CN102470513A - Abrasive article with improved grain retention and performance - Google Patents
Abrasive article with improved grain retention and performance Download PDFInfo
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- CN102470513A CN102470513A CN2010800245066A CN201080024506A CN102470513A CN 102470513 A CN102470513 A CN 102470513A CN 2010800245066 A CN2010800245066 A CN 2010800245066A CN 201080024506 A CN201080024506 A CN 201080024506A CN 102470513 A CN102470513 A CN 102470513A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
- B24D3/28—Resins or natural or synthetic macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
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- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
An abrasive article with improved grain retention and performance and method of making are disclosed. The abrasive article with improved grain retention results in an article with improved performance and longer article life.
Description
Technical field
Present invention relates in general to abrasive article and more specifically relate to a kind of abrasive article with improved particle confining force and performance.
Background technology
Abrasive article typically be used in the different industry through cutting, grinding, grinding, or polishing workpiece is carried out machined.The purposes that is used for mach abrasive article is across a wide industrial scale from optical industry, automobile factory's maintenance industry to the made industry.Among in these examples each, manufacturing equipment uses abrasive material to remove product size, geometry and the surface characteristic (for example, flatness, surface roughness) that whole block material is designed to reach.
The challenge that the manufacturers of coarse grinding abrasive article constantly face is to produce the abrasive article of the more high production rate of client's appointment of satisfying them together with high performance requirements.The challenge why manufacturer faces is to produce thisly to satisfy high production rate more and be together with a concrete reason of the coarse grinding abrasive article of performance requirement; These abrasive articles not only are subjected to because the mechanical failure of the fracture of abrasive grain or abrasion or binding agent fracture; But also be subjected at the thermal failure at the interface (that is, particle deviates from) of abrasive grain with the organic binder bond that surrounds them.Particularly, relevant with coarse grinding abrasive article, as under the situation of any cooling agent of not removing heat, to remove material high power makes these article be more prone to the inefficacy of the latter type thermal degradation of abrasive grain and binder interface place (that is).When use showed favorable mechanical and breaks the abrasive grain of tolerance, this thermal degradation was even is more tangible.At last, thermal degradation makes these coarse grinding abrasive article die down, thereby has damaged performance and finally caused the shorter life-span.For ultra-thin dry type cutting wheel, thermal degradation possibly be especially problematic, and these cutting wheels are easy to very rapidly reach thermal degradation temperature at the interface in particle/binder.
Summary of the invention
In one embodiment, have a kind of cutting wheel of ultra-thin minor diameter, this cutting wheel comprises: a plurality of abrasive grains, a kind of organic binder material and a kind of reinforcing filler material.This reinforcing filler material comprises a kind of active heat absorption filler material of effective dose, and this activity heat absorption filler material provides a kind of endothermic reaction normal doing under the cutting condition.
In one second embodiment; The cutting wheel that has a kind of ultra-thin minor diameter; This cutting wheel comprises a plurality of abrasive grains and a kind of organic binder material, and this organic binder material comprises adds a kind of active heat absorption filler material wherein, that a kind of endothermic reaction is provided to.The value of this activity heat absorption filler material be in this binding agent about by volume percent 12 to about percent 50 scope.
In one the 3rd embodiment; There is a kind of cutting wheel ultra-thin, minor diameter; This cutting wheel comprises a plurality of abrasive grains and a kind of organic binder material, and a kind of active heat absorption filler material is added to wherein so that a kind of endothermic reaction that improves the particle confining force to be provided.These a plurality of abrasive grains are to be selected from down group, and this group is made up of the following: add crystal seed or unseeded sol-gel alumina particles, Al2O3-ZrO2 particle and their multiple combination.This activity heat absorption filler material can be to be selected from down group, and this group is made up of the following: sulfide-based, low-melting oxide-based and their multiple combination.
Description of drawings
Fig. 1 is the image according to the abrasive article of one embodiment of the invention;
Fig. 2 according to prior art, show the micro-image of the abrasive article of being deviate from a large number particle, a routine; And
Fig. 3 is the micro-image according to an abrasive article of one embodiment of the invention formation.
The specific embodiment
Referring to accompanying drawing, Fig. 1 is the image according to the abrasive article 100 of one embodiment of the invention.Particularly, to show this abrasive article 100 are a kind of abrasive wheel products to Fig. 1.As known in this area, the abrasive wheel product exists with multiple size, for example as the cutting and grinding wheel product of large diameter cutting and grinding wheel product, intermediate diameters and the cutting and grinding wheel product of minor diameter.Generally; The diameter that large diameter cutting and grinding wheel product has is greater than about 1000mm; The diameter that the cutting and grinding wheel product of intermediate diameters has is greater than about 400mm and less than about 1000mm, and the diameter that the cutting and grinding of minor diameter wheel product has is less than about 400mm.Although following being used for forms that the explanation of the abrasive mixture of abrasive article 100 preferably is suitable for the cutting and grinding wheel product of minor diameter and more specifically be the cutting and grinding wheel that has less than the ultra-thin minor diameter of about 250mm diameter, those of ordinary skill in the art will appreciate that the abrasive mixture that is used for forming abrasive article 100 takes turns product for the cutting and grinding of large diameter cutting and grinding wheel product and intermediate diameters and can have application equally.
