Laboratory high temperature furnace

The small benchtop high temperature furnace control system is integrated with the furnace. The lining is made of vacuum-formed high-purity alumina polylight material.

Laboratory high temperature furnace uses high-temperature alloy resistance wire or silicon carbon rod as heating element; it is designed for universities, research institutes, laboratories and industrial and mining enterprises for ceramics, metallurgy, electronics, glass Special equipment for sintering, melting, analysis and production of chemical, mechanical, refractory materials, new material development, special materials, building materials, metals, non-metals and other chemical materials.

The control panel is equipped with intelligent temperature regulator, control power switch, main heating work/stop button, voltage, ammeter, computer interface, so as to observe the working status of the system at any time. This product adopts reliable integrated circuit, good working environment and resistance. Interference, the maximum temperature of the furnace shell temperature ≤60℃ greatly improved the working environment, microcomputer program control, programmable curve, automatic temperature rise / cool down, can be modified during the operation of temperature control parameters and procedures, flexible and convenient, simple operation.

Temperature control accuracy: ±1℃

accuracy: ±2℃

The heating rate is fast, and the fastest heating rate is ≤50/min.

The small benchtop high temperature furnace materials are all vacuum-formed high-purity alumina polylight materials, which have high use temperature, low heat storage capacity, resistance to rapid heat and rapid cooling, no cracks, no slag, and good heat preservation performance (energy saving effect is more than 60% of old-fashioned electric furnaces). The structure is reasonable, the inner and outer double-layer furnace sleeves, air cooling and heat dissipation can greatly shorten the test period.

Category

Working temperature: 1000 ° C, 1200 ° C, 1400 ° C, 1600 ° C, 1800 ° C

Model: MF4.5, MF12, MF16, MF27, MF30, MF45, MF96, MF200

Power supply: AC220V /50HZ/60HZ or AC380V /50HZ/60HZ or AC110V /50HZ/60HZ

Maximum operating temperature: 1000 ° C, 1200 ° C, 1400 ° C, 1600 ° C, 1800 ° C

Temperature control range: 50 to 1000 degrees, 80 to 1200 degrees, 80 to 1400 degrees, 80 to 1600 degrees, 80 to 1800 degrees

Temperature measuring element: K-type nickel-chromium thermocouple, S-type platinum-rhodium thermocouple, B-type tungsten-rhodium thermocouple

Heating component mounting position: sides or sides and bottom)

Temperature control accuracy: ±1 degree (integrated circuit control, very low overshoot)

Small benchtop high temperature furnace temperature uniformity: ±1 degree (depending on the size of the furnace, large furnaces can be controlled by multiple points to achieve better furnace temperature uniformity)

Heating rate: The heating rate can be adjusted freely. The adjustment range is: the fastest heating rate is 50 degrees/min, and the slowest heating rate is 1 degree per hour (1 degree/h).

Heating element: high temperature alloy resistance wire (including molybdenum, surface temperature of the wire can reach 1400 degrees) or silicon carbon rod or silicon molybdenum rod as heating element. U-shaped equal-diameter silicon carbon rod, silicon carbon rod is a non-metal high-temperature electric heating element made of high-purity a-SiC as the main raw material. It has fast heating, high thermal efficiency, long service life, low deformation under high temperature, easy installation and maintenance. The temperature can reach 1500 degrees.

Laboratory high temperature furnace body: The furnace body is processed by CNC machine tool. It is made by polishing, grinding, pickling, phosphating, spraying plastic powder, high temperature baking, etc. It has two colors, the appearance is novel and beautiful, and it has anti-oxidation, acid and alkali resistance. Corrosion, high temperature resistance, easy cleaning, etc.

Small high temperature furnace structure: The electric furnace body adopts the international advanced air-cooled double-layer furnace structure. The effective air-cooled guide baffle circulates the whole cold air of the furnace shell, and finally cools the conductive piece of the heating element and then discharges the furnace body, avoiding the conduction of the heating element. High temperature oxidation of the sheet; guarantees a good working environment.

Opening method of the furnace door: the opening method of the furnace door is left and right opening, or the side is opened 180 degrees in the axial direction, and the furnace door can be rotated 360 degrees to avoid the inner wall of the furnace door being baked to the arm when the high temperature is taken; the locking of the furnace door is located under the furnace door The stainless steel spring lock can effectively lock, and the elasticity of the spring absorbs the expansion phenomenon of the refractory material, ensuring the free expansion and contraction of the refractory material by thermal expansion and contraction and effective sealing.

