1. Project Background & Challenges

In the production of precision alloys and reactive metals, even trace amounts of gaseous impurities (such as oxygen and nitrogen) can severely impact fatigue strength and magnetic properties. The client required a melting system capable of maintaining extreme vacuum levels while allowing for continuous alloying without breaking the vacuum.

• Core Objective: Achieve an ultimate vacuum of $6 times 10^{-3}$ Pa and support alloying operations under vacuum.

• Applications: Research and small-batch production of nickel-based alloys, precision alloys, reactive metals, and special steels.

2. Technical Support & Parameterized Evidence

The equipment ensures material purity and consistency through the following technical specifications:

• Vacuum Performance: Utilizing a three-stage system (Mechanical + Roots + Diffusion pumps), it reaches an ultimate vacuum of $6 times 10^{-3}$ Pa, effectively degassing the melt.

• High-Temperature Stability: Equipped with a 160 kW IGBT/KGPS medium frequency power supply at 2000 Hz, achieving a maximum temperature of $2300^{circ}C$.

• Vacuum Feeding Process: A comprehensive feeder allows for sequential addition of alloying elements via a handwheel without breaking the vacuum. An optional secondary feeding system is available for continuous operation.

• Monitoring & Structure: The furnace cover features a shielded observation window to prevent metal vapor deposits, while a high-precision touchscreen provides real-time monitoring via a proprietary OS.

3. Technical Specifications Table

• Model: WDL-RLL-50

• Charge Capacity: 500 kg

• Cooling Water Consumption: 25 $m^3/h$

• Control System: High-precision industrial touchscreen with proprietary operating system.