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Magnesium alloy welding wire
Key words: magnesium alloy materials
Details
Magnesium alloy welding wire is a kind of filler material specially designed for welding magnesium and its alloys. Magnesium alloys have been widely used in aviation, automobile, 3C products and other industrial fields because of their light weight, high strength and good corrosion resistance. In these applications, welding is used as a method of joining or repairing materials, and special welding wires are required to achieve good welding results.
Features of magnesium alloy welding wire:
1. Low melting point: The melting point of magnesium alloy welding wire is lower than that of steel and aluminum welding wire, and it can be welded with lower heat.
2. Good fluidity: Magnesium welding wire has good fluidity when melted, which is helpful for weld formation.
3, corrosion resistance: magnesium alloy welding wire itself has good corrosion resistance.
4. High thermal conductivity: High thermal conductivity means that rapid heat dissipation is required during welding to avoid excessive damage to the heat-affected zone of the magnesium alloy substrate.
commonly used magnesium alloy welding wire type:
1, AZ31B welding wire: containing aluminum and zinc, suitable for welding AZ31B and similar components of magnesium alloy.
2. AZ61A welding wire: high content of aluminum and zinc, suitable for AZ61A alloy.
3, AZ92A welding wire: higher aluminum content, usually used in high temperature applications.
4. WE43 welding wire: rare earth element welding wire, suitable for welding high-performance magnesium alloy.
Welding method:
1. Tungsten gas shielded welding (TIG): suitable for thin plates and occasions that require high-quality welds.
2. Metal inert gas shielded welding (MIG): It is suitable for thicker materials and can realize high-speed welding.
Quality standards and specifications:
The production and quality of magnesium alloy welding wires usually follow the following international standards:
AWS A5.19: American Welding Society Standard for Magnesium Alloy Welding Wire.
ISO 18273: Welding consumables-Classification of welding wires and electrodes for aluminium, aluminium alloys and magnesium alloys.
Application areas
electron
Car
printing
Needle plate
Aerospace
High-speed rail
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