High-efficiency uniform metal copper-infiltrated composite material and preparation method thereof

• Main Authors: LIN BINGTAO, XIONG NING, GUO YINGLI, ZHANG BAOHONG, DU LIYE, LIU GUOHUI, TANG LIANGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2021
• Subjects: ALLOYS; CASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; 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; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

The invention provides a high-efficiency uniform metal copper-infiltrated composite material and a preparation method thereof. The method comprises the steps that commercially available metal powder is subjected to vacuum drying to obtain dried metal powder; the dried metal powder is subjected to vertical fluidized bed type smashing and grading treatment to obtain treated metal powder; the treated metal powder is subjected to press forming to obtain a metal compact; the metal compact is placed in a furnace to be sintered to obtain a metal sintered skeleton; and the metal sintered skeleton is subjected to copper infiltration treatment to obtain the metal copper-infiltrated composite material. The problems that in an existing preparation method of a metal copper-infiltrated composite material, on one hand, due to the fact that commercially available metal powder is distributed in a wide range and agglomerated, a prepared metal skeleton is poor in uniformity and consistency, and on the other hand, due to the fac