Welding rectifier to improve

How does it work?

Straightener welding machine - a device that converts alternating current to direct current.The device welding rectifier power transformer, rectifier unit, measuring, protective and regulating equipment start-up.A transformer changes the power supplied from the network to the energy required for welding work, as well as agree on the values ​​of the mains voltage to the output voltage.

single-station welding rectifiers three-phase transformers are used, as it helps to reduce the ripple voltage, which makes the welding connections of lower quality.Current controller allows you to create a hard or falling external characteristic.This makes it possible to set welding conditions and the desired voltage value.

welding rectifier scheme is simple enough: he is going on a three-phase bridge circuit, sometimes in a single-phase full-wave rectification circuit.Three-phase design gives a more even tension and good technical and economic performance.Conductors are silicon or selenium valves.

Note!For home use three-phase scheme will also be the best option.

family rectifiers

Power design is different, and it affects the formation of several types of rectifiers:

• adjustable transformer;
• Thyristor;
• Adjustable transistors;
• Inverter;
• throttle saturation.

Also, they are divided into types according to the current-voltage characteristics.Mechanized submerged arc welding machines with self-regulation in the arc operates with single-station rectifiers with rigid characteristics.Less commonly used multioperator welding rectifiers.Often these involved a transformer with a normal magnetic dissipation.There are several ways of voltage regulation:

• Regulation Vítkov - used in the rectifier with a partitioned winding;
• Magnetic - used in devices with magnetic saturation of the communication and the throttle;
• phase - in thyristor rectifier;
• Pulse - this method has the inverter welding rectifier.

Note! manual welding devices used rectifiers with falling external characteristics.

Welding rectifier home

Many masters will be able to confirm that a homemade welding rectifier, which is made qualitatively, nothing will not yield to the factory unit.For its creation does not need to have deep knowledge in the world of electronics and mechanics, you just have in place all the necessary elements.The design of its next.The rectifier combined with transformer and cooling fan.Sam is going rectifier diodes, which are mounted in the center of the brackets on the radiators.

Each diode on all sides by the air flow is blown through the fan and the inner funnel.However, that is blowing was quality, it is necessary to consider the layout of the device.Thus, the large diameter holes must be on coupling cover and the base to which the fan is mounted.A diode is required to connect to the common terminal and the other - to one of the terminals of the transformer.

Important!If the voltage is 6-18 volts, then both diodes made transients.

This welding rectifier with their hands to gather a snap.With the help of improved ignition by increasing the open circuit voltage.Also, the amount of heat is increased, which is very useful for welding thin parts.