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Spot welding of low carbon steel

Angelina Dong Original 2015-07-23 14:17:00
Spot welding of low carbon steel
The carbon content of mild steel is lower than 0.25%.The resistivity is moderate, need welding machine power is not big;Temperature of the plastic zone width that is easy to obtain the required plastic deformation without having to use a lot of electrode pressure;Carbon and low content of trace elements, refractory oxide, generally do not produce quenching organization or inclusions;Narrow crystallization temperature range, high temperature strength, low thermal expansion coefficient, thus cracking tend to be small.This kind of steel with good weldability, welding current, electrode pressure and the polarization time parameters with larger regulating range.