H-type wheel paying off the steel wire (petal basket type) ->feeding device->tension apparatus->hot water cleaning groove->non oxidation electric heating furnace(or gas fired)->oil-quenching groove ->annealing oven->thermal insulating box->water cooling ->steel wire moving to oil groove -> H-type wheel taking up the steel wire (inverted type)
 Electric heating tube type muffle furnace
　　For requirements of users, we have developed the Muffle furnace of electric heating tube type.（heating component is applied in silicium carbide）
high stability and definition of keeping temperature
　　Uniformly heating at tube of furnace inside
　　Long lifetime of heating parts
　　Tube and heating component is easily replaced.
　　Compound oven wall and fine efficient in preserving heat is adopted.
　　Appling fuzzy control technology of stepless and continuous adjustment of the power of every section, the precision of controlling temperature is at scope of ±1 °C.
    Tube type muffle furnace of fuel gas heating
　　Compared with electric heating, the fuel gas heating muffle furnace will greatly reduce the cost of energy sources.
　　Air-fuel ratio may be exactly controlled. The ideal surrounding of inner furnace will be brought. Less wire will be oxidized.
　　 Excellent features:
　　Compared with electric heating, fuel gas heating furnace may cost fewer energy sources.
　　Suitable for huge furnace
　　High convectional ability around the tube
　　 By setting up the air-fuel ratio and displaying the real time control system, the ratio will be exactly controlled at any season and any time. The ideal surrounding of inner furnace will be brought. Less wire will be oxidized.