Tags for: H value
Testing the performance of the oil
The test uses 2 liters of 60°C quenching oil, and the initial temperature of the probe is 850°C.The... (more…)
Selection of refractory materials for lining repair of coreless power frequency induction furnaces
coreless power frequency induction refractory materials should be selected preferentially for repair... (more…)
Castul (Castrol) index method
Castor proposed the Castor index for grading quenching oils and other cooling media and quenching in... (more…)
Reasons for Secondary Quenching of Intermediate Frequency Electric Furnace
intermediate frequency electric furnace sometimes adopts secondary quenching process during heat tr... (more…)
quadratic square per second method
This method is based on the assumption that the product of the maximum cooling rate and its temperat... (more…)
Transistor frequency conversion medium frequency power supply, medium frequency furnace product performance is superior.
at present, the new generation IGBT transistor variable frequency intermediate frequency power suppl... (more…)
IVF hardening capacity method/hardening capacity index method.
IVF (Swedish Institute of Production Engineering Research) hardening capacity method or hardening ca... (more…)
Dakins method
Dakins method, the formula isH = ax cexp bxd where: is the h value of the Grossman; X is the cooling... (more…)
Development of Induction Heating Technology and Heating Equipment
The principle of induction heating comes from the electromagnetic induction phenomenon discovered by... (more…)
cooling curve evaluation method
Using quenching medium cooling curve to evaluate the cooling performance of the medium has the advan... (more…)