CN107177346A - Compound particle and grinding material and the manufacture method of compound particle using it - Google Patents
Compound particle and grinding material and the manufacture method of compound particle using it Download PDFInfo
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- CN107177346A CN107177346A CN201710079844.3A CN201710079844A CN107177346A CN 107177346 A CN107177346 A CN 107177346A CN 201710079844 A CN201710079844 A CN 201710079844A CN 107177346 A CN107177346 A CN 107177346A
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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Abstract
The present invention provides a kind of achievable mirror ultrafinish using flowing processing, and can be used for a long time, and the deterioration also few compound particle for being mainly used as abrasive grains and the grinding material and the manufacture method of compound particle using it of performance.The compound particle of the present invention is included comprising resin of the new Mohs' hardness for multiple particles of more than 13 material and containing polyvinyl alcohol.The preferred carborundum of material that new Mohs' hardness is more than 13, its resin preferably comprises elastomer.
Description
Technical field
It is used as the grinding of abrasive grains the present invention relates to a kind of compound particle for being mainly used as abrasive grains and by the compound particle
The manufacture method of material and the compound particle.
Background technology
Carborundum (SiC, new Mohs' hardness (newmohs hardness)：13), boron carbide (B4C, new Mohs' hardness：
14), diamond (new Mohs' hardness：Etc. 15) material has more than 13 high rigidity with new Moh's hardness scale, thus can be used as silicon,
The cut-out of the various ingot castings such as quartz fret saw (wire saw) or the free abrasive grains of wafer grinding (wafer lapping).
In addition, the shape of particle of these powders is usually the cracked shape of crushing state, and become with sharp edge
Indefinite shape, it is taken as that as the strong cutting force produced by its shape for cutting off or grinding is effective.It is used as the attrition process
Technology, using grind powder injection processing that material and treated object collide or by treated object and powder grinding material add to
In roller and the roller attrition process that is rotated etc..
And then, in recent years, in order to carry out the face grinding of part or going for the inner surface that can not reach of instrument of complicated shape
Burr, the R processing of marginal portion, processing of accurate micro parts etc., also utilize the liquid (medium) for making to be dispersed with abrasive grains
The technologies such as mobile viscoelastic fluid flow processing are crimped on viscoelastic high polymer material.Furthermore, wet type will be included herein
And all methods for being processed abrasive grains flowing including dry type are referred to as " flowing processing ".
In these flowing processing, grinding material and abrasive grains, but carborundum, boron carbide, gold can be selected according to its purpose
The material of the high rigidity such as hard rock is too strong due to cutting force, abrasive power in itself, therefore is not used as bringing light to treated object surface
Abrasive grains of the damp and attrition process into the mirror ultrafinish processing of mirror-like.
Therefore, as the abrasive grains of mirror ultrafinish processing, using soft (new Mohs' hardness is less than 12) and relatively
For materials such as spherical aluminum oxide, zirconium oxide, stainless steel, glass.But, even with these materials, when treated object is included
During the material of the softness such as aluminium, copper, plastics, it is necessary to further limit use condition.
However, being used as the example for the grinding material that silicon carbide powder is used as to flowing processing, it is known to such as patent document 1
And patent document 2.In patent document 1, in order that the surface of stainless steel (SUS) system, titanium system, aluminum, the part of molybdenum is thicker
It is rough, use the grinding material of carborundum.
In addition, in patent document 2, announcement has a kind of can not cause to damage and remove deposit to the surface of treated object
Spray treatment method.Herein, the granularity comprising carborundum or the abrasive grains of aluminum oxide is set to #400~#800, and then controlled
Grind pressure when material touches the surface of treated object.
According to the patent document 1 and patent document 2, it is known that the abrasive grains of the material comprising high rigidity such as carborundum are adapted to
In Surface Machining is obtained into coarse situation or situation about such as cutting surface, but it is being intended to not cause the surface of treated object
In the case of damage, it is necessary to terrifically limit its use condition.
On the other hand, in order to adjust the excessive abrasive powers of abrasive grains, proposition, which has to combine abrasive grains with elastic material, to be made
Method.For example in patent document 3, announcement, which has, a kind of makes abrasive grains be attached to grinding for the core surface containing water such as gelatin
Grind material, but the grinding material exist because it is prolonged preserve or use dry out and its hydraulic performance decline worry.Further, since
The dissolubility of nucleome, therefore there is also be not used to the flowing of water as medium processing this shortcoming.
