Description
Centorr/Vacuum Industries revolutionary Belt Furnace design is unlike any other continuous furnace on the market. Introduced in the early 1990's, this design combines the fast throughput of a continuous furnace, with the high temperature capability of a refractory metal or graphite-lined hot zone.
The cold wall chamber and watercooled jail design ensures low ambient temperatures around the furnace, even when operating at temperatures up to 2000°C.
Features
- Cold Wall Vacuum furnace design with stainless steel inner and outer jackets with baffled water cooling.
- Operation to 2000°C. Temperature uniformity of ± 5°C in uniform effective hot zone. Specials to 2800°C.
- Repeatable temperature profiles on every component produced.
- PLC with Industrial Programmable Controller or PC system using Intellution℡ FIX32 HMI software customized by Centorr/Vacuum Industries for continuous furnaces, with extensive data acquisition, and remote operation capabilities.
- Patented Tungsten mesh belt design with Molybdenum, Tungsten, or Tantalum metal hot zones.
- Novel Silicon Carbide link belt design for use with Graphite Board hot zone.
- Inert gas system or positive pressure Hydrogen gas system with burn-off towers at entrance and exit tunnels for reducing atmospheres.
- Cold wall design offers rapid heat up and cool down times (2-3 hours from RT - 2000°C) compared with 3-5 days for heat-up/cool-down of refractory hot wall units.
- Large cycle time reduction translating to excellent throughput. Typical 15 hr "door-to-door" batch furnace cycles can be reduced to 2-4 hr continuous furnace cycles with improved quality.
- Thin, low mass insulation system does not trap moisture while the system is cold, eliminating days of "conditioning" to control furnace dew point below -60°F.
- System designed for quick and easy access to the furnace hot zone for repairs and preventative maintenance.
- The smaller work cross section in a continuous furnace offers minimal thermal inertia compared to large batch furnaces, shortening cycle times.
Specifications
| STD MODEL* | 2BF | 4BF | 6BF | 8BF | 44BF | 66BF | 124BF |
|---|---|---|---|---|---|---|---|
| Uniform Effective Hot Zone WxHxL in (mm) | 2x0.5x8 (50x13x200) | 4x0.62x8 (100x16x200) | 6x1x36 (150x16x200) | 8x1x48-72 (200x25x1220) (200x25x1828) | 4x4x36-96 (100x100x914) (100x100x2440) | 6x6x36-96 (150x150x914) (150x150x2440) | 12x4x36-96 (305x100x914) (305x100x2440) |
| Molybdenum Hot Zone | 1550°C (2822°F) | ||||||
| Tungsten Hot Zone | 1800°C (3270°F) Silicon Carbide Belt - 2000°C (3630°F) in Ar, N2/1800°C (3270°F) in Hydrogen W Mesh Belt | ||||||
| Graphite Hot Zone | 1800°C (3270°F) Silicon Carbide Belt - 2200°C (3990°F) Graphite Cloth Fabric Belts - Specials to 2800°C (5072°F) | ||||||
| Belt Speed | 0.4" - 6"/min (10-152mm/min) | ||||||
| Inert Gas Flow (slpm) | 14 | 28 | 70 | 90 | 140 | 160 | 220 |
| Approx. Power Supply Size Inert (Hydrogen)** KVA | 25 (30) | 30 (35) | 120 (150) | 200 (240) | 200 (240) | 240 (300) | 350 N/A |
| Water Requirements gpm (liters) | 7 (26) | 9 (34) | 35 (133) | 55 (208) | 55 (208) | 68 (257) | 80 (303) |
| Florr Space ft (m) | 4x10 (1.2x3.1) | 4x10 (1.2x3.1) | 5x14 (1.5x4.2) | 6x16 (1.8x4.9) | 6x16 (1.8x4.9) | 6 x16 (1.8x4.9) | 7x16 (2.1x4.9) |
*Custom sizes available upon request.
**Power is for shortest hot zone listed.
Materials Processed
- Refractory Metals
- Powders
- Si3N4
- Ceramics
- MIM components
Optional Features
- CE / VDE / TüV / CSA approvals and other non-U.S. standards for compliance.
- Rigid or Flexible water cooled busswork for improved maintenance and best electrical efficiency.
- Manual rotameter or Mass Flow Controllers for precise, repeatable gas flow.
- Optional Binder Removal System consisting of thermal oxidizer in dedicated debind zone with inner retort designed for durability, ease of replacement and low cost for efficient binder removal.
- Automatic loading and unloading conveyor system with optical proximity switch sensors for notification of work boats exiting the furnace.
- Improved densification, minimized weight loss (dissociation), and preferred crystallinity are all benefits in ceramic processing.
Contact Us
800.962.8631
603.595.7233
sales@centorr.com