Preparation method and polishing method of fused silica anhydrous environment bonded abrasive grain polishing wheel
A technology of fused silica and anhydrous environment, which is applied in the direction of grinding/polishing equipment, bonded grinding wheels, abrasives, etc., can solve the problems of abrasive waste, randomness, and generation of hydration layers, etc., to reduce mechanical damage, uniform wear, and smooth surface Effects of Surface Accuracy and Roughness Convergence Speed Improvement
Inactive Publication Date: 2018-11-27
XIAMEN UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a method for preparing a fused silica anhydrous environment consolidated abrasive polishing wheel in order to solve the problems of randomness, abrasive waste, and hydration layer in free abrasive polishing.
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[0019] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.
[0020] The specific steps of the preparation method of the fused silica anhydrous environment consolidated abrasive polishing wheel are as follows:
[0021] Mix the abrasives, additives and binders, put them into a muffle furnace for drying, ball mill, and mix, introduce the obtained powder mixture into a cylindrical mold, apply a hydraulic pressure of 7 MPa and press it into pellets, demould, and then Put it into a muffle furnace for firing to obtain a fused silica anhydrous environment consolidated abrasive polishing wheel.
[0022] The mass percentage of the abrasive, the additive and the binder is 70% of the abrasive, 15% of the additive, and 15% of the binder; the purity of the abrasive is CeO with a purity of more than 98% 2 Abrasive, with an average particle size of 2.0-2.5 μm; the abrasive adopts grinding fused silica, and the diameter of the...
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Abstract
The invention relates to a preparation method and polishing method of a fused silica anhydrous environment bonded abrasive grain polishing wheel, and relates to the processing of hard and brittle materials. The method comprises the following steps of: mixing abrasive, additive and binder, putting the mixture into a muffle furnace for drying, ball milling, mixing, introducing the obtained powder mixture into a cylindrical mold, pressing the powder into tablets with a liquid pressure of 7 MPa, demolding, and sintering in the muffle furnace; thereby obtaining the fused silica anhydrous environment bonded abrasive polishing wheel. The polishing wheel is bonded on the end face of a stainless steel tool head, and is arranged on a numerical control machine tool, and a grating path is used to carry out whole surface processing on the fused silica. By using the bonded abrasive grain polishing wheel, chemical reaction is carried out on the outer layer of the glass under the anhydrous environment; the additive cracks in the processing process to generate a chip containing space, and meanwhile, the hardness of the cracked additive is greater than that of the binder after sintering, so that thebinder can be scraped off, and the abrasive can be further exposed.
Description
technical field [0001] The invention relates to the processing of hard and brittle materials, in particular to a preparation method and a polishing method of a fused silica anhydrous environment consolidated abrasive polishing wheel in an anhydrous environment. Background technique [0002] Fused silica glass is widely used in the manufacture of windows and shields due to its good physical and chemical properties, and fused silica glass (fused silica) is a hard and brittle material that is difficult to process. Surface Quality. The grinding stage includes fixed abrasive grinding and free abrasive grinding, mainly to reduce the surface accuracy error and roughness, but whether it is fine grinding or rough grinding (including ductility models), surface cracking and surface residues will inevitably occur. Defects such as stress, surface plastic flow, and subsurface damage. In order to remove residual defects from the grinding stage, the glass is generally further processed by...
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IPC IPC(8): B24D18/00B24D7/18C04B26/12C04B40/02
CPCB24D18/0009B24D7/18C04B26/122C04B2111/00362C04B14/30C04B14/22C04B20/0076C04B40/0263
Inventor 杨炜刘文俊唐辉洋
Owner XIAMEN UNIV