CN105196193A - High-flexibility ultrafine particle size CBN grinding wheel containing nano titanium nitride and preparation method thereof - Google Patents
High-flexibility ultrafine particle size CBN grinding wheel containing nano titanium nitride and preparation method thereof Download PDFInfo
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- CN105196193A CN105196193A CN201510537522.XA CN201510537522A CN105196193A CN 105196193 A CN105196193 A CN 105196193A CN 201510537522 A CN201510537522 A CN 201510537522A CN 105196193 A CN105196193 A CN 105196193A
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- grinding wheel
- emery wheel
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Abstract
The invention discloses a high-flexibility ultrafine particle size CBN grinding wheel containing nano titanium nitride. During the preparation process of the high-flexibility ultrafine particle size CBN grinding wheel, an ultrafine particle size CBN grinding material and a ceramic microcrystal grinding material are first preprocessed, so that the mechanical performance and surface performance are improved; the powder processed by a solution formed by sodium polystyrenesulfonate and polyethyleneimine is excellent in powder dispersity and unlikely to cluster, a stable system which is not precipitated or flocculated is formed in the solution, the wettability and compatibility of the dried powder with a binder are excellent, and the adhesion strength is large; by adding the raw materials such as nano titanium nitride, brucite fibers and the like, the strength and flexibility of the grinding wheel are effectively improved, and the effect for improving the flexibility is obvious; the surface of the grinding wheel is smoother by adopting fluorine-carbon resin as the binder, waste scraps are unlikely to adhere on the surface of the grinding wheel, and the grinding wheel is easy to clean; a prepared ultrafine particle size CBN grinding wheel blank is high in strength, smooth, compact, resistant to heat and abrasion, good in size stability and suitable for grinding high-precision metal components.
Description
Technical field
The present invention relates to Ultra-fine CBN emery wheel technical field, particularly relate to a kind of high-tenacity super fine granularity CBN emery wheel containing Nano titanium nitride 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, provides a kind of high-tenacity super fine granularity CBN emery wheel containing Nano titanium nitride and preparation method thereof.
The present invention is achieved by the following technical solutions:
Containing the high-tenacity super fine granularity CBN emery wheel of Nano titanium nitride, this emery wheel is made up of the raw material of following weight portion: ceramic microcrystalline abrasive material 16-18, the Nano titanium nitride 2-3 of the CBN abrasive material 35-40 of granularity≤5 μm, granularity≤5 μm, natural brucite fiber 4-5, caesium tungsten bronze nano powder 1-2, binding agent 2-3, lithium bentonite 0.8-1, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5-0.8, polymine 0.4-0.5, shitosan 0.8-1, deionized water 60-65.
Described a kind of high-tenacity super fine granularity CBN emery wheel containing Nano titanium nitride, 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.
Described a kind of high-tenacity super fine granularity CBN emery wheel containing Nano titanium nitride and preparation method thereof, its spy is, described preparation method is:
(1) first CBN abrasive material, ceramic microcrystalline abrasive material are 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 hydrofluoric acid to the CBN abrasive material of Ultra-fine, ceramic microcrystalline abrasive material carries out pretreatment, abrasive surface after process is regular, smooth, impurity content reduces, mechanical property improves, with the compatibility of binding agent and caking property better, with kayexalate, powder dispersity after the solution-treated of the preparation such as polymine is good, not easily reunite, add shitosan, after the raw materials such as lithium bentonite, formed in the solution and do not precipitate, the stabilising system of flocculation, after dry and the wetability of binding agent and compatibility better, adhesion strength is large, the Nano titanium nitride added, the raw materials such as brucite fiber effectively raise intensity and the toughness of emery wheel, activeness and quietness successful, and make wheel face more bright and clean using fluorocarbon resin as binding agent, not easily adhere to scrap, be easy to cleaning, Ultra-fine CBN emery wheel idiosome intensity prepared by the present invention is high, bright and clean densification, heat-resistant antifriction, good stability of the dimension, can be applicable to high-precision metal parts grinding and uses.
