Heat treatment Electric Anneal Furnace Model: RJ-55-9
Ф950 x 750mmSpecification: Power
55KWRated
temperature
950ºCVoltage
380V 3Phase
50HZ/60HZ Effective
size
Ф900x450mmLiner
size
Ф900x750mmMachine
size
Ф1800x1800mm Weight
2.5ton Control
system
PID control Temperature
area
1 area Temperature
accuracy
≤±1ºCTemperature
tolerance
≤±8ºCThe time for heating empty furnace
< 1.5
hoursMaterial : 0Cr25AL5Structure Introduction: The circle type
resistance furnace comprises a furnace body, furnace lining,
heating element device, furnace cover, sealing mechanism, electric
control system, automatic temperature control system and recording
system etc.The furnace system: the furnace wall with steel and
welded steel plate, steel plate thickness more than 3mm. Overall
strong, solid, durable, reliable, all welds are smooth, no pores,
slag inclusions, incomplete fusion and other defects. The furnace
body appearance straight, beautiful, no wrinkles or uneven
phenomenon. Outside the furnace body according to the related
standard brush two times, two times paint primer. Color selection
according to the industry standard, key parts with high temperature
paint.The lining: whole fiber lining structure, made of high
quality aluminum refractory fiber structure, the standard and
scientific and reasonable riveting firmware inserting method. Fiber
folding block mounted again before the pre compression (compression
density > 230Kg/m3), fixed on the shell by riveting firmware,
insulation is installed thickness more than 240mm. The structure
has a tensile strength of low heat conductivity and low heat
soluble chemical stability, excellent thermal stability, heat shock
resistance, excellent corrosion resistance and. Aluminum silicate
fiber high temperature of 1050 DEG C, anchor material selection 304
sheet metal forming. The lining body after completion of
production, spraying the surface with a layer of high temperature
curing agent, forming a layer of insulation wall lining, increase
strength and thermal radiation properties of a decent, and further
reduce livestock lining body heat loss, achieve rapid heating
effect, to maximize the thermal efficiency of the furnace.Heating
elements: in order to consider the uniformity of furnace
temperature, the heating elements of the well type resistance
furnace are arranged in the furnace around. The furnace is
surrounded by high resistance alloy resistance belt which is
produced by Shougang. The installation method of the electric
resistance belt adopts special ceramic screw fixation, the
structure form is convenient to install, the maintenance and
replacement are fast, and the furnace shell can not form a thermal
short circuit and cause the local overheating of the furnace shell.
The ceramic gasket is arranged between the fiber wall and the
resistance belt at the time of installation to ensure that the
fiber surface is not in direct contact with the resistance strip,
thereby increasing the heating effect of the resistance band.
Ceramic screws and washers are made of high aluminum material in
the sintering process, to ensure that the strength and service
life.The furnace cover: the furnace cover for 3mm carbon steel,
lining for the fiber structure, and the sealing of the furnace body
is sealed by sand.Control and record system: temperature control
with 1 control zone, using intelligent digital temperature
controller in Shanghai dragon company (TCW-32B), by setting the
reasonable parameters, can achieve optimal temperature control,
self-tuning function using the online, can calculate the best PID
parameters of the stove, reached the ideal temperature stability
the. The heating control high power circuit adopts the
bidirectional controllable silicon to adjust work, so as to change
the size of the output heating power, so as to realize the
temperature control. In the heating control circuit, the
temperature is over temperature alarm system. When the temperature
is over, the main circuit is cut off by the high power contactor in
the main circuit to ensure the safety of the workpiece and the
equipment in the furnace. At the same time give sound and light
alarm. Recording instrument using well-known manufacturers to
produce reliable performance paperless recorder. The electric
furnace is controlled by 1 zones, the temperature of the master and
the temperature of the recording. All of the silicon controlled
rectifier, AC contactor, fuse, relay, circuit breaker, switch,
switch, button operation, signal lights and other main controller
and display device with reliable operation, well-known domestic and
foreign manufacturers to produce products.Delivery time: 45days
after order confirm and 40% T.T receivedPayment terms: 40% T.T when
order confirm and 60
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