Induction heating systems are versatile tools used in various applications, from melting metals to hardening parts. The frequency at which these systems operate is crucial, as it directly affects the depth of heat penetration and the type of workpieces they can handle. Here’s a breakdown of the key frequencies used in induction heating systems.
What is the Frequency of Induction Heating Systems? 4 Key Frequencies Explained
1. High-Frequency Induction Heating
High-frequency induction heating systems operate at a frequency range of 100 to 500 kHz. This frequency is ideal for applications that require precise, shallow heat penetration. For example, it’s commonly used for smelting small amounts of precious metals, typically between 1 to 5 kg. Additionally, it’s suitable for hardening small to medium-sized parts with an effective hardening depth of 0.5 to 2 mm. Parts like small module gears and medium-sized shafts benefit from this type of heating due to the thin hardened layer it provides.
2. Medium Frequency Electric Induction Furnace
Medium frequency electric induction furnaces operate within a frequency range of 150 to 8000 Hz. This broader frequency range makes them suitable for a variety of applications, including melting, heating, and heat treating. Unlike high-frequency systems, medium frequency furnaces can handle larger workpieces and deeper hardening requirements. This makes them a versatile choice for many industrial processes.
3. Medium Frequency Induction Heating Power Supply
Medium frequency induction heating power supplies typically operate between 1 kHz and 10 kHz. These systems are designed for larger applications such as tempering, quenching, and heating. They are ideal for large-size workpieces like large diameter thick wall pipes and other large components that require deep heat penetration.
4. Super Audio Frequency Induction Heating Power Supply
Super audio frequency induction heating power supplies operate at frequencies higher than medium frequency but lower than high frequency. While the specific frequency range is not detailed, these systems are often used for applications requiring intermediate heat penetration depths. They provide a balance between the shallow penetration of high-frequency systems and the deep penetration of medium frequency systems.
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