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Polishing techniques for glass

Polishing techniques for glass

After rough grinding and fine grinding, the surface of glass still belongs to a fine "rough surface", which needs to be polished to make the glass a transparent and smooth surface. The glass that has been ground with coarse abrasives can be polished with polishing materials to make it bright and shiny. Our company mainly uses mechanical polishing as the polishing method.  Common polishing materials include red powder (iron oxide), cerium oxide, chromium oxide, thorium oxide, zirconium oxide, etc. Daily glass processing also uses feldspar powder.

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Grinding Technology of Glass

Grinding Technology of Glass

Grinding of glass refers to the grinding of surface defects and remaining protrusions of glass products after forming, to achieve certain optical requirements and regular geometric shapes. It can be divided into two types: surface grinding and edge grinding. For example, when manufacturing mirror glass, under the pressure and rotational force of the grinding disc, the rough surface of the flat glass blank is continuously damaged and peeled off by the abrasive, ultimately becoming a flat and opaque surface.

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What do RA, RZ, RP, RQ, and RSM represent in the roughness parameters

What do RA, RZ, RP, RQ, and RSM represent in the roughness parameters

Surface roughness refers to the unevenness of the machined surface with small spacing and small peaks and valleys. The distance (wave distance) between its two peaks or valleys is very small (below 1mm), which belongs to the micro geometric shape error. The smaller the surface roughness, the smoother the surface. Surface roughness is generally formed by the machining method used and other factors, such as friction between the tool and the surface of the part during the machining process, plastic deformation of the surface layer metal during chip separation, and high-frequency vibration in the process system. Due to differences in processing methods and workpiece materials, there are differences in the depth, density, shape, and texture of the marks left on the processed surface. Surface roughness is closely related to the fitting properties, wear resistance, fatigue strength, contact stiffness, vibration, and noise of mechanical parts, and has a significant impact on the service life and reliability of mechanical products. Generally, Ra is used for annotation.

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Manufacturing process of optical glass lenses

Manufacturing process of optical glass lenses

1.1 Characteristics and general processes of optical component manufacturing process There are three common types of materials used to make optical components, namely optical glass, optical crystals, and optical plastics. Among them, optical glass, especially colorless optical glass, is widely used. Although the processing of optical components is classified into the category of mechanical processing by industry, the material properties and precision requirements of the processed object are significantly different from those of metal materials, so the processing technology is completely different from metal processes and has special characteristics.

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What is a grinder

What is a grinder

A grinder is a grinding machine that uses a grinding tool coated or embedded with abrasive to grind the surface of a workpiece. Mainly used for grinding high-precision flat surfaces, inner and outer cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces, and other profiles in workpieces. Used for single-sided grinding and polishing of materials.

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Wenzhou Ouhai Zhiyong Grinding Machinery Equipment Co., Ltd. Successfully Revised Website

Wenzhou Ouhai Zhiyong Grinding Machinery Equipment Co., Ltd. Successfully Revised Website

Wenzhou Ouhai Zhiyong Grinding Machinery Equipment Co., Ltd. Successfully Revised Website

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