SX2-4-10ATechnical parameters of box type resistance furnace

Temperature range: room temperature~ 1000

Display accuracy:±1℃

Furnace size:300*200*120

Whole machine power:4KW

electricity press : two hundred and twenty

Heating material: high-quality iron chromium aluminum

one.SX2-4-10ABox type resistance furnaceuse Way

This series of box type electric furnaces is also known as laboratory electric furnaces or Maofu furnaces. Used in conjunction with corresponding hotspots and temperature control consoles, it can automatically measure and control temperature within the rated temperature range. Suitable for laboratories in colleges, research and environmental protection units, for analysis, measurement, metallographic research, or for high-temperature combustion in industrial and mining enterprises, as well as for normalizing, annealing, and quenching metal workpieces in air.

two.SX2-4-10ABox type resistance furnacestructure

The furnace body and supporting control console box are made of angle steel and steel plates. The furnace adopts silicon carbide sintering forming or high alumina brick masonry

Cheng. Build lightweight bricks and fill insulation materials between the furnace and the furnace body.1200Heating elements within ℃ are distributed around the furnace,1300The heating elements of electric furnaces above ℃ are located in the furnace chamber. The supporting console is composed of temperature indicators, ammeters, voltmeters, fuses, and thyristors.

1.Place the electric furnace on a flat indoor floor or a suitable workbench (wooden frames are prohibited and kept away from other areas)

Something that is hot and flammable. The installation of silicon carbon rods (silicon molybdenum rods) must have good contact.

2.The temperature measuring element thermocouple is connected to the control console according to the markings, and the connecting wire should be a compensating wire (or insulated copper core wire),

When connecting, it should be noted that the positive and negative poles cannot be reversed.

3.The console is connected according to its backend wiring label.

4.1000For electric furnaces within ℃, after turning on the power switch on the control panel, turn on the "Set Test" switch on the digital instrument panel

Pull to the "set" position, adjust the desired temperature value, and then turn the "set actual measurement" switch to the "actual measurement" position. The digital display shows the actual temperature value inside the furnace and the green light on the digital meter indicates that the furnace has been heated. When the temperature inside the furnace reaches the set value, the red light on the digital meter will turn on, and the furnace will be powered off to cool down. Afterwards, the red and green indicator lights will jump between intervals. To achieve automatic temperature control.

5.1300After turning on the power switch of the control panel for the ℃ electric furnace, turn the "Set Actual Measurement" switch on the digital instrument to the "Set" position, adjust the desired temperature value, and then turn the "Set Actual Measurement" switch to the "Actual Measurement" position. The actual temperature value inside the furnace will be displayed digitally, and the green light of the digital meter will light up. Then turn the "Current Adjustment" knob clockwise, and the readings of the voltmeter and ammeter will rise at the same time. Generally, the product of the modulated voltage reading and current reading is equal to the rated power. (If the furnace temperature rises too quickly at the beginning, the power can be adjusted appropriately). At this point, the furnace temperature begins to heat up. When the temperature inside the furnace reaches the set value, the red light on the digital meter will light up, indicating that the furnace has been powered off for cooling. In the future, the gap between the red and green lights will jump, achieving the purpose of automatic constant temperature control.

6.For safe operation, the furnace body must be effectively grounded, and the power supply must be cut off before taking or placing objects.

fiveSX2-4-10ABox type resistance furnace.Maintenance and Precautions

1.When the electric furnace is used again or after a long period of disuse, it must be dried in an oven. Drying time:

950℃ electric furnace: room temperature—200℃ four hours 200℃--600℃ four hours

1300℃ electric furnace: room temperature—200℃ an hour 200℃--500℃ Two hours

room temperature—800℃ Three hours 800℃--1200℃ Two hours

2When using electric furnaces and control consoles, the rated power must not be exceeded (the power can be calculated from the readings of ammeters and voltmeters). The furnace temperature shall not exceed the limit temperature. Hot workpieces with high moisture content should be pre dried. When the electric furnace has not yet cooled down, it is forbidden to pour various liquids into the furnace.

3Regularly check whether the connections of various terminals on the electric furnace and control console are good. Regularly remove oxides from the furnace.

4The electric furnace and control console must be maintained at a relative humidity not exceeding85%Working in places without conductive dust or explosive corrosive gases in Egypt.

5The working environment of the console is limited to0~50℃, it is strictly prohibited to use the control console on the furnace body.

6、1300The heating element of an electric furnace above ℃ will gradually age after a period of use, and can still be used by adjusting a solid potentiometer on the voltage regulating circuit board.

VISX2-4-10ABox type resistance furnacemaintenance

1If small cracks are found in the furnace lining and furnace during use that do not affect the normal use of the electric furnace, there is no need to repair them. If the damage is severe and cannot be used, some of the furnace lining bricks and insulation materials can be removed to replace the damaged furnace or furnace lining. When rebuilding, attention should be paid to ensuring that the lining bricks are tightly aligned. Lightweight masonry joints shall not exceed1.5Millimeters, using20~30%Fine ground refractory clay powder is used as joint filling material. The particle size for building diatomaceous earth bricks shall not exceed0.5Fill the brick joints with millimeter sized diatomaceous earth powder. After the repair is completed, dry it in an oven.

2When repairing the furnace, the heating element should be removed and unloaded gently. The silicon carbide rod should be inserted into the hole, and the exposed parts at both ends should be equal. The wiring clamp must be fastened on the broken end sprayed with metal powder. If the wiring clamp is severely oxidized, it should be replaced with a new one to prevent loose contact and poor thermal short circuit loss.

7SX2-4-10ABox type resistance furnaceAttention: It is strictly prohibited to use the buzzer electric furnace with colleagues. The product is covered by a six-month warranty from the date of purchase, and vulnerable components are not covered by the warranty.

eightSX2-4-10ABox type resistance furnaceSchematic diagram of voltage regulation and temperature control wiring