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Pure aluminum has a melting point of 660.37 degrees Celsius, while the aluminum alloy has a melting point of 482-660 degrees Celsius, depending on the alloying elements it contains. When aluminum and aluminum alloys are heated from room temperature to a molten state, there is no color change, and it is difficult to determine the temperature of the base metal during welding, and it is easy to burn or melt the base metal. The temperature definition of low-temperature aluminum wire is mainly based on three temperature ranges.Hardware aluminum die casting part Supplier
1. Cleaning: Cleaning of the welded parts is best done by mechanical cleaning to remove the surface oxide film.
2, heating: focus on heating with thick pieces, when heating can be slightly away from the welding distance, without having to go directly to the welding mouth.
3, under the material: up to 400 degrees temperature, under the wire. The point of view should be perpendicular to the welding point. The moment of the point is slightly squished with the end of the flame to melt the tip of the wire and melt the tip of the wire, instead of deliberately welding the wire.