60-wire Electric Heat Treat/ Treatment Furnace Continuous 1.6 mm Wire Anneaing​

Technical parameter heat treat furnace/heat treatment furnace

2. Construction of Heat Treat Furnace heat treatment furnace/ steel wire annealing furnace
Continuous 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.
furnace body
2.1.1 Furnace shell:
The outer wall of the furnace welded with Q235 plate with the thickness of 4 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 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 400mm,
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 1000 ℃. The furnace lining adopts aluminum silicate refractory fiber. The furnace is
equipped with 60 stainless steel tubes for wires going through. The specification of the tube is Ø32×4mm,
22.5meters 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 4mm 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 Ø32×3mm. The tank is
equipped with inlet and outlet water to ensure rapid cooling of annealed parts. The effective
cooling pipe length is 8 meters.
2.1.6 Ammonia decomposition device
The 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 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.

3. Supply scope of Heat Treatment Furnace

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.