In one embodiment; Abrasive article 100 be a kind of by abrasive mixture formed ultra-thin, minor diameter, the bonding abrasive article; These abrasive mixtures comprise abrasive grain and a kind of organic binder material, and reinforcing filler material (like one or more active heat absorptivity filler materials) is added to wherein.This or these active heat absorption filler materials provide at the interface the temperature of a kind of endothermic reaction to reduce particle and to surround their organic binder bond " doing under the cutting condition normally ".Generally, the reinforcing filler abrasive material that can be used for boning is to strengthen nonferromagnetic substance.Reinforcing filler is also referred to as reactive filler, and being designed to is physics and/or chemically active.They provide cutting speed prolongation, that increase and the cutting of cool attitude generally.Depend on different parameters, the for example type of the size of milling tool and geometry, employed particle and binding agent and the operating condition that is run into, reinforcing filler can carry out in following one or multinomial:
1.) reduce abrasive grain and the just friction between polished workpiece;
2.) prevent that abrasive grain from " adding cap ", that is, prevent that metallic particles is welded to the top of these abrasive grains gradually.
3.) the interface temperature between reduction abrasive grain and the workpiece.
4.) reduce desired abrasive power.
These effects can fall into following mechanism of different generally:
1.) lubrication reduces the friction between abrasive grain and the workpiece.
2.) the chemical attack of metal surface prevents that metal is bonded to the top of abrasive grain or prevents that chip particles is welded on the workpiece, perhaps changes to assist the formation of smear metal through the integrality to the metal surface.
3.) prevent that binding agent from peeling off, abrasive grain is firmly remained on original position through the free-radical oxidation process (freeradical process of oxidation) that suppresses employed binding agent.
4.) controlled binding agent corrodes, and allows new particle to begin to work and discharges the abrasive grain of old wearing and tearing.
5.) the dissipation of heat through the high level endothermic reaction, this helps away from the heat that dissipates of the lapped face between abrasive grain and the workpiece.
As illustrated at this; Use the activity heat absorption filler material of at least a type to cause improved particle confining force and use, the activity heat absorption filler material of this at least a type provides at the interface the temperature of a kind of endothermic reaction to reduce abrasive grain and to surround their organic binder bond " doing under the cutting condition normally ".A result of improved particle confining force compares the ultra-thin cutting and grinding wheel product that other the abrasive mixture by routine forms, and abrasive article 100 has improved cutting performance and longer life-span.
In this embodiment, abrasive article 100 comprises the elementary abrasive grain of at least a type, and these elementary abrasive grains are to be selected from by group that add crystal seed or the abrasive material family that unseeded sol-gel alumina and Al2O3-ZrO2 form.The inventory of a non-limit of the operable in embodiments of the invention abrasive grain from sol-gel alumina that add crystal seed or unseeded family comprises: SG particle and NQ particle; From the Saint-GobainAbrasives in Massachusetts, United States Wu Site city, Inc. is commercially available; 3M321 Cubitron particle and 3M324 Cubitron particle, both are all commercially available from the 3M Corporation of Saint Paul City, State of Minnesota, US; And their multiple combination.The inventory of a non-limit of the operable in embodiments of the invention abrasive grain from Al2O3-ZrO2 family: comprise NZ Plus particle, from the Saint-Gobain Abrasives in Massachusetts, United States Wu Site city, Inc. is commercially available; ZF particle and ZS particle, all from the Saint-Gobain Abrasives in Massachusetts, United States Wu Site city, Inc is commercially available for both; The ZK40 particle, from the Treibacher Industry in Toronto, Ontario, Canada city, Inc. is commercially available; And ZR25B particle and ZR25R particle, all from the Alcan of Montreal, Quebec, Canada, Inc. is commercially available for both.In one embodiment, the value of elementary abrasive grain account for this abrasive grain total amount value about by volume percent 20 to about percent 100 between.
In one embodiment, can be with the realization cost also or performance demands with the secondary abrasive grain of at least a type and this elementary abrasive grain blend.This secondary abrasive grain can be selected from down group, and this group is made up of the following: oxide ceramic class (Al2O3 of consolidation that for example apply or non-coating, monocrystalline Al2O3), nitride-based (for example Si3N4, AlN) and carbon compound (for example, SiC).In one embodiment, the scope of the value of secondary abrasive grain can for the abrasive grain total amount value by volume or counterweight meter from about percent 80 to about percent 0.
