Abstract:
The invention relates to a method and apparatus for polishing parts which have at least one cavity (14) to be polished, said parts (12) being in the form of moulds for the production of plastic items, and the cavity (14) to be polished being the shaped mould for the item. The method envisages the preparation of a polishing mixture (13), which is then brought into contact with the surface of the cavity (14) to be polished, the polishing mixture (13) being moved, for a preset time, relative to the surface to be polished. The polishing mixture (13) is advantageously inserted in the cavity (14) in the part (12), which is an element for containing the polishing mixture (13). The present invention also relates to a composition of the present polishing mixture (13).
Abstract:
A method for polishing articles comprising soft acrylic materials is disclosed. The method includes a cryogenic polishing step and a cleaning step. In the polishing step, a receptacle is charged with polishing beads of various sizes, sodium bicarbonate, a swelling agent and the articles to be polished, for a period of time and at a rotation speed sufficient to remove surface irregularities. Following the polishing step, a receptacle is charged with (a) a cleaning slurry comprising cleaning beads of various sizes and (i) sodium hydroxide and water or (ii) alumina, a surfactant and a solvent and (b) the articles to be cleaned, for a period of time and at a rotation speed sufficient to clean the surface of the polished articles. Agitation is preferably accomplished by a tumbling machine.
Abstract:
A wheel finishing apparatus (10) includes an upwardly opening tank (52) which stores therein a water and media mixture (59). An elongated spindle (30) is mounted on a frame (20) and is displaced directly above the tank (52). The spindle (30) includes on its lower end a hydraulically expandable bulb (49) which acts as a wheel clamp to releasably mount a wheel (18) to be finished onto the spindle (30). A circular plate (78) is mounted on the spindle a predetermined distance from the lower end of the spindle (30) and cooperates with a mounted wheel (18) to define a cylindrical flow channel therebetween. A motor (70) connects to the spindle (30) and operates to rotate the spindle (30) and thus the wheel (18) in the media at high speeds.
Abstract:
A system and process for polishing and radiusing a microhole (52). A liquid slurry with particular rheological properties accelerates as it flows through the microhole (52) to abrade the edge of the microhole (52). When the flow rate reaches a target flow rate the process stops and the microhole (52) is properly calibrated.
Abstract:
This invention relates to a vibrating abrasive cleaning apparatus (3) and method which is powered by a hydraulic drive motor (18) mounted to a square tubing frame which is housed within an enclosure that is vibrated by an electric shaft assembly directly coupled to the hydraulic drive motor (18) and square tubing frame (30). The container assembly (26) is mounted on the rigid square tubing frame, as shown in the Figure, on one side by compression springs (592), on the opposite side by tension springs (554). The compression springs and tension springs have a different spring rate which produces better rolling of the media and therefore, faster parts circulation and cleaning. Further, the apparatus and method provides a unique interchangeable drainage assembly for recirculation of and filtering of the cleaning solvent used in the cleaning process through the use of a dual filter system (75) and then recirculates the solvent back into the container (26).
Abstract:
An apparatus for abrading a workpiece surface by extruding a flowable plastic abrading medium through a passageway (40) which includes said workpiece surface. The apparatus utilizes at least three chambers (20) (52) for feeding and receiving said medium whereby at least two of said chambers operate at differential parameters to effect differential abrasion on different surfaces of said workpiece.
Abstract:
Apparatus and method for finishing workpieces in the presence of liquid in a finishing chamber (10) having outer upstanding wall (12) and bottom members (14) which are symmetrically, relatively rotation-arranged about a common axis, and means for causing the relative motion (16), having an improved resilient seal between the bottom (14) and the wall members (12) including a resiliently-restricted zone, comprising a partial bottom-forming lip (50) or other partial bottom-forming element (13, 15), and means (30) for pumping fluid into said zone such that the fluid enters the zone and flows into the finishing chamber. Fluid storage chambers (26) are below the bottom and adjacent the upstanding wall. Internal drainage means (52) for internal drainage of the finishing chamber fluid preventing drainage of fluid and "fines" goes through the seal. Thereby providing a greatly improved seal having an extended life and permitting closer tolerances, as well as closer control and more efficient maintenance of tolerances.
Abstract:
Apparatus (10) and method for cleaning, rejuvenating or treating the internal surfaces of a timber barrel (28) with an abrasive, the apparatus (10) comprising a clamping arrangement that includes at least one clamp (21-24) for clamping the barrel (28). The clamp (21- 24) being rotatable to rotate the barrel 28 about its axis and the clamping arrangement being operable to tilt the axis of the barrel 28 during rotation through at least about 20°, preferably 25-40°, to either side of horizontal..
Abstract:
자동차용 필러앵커 및 그 제조방법이 개시된다. 본 발명의 일 실시예에 따른 자동차용 필러앵커는, 금속으로 적용되되 상호 한 몸체로 일체화되어 자동차 시트벨트(Seat belt)의 이동을 가이드하는 한 쌍의 제1 및 제2 앵커판을 포함하며, 제1 및 제2 앵커판 모두는, 드로잉(drawing) 가공을 통해 제1 및 제2 앵커판의 일측으로 돌출되게 형성되며, 시트벨트의 이동을 가이드하는 벨트 이동 가이드홈부; 및 제1 및 제2 앵커판의 단부에 형성되되 제1 및 제2 앵커판을 보강하는 보강 플랜지를 포함한다.
Abstract:
Die Erfindung betrifft eine Fließläppvorrichtung zum Glätten mindestens einer Fläche mindestens eines Werkstückes (11), vorzugsweise Impellers, mittels eines abrasiven Fluids (26), umfassend mindestens eine Haltevorrichtung (10) zum Halten des Werkstückes (11), insbesondere umfassend mindestens eine Halteplatte, sowie mindestens eine um die Haltevorrichtung (10) herum angeordnete Einhülleinrichtung (12), innerhalb der das Fluid strömbar ist, wobei die Haltevorrichtung (10) zumindest teilweise durch mindestens einen Innenwandabschnitt (19) der Einhülleinrichtung (12) abgestützt, insbesondere fixiert, ist.