Composite manufacturing method of high-speed train brake disc

• Main Authors: CAO ZHENFEI, QI HAIBO, WANG YUQIAO, ZHANG HUA, HAN RIHONG, REN DELIANG, XING ZHENGUO
• Format: Patent
• Language: Chinese; English
• Published: 06.04.2018
• Subjects: ALLOYS; BLASTING; BRAKES; CASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLUTCHES; 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; COUPLINGS FOR TRANSMITTING ROTATION; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINEERING ELEMENTS AND UNITS; FERROUS OR NON-FERROUS ALLOYS; FOUNDRY MOULDING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THERMAL INSULATION IN GENERAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WEAPONS

The invention relates to a composite manufacturing method of a high-speed train brake disc, and belongs to the technical field of train manufacturing. The composite manufacturing method comprises thesteps that firstly an iron-base alloy is utilized and cast to form a brake disc substrate, the brake disc substrate comprises two disc bodies fixedly connected through a vent hole stand column, the brake disc substrate conducts sand blasting treatment so that residual stress can be relieved, then zoning and stratified sedimentation of alloy powder are conducted on the working end faces of the discbodies by utilizing a laser cladding technology, the cladding temperature is controlled by utilizing a water-cooling system in the sedimentation process, surface evenness treatment is conducted aftersedimentation of each cladding layer is completed, sedimentation of a next one cladding layer is conducted, a finished brake disc is obtained after sedimentation of all the layers is completed, and amechanical property and a w