Analysis of the reason why the power of the intermediate frequency electric furnace cannot be increased?

Analysis of the reason why the power of the intermediate frequency electric furnace cannot be increased?

 

Trouble phenomenon: The equipment is working normally, but the power can't go up

 

Analysis and processing: The equipment is working normally, which can only indicate that the components of the equipment are in good condition. If the power is not increased, it means that the parameters of the equipment are not adjusted properly. The main reasons that affect the power of the equipment are:

 

1. The rectifier part is not adjusted properly, the rectifier tube is not fully turned on, and the DC voltage does not reach the rated value, which affects the power output

 

2. The intermediate frequency voltage value is adjusted too high or too low, which affects the power output

 

3. Improper adjustment of the cut-off and cut-off pressure values makes the power output low

 

4. The furnace body is not matched with the power supply, which seriously affects the power output

 

5. If the compensation capacitor is configured too much or too little, the power output with the best electrical and thermal efficiency cannot be obtained, that is, the best economic power output cannot be obtained.

 

6. The distributed inductance of the intermediate frequency output circuit and the additional inductance of the resonance circuit are too large, which also affects the maximum power output

 

IF electric furnace other requirements

 

In the bearing steel material standards, there are also strict requirements on the smelting method, oxygen content, annealing hardness, fracture, residual elements, spark inspection, delivery status, and identification of bearing steel.

Intermediate frequency electric furnace has particularly strict surface decarburization requirements

 

There are strict regulations on the decarburization layer of the steel surface in the bearing material standard. If the surface decarburization layer exceeds the specified range of the standard, and it is not completely removed during the processing before heat treatment, it will be removed during the heat treatment and quenching process. It is easy to produce quenching cracks, resulting in scrapped parts.

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