Product Description:

　　Bridgman crystal growth (crucible descent method), using either a resistance furnace or an induction heating furnace, is commonly employed for the growth of single crystals of alkaline earth metal halides and fluorides. The equipment primarily consists of a heating furnace chamber, a sealed furnace tube chamber, a servo pulling-up and descending mechanism, a control system, and a vacuum system.

Heating Furnace Chamber:

　　The furnace chamber is entirely constructed using alumina fiber materials through a unique numerical control process. The fibers can withstand temperatures up to 1400°C. After the lining is completed, a layer of high-temperature curing agent is sprayed on the surface, forming a layer of thermal insulation wall. This enhances the strength and thermal radiation performance of the lining surface and further reduces heat storage losses in the lining, achieving rapid heating and maximizing the thermal efficiency of the furnace. This results in excellent energy-saving effects. The insulation material is composed of a composite insulation layer made of high-alumina fiber ultra-hard board, zirconia-containing high-alumina needle-punched blanket, and high-alumina refractory fiber products, providing excellent thermal insulation performance.

　　1. Design Temperature: 1100°C

　　2. Operating Temperature: ≤1000°C

　　3. Heating Power: ≤10Kw ±10%

　　4. Heating Method: Imported Kantor resistor wire heating

　　5. Quartz Tube Dimensions: Φ100×1200mm

　　6. Heating region Length: 200+200+200mm, with independent control for three regions

　　7. Temperature Control System: Thermocouple + Programmable Instrument for Automatic Temperature Control

　　8. Temperature Control Element: Imported Malin K-type Thermocouple

　　9. Ultimate Vacuum Degree: ≤50pa (no load in cold state)

Sealed Furnace Chamber:

　　The furnace tube employs high-temperature-resistant quartz, sealed at the top and bottom with KF stainless steel water-cooled flanges (water source to be provided by the buyer). The upper flange is designed with a Bridge-slow mechanism interface and welded bellows connections, utilizing a servo motor for high-precision and adjustable lifting speeds. Additionally, magnetic fluid seals are incorporated.

Servo Lifting Device:

　　Motor control is achieved through PLC + touch screen, allowing for arbitrary setting of speed and displacement according to process requirements, ensuring stable travel speed and positional accuracy.

　　Slow Speed: 0.01-10mm/h (servo-controlled)

　　Fast Speed: 50-200mm/min (servo-controlled)

　　Displacement Stroke: 600mm

Control System:

　　Temperature control is managed by Xiamen Yudian AI808P phase-shifting voltage regulation. Displacement control is handled by Mitsubishi FXPLC, with all operations intelligently managed via a human-machine interface, including stop, pause, program setting, and lifting speed adjustment.

Vacuum System:

The vacuum system is configured with a single-stage pump, comprising a BSV40 mechanical pump, electromagnetic pressure differential valve, charging valve, vent valve, automatic pressure relief valve, vacuum pressure gauge, digital vacuum gauge, and other devices. The connection between the vacuum pipeline and the pump uses metal bellows to reduce vibration. Vacuum measurement is performed by the digital vacuum gauge.