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  • Take you to understand the working principle of high-frequency welding pipe machine
    2023-05-16

    Take you to understand the working principle of high-frequency welding pipe machine

    Unlike other welding machines, high-frequency pipe welding machines have more functions and uses than single welding. High frequency pipe welding machines can not only be used for welding various metal materials, but also for processes such as heat transfer, melting, and heat treatment.The high-frequency welded pipe machine is mainly composed of an uncoiler, a straightening machine, an active straightening machine, a shear welding machine, a storage loop, a forming and sizing machine, a computer flying saw, a milling head machine, a hydraulic testing machine, a feeding roller table, a flaw detection equipment, a packaging machine, a high-frequency DC drive, and the entire line of electrical appliances.High frequency welding pipe machine is a machine that feeds steel strips of a certain specification into the machine, curls the steel strips into pipe billets through forming rollers, and then uses the proximity effect and skin effect of high frequency to quickly heat the pipe edges to welding temperature. Under the extrusion pressure of the extrusion roller, welding is completed, and then the steel tubes of the required specification are cooled, sized, and roughly straightened.Working principle of high-frequency welding pipe machineFirstly, in the high-frequency welding pipe machine, a unique electronic circuit converts the low-frequency AC power input from the power grid (50Hz) into high-frequency AC power (generally above 20000Hz). After the high-frequency current acts on the inductance coil (i.e. induction coil), it is converted into a high-frequency magnetic field through the principle of electromagnetic induction, which acts on metal objects in the magnetic field; By utilizing the eddy current effect, an induced current is generated in a metal object that is proportional to the strength of the magnetic field. This vortex is influenced by the skin effect. The higher the frequency, the more concentrated it is on the surface of the metal object. When eddy currents flow in metal objects, they utilize the principle of electric current thermal effect to generate heat through their internal resistance value. This heat is directly generated inside the object. Therefore, the heating speed is fast and the efficiency is high. It can instantly melt any metal. Heating speed and temperature are controllable. This equipment is particularly suitable for heat treatment quenching, annealing, metal hot forging, extrusion forming, welding of welding materials, etc.What are the forging applications of high-frequency welding pipe machines? 1. The steel plate is heated and bent. 2. Thermal forming of standard parts and fasteners. 3. Hardware tools are formed by heating, such as pliers, wrenches, etc. 4. Squeezing of drill pipe taper shank for exploration. 5. Heat permeable forming of steel pipes, such as elbows.What are the precautions for high-frequency welding pipe machines1. Do not start the machine without understanding its structural performance or operating procedures.During the operation of the machine, the mold should not be inspected or adjusted.3. When the machine discovers serious oil leakage or other abnormal situations (such as unreliable movement, loud noise, vibration, etc.), it should be stopped to analyze the cause and try to remove it. It should not be put into operation with defects.4. Do not overload or exceed the maximum eccentricity.5. It is prohibited to exceed the maximum stroke of the slider, and the height of the mold should not be less than 600mm.6. The grounding of electrical equipment must be firm and reliable.7. End of work every day: Place the slider in the appropriate position.
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  • Introduction to the main advantages of high-frequency welding pipe machines
    2023-05-16

