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Another important component of an induction heating furnace is the power supply. This section is a power electronics circuit that converts 50 Hz AC power to AC at the desired frequency. To be fed to the inductor coil to heat or melt metal. In practice, the nature of work is different. For example, surface hardening of the workpiece requires a low surface depth and therefore requires a high frequency, resulting in a high power density. For forging heat applications, a relatively high surface depth is required. therefore the operating frequency is lower, etc.
The operating frequency and output power rating of each induction heater depend on the alternating power source supplied to the unit. and also depends on the equipment used in the circuit Including showing the frequency and application in each range as well.
Induction coil; Induction coil is made of copper conductor wire. K.D. Heat Technology Co., Ltd. provides design and manufacture of induction coils to suit the usage of customers' workpieces. This inductor coil, when a current flows through it, it creates a magnetic field and causes induction in the metal workpiece to generate heat energy. very high heat Therefore, there must be a water cooling system inside the inductor coil to reduce the power loss at the inductor coil. Therefore, it requires people who have expertise in production. The form of the inductor coil varies according to the nature of the material to be heated.
We offer induction heating services that can effectively heat the surface of the metal directly. and can also control the temperature of the workpiece at the desired depth Induction coils designed for sectional heating consist of a confined section of the iron field so that the magnetic field is generated only on certain parts of the metal workpiece to be heated.
The degree of frequency of heat generated in a workpiece depends on a number of factors:
- Size of power of induction heating machine We have- - Machines with sizes from 20KW to 450KW
- The magnetic resistance (Reluctance) and the electrical resistance (Resistance) of the metal workpiece.
- Shape characteristics of the inductor coil and the workpiece
- the frequency of the current fed to the high-frequency alternating current inductor coil Our machines range from 8kHz to 400kHz. The low-frequency current causes induction and heat deep into the material. But high-frequency electric current produces shallow induction and heat from the material surface. Therefore, if any type of workpiece surface depth is required, a specific plating machine with frequency and kilowatts is required to meet that requirement as well. We also have induction coils available for individual hardening applications.
In other words, the surface hardness and the depth are dependent on the frequency. machine power heating time Plating compounds and types of steel All processes and components involved in surface hardening We pay attention to every detail. This hardening method uses a piece-by-piece method to control the quality of work well. We provide surface hardening services for both small and extra large parts. Most of the deep hardness obtained is in the range of 0.5-7mm. You can choose the desired plating as well. Quality control is very good at present. Therefore, low-frequency induction heating has a deeper effect on the surface which is more efficient. For large parts, as a rule, induction heating of small parts requires a higher operating frequency. (often greater than 50 kHz) and larger parts are heated more efficiently at lower operating frequencies.
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