Heat Treatment Equipment: Defects and countermeasures of carburizing parts in quenching furnace are common

The carburized layer presents large bulk or reticular carbides

Mesh belt furnace defects cause: high surface carbon concentration

1. Drip carburizing, drip too large

2. Control atmosphere carburizing, rich gas too much

3. Liquid carburizing, salt bath cyanide root content is too high

4. Carburizing and quenching furnace air cooling, cooling rate is too slow

Countermeasures:

1. Decrease the surface carbon concentration, reduce the amount of drops in the dispersion period and improve the humidity in the dispersion period, and also reduce the amount of drops in the carburization period

2. Carburizing agent to reduce solid carburizing

3. To reduce the content of cyanogen in liquid carburizing

4. Summer room temperature is too high, after infiltration air cooling parts can be blown cold

5. Improve the quenching heating temperature of 50~80 C and extend the heat preservation time appropriately

6. Two mesh belt type quenching furnace quenching or normalizing + quenching, but also normalizing + high temperature tempering, then quenching furnace tempering

Related products:

Controllable Atmosphere Of Sealed Box Multi-Purpose Furnace

How To Increase The Service Time Of High Temperature Furnace