In one embodiment; This organic binder material mainly is made up of the organic binder material of approval in the row; For example; One or more organic resin classes, for example epoxy resin, mylar, phenolic resins and cyanate resin lipid, perhaps other suitable thermosetting or type thermoplastic resins.The example of operable specific nonrestrictive resin comprises following: by Dynea O y; Finland is what sell under the Prefere in trade name, and under catalogue/production number 8522G, 8528G, 8680G and 8723G obtainable resin; By Hexion Specialty Chemicals, OH sells under trade name Rutaphen.RTM, and under catalogue/production code member 9507P, 8686SP and SP223 obtainable resin; And by Durez Corporation, TX is at following catalogue/production number: the resin of 29344, selling for 29346 and 29722 times.In one embodiment, this binder material comprises a kind of dried resin material.
In different embodiments, can select so that under " doing the cutting condition normally ", the endothermic reaction is provided absorb heat type and the value of filler of activity.Term " normally do cutting condition " is meant generally in the dried cutting process of the common materials of the wheel that designs for cutting/grinding, those conditions that run at the interface in the particle/binder of minor diameter, ultra-thin cutting wheel.The activity heat absorption filler material of " effective dose " provides a kind of endothermic reaction normal doing under the cutting condition.These conditions typically comprise the thermal degradation temperature that very rapidly spreads to surpassing 450 ℃.With respect to ultra-thin, dry type cutting wheel, thermal degradation especially can be problematic, and these cutting wheels tend to very rapidly shift heat at the interface and reach thermal degradation temperature in particle/binder.In the application's ultra-thin the wheel; These active heat absorption fillers have produced a kind of endothermic reaction under the condition that the typical case runs in the dry type cutting process; And therefore reduced particle/binder temperature at the interface, thereby caused the particle confining force of significant improvement and longer life-span.In different alternate embodiment; When particle/binder temperature at the interface is at least about 450 ℃; Or at least about 500 ℃; Or during at least about 527 ℃, perhaps comparing under the temperature that more substantial heat energy is provided with the essential activation energy of filler degraded that activity is absorbed heat, these active heat absorption fillers provide a kind of endothermic reaction.Notably, if when firing rate slowly or the particle/binder interface temperature cross when low, the endothermic reaction can take place; Thus, the thickness of abrasive article can play effect in obtaining the desirable endothermic reaction.
In one embodiment, a kind of activity heat absorption filler material of at least a type of the endothermic reaction being provided is the group that is selected from the filler type of being made up of sulfide and low-melting oxide.The inventory of a non-limit of the operable in embodiments of the invention activity heat absorption filler from sulfur compound comprises: pyrite, zinc sulphide, copper sulfide and their multiple combination.The inventory of a non-limit of the operable in embodiments of the invention activity heat absorption filler from low-melting oxide type comprises: bismuth oxide, lead oxide, tin oxide and their combination.Notice that in one embodiment preferably having the fusing point that the reinforcing filler of low-melting oxide has is to be lower than about 1000 degrees centigrade.
Those of ordinary skill in the art will recognize, filler that can other are different goes into to add in this organic binder material with the cutting that improves abrasive article 100, grinding, grinding, or the ability of polishing.These fillers can comprise activity and/or inactive filler.The inventory of a non-limit of active additive can comprise: ice crystal, PAF, KBF4, K2SO4, NaCl/KCl and their multiple combination.The inventory of a non-limit of inactive filler can comprise: CaO, CaCO3, Ca (OH) 2, CaSiO3, kyanite (a kind of Al2O3-SiO2 mixture), saran (polyvinylidene chloride), nepheline (Na, K) AlSiO4, timber powder, coconut shell powder, stone flour, feldspar, kaolin, quartz, short glass fiber, asbestos fibre, ballotini, surface-treated fine powder (carborundum, corundum etc.), float stone, cork powder and their multiple combination.In a preferred embodiment, can with a kind of reinforcing filler material for example PAF (mixture of K3AlF6 and KAlF4) join this organic binder material with corroding metal and reduce the friction between wheel and the workpiece.
In certain embodiments, it is following to be used for forming the prescription of abrasive mixture of abrasive article 100.The scope of the abrasive grain that in this mixture, exists in one embodiment, can be by the stereometer of this total mixture (that is, getting rid of porosity) from about percent 35 to about percent 55.The scope of the abrasive grain that in this mixture, exists in another embodiment, can be by the stereometer of this total mixture (that is, getting rid of porosity) from about percent 40 to about percent 54.In one embodiment, the scope of the organic binder material in this mixture (for example, resin) can be by the stereometer of this total mixture from about percent 25 to about percent 45.In another embodiment, the scope of the organic binder material in this mixture (for example, resin) can be by the stereometer of this total mixture from about percent 30 to about percent 40.In one embodiment, the scope of the value of the activity in this mixture heat absorption filler material (value in total mixture) meter from about percent 5 to about percent 30 by volume.In another embodiment, the scope of the value of the activity in this mixture heat absorption filler material (value in total mixture) meter from about percent 5 to about percent 24 by volume.In other embodiments, the scope of the value of the activity in this mixture heat absorption filler material (value in total binding agent) meter from about percent 12 to about percent 50 by volume.In other embodiments simultaneously, the scope of the value of the heat absorption of the activity in this mixture filler material (value in total binding agent) meter from about percent 12 to about percent 35 by volume.Surplus is other fillers, and these fillers can comprise active or inactive filler.In one embodiment, the reinforcing filler material of the endothermic reaction and the volume ratio of this organic binder material being provided is to be in about 0.136 to about 1 scope (for example, resin).In another embodiment, the reinforcing filler material of the endothermic reaction and the volume ratio of this organic binder material being provided is to be in about 0.136 to about 0.67 scope (for example, resin).
