Stainless steel based metal fiber porous material with high specific surface area and preparation method thereof

• Main Authors: LIU BIN, TANG BIAO, ZHOU RUI, TANG YONG, DING XINRUI
• Format: Patent
• Language: Chinese; English
• Published: 27.04.2011
• Subjects: 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; 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; WORKING METALLIC POWDER

The invention discloses a stainless steel based metal fiber porous material with high specific surface area and a preparation method thereof. The preparation method comprises the following steps of: firstly machining continuous stainless steel fiber on a stainless steel bar material by a large-blade inclination-angle multi-tooth cutting tool; after pretreatments including washing, deoiling and acid washing are carried out on a stainless steel fiber, plating the surface of the stainless steel bar material with a chemical copper plating method to obtain a copper plating layer with a structure of abundant surface copper micro-particles; and after the stainless steel fiber with plated copper is molded and preformed, placing the stainless steel fiber in a reducing atmosphere protective furnace to carry out the low-temperature solid-phase sintering for 30-90mins at 850-950 DEG C, and then cooling along the furnace to prepare the stainless steel based metal fiber porous material with the high specific surface area.