Vacuum Furnace

Vacuum Induction Melting Furnace

Our Vacuum Induction Melting Furnace (VIM) employs medium frequency induction heating technology combined with an ultra-high vacuum system. This sophisticated configuration enables contamination-free melting of reactive metals and specialty alloys under precisely controlled atmospheric conditions.

Ideal for research institutions and advanced manufacturing facilities, our furnace delivers exceptional control and precision, making it the premier choice for processing a diverse range of high-value materials.

Furnace Features

Adopt IGBT or KGPS medium frequency power supply.
The vacuum system consists of a mechanical pump, roots pump, and diffusion pump, achieving a maximum vacuum level of 7×10-3 Pa.
The alloy feeder is built inside. The material can be fed into the melting crucible by operating the feeder handle.
The furnace cover features an observation window for easy monitoring of furnace performance.
The induction heater features a rectangular copper tube secured to the electrode with mating nuts, allowing for easy disassembly.
The crucible could be placed inside the inductor. The crucible material should follow the melt alloy type.
Secondary direct feeding support.

Superior Material Processing Capabilities

Specifically engineered for critical applications requiring ultra-pure metallurgical results:

Nickel-based superalloys
High-performance steels (Tool, Maraging, Stainless)
Reactive metals (Titanium, Zirconium, Tungsten)
Rare-earth magnetic materials (NdFeB, SmCo)
High-purity semiconductor materials
Advanced intermetallic compounds

Furnace Structure & Components

Induction Coil: The crucible is heated by electric current flowing through copper induction coils. These coils generate a magnetic field, inducing eddy currents in the metal charge within the crucible, causing heating and melting.
Crucible: The crucible is inside the induction coil and holds the metal to melt. Crucibles are typically made of refractory materials to withstand the high temperatures of the molten metal. For example: Magnesia crucible, alumina crucible, zirconia crucible, graphite crucible, etc.
Vacuum Chamber: The vacuum chamber encloses the crucible and induction coil, creating a sealed environment. Air is evacuated from the vacuum chamber by a vacuum system to prevent oxidation and contamination of the metal during the melting process.
Vacuum System: Vacuum pump, vacuum gauge, vacuum valve, etc. Used to evacuate air from the vacuum chamber and maintain the required vacuum level. Normally, Max. vacuum 7×10-3 Pa is enough.
Furnace Body: The furnace body and lid have water-cooled interlayers to ensure that the surface temperature of the furnace body does not become excessively high.
Furnace Tilting Mechanism: Used to tilt the furnace body to pour the molten metal into a mold.
Medium Frequency Power Supply: IGBT or KGPS medium frequency power supply. Provides medium frequency alternating current to the induction coil.
Electrical Control System: Used to control various parameters during the melting process, such as power, temperature, and time.