Bell-Type Annealing Furnace Technical Specifications
| Parameter | Specification |
|---|---|
| Furnace Type | Bell-Type Furnace |
| Main Processes | Spheroidizing Annealing, Annealing, Quenching, Normalizing, Solid Solution Treatment |
| Applicable Materials | Steel, Stainless Steel, Copper Alloys, Aluminum |
| Batch Capacity | 2–40 tons/batch |
| Effective Loading Diameter | 1,800–4,600 mm |
| Effective Loading Height | 1,800–4,000 mm |
| Heating Power | 75–650 kW |
| Heating Source | Electricity or Natural Gas |
| Protective Atmosphere | Nitrogen, Cracked Ammonia Gas, Hydrogen |
| Control System | PC Touch Screen + Heat Treatment Software |
| Atmosphere Monitoring | Oxygen Probe or Oxygen/Hydrogen Analyzer |
| Furnace Design | Customized to Material and Process Requirements |
How the Bell-Type Furnace Works
The furnace uses a batch heating structure in which the processed material is loaded onto the furnace base and covered by the bell assembly.
1. Material Loading
Steel coils or other metal products are positioned on the furnace base according to the required batch weight and loading dimensions. The effective loading space can be designed within the specified diameter and height range.
2. Heating and Heat Treatment
The heating system raises the material to the required process temperature. Depending on the application, the furnace can perform annealing, spheroidizing annealing, normalizing, quenching, or solid solution treatment.
3. Protective Atmosphere
Nitrogen, cracked ammonia gas, or hydrogen can be used as the protective atmosphere according to the material and treatment process. Atmosphere monitoring can be configured with an oxygen probe or oxygen/hydrogen analyzer.
4. Controlled Cooling
After the required heating and holding cycle, the material is cooled according to the selected heat treatment process. The cooling stage is controlled as part of the programmed furnace cycle.
Spheroidizing Annealing
Used for steel materials that require a softer structure and improved machinability before subsequent forming or machining operations.
Annealing
The furnace provides controlled heating, holding, and cooling for reducing hardness and relieving the effects of previous forming or processing.
Normalizing
The furnace can be configured for normalizing cycles where controlled heating and cooling are required to obtain the specified steel structure.
Quenching
For suitable materials and process configurations, the bell-type system can also be used for controlled quenching treatment.
FAQ
What materials can be treated in a bell-type furnace?
The furnace can be configured for steel, stainless steel, copper alloys, aluminum, and other compatible metal materials.
What heat treatment processes can this furnace perform?
Depending on the furnace configuration and process requirements, it can be used for spheroidizing annealing, annealing, quenching, normalizing, and solid solution treatment.
What protective atmospheres are available?
The system can use nitrogen, cracked ammonia gas, or hydrogen according to the material and required heat treatment process.
Hot Tags: bell annealing furnaces in steel industry, China bell annealing furnaces in steel industry manufacturers, suppliers, factory, Spray annealing furnace, bell type annealing furnace, Bell Type Furnace, bell furnace