As above-mentioned, in one embodiment, abrasive article 100 is that a kind of cutting and grinding ultra-thin, minor diameter is taken turns product.In certain embodiments, the scope of the diameter that abrasive article 100 has is from about 75mm to about 250mm, and thickness is less than about 2.5mm.In other embodiments, this thickness of taking turns is between about 0.8mm and about 2.2mm.In different embodiments, this scope of taking turns the draw ratio that can have is from about 40 to about 160.These sizes make abrasive article 100 ultra-thin, minor diameter be suitable for very much the dry type cutting and use.The size of wheel and composition can be selected so that significant improvement in performance to be provided according to this teachings.
As illustrated at this, a large amount of particle that the abrasive article that is formed by above-mentioned prescription can not be subjected to as conventional abrasive article is deviate from.The abrasive article that is formed by the prescription of routine receives the adverse effect that a large amount of particles is deviate from; Because the bonding in these mixtures between abrasive grain and the binder material can not be resisted thermal degradation, this thermal degradation is to produce from the heat input relevant with the dissection of abrasive article.According to different embodiments of the present invention, confirmed at these particles on the surface level of abrasive article and to surround temperature at the interface between their organic binder bond be the highest and its scope can be from about 600 degrees centigrade to about 1000 degrees centigrade.This organic binder material can be used as separation layer owing to its low pyroconductivity (that is, less than 2W/ (m-K)), and therefore can not penetrate the degree of depth of this abrasive article in fact from the heat input of dissection, and wherein other layers of abrasive material are positioned at this.Therefore, the temperature that is positioned at these lower levels at the interface (can be from 250 degrees centigrade to 350 degrees centigrade) at these particles and their organic binder bond of encirclement comes down to the temperature at the interface less than top surface.Because these particles are very high with the temperature at the interface of the organic binder bond that surrounds them on surface level; More weak (the typical heat degradation temperature of organic binder material (like resin) is 500 degrees centigrade) and final granule are deviate from from the surface on this level and are dropped so binding agent becomes, rather than stably are worn through through typical abrasion process.The abrasive article that forms from above-mentioned prescription is subjected to smaller particles to be deviate from, because it receives particle less with the adverse effect of the thermal degradation at the interface of the binder material that surrounds them (because the endothermic reaction that takes place has reduced the temperature at interface).
Compared with prior art; Can not receive the adverse effect of particle and the thermal degradation at the interface of the organic binder material of surrounding them according to the abrasive article of a plurality of embodiments of the present invention, this is owing to the size of wheel carried out confirming and having prepared the abrasive grain and the active heat absorption filler of particular type.Particularly, have been found that at this using the reinforcing filler role in above prescription of pointing out is the thermal degradation that improves reinforcing filler, these reinforcing fillers have caused a kind of cooling effect that has reduced the temperature at the interface of abrasive grain and binding agent.This has offset the tendency that thermal degradation spreads has taken place.Except in the above prescription of pointing out, having used these reinforcing fillers that the endothermic reaction is provided, selection and the preparation of also having found the abrasive grain of above evaluation caused comparing with the abrasive article of routine and had a kind of abrasive product that remarkable littler particle is deviate from.
Fig. 2 is an a kind of micro-image of abrasive article 200 of routine, shows the hole 210 that a large amount of particles is deviate from.Attention is in order more easily to show, only outstandingly shown the hole 210 that few particle is deviate from.The more careful observation of image 200 shows this abrasive article that forms according to prior art and has the hole 210 that very a large amount of particles is deviate from.Having a kind of abrasive article in the hole that this many particles deviate from can not good operation and therefore will have the shorter life-span.
Compare with the abrasive article of the routine shown in Fig. 2, Fig. 3 shows a micro-image of the abrasive article 300 that forms according to embodiment of the present invention.As shown in Fig. 3, the abrasive article that forms according to embodiment of the present invention is compared with the conventional abrasive article shown in Fig. 2 has the hole that particle is significantly still less deviate from.Although be not all outstanding demonstrations in Fig. 3 of hole that all particles are deviate from, be clear that the hole that this figure exists particle significantly still less to deviate from than Fig. 2.
