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2. 发明授权

US5622753A Method of preparing and coating aluminum bore surfaces 失效
标题翻译：铝合金表面的制备和涂覆方法
公开(公告)号：US5622753A
公开(公告)日：1997-04-22
申请号：US630106
申请日：1996-04-08
申请人： Barry E. Shepley , Christopher K. Palazzolo , Robert E. DeJack , John E. Chancey , Deborah R. Pank
发明人： Barry E. Shepley , Christopher K. Palazzolo , Robert E. DeJack , John E. Chancey , Deborah R. Pank
IPC分类号： C23C4/02 , C23C4/16 , C23C4/10 , B05D7/22
CPC分类号： C23C4/02 , C23C4/16
摘要： A method of preparing and coating cylindrical bore surfaces of an aluminum workpiece that comprises (a) inserting and rotationally reciprocally moving a plurality of honing elements against the bore surface with a pressure of at least 30 psi to effect a pattern of spiral overlapping abrasions on said surface, each element being constituted of multifaceted, irregular-shaped, abrasive particles (i.e., diamond or SiC) having a particle size of 30-1300 micrometers. The particles, when in contact with the surface, plow micro-sized, non-smooth and irregularly spaced grooves in the aluminum workpiece resulting in spiral peaks and valleys along the direction of movement of the particles, whereupon repeated reciprocation and rotation of the elements (i.e. 50-200 sfm) thereagainst results in overlapping grooves and cross-abrading of the prior peaks and valleys accompanied by a molding and folding over of certain of the peaks and valleys to create irregular, micro-sized tears, folds, and undercuts; and (b) thermally depositing wear resistant metallic particles onto the abraded surface to form a cohesive coating, said deposited particles migrating into the non-smooth grooves and into the irregular tears, folds, and undercuts during thermal deposition to increase the mechanical bond strength of the coating to the workpiece surface.
摘要翻译：一种制备和涂覆铝工件的圆柱形孔表面的方法，其包括（a）以至少30psi的压力将多个珩磨元件插入并旋转地往复移动抵靠所述孔表面，以在所述第二表面上形成螺旋重叠擦伤图案表面，每个元件由具有30-1300微米的粒度的多面，不规则形状的磨料颗粒（即金刚石或SiC）构成。颗粒当与表面接触时，在铝工件中犁微尺寸的，非平滑的和不规则的间隔开的凹槽，导致沿着颗粒运动方向的螺旋形峰和谷，从而元件的反复往复运动和旋转即50-200 sfm），导致先前的峰谷重叠的沟槽和交叉研磨，伴随着某些峰和谷的模制和折叠，以产生不规则的微尺寸的撕裂，褶皱和底切; 和（b）将耐磨金属颗粒热沉积到磨损的表面上以形成粘合涂层，所述沉积的颗粒在热沉积期间迁移到非平滑的凹槽中并进入不规则的泪液，折叠和底切以提高机械粘合强度涂层到工件表面。

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