350169460536 (1)

 

Select top suppliers, sampling and testing of their raw materials in random to make sure thatrawmaterial meets national standards and mechanical properties meet product designreguirements,just like Tbm Cutter,CNC Parts and Cutting Rule.Descaling rough turning: according to the size of finished products, reserve enough sizemarginsUltrasound flaw detection: the forgings after rough turning are detected by ultrasoundwhether thereare any defects in the material: such as blowhole, slag inclusion, lamination and soon.Tempering treatment according to the national standard or the special requirements ofcustomers, thetempering treatment could improve the mechanical properties.Descaling rough turning: according to the size of finished products, reserve enough sizemarginsUltrasound flaw detection: the forgings after rough turning are detected by ultrasoundwhether thereare any defects in the material: such as blowhole, slag inclusion, lamination and soon.Tempering treatment according to the national standard or the special requirements ofcustomers, thetempering treatment could improve the mechanical properties.The raceway is quenched by medium frequency quenching process. The hardness ofquenchingarea reaches HRC55-62. and the effective depth is notless than 3 mm. Afterquenching, the racewayis tempered stably to eliminate quenching stress, reduce subsequentprocessing deformation andreduce the risk of raceway cracking.Detection of hardness, effective depth and crack in quenched area, especially initial position.Processing datum level, providing datum for subsequent processing of teeth, holes, etc.According to different kinds of tooth shape, processing methods such as shaping, hobbingandmiling can be selected. our Stamping & Cold Pier PartsThe accuracy level can meet 7-10 grades.lf higher accuracy.In order to meet the strength and service life of the teeth, High carbon steel strip will use high frequency quenching is carried outonthe tooth surface. root and top according to different requirements. The hardness canmeetHRC40-55 and the depth can meet 1.5mm. Tempering stabilization after quenching , thequenchingstress can be eliminated, the cracking risk of the quenched part can be reduced. andthe hardnessand crack detection can be carried out after quenching isneededgrinding can meet 4-6 grades.Control the chord length, wall thickness, aperture and other items in the machining processandcorrect them in time. Inspection for threads with high accuracy requirements.