Because the abrasive article among Fig. 3 has the hole that particle is significantly still less deviate from, so as this article described here than conventional abrasive article carry out ground cutting operation better and the duration longer.A kind of performance measurement of abrasive article is absolute G ratio.Like absolute G ratio described here is to realize that through this abrasive article being installed on the portable machine that is used for dry type cutting application this machine has the maximum operating speed of about 80m/s.A kind of workpiece material with typical sizes (for example, 600mm (length) * 100 (wide) * 6 (thick) mm) can be clamped by a vice.Then to counting from the number of the part of workpiece material cutting and recording the computer system together with the diameter of abrasive article.Experienced then operator carries out cutting operation through the use grinding machine and manually makes an experiment on workpiece material.The data collecting system that is connected with this grinding machine has been monitored power and the electric current and the clipping time of the grinding machine in process of the test.Test duration is fallen by full consumption until abrasive article.Then the diameter of the article tested is measured and record.Weight together with to remaining workpiece material is carried out weighing and record.Use the computer system of commercially available software application to confirm material removing rate (MRR) and wheel wear rate (WWR).This application is through calculating absolute G ratio to MRR divided by WWR.The performance of the clear abrasive article of higher absolute G ratio table is better.
G ratio (it is the ratio of the absolute G ratio of abrasive article B divided by the absolute G ratio of abrasive article A (reference substance)) is used to the performance of comparison abrasive article at this relatively.Therefore, the relative G ratio of abrasive article A is 1.Higher relative G ratio shows and has obtained the more performance improvement.Make in this way, confirmed to have relative G ratio greater than 1.00 at the abrasive article that this prescription of pointing out more than use forms.Following example shows the relative G rate value of the scope from about 1.4 to about 2.4 that might obtain.
Instance
The instantiation of the abrasive article that forms according to the embodiment in this explanation below is provided.
Instance 1:
In this instance, the prescription of pointing out more than the use has formed a kind of abrasive article.To join in the mixer with the Al2O3-ZrO2 abrasive grain of about 44lbs of the monocrystalline Al2O3 abrasive grain blend of about 25lbs.At least a Working liquids is incorporated in these particles.At this, the liquid resin of about 5lbs is joined in the abrasive grain.The PAF of the powdex of about 11 lbs, about 6 lbs and the pyrite of about 9lbs prepare in a mixer that separates.The abrasive grain and the mixture of liquid resin are injected in this container that separates to mix with powdex, PAF and pyrite mixture.Form abrasive article with the method identical with the abrasive article of routine then, for example as at U.S. Patent number 6,866, the formation method described in 691 B1 is combined in this with it by reference in full with it.The size of abrasive article is diameter 125mm thickness 1mm.The performance of the abrasive article that uses above prescription is tested and its relative G ratio (comparing with abrasive article conventional under identical size) is 2.2.The improvement of this performance is due to the fact that promptly pyritous thermal degradation has reduced at the interface the temperature of abrasive grain with the organic binder bond that surrounds them, thereby has caused improved particle confining force and longer life-span.Although the restriction of the theory that this disclosure does not receive to be proposed is considered when temperature is higher than 527 degrees centigrade, pyritous degraded is because high activation energy forms the process of taking as the leading factor.
Instance 2:
In this instance, the prescription of pointing out more than the use has formed a kind of abrasive article.With about 68 lbs add crystal seed or unseeded collosol and gel Al2O3 abrasive grain join in the mixer.At least a Working liquids is incorporated in this particle.At this, the liquid resin of about 5 lbs is joined in this abrasive grain.The PAF of the powdex of about 11 lbs, about 6 lbs and the pyrite of about 10 lbs are prepared in a mixer that separates.The abrasive grain and the mixture of liquid resin are poured in this container that separates to mix with powdex, PAF and pyrite mixture.Formed abrasive article then, and it has been tested with the method identical with the abrasive article of above-mentioned routine.The size of abrasive article is diameter 125mm, thickness 1mm in this instance.Its relative G ratio is 1.6.The improvement in performance that is produced is due to the fact that promptly, pyritous thermal degradation has reduced at the interface the temperature of abrasive grain with the organic binder bond that surrounds them, thereby has caused improved particle confining force and longer life-span.
Below providing not is the comparison example of basis at the abrasive article of the embodiment formation of this explanation.
Comparison example 1:
In this instance, the abrasive grain of pointing out more than the use, but be to use the different activity filler, formed a kind of abrasive article.Particularly, will join in the mixer with the Al2O3-ZrO2 abrasive grain of about 44 lbs of the monocrystalline Al2O3 abrasive grain blend of about 25 lbs.At this, the liquid resin of about 5 lbs is joined in this abrasive grain.Only difference is only one type reinforcing filler between the prescription of the prescription of this instance and above instance 1, and PAF is in this binder formula.That is to say in this prescription, do not have pyrite.Particularly, the powdex of about 11 lbs and the PAF of about 13lbs are prepared in a mixer that separates.The abrasive grain and the mixture of liquid resin poured in this container that separates mix with mixture with powdex and PAF.Formed abrasive article then and with it to test with the identical method that instance 1 is described.The size of abrasive article is diameter 125mm, thickness 1mm in this sample.The relative G ratio that is produced (under identical size, comparing with the abrasive grain of routine) is 1.1.The life-span of abrasive article or particle confining force be not as obtaining the improvement of same levels, because the endothermic reaction does not take place in cutting process in the instance 1.
