Large Gear Shaft
Large Gear Shaft，High precision Forging Spur Gear Shaft，step shaft,main shaft,wind turbine shaft
Sophia heavy machinery has been succeeding in manufacturing of large nonstandard machinery& mining spare parts according to drawings over 25years.Sophia shaft products refer to main shaft,drive shaft,support roller shaft,rotor shaft,spline shaft,gear shaft,roller shaft,propeller shaft,passive shaft,wind power shaft,and so on.
forged+ heat treatment+ rough machining+finish machining
Large Gear Shaft Main specification
Material:Alloy steel ,Carbon steel,or according to request.
Material Standard:ASTM,ISO, BS, API, EN,ASME,DIN,JIS,
Heat treatment:Annealing, Normalizing, Quenching & Tempering, Surface hardening
Gear shaft length:Max.5000mm
Arrangement of Heat Treatment Processes
Normalizing treatment is usually arranged first after forging of axle blank to eliminate internal stress in forging, refine grain size and improve cutting performance during machining.Heat treatment processes should be arranged to ensure the mechanical properties and processing accuracy requirements of gear shafts, and improve the workpiece processing performance In the whole process of axle After rough processing, conditioning heating treatment is arranged. In the rough processing stage, after rough turning, drilling and other processes, most of the processing allowance of gear shaft is removed. The cutting force and heat are very large in rough machining process. Under the action of force and heat, the axle produces great internal stress. The internal stress can be eliminated by conditioning treatment instead of aging treatment. At the same time, the required toughness can be obtained.
All the surfaces except the important ones have reached the design size after semi-processing. There is only finishing allowance on the important surfaces. At this time, local quenching treatment is arranged on the teeth to meet the hardness requirements of the design and ensure the wear resistance of these surfaces. The subsequent finishing process can eliminate quenching deformation.
SF heavy machinery company products :gears,shafts,pulleys,rollers,sprockets,couplings,wheels,housings ,frames, molds, High precision Forging Spur Gear Shaft,wear resistant parts and structural components,pinions.etc.
1).Chemical Compositions Test
2).Mechanical Properties Test｛Yield Strength,Tensile Strength,Reduction of Area Elongation, Hardness ,Impact Value.｝
3).( PT, RT,UT, MT,)Non Destructive Test
5)according to request.
please inform us in case of any inquiry.thanks!