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High-precision grinding consolidation flexible sand wheel and manufacturing method thereof

A high-precision, grinding technology, applied in the direction of manufacturing tools, grinding/polishing equipment, and machine tools suitable for grinding workpiece planes, etc., can solve the problems of high rigidity and poor flexibility of fine-grained grinding wheels, and achieve abrasive particle size Fine, flexible binder, scientific and reasonable process method

Active Publication Date: 2014-01-01
FUZHOU SHUANGYI GRINDING WHEEL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a high-precision grinding consolidated flexible grinding wheel and its manufacturing method. The purpose is to provide a grinding wheel with fine abrasive grain size and good bonding agent flexibility, so as to solve the problem that the existing fine-grained grinding wheel has large rigidity and poor flexibility and cannot meet high-precision grinding. Processing Requirements Difficulty

Method used

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  • High-precision grinding consolidation flexible sand wheel and manufacturing method thereof
  • High-precision grinding consolidation flexible sand wheel and manufacturing method thereof
  • High-precision grinding consolidation flexible sand wheel and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]1. Preparation of phenolic modified epoxy resin: if preparing 100 Kg of phenolic modified epoxy resin, according to the ratio of phenol: formaldehyde: epoxy resin 22: 47: 31, first weigh 22 Kg of phenol and 47 Kg of formaldehyde into the reaction kettle According to the heating curve, heat up to 98°C, add the catalyst and boil for 30 minutes, cool to 45°C, then add 31 Kg of epoxy resin and stir for 30 minutes, release it into the container, and put it in a cold box at 0-5°C for later use.

[0034] 2. Preparation of PVA aqueous solution: For example, to prepare 100 Kg of PVA aqueous solution, according to the ratio of PVA:water 19:81, first weigh 19 Kg of PVA and 81 Kg of water, put them into a pot and stir to 95°C while heating, keep warm for 1.5 hours, and cool naturally to Pour it out at 40°C and filter it through a 36-mesh sieve and place it in a container for later use.

[0035] 3. Mixing material: Take the 100 Kg abrasive GC grain size W5 grinding wheel material as ...

Embodiment 2

[0043] 1. Preparation of phenolic modified epoxy resin: if preparing 75 Kg of phenolic modified epoxy resin, according to the ratio of phenol: formaldehyde: epoxy resin 24: 43: 33, first weigh 18 Kg of phenol and 32.25 Kg of formaldehyde into the reaction kettle According to the heating curve, heat up to 98°C, add catalyst and boil for 30 minutes, cool to 45°C, add 24.75 Kg of epoxy resin and stir for 30 minutes, release it into a container, and place it in a 0-5°C cold box for later use.

[0044] 2. Preparation of PVA aqueous solution: For example, to prepare 75 Kg of PVA aqueous solution, according to the ratio of PVA:water 17:83, first weigh 12.75 Kg of PVA and 62.25 Kg of water, put them into a pot while heating and stirring to 95°C, keep warm for 1.5 hours, and naturally Cool to 40°C, pour out and filter through a 36-mesh sieve and place in a container for later use.

[0045] 3. Mixing material: Take the 125 Kg grinding material WA particle size W14 grinding wheel materia...

Embodiment 3

[0053] 1. Preparation of phenolic modified epoxy resin: if preparing 50 Kg of phenolic modified epoxy resin, according to the ratio of phenol: formaldehyde: epoxy resin 21: 47: 32, first weigh 10.5 Kg of phenol and 23.5 Kg of formaldehyde into the reaction kettle According to the heating curve, heat up to 98°C, add catalyst and boil for 30 minutes, cool to 45°C, add 16 Kg of epoxy resin and stir for 30 minutes, release it into a container, and put it in a cold box at 0-5°C for later use.

[0054] 2. Preparation of PVA aqueous solution: For example, to prepare 50 Kg of PVA aqueous solution, according to the ratio of PVA:water 16.5:83.5, first weigh 8.25 Kg of PVA and 41.75 Kg of water, put them into a pot while heating and stirring to 95°C, keep warm for 1.5 hours, and naturally Cool to 40°C, pour out and filter through a 36-mesh sieve and place in a container for later use.

[0055] 3. Mixing material: Take the 75 Kg grinding material C particle size W7 grinding wheel material...

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Abstract

A high-precision grinding consolidation flexible sand wheel comprises the raw materials in percentage by weight: 22-50wt% of silicon carbide abrasive or white corundum abrasive, 6-15wt% of phenolic aldehyde modified epoxy resin, 25-65wt% of poval PVA (polyvinyl acetate) aqueous solution, 5.5-11wt% of softening agent, coupling agent, defoaming agent, micropore agent and catalyst and 8-19wt% of water starch water dextrin binder. The manufacturing method comprises the steps of preparing the phenolic aldehyde modified epoxy resin and the PVA aqueous solution and placing the prepared materials in a mixer, sequentially adding the additives, and stirring to be slurry-shaped; pouring the well stirred materials to achieve the corresponding height of dies needed by sand wheels with different standards; drying the injection-molded materials to be solidified; moving the dried and solidified blank into a hardening furnace, heating, and performing thermal insulation to obtain the high-precision grinding consolidation flexible sand wheel. The sand wheel is fine in abrasive grain and good in binding agent flexibility, and solves the problems that the existing fine-grain sand wheel is large in rigidity and poor in flexibility and cannot meet the high-precision grinding machining demands.

Description

technical field [0001] The invention relates to the technical field of abrasives, in particular to a high-precision grinding consolidated flexible grinding wheel and a manufacturing method thereof. Background technique [0002] Abrasives are known as industrial teeth and industrial beauticians, and are an indispensable part of the national economy, especially the modern manufacturing industry. Grinding is one of the most precise processing methods of "turning, milling, planing, and grinding", especially the high-precision processing with a roughness below Ra0.015um cannot be achieved by turning, planing, and milling. Due to the continuous improvement and growth of demand, it also promotes the research and development of high-precision grinding wheel and abrasive tool technology, and the product variety, output, and quality are developing in a large and diverse manner. [0003] There are many kinds of abrasives, which are divided according to the product form: bonded abrasiv...

Claims

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Application Information

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IPC IPC(8): B24D3/30B24D3/20B24B7/02
Inventor 郑春和郑宝乡林光郑小勇郑顺伟郑湘週
Owner FUZHOU SHUANGYI GRINDING WHEEL
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