Although this disclosure has combined its preferred a plurality of embodiments to show particularly and has been illustrated, will be appreciated that those of ordinary skill in the art will expect multiple variant and modification.Therefore, be understood that accompanying claims is intended to cover all such modifications and the change within the true spirit that falls into this disclosure.
Claims (54)
1. the cutting wheel of a ultra-thin minor diameter; Comprise: a plurality of abrasive grains, a kind of organic binder material and a kind of reinforcing filler material; Wherein this reinforcing filler material comprises a kind of active heat absorption filler material of effective dose, and this activity heat absorption filler material provides a kind of endothermic reaction normal doing under the cutting condition.
2. cutting wheel according to claim 1, wherein these a plurality of abrasive grains are to be selected from down group, this group is made up of the following: add crystal seed or unseeded sol-gel alumina particles and Al2O3-ZrO2 particle and their multiple combination.
3. cutting wheel according to claim 1, wherein these a plurality of abrasive grains are to be selected from down group, this group is made up of the following: SG, NQ, 3M321,3M324, NZ Plus, ZF, ZS, ZK40, ZR25B, ZR25R and their multiple combination.
4. cutting wheel according to claim 1, wherein the scope that exists of these a plurality of abrasive grains be by volume/total mixture meter about percent 35 is to about percent 55.
5. cutting wheel according to claim 1; Wherein these a plurality of abrasive grains comprise a kind of elementary abrasive grain and a kind of secondary abrasive grain; This elementary abrasive grain is to be selected from down group; This group is made up of the following: add crystal seed or unseeded sol-gel alumina particles, Al2O3-ZrO2 particle and their multiple combination, and this primary granule account for this abrasive grain total amount value about by volume percent 20 to about percent 100 between.
6. cutting wheel according to claim 1, wherein this organic binder material comprises a kind of dried resin material.
7. cutting wheel according to claim 1, wherein the scope that exists of this organic binder material be by volume/total mixture meter about percent 25 is to about percent 45.
8. cutting wheel according to claim 1 should activity heat absorption filler material be the group that is selected from the filler type of being made up of sulfide and low-melting oxide wherein.
9. cutting wheel according to claim 8 should activity heat absorption filler material be to be selected from down group wherein, and this group is made up of the following: pyrite, zinc sulphide, copper sulfide, lead oxide, tin oxide, bismuth oxide and their multiple combination.
10. cutting wheel according to claim 1, wherein this reinforcing filler material comprises: ice crystal, PAF, KBF4, K2SO4 and NaCl/KCl and their multiple combination.
11. cutting wheel according to claim 10, wherein should activity the scope that exists of heat absorption filler material be to about percent 100 by the stereometer of the total amount value of this reinforcing filler material about percent 25.
12. cutting wheel according to claim 1, wherein should activity the scope that in this binder material, exists of heat absorption filler material be about by volume percent 12 to about percent 50.
13. cutting wheel according to claim 1, wherein should activity the volume ratio of heat absorption filler material and this organic binder material be to be positioned at about 0.136 to about 1 scope.
14. cutting wheel according to claim 1, wherein this cutting wheel comprises the diameter of scope from about 75mm to about 250mm.
15. cutting wheel according to claim 1, wherein this cutting wheel comprises the thickness less than about 2.5mm.
16. cutting wheel according to claim 15, wherein this thickness is between about 0.8mm and about 2.2mm.
17. cutting wheel according to claim 1, wherein this cutting wheel comprises the draw ratio of scope from about 40 to about 160.
18. cutting wheel according to claim 1, wherein this cutting wheel comprises a kind of abrasive wheel.
19. cutting wheel according to claim 18, wherein this abrasive wheel is used to dry type cutting application, and wherein thermal degradation is a kind of main product abrasion mechanism.
20. cutting wheel ultra-thin, minor diameter; Comprise: a plurality of abrasive grains and a kind of organic binder material; This organic binder material comprises adds a kind of active heat absorption filler material on it, that the endothermic reaction is provided to, the value of this activity heat absorption filler material be in this binding agent about by volume percent 12 to about percent 50 scope.
21. cutting wheel according to claim 20, wherein these a plurality of abrasive grains are to be selected from down group, and this group is made up of the following: add crystal seed or unseeded sol-gel alumina particles and Al2O3-ZrO2 particle and their multiple combination.
22. cutting wheel according to claim 20, wherein these a plurality of abrasive grains are to be selected from down group, and this group is made up of the following: SG, NQ, 3M321,3M324, NZ Plus, ZF, ZS, ZK40, ZR25B, ZR25R and their multiple combination.
23. cutting wheel according to claim 20, wherein the scope that exists of these a plurality of abrasive grains be by volume/total mixture meter about percent 35 is to about percent 55.
24. cutting wheel according to claim 20; Wherein these a plurality of abrasive grains comprise a kind of elementary abrasive grain and a kind of secondary abrasive grain; This elementary abrasive grain is to be selected from down group; This group is made up of the following: add crystal seed or unseeded sol-gel alumina particles, Al2O3-ZrO2 particle and their multiple combination, and this primary granule account for this abrasive grain total amount value about by volume percent 20 to about percent 100 between.
