A kind of viscoelastic magnetic abrasive tool with silicon rubber as matrix and preparation method thereof

A magnetic abrasive tool and silicone rubber technology, which is applied in the direction of grinding/polishing equipment, abrasive materials, grinding devices, etc., can solve the problems of difficult machining of workpieces with complex shapes, plastic deformation of the metal surface, and high cost of abrasive tools. Good efficiency, low cost, low cost effect

Active Publication Date: 2019-08-16
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of high cost of abrasive tools in the prior art, difficult processing of workpieces with complex shapes and surfaces, plastic deformation of the metal surface after processing, increased surface hardness, and residual compressive stress, and provides a silicon rubber-based Viscoelastic magnetic abrasive tool and preparation method thereof, the invention is simple to prepare, has the characteristics of viscoelasticity, plasticity, fluidity and magnetism

Method used

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  • A kind of viscoelastic magnetic abrasive tool with silicon rubber as matrix and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Weigh 20g of 107 silicone rubber with an electronic balance, adjust the speed of the mixer to 400r / min and stir for 1h;

[0037](2) Heat the stirred 107 silicone rubber in a heating furnace to 120°C, keep stirring, and let it cool naturally after heating for 30 minutes;

[0038] (3) Measure 0.01g of silane coupling agent and 1.871g of absolute ethanol with a dropper, mix the two and stir evenly, and prepare 1.88g of silane coupling agent in absolute ethanol solution for later use;

[0039] (4) Weigh 0.94g of nano-silica with an electronic balance, put it into the prepared silane coupling agent anhydrous ethanol solution and stir for 30 minutes. all evaporated to dryness;

[0040] (5) Add the heated and evaporated nano-silica into the cooled 107 silicone rubber, stir at 600r / min for 30min until uniformly dispersed;

[0041] (6) Use a dropper to measure 1.03g of silicone oil and 1.03g of naphthenic oil into the 107 silicone rubber reinforced with nano-silica, stir a...

Embodiment 2

[0050] (1) Weigh 15.43g of 107 silicone rubber with an electronic balance, adjust the speed of the mixer to 400r / min and stir for 1h;

[0051] (2) Heat the stirred 107 silicone rubber in a heating furnace to 120°C, keep stirring, and let it cool naturally after heating for 30 minutes;

[0052] (3) Use a dropper to measure 0.023g of silane coupling agent and 2.436g of absolute ethanol, mix the two and stir evenly, and prepare 2.46g of silane coupling agent in absolute ethanol solution for later use;

[0053] (4) Weigh 1.23g of nano-silica with an electronic balance, put it into the prepared silane coupling agent anhydrous ethanol solution and stir for 30min. all evaporated to dryness;

[0054] (5) Add the heated and evaporated nano-silica into the cooled 107 silicone rubber, stir at 600r / min for 30min until uniformly dispersed;

[0055] (6) Use a dropper to measure 1.645g of silicone oil and 1.645g of naphthenic oil into the 107 silicone rubber reinforced with nano-silica, st...

Embodiment 3

[0064] (1) Weigh 18.8g of 107 silicone rubber with an electronic balance, adjust the speed of the mixer to 400r / min and stir for 1h;

[0065] (2) Heat the stirred 107 silicone rubber in a heating furnace to 120°C, keep stirring, and let it cool naturally after heating for 30 minutes;

[0066] (3) Measure 0.02g of silane coupling agent and 2.33g of absolute ethanol with a dropper, mix the two and stir evenly, and prepare 2.35g of silane coupling agent in absolute ethanol solution for later use;

[0067] (4) Weigh 1.175g of nano-silica with an electronic balance, put it into the prepared silane coupling agent anhydrous ethanol solution and stir for 30 minutes. all evaporated to dryness;

[0068] (5) Add the heated and evaporated nano-silica into the cooled 107 silicone rubber, stir at 600r / min for 30min until uniformly dispersed;

[0069] (6) Use a dropper to measure 1.53g of silicone oil and 1.41g of naphthenic oil into the 107 silicone rubber reinforced with nano-silica, sti...

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Abstract

The invention provides a viscoelastic magnetic grinding tool with silicone rubber as the matrix and a preparation method thereof, and belongs to the field of mechanical part precision surface polishing. The grinding tool can solve the problems that in the prior art, a grinding tool is high in use cost, complex-surface workpieces are difficult to machine, and after machining, the metal surface layer is subjected to plastic deformation, the surface hardness is increased, and residual compressive stress exists. A composite grinding material is formed by mixing a matrix, a ferromagnetic phase, a grinding grain phase and a surface modifier, is in a semi-solid shape and has viscoelasticity, plasticity, mobility and magnetism. The matrix of the viscoelastic magnetic grinding tool is made of a semi-solid compound which is composed of 107 silicone rubber, a chemical agent, nano silicon dioxide, silicon oil and naphthenic oil. The prepared novel magnetic grinding tool is high in grinding capability, good in self-sharpening performance small in temperature rise and free of residual stress in machining, and complex surfaces with inner holes, grooves and the like can be subjected to finish machining.

Description

technical field [0001] The invention discloses a viscoelastic magnetic abrasive tool with silicon rubber as a matrix and a preparation method thereof, belonging to the technical field of precision surface finishing of mechanical parts, and in particular relates to the processing and processing of various components of a viscoelastic magnetic abrasive tool with silicon rubber as a matrix The preparation method is a new type of abrasive tool with strong grinding ability, good self-sharpening, small temperature rise, and no residual stress in processing, which can finish the surface of complex shapes such as inner holes, surfaces, and grooves. Background technique [0002] During the processing of mechanical parts, there will always be different degrees of rough surface and various surface defects on the machined surface of the parts. Their production and existence will not only affect the quality and performance of the parts themselves, but also affect the assembly accuracy, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/22B24D3/34B24D18/00
CPCB24D3/22B24D3/34B24D3/342B24D18/00
Inventor 李秀红王栋梁李文辉白小云李唯东杨胜强郭策
Owner TAIYUAN UNIV OF TECH
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