Cold extrusion process for spline gear of track brake

The invention relates to the technical field of spline gears, in particular to a cold extrusion process for a spline gear of a rail brake, which comprises the following steps: step 1, blank preparation: selecting a 20CrMnTi alloy steel bar, and sawing the 20CrMnTi alloy steel bar into a blank throug...

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Bibliographische Detailangaben
Hauptverfasser:	XIE HUI, XIE SHIBAO, WANG YUANYANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING CLEANING IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBINED OPERATIONS DIFFUSION TREATMENT OF METALLIC MATERIAL GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS OTHER WORKING OF METAL PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL PUNCHING METAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING UNIVERSAL MACHINE TOOLS
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