Forming method of asphalt polishing rubber disc for large-diameter optical glass processing

Abstract

The invention discloses a forming method of an asphalt polishing plastic tray for processing large-caliber optical glass. A square polishing adhesive is formed in a pouring manner, and a pouring mold comprises a bottom plate, two side plates, three rib plates and a connecting plate. The forming method comprises the following steps: during splicing the square polishing adhesives, an alcohol blast burner needs to be used for preheating the bottom spliced by the square polishing adhesives, and the bottom is directly attached to a marble polishing plastic tray base; pre-correction is performed by using a correction tray; the tray is trimmed by a cutter. Through the adoption of the forming method disclosed by the invention, the uniformity of the polishing adhesive properties on the whole tray surface can be effectively guaranteed; during pouring of the square polishing adhesives, the property of the polishing adhesives can be regulated through controlling the process of manufacturing of the square polishing adhesives, so that the forming method disclosed by the invention effectively replaces a conventional forming manner, of a polishing plastic tray, wherein polishing adhesives are directly heated and transformed into liquid, and the liquid adhesive is directly poured on a marble tray surface to be condensed.

Description

technical field [0001] The invention relates to an annular polishing machine, in particular to a method for forming an asphalt polishing rubber disk used for processing large-diameter optical glass. Background technique [0002] Ring polishing machine is almost the only large-caliber, global planar optical element processing technology in the world at present. It rotates the workpiece to be polished relative to the polishing rubber disc under a certain pressure and the presence of polishing liquid. The mechanical grinding action and the corrosive action of chemical oxidants complete the material removal on the surface of the workpiece and obtain a smooth surface. Compared with other technologies, this technology can simultaneously achieve local and global planarization of large-diameter workpieces, eliminate high points and waves on the surface of workpieces, eliminate high-frequency defects, and achieve ultra-smooth surface processing quality; planarization The speed is fa...

AI Technical Summary

Problems solved by technology

For the large-scale ring polishing machine (diameter ranging from 2m to 4m) used in the precision machining of the surface of large optical components, the polished rubber plate prepared in this way will not be able to be poured completely evenly due to the large surface of the plate, resulting in the entire surface of the plate being formed. The resulting properties are not uniform, which adversely affects the precision machining of the surface of large optical components

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