I. Equipment Overview
The BF125-17 High-Temperature Bell Furnace is a high-performance, high-precision vertical lifting high-temperature sintering equipment. Adopting advanced electric heating and control systems, it is specially designed for stringent high-temperature heat treatment processes. It is particularly suitable for the sintering, annealing, and heat treatment of high-end materials such as ITO targets, electronic ceramics, magnetic materials, and ceramic filters.
II. Main Application Fields
- Sintering of ITO targets
- Sintering of electronic ceramic materials
- Heat treatment of magnetic materials
- Sintering of ceramic filters
- Other high-temperature treatment processes requiring protective atmosphere or air environment
III. Technical Performance Indicators
| No. |
Item |
Technical Specifications and Parameters |
| 3.1 |
Rated Temperature |
1600ºC |
| 3.2 |
Maximum Operating Temperature |
1700ºC |
| 3.3 |
Effective Furnace Chamber Dimensions (W×H×D) |
500 × 500 × 500 mm |
| 3.4 |
Maximum Heating Power |
50 kW |
| 3.5 |
Empty Furnace Holding Power (1500ºC) |
≤ 25 kW |
| 3.6 |
Heating Element |
U-shaped silicon-molybdenum rod |
| 3.7 |
Furnace Temperature Uniformity |
±5ºC (tested after holding temperature in empty furnace for 2 hours at 1500ºC) |
| 3.8 |
Temperature Control Accuracy |
±1ºC (high-temperature constant temperature section) |
| 3.9 |
Heating Rate |
400~1000ºC: ≤5ºC/min; 1000~1500ºC: ≤2ºC/min |
| 3.10 |
Number of Temperature Control Points |
1 point |
| 3.11 |
Temperature Measuring Thermocouple |
R-class (Platinum-Rhodium 13-Platinum) |
| 3.12 |
Power Control Method |
High-performance phase-shift voltage regulation + SCR thyristor module |
| 3.13 |
Temperature Control Instrument |
Imported intelligent temperature controller from Japan, supporting P.I.D control and self-tuning function |
| 3.14 |
Bell Cover Lifting Stroke |
Approx. 800mm (lead screw lifting mechanism) |
| 3.15 |
Maximum Worktable Load Capacity |
≤ 1000 Kg (including products, racks, and carriers) |
| 3.16 |
Exhaust System |
An exhaust chimney is configured on the furnace top, and the chimney cover supports automatic opening and closing for process waste gas discharge |
| 3.17 |
Safety Protection Functions |
Equipped with sound and light alarm and automatic protection functions for faults such as over-temperature, thermocouple breakage, over-current, over-load, over-travel, and deviation |
| 3.18 |
Equipment Overall Dimensions (W×H×D) |
Approx. 1740 × 2780 × 2505 mm (excluding independent control cabinet) |
| 3.19 |
Equipment Net Weight |
Approx. 2000 Kg |
IV. Overall Equipment Structure and Composition
The equipment adopts a mature bell-type vertical furnace design, mainly composed of the following parts:
Furnace Body System: Including the furnace chamber made of high-strength refractory and thermal insulation materials, stainless steel outer frame, and furnace shell.
- Heating System: High-quality U-shaped silicon-molybdenum rods are used as heating elements, which are evenly arranged around the furnace chamber to ensure excellent temperature uniformity.
- Lifting System: A precision lead screw transmission mechanism drives the bell cover furnace body to lift and lower stably with accurate positioning.
- Trolley System: A heavy-duty load-carrying trolley that can move under load, facilitating product loading and unloading.
- Exhaust System: An automatically opening and closing exhaust chimney is installed on the furnace top to effectively discharge the gas generated during the sintering process.
- Control System
- Control Cabinet: Independently installed, with built-in core electrical components.
- Temperature Control Core: An imported multi-segment programmable temperature controller from Japan is adopted to realize precise curve control of heating, heat preservation, and cooling processes.
- Power Regulation: SCR thyristor module is used for phase-shift voltage regulation control, with smooth adjustment and minimal impact on the power grid.
- Human-Machine Interface: Operated through the temperature controller panel, which intuitively displays temperature curves, real-time status, and alarm information.
| Table 1 Delivery list |
|
Item |
Note |
Qty. |
| Basic Components |
Furnace |
|
1 SET |
| Inspection Certificates |
Certificates of major outsourced components |
1 SET |
| Technical Documents |
Instructions, technical documents of the major outsourced parts, etc |
1 SET |
|
| Key Components |
Heating Plate |
U-shaped silicon molybdenum heater |
1 SET |
| Baking plate |
Corundum-mullite. |
1 SET |
| Thermocouple |
THERMOWAY |
1 SET |
| Lifting System |
|
1 SET |
| Temperature Control Module |
Azbil |
1 SET |
| PLC |
SIEMENS |
1 SET |
| Touch Screen |
MCGS |
1 SET |
| Spare Parts |
Heating Element |
U-shaped silicon molybdenum heater |
1 PC |
Hefei Chitherm Equipment Co., Ltd. is an advanced equipment supplier specializing in the research and development, design, manufacturing, sales, maintenance, and service of high-, medium-, and low-temperature industrial furnaces and laboratory furnaces. Its product range encompasses bell furnaces, box furnaces, hot air furnaces, vacuum furnaces, tube furnaces, mesh belt furnaces, bogie hearth furnaces, rotary furnaces, roller hearth furnaces, and pusher furnaces, which are extensively applied in fields such as advanced ceramics, electronic components, thick-film circuits, additive manufacturing, powder metallurgy, new energy, and photovoltaics. These furnaces are suitable for thermal treatment processes of materials including ITO targets, MLCC/HTCC/LTCC, ceramic filters, magnetic materials, CIM/MIM, and lithium battery cathodes and anodes, as well as various other new material processes such as pre-sintering, dewaxing, degreasing, sintering, drying, heat treatment, curing, and ceramization.
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