Graphite Vacuum Furnace IGBT Experimental Graphitization Furnace

Introduction

The experimental graphitization furnace is a laboratory-specific equipment designed for universities, scientific research institutes, and other units. It serves the purpose of sintering and graphitization of carbon materials, sintering of carbon fiber ropes, and sintering and graphitization of carbon fiber filaments, among other materials that can be sintered in a carbon environment. This furnace offers high heating efficiency, ease of operation, and applicability in experiments, scientific research, teaching demonstrations, and other industries.

Applications

The IGBT experimental graphitization furnace finds applications in various industries and research fields, including:

• Ceramic firing
• Carbide growth
• Carbonization
• Graphitization
• Sintering
• Annealing
• Brazing
• Degassing

Features

The IGBT experimental graphitization furnace is a valuable tool for universities, research institutes, and other organizations. Its compact design, efficiency, and ease of use make it an ideal choice for a wide range of applications.

• Small footprint, low noise, and low energy consumption: The furnace's compact design and efficient operation make it easy to integrate into any laboratory setting.
• Ultra-high-temperature furnace body within 3000℃: The furnace can reach temperatures of up to 3000℃, making it suitable for sintering and graphitization of various materials.
• IGBT series induction heating: The furnace uses IGBT series induction heating, which reduces high-order harmonics and pollution to the power grid.
• Energy-saving: The furnace saves up to 15% more energy than traditional thyristor intermediate frequency power supplies.
• Programmable controller and human-machine interface: The furnace features a programmable controller and human-machine interface, enabling automated operation and three working modes: fully automatic, semi-automatic, and manual.
• High safety: The furnace is equipped with a comprehensive PLC water, electricity, gas automatic control and protection system, ensuring safe operation.

Principle

The IGBT experimental graphitization furnace utilizes the principle of induction heating to achieve high-temperature graphitization. IGBT (Insulated Gate Bipolar Transistor) technology provides efficient and precise power control, minimizing harmonic distortion and reducing grid pollution. The furnace is equipped with a programmable controller and human-machine interface, enabling automated operation and real-time monitoring of process parameters. The advanced safety features include PLC-based control of water, electricity, and gas, along with sound and light alarms to ensure safe and reliable operation.

Advantages

• The IGBT experimental graphitization furnace has a small footprint, is low-noise, and consumes low energy.
• The ultra-high temperature furnace body (within 3000℃) can fully meet the sintering and graphitization requirements of various materials.
• The use of IGBT series induction heating results in fewer high-order harmonics and less pollution to the power grid, ensuring that it will not interfere with the operation of electronic equipment.
• The product saves electricity, achieving 15% more energy savings than the old thyristor intermediate frequency power supply.
• Equipped with a programmable controller and human-machine interface, the entire process can be automated and has three working modes: fully automatic, semi-automatic, and manual.
• The furnace features high safety, with a comprehensive PLC water, electricity, gas automatic control and protection system, including sound and light alarms for over-temperature, sensor failure, water pressure, water flow, furnace over-pressure, and ultra-high water temperature.

Technical parameters and model specifications

High temperature zone volume: medium 100-300mmX100-300mm, or customized according to users

Working atmosphere in the furnace: vacuum, hydrogen, nitrogen, argon

Temperature uniformity: ≤±10℃

Temperature measurement: Infrared optical temperature measurement (1000~3200℃) (low temperature infrared thermometer 300-1100℃ can be equipped on request)

Temperature measurement accuracy: 0.2~0.75%

Temperature control: program control and manual control; temperature control accuracy: ±1℃

Limit heating rate: 100℃/minute (empty furnace, depending on the volume of the high temperature zone and the furnace structure)

Comprehensive PLC water, electricity, gas automatic control and protection system. The connecting cable between the control cabinet and the furnace body can be up to 20m long, and is used for remote control of the equipment.

Configuration options：

Horizontal double door structure/vertical top opening cover

The vacuum pump adopts rotary vane pump/rotary vane pump + Roots pump + digital display vacuum gauge

Temperature measurement system: dual colorimetric infrared thermometer (1000-3200℃)/tungsten-rhenium thermocouple (0-1700℃) + dual colorimetric infrared thermometer (1000-3200℃)/single color infrared thermometer ( 300-1100℃) + dual colorimetric infrared measurement

Thermometer (1000-3200℃)

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