The main parameters of the processing technology of the steel cage winding machine are the welding current IW, the welding time tW, the electric power FW and the electric-level work table specifications. They are closely related and can be changed in a very large range to control the quality of spot welding.
Let’s first master the steel cage winding machine ‘s two main parameters of welding current and welding time.
The amount of welding current is the key factor to endanger the heat evolution, and the heat evolution is positively related to the square meter of the current. With the increase of welding current, the specification or penetration rate A of the solder joint is improved.
Under all normal conditions, the steel cage winding machine current intensity of the welding area needs to have an effective upper and lower limit. When it is less than the low limit, the calorific value is too small, and no solder joints can be produced; if the high temperature is too high, the heating rate is too fast, which will cause splashing and reduce the quality of spot welding. When the electric power is increased, the upper limit of the amount of welding current that causes spatter is also increased.
In production, when the electric power is given, the steel cage winding machine specified welding compressive strength can be obtained by adjusting the amount of welding current to make it slightly smaller than the splash current. The shape of the single pulse of the welding current and the waveform of the current have an impact on the welding quality. From the point of view of processing technology, the sharp rise and fall of the welding current wave pattern will cause the problem of spattering or welding joints caused by excessive heating and cooling rates.
