Several production of home electric welder

- Dec 26, 2017 -

The welding machine is also called ac welding transformer, and it is actually a special kind of step-down transformer.The principle of the transformer is similar to that of ordinary transformer, which is based on the principle of electromagnetic induction, but in order to meet the requirements of welding process, the welding transformer is slightly different from the ordinary transformer.

  1. The secondary output of the transformer cannot be short-circuited, while the welding transformer is working in short circuit.

  2. When the normal transformer is running with load, the secondary voltage varies very small with the load, and the welding transformer requires a certain arc voltage of 45V ~ 75 V at welding.When the welding current increases, the output voltage drops rapidly to 20V ~ 40V.

  3. The primary and secondary windings of common transformers are set on a core-column, while the primary and secondary windings of the arc welding transformer are divided into two core columns (or with an additional leakage resistance).

In daily life, it is sometimes necessary for short - time emergency welding, to make a simple home electric welding machine can solve the problem.Below is about household 220 V 8 kw electric welding machine of two kinds of method:

method 1: selects the cross-sectional area of about 40 cm2 ? silicon steel sheet iron core column, winding around the core in the mouth words respectively on the two columns of the primary coil copper wire with phi 2 mm yarn package, in around 330 turn on one of the pillars (220 V alternating current), subordinated to use 2 mm x 6 mm flat copper wire (commonly known as copper platoon) around 102 turn no-load voltage 68 V, used for soldering, points 2 and a half, and half around the primary (and secondary coil and insulation insulation), the other half in another column.The layer between the copper wire and the layer should be separated by insulating film to heat the heat. When necessary, the fan can be added according to the fan specifications (voltage, ac, etc.).

Method 2: choose the mouth of the cross-sectional area about 40 cm2 glyph silicon steel sheet iron core column, winding around the core in the mouth words respectively on the two columns of the primary coil copper wire with phi 2 mm yarn package, in around 330 turn on one of the pillars (220 V alternating current), subordinated to use 2 mm x 6 mm flat copper wire (commonly known as copper platoon) on the primary coil and insulation insulation after 40 turn around, turn around 35 turns on the tap to another column for the "weak", no-load voltage of 50 V, 15 turns around tap again to "in", the no-load voltage of 60 V, continue to around 15 turn tap to "strong", no-load voltage of 70 V.The layer between the copper wire and the layer should be separated by insulating film to heat the heat. When necessary, the fan can be added according to the fan specifications (voltage, ac, etc.).

In addition, it can be used to connect 220V at one end with the yarn wrapped copper wire of 1.5mm for 380V (total 608 turns). The secondary turns can be the same.

Related Products