High-temperature sintering furnaces are fundamental equipment in modern industry and are essential in the preparation of many materials. To better understand them, we categorize them as follows:
1. Based on Heating Method
- Electric heating furnaces: Offer high temperature control precision and a cleaner heating environment. Ideal for processes requiring strict temperature control and minimal contamination.
- Gas-fired furnaces: Have lower operating costs (approximately 1/3 less than electric furnaces) and can achieve faster heating rates. Suitable when cost efficiency and rapid heating are priorities.
Users can choose based on their specific process requirements.
2. Based on Industrial Kiln Type
- Batch production furnaces: Include lifting furnaces, car-type (platform) furnaces, and shuttle kilns.
- Advantages: Lower cost.
- Disadvantages: Lower productivity; a single sintering batch may take several days.
- Continuous production furnaces: Include push-plate kilns, roller kilns, tunnel kilns, and mesh belt kilns.
- Advantages: High throughput due to continuous loading and unloading.
- Disadvantages: Frequent stops are discouraged, as they shorten the furnace’s service life and increase energy consumption during reheating.
- Notes: Push-plate and roller kilns have good airtightness, suitable for materials requiring a strict atmospheric environment.
3. Based on Operating Temperature
- Mesh belt furnace: Low-temperature type, operating around 900°C.
- Roller kiln: Medium-temperature type, operating below 1350°C.
- Push-plate, lifting, and car-type furnaces: High-temperature type, operating up to 1720°C.
Manufacturers can select the appropriate furnace based on sintering temperature, production capacity, and atmospheric requirements for the material.