1000°C Multi-zone Tubular Furnace

temperature

project

1000℃

Voltage AC

380V

Temperature control accuracy

±1℃

External dimensions / floor space

1350*350*1200/1750*350*1200mm

Long-term temperature

900 degrees

highest temperature

1000 degrees

Furnace tube material

Quartz glass tube

Heating zone size

100*250mm*4

Number of heating zones

Five temperature zones, each 250mm in length, with four sets of temperature control instruments.

Flow meter

Float flow meter 30L/min

vacuum pump

Mechanical rotary vane pump

Temperature uniformity inside the furnace

±1℃

Temperature sensing element and temperature measurement range

Nickel-chromium and nickel-silicon K temperature measurement range: 0-1350℃

Number of program curve segments

A set of 30 segments

heating rate

Adjustable from 1 ℃ /h to 20 ℃ /min

Furnace body

The furnace body is machined using CNC machine tools, and undergoes polishing, grinding, pickling, phosphating, powder coating, and high-temperature baking. It features a two-tone design, a novel and attractive appearance, and possesses advantages such as oxidation resistance, acid and alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning.

Furnace body structure

The electric furnace body adopts an internationally advanced air-cooled double-layer furnace body structure. Effective air-cooling guide baffles ensure overall cold air circulation within the furnace shell, ultimately cooling the conductive plates of the heating elements before they are discharged from the furnace body, thus preventing high-temperature oxidation of the conductive plates and guaranteeing a good working environment.

Furnace door opening method

The furnace door opens electrically up and down , preventing the inner wall of the furnace door from scorching your arms when taking out materials at high temperatures. The furnace door lock is located at the bottom of the furnace door and uses a stainless steel buckle, which can effectively lock the door and ensure the free expansion and contraction of the refractory material under thermal expansion and contraction while effectively sealing it.

Refractory materials

The furnace lining uses high-purity alumina fiber and vacuum-formed fiber lightweight board material. Lightweight hollow spherical alumina plates are used in areas prone to material handling (furnace opening and furnace bottom). It has high operating temperature, low heat storage, resistance to rapid heating and cooling, no cracking, no slag shedding, and good heat preservation performance (energy saving effect is more than 80% of that of old-style electric furnaces ).

thermal insulation materials

It adopts a three-layer insulation system, consisting of alumina fiber cotton, alumina fiber board, and alumina polycrystalline fiber board, achieving an energy-saving effect of over 80% compared to traditional electric furnaces .

Furnace shell temperature

For long-term use without shutting down the furnace, the outer casing temperature should be less than 45 degrees Celsius .

Protect

The system employs an integrated modular control unit, ensuring accurate control precision. It also features dual-loop control and dual-loop protection, providing protection against overshoot, over-adjustment, under-adjustment, thermocouple breakage, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft start.

control

Employing closed-loop technology with thyristor module trigger control, phase-shift trigger control, or zero-crossing triggering, the output voltage, current, or power is continuously adjustable, exhibiting constant voltage, constant current, or constant power characteristics. The current loop is the inner loop, and the voltage loop is the outer loop. When a sudden load is applied or the load current exceeds the current limit, the output current of the voltage regulator is limited to the rated current range, ensuring normal operation of the output and the voltage regulator. Simultaneously, the voltage loop also participates in regulation, limiting the output current of the voltage regulator to the rated current range, maintaining constant output current and voltage with sufficient adjustment margin. This protects the heating elements from excessive current and voltage surges, achieving safe, reliable control and high control accuracy.

Display parameters

Temperature, temperature range number, time period, remaining time, output power percentage, voltage, current, etc.

Button

It features a preferred button with a lifespan exceeding 100,000 uses and includes an LED indicator.

Temperature profile setting

Employing an intelligent temperature controller, it offers multiple adjustment modes including standard PID, AI-based APID, and MPT. It features self-tuning and self-learning capabilities, excellent control characteristics with no overshoot or undershoot, and 30-segment programmable control. It can achieve temperature rise and fall control with arbitrary slopes and provides programmable/operable commands such as jump (loop), run, pause, and stop, allowing modification of the program at any time during operation. Utilizing an AI-based adjustment algorithm with curve fitting capabilities, it achieves smooth and even curve control.

Multiple curve inputs

The program control function has 30 segments (50 segments can be customized). The input settings are: 30 (50) segments for one curve, 14 (28) segments for two curves, 9 (15) segments for three curves, and 5 (9) segments for five curves. Multiple curves can be input at the same time and can be called up at will when in use.

Communication interface

The electric furnace is equipped with an RS485 communication interface with a communication distance of up to 1000 meters. It can be controlled by computer to start, pause, stop, set and read the heating curve, and set parameters. It is highly reliable and easy to operate. The computer screen displays a wealth of information, including measured values, setpoints, output values, time intervals, segment numbers, heating curves, and power percentage curves. Heating curves can be stored on the computer and can be recalled and modified at will. Setpoints and commonly used parameters can be modified. Historical curves and historical reports can be filtered by time interval (1 second to 1 hour) and can be stored for a long time.

Accessories

One crucible tong, one pair of high-temperature gloves, two sealing flanges, two alumina furnace plugs, and one pair of silicone O-rings.

Warranty coverage and period

Electric furnace comes with a one-year free warranty.