Principle of high-frequency welding machine, high-frequency welding machine use, high-frequency welding machine knowledge
The high-frequency welding machine is different from other welding machines, its function and use are not Just a single solder. High frequency welding machine can not only be used for welding of various metal materials, but also for diathermy, melting, heat treatment and other processes. Soldering is just one of its many uses.
The working principle is:
First of all, a set of unique electronic circuits in the high-frequency machine will input from the power grid The incoming low frequency alternating current (50Hz) is converted into high frequency alternating current (generally above 20000Hz). After the high-frequency current is added to the inductive coil (ie, the induction coil), it is converted into a high-frequency magnetic field by the principle of electromagnetic induction, and acts on the metal object in the magnetic field; using the eddy current effect, a magnetic field proportional to the magnetic field strength is generated in the metal object. Induced current, this eddy current is affected by the skin effect, the higher the frequency, the more concentrated on the surface of the metal object. When the eddy current flows in the metal object, it will generate heat by means of the internal resistance value and the principle of current heating effect. This heat is generated directly inside the object. Therefore, the heating speed is fast and the efficiency is high. Instantly melts any metal object. And the heating speed and temperature are controllable.
This equipment is especially suitable for heat treatment quenching, annealing, metal diathermy forging, extrusion forming, brazing filler metal welding, etc.
Heat treatment industry
2. High-frequency quenching heat treatment for hardware tools, such as vices, hammers, strong pliers, and wrenches.
3. Hydraulic components such as: the plunger of the plunger pump, the rotor of the rotor pump, the reversing shaft on various valves, the gear of the gear pump, etc. are subjected to high-frequency quenching.
4. High-frequency quenching heat treatment for gear shafts of various power tools.
5. All kinds of woodworking tools, such as: axes, planers and other heat treatment.
Heating (hot forging, hot fitting, smelting):
1. Hot forging mainly heats the workpiece to a certain temperature (depending on the material) The heating temperature is also different), and the workpiece is forged into other shapes by punching, forging or other forms. For example: watch case, watch embryo, handle, mold accessories, kitchen tableware, handicrafts, standard parts, fasteners, mechanical parts processing, copper locks, rivets, steel brazing, hot extrusion of brazing tools, etc.;
2. Thermal fit 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 fusion. 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, the metal into a liquid, mainly suitable for the melting of iron, steel, copper, aluminum, zinc and various precious metals, such as gold and silver;
Forging industry
1. The steel plate is heated and bent to form.
2. Standard parts, diathermy forming of fasteners.
3. Heat diathermy for hardware tools, such as pliers, wrenches, etc.
4. Extrusion of the taper shank of the prospecting drill rod.
5. Heat forming of steel pipes such as pipe bends.
Brazing industry:
1. Welding of carbide tools. Such as turning tools, milling cutters, twist drills, hot rolling, pliers, hammers, wrenches, wire breakers, etc.;
2. Welding of diamond heads, such as welding of diamond saw blades, abrasive tools, and sawtooth welding.
3. Welding of drill bits for prospecting, such as welding of a sub-drill bit and a claw bit.
4. Composite welding of metal materials such as brass, red copper and stainless steel pot bottoms.
Automobile and motorcycle parts heat treatment, standard parts hot pier, nut hot pier, copper standard heating.
Main advantages:
1. High safety factor: no flammable and explosive gas is required, which ensures the safety of life and property.
2. Energy saving and environmental protection, no harmful gases such as carbon monoxide and carbon dioxide are generated during the welding process. Since electricity is used, the cost is greatly reduced compared to the use of acetylene, gasoline, oxygen, LPG and other gases. Save thousands of dollars at least.
3. High efficiency and low cost: The traditional brazing welding temperature is low, the heat radiation is high, the welding cost is high, and there is a danger of explosion. The flame temperature of the plasma brazing machine can be adjusted, the welding temperature can reach more than 2000 degrees, and the stability is high, which is more than twice the welding speed of acetylene. Twelve hours of continuous welding.
4. Easy to carry: Because the whole host is only a few kilograms in weight and small in size, it does not need acetylene cylinders or oxygen cylinders, so it is very suitable for outdoor or harsh environments.