In addition, for example in patent document 4, announcement has a kind of can carry out the mirror on treated object surface by injection processing
Face, the grinding material of glassy surface.It is to make abrasive grains attachment, be fixed on flexible core surface and be used as grinding material,
But when manufacturing the grinding material, it is necessary to repeat attachment, the pressing step of abrasive grains, and then it is also required to the screening step of abrasive grains.
The problem of being complicated accordingly, there exist manufacturing step.In addition, the grinding material by the grinding granulosa on surface by being changed into masonry structure
(masonry construction), and long lifetime or rejection deterioration, if but the grinding granulosa quilt that is carried on surface
Consumption, then must lose the ability as grinding material.
And then, such as in patent document 5 and patent document 6, announcement has one kind abrasive grains is dispersed in rubber or propylene
Grinding material in the elastomers such as acid resin, carbamate resins.Compared with making the grinding material that core surface carries abrasive grains, this
A little grinding materials have the advantages that to make being simple to manufacture, but these grind materials there is also it is following the problem of：It is adjoint to expose to surface
Abrasive grains abrasion and produce performance degradation, therefore when reuse when processing conditions can change.Further, since in elastomer
There is also abrasive grains, if therefore be intended to obtain desired elasticity, must make the ratio of elastomer becomes relatively many.As a result,
The abrasive grains exposed to surface tail off, therefore there is also be used as this problem of the lifetime of grinding material.
In this way, on to carry out the grinding material of mirror ultrafinish by flowing processing, so far there has been proposed several
Material is ground, but still suffers from its performance and this insufficient problem.
[prior art literature]
[patent document]
[patent document 1] Japanese Patent Laid-Open 11-28666
[patent document 2] Japanese Patent Laid-Open 2007-237389
[patent document 3] Japanese Patent Laid-Open 2001-207160
[patent document 4] International Publication No. WO2013/094492
[patent document 5] Japan Patent opens clear No. 55-98565 in fact
[patent document 6] Japanese Patent Laid-Open 2015-20241
The content of the invention
[invention problem to be solved]
Therefore, the present invention is that, in order to eliminate the shortcoming of prior art and winner, its object is to provide a kind of profit to can be achieved
With the mirror ultrafinish of flowing processing, and can be used for a long time, so performance deterioration also few compound particle and using its
Grind material and its manufacture method.
[technological means for solving problem]
The present invention relates to a kind of compound particle, including comprising new Mohs' hardness for more than 13 material multiple particles and
Resin containing polyvinyl alcohol.Moreover, the compound particle preferably comprises below 95wt% particle and at least more than 5wt%
Resin.
In addition, the preferred carborundum of material that new Mohs' hardness is more than 13, its resin preferably comprises elastomer.The elastomer
For thermosetting elastomer, its resin preferably comprises thermosetting resin.
Material is ground the present invention relates to one kind, it includes the compound particle as abrasive grains, the average grain diameter of the compound particle
It is preferred that 0.1mm φ~3.0mm φ.
Moreover, it relates to a kind of manufacture method of compound particle, including first step, make be comprising new Mohs' hardness
The powder of more than 13 material is scattered in the aqueous solution of the alkali metal salt containing polyvinyl alcohol and alginic acid；Second step, makes
The dispersion liquid obtained by the first step contacts the aqueous solution of the compound containing cation；And third step, make
The molding obtained by the second step is dried.
[The effect of invention]
If abrasive grains of the compound particle of the present invention as grinding material, available to expose to the particle on compound particle surface
Cutting force and abrasive power and constitute compound particle resin elasticity, and carry out can not be by the silicon carbide powder of high rigidity
Come the mirror ultrafinish using flowing processing realized.
In addition, when the compound particle of the present invention contacts treated object as abrasive grains, expose to the particle abrasion on surface,
And the also little by little wear down from surface of the resin containing polyvinyl alcohol, also can be from so even the particle of most surface is consumed
There is new particle in lower section, therefore few as the performance degradation of grinding material, and long lifetime can be achieved.
Brief description of the drawings
Fig. 1 is the skeleton diagram of the compound particle of the present invention.
Fig. 2 is the schematic diagram of the device used in embodiment 1.