25. cutting wheel according to claim 24, wherein this secondary abrasive grain is to be selected from down group, and this group is made up of the following: oxide ceramic class, nitride-based and carbon compound.
26. cutting wheel according to claim 20, wherein this organic binder material comprises a kind of dried resin material.
27. cutting wheel according to claim 20, wherein the scope that exists of this organic binder material be by volume/total mixture meter about percent 25 is to about percent 45.
28. cutting wheel according to claim 20 should activity heat absorption filler material be the group that is selected from the filler type of being made up of sulfide and low-melting oxide wherein.
29. cutting wheel according to claim 28 should activity heat absorption filler material be to be selected from down group wherein, this group is made up of the following: pyrite, zinc sulphide, copper sulfide, lead oxide, tin oxide, bismuth oxide and their multiple combination.
30. cutting wheel according to claim 28, wherein should activity the volume ratio of heat absorption filler material and this organic binder material be to be in about 0.136 to about 1 scope.
31. cutting wheel according to claim 20, wherein this cutting wheel comprises the diameter of scope from about 75mm to about 250mm.
32. cutting wheel according to claim 20, wherein this cutting wheel comprises the thickness less than about 2.5mm.
33. cutting wheel according to claim 32, wherein this thickness is between about 0.8mm and about 2.2mm.
34. cutting wheel according to claim 20, wherein this cutting wheel comprises the draw ratio of scope from about 40 to about 160.
35. cutting wheel according to claim 20, wherein this cutting wheel comprises a kind of abrasive wheel.
36. cutting wheel according to claim 35, wherein this abrasive wheel is used to dry type cutting application, and wherein thermal degradation is a kind of main product abrasion mechanism.
37. cutting wheel ultra-thin, minor diameter; Comprise: a plurality of abrasive grains and a kind of organic binder material; A kind of active heat absorption filler material is added to wherein so that a kind of endothermic reaction that improves the particle confining force is provided; Wherein these a plurality of abrasive grains are to be selected from down group; This group is made up of the following: add crystal seed or unseeded sol-gel alumina particles, Al2O3-ZrO2 particle and their multiple combination, and should activity heat absorption filler material be to be selected from down group wherein, this group be made up of the following: sulfide-based, low-melting oxide-based and combination that they are multiple.
38. according to the described cutting wheel of claim 37, wherein these a plurality of abrasive grains are to be selected from down group, this group is made up of the following: SG, NQ, 3M321,3M324, NZ Plus, ZF, ZS, ZK40, ZR25B, ZR25R and their multiple combination.
39. according to the described cutting wheel of claim 37, wherein the scope that exists of these a plurality of abrasive grains be by volume/total mixture meter about percent 35 is to about percent 55.
40. according to the described cutting wheel of claim 37; Wherein these a plurality of abrasive grains comprise a kind of elementary abrasive grain and a kind of secondary abrasive grain; This elementary abrasive grain is to be selected from down group; This group is made up of the following: add crystal seed or unseeded sol-gel alumina particles, Al2O3-ZrO2 particle and their combination, and this primary granule account for the abrasive grain total amount value about by volume percent 20 to about percent 100 between.
41. according to the described cutting wheel of claim 40, wherein this secondary abrasive grain is to be selected from down group, this group is made up of the following: oxide ceramic class, nitride-based and carbon compound.
42. according to the described cutting wheel of claim 37, wherein this organic binder material comprises a kind of dried resin material.
43. according to the described cutting wheel of claim 37, wherein the scope that exists of this organic binder material be by volume/total mixture meter about percent 25 is to about percent 45.
44. according to the described cutting wheel of claim 37, should activity heat absorption filler material be to be selected from down group wherein, this group be made up of the following: pyrite, zinc sulphide, copper sulfide, lead oxide, tin oxide, bismuth oxide and their multiple combination.
45. according to the described cutting wheel of claim 37, wherein should activity the scope that in this binder material, exists of heat absorption filler material be about by volume percent 12 to about percent 50.
46. according to the described cutting wheel of claim 37, wherein should activity the volume ratio of heat absorption filler material and this organic binder material be about 0.136 to about 1 scope.
47. according to the described cutting wheel of claim 37, wherein this cutting wheel comprises the diameter of scope from about 75mm to about 250mm.
48. according to the described cutting wheel of claim 37, wherein this cutting wheel comprises the thickness less than about 2.5mm.
49. according to the described cutting wheel of claim 48, wherein this thickness is between about 0.8mm and about 2.2mm.
50. according to the described cutting wheel of claim 37, wherein this cutting wheel comprises the draw ratio of scope from about 40 to about 160.
51. according to the described cutting wheel of claim 37, wherein this cutting wheel comprises a kind of abrasive wheel.
52. according to the described cutting wheel of claim 51, wherein this abrasive wheel is used to dry type cutting application, wherein thermal degradation is a kind of main product abrasion mechanism.
