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High-flexibility viscoelastic abrasive and preparation method thereof

A viscoelastic and highly flexible technology, applied in the field of abrasive manufacturing, can solve the problems of low yield, high efficiency of aspherical lenses, expensive aspherical lenses, etc., and achieve the effect of improving surface accuracy and reducing roughness

Inactive Publication Date: 2015-09-09
XUZHOU POLISH MACHINE TOOL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-quality aspheric lenses are very expensive. The reason is that the existing machine tool technology is difficult to hon aspheric lenses to the required surface roughness with high efficiency and high precision, and the yield rate is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a highly flexible viscoelastic abrasive, especially a preparation method of a highly flexible viscoelastic abrasive for special machine tools to process brittle and complex surface workpieces. Polystyrene and silicone rubber are mixed together, and additives are added to adjust its flexibility. , fluidity and elasticity, add abrasive grains and mix evenly to obtain highly flexible viscoelastic abrasives.

[0019] The composition and proportioning of the highly flexible viscoelastic abrasive of the present invention are as follows (proportioning by weight):

[0020] Polystyrene: 10 parts Plasticizer dioctyl phthalate DOP: 10 parts

[0021] Methyl silicone rubber: 90 parts Methyl silicone oil: 20 parts

[0022] Diamond abrasive grains: 80 parts.

[0023] The preparation process of the highly flexible viscoelastic abrasive of the present invention is as follows: add polystyrene into the reaction kettle, start stirring, heat up to 150-180°C; add pl...

Embodiment 2

[0025] The principle of embodiment 2 is the same as that of embodiment 1, except that the composition and proportion of the highly flexible viscoelastic abrasive of the present invention are as follows (proportion by weight):

[0026] Polystyrene: 20 parts Plasticizer dioctyl phthalate: 15 parts

[0027] Ethyl silicone rubber: 40 parts Phenyl silicone rubber: 40 parts

[0028] Methyl silicone oil: 15 parts Silicon carbide abrasive grain: 80 parts.

[0029] The preparation process of the highly flexible viscoelastic abrasive of the present invention is as follows: add polystyrene into the reaction kettle, start stirring, heat up to 150-180°C; add plasticizer dioctyl phthalate, and stir for 0.5-2 hours; Cool down, add ethyl silicone rubber, phenyl silicone rubber and methyl silicone oil, mix and stir for 1~2h; add silicon carbide abrasive grains, mix and stir evenly for 0.5~2h; discharge, pack.

Embodiment 3

[0031] The principle of embodiment three is the same as that of embodiment one, except that the composition and proportion of the highly flexible viscoelastic abrasive of the present invention are as follows (proportion by weight):

[0032] Phenyl silicone rubber: 100 parts methyl silicone oil: 10 parts

[0033] Cubic boron nitride abrasive grain: 50.

[0034] The preparation process of the highly flexible viscoelastic abrasive of the present invention is as follows: add phenyl silicone rubber and methyl silicone oil into the reaction kettle, stir for 1-2 hours; add cubic boron nitride abrasive grains, mix and stir evenly for 0.5-2 hours; discharge, Package.

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PUM

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Abstract

The invention discloses a high-flexibility viscoelastic abrasive specially used for a special honing machine tool and a preparation method of the high-flexibility viscoelastic abrasive and belongs to the technical field of abrasive manufacturing. The high-flexibility viscoelastic abrasive specially used for the special honing machine tool comprises the following components in parts by weight: 0-20 parts of polystyrene, 5-20 parts of a plasticizer dioctyl phthalate, 80-100 parts of silicon rubber, 5-30 parts of methyl silicone oil and 50-80 parts of abrasive particles. The high-flexibility viscoelastic abrasive has flowability and elasticity, the processing quality of a brittle complex surface workpiece can be obviously improved, the surface of a workpiece can be efficiently honed into a frosted mirror surface, and sparks or large dust can be prevented from being produced in processing, so that the high-flexibility viscoelastic abrasive is clean and environmental-friendly and is low in production cost.

Description

technical field [0001] The invention belongs to the technical field of abrasive manufacturing, and in particular relates to a preparation method of a highly flexible viscoelastic abrasive, in particular to a preparation method of a highly flexible viscoelastic abrasive used for special honing machine tools to process brittle and complex surface workpieces. Background technique [0002] With the development of modern science and technology, brittle material parts play a very important role in many fields, especially in the aerospace, optical and electronic industries, and there are very strict requirements on the machining accuracy and surface texture of brittle material workpieces. So far, the grinding of parts with brittle complex surfaces is still a very difficult subject. Their most prominent feature is the complex surface of the parts and low fracture toughness. When the load on the material exceeds the elastic limit, fracture damage will occur, and cracks and pits will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14C08L83/04C08L25/06C08K5/12C08K3/04C08K3/34C08K3/38C09K3/14
Inventor 不公告发明人
Owner XUZHOU POLISH MACHINE TOOL CO LTD