Qty.

1   set  

Inside   size

Inside size: 2200 x 1800 x 1800（depth * width *height）

1.    Technical Data

Power   supply

3N+PE  380V    50Hz

Design   temp.range

ambient   temp.～450℃

Temperature   uniformity (unload)

≤±4℃ (when 450℃, unloading)

Range of   temperature fluctuation

≤±1℃

Heating   power

120kW

Air   circulation system

Circulation   fan: 11kw*1 pcs; Fan diameter:700mm

Temperature   rise of external surface

≤   Room temperature+15℃, special place is different.

2.      Oven   body structure

Door   Type

Double   door, manual open, 4 sides with double seal

Oven   cover

Q235   cold-rolled steel plates subjected to rust-proofing treatment and painted   with self-drying acrylic acid paint.

Inside   structure

Using   SUS304 stainless steel, TIG welding with expansion seam, it can bear high   temperature without distortion.

With   copper plate100mmx   10mm, vertially installed.

Cover   support

Q235   U-beam, angle steel

Inside   support

Q235   angle steel, painted with W61 series high-temperature resistant paint.

Bottom

Q235   U-Beam with anti-rust treatment, painted with 851 anti-moisture paint

Insulation   material

High-grade   aluminum silicate cotton is used

Door   sealing material

It   is ceramic fiber rope and gasket. No need cooling water.

3.      Air   circulation system

Mode   of air circulation

Air   from bottom to up, forcing hot air circulation.

Air   outlet position

From   bottom of oven side

Air   output amount control

Using   double air baffle (with holes) to control air outlet amount. To ensure   temperature evenness.

Air   input amount control

At   oven ceiling, using baffle (with holes) to control, ensure temperature   evenness in oven.

Blower

Using   hot air blower, no need cooling water.

4.      Heating   System

Heating   elements

Adopted star-connection; U-shape heating element

Location   of heating element

It   is located on both sides of oven.

5.      Oven   body thermal insulation

Thickness   of insulation

160-200mm

Insulation   material

High-grade   aluminum silicate cotton is used. Temperature conducting coefficient is 0.048Kcal/mh℃.

6.      Electrical   system

Control   cabinet

An   independent control cabinet at side of oven. 

With   main-air-switch in cabinet; with time-relay.

Main   temp.control

Using   Xiamen Yuguang AI-518P program with PID digital displayer temperature   controller. With RCR computer communication joint, with K-type thermal   couple.

Over-temp.   alarm

Using   Xiamen Yuguang AI508 digital alarm, with K-type thermal couple.

K-type   thermal couple socket

With   6 piece of socket on control cabinet for thermal couple connection.

DC   power supply

With   SMER-WZY power supply, current is 2000A.

N₂   input control

N2   input is controlled by solenoid valve. Input time is controlled by   time-relay. With a LZB-4 flow meter.

Safety   protect

●   Electricity leak protection: to protect operator.

●   Over-temp.alarm: when oven inside temp. is abnormal, alarm rings and heating   is stopped automatically.

●   Motor and heating is inter-lock. First blowing, then heating. To avoid   heating element damaged.

Control   protection

●   Motor over-current protection, avoid motor damaged.

●   Heater over-current protection, avoid heater short-circuit.

● Temperature   over protection (heater will stop when temperature over).

●   Breaker, avoid main circuit over loading.

7.      Oven   accessories

N₂   input

Buyer   provide N₂ gas source.

With   2 input pipes (DN25mm). It is installed on top of annealing oven. One pipe   insert into air channel, close to blower fan. The other input to furnace.

On   the two sides-buttom of furnace, there is 50mm gas-ventilation holes. With   cover plate (adjustable).