53. according to each described cutting wheel in the above claim, wherein this abrasive wheel comprises a kind of inactive filler material.
54. according to the described cutting wheel of claim 53, wherein this inactive filler material comprises: CaO, CaCO3, Ca (OH) 2 and their multiple combination.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17424009P | 2009-04-30 | 2009-04-30 | |
| US61/174240 | 2009-04-30 | ||
| US12/768107 | 2010-04-27 | ||
| US12/768,107 US20110111678A1 (en) | 2009-04-30 | 2010-04-27 | Abrasive article with improved grain retention and performance |
| PCT/US2010/032659 WO2010126934A2 (en) | 2009-04-30 | 2010-04-28 | Abrasive article with improved grain retention and performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102470513A true CN102470513A (en) | 2012-05-23 |
Family
ID=43032754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800245066A Pending CN102470513A (en) | 2009-04-30 | 2010-04-28 | Abrasive article with improved grain retention and performance |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US20110111678A1 (en) |
| EP (1) | EP2177318B1 (en) |
| JP (1) | JP2012525273A (en) |
| KR (1) | KR101326032B1 (en) |
| CN (1) | CN102470513A (en) |
| AU (1) | AU2010241762B2 (en) |
| BR (1) | BRPI1014834A2 (en) |
| CA (1) | CA2760208A1 (en) |
| CO (1) | CO6470829A2 (en) |
| IL (1) | IL215958A0 (en) |
| MX (1) | MX2011011383A (en) |
| NZ (1) | NZ596311A (en) |
| RU (1) | RU2498892C2 (en) |
| SG (1) | SG175807A1 (en) |
| WO (1) | WO2010126934A2 (en) |
| ZA (1) | ZA201108220B (en) |
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| CN104742029A (en) * | 2013-12-31 | 2015-07-01 | 圣戈班磨料磨具有限公司 | Grinding tool and manufacturing method thereof |
| CN106799685A (en) * | 2017-01-25 | 2017-06-06 | 蓝思科技（长沙）有限公司 | A kind of diamond abrasive grinding tool |
| CN109231970A (en) * | 2018-10-25 | 2019-01-18 | 河南东风新研材科技有限公司 | A kind of nanocrystalline ceramics corundum abrasive and preparation method thereof |
| CN110328623A (en) * | 2019-07-23 | 2019-10-15 | 广州奥拓夫精密智能制造有限公司 | A kind of precision cutting grinding wheel |
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| EP2858788A4 (en) * | 2012-06-06 | 2016-05-18 | Saint Gobain Abrasives Inc | Small diameter cutting tool |
| US20130337730A1 (en) * | 2012-06-06 | 2013-12-19 | Siddharth Srinivasan | Large diameter cutting tool |
| RU2015108681A (en) * | 2012-08-28 | 2016-09-27 | Сен-Гобен Абразивс, Инк. | LARGE DIAMETER CUTTING TOOL |
| WO2014210160A1 (en) * | 2013-06-25 | 2014-12-31 | Saint-Gobain Abrasives, Inc. | Abrasive article and method of making same |
| CN104669134A (en) * | 2015-01-30 | 2015-06-03 | 洛阳希微磨料磨具有限公司 | Production method of abrasive grinding wheel |
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| CN106799685A (en) * | 2017-01-25 | 2017-06-06 | 蓝思科技（长沙）有限公司 | A kind of diamond abrasive grinding tool |
| CN109231970A (en) * | 2018-10-25 | 2019-01-18 | 河南东风新研材科技有限公司 | A kind of nanocrystalline ceramics corundum abrasive and preparation method thereof |
| CN110328623A (en) * | 2019-07-23 | 2019-10-15 | 广州奥拓夫精密智能制造有限公司 | A kind of precision cutting grinding wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201108220B (en) | 2012-09-26 |
| SG175807A1 (en) | 2011-12-29 |
| US20110111678A1 (en) | 2011-05-12 |
| AU2010241762A1 (en) | 2011-11-24 |
| NZ596311A (en) | 2014-02-28 |
| WO2010126934A2 (en) | 2010-11-04 |
| AU2010241762B2 (en) | 2014-07-10 |
| CA2760208A1 (en) | 2010-11-04 |
| WO2010126934A3 (en) | 2011-03-03 |
| MX2011011383A (en) | 2012-01-20 |
| KR20120012476A (en) | 2012-02-10 |
| IL215958A0 (en) | 2012-01-31 |
| RU2498892C2 (en) | 2013-11-20 |
| EP2177318B1 (en) | 2014-03-26 |
| CO6470829A2 (en) | 2012-06-29 |
| KR101326032B1 (en) | 2013-11-05 |
| EP2177318A1 (en) | 2010-04-21 |
| RU2011147732A (en) | 2013-06-10 |
| BRPI1014834A2 (en) | 2016-04-12 |
| JP2012525273A (en) | 2012-10-22 |
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Application publication date: 20120523 |