CN105081989A - Compact superfine granularity CBN grinding wheel with high breathability performance and high heat insulation performance and preparation method of compact superfine granularity CBN grinding wheel - Google Patents
Compact superfine granularity CBN grinding wheel with high breathability performance and high heat insulation performance and preparation method of compact superfine granularity CBN grinding wheel Download PDFInfo
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- CN105081989A CN105081989A CN201510534194.8A CN201510534194A CN105081989A CN 105081989 A CN105081989 A CN 105081989A CN 201510534194 A CN201510534194 A CN 201510534194A CN 105081989 A CN105081989 A CN 105081989A
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Abstract
The invention discloses a compact superfine granularity CBN grinding wheel with high breathability performance and high heat insulation performance. In the preparation process of the grinding wheel, firstly, a superfine granularity CBN grinding material is pre-treated, and the mechanical property of the grinding material and adhesion between the grinding material and adhesive are improved; the grinding material immersed in a solution prepared from sodium polystyrenesulfonate, polyethyleneimine and the like is good in dispersity and not prone to agglomeration, and a precipitation-free and flocculation-free stable system is formed in the solution through the grinding material; the breathability performance and the heat insulation performance of the grinding wheel can be improved through added expanded vermiculite powder, and damage of temperature to the grinding wheel is reduced; and the wettability and compatibility between the dried powder and the adhesive are better, adhesive strength is large, and the surface of the grinding wheel is resistant to water and dirt and easy to clean due to the adhesive mainly prepared from fluorocarbon resin. A prepared superfine granularity CBN grinding wheel blank is compact and uniform in structure, resistant to abrasion and corrosion, low in grinding stress and capable of being applied to grinding metal parts with high accuracy.
Description
Technical field
The present invention relates to Ultra-fine CBN emery wheel preparing technical field, dense form Ultra-fine CBN emery wheel particularly relating to a kind of high breathable insulation and preparation method thereof.
Background technology
Ultra-fine CBN emery wheel refers to the class emery wheel made with the CBN abrasive material of Ultra-fine (≤5 μm) and bonding agent, this kind of emery wheel has lower surface roughness and surface damage than traditional emery wheel material, the precision of polishing, grinding is higher, more can improve component surface quality, be also an important directions of emery wheel industry development.
In production technology, due to the Ultra-fine of abrasive material, easily reunite between abrasive material, be deteriorated with the associativity of bonding agent, the emery wheel prepared so just very easily produces cut to surface of the work, affect workpiece quality, therefore, need in process of production to carry out pretreatment to ultra-fine abrasive material, improve compatibility and the dispersiveness of itself and binding agent, development is simultaneously applicable to the binding agent of ultra-fine grain diameter abrasive material, to obtain the finished product of low surface roughness.Also there is the shortcomings such as working (machining) efficiency is low, production cost is higher in the technology preparing Ultra-fine emery wheel at present, needs to improve further and optimizing raw material formula and preparation technology.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, dense form Ultra-fine CBN emery wheel providing a kind of high breathable insulation and preparation method thereof.
The present invention is achieved by the following technical solutions:
A dense form Ultra-fine CBN emery wheel for high breathable insulation, this emery wheel is made up of the raw material of following weight portion: expanded vermiculite powder 8-10, the binding agent 2-3 of CBN abrasive material 40-50, the nanometer zirconium silicate 2-3 of granularity≤5 μm, granularity≤5 μm, lithium bentonite 1-2, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5-0.8, polymine 0.4-0.5, shitosan 0.4-0.5, deionized water 60-65.
The dense form Ultra-fine CBN emery wheel of described a kind of high breathable insulation, described binding agent is made up of the raw material of following weight portion: solid content is that water-base fluorocarbon emulsion 12-15, the sodium alginate 4-5 of 40-45%, nano silicon 2-3, deionized water are appropriate; Its preparation method is: be dissolved in appropriate deionized water by sodium alginate, is stirred to it and dissolves completely, adds water-base fluorocarbon emulsion, nano silicon subsequently, and ultrasonic agitation is dispersed to material and mixes completely and be uniformly dispersed and get final product.
