As a general rule, the heating rate during the sintering process is related to the capacity/dimensions of the furnace. It can range from about 100°C/h for large furnaces to 200°C for
furnaces with smaller capacities.
BIG FURNACE Approx 100ºC/hour
SMALL FURNACE Approx 200ºC/hour From a refractory point of view we can present solid and liquid sinterings, each with its advantages and disadvantages that are subject to the need/experience/knowledge of the client.
Steps to follow in a liquid sintering process:
- Preparation of the furnace to receive the impact of the liquid metal.
- Preheat the furnace to 850°C-1000°C
- Liquid metal pouring.
- Temperature measurement.
- Heating up to sintering temperature gradually.
As a proposal to be considered in steel sintering, we recommend the use of INSECOAT TAG, a refractory paint that is applied on the former in a way that allows maintaining the former for a longer period of time when high temperatures +1200ºC are being reached in the furnace sintering. In this way the lining sinters in optimal conditions, avoiding problems.