Fig. 3 is the schematic diagram of the device used in embodiment 3.
Fig. 4 is the schematic diagram of the grinding test device used in embodiment and comparative example.
Embodiment
Hereinafter, one embodiment of the present invention is described in detail, but the present invention is not by any limit of the embodiment
It is fixed.
The present invention includes multiple particles comprising the material that new Mohs' hardness is more than 13 and contains polyvinyl alcohol
The resin of (Polyvinyl Alcohol, PVA), the multiple particle is comprising the material person that new Mohs' hardness is more than 13.
If in this way, the use of new Mohs' hardness being more than 13 hardness high material relatively, entering when with the resin containing PVA
During row Composite, required abrasive power can be obtained.On the other hand, when using the material that new Mohs' hardness is less than 12, grinding
Power declines, therefore can not implement sufficient attrition process.
New Mohs' hardness for more than 13 material such as can enumerate carborundum, boron carbide, diamond, wherein, carborundum
Price it is low and preferred.In addition, its shape of particle preferably crushes the cracked shape of state, and for the indefinite of sharp edge
Shape.Its reason is：Such a particle is readily available, and has edge by particle, can obtain appropriate abrasive power.
Fig. 1 be represent the present invention compound particle outline figure, including the resin 1 containing PVA with it is hard comprising new Mohs
Spend the particle 2 of the material for more than 13.
In addition, the 0.01%~10% of the particle diameter of the preferred final compound particle of the particle diameter for constituting the particle of the present invention, more
It is preferred that 0.1%~1%.Its reason is：If relative to the particle diameter of final compound particle, the particle diameter of the particle is excessive, then deposits
The anxiety of sufficiently elasticity and damage treated object can not obtained.Even if in addition, too small, can not also obtain sufficient abrasive power.
The ratio for constituting the particle of compound particle is not particularly limited, and can be changed according to purposes purpose.But, due to
Need elasticity to a certain degree, therefore ratio preferably up to below the 95wt%, more preferably below 90wt% of particle.
In addition, needing to constitute the particle of compound particle to show abrasive power, preferably at least with more than 10wt% ratio
Example contains, more preferably more than 20wt%.In the present invention, even if being tailed off in the particle for reducing the ratio of particle and exposing to surface
In the case of, although abrasive power is also adjusted, but will not be shortened immediately as the life-span of grinding material.
The present invention includes the resin containing PVA, by containing PVA in resin, can add as being best suited for utilizing flowing
The mirror ultrafinish of work and the compound particle reused for a long time can be realized.
In the prior art, by making the surface of elastomer carry abrasive grains or abrasive grains is dispersed in elastomer,
The abrasive power for grinding material can be adjusted, and realizes the mirror ultrafinish using flowing processing, but any grinding material is in the presence of as follows
Shortcoming：If the abrasive grains abrasion on surface, hydraulic performance decline, the life-span is also insufficient.
In contrast, in the present invention, by solving the problem containing PVA in resin.That is, it is used as when by the present invention
During abrasive grains, the abrasion of the particle on surface, and the also little by little wear down, therefore be initially embedded in tree from surface of the resin containing PVA
Particle inside fat occurs on the surface with the use repeated, therefore can realize the long lifetime as grinding material.
Therefore, if the compound particle of the present invention to be used as to the abrasive grains of grinding material, as the performance caused by reuse
Deterioration is few, therefore easily determines processing conditions.In addition, not merely with exposing to the particle on surface, also using internal particle, because
This has long lifespan and saves this advantage.
For the PVA of present invention average degree of polymerization preferably more than 300, especially more preferably more than 500.Saponification degree is preferred
More than 70mol%, more preferably especially more than 90m0l%.
In addition, in order to be modified to the resin for constituting the present invention, other compositions can be added.For example, in order to adjust elasticity
Deng elastomer can be added.Wherein, preferred thermosetting elastomer, for example, can enumerate：Natural rubber, acrylonitrile butadiene are common
Polymers, acrylate butadiene copolymer, styrene-butadiene-copolymer, propenoic methyl carbamate copolymer etc..
And then, phenol resin, melmac, the asphalt mixtures modified by epoxy resin of acrylic resin or thermosetting resin can also be added
Fat, carbamate resins, carbamide resin etc..
In order to adjust the physical property of compound resin of the invention, material of treated object etc. can be combined to select these compositions,
But multiple compositions can also be added.
