2300C High Temperature Tungsten Sintering Furnace Under Vacuum

Introduction

QSH-SZW series vacuum tungsten furnace is a periodic operating furnace. Its interior is carbon-free, eliminating carbon contamination. It is suitable for sintering and degassing high-purity ceramics into transparent ceramics, tungsten electrodes, and other materials under high vacuum, as well as vacuum sintering of tungsten and molybdenum products. It is mainly used for melting and sintering high-melting-point metals, alloys, ceramics, and other materials. It can also be used for bright annealing and degassing of some metals, or for measuring the physical and chemical properties of metals, ceramics, etc., under high-temperature vacuum conditions.

Main Technical Parameters

Power supply: 80 V, three-phase, 50 Hz

Rated power: as per design

Maximum working temperature: 2300 ℃

Working zone size: Φ200×200 mm (customizable)

Temperature control zones: 1 zone

Temperature uniformity: ≤5 ℃

Cold ultimate vacuum: 6.67×10⁻⁴ Pa

Leakage rate: ≤3.3 Pa/h

Vacuum configuration: direct-drive pump + molecular pump + pneumatic high-vacuum butterfly valve + vacuum piping

Electrical control: PLC + touch screen + various electrical components, realizing over-temperature, over-pressure, water underpressure alarms, and gas over-pressure interlock

Chargeable gases: inert gases such as argon and nitrogen for process protection

Charging pressure: ≤0.05 MPa (slight positive pressure; automatic venting if exceeded)

Insulation materials: tungsten sheet + molybdenum sheet

Furnace structure: top-opening; furnace body is SUS304 double-layer stainless steel

Thermometer: tungsten-rhenium thermocouple + dual-color infrared pyrometer