Basic operating methods of arc welding
Release time:
2023-02-23
【Summary Description】 Arc welding Basic operating methods of arc welding The basic operation method of arc welding: when starting the arc, the end of the electrode must be in contact with the surface of the weldment to form a short circuit, and then quickly lift the electrode up a distance of 2~4mm, at which time the arc is ignited; After the arc is ignited, the normal welding process begins. 1. Arc ignition is the generation of arc. Electrode arc welding is the use of low voltage, high current discharge to produce arc, relying on the electrode instantaneous contact with the workpiece to achieve. After the arc is ignited, the normal welding process begins. 3. The movement of the welding rod is called the transport rod. The transport bar is a concrete manifestation of the technical level of the welder's operation. The quality of the weld and the forming of the weld are mainly determined by the transportation strip. 4. At the end of arc interruption and welding, the crater at the end of the end should be filled. If the arc is broken immediately at the end of the tail, a crater lower than the surface of the weldment will be formed. Porosity, cracks, pores, slag inclusion and other phenomena often occur at the crater, so the finishing action when the weld is completed is not only to extinguish the arc, but also to fill the crater. Arc welding refers to the use of arc as a heat source and the physical phenomenon of air discharge to convert electrical energy into the heat and mechanical energy required for welding, so as to achieve the purpose of connecting metals. The main methods include electrode arc welding, submerged arc welding, gas shielded welding, etc. It is the most widely used and most important fusion welding method, accounting for more than 60% of the total welding production. Electrode arc welding is the most widely used welding method in industrial production. Its principle is to use the heat generated by arc discharge (commonly known as arc combustion) to melt the electrode and the workpiece to form a weld after condensation, so as to obtain a firm joint welding process.
arc welding
Basic operating methods of arc welding
The basic operation method of arc welding: when starting the arc, the end of the electrode must be in contact with the surface of the weldment to form a short circuit, and then quickly lift the electrode up a distance of 2~4mm, at which time the arc is ignited; After the arc is ignited, the normal welding process begins.
1. Arc ignition is the generation of arc. Electrode arc welding is the use of low voltage, high current discharge to produce arc, relying on the electrode instantaneous contact with the workpiece to achieve.
After the arc is ignited, the normal welding process begins.
3. The movement of the welding rod is called the transport rod. The transport bar is a concrete manifestation of the technical level of the welder's operation. The quality of the weld and the forming of the weld are mainly determined by the transportation strip.
4. At the end of arc interruption and welding, the crater at the end of the end should be filled. If the arc is broken immediately at the end of the tail, a crater lower than the surface of the weldment will be formed.
Porosity, cracks, pores, slag inclusion and other phenomena often occur at the crater, so the finishing action when the weld is completed is not only to extinguish the arc, but also to fill the crater.
Arc welding refers to the use of arc as a heat source and the physical phenomenon of air discharge to convert electrical energy into the heat and mechanical energy required for welding, so as to achieve the purpose of connecting metals.
The main methods include electrode arc welding, submerged arc welding, gas shielded welding, etc. It is the most widely used and most important fusion welding method, accounting for more than 60% of the total welding production.
Electrode arc welding is the most widely used welding method in industrial production. Its principle is to use the heat generated by arc discharge (commonly known as arc combustion) to melt the electrode and the workpiece to form a weld after condensation, so as to obtain a firm joint welding process.
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