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Manufacturing method for hexafluoropropylene oxide modified phenolic resin grinding wheel

A technology of hexafluoropropylene oxide and phenolic resin, which is applied in the manufacture of tools, metal processing equipment, grinding/polishing equipment, etc. It can solve the problems of poor heat resistance, restricting the use efficiency and life of resin grinding wheels, and easily generating dust. , to achieve the effect of high heat resistance

Active Publication Date: 2016-12-14
唐山市名鲨五金磨具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: the heat resistance of the resin grinding wheel prepared by using phenolic resin as a binder is poor during the grinding process, which restricts the service efficiency and life of the resin grinding wheel, and at the same time, it is easy to generate dust during the production process. The problem of serious environmental pollution, the present invention mixes and heats p-tert-butylphenol formaldehyde resin and methanol, respectively adds ferric nitrate, nickel nitrate and carbon fiber after pretreatment, obtains the mixed material, dissolves it in acetone after calcining and pulverizing, The mixed solution is obtained, and then silicon carbide, bauxite and other materials are ball-milled, added to the mixed solution and stirred, and the prepared hexafluoropropylene oxide modified phenolic resin is added, stirred to obtain the mixed material, and finally solidified to obtain Hexafluoropropylene oxide modified phenolic resin grinding wheel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, weigh 8g of carbon fiber and crush it with a pulverizer, pass through a 200-mesh sieve to obtain carbon fiber powder, put it in a beaker, add 200mL of hydrogen peroxide with a mass concentration of 30%, stir and soak for 2 hours, and filter to obtain a filter residue, that is, after pretreatment carbon fiber; then weighed 30g of p-tert-butylphenol formaldehyde resin and added it to a three-neck flask with a thermometer and a reflux device, then added 200mL of methanol, placed the beaker in an oil bath, raised the temperature to 130°C, stirred for 2h, and then Add 6g of ferric nitrate and 4g of nickel nitrate in turn, stir for 30min, then add 8g of the pretreated carbon fiber prepared above, stir for 2h to obtain a mixed material, place the obtained mixed material in a muffle furnace, and under nitrogen protection conditions, Calcined at 1000°C for 4 hours, and then naturally cooled to room temperature to obtain a carbon fiber modified phenolic resin; the carbon fi...

example 2

[0021]First, weigh 5g of carbon fiber and crush it with a pulverizer, pass through a 100-mesh sieve to obtain carbon fiber powder, put it in a beaker, add 100mL of hydrogen peroxide with a mass concentration of 30%, stir and soak for 1 hour, and filter to obtain a filter residue, that is, after pretreatment carbon fiber; then weighed 20g of p-tert-butylphenol formaldehyde resin and added it to a three-neck flask with a thermometer and a reflux device, then added 100mL of methanol, placed the beaker in an oil bath, raised the temperature to 120°C, stirred for 1h, and then Add 4g of ferric nitrate and 2g of nickel nitrate in turn, stir for 20min, then add 5g of the pretreated carbon fiber prepared above, stir for 1h to obtain a mixed material, place the obtained mixed material in a muffle furnace, and under nitrogen protection conditions, Calcined at 800°C for 3 hours, and then naturally cooled to room temperature to obtain a carbon fiber modified phenolic resin; the carbon fiber...

example 3

[0024] First weigh 7g of carbon fiber and crush it with a pulverizer, pass through a 150-mesh sieve to obtain carbon fiber powder, put it in a beaker, add 150mL of hydrogen peroxide with a mass concentration of 30%, stir and soak for 2 hours, and filter to obtain a filter residue, that is, after pretreatment carbon fiber; then weighed 25g of p-tert-butylphenol formaldehyde resin and added it to a three-necked flask with a thermometer and a reflux device, then added 150mL of methanol, placed the beaker in an oil bath, raised the temperature to 125°C, stirred for 1h, and then Add 5g of ferric nitrate and 3g of nickel nitrate in turn, stir for 25min, then add 7g of the pretreated carbon fiber prepared above, stir for 2h to obtain a mixed material, place the obtained mixed material in a muffle furnace, and under nitrogen protection conditions, Calcined at 900°C for 4 hours, and then naturally cooled to room temperature to obtain a carbon fiber modified phenolic resin; the carbon fi...

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Abstract

The invention relates to a manufacturing method for a hexafluoropropylene oxide modified phenolic resin grinding wheel, and belongs to the technical field of resin grinding wheel manufacturing. The manufacturing method comprises the following steps of: mixing and heating p-tert-butylphenol formaldehyde resin and methyl alcohol, and separately adding ferric nitrate, nickel nitrate and pre-treated carbon fibers to obtain mixed materials; burning, crushing and dissolving the mixed materials into acetone to obtain a mixed solution; ball-milling substances such as silicon carbide and bauxite, adding the ball-milled materials into the mixed solution to stir, and adding the prepared hexafluoropropylene oxide modified phenolic resin, stirring to obtain a material mixture; and finally, curing the material mixture to obtain the hexafluoropropylene oxide modified phenolic resin grinding wheel. The hexafluoropropylene oxide modified phenolic resin grinding wheel manufactured by the manufacturing method is high in heat resistance at a temperature of 370 DEG C or higher, and has grinding efficiency being 0.11-0.15kg / min; and in the production process, the environment is not polluted, so that the manufacturing method is environmentally friendly.

Description

technical field [0001] The invention relates to a preparation method of a hexafluoropropylene oxide modified phenolic resin grinding wheel, belonging to the technical field of resin grinding wheel preparation. Background technique [0002] Resin grinding wheel is a grinding wheel made of resin with high strength. It is used in cutting discs, double-end faces, heavy-duty grinding wheels, polishing wheels, etc. It has a certain degree of elasticity, good self-sharpening, easy manufacture, and short process cycle; it is widely used in rough grinding, rough grinding, cutting and free grinding, such as grinding steel ingots, deburring castings, etc. Resin grinding wheel is a grinding wheel made of resin as a binder, such as phenolic resin, epoxy resin, polyurethane resin, etc. The resin grinding wheel has high strength and is mainly used for cutting and grinding metal materials such as steel pipes, steel bars, and steel bars. The production of resin grinding wheels is generally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D3/34C08G8/28B24D18/00
CPCB24D3/285B24D3/344B24D18/0009B24D18/009C08G8/28
Inventor 吴迪薛培龙孟浩影
Owner 唐山市名鲨五金磨具有限公司
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