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1. Brief Introduction of Box Resistance Furnace:
RX3 series small box type electric furnace is standard
energy-saving batch type furnace,using the following heat treatment
processes: quenching, tempering, annealing and normalizing heat
treatment,etc.
The box type tempering resistence furnace mainly consists of fixed
heating chamber and the electrical control system. The furnace body
is made up of furnace shell, furnace linings, heating element,
furnace door, hoisting appliance and electrical control system.
2. Box Type Furnace Application field:
Mainly used for high chromium, high manganese steel castings,
ductile iron, roll, steel ball, crusher hammers, wearing plate,
flange and various mechanical parts. Can also suitable formetallic
material heat treatment in various colleges, universities and
research institutes.
3. Advantages of Box Resistance Furnace :
1. Low heat conduction and heat capacity;
2. Excellent thermal stability and thermal insulation;
3. Good heat preservation effect and temperature uniformity.
4. Main technical parameters of RX3 series:
Model | RX3 -15 | RX3 -30 | RX3 -45 | RX3 -60 | RX3 -75 | |
Power | 15kw | 30kw | 45kw | 60kw | 75kw | |
Voltage | three-phase 380V | |||||
Highest working temperature | 950℃ | |||||
Frequency | 50HZ | |||||
Furnace dimension | length | 650mm | 950mm | 1200mm | 1500mm | 1800mm |
width | 300mm | 450mm | 600mm | 750mm | 900mm | |
depth | 250mm | 350mm | 400mm | 450mm | 550mm | |
No-load heating up time | ≤2.5h | ≤3.0h | ≤3.5h | |||
Max loading capacity | 80kg | 200kg | 400kg | 700kg | 1200kg | |
Gross dimension | length | 1450mm | 1920mm | 2220mm | 2690mm | 3030mm |
width | 1300mm | 1620mm | 1930mm | 2180mm | 2350mm | |
depth | 1790mm | 2140mm | 2190mm | 2240mm | 2440mm | |
Weight | 1.1t | 2.0t | 2.5t | 4.5t | 5.2t |
5. Box furnace working principle:
After the thermocouple converts the furnace temperature into a
voltage signal, it is added to the microcomputer temperature
control regulator. The regulator compares this signal with the
programmed setting and outputs an adjustable signal. The adjustable
signal is used to control the trigger, and then there is a trigger
to trigger the voltage regulator to achieve the purpose of
adjusting the voltage and temperature of the electric furnace.
6. Safe operation tips:
1. Remove the iron filings in the furnace and clean the bottom
plate of the furnace to prevent the iron filings from falling on
the resistance wire and causing short-circuit damage.
2. The workpieces entering the box furnace should not exceed the
maximum load of the furnace bottom plate. When loading and
unloading the workpieces, it should be ensured that the power
supply is disconnected.
3. Wang Yi checks the installation position of the thermocouple.
After the thermocouple is inserted into the furnace, it should be
ensured that it does not touch the workpiece.
4. Determine a reasonable process range according to the drawing
requirements of the workpiece. The temperature rises on time to
ensure the operation of the furnace, and the temperature of the
instrument is often checked and calibrated to prevent misoperation.
5. In order to ensure the furnace temperature, the furnace door of
the box-type furnace cannot be opened casually, and the situation
in the furnace should be observed from the furnace door hole.
6. The coolant should be placed in a nearby convenient location to
reduce the cooling of the workpiece after it is released.
7. When the furnace is released, the working position should be
correct, and the clamping should be stable to prevent the hot
workpiece from harming the human body.
8. After the box furnace is overhauled, it must be baked according
to the regulations, and check whether the furnace hall and top
insulation powder are filled, and whether the grounding is fastened
to the furnace shell.