CE 8- Wire Electric Heat Treat Furnace Continuous Wire Anneaing 2 -
5MM Wire
8-wire Heat Treat / Treatment Furnace Continuous Wire Anneaing 2 -
5MM Wire
Continuous online steel wire annealing furnace is mainly composed
of furnace body, stainless steel pipe, heating
elements and fixing devices, electrical control system, and furnace
temperature automatic control system.
heat treatment furnace/heat treat furnace/ steel wire annealing
furnace
1. Technical parameter heat treatment furnace/heat treat furnace/ steel wire annealing
furnace
1.1 Effective Heating Length: 20m*8 wires; It has preheating
section, heating section and holding section. 1.2 Effective Cooling Length: 8m*8-wire; 1.3 Heating power: 200KW +5% (1-100% adjustable) 1.4 Temperature Control Zones: 6 Zones 1.5 Temperature Control Method: PID SCR Control Shanghai Guolong
temperature controller with over-temperature alarm； 1.6 Temperature Control Accuracy: ≤±1℃; 1.7 Furnace wall temperature: 45℃+Room Temperature; 1.8 Empty furnace power consumption: ≤18%; 1.9 Max working temperature: 1000℃; 1.10 Cooling water in cooling section: Recycling. For 24-hour work,
a cooling tower is recommended outside the workshop. 1.11 Furnace lining: furnace side and furnace roof adopt full fiber
structure; 1.12 Heating element: 0Cr21AL6Nb; 1.13 Product: φ2--5mm low carbon steel wire;
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2. Construction heat treatment furnace/heat treat furnace/ steel wire annealing
furnace
furnace body
2.1.1 Furnace shell:
The outer wall of the furnace welded with Q235 plate with the
thickness of 3 mm. It welded by 10 # section steel and 8 # section
steel. The furnace has the advantage of firm structure, reliable
and durable performance.
2.1.2 Furnace lining:
The steel wire annealing heat treat furnace lining is all-fiber
structure. It adopts high-quality high-temperature refractory
fibers, standard stainless steel round parts and scientific and
reasonable mounting method. The aluminum fibers are
pre-compressed into blocks (compression gravity: ≥230Kg/m3 ) and
then fixed to the furnace body by round stainless
steel parts. The installation thickness of the insulation material
is ≮350mm. The structure has low heat
conductivity, strong anti-shock capacity, and anti-erosion. The
aluminum silicate fiber resists a maximum
temperature of 1200℃. The material of round steel is 1Cr13 round
steel. The lining has the effect of rapid
heating and heat preservation.
The bottom is made of heavy refractory brick and mullite brick. The
expansion joints of refractory bricks are
retained in masonry to prevent the expansion damage of lining when
heated. Every 400 mm, a shaped brick
is used to fix stainless steel pipes (the wire mesh inside the
shaped brick prevents the cracking of the
shaped brick leading to the deformation of the stainless steel
pipes). The two sides of each shaped
brick are fixed with stainless steel splints.
2.1.3 Furnace body heating element:
The heat treatment furnace employs high-quality high-resistance
alloy material 0Cr21AL6Nb which is processed into
corrugated resistance bands. They are installed on the bottom of
the furnace body to ensure that they are
not damaged during processing. The furnace has 6 heating zones. The
arrangement of heating elements
corresponds to that of heating zones. An independent heating group
is arranged in each heating zone.
All lead-out rods are made of φ16 0Cr25AL5 material. The special
industrial chucks are used for
lead-out rods to ensure firm and reliable wiring.
2.1.4 Heating elements
The heating elements adopt high quality high temperature alloy belt
in order to meet long term
use at the temperature of 950 ℃. The furnace lining adopts aluminum
silicate refractory fiber.
The heat treatment furnace is equipped with 8 stainless steel tubes
for wires going through. The specification
of the tube is Ø32×3.5mm, 20.5meters length. The tube material is
310S(Cr25Ni20Si2)
which has the advantage of durability at high temperatures. Each
pipeline is equipped
with protective gas joint. The cooling groove at the pipe outlet is
provided with a sealing
connecting device. The inlet is equipped with guide device to
ensure that the wire runs
in a straight line in the pipeline. And the thermal expansion
device of the pipeline is also equipped in the furnace.
2.1.5 Cooling tank
The cooling tank is made of 5 mm thick iron plate by pressing and
welding, and the frame
is welded with 10# and 8# Q235 steel. There are 8 stianless steel
tubes sealed and welded
with heating tubes. The stainless steel tube material is 304
(1Cr18Ni9), and the size is
Ø32×3.5mm. The tank is equipped with inlet and outlet water to
ensure rapid cooling of
annealed parts. The effective cooling pipe length is 8.5 meters.
2.1.6 Ammonia decomposition device
The heat treatment furnace has ammonia decomposition and
purification device.
Using liquid ammonia as raw material, under the action of catalyst,
heating decomposition
to obtain hydrogen and nitrogen mixed gas containing 75% hydrogen
and 25% nitrogen.
2.1.7 Temperature control system
Temperature control: the furnace adopts Shanghai Guolong
intelligent temperature
controller to control the temperature which has self-tuning
function to calculate the
ideal PID parameter and achieve temperature stability. The
temperature controller
has the functions of over-temperature alarm and thermal couple
breakage protection.
The heating loop adopts the SCR and trigger control. The output
heating power can
be changed to achieve temperature control.
The over-temperature alarm system is sound and light alarm which
ensures the
safety of workpieces and equipment in furnace.
All main control devices, such as AC contactors, fast fuses,
intermediate relays,
stroke switches, operation switches, buttons, signal indicators,
and operation and
display devices are the brand of CHINT. The current and voltage
indicators are
sensitive, accurate, reliable and long service life.
Electrical control cabinet: The cabinet body adopts the control
cabinet
manufactured by professional manufacturers in accordance with
international
electrical standards. The size, structure and color of the cabinet
conform to the
standards commonly used at home and abroad. The installation,
wiring and
identification of the devices in the cabinet conform to the
relevant standards.
Copper core insulated wire is used to connect the control cabinet
to the main
circuit of the furnace body; special line number material is used
for all line
number markings, which can be printed regularly to avoid line
number falling
off; and line number markings are provided for every two meters
interval in
all underground ditches to facilitate inspection of each line
during maintenance.
3. Supply scope heat treatment furnace/heat treat furnace/ steel wire annealing
furnace
| No. | Item | Q’ty | Remark |
| 1 | Furnace body | 1 set | |
| 2 | Heating elements | 1 set | Resistance belt |
| 3 | Temperature control system | 1 set | |
| 4 | Temperature controller | 6 pcs | |
| 5 | Compensation lead wire | 200meter | |
| 6 | Thermal couple | 6 pcs | K type |
| 7 | Guide roller device | 24 sets | |
| 8 | Cooling tank | 1 set | |
Company Info: our company is a professional supplier of heat treat/
treatment furnaces such as
box type heat treatment furnace, bogie type heat treatment furnace,
pit type heat treat furnace,
carburizing heat treatment furnace, nitriding heat treat furnace,
salt bath heat treatment furnace,
steel wire annealing heat treat furnace, etc.
