Principles of use of butt welding machine

09 Aug 2022

1. Butt welding process According to the working principle of the butt welding machine, the butt welding process can be divided into two types: resistance butt welding and flash butt welding: Resistance welding is done to cut the ends of the steel bars to the plastic state, then cut off the power, then heat to the plastic connections. This welding process is easy to produce oxidation and cinder joint site, and the required part of the steel bar should be smooth and smooth, and the energy consumption during welding is very high, so the welding machine has a high power, so it is rarely used. Flash butt welding is a process in which molten metal particles during welding create sparks (flashes) during welding. While the molten metal is blown out, the oxides and slag can be brought out, making the welded joints of good quality and widely used, especially in the connection between mild steel and low alloy steel. 2. The following matters should be noted: Adjust the distance between the jaws. ...

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Safe operation of butt welder

04 Aug 2022

Butt welders are also known as current welders or resistance butt welders. Using the resistance between the contact surfaces of the two workpieces, a low voltage and a large current is instantaneously passed through, so that the contact surfaces of the two butt-jointed metals are instantly heated to melt and fuse. Also known as a current welder or a resistance welder. Using the electrical resistance between the two parts, the contact surfaces of the two connecting metals are instantly heated to melt and fuse. The purpose of welding two pieces of metal together. (1) The lower half of the table and the cutter should be kept horizontally. The length of the table can be determined according to the length of the processed material. When machining longer bars, special people should be there to help and follow the operator's orders, not random pushes. (2) Before starting, it is necessary to check whether the cutter should be free of cracks, the bolts should be fixed, and the protective cover ...

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How to weld a butt welder

25 Jul 2022

1. butt welder process According to the working principle of the welding machine, the butt welding process can be divided into two types: resistance butt welding and flash butt welding: Resistance Butt Welding Resistance butt welding is to heat the end of the reinforced joint to a plastic state and then cut off the power, and then heat it to the plastic connection. This welding process is easy in the joint part of oxidation and slag, and requires the steel part to be smooth and smooth. At the same time, welding consumes a lot of power and requires welding power, so it is rarely used. Flash Butt Welding Butt welding means that during the welding process, from the reinforced end of the molten metal particles, sparks (i.e. flashes) are displayed. When the molten metal is sprayed, oxides and slag can also be released, so that the quality of welded joints can be widely used, especially for low carbon steel and low alloy steel butt joint, more suitable. 2. How to use The use of butt welding ...

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What are the common faults and prevention methods of butt welding machine

22 Jul 2022

Butt welders are also known as current welders or resistance butt welders. Using the resistance between the contact surfaces of the two workpieces, a low voltage and a large current are instantaneously passed through, so that the contact surfaces of the two butted metals are instantly heated to melt and fuse When the welding machine is butt welding, since the end of the metal is burned in the heating, the cleaning requirements of the face are not high, but the cleaning requirements of the contact surface of the fixture and the weldment are the same as those of the resistance butt welding, so the equipment has some minor faults due to external factors. . Common faults and preventive measures: 1. Dislocation: The reason may be that the welded parts are not aligned or inclined, the welded parts are overheated, and the discharge length is too large. The welding rigidity is not large enough. The main preventive measures are to improve the rigidity of the equipment, reduce the length of the ...

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Butt welding machine welding method

11 Jul 2022

1. The use of butt welding machine should pay attention to the following points: Adjust the spacing between the two jaws. The jaw spacing should be the difference between the total length of the two welds and the amount of extrusion when the lever is at the left limit. When the joystick is in the correct orientation, the gap between the jaws should be the total length of the two welds plus 2 to 3mm, the original orientation before welding. 2. Adjust the short-circuit limit switch to automatically turn off the power at the end of welding (reach the specified amount of extrusion). Press the shape of the weld, adjust the jaws so that the two jaws are at the same level, and then clamp the weldment. 3. In order to prevent the weldment from overheating instantaneously, please try to increase the adjustment of the welding times and select an appropriate secondary voltage. In bright butt welding, it is appropriate to use a higher secondary voltage. 4. In order to prevent the parts from overhea...

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About the classification of welding machines

06 Jul 2022

What are the main electric welding machines commonly used in industrial and mining enterprises? (1) At present, the welding machines mainly used by industrial and mining enterprises are: AC arc welding machine, DC electric welding machine, argon arc welding machine, carbon dioxide protection welding machine, butt welding machine, spot welding machine, submerged arc welding machine, high frequency welding machine , flash butt welding machine, pressure welding machine, butt welding machine laser welding machine What is the difference between the application fields of AC welding machine and DC welding machine? (2) There are two types of DC welding machines: one is a rectifier element installed under the base of the AC motor, and the other is a DC generator. The DC welding machine mainly welds non-ferrous metals and pig iron. The AC welding machine mainly welds steel plates. The main application areas of inverter welding machine? (3) TIG welding machine, carbon dioxide shielded welding mac...

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