    Introduction to the main advantages of high-frequency welding pipe machines

    The correct installation steps for high-frequency welding pipe machine1. Transfer: Forklifts should be selected to transfer high-frequency welding pipe machines.2. Equipment: The machine should be horizontally fixed on a stable foundation and grounded.3. Oil injection: Open the rear cover of the chassis and add 56 liters of No. 46 anti-wear hydraulic oil to the fuel tank.4. Power on: Connect the power cord of the high-frequency welding pipe machine to the regular power supply of the machine, and rotate the motor to investigate the direction of rotation. The rotation direction of the motor should be consistent with the arrow direction on the motor label. After connecting the wires, turn on the power switch. If the machine moves and the mold opens, the motor rotates in the correct direction. If the machine is not moving, switch between two at will in front of the machine.5. Pressure regulation: The pressure of the machine system is 31.5MPa, which is regulated by the relief valve. The high-frequency welded pipe unit adjusts the pressure clockwise to increase and counterclockwise to decrease.Precautions before using high-frequency welding pipe machineBefore starting up, it is necessary to check whether the safety cover and other safety devices of the equipment are complete and intact. 2. Check if the fixing screws of each part are secure. 3. Check whether the fan in the high-frequency controller operates normally and smoothly. 4. Check if the high-frequency mold and auxiliary tools are complete and intact. 5. After preheating for 5 minutes, start debugging and check the basic performance of the equipment, including high-frequency current, whether the switch is flexible, whether the lubrication parts and other components operate normally, and whether there are any abnormal sounds. Production can only be started after confirming safety, and switch failure is strictly prohibited.Scope of application of high-frequency welding pipe machine1. Welding of hard alloy tools. Such as turning tools, milling cutters, Fried Dough Twists drills, hot rolling, pliers, hammers, wrenches, wire cutters, etc. 2. Welding of diamond drill bits, such as welding of diamond saw blades, welding of grinding tools, and welding of serrations. 3. Welding of exploration drill bits, such as straight drill bits and horn drill bits. 4. Composite welding of metal materials such as brass, copper, and stainless steel pot bottoms. Motorcycle parts heat treatment, standard parts heat block, nut heat block, copper standard material heating.The main advantages of high-frequency welding pipe machines1. High safety factor: No need for flammable and explosive gases, ensuring the safety of life and property. 2. Energy conservation and environmental protection. During the welding process, harmful gases such as carbon monoxide and carbon dioxide are not generated. Due to the use of electricity, the cost is greatly reduced compared to gases such as acetylene, gasoline, oxygen, and liquefied petroleum gas. 3. Low cost: Traditional brazing welding has low temperature, high thermal radiation, high welding cost, and a risk of explosion. The flame temperature of the plasma brazing machine is controllable, and the welding temperature can reach over 2000 degrees. It has high stability and is more than twice the speed of acetylene welding. Can weld continuously for twelve hours. 4. Convenient to carry: As the entire host weighs only a few kilograms and has a small volume, there is no need for acetylene or oxygen cylinders, making it very suitable for working outdoors or in harsh environments.
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  • What are the advantages of high-frequency welding pipe machines
    2023-05-16

    What are the advantages of high-frequency welding pipe machines

    High frequency welding pipe machine is a popular product, but many people are still not familiar with its function. Firstly, it should be noted that the high-frequency welding pipe machine has a high safety factor, as it does not require flammable and explosive gases during operation, ensuring the safety of life and property. During the welding process, harmful gases such as carbon monoxide and carbon dioxide will not be generated. Compared to gases such as acetylene, gasoline, oxygen, and liquefied petroleum gas, the cost is greatly reduced due to the use of electricity. Of course, another important point is low cost: traditional brazing welding has low temperature, high thermal radiation, high cost, and there is also a risk of explosion. The flame temperature of the high-frequency welding pipe machine is controllable, and the welding temperature can reach over 2000 degrees, with high stability, which is more than twice the speed of acetylene welding. Can weld continuously for twelve hours. Another point is that it is easy to carry. Due to the weight of the entire host being only a few kilograms and its small size, there is no need for acetylene or oxygen cylinders. The high-frequency welding pipe machine is very suitable for working outdoors or in harsh environments. It can now be used for welding metal products, such as towel racks, soap nets, bathroom accessories, automotive parts, motorcycle parts, metal material wiring terminals, small hardware, heating pipes, and standard parts.The H-shaped steel welded by high-frequency pipe welding machine has excellent performance. Compared with hot-rolled H-shaped steel, its cross-sectional modulus and bending strength are higher than hot-rolled H-shaped steel under the same unit weight. In steel structure engineering, the amount of steel used for the same component is greater for hot-rolled H-beams than for high-frequency welded H-beams. In steel structure villas, low rise and low rise residential buildings, if used reasonably, their advantages can be fully utilized to achieve the goal of saving steel and reducing costs. Efficient high-frequency welding machines have very reasonable cross-sectional economy. Another important point is the diversification of production varieties for high-frequency welding pipe machines. It is because the equipment mainly fuses metals with the same composition together, and the requirements for the composition of the base material are relatively loose. It can not only weld ordinary carbon steel, but also alloy steel, stainless steel, Al, Cu, Ni, Ti and other alloys. Because the H-shaped steel produced by high-frequency welding pipe machines is limited by equipment and has multiple product specifications. Therefore, it is very popular. Steel fully utilizes the skin effect and proximity effect of high-frequency current, resulting in a high concentration of high-frequency current in narrow welding areas, and the removal of the base metal consumes less in a short period of time.
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