Detailed description of the invention
The emery wheel of this embodiment is made up of the raw material of following weight portion: the ceramic microcrystalline abrasive material 16 of the CBN abrasive material 35 of granularity≤5 μm, granularity≤5 μm, Nano titanium nitride 2, natural brucite fiber 4, caesium tungsten bronze nano powder 1, binding agent 2, lithium bentonite 0.8, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5, polymine 0.4, shitosan 0.8, 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, ceramic microcrystalline abrasive material are 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 340% than average, and the average currying work interval extends 8 times, extends more than 6 times service life.Through the grinding of 60min, the roughness of surface of the work is only 0.03 μm, and surface of the work is without burn, and maximum grinding speed can reach 140m/s.
Claims (3)
1. the high-tenacity super fine granularity CBN emery wheel containing Nano titanium nitride, it is characterized in that, this emery wheel is made up of the raw material of following weight portion: ceramic microcrystalline abrasive material 16-18, the Nano titanium nitride 2-3 of the CBN abrasive material 35-40 of granularity≤5 μm, granularity≤5 μm, natural brucite fiber 4-5, caesium tungsten bronze nano powder 1-2, binding agent 2-3, lithium bentonite 0.8-1, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5-0.8, polymine 0.4-0.5, shitosan 0.8-1, deionized water 60-65.
2. a kind of high-tenacity super fine granularity CBN emery wheel containing Nano titanium nitride 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. a kind of high-tenacity super fine granularity CBN emery wheel containing Nano titanium nitride and preparation method thereof as claimed in claim 1, its spy is, described preparation method is:
(1) first CBN abrasive material, ceramic microcrystalline abrasive material are 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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Citations (7)
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| US5178644A (en) * | 1992-01-23 | 1993-01-12 | Cincinnati Milacron Inc. | Method for making vitreous bonded abrasive article and article made by the method |
| CN1253963A (en) * | 1998-11-17 | 2000-05-24 | 不二见株式会社 | Grinding composite and potching composite |
| US6551366B1 (en) * | 2000-11-10 | 2003-04-22 | 3M Innovative Properties Company | Spray drying methods of making agglomerate abrasive grains and abrasive articles |
| CN1597259A (en) * | 2004-09-08 | 2005-03-23 | 华侨大学 | Preparation method of diamond grinding polishing sheet |
| CN102248166A (en) * | 2010-05-17 | 2011-11-23 | 刘小磐 | Electrode preparation process for depositing diamond abrasive tool with electric sparks |
| CN103846824A (en) * | 2014-02-11 | 2014-06-11 | 当涂县南方红月磨具磨料有限公司 | Cubic boron nitride grinding wheel with high abrasion resistance |
| CN104440619A (en) * | 2014-11-20 | 2015-03-25 | 云南光电辅料有限公司 | Method for improving processing finish degree of resin grinding wheel |
-
2015
- 2015-08-27 CN CN201510537522.XA patent/CN105196193A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178644A (en) * | 1992-01-23 | 1993-01-12 | Cincinnati Milacron Inc. | Method for making vitreous bonded abrasive article and article made by the method |
| CN1253963A (en) * | 1998-11-17 | 2000-05-24 | 不二见株式会社 | Grinding composite and potching composite |
| US6551366B1 (en) * | 2000-11-10 | 2003-04-22 | 3M Innovative Properties Company | Spray drying methods of making agglomerate abrasive grains and abrasive articles |
| CN1597259A (en) * | 2004-09-08 | 2005-03-23 | 华侨大学 | Preparation method of diamond grinding polishing sheet |
| CN102248166A (en) * | 2010-05-17 | 2011-11-23 | 刘小磐 | Electrode preparation process for depositing diamond abrasive tool with electric sparks |
| CN103846824A (en) * | 2014-02-11 | 2014-06-11 | 当涂县南方红月磨具磨料有限公司 | Cubic boron nitride grinding wheel with high abrasion resistance |
| CN104440619A (en) * | 2014-11-20 | 2015-03-25 | 云南光电辅料有限公司 | Method for improving processing finish degree of resin grinding wheel |
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Application publication date: 20151230 |