titanium 0.15%, beryllium 0.0002%, yttrium 0.08%, aluminum balance.

[0027] Two, preparation method: with embodiment 1.

Embodiment 3

[0029] 1. The composition of aluminum-magnesium alloy welding wire is calculated by weight percentage:

[0030] Magnesium 4.5%, Chromium 0.20%, Manganese 0.10%, Titanium 0.20%, Beryllium 0.0001%, Yttrium 0.12%, Aluminum balance.

[0031] Two, preparation method: with embodiment 1.

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Abstract

The invention discloses an Al-Mg alloy welding wire and a preparation method thereof. The composition of the welding wire is as follows in percentage by weight: magnesium: 4.5 to 5.5, chromium: 0.05 to 0.20, manganese: 0.05 to 0.20, titanium: 0.06 to 0.20, beryllium: 0.0001 - 0.0003, yttrium: 0.03 - 0.15, and the balance aluminum. The preparation method is as follows: after an aluminum ingot is added into a gas reverberatory furnace, a magnesium ingot is added in, melted and a reside-crash agent is added for deslagging; and then AlCr10, Mn99, AlTi10, AlBE3 and AlY10 are added in; after 35min, a refining agent is added under an argon protection state, a refining product stays still for 30min and is horizontally and continuously cast into an aluminum alloy wire rod; and after a plurality of times of drawing, the refining product is processed into continuous discoid welding wires with various specifications. Compared with the prior art, the invention has simple preparation method, easily controlled operation and little volatilization, oxidation or burning in melting; and the prepared welding wire has good welding toughness, strength and thermal crack resistance.

Description

technical field [0001] The invention relates to an aluminum-magnesium alloy welding wire and a preparation method thereof, belonging to the technical field of metal material preparation. Background technique [0002] At present, in the field of aluminum alloy fusion welding, non-heat treatment strengthened aluminum-magnesium alloy welding wire is the most widely used one, accounting for more than 50% of the entire aluminum alloy filler material usage, and its typical grade is ER5356. The advantages of ER5356 alloy welding wire are moderate strength, relatively good thermal cracking resistance and corrosion resistance. However, the existing aluminum-magnesium alloy welding wire such as ER5356 has severe volatilization, oxidation and burning of elements such as magnesium and zinc during the welding process, so that the strength of the joint is significantly lower than that of the base metal. For thick plate welding and large parts that cannot be heat treated after welding, th...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C1/03
Inventor 邹铁生
Owner 桂林市银箭焊接材料有限公司
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