Tubular wire arc welding

Tubular wire arc welding (also known as flux-cored arc welding) is a highly efficient welding method that uses a continuously fed tubular wire and an electric arc burning between the wire and the workpiece. The flux inside the wire provides slag protection for the molten pool, allows for alloying, and stabilizes the arc.

Key Features:
Gas-slag combined protection: Produces aesthetically pleasing welds, a stable arc, and minimal spatter.
High deposition efficiency: Deposition rate is approximately 85-90%, resulting in a productivity 3-5 times higher than manual welding.
Strong adaptability: The chemical composition of the weld metal can be adjusted by modifying the flux composition.
Applications:
Materials: Carbon steel, low-alloy steel, stainless steel, cast iron, etc.
Positions: Flat welding, overhead welding, and all-position welding.
Advantages and Disadvantages:
Advantages: High efficiency, high deposition rate, strong adaptability.
Disadvantages: Complex wire manufacturing, difficult wire feeding, requires moisture-proof storage.

This method is widely used in industrial production and is an important technology for achieving automated welding.