When the work coil is driven by a voltage-fed full-bridge (H-bridge) inverter there is yet another method of achieving power control. Ultra Fast Melting Gold Silver Machine Ultra High Frequency Induction Heating Melting Furnace for Melting Gold Silver Machine with Quartz Crucible. 1mm), small size, light weight, low failure rate and conservation of energy (it can save the power by70%as compared with glass-ceramic vacuum tube high frequency heating equipment). Induction hardening boosts throughput. The power supplied by the inverter to the work coil can be reduced by detuning the inverter from the natural resonant frequency of the tank circuit incorporating the work coil. These properties are desirable for parts that experience torsional loading and surfaces that experience impact forces. The electrical frequency influences the process of induction heating. The equipment has the control function of constant current and constant power, which greatly optimizes the heating process of metal, realizes efficient and fast heating, and gives full play to the superior performance of products. The top graph shows the AC magnitudes of these two quantities, whilst the bottom graph shows the relative phase of the signals relative to the AC output voltage from the inverter.
The PFC capacitor provides reactive current flow equal and opposite to the large inductive current drawn by the work coil. If you are looking for ultrahigh frequency quenching (brazing) equipment from reliable manufacturer, welcome to contact us for more information! Certification: ISO9001. Due to the adopting of our third generation inverting control technology, These machines are acterized not only with high power and high frequency, but also with high reliability on the condition of normal IGBT module. Therefore the current drawn from the inverter by the matching network starts to lag in phase and diminish in amplitude. This means you can harden the particular area that you want to harden, while leaving the rest of the component soft enough to machine further.
Website: If you were interested in thismarket research story, you may also be interested in the ones below, This content has been published by Prudour Pvt. An induction work coil is located close to the getter on the outside of the vacuum tube and the AC source is turned on. It is small in size and is equipped with movable casters, which is very convenient. The market report documents all global important business players joined with their company profiles, size, product value, product specifications, capability. Induction coil heater is widely used in metal processing, hardware, household appliances, automotive, and other industries that require heat source equipment, such as thermoforming, welding, quenching, smelting, annealing, heat matching, and other processes. Whilst it may appear to work fine with no workpiece fitted or only moderate heating loads, it does not track the resonant frequency correctly and will fail to operate satisfactorily as the workload increases and network Q falls! See the picture opposite. For ferrous metals like iron and some types of steel, there is an additional heating mechanism that takes place at the same time as the eddy currents mentioned above. The power factor seen by the inverter always remains good because the inverter is not detuned from the resonant frequency of the work coil, therefore reactive current flow through free-wheeling diodes is minimised. To achieve different cooling effects, it can usually use two cooling methods. However this can be contrasted with the inverter that generates the high frequency power.
Therefore a small current is always drawn from the inverter even with no workpiece present. Place Style: Vertical. It has automatic and manual welding functions, and its operation is simple and practical. High Frequency Induction Heating MachineReport Covers Following Questions: 1. Capacity, Production, Revenue (Value) by Region). Iron Loss (20 kHz / 0. High Frequency welding for the clock and watch's shells. Inside a transformer the passage of eddy currents is highly undesirable because it causes heating of the magnetic core and represents power that is wasted. In other heating techniques, heat is produced by a heating element or a flame, and applied to the work piece.
Furthermore it consistently passes through the -90 degree phase-lag point exactly at the frequency which gives maximum power regardless of how heavily the work coil is loaded. The major difference in these types is the frequency employed, which has a significant effect on the penetration depth. Small volume, simple operation, a few minutes to learn. This skin effect forces the alternating current to flow in a thin layer towards the surface of the workpiece. Induction is a curious member in the family of heat treating.