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Ultra-Purity (5N to 7N)

Induction Zone Refining System

High-purity material purification via induction heating, quartz process tube, controlled translation speed and inert gas atmosphere.

Induction Zone Refining System

Engineered for Mission-Critical Scientific & Industrial Research

Zone refining works on the principle that impurities have different solubilities in liquid and solid phases (segregation coefficient k < 1 or k > 1). By moving a narrow molten zone along an ingot under high vacuum or inert atmosphere, impurities are swept toward the ends, leaving the central ingot at extreme 99.9999% (6N/7N) purity. Biostag Zone Refining Systems integrate high-frequency induction generators, precision water-cooled induction coils, high-purity quartz process chambers, stepper/servo linear motion stages, non-contact optical pyrometers, and PLC synchronized pass control.

Core Technological Highlights

  • Induction Heating & Quartz Chamber
  • Precision Linear Translation & Rotation
  • Pyrometer & PLC Synchronization

Typical Research & Industrial Applications

High-Purity Semiconductors

Germanium (Ge), Silicon (Si), Gallium (Ga), Antimony (Sb) refining.

Nuclear & Radiation Detectors

HPGe (High Purity Germanium) gamma detector crystal purification.

Refractory & Precious Metals

Tellurium, Indium, Bismuth, Tin, and specialized superconducting alloys.

Single Crystal Growth

Bridgman and floating zone directional solidification experiments.

Technical Specifications & Configurable Options

Heating Mechanism High-Frequency RF Induction Generator (5 kW to 25 kW / 100-400 kHz)
Process Tube High-Purity Fused Quartz / Alumina Chamber with water-cooled end flanges
Atmosphere Control High Vacuum (10⁻⁵ mbar) or Inert Purge (Ultra-pure Argon / Nitrogen / Forming Gas)
Translation Speed Ultra-precise linear drive: 0.1 mm/hr to 100 mm/min (Programmable multi-pass)
Workpiece Rotation 0 to 60 RPM bidirectional rotation for radial thermal homogeneity
Temperature Monitoring Non-contact dual-wavelength infrared pyrometer with closed-loop power control

Request Quote & URS Consultation

Direct consultation with our senior engineering team in Delhi.