Introduction

The 5kg Vacuum Induction Melting Furnace is a compact yet powerful system tailored for university laboratories and research institutes. With a desktop design, it is ideal for alloy development, sample casting, high-temperature sintering of non-metallics, and melting under protective atmospheres or vacuum.

Key Features

• Fast Melting Rate: Capable of reaching 2100℃ (with optional thermal insulation jacket).
• Precise Temperature Control: Optional programmable controller allows users to define custom heating and cooling curves.
• Casting Functionality: Includes a pouring system to cast molten metal into molds for sample shaping.
• Multi-Atmosphere Operation: Supports smelting in air, protective gases, or under high vacuum (optional upgrade).
• Elemental Addition: An Optional secondary feeding system allows additive materials to be introduced during melting.

Furnace Structure and Components

• Induction Coil： Water-cooled copper coil powered by a medium-frequency power supply, generating a magnetic field to heat the metal through electromagnetic induction.
• Crucible： Located inside the coil, used to hold and melt metal. Common materials include magnesia, alumina, zirconia, and graphite for high-temperature resistance.
• Vacuum Chamber： Encloses the coil and crucible in a sealed environment to prevent oxidation and contamination during melting.
• Vacuum System： Consists of vacuum pumps, valves, and gauges to evacuate air and maintain a high vacuum level, typically up to 7×10⁻³ Pa.
• Furnace Body with Water Cooling： The furnace shell and lid are equipped with water-cooling jackets to control external surface temperature and ensure operational safety.
• Tilting Mechanism： Allows the furnace body to tilt for smooth and controlled pouring of molten metal into molds.
• Medium-Frequency Power Supply： IGBT or KGPS units providing 10–30 kHz medium-frequency current with high efficiency and power control.
• Electrical Control System： Controls key process parameters such as power, temperature, time, and vacuum level; supports automated or semi-automated operation.

Optional Accessories

• Si₃N₄ Loading Box
• Si₃N₄ Protection Board

Technical Parameters