Вакуумная газовая проволочная печь для яркого отжига RJ-900 *

The pit type gas fired vacuum wire annealing furnace is mainly used for bright annealing (recrystallization) treatment of metals. During working status, the furnace is sucked into a vacuum environment in a cold state and then injected with 99.99% nitrogen. Heating the metals and make heat preservation. When the furnace temperature fell to 150-200℃. The metals can be craned out of the furnace muffle. In this process, the treated metals will keep the original color.

wire annealing furnace wire annealing furnacewire annealing furnace

The pit type gas fired annealing furnace is mainly comprised of furnace body, combustion system, fume discharging system, sealing system and self-control system.

Furnace Body: Muffle tank effective size: φ900×1800mm( Diameter×Height );
The furance shell welded by 4mm A3 steel plate. The bearing positon of the furnace bottom adopts 12# channel to make well type welding. The furnace lining adpots 300mm thick compression fiber block. Keep the compression ratio above 30% so that the high temperature sealing effect at this position can be ensured.

Muffle Tank: The muffle tank is made of 321 stainless steel, with thickness of 12mm. The flange material is made of 35mm carbon steel plate. There is a high temperature silicon rubber seal and water cooling jacket on the flange. The sealing effect can be achieved during working. The muffle tank cover adopts 30mm A3 steel plate. The heat preservation box of furnace cover is made of 321 stainless steel, and it adopts aluminum silicate fiber cotton to prevent heat loss. The furnace cover is fixed with the muffle tank through 8-10 manual compression screws on the cover.
The bottom of the muffle tank is equipped with a support stand, a casting parts of heat resistant steel material.
The tank cover is equipped with the gas inlet (with a manual valve), an exhaust hole (with a manual valve), a pressure gauge, an anti-explosion valve, and a lifting ring.

 Burning System: The burning system adopts 4 sets of SI080HB high speed automatic burner. The burner has the function of automatic ignition, automatic flame monitoring and automatic extinguishing protection.

Air Supply System: Each furnace has a set of centrifugal high pressure blower.

Gas pipeline system:  1 set (equipped with necessary components); 

Electrical control system: 1 set 

1 )  furnace body, 1 set;

2 )  burner, 4 sets;

3 )  muffle tank, 2 pieces (each equipped with 1 support stand); 

4 )  vacuum pump 2X-15, 1 set;

5 )  control box, 1 set;

4.6 thermal couple and compensation lead wire, 1 set;