Overview Of Use:

The High Vacuum Crystal Growth Furnace employs induction heating and resistance heating methods, compatible with crucibles made of iridium, platinum, graphite, molybdenum, etc.

 Main Applications And Scope:

It is capable of growing oxide crystals (such as YAG:Nd, Al2O3, TeO2, LiTaO3, LiNbO3, etc.), making it an excellent and reliable equipment for research institutes, enterprises, and institutions to study and produce new crystal materials using methods such as the Czochralski method, descending method, Kyropoulos method, and temperature gradient method.

 Key Functions And Features:

1.High-precision screw rods and high-quality motors ensure a more accurate and stable transmission system.

2.Modular circuit design provides a more stable, reliable, and easy-to-maintain control circuit.

3.A high-precision weight sensor guarantees outstanding automatic diameter control performance.

4.Fully computer-controlled for better crystal shape control and reduced manual monitoring.

5.Real-time display of key parameters allows for a clear view of the crystal growth process.

6.Automatic emergency handling offers safety guarantees for both the equipment and the crucible. 

Technical Parameters:

1. Heating principle: Induction heating, with the crucible placed inside a quartz tube and encapsulated within the outer shell. The molecular pump is externally mounted.

2. Quartz tube dimensions: 80×90×400 for placing crucible insulation materials.

3. Intermediate frequency power: 15KW at 2.5kHz.

4. Ultimate vacuum for a cold furnace: 5×10¨³ PA.

5. Slow pulling speed: 0.1-10mm/h.

6. Fast pulling speed: 10-70mm/min.

7. Rotation speed: 0.1-50r/min.

8. Crucible size: 35×35, capable of heating up to 1600°C with Pt material.

9. Lower seal and quartz tube seal with forced cooling by circulating water. Vacuum pumping and gas filling ports are provided.

10. Upper seal and quartz tube seal with forced cooling by circulating water, and interface with the upper pulling bellows.

11. The rotation mechanism includes a rotation motor and a rotating magnetic fluid seal.

12. The pulling mechanism and rotation mechanism are installed on the moving block of the upper pulling mechanism. The pulling mechanism consists of a stepper motor, reducer, ball screw, guide rail, column, and column rotation mechanism.

13. HMI (Human-Machine Interface) for setting lifting programs, operation, stop, pause, and intermediate frequency start/stop. Lifting control includes slow up, slow down, fast up, and fast down, with adjustable speeds. (Fast up is activated by holding the up button and stops when released.) Rotation control includes clockwise, counterclockwise, stop, and adjustable speeds.

14. Three-color indicator light (red, yellow, green) for fault alarms.

15. The control cabinet includes temperature control, motion control electronics, and other installation parameters.

Note: Customized furnace chamber sizes are available. Please specify any other special requirements when ordering.

Experimental Furnace from Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences - Quality Advantages:

1.Furnace Shell And Chamber

① Double-layer high-quality carbon steel plate with a rust-resistant and high-temperature resistant painted surface.

② Aesthetically pleasing and energy-efficient high-temperature furnace chamber made of poly-crystalline alumina fibers.

2.Electrical Components And Temperature Control

① All electronic components are sourced from Delixi, with thyristors being original equipment from Japan or Germany.

② For safe and efficient operation, an imported all-copper isolated transformer is used.

③ Temperature control and detection are fully implemented using: Single platinum-rhodium (Type S) thermocouples for temperatures up to 1500℃; Double platinum-rhodium (Type B) thermocouples for temperatures up to 1800℃.

3. Research Team

Experienced senior engineers, holding master's and doctoral degrees in engineering from the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, are available to assist your company or research institute in selecting the appropriate experimental furnace. Our senior designers can also collaborate with you to develop a customized high-temperature furnace design plan.