Electromagnetic induction heating, or simply induction heating, heating conductor such as a method of metal materials. It is mainly used in metal heat processing, heat treatment, welding and melting. This heating technology is also applicable to many other areas of packaging and curing. A large number of industrial and consumer products, at some stage of their production process using induction heating technology, but the number of such products is growing rapidly. As the name suggests, the induction heating method using electromagnetic induction internal material is heated (i.e., workpiece) generating a current, relying on heating energy to achieve the purpose of these vortices. Basic components of an induction heating system comprises an induction coil, AC power and the workpiece. Depending on the object to be heated, the induction coil can be made into different shapes. Coil and power supply connected to provide power to the coil alternating current through the workpiece to produce an alternating magnetic field of alternating current through the coil, the magnetic field eddy currents to heat the workpiece. The farther away from the surface, the weaker vortex. Thus, the surface can be used for electromagnetic induction heating and heat treatment. On the other hand, if the thermal conductivity of time long enough, then you can get the whole uniform heating of the workpiece. So electromagnetic induction can be applied through the heat, metal thermal processing and so on. Preheating before welding heat treatment metal processing melt forged hand tools, military equipment gear shaft extrusion building materials hot forging bolts other fasteners rolling slab sheet surface quenching and tempering valve gear shaft of hand tools, machine hardenability spring steel chain annealed aluminum strip steel bars Line pipe welds pieces of stainless steel tubing refrigeration ordinary steel ingot casting billets refining steel vacuum induction melting titanium-nickel alloy sequentially following is a brief introduction of various applications:? metalworking preheating induction heating is widely used in forging and extrusion pressure processes, such as steel, aluminum and titanium, nickel and other metals for processing before preheating. Usually cross-sectional shape of the workpiece are made of a circular, square or rounded rectangular bar. For steel, due to the heating of high speed induction heating process that results in the least amount of scale, so that the loss of material is reduced to a minimum level. ? Heat treatment can be used for surface hardening of steel, penetrating quenching, tempering and annealing, its main advantage is the ability to control the heating area. Induction hardening: It is the most commonly used method of induction heat treatment. It can enhance the material's mechanical strength and wear resistance. Induction Tempering: tempering can enhance the ductility of the steel and prone to breaking. Induction annealing: Annealing can recover steel, aluminum and other metals of flexibility and scalability. ? Melting induction heating method commonly used to melt high quality steel and non-ferrous metals (such as aluminum-copper alloy). Compared with other methods, the advantages of induction law molten homogeneous, while they can prolong the life of the crucible. ? Frequency induction welding can weld energy, because heating energy is concentrated on the solder joints. The most common way is to use a high-frequency welded pipe, it takes full advantage of local heating and easy to control these two characteristics. ? Curable organic coating induction heating can be used to cure the organic coating. For example, in the bottom of the metal is heated, while the metal coating to use this method to generate coating defects can be avoided. Typical application examples are: the metal coating applied to the metal surface and then heated to melt plating coated and cured. ? Some bonding auto parts, such as clutch plate and bonded brake shoe, like coating curing methods, usually induction heating the metal reaches a certain temperature, with an adhesive so that the two quickly bonded. ? Silicon and germanium semiconductor fabrication Generate common induction heating method. Refining by zone-by-zone caused uniform. Semiconductors and semiconductor material doped epitaxial also used the induction heating process. ? Typically when tin tin plating on steel uneven, rough surface dull. If the steel is heated to 230 ℃, it can make the original tin layer melts to flow again to obtain a uniform tin plating, shiny surface of the plate. ? Sintered Induction heating is widely used in the finished sintered carbon compounds, because in a controlled state, the induction heating method capable of graphite retort or applied susceptor temperature of 2550 ℃ carbon compounds. Other ferrous and non-ferrous metal sintering process can also be achieved in a similar way. On the basis of conventional induction heating applications, I metallic heat transfer according to the principles, but also developed a variety of other applications direction:? Hot water system using an induction heating apparatus for heating a metal pipe, thereby heating line of fast-flowing water. It can be used for heating homes, hotels and other places. ? Such processes are heat sealed foil material such as toothpaste heat-sealed in plastic foil or other occasions require bonding. Using induction heating tool or direct heat aluminum foil, so that the plastic bonded together. In addition, there are many new applications we have not found a direction, waiting for you with me to open up. Before the birth of induction heating technology, and are based on gas or petroleum energy to heat the metal and nonmetal devices. In contrast, the electromagnetic induction heating has many advantages, such as: 1. Heating speed: electromagnetic induction heating, the temperature rises faster than the use of oil or gas heated much faster. 2. iron loss: rapid heating can effectively reduce the material loss. With gas as means of fuel, because of its slow heat loss is large (for example, the loss of steel). 3. Start fast: in some heating device, there are a lot of refractories, heat start when they absorb heat, which means a large heating inertia. Induction heating as the main heat from eddy current losses inside the metal, so there is no such problem, thus starting fast. 4. Energy: induction heating does not work when the power can be turned off, because the advantages of induction heating has start fast, not like the other heating methods as always to maintain a certain heating temperature. 5. High efficiency: Since the heating time is short, the induction heating can improve productivity and reduce costs. 6. In addition, there are several advantages of induction heating: 7. easy to control, easy to automate; 8. reduce equipment footprint; 9. working environment quiet, safe and clean; 10. simple maintenance.