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bright annealing Furnace with protective atmosphere Annealing oven with protective atmosphere

Bright annealing oven and furnace TH03

Introduction of annealing furnace

The Mesh belt bright annealing Furnace with protective atmosphere is mainly used for nickel-based alloy and austenitic stainless steel tubes, after annealing, the surface is uniformly bright without oxidation and oxidative stain.

Note: Before annealing, the inner and outer surfaces of the tubes of following materials must be cleaned by degreasing, and dried without any oxide. Then you can put the tubes into the annealing furnace.

Heat treatment steel grades: Ni-based alloys tube, 301 304 304L 316 316L 321
Heating element length: 0.6m - 8m

Components of annealing furnace

The annealing furnace is mainly consists of oven body, heat-resistant steel muffle, water cooling device, transporting device, electric control cabinet, ammonia decomposition and purification devices,gas distribution device, adjusting device, system, safety devices and other components.

Main technical parameters of annealing furnace:

Item Unit NGL-90-11Q Remark
1 Power KW 90-120 Adjustable (including preheating zone)
2 Rated voltage V 380
3 Working temp. °C 700~1080 Continuously adjustable, controllable
4 Muffle cavity size mm 4600*320*150 L*W*H
5 Oven size mm 18500*1860*1910 L*W*H
6 Maximum height of oven mouth for feeding workpiece mm 120
7 Heating zones 4 zones (Including preheating zone)
8 Width of mesh belt mm 300 314*300*39000mm
9 Speed of mesh belt mm/min 50~500 online speed display
10 Heating element Heating wire
11 Temperature uniformity of muffle section °C ±5
12 Temperature meter accuracy ±1
13 Cooling water consumption m3/h 0.1
14 Furnace atmosphere Ammonia decomposition protective atmosphere 75%H2+25%N2
15 Gas production of ammonia decomposition m3/h 30
16 Operation tem. of ammonia decomposition °C 800-850
17 Heating power of ammonia decomposition KW 36
18 Original gas NH3(Ammonia First Grade)
19 Residual of ammonia gas ppm ≤ 4
20 Max. consumption of ammonia kg/h ≤ 12
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