1, the welding should be first to adjust the position of electrode rod, electrode pressure just to weldment, the electrode arm keep parallel to each other.

2, switch to adjust current series on the choice of the weldment thickness and material and selected. After electrify power light should be bright, electrode pressure spring pressure adjustable nut size, change with the degree of compression.

3, after finish the adjustment, can turn on the cooling water first and then prepare welding power supply is connected. Application of the welding process, welding pieces placed between two electrodes, on waste pedal, and allow the electrodes in contact with the weldment and pressure, pressure on waste pedal, power contactor switch, then start working transformer secondary circuit of electric heated the weldment. When the welding electrode to rise after a certain time to loosen the pedals, borrow the spring tension to cut off the power first and then recover, single point welding process is end.

4, welding preparation and assembly: steel weldment before welding required to remove all dirt, grease, scale and rust, hot-rolled steel, the best welding first after pickling, sand blasting, or with grinding wheel to remove oxide skin. Without clear weldment is able to spot welding, but seriously reduce the service life of the electrodes, at the same time, reduce the production efficiency and quality of spot welding. With a thin coating of low carbon steel can be directly applied in the welding.

In addition, the user can refer to the following when using process data:

1, the welding time: in the welding of low carbon steel, this machine can use strong specifications welding method (instantaneous power) or weak welding (electricity). In strong specifications welding method should be adopted when mass production, it can improve production efficiency, reduce energy consumption and reduce the workpiece deformation.

2, welding current, welding current is determined by the size, thickness and the contact surface of the weldment. Usually the higher metal conductivity, electrode pressure, the greater the soldering time should be shorter. At this point the current density is increased.

3, electrode pressure, electrode pressure butt welding parts in order to reduce the solder joint is the purpose of the contact resistance, and ensure the solder joint formation pressure when needed.

4, shape and size of electrode, electrode composed of chromium zirconium copper processing. The diameter of the electrode contact area is roughly as follows:

Delta 1.5 mm or less, the electrode contact area diameter, delta 2 + 3 (mm)

The delta 2 mm or higher, the electrode contact area diameter, 1.5 g + 5 (mm)

The delta - two of the weldment thinner thickness (mm) of a

The diameter of the electrode shoulds not be too small, lest cause excessive heating and rapid wear.

5, welds arrangement:

Solder joints, the smaller the distance, increase of current shunt phenomenon, and to reduce the pressure of making spot welding, so as to weaken the strength of the solder joints. For low carbon steel or stainless steel solder joint center distance A ≌ delta 16.1 (mm)