Granulation polishing film, preparing method thereof and application thereof

A polishing film and granulation technology, which is applied in the field of grinding and polishing, can solve the problems of poor wear resistance and short service life, and achieve the effects of good grinding quality, high grinding efficiency and good self-sharpening

Active Publication Date: 2011-11-02
BEIJING GRISH HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, and propose a granulated polishing film for fine grinding of optical fiber connectors. Good, at the same time, it overcomes the defects of poor wear resistance and short service life of the traditional polishing film, and effectively reduces the processing cost of optical fiber connectors

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  • Granulation polishing film, preparing method thereof and application thereof
  • Granulation polishing film, preparing method thereof and application thereof
  • Granulation polishing film, preparing method thereof and application thereof

Examples

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preparation example Construction

[0025] The preparation method of granulated polishing film comprises the following steps:

[0026] Step 1, prepare granulation slurry: disperse the abrasive powder in one or more metal oxide sols or silica sols, add inorganic binders or organic binders, add auxiliary agents, and use ball milling or sand Dispersion methods such as grinding are uniformly dispersed;

[0027] The abrasive powder in the granulation slurry includes: diamond, silicon carbide, alumina, zirconia, modified cerium-aluminum oxide, cubic boron nitride or silica and other superhard abrasives with an average particle size of ≤3 μm; The average particle size of the abrasive powder for fine grinding is ≤ 1 μm, and the average particle size of the abrasive powder for medium grinding is ≤ 3 μm.

[0028] The metal oxide sol in the granulation slurry is one or more of alumina sol, magnesia sol, titania sol or zirconia sol with a concentration of 10% to 60%, or a concentration of 10% to 60%. The remaining silica ...

Embodiment 1

[0037] Take 1Kg of diamond micropowder with an average particle size of 1μm, add 11Kg of silica sol (homemade or commercially available) with a concentration of 40%, 100g of dispersant, and a little defoamer, and use a ball mill to disperse the above mixed solution; The granulation test of the dispersed slurry was carried out on a spray dryer. The inlet temperature was 240 °C, the outlet temperature was 110 °C, and the atomizer speed was 35000 r.p.m to obtain spherical composite abrasive particles with an average particle size of 18 μm; Abrasive particles 1.5Kg, add polyester glue, epoxy resin glue, epoxy resin toughening agent and a mixture of acetone, toluene, methyl ethyl ketone, ethyl acetate, and disperse the above mixture by a high-speed mixer for 120min. The coating machine was applied to the 75 μm polyester film treated with 5 μm primer, and the thickness of the abrasive layer was 40 μm. After drying, a granulated polishing film for fine grinding of optical fiber connec...

Embodiment 2

[0039] Take 1.5Kg of diamond micropowder with an average particle size of 2μm, add 5Kg of silica sol (homemade or commercially available) with a concentration of 20%, a little defoamer and dispersant, and use a ball mill to disperse the above mixed solution; The granulation test of the dispersed slurry was carried out on a spray dryer. The inlet temperature was 230 °C, the outlet temperature was 110 °C, and the atomizer rotation speed was 33000 r.p.m to obtain spherical composite abrasive particles with an average particle size of 20 μm; Abrasive particle 2Kg, add polyester glue, epoxy resin glue, epoxy resin toughening agent, curing agent and mixture of toluene, methyl ethyl ketone, xylene, acetone, add a little leveling agent, and mix the above mixture with a high-speed mixer Disperse for 120min, and use a roll coater to coat on 75μm polyester film treated with 4μm primer, and the thickness of the abrasive layer is 45μm. After drying, a granulated polishing film for grinding ...

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Abstract

The present invention provides a for the precise finish of an optical fiber connector with lasting abrasive power and high life time, a preparing method thereof and an application thereof, and can strengthen self-shaping. The granulation polishing film comprises base material and an abrasive layer coated at the surface of the base material, wherein the abrasive layer comprises resinoid bond and composite abrasive grains in global coacervate; the composite abrasive grains are global coacervates prepared by granulating abrasive powder distributed in the mixing liquid of metal oxide sol and organic or inorganic binder; the resinoid bond comprises epoxide resin and epoxide resin toughener, and also comprises one or several kinds of polyester, polyurethane, daiamid, acrylate and polyurea. The granulation polishing film is used for the grinding finish of the optical fiber connector and optical fiber arrays. The life time is one to two times longer than that of the traditional polishing filmfor the finish of the optical fiber connector, and the processing cost of the optical fiber connector is reduced.

Description

technical field [0001] The invention relates to the technical field of grinding and polishing, in particular to a granulated polishing film suitable for fine grinding of optical fiber connectors and a preparation method thereof. Background technique [0002] Optical fiber connectors are the key connecting devices in the optical fiber communication industry. With the popularization and development of optical fiber network (such as FTTB, FTTC, FTTH, etc.) technology and 3G networks, the amount of optical fiber connectors has also greatly increased, and the production and processing industry of optical fiber connectors has developed. fast. In practical applications, in order to ensure the transmission quality of optical signals, the end of the optical fiber connector needs to be ground and polished. The polishing film used for precision grinding and polishing of traditional optical fiber connectors is mainly made of diamond, silicon carbide, aluminum oxide and other high hardne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/02B24D3/28B24D11/00B24B19/00
Inventor 李琴齐朝晖冉瑞红许亚杰
Owner BEIJING GRISH HITECH
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