Dense form Ultra-fine CBN emery wheel of described a kind of high breathable insulation and preparation method thereof, its spy is, described preparation method is:
(1) first CBN abrasive material is dropped into dipping pretreatment 30-40min in hydrofluoric acid solution, filter subsequently, be washed to neutrality, drying for standby;
(2) kayexalate, polymine are dropped in deionized water, be stirred to after material dissolves completely, add the compound abrasive that step (1) obtains, be uniformly mixed, drop into other residual components except binding agent subsequently again, for subsequent use after leaving standstill 1-2h after being uniformly mixed 30-40min;
(3) by the dry process under 80-100 DEG C of condition of step (2) gained material, dried material is broken, cross 200-300 mesh sieve, screened material is mixed with binding agent, by mixed material ball milling dispersion 20-30min after being uniformly mixed, material is die-filling, shaping, the demoulding subsequently, obtain idiosome emery wheel, wherein briquetting pressure is 40-50MPa, subsequently idiosome emery wheel to be sent in the baking oven of 70-80 DEG C after dry 5-6h with the ramp of 4-5 DEG C/min to 230-250 DEG C, naturally cool to room temperature after insulation 4-5h and namely obtain this Ultra-fine CBN emery wheel.
The present invention first utilizes the CBN abrasive material of hydrofluoric acid to Ultra-fine to carry out pretreatment, abrasive surface after process is regular, smooth, impurity content is few, its mechanical property and and binding agent between cementability be all improved, and with kayexalate, abrasive material dispersiveness after the solution immersion treatment of the preparation such as polymine is good, not easily reunite, add shitosan, after the raw materials such as lithium bentonite, abrasive material is formed in the solution and does not precipitate, the stabilising system of flocculation, the expanded vermiculite powder added can improve the ventilative of emery wheel and thermal insulation, reduce temperature to the damage of emery wheel, wetability and the compatibility of dried powder and binding agent are better, adhesion strength is large, and the binding agent based on fluorocarbon resin makes, and wheel face is water-fast to bear dirty, be easy to cleaning, Ultra-fine CBN emery wheel green structure dense uniform prepared by the present invention, wear-and corrosion-resistant, grinding stress is low, can be applicable to high-precision metal parts grinding and uses.
Detailed description of the invention
This emery wheel is made up of the raw material of following weight portion: the expanded vermiculite powder 8 of the CBN abrasive material 40 of granularity≤5 μm, nanometer zirconium silicate 2, granularity≤5 μm, binding agent 2, lithium bentonite 1, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5, polymine 0.4, shitosan 0.4, deionized water 60.
Binding agent is wherein made up of the raw material of following weight portion: solid content be 40% water-base fluorocarbon emulsion 12, sodium alginate 4, nano silicon 2, deionized water appropriate; Its preparation method is: be dissolved in appropriate deionized water by sodium alginate, is stirred to it and dissolves completely, adds water-base fluorocarbon emulsion, nano silicon subsequently, and ultrasonic agitation is dispersed to material and mixes completely and be uniformly dispersed and get final product.
The preparation method of this emery wheel is:
(1) first CBN abrasive material is dropped into dipping pretreatment 30min in hydrofluoric acid solution, filter subsequently, be washed to neutrality, drying for standby;
(2) kayexalate, polymine are dropped in deionized water, be stirred to after material dissolves completely, add the compound abrasive that step (1) obtains, be uniformly mixed, drop into other residual components except binding agent subsequently again, for subsequent use after leaving standstill 1h after being uniformly mixed 30min;
(3) by the dry process under 80 DEG C of conditions of step (2) gained material, dried material is broken, cross 200 mesh sieves, screened material is mixed with binding agent, by mixed material ball milling dispersion 20min after being uniformly mixed, material is die-filling, shaping, the demoulding subsequently, obtain idiosome emery wheel, wherein briquetting pressure is 40MPa, subsequently idiosome emery wheel to be sent in the baking oven of 70 DEG C with the ramp to 230 DEG C of 4 DEG C/min after dry 5h, naturally cool to room temperature after insulation 4h and namely obtain this Ultra-fine CBN emery wheel.
The grinding wheel performance index that embodiment prepares is as follows:
Being ground material in test is tool steel, and grinding method is transverse grinding, emery wheel peripheral speed: 100m/s, the speed of table: 0.05m/s, grinding depth: 0.025mm.
