What is the difference between low frequency induction furnace and high frequency induction furnace? What are the advantages and disadvantages?

According to the frequency of alternating current used, induction furnaces can be divided into three types: power frequency electric furnace, intermediate frequency electric furnace and high frequency electric furnace. What is the difference between low frequency induction furnace and high frequency induction furnace? :

1. The frequency of the alternating current used is different: the intermediate frequency furnace is a power supply device that converts the power frequency 50HZ alternating current into the intermediate frequency (above 300HZ to 10000HZ); the high frequency furnace usually has a current frequency of one hundred to five hundred kilohertz under clear conditions. between;

2. The higher the frequency, the lower the heat transmission capacity;

3. The effective hardening depth of the intermediate frequency furnace is 2 to 10 mm, and the main application range is parts requiring a deeper hardening layer; the effective hardening depth of the high frequency furnace is between 0.5 and 2 mm.

4. The intermediate frequency furnace can be used to smelt various metals of 50kg-60000kg; high-frequency induction heating is suitable for smelting precious metals of 1kg-5kg.

5. The intermediate frequency furnace is large in size and mature in technology; the high frequency furnace is small in size, fast in operation and low in price.