Induction Heating Equipment: Market oriented, technology driven and quality based

The actual use and working principle of Foshan high frequency machine

by:Kehua     2022-08-03
High-frequency machines are widely used in some metal processing industries. Such high-frequency machines are very energy-saving and environmentally friendly, so they are very popular. Let us and Kehua understand the actual use and working principle of Foshan high-frequency machines. Foshan high-frequency machine 1. High-frequency machine The high-frequency machine is currently the induction heating equipment with the highest heating efficiency, the fastest speed, low consumption, energy saving and environmental protection for metal and non-metallic materials. The full name of high-frequency machine is 'high-frequency induction heating machineHigh-frequency induction heaters (welders), etc., as well as intermediate frequency induction heating equipment, ultra-high frequency induction heating equipment, etc. The application range is very wide. 2. Working principle 1. The high-frequency and large current of the high-frequency machine flows to the heating coil (usually made of copper tube) that is wound into a ring or other shapes. As a result, a strong magnetic beam with an instantaneous change in polarity is generated in the coil. When a heated object such as a metal is placed in the coil, the magnetic beam will penetrate the entire heated object, and in the opposite direction of the heating current inside the heated object, it will generate Correspondingly large eddy currents. Due to the existence of resistance in the heated object, a lot of Joule heat will be generated, and the temperature of the object itself will rise rapidly. To achieve the purpose of heating all metal materials. 2. In the high-frequency machine, a set of unique electronic circuits convert the 50Hz low-frequency alternating current input from the external power supply into high-frequency alternating current above 20000Hz; after the high-frequency current is added to the inductance coil, it is converted into high frequency by the principle of electromagnetic induction. The magnetic field acts on the metal object in the magnetic field; the eddy current effect is used to generate an induced current in the metal object that is proportional to the magnetic field strength. When the current flows in the metal object, it will rely on the inherent resistance value inside, The heat is generated by using the principle of current heating effect. This heat is directly generated inside the object. Therefore, this heating method has high speed and high efficiency. If needed, it can melt any metal in an instant. Moreover, its heating rate and temperature are controllable. 3. Practical use Heating 1. Hot forging mainly heats the metal workpiece to a certain temperature (the heating temperature is different according to the material), and then forges the workpiece into other shapes by punching, forging or other forms. For example: watch case, watch embryo, handle, mold accessories, kitchen tableware, handicrafts, standard parts, fasteners, machining of mechanical parts, copper locks, rivets, steel brazing, hot extrusion of brazing tools, etc. 2. Hot fitting mainly refers to the connection between different metals or between metals and non-metals by heating the metals, using the principle of thermal expansion or thermal melting. For example: the copper core of the computer radiator and the aluminum sheet, the buried value welding of the speaker mesh, the compounding of the steel-plastic tube, the sealing of the aluminum foil (toothpaste skin), the motor rotor, the sealing of the electric heating tube, etc. 3. Smelting It mainly refers to the high temperature of the metal to convert the metal into a liquid, which is mainly suitable for iron, steel, copper, aluminum, zinc and various precious metals. Such as the melting of gold and silver. Heat treatment It mainly changes the hardness of metal materials by heating the workpiece and other treatments. The specific applications are as follows: 1. Various hardware tools and hand tools. Such as quenching of pliers, wrenches, hammers, axes, screwdrivers, scissors (garden shears), etc.; 2. Various auto and motorcycle accessories. Such as quenching of crankshaft, connecting rod, piston pin, sprocket, aluminum wheel, valve, rocker shaft, transmission half shaft, small shaft, fork, etc. 3. Various power tools. Such as gears, shafts; 4. Machine tool industry. Such as the quenching of machine bed surfaces, machine tool guide rails, etc.; 5. Various hardware metal parts, machined parts. Such as quenching of shafts, gears (sprockets), cams, chucks, fixtures, etc.; 6. Hardware mold industry. Such as quenching of small molds, mold accessories, mold inner holes, etc.; Foshan high-frequency machine The above is the introduction to the practical use and working principle of Foshan high-frequency machine introduced by Kehua. The high-frequency machine is very popular because of its very good safety performance. welcome.
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