Constitute resin preferably at least more than the 5wt% ratio, more preferably more than 10wt% of the present invention.Additionally, it is preferred that extremely
Contained more with below 90wt% ratio, more preferably below 80wt%.
And then, more than the 60wt% for preferably comprising the resin entirety of compound resin is PVA, more preferably more than 80wt%.Its
Reason is：If PVA content is very few, the excessively easy wear down of resin or it is difficult to wear down because of adding ingredient, therefore is related to
Performance degradation or short service life as grinding material.
The shape of the compound particle of the present invention is preferably on the whole the substantially spherical of non-flanged etc., and is suitable for jet grinding
Or flowing processing.
The compound particle of the present invention can be used as abrasive grains, and can regard its aggregate as grinding material.The grinding material can contain
The media such as water, oil, high polymer material.
Now, the preferred 0.1mm φ~3.0mm φ of the average grain diameter of the compound particle as abrasive grains, more preferably 0.3mm φ
~2.0mm φ.The average grain diameter of compound particle can be changed optionally, if but the number range, then easy to manufacture is relative
Consistent substantially spherical particle, therefore preferably.
The compound particle of the present invention is manufactured by the steps, and the step includes：First step, makes to include new Mohs
Hardness is scattered in the aqueous solution of the alkali metal salt containing polyvinyl alcohol and alginic acid for the powder of more than 13 material；Second step
Suddenly, the dispersion liquid obtained by the first step is made to contact the aqueous solution of the compound containing cation；And the 3rd step
Suddenly, dry the molding obtained by the second step.
Herein, as the alkali metal salt of alginic acid, preferably sodium alginate, cation, preferably magnesium ion, calcium ion etc. are used as
Alkaline-earth metal ions.In addition, being used as the compound of cation, preferably calcium chloride.
In the first step of the manufacture method of the present invention, the alkali metal salt of alginic acid and the tree containing PVA are prepared first
The aqueous solution of fat.As long as the concentration of the resin containing PVA now according to the compound particle as target intensity or elasticity and
Freely determine.But, resin concentration is low to become favourable in terms of cost of material or productivity.In addition, the alkali of alginic acid
The concentration of metal salt is preferably adjusted in the way of becoming 0.5wt%~2.0wt% relative to mixed aqueous solution.
Then, make to be scattered in for the powder of more than 13 material in prepared mixed aqueous solution comprising new Mohs' hardness,
And preparing raw material dispersion liquid.Now, content ratio (the abrasive grains rate of powder：Relative to the alkali metal salt of alginic acid with containing PVA
Resin component powder part by weight) can freely be determined according to the abrasive power as the compound particle of target.Powder
Content ratio become higher, abrasive power, cutting force are more lifted.
Then, in the second step, stock dispersion liquid is made to contact the aqueous solution of the compound containing cation.Now,
Preferred 0.5mol/L~the 2.0mol/L of concentration of the compound of cation.By contact method now, compound grain can control
The particle diameter or shape of son.
In order that compound particle becomes substantially spherical, following method can be used.For example, following method：From tubulose
Die orifice is added dropwise stock dispersion liquid or is sprayed or spread from the periphery of discoid rotary body from spraying die orifice, thus gives birth to
Into the drop of stock dispersion liquid, and the aqueous solution for making it contact the compound containing cation.If, can using such a method
Make substantially spherical compound particle.In addition, the rotating speed of diameter, atomisation pressure, rotary body by adjusting die orifice, dripping quantity,
Viscosity of solution etc., can change the particle diameter of compound particle.
It is variable by lifting the rotating speed of disk in the method for spreading stock dispersion liquid from discoid rotary body periphery
Cheng Geng little particle diameter, if but particle diameter to be made becomes below 0.3mm φ, the easy avalanche of its shape, in below 0.1mm φ situation
Under become more notable.
In addition, the mode that stock dispersion liquid is added dropwise from the die orifice of tubulose easily makes the relatively large compound particle of particle diameter, but
If particle diameter to be made becomes more than 2.0mm φ, the easy avalanche of its shape becomes more notable in the case of below 3.0mm φ.
When as abrasive grains, the avalanche of such a shape of particle is likely to become the reason for being damaged to treated object.Separately
Outside, the compound particle manufactured by reality has to pass through sieve to make particle diameter consistent, but the compound particle of shape avalanche can not pass through sieve,
And cause yield to decline.
