Dear,
We are using Austempering furnace, conveyor Belt type, Electrically heated, to Heatreat the Spring Steel parts. Furnace temperature is maintained at 870 °C ± 5 °C. The furnaces sometimes shows leakge during working and also when we restart the furnace after maintenance. we put Palster of peris to fill the leakage area but it is not effective and leakage start again and again.
can any one suggest the Material and process of applying it which we can use as a leak proof so the leakage can be eliminated.