Refractory material: The furnace lining is made of vacuum-formed high-purity alumina polylight material. The light-weight hollow-balloon alumina plate is used for picking and placing materials (burning mouth and furnace bottom). The use temperature is high, the heat storage is small, and the heat is resistant. Quenching, no cracking, no slag, good insulation performance, saving more than 60% of electricity compared with old electric furnace.

Insulation material: Two or three layers of insulation, including aluminum silicate fiberboard, alumina fiberboard, alumina (polycrystalline) fiberboard.

Laboratory high temperature furnace shell temperature: long-term use without stopping the furnace, the shell temperature is less than 60 degrees.

Protection: The integrated module control unit has accurate control precision, and has designed dual-loop control and dual-loop protection. It has overshoot, overshoot, undershoot, segmentation, phase loss, overpressure, overcurrent, over temperature, Current feedback, soft start, etc.

Control: Closed-loop technology thyristor module trigger control, phase shift trigger control or zero-crossing trigger mode, output voltage, current or power continuously adjustable, with constant voltage, constant current or constant power; current loop is inner loop, The voltage loop is an outer loop. When the sudden load or load current exceeds the current limit value, the output current of the regulator is limited within the rated current range to ensure the normal operation of the output and the voltage regulator. At the same time, the voltage loop is also involved in the adjustment. The output current of the pressure device is limited to the rated current range, and the output current and voltage are kept constant under the premise of sufficient adjustment margin; thus reaching the protection heating element to avoid the impact of excessive current and voltage, and achieving safe and reliable control effect. And control accuracy.

Display parameters temperature, temperature segment number, segment time, remaining time, output power percentage, voltage, current, etc.

Button: The Schneider button has a service life of more than 100,000 times and has an LED indicator.

Temperature curve setting: using intelligent temperature controller, standard PID, artificial intelligence adjustment APID or MPT and other adjustment methods, with self-tuning, self-learning function, no overshoot and no undershoot excellent control characteristics, with 30 or The 50-segment program control function can realize the rising and falling temperature control of any slope, and has programmable/operable commands such as jump (loop), operation, pause and stop, and allows the program to be modified at any time during the control operation of the program; Artificial intelligence adjustment algorithm for curve fitting function, which can obtain smooth and smooth curve control effect.

Multiple curve input: 30 segments (50 segments can be customized) Program control function, you can input settings: one curve is 30 (50) segments, two curves 14 (28) segments / bars, three curves 9 (15) segments / Bar, five curves 5 (9) segment / bar; can input multiple curves at the same time, can be called at will.

Communication interface: The electric furnace can be equipped with RS485 communication interface, which can control the start, pause, stop, temperature rise curve setting, temperature rise curve reading, parameter setting, etc. of the electric furnace by computer. It has high reliability and easy to grasp, and the display content on the computer screen. Rich, display measured value, set value, output value, segment time, segment number, temperature rise curve, power percentage curve, can be stored by computer, temperature rise curve, stored temperature rise curve can be arbitrarily called, modify the given value and common parameters, history Curves and historical report recording intervals can be filtered (1s-1h) for long-term storage.

Accessories: two sets of heating originals, two sets of rods, one piece of furnace door insulation (equipped with electric furnace above 1200 degrees), one pair of tongs, one pair of high temperature gloves.

Warranty scope and duration: The electric small high temperature furnace is guaranteed for one year free of charge, and the heating element is not guaranteed (free replacement for natural damage within three months).

Customer optional:

The crucible, saggar, corundum furnace pad / silicon carbide pad

Computer control software and hardware

Touch screen control temperature controller

Increase the exhaust port

Consumables: heating components

Increase the observation port

Note: For the two does not affect the service life of the electric furnace, we recommend a maximum heating rate and cooling rate of 10-20 ° C / min, (heating too fast heating element life will be shortened)

This box small high temperature furnace does not use a vacuum sealing structure, so it is not allowed to pass flammable and explosive gases.

After using the box furnace for a period of time, there will be tiny cracks in the furnace. This is normal and will not affect the use. It can also be repaired with alumina coating.

It is not recommended to use corrosive gas. If you want to pass a strong corrosive gas such as S, Na, etc., please inform us in advance, we will special treatment of the furnace.

Do not allow high temperature solution to leak to the bottom of the furnace. Avoid using a pad or alumina powder.

The instrument should be placed in a place where air is ventilated and not wet.