Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surface-enhanced ceramic artificial joint convex spherical friction part and preparation method thereof
The invention discloses a surface-enhanced ceramic artificial joint convex spherical friction part and a preparation method thereof, and relates to the technical field of artificial joints. The surface-enhanced ceramic artificial joint convex spherical friction part comprises a gradient permeation layer with the depth of 0-2500 microns and containing components same as or different from a base body, through surface prestress self-enhancement and/or surface component gradient composite enhancement, the surface compressive pre-stress of-50 MPa or above exists, and the compressive pre-stress or/and the component content are/is gradually decreased in a gradient mode from the surface to the inside in the radial direction. The preparation method comprises the steps of S1, preparation of surface gradient seeping slurry and modified granulation powder, S2, green body forming, S3, biscuit pre-sintering, S4, ceramic ball pre-sintering biscuit processing, S5, ceramic ball pre-sintering biscuit surface seeping, S6, ceramic ball blank densification sintering, S7, ceramic ball blank surface coarse grinding, fine grinding and polishing, and S8, surface enhanced ceramic artificial joint convex ball type friction part machining. S9, finally polishing the surface of the surface-enhanced ceramic artificial joint convex spherical friction part; and S10, inspecting, marking and packaging.
本发明公开了一种表面增强陶瓷人工关节凸球型摩擦部件及其制备方法，涉及人工关节技术领域。所述表面增强陶瓷人工关节凸球型摩擦部件包括深度0‑2500μm含与基体同种或异种组分的梯度渗透层，经表面预应力自增强和/或表面组分梯度复合增强，其存在‑50MPa以上的表面预压应力，并沿径向由表及里预压应力或/和组分含量梯度递减。所述的制备方法为：S1.表面梯度渗浆浆料和改性造粒粉的制备、S2.生坯成型、S3.素坯预烧、S4.陶瓷球预烧素坯加工、S5.陶瓷球预烧素坯表面渗浆、S6.陶瓷球坯致密化烧结、S7.陶瓷球坯表面粗磨、精研、抛光、S8.表面增强陶瓷人工关节凸球型摩擦部件机加工、S9.表面增强陶瓷人工关节凸球型摩擦部件表面最终抛光、S10、检验、打标、包装。
Surface-enhanced ceramic artificial joint convex spherical friction part and preparation method thereof
The invention discloses a surface-enhanced ceramic artificial joint convex spherical friction part and a preparation method thereof, and relates to the technical field of artificial joints. The surface-enhanced ceramic artificial joint convex spherical friction part comprises a gradient permeation layer with the depth of 0-2500 microns and containing components same as or different from a base body, through surface prestress self-enhancement and/or surface component gradient composite enhancement, the surface compressive pre-stress of-50 MPa or above exists, and the compressive pre-stress or/and the component content are/is gradually decreased in a gradient mode from the surface to the inside in the radial direction. The preparation method comprises the steps of S1, preparation of surface gradient seeping slurry and modified granulation powder, S2, green body forming, S3, biscuit pre-sintering, S4, ceramic ball pre-sintering biscuit processing, S5, ceramic ball pre-sintering biscuit surface seeping, S6, ceramic ball blank densification sintering, S7, ceramic ball blank surface coarse grinding, fine grinding and polishing, and S8, surface enhanced ceramic artificial joint convex ball type friction part machining. S9, finally polishing the surface of the surface-enhanced ceramic artificial joint convex spherical friction part; and S10, inspecting, marking and packaging.
本发明公开了一种表面增强陶瓷人工关节凸球型摩擦部件及其制备方法，涉及人工关节技术领域。所述表面增强陶瓷人工关节凸球型摩擦部件包括深度0‑2500μm含与基体同种或异种组分的梯度渗透层，经表面预应力自增强和/或表面组分梯度复合增强，其存在‑50MPa以上的表面预压应力，并沿径向由表及里预压应力或/和组分含量梯度递减。所述的制备方法为：S1.表面梯度渗浆浆料和改性造粒粉的制备、S2.生坯成型、S3.素坯预烧、S4.陶瓷球预烧素坯加工、S5.陶瓷球预烧素坯表面渗浆、S6.陶瓷球坯致密化烧结、S7.陶瓷球坯表面粗磨、精研、抛光、S8.表面增强陶瓷人工关节凸球型摩擦部件机加工、S9.表面增强陶瓷人工关节凸球型摩擦部件表面最终抛光、S10、检验、打标、包装。
Surface-enhanced ceramic artificial joint convex spherical friction part and preparation method thereof
一种表面增强陶瓷人工关节凸球型摩擦部件及其制备方法
LI YADONG (Autor:in) / LI YAJUN (Autor:in) / ZHU YANGGUANG (Autor:in) / YANG ZHIJIE (Autor:in)
29.04.2022
Patent
Elektronische Ressource
Chinesisch
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