The more traditional resin CBN wheel grinding of the emery wheel prepared of the present embodiment improves 260% than average, and the average currying work interval extends 6 times, extends more than 6 times service life.Through the grinding of 60min, the roughness of surface of the work is only 0.04 μm, and surface of the work is without burn, and maximum grinding speed can reach 132m/s.
Claims (3)
1. the dense form Ultra-fine CBN emery wheel of a high breathable insulation, it is characterized in that, this emery wheel is made up of the raw material of following weight portion: expanded vermiculite powder 8-10, the binding agent 2-3 of CBN abrasive material 40-50, the nanometer zirconium silicate 2-3 of granularity≤5 μm, granularity≤5 μm, lithium bentonite 1-2, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5-0.8, polymine 0.4-0.5, shitosan 0.4-0.5, deionized water 60-65.
2. the dense form Ultra-fine CBN emery wheel of a kind of high breathable insulation as claimed in claim 1, it is characterized in that, described binding agent is made up of the raw material of following weight portion: solid content is that water-base fluorocarbon emulsion 12-15, the sodium alginate 4-5 of 40-45%, nano silicon 2-3, deionized water are appropriate; Its preparation method is: be dissolved in appropriate deionized water by sodium alginate, is stirred to it and dissolves completely, adds water-base fluorocarbon emulsion, nano silicon subsequently, and ultrasonic agitation is dispersed to material and mixes completely and be uniformly dispersed and get final product.
3. the dense form Ultra-fine CBN emery wheel and preparation method thereof of a kind of high breathable insulation as claimed in claim 1, its spy is, described preparation method is:
(1) first CBN abrasive material is dropped into dipping pretreatment 30-40min in hydrofluoric acid solution, filter subsequently, be washed to neutrality, drying for standby;
(2) kayexalate, polymine are dropped in deionized water, be stirred to after material dissolves completely, add the compound abrasive that step (1) obtains, be uniformly mixed, drop into other residual components except binding agent subsequently again, for subsequent use after leaving standstill 1-2h after being uniformly mixed 30-40min;
(3) by the dry process under 80-100 DEG C of condition of step (2) gained material, dried material is broken, cross 200-300 mesh sieve, screened material is mixed with binding agent, by mixed material ball milling dispersion 20-30min after being uniformly mixed, material is die-filling, shaping, the demoulding subsequently, obtain idiosome emery wheel, wherein briquetting pressure is 40-50MPa, subsequently idiosome emery wheel to be sent in the baking oven of 70-80 DEG C after dry 5-6h with the ramp of 4-5 DEG C/min to 230-250 DEG C, naturally cool to room temperature after insulation 4-5h and namely obtain this Ultra-fine CBN emery wheel.
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| CN201510534194.8A CN105081989A (en) | 2015-08-27 | 2015-08-27 | Compact superfine granularity CBN grinding wheel with high breathability performance and high heat insulation performance and preparation method of compact superfine granularity CBN grinding wheel |
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| CN201510534194.8A CN105081989A (en) | 2015-08-27 | 2015-08-27 | Compact superfine granularity CBN grinding wheel with high breathability performance and high heat insulation performance and preparation method of compact superfine granularity CBN grinding wheel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182322A (en) * | 2016-07-25 | 2016-12-07 | 志邦厨柜股份有限公司 | A kind of radioprotective carbon fiber wood composite fibre board and preparation method thereof |
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| CN1597259A (en) * | 2004-09-08 | 2005-03-23 | 华侨大学 | Preparation method of diamond grinding polishing sheet |
| CN1903510A (en) * | 2006-08-03 | 2007-01-31 | 南京航空航天大学 | Freezing nanometer abrasive polishing pad and its prepn. method |
| US20100037530A1 (en) * | 2007-03-26 | 2010-02-18 | Yuji Yoshida | Synthetic grinding stone |
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| CN103786103A (en) * | 2014-01-10 | 2014-05-14 | 当涂县南方红月磨具磨料有限公司 | Toughened heat-resistant ceramic CBN (cubic boron nitride) grinding wheel |
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| CN106182322A (en) * | 2016-07-25 | 2016-12-07 | 志邦厨柜股份有限公司 | A kind of radioprotective carbon fiber wood composite fibre board and preparation method thereof |
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Application publication date: 20151125 |