The basic requirements of arc welding power supply, the scope of application of arc welding

From an economic point of view, the arc welding power supply is required to be simple and lightweight, easy to manufacture, less material consumption, power saving, and low cost; From the point of view of use, the arc welding power supply is required to be convenient, reliable, safe, good performance and easy to maintain.

In terms of electrical characteristics and structure, arc welding power supply also has characteristics that are different from general power supply. This is mainly due to the fact that the load of the arc welding power supply is an arc, and its electrical performance should be adapted to the characteristics of the arc load. Therefore, the arc welding power supply should ensure that the arc is easy to start, the arc is stable, the welding specification is stable, and the welding specification is stable enough, and it has a wide enough range of welding specification adjustment.

In order to meet the process requirements, the electrical performance of the arc welding power supply should consider the basic requirements of the external characteristics of the arc welding power supply, welding current, load voltage, no-load voltage, regulation performance and power dynamic characteristics.

Answer: In order to ensure the stable combustion of the welding arc and adapt to the requirements of various welding processes, the arc welding power supply has the following special requirements:

1. The static characteristics (or external characteristics) of arc welding power supply - that is, the relationship between the steady-state output current and the output voltage, there are descending characteristics (constant current characteristics) and flat characteristics (constant voltage characteristics).

a. The external characteristics of electrode arc welding, TIG welding and carbon arc gouging power supply are descending (constant current) characteristics;

B. The external characteristics of CO2 mag MIG arc welding power supply are flat characteristics (constant voltage characteristics).

2. The dynamic characteristics of the arc welding power supply - when the load state changes instantaneously (such as: the short-circuit transition of molten droplets, the transition of particles, the transition of jets, etc.), the relationship between the output current and the output voltage of the arc welding power supply and time is used to characterize the response ability to load transients (i.e., dynamic reaction ability), referred to as "dynamic characteristics".

Hello dear, the principle of electrode arc welding arc welding power supply? When welding electrode arc welding, the basic requirement for welding power supply is that the current can not be too large or too small, and the welding arc welding is the power supply of dust roll refers to CO2 gas shielded welding, 1. Flat characteristics or slow drop external characteristics, and the no-load voltage is 38 70V. The number of 2 arcs is strong, the short-circuit current is large, the arc is easy to start, and the wire is not sticky.

3. When operating, you will feel that the arc is calm, soft, elastic, and there is less splashing. 4. The receiving current is generally required to be 380V, I hope mine can help you. <>

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Electrode arc welding is to manually manipulate the electrode for welding work, and can carry out multi-position welding such as flat welding, vertical welding, horizontal welding and vertical welding. In addition, because the electrode arc welding equipment is light and flexible, it can be used to carry out welding operations anywhere there is a power supply. It is suitable for welding of various metal materials, various thicknesses and various structural shapes.

Safety characteristics of electrode arc welding: The no-load voltage of electrode arc welding equipment is generally 50V to 90V, and the safety voltage that the human body can withstand is 30V to 45V.

Summary. The duty cycle of the electrode arc welding power supply is the sum of the welding time and intermittent time in the cycle, which is usually expressed as a percentage.

The duty cycle of the electrode arc welding power supply is the sum of the welding time and intermittent time in the cycle, which is usually expressed as a percentage.

Can you tell us more about that?

The working cycle of the electrode arc welding power supply refers to the change cycle of the welding current. In electrode arc welding, the periodic change of current has an important impact on the welding effect. The working cycle of electrode arc welding is generally determined on the basis of the current cycle of the welding bucket field.

The typical cycle time ranges from tens to hundreds of milliseconds. The current cycle determines the parameters required for the welding process, including gaps such as welding voltage, current, and welding temperature. If the cycle is too long, it will lead to problems such as welding deformation and loose structure; If the cycle is too fast, it will affect the welding quality and may even cause short circuits and arc burning.

Therefore, when selecting the welding cycle, it is necessary to comprehensively consider factors such as material properties, welding requirements and equipment special ridge properties to ensure welding quality and safety.

Summary. Arc welding machine, also known as arc welding transformer, is a special transformer, which turns the alternating current of network voltage into low-voltage alternating current suitable for arc welding, which is composed of the main transformer and the required regulating part and indication device.

Hello, I'm glad Zhaolu your question, about Biyou your question Modern arc welding power supply is generally inverter or digital, with an independent family Huiqing single-chip microcomputer control system, which makes the current stable, safe, controllable and green.

Arc welding machine, also known as arc welding transformer, is a special transformer, which turns the local voltage alternating current of the network electrical friend into a low-voltage alternating current suitable for arc welding, which is composed of the main transformer and the required adjustment part and the open excitation indication device.

1. Modern arc welding power supply has more rock ridge functions, such as intelligent adjustment of welding current to achieve automatic control; The traditional arc welding power supply can only be operated to manually adjust the welding current. 2. The modern arc welding power supply can automatically complete the welding process, while the traditional land return arc welding power supply cannot be automated and needs manual control. 3. Modern arc welding power supply has higher flexibility and can meet different welding needs, while traditional arc welding power supply is simpler and can only be used for specific welding processes.

4. The efficiency of modern arc welding power supply is higher, safer and more stable, which can meet the welding requirements of different materials, while the efficiency of the arc welding power supply is low, not very safe, and the requirements for materials are relatively high.