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 ...
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 ...
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...
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...
The working principle of electric welding machine
01 Jul 2022
It uses the high-temperature arc generated when the positive and negative poles are short-circuited instantaneously to melt the solder on the electrode and the material to be welded to achieve the purpose of combining them. The structure of the electric welding machine is very simple. To put it bluntly, it is a high-power transformer that converts 220V AC into a low-voltage, high-current power supply, which can be either DC or AC. The welding transformer has its own characteristics, that is, it has the characteristics of a sharp drop in voltage. After the electrode is ignited, the voltage drops. In the adjustment of the working voltage of the electric welding machine, in addition to the one-time 220/380 voltage conversion, the secondary coil also has a tap conversion voltage. ...The electric welding machine is generally a high-power transformer, which is made of the principle of inductance. The inductance will produce a huge voltage change when it is turned on and off. It uses the high...
Welder safety operation rules
21 Jun 2022
1. Operating procedures for electric welders (1) Electric welding (gas cutting, gas welding) workers must undergo physical examination, professional training, and work with certificates. Wear protective equipment before work, carefully check the safety and reliability of electric and gas welding equipment and equipment, and check in advance when operating pressurized containers, airtight containers, and pipelines. To rinse clean. Welding and cutting in the container requires two people to take turns, and one person to monitor outside. The lighting voltage should be below 36 volts. (2) Strict implementation. "Three-level fire protection approval system". It is forbidden to store inflammable and explosive materials in the welding site. Fire-fighting equipment is provided according to regulations, and sufficient lighting and good ventilation are ensured. (3) The shell of the electric welding machine should be effectively grounded, and the grounding or zero connection, and the working retu...