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Preparation method for high-purity CRRCSAL5183G aluminum-magnesium alloy TIG/MIG welding wire special for high-speed rail train

A technology of aluminum-magnesium alloys and trains, which is applied in the field of welding material manufacturing, can solve the problems of easy oxidation of trace alloys, and achieve the effect of improving mechanical properties, performance and production efficiency

Inactive Publication Date: 2016-06-29
LANZHOU WEITE WELDING MATERIAL FURANCE BURDEN
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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention proposes a preparation method of high-purity CRRCSAL5183G aluminum-magnesium alloy TIG / MIG welding wire for high-speed trains, which solves the problem that trace alloys are easily oxidized, and improves the performance of the welding wire, the purity of the alloy and the production efficiency. Improve the mechanical properties of the welding wire and the fatigue resistance of the weld

Method used

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Embodiment Construction

[0016] The preparation method of a high-purity CRRCSAL5183G aluminum-magnesium alloy TIG / MIG welding wire for high-speed rail trains of the present invention will be described in detail below. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention.

[0017] A method for preparing high-purity CRRCSAL5183G aluminum-magnesium alloy TIG / MIG welding wire for high-speed trains, comprising the following steps:

[0018] A, Mg, Cu, Zn, Mn, Cr, Ti and Al are smelted according to the mass ratio, and the alloy wire rod is prepared after smelting;

[0019] B. After the alloy wire rod is drawn (coarse, medium and fine wire drawing) and annealed, then scraped and cleaned to obtain the welding wire.

[0020] The mass percentage of each component is: Mg: 4.3%~5.2%, (FE+SI)<0.3%, Cu<0.1%, Mn: 0.5%~1.0%, Cr: 0.05%~0.20%, Ti< 0.15%, Na<0.001%, the rest is Al.

[0021] In step A, a vacuum induction ...

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Abstract

The invention discloses a preparation method for a high-purity CRRCSAL5183G aluminum-magnesium alloy TIG / MIG welding wire special for a high-speed rail train. The preparation method comprises the following steps that A, Mg, Cu, Mn, Cr, Ti and Al are smelted according to the mass ratio, and an alloy coil rod is prepared after smelting; and B, the alloy coil rod is subjected to drawing annealing. The problem that a high-purity alloy special for the high-speed rail train is prone to being oxidized is solved, the property and the production efficiency of the welding wire are improved, and the mechanical property of the welding wire is improved.

Description

technical field [0001] The invention relates to the technical field of welding material manufacturing, in particular to a method for preparing high-purity CRRCSAL5183G aluminum-magnesium alloy TIG / MIG welding wire for high-speed trains. Background technique [0002] In the existing technology, the control range of impurity elements is relatively wide, which affects the purity of the alloy, and then affects the welding performance. Impurities FE and SI will reduce the corrosion resistance and mechanical properties of the alloy, especially for gold with a high MN content; The impurity element NA seriously affects the hot deformation properties of the alloy. If the NA content exceeds 0.001%, "NA brittleness" will appear, especially in high MG alloys. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a preparation method of high-purity CRRCSAL5183G aluminum-magnesium alloy TIG / MIG welding wire for high-speed trains, ...

Claims

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Application Information

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IPC IPC(8): B23K35/40B23K35/28
CPCB23K35/40B23K35/0261B23K35/286
Inventor 傅开武李小慧杨修伟刘天赋
Owner LANZHOU WEITE WELDING MATERIAL FURANCE BURDEN
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