Three Heating Zones Tube Furnace

Model

TOB-G1100-250-III

Voltage

AC 220V 50HZ (Customized to 60HZ)

Heating power

＜15KW

Furnace tube size

250*1800mm (Diameter* Length)

Furnace tube material

High purity calcined quartz tube

Heating zone

Three Zones : 250mm*1200mm

Constant temperature zone

250mm*800m

Maximum operating temperature

1100℃

Long term operating temperature

1000℃

Heating element

Imported Kangtaier resistance wire

Full coverage heating method. (Resistance wire, with one zone at the top and bottom, heating length of about 500mm per zone, constant temperature difference±5℃(holding for 30 minutes with no load in the constant temperature zone)

Heating rate

1-20 ℃/min, adjustable

Recommended heating rate

3-8 ℃/min

Control accuracy

±1℃

Atmosphere

Oxygen, Nitrogen, Argon and other atmospheres

Temperature measuring element and temperature measuring range

K thermocouple, temperature measurement range 0-1200 ℃. The thermocouple is close to (contact) the outer wall of the tube, which can reduce the outer temperature to normal temperature and make the temperature distribution in the inner cavity uniform.

Electrical components

Chint or Schneider brands

Instrument control

YudianGP518P

Sealing components

Flange

Vacuum system

Low vacuum 200-2000pa

Flowmeter (optional)

50-500ml/min

Control mode

Control mode: full automatic control system, which can run automatically from room temperature to set temperature. The system is controlled by thyristor, and the temperature control system is modularized, with simple structure and convenient maintenance. It adopts Yudian instrument, imported thyristor control, programmable 30 sections, multi-section power limiting function, multi group PID parameter self-tuning function, free setting of constant temperature and insulation curve, non-interference switching function, and the instrument has the function of temperature correction and compensation.

Number of programmed curve segments

30 sections are adjustable, which can reduce unnecessary trouble caused by manual setting.

Digital display

Double display of measuring temperature and setting temperature.

Heating power column display

Display accuracy

±1℃

Furnace layout

Control characteristics

Modular structure of control system, long-life design of key components of equipment, simple and reliable process, good stability and high precision.

Air cooling system

The fan impeller is directly installed at the bottom of the double-layer furnace shell and assembled with the control system. When the furnace is heated, air cooling can reduce the surface temperature of the furnace shell and protect the heat dissipation of electrical appliances, make personnel operation safer and improve efficiency.

Refractory material

The furnace lining adopts imported high-purity alumina fiber, vacuum formed fiber material and light hollow aluminum oxide plate. It has high service temperature, small heat storage capacity, rapid heat and cold resistance, no crack, no slag falling and good thermal insulation performance (the energy-saving effect is more than 80% of that of the old electric furnace). Double furnace structure, which not only has fast heating speed, but also has the characteristics of strong and durable, and no collapse in long-term use.

Thermal insulation material

Imported alumina multi fiber insulation material, the insulation layer is 120mm.

Shell

It is welded by steel plate and profile, and the shell is equipped with detachable protective plate, which adopts electrostatic spraying and paint baking. Fine workmanship and elegant appearance.

Furnace structure

Double layer furnace shell structure, air cooling circulation, reduce the shell temperature, and the shell surface temperature is less than 55℃. The surface of the inner furnace is coated with high-temperature alumina coating, which can improve the heating efficiency of the equipment and prolong the service life of the instrument.

The opening between the furnace door and the furnace body is secured by a stainless steel lock ring connected by hinges.

Furnace structure feature

The furnace body is heated on all four sides, including heating elements, thermocouples, and controllers. Part of the furnace materials are composed of ceramic fiber materials and hollow spherical alumina. The upper part of the furnace is a mesh furnace cover, and the carbon steel plate on the side of the furnace body is 3mm. In order to prevent heat loss in the form of thermal radiation, double furnace door seals are used.

Energy saving performance

Light weight, fast temperature rise, energy saving more than 50%, time-saving and labor-saving.

Spare parts

One manual, one Crucible tongs, one pair of high-temperature gloves.