What Is Involved in Carbon Steel Welding?

Carbon steel electrode (the tensile strength of the deposited metal is less than or equal to 500MPa, that is, 50kgf / mm2) is suitable for welding of carbon steel and low-strength low-alloy steel.

Carbon steel electrode

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Carbon steel electrode (the tensile strength of the deposited metal is less than or equal to 500MPa, that is, 50kgf / mm2) is suitable for welding of carbon steel and low-strength low-alloy steel.

For low-hydrogen type and iron powder type electrodes, the electrode must be baked above 350 ° C before welding, as far as possible to follow the principle of baking as much as possible, otherwise the welding defects (such as pores, slag, Cracks, process performance deterioration, etc.). For cellulose electrode, it should be baked strictly according to the baking temperature specified in the instructions. If the temperature is too high, the cellulose in the coating will be burned off, which will destroy the inherent process performance of the electrode.

When using low-hydrogen welding rods, the welder should be in an upwind position to strengthen the exhaust air to prevent the harm of welding fumes to the body.

For low-hydrogen electrodes, the baking times should not be more than two times to prevent the coating from becoming brittle and falling off.