摘要:
There is described a grinding wheel (1), particularly for grinding operations carried out on sheets of glass (2), ceramic material or similar materials, comprising a disc-shaped support with abrasive material arranged on the circumferential profile of the support, and an opposing central hole (3) for attachment to a drive shaft (4) of the grinding wheel. The disc-shaped support comprises a pair of opposed disc-shaped grinding wheel bodies (5, 6) coupled in a facing position so as to define together the abrasive grinding surface (5c, 6c) along the circumferential profile, and each of the disc-shaped bodies (5, 6) has a predetermined resilience such that the disc-shaped bodies (5, 6) can be flexed away from each other in the zone of contact with the component being ground, for the purpose of consequently applying pressure to the component in the grinding operation.
摘要:
To provide a nonwoven fabric polishing roll that can reduce the occurrence of polishing defects and carry out uniform polishing. A nonwoven fabric polishing roll having a through hole in to which a rotation shaft of a polishing machine is inserted, and the internal surface of the through hole engages with the rotation shaft so that the torque of the rotation shaft is transmitted, the nonwoven fabric polishing roll comprising: a plurality of circular nonwoven fabrics having an aperture in the center thereof that forms the through hole; and a plurality of circular plates having an aperture in the center thereof that forms the through hole, and having an outer diameter that is smaller than the outer diameter of the circular nonwoven fabric, wherein the plurality of circular nonwoven fabric and the plurality of the circular plates are stacked so that one or two or more of the circular nonwoven fabrics are sandwiched on their aperture side by the circular plates, and bonded together with adhesive while compressed in the stacking direction, and the compression deformation ratio of the circular plates with respect to pressure forces from a direction normal to the stacking direction is smaller than that of the circular nonwoven fabric.
摘要:
A system and method for chemical mechanical polishing, and for the preparation of wafer surfaces (202') is provided. The chemical mechanical polishing system (250) includes a carrier (204) to hold and rotate a wafer (202). The wafer (202) has a surface area (202') and is held by the carrier (204) so that the surface area of the wafer (202) to be processed is exposed. The system further includes a roller (210) that has a process surface (220). The roller (210) is configured to rotate about an axis (215), and the rotating process surface (220) of the roller (210) is applied with force ((214) against the rotating wafer surface (202') defining a contact region (212a) on the wafer (202). The area of the contact region (212a) is less than the surface area (202') of the wafer (202). The contact region (212a) is moved between a first region of the wafer and a second region during the processing of the wafer (202), and the force (214) and linear velocity are manipulated to control a rate of removal.
摘要:
A pneumatic wheel sander comprising a wheel (1) having an annular well (2) between two spaced apart radial flanges (3) to give a substantially H-shaped cross-section. A tyre (9) carrying two annular beads (10) configured to fit into two recesses (11) in the flanges (3) and held therein by retaining members (13) is maintained under air pressure via an air inlet valve (7) in one flange (3) and an air passage (8), with a fitting (5) for adaption to a driving source, being located in the other flange (3).
摘要:
A self-contained fibrous buffing article. The self-contained fibrous buffing article includes at least one layer of a spunlaced nonwoven fabric having a hardened adherent coating comprising a thermosetting binder, abrasive particles, and a lubricant.
摘要:
Um eine Werkzeugaufnahmevorrichtung (106) für eine handgehaltene Werkzeugmaschine (100) zur Aufnahme eines Werkzeugs (104) zu schaffen, mittels welcher ein einfacher Werkzeugwechsel durchführbar ist, wird vorgeschlagen, dass die Werkzeugaufnahmevorrichtung (106) eine Welle (110), auf welche das Werkzeug (104) aufsteckbar oder aufgesteckt ist, eine Fixierungsvorrichtung (116) zur Fixierung der Welle (110) an der handgehaltenen Werkzeugmaschine (100) und eine Sicherungsvorrichtung (108) zum Sichern des Werkzeugs (104) in einer Arbeitsposition auf der Welle (110) umfasst, wobei die Sicherungsvorrichtung (108) mindestens ein Sicherungselement (124) umfasst, welches mittels mindestens einer Kulissenbahnführung (126) der Sicherungsvorrichtung (108) von einer Sicherungsposition, in welcher ein auf der Welle (110) angeordnetes Werkzeug (104) mittels der Sicherungsvorrichtung (108) in der Arbeitsposition sicherbar oder gesichert ist, in eine Werkzeugwechselposition bringbar ist, in welcher ein Werkzeug (104) auf die Welle (110) aufsteckbar und/oder von der Welle (110) entnehmbar ist.