The DC power supply welding machine has the function of current pre -display pre -display, arc current and thrust current regulation function, so that the operation process of welding is simplified.The precise power network will automatically compensate.Not only that, this type of welding machine also has the function of preventing preventive measures such as overcurrent, over pressure, under pressure, and overheating.The safety of welding machines is greatly improved and more reliable.
DC welding machine price
1. Dongsen 200 inverter DC welding machine 220V electric welding machine Household copper core small hand-type welding machine chief welding 3.2 Price: 300 yuan 2. New energy ZX7-250S220V380V dual-power inverter dual-voltage dual-use electric welding machine Household price: 350 50Yuan 3. Tzu Lambo DC home small-scale welding machine ZX7-250/315/315D220V copper core price: 440 yuan
DC welding machine principle
The DC welding machine can be said to be a high -power rectifier. It is divided into a positive and negative electrode. When the AC is input, the rectifier is rectifier after the transformer is transformed, and then the output has a power supply with a decrease.It will generate huge voltage changes. The bipolar bleeds the arc when it is short -circuited in an instant. The arc generated by the arc is used to melt the electrical electrode and welded material to cool down and then achieve the purpose of combining them.The welding transformer has its own characteristics. The external characteristics are the characteristics of the sharp decline in voltage after the strip is ignited.
Common faults of DC welding machines
(1) The cause of the failure of the motor reversal: the three -phase motor and the power grid wiring error.Maintenance method: Switch to two lines in one phase.(2) After starting, the motor speed is low and emitted.The reason for the sound of the buzzing sound: ① a phase of a phase of a three -phase fuse; ② The stator coil of the motor has a disconnection. Sales method: ① replace the new fuse; ② rule out the phenomenon of disconnection.
The difference between DC welding machine and AC welding machine
DC welding machines mainly welded more important items such as boilers, pressure vessels, and alloy structure steel. The advantage is that the items of welded seams are beautiful, with stable arcs, and low splashing and small air consumption during use; generally welding use useThe alkaline stripes are equipped with a DC welding machine. The alkaline stripes have good crack resistance and mechanical properties at the weld after welding.AC welding machines mainly welded low -carbon steel or low -intensity alloy structure steel and other materials. Generally, welding is used for welding. Although the acidic stripes can be used in a DC welding machine, the mechanical performance of the weld is relatively low.Especially the impact toughness is poor.However, the performance ratio of welding process is quite good.
Which brand of DC welding machine is good
New energy DC welding machine This is a 400BT DC welding machine product produced by new energy companies.This DC welding machine has a current adjustment button, which is designed with a beautiful and practical.At the same time, there is also a handle design above the machine. It uses the principle of human engineering mechanics, which is very convenient for us to carry when we carry it. In order to prevent damage to the inside of the machine because of accidental vibration, it is still under the DC electric welding machine.There is a shock -resistant protection pad design that can better protect the machine.And speed up the heat dissipation speed of the welding machine is faster.Andeli DC welding machine This is a 4250 DC welding machine product produced by Andeli.DC welding machine, it has a complete overvoltage protection function, so that once the machine is running, it can automatically protect the internal circuit of the machine.The efficiency operation, and its low loss is more than 1/3 compared to the traditional DC welding machine, and it has an automatic compensation function, which can be used normally even if the cable is extended.

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