The deep processing of quartz glass refers to the quartz glass raw materials (tubular, rod, sheet, block) processed into the user needs the quartz device, in the method is divided into cold and hot processing two forms. The following is a detailed description of the use of cold glass processing.
  Cold processing mainly includes cutting, grinding, polishing three:
  1, cutting: mainly using diamond saw blade, diamond saw blade cut quartz tube or quartz sheet. Multi-knife cutting machine, line cutting machine, mainly used for quartz anchor, quartz block cutting. Laser cutting machine, the inner cutting machine, mainly used for cutting guide plate.
  2, grinding: flat grinding, single-axis, biaxial polishing machine, sub-coarse grinding: Hcp in 10 ~ 20μm finish ▽ 2. plane milling machine, multi-function milling machine, fine grinding: Hcp in 6.3μm finish ▽ 6. drilling, Inner garden, outside the garden grinder, coarse grinding: Hcp in 6μm below ▽ 7.
  3, polishing: multi-axis polishing machine: Hcp <λ, that is 0.5μm below. ① rough grinding purpose is to shape, so that the workpiece has a certain geometric shape. With the abrasive abrasive or abrasive processing of quartz glass surface, the surface roughness Hcp10 ~ 20μm, ▽ 2. Coarse grinding with a kind of abrasive on the disc grinding, or with a combination of abrasive mechanical grinding. Scattered abrasive with green SiC color (emery) and fused white corundum and several; with 60 # ~ 12 # fusible corundum sand can be achieved ▽ 2.     Combine a SiC resin, diamond grinding wheel. Coarse grinding is best done on a surface grinder or milling machine with a combination of abrasive. ②, fine grinding: the purpose is to improve the surface roughness, so that the workpiece was close to the completion of the geometric shape, laying the foundation for polishing, grinding with abrasive abrasive surface, uneven Hcp <6.3μm; dimensional accuracy of 0.5 ~ 1.0mm. There are two kinds of fine grinding: manual bulk material + flat disc, the general use of smaller disc, line speed 12m / s or more, processing pieces in the disc on the oval movement, the normal rotation 180 °. Mechanical grinding, on the plate, the workpiece fixed to circular cast iron plane. Single-axis polishing machine, double-axis bubble foot (H015 type) axis polishing machine. ③, fine grinding: the purpose is to further improve the quality of glass surface wisdom, to minimize the polishing must be completely removed the thickness of the damage layer, and further refine the geometric size. Hcp <6μm, ▽ 7 or so. The main indicator of grinding is the finish, the inspection method is in the reflected light with the naked eye. Grinding abrasive is 120 ~ 14μm. Should try to avoid abrasions. ④, polishing Hcp <λ; that is <0.5μm. The purpose of polishing is that the microscopic fluctuation of glass light is less than the wavelength of light. Fine grinding stone glass can be polished; so that the glass has a good ability to light through. Used asphalt + rosin gas polishing glue; polishing workshop requires constant temperature. There are two high-speed and low-speed polishing equipment. Various tool fixtures.
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