CN105108663A - Self-lubrication ultra-fine-granularity CBN grinding wheel containing aquadag and preparation method of self-lubrication ultra-fine-granularity CBN grinding wheel - Google Patents
Self-lubrication ultra-fine-granularity CBN grinding wheel containing aquadag and preparation method of self-lubrication ultra-fine-granularity CBN grinding wheel Download PDFInfo
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- CN105108663A CN105108663A CN201510537524.9A CN201510537524A CN105108663A CN 105108663 A CN105108663 A CN 105108663A CN 201510537524 A CN201510537524 A CN 201510537524A CN 105108663 A CN105108663 A CN 105108663A
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Abstract
The invention discloses a self-lubrication ultra-fine-granularity CBN grinding wheel containing aquadag. In the preparation process of the grinding wheel, firstly, an ultra-fine-granularity fused dense corundum grinding material and an ultra-fine-granularity CBN grinding material are pre-treated, the mechanical property of the treated grinding materials and the connectivity of the grinding materials and a binder are improved, the dispersity of the materials treated through a solution prepared from sodium polystyrenesulfonate, polyethyleneimine and the like is good, agglomeration is not likely to happen, a non-precipitation and non-flocculation stable system is formed in the solution, the wettability and compatibility of dried powder and the binder are better, binding is tight and firm, and added aquadag powder has the good high-temperature lubricating property, heat conduction property, anti-corrosion property and the like; due to the fact that fluorocarbon resin is adopted as the binder, the surface of the grinding wheel is smoother and easy to clean, and waste chips are not likely to adhere to the surface of the grinding wheel. The prepared ultra-fine-granularity CBN grinding wheel has a certain self-lubrication property, the surface is not likely to be damaged, and the grinding wheel can be applied to grinding high-accuracy metal parts.
Description
Technical field
The present invention relates to Ultra-fine CBN emery wheel preparing technical field, particularly relate to Ultra-fine CBN emery wheel of a kind of self lubricity containing aquadag 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 Ultra-fine CBN emery wheel of a kind of self lubricity containing aquadag and preparation method thereof.
The present invention is achieved by the following technical solutions:
Containing the Ultra-fine CBN emery wheel of self lubricity for aquadag, this emery wheel is made up of the raw material of following weight portion: CBN abrasive material 35-40, the binding agent 2-3 of the electric smelting compact alumina abrasive material 12-14 of granularity≤5 μm, granularity≤5 μm, lithium bentonite 1-2, aquadag powder 8-10, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5-0.8, polymine 0.4-0.5, shitosan 1-1.5, deionized water 60-65.
The Ultra-fine CBN emery wheel of described a kind of self lubricity containing aquadag, 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.
Ultra-fine CBN emery wheel of described a kind of self lubricity containing aquadag and preparation method thereof, its spy is, described preparation method is:
(1) first electric smelting compact alumina abrasive material, CBN 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 electric smelting compact alumina abrasive material of Ultra-fine, CBN abrasive material carries out pretreatment, abrasive surface after process is regular, smooth, impurity content is few, its mechanical property and improving with the connectivity of binding agent, and with kayexalate, material dispersion 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, abrasive material is formed in the solution and does not precipitate, the stabilising system of flocculation, wetability and the compatibility of dried powder and binding agent are better, bonding close and firm, the aquadag powder added has good high temperature lubricating and heat conduction, the performance such as anticorrosion, the grinding performance of emery wheel can be improved, reduce workpiece damage, 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 prepared by the present invention has certain self lubricity, and surface is easy damaged not, 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 CBN abrasive material 35 of the electric smelting compact alumina abrasive material 12 of granularity≤5 μm, granularity≤5 μm, binding agent 2, lithium bentonite 1, aquadag powder 8, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5, polymine 0.4, shitosan 1, 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.
This emery wheel preparation method be:
(1) first electric smelting compact alumina abrasive material, CBN 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 330% than average, and the average currying work interval extends 8 times, extends more than 10 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 145m/s.
Claims (3)
1. the Ultra-fine CBN emery wheel containing the self lubricity of aquadag, it is characterized in that, this emery wheel is made up of the raw material of following weight portion: CBN abrasive material 35-40, the binding agent 2-3 of the electric smelting compact alumina abrasive material 12-14 of granularity≤5 μm, granularity≤5 μm, lithium bentonite 1-2, aquadag powder 8-10, hydrofluoric acid (concentration 40%) are appropriate, kayexalate 0.5-0.8, polymine 0.4-0.5, shitosan 1-1.5, deionized water 60-65.
2. the Ultra-fine CBN emery wheel of a kind of self lubricity containing aquadag 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. Ultra-fine CBN emery wheel and preparation method thereof of a kind of self lubricity containing aquadag as claimed in claim 1, its spy is, described preparation method is:
(1) first electric smelting compact alumina abrasive material, CBN 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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| CN201510537524.9A CN105108663A (en) | 2015-08-27 | 2015-08-27 | Self-lubrication ultra-fine-granularity CBN grinding wheel containing aquadag and preparation method of self-lubrication ultra-fine-granularity CBN grinding wheel |
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| CN201510537524.9A CN105108663A (en) | 2015-08-27 | 2015-08-27 | Self-lubrication ultra-fine-granularity CBN grinding wheel containing aquadag and preparation method of self-lubrication ultra-fine-granularity CBN grinding wheel |
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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 |
| CN102248166A (en) * | 2010-05-17 | 2011-11-23 | 刘小磐 | Electrode preparation process for depositing diamond abrasive tool with electric sparks |
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| 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 |
| CN104526577A (en) * | 2014-12-12 | 2015-04-22 | 郑州博特硬质材料有限公司 | Ceramic resin composite bonding agent grinding wheel and preparation method thereof |
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2015
- 2015-08-27 CN CN201510537524.9A patent/CN105108663A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102248166A (en) * | 2010-05-17 | 2011-11-23 | 刘小磐 | Electrode preparation process for depositing diamond abrasive tool with electric sparks |
| 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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| 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: 20151202 |