CN103600307A

CN103600307A - Elastic resin grinding wheel

Info

Publication number: CN103600307A
Application number: CN201310588765.7A
Authority: CN
Inventors: 王立新; 韩健; 王训扬; 王卫国; 张�诚; 黄健
Original assignee: JIANGSU SUBEI GRINDING WHEEL FACTORY CO Ltd
Current assignee: JIANGSU SUBEI GRINDING WHEEL FACTORY CO Ltd
Priority date: 2013-11-21
Filing date: 2013-11-21
Publication date: 2014-02-26

Abstract

The invention discloses an elastic resin grinding wheel. The elastic resin grinding wheel is made of raw materials comprising, by weight, 100 parts of monocrystalline fused alumina taken as grinding materials, 17-25 parts of phenolic resin, 10-15 parts of epoxy resin and 4-10 parts of a pore-forming agent. A forming process includes feeding in three times, namely feeding 50% of forming materials in the first time, 30% in the second time and 20% in the third time, evenly mixing, leveling and covering the mixed forming materials with a template prior to pressing the mixed forming materials to the needed thickness; a hardening process includes segmented heating or heat insulation in a manner that constant temperature is gradually increased to 189DEG C, and hardening time is 36 hours. The grinding wheel is effectively improved in self-sharpening performance, lowered in weight, convenient to mount and set arrangement and improved in structure uniformity and balance performance; hardening temperature and time are optimized, elasticity and hardness of the grinding wheel are moderate, surface accuracy of machining workpiece is improved, time interval of grinding wheel dressing is prolonged, deep grinding cracks do not occur and grinding effect is more ideal.

Description

Resin elastic grinding wheel

Technical field

The present invention relates to a kind of emery wheel, specifically relate to the resin elastic grinding wheel that a kind of centerless grinding mode is used.

Background technology

Use emery wheel to carry out a kind of common grinding method that centreless grinding is machining, particularly the axle classes such as front fork core at the piston rod of grinding vehicle shock absorber, tooth sector axle, motorcycle add man-hour, use more centerless grinding mode, at present, the emery wheel of use is conventional ceramic emery wheel or resin wheel mostly.For surface accuracy, require some processing works, also need to carry out later process and carry out polishing grinding, production efficiency is low.Existing domestic also have part manufacturer production resin elastic grinding wheel to solve this problem, to improve the product quality of axle.But 1. ubiquity: self-sharpening can be poor, and after a small amount of grinding, the pore of wheel face is filled in extremely, and abrasive material cannot come off, and cannot form new grinding layer, thereby loses grinding performance; 2.: elasticity is less than normal, abrasive particle easily comes off, and roughness does not reach requirement; 3.: hardness is uncomfortable, easily cause surface of the work to produce shake trace, cause waste product; The problem such as 4.: wear resistance ratio is little, service life is short.

Summary of the invention

In order to solve the problem of putting forward above, the object of the present invention is to provide a kind of Surface Machining precision high, there is no dark polishing scratch, currying work every length, self-sharpening can be good, working (machining) efficiency is high resin elastic grinding wheel.

Technical scheme of the present invention is: a kind of resin elastic grinding wheel, the preparation method of described emery wheel, comprise batching, batch mixing, moulding, hardening process, its improvements are to adopt raw material and weight proportion umber to be in described burden process: abrasive material is 100 parts of single alundums, take abrasive material as 100 parts of calculating, add 17 ~ 25 parts, phenolic resins, 10 ~ 15 parts of epoxy resin, 4 ~ 10 parts of pore formers.Described molding procedure is divided and is fed intake for three times, throw for the first time molding mass 50%, stir material and strike off after evenly, evenly add and smash molding mass, throw again the second defective material, material be heavily molding mass 30%, stirs material and strikes off after even, evenly adds and smashes molding mass, throw again material for the third time, material be heavily molding mass 20%, stirs material and strikes off after even, is pressed into desired thickness after covering template; Described hardening process carries out segmentation heats or is incubated, and its technological parameter is:

Further scheme is: in described burden process, adopt raw material and weight proportion umber to be: abrasive material is 100 parts of single alundums, take abrasive material as 100 parts of calculating, add 20 parts, phenolic resins, 12 parts of epoxy resin, 6 parts of pore formers.The granularity of described single alundum is F700.

The present invention adopts above technical scheme, utilize free from foreign meter in single alundum abrasive material crystal, there is multangular cutting edge, improved the self-sharpening energy of described emery wheel; Adding of pore former, had both alleviated emery wheel weight, was convenient to install and set and adjust, and was conducive to again chip removal and heat radiation simultaneously.After the method is even by mixing of materials, by three batches, drop in grinding wheel forming molds, effectively improved structural homogenity and the balance quality of emery wheel, static balance grams is less than 50% of national Specification.The method is optimized the temperature and time of sclerosis, and hardening process parameter has been done improvement, and the elasticity of emery wheel and hardness are more moderate, improved the surface accuracy of processing work, extended the interval time of crushing, because elastic effect can not produce dark polishing scratch, ground effect is even more ideal.

The specific embodiment

Adopt raw material and weight proportion umber to be:

According to the employing raw material of above-described embodiment 1, embodiment 2 and weight proportion umber, accurately weigh respectively various materials, carry out by described moulding, hardening process method, making 1-500*150*305-SA/F700K9B-70m/s emery wheel after batch mixing, good Town in Shanghai crowd, Yongxing, Xinxiang, Wuxi Tuo Pudeng damper producer result of use, obtained user's approval.

Claims

1. a resin elastic grinding wheel, the preparation method of described emery wheel, comprise batching, batch mixing, moulding, hardening process, its improvements are to adopt raw material and weight proportion umber to be in described burden process: abrasive material is 100 parts of single alundums, take abrasive material as 100 parts of calculating, add 17 ~ 25 parts, phenolic resins, 10 ~ 15 parts of epoxy resin, 4 ~ 10 parts of pore formers; Described molding procedure is divided and is fed intake for three times, throw for the first time molding mass 50%, stir material and strike off after evenly, evenly add and smash molding mass, throw again the second defective material, material be heavily molding mass 30%, stirs material and strikes off after even, evenly adds and smashes molding mass, throw again material for the third time, material be heavily molding mass 20%, stirs material and strikes off after even, is pressed into desired thickness after covering template; Described hardening process carries out segmentation heats or is incubated, and its technological parameter is:

。

2. by resin elastic grinding wheel described in claim 1, its improvements are to adopt raw material and weight proportion umber to be in described burden process: abrasive material is 100 parts of single alundums, take abrasive material as 100 parts of calculating, add 20 parts, phenolic resins, 12 parts of epoxy resin, 6 parts of pore formers.

3. by resin elastic grinding wheel described in claim 1 and claim 2, its improvements are that the granularity of described single alundum is F700.