What is the difference between high frequency welding machine and AC spot welding machine

The purpose of a high-frequency welding machine is to energize the electrodes while pressurizing the welding parts, and to melt the metal "instantly" using the Joule heat generated by the contact resistance between the electrodes. No need to add solder, high efficiency and low cost. Features such as easy automation. The medium frequency inverter spot welding machine adopts high-performance pneumatic components. The main shaft and guide shaft are chrome-plated and round. The transmitted pressure is sensitive and firm, and no virtual position occurs. Then, let's take a look at the difference between a high-frequency welding machine and an AC spot welding machine. Bar!

The high-frequency welding machine adopts optimized design to produce high-permeability materials through secondary internal forced cooling, with low no-load loss, strong output power, stability and long life. Welding controller chooses digital integrated operating system or microcomputer resistance operator operation (optional), with parameters such as pressurization time, welding time, delay, rest, welding current, double foot pedal, double pulse, double current operation function, thyristor Temperature monitoring function Various welding operators meet different functions and can be used for multiple purposes. The welding primary loop is operated by bidirectional water-cooled thyristor to ensure the balance and firmness of the current output.

High-frequency welding machine refers to the transformer and manipulator that use ordinary hanging spot welding machine. How can it be used for various purposes? Therefore, it is necessary to make each workpiece support. For example, if you install rebound welding pliers, you can weld large surfaces. Cooperative pneumatic chucks can also weld projection weld nuts and screws. Also, it can be replaced and used as a butt welder.

The current common root spot welder is just an example, but a few joints and pneumatic systems are added to the AC spot welder. The root spot welder is a pseudo concept. The AC spot welder is a variant of the suspension spot welder. In order to overcome the current loss, the secondary voltage design is very high, and the amount of sputtering during welding is larger than that of the fixed spot welder. Of course, there are all-in-one welding machines on the market at present, which save less effort and sputter. The welding thickness of a 30KVA one-piece welding machine is completely comparable to that of a 160KVA ordinary hanging spot welder.

What is the difference between AC spot welding machine and high frequency welding machine?

1. Welding time: 50Hz power grid, the resolution of welding time adjustment is 20ms. The time adjustment resolution of the intermediate frequency inverter DC contact welding machine can reach 0.25ms (4khz inverter frequency), and the operation accuracy is high. The response speed of the reaction operation of the intermediate frequency inverter welding machine is obviously accelerated, and the output stability is good.

2. Welding speed: The AC spot welding machine is affected by the zero-crossing of the current, and the heating time is relatively long. The intermediate frequency inverter resistance spot welding machine is DC output, heating is concentrated, and the welding time is shortened.

3. Energy saving effect: The operation of the AC spot welding machine is 50Hz, the transformer loss is large, the power factor of the welding machine is low, and the circuit loss is large. The transformer of the intermediate frequency inverter welding machine has a high working frequency (1-4kHz), low loss, and DC output improves the power factor and has a significant energy saving effect.

4. The transformer core of the AC spot welding machine with the equipment volume and weight is larger, and the equipment is heavier under the same power conditions. The medium frequency inverter DC resistance spot welding machine has greatly reduced transformers and light equipment.