The aqueous solution of compound containing cation can be static condition, but be stirred by using mixer etc.,
And promote the reaction of molding, and then the mutual adhesion of molding can be prevented.In addition, the liquor charging of stock dispersion liquid preferably uses silicon
Sebific duct and roller pump, thus can make dripping quantity become fixed, can obtain the relatively uniform molding of shape.
Finally, in third step, with more than 60 DEG C to making stock dispersion liquid contact the compound containing cation
The molding that the aqueous solution is obtained carries out heated drying, and makes its contraction, thermmohardening, thus can manufacture the compound particle of the present invention.
The particle diameter distribution and particle diameter of made compound particle can pass through dry type sieve test (Japanese Industrial Standards
(Japanese Industrial Standards, JIS) Z 8815-1994) determine.Herein, using aperture be 45 μm~
22.4mm different multiple sieves are sieved to sample, are determined the quality of the sample remained on each sieve and are obtained particle diameter point
Cloth.In addition, in this manual, cumulative distribution being recorded in the graph and the particle diameter that accumulation becomes on 50% point is set into average
Particle diameter.
[embodiment]
Hereinafter, embodiments of the invention are described in detail.
<Embodiment 1>
In embodiment 1, PVA (degree of polymerization is 1700, and saponification degree is 99mol%) is added first into water and is stirred
Mix, and then at 95 DEG C handle within more than 2 hours, and obtain the PVA aqueous solution.In addition, adding sodium alginate into water and stirring
Mix untill becoming transparent, and obtain sodium alginate aqueous solution.
Then, sodium alginate aqueous solution is added into the PVA aqueous solution and is stirred, is become with PVA concentration
The mode that 10.0wt%, the concentration of sodium alginate become 2.0wt% prepares mixed solution.
In addition, adding GC#3000 (average grain diameter is 4 μm) silicon carbide powder into the mixed aqueous solution and being stirred
Mix, and obtain stock dispersion liquid.Now, relative to carborundum, PVA, sodium alginate total weight, become the ratio of carborundum
Into 85.0wt%.
Then, as shown in Fig. 2 M is the motor rotate agitator, discoid workpiece (treated object), peace is used
The roller pump of the silicone tube of 0.8mm φ die orifice is mounted with equipped with front end, obtained stock dispersion is conveyed with flow velocity 3ml/min
Liquid, and be added dropwise to the upper face center portion of the 800rpm φ 80mm rotated discoid rotary body.From discoid rotary body
Periphery spreads stock dispersion liquid be added dropwise, and contacts the calcium chloride that the concentration stirred using agitator is 1.0mol/L
The aqueous solution.
The stock dispersion liquid for contacting calcium chloride water becomes substantially spherical molding and precipitation.By the molding with
Calcium chloride water separates water-filling of going forward side by side and washed.Now, through the sieve that aperture is 3mm, remove shape avalanche and become to be in drops
The molding of ground continuously shape.
Then, the molding obtained is dried at 60 DEG C.As a result, being put down by thermmohardening with shrinking
The compound particle that equal particle diameter is 0.6mm.By the operation, the compound particle finally obtained becomes 54g, and its yield is 92%.
Using the aggregate of made compound particle as the abrasive grains of grinding material, and flow-ground experiment is carried out.Herein,
Implement the flow-ground in the liquid of the grinding of material of flexible relative is considered suitable for.
In flow-ground experiment, as shown in figure 4, prepare the plate of a diameter of 5cm aluminum first as treated object 4,
And it is installed on the front end of a diameter of 8mm stainless steel bar.Then, water 200ml and grinding material compound particle 3100ml are added
Into 500ml beakers, aluminum plate is rotated 1 hour with 800rpm wherein, and plate surface is ground.
Moreover, evaluating grinding performance by determining surface roughness Ra and glossiness before and after the processing.Herein, using three
The SV-3100 of rich (Mitutoyo) (share) manufacture, control JIS B 0601：1994 surface roughness specification determines arithmetic
Average surface roughness Ra.In addition, the MULTI GLOSS manufactured using Konica Minolta (Konica Minolta) (share)
268, control JIS Z 8741：1997 mirror surface luster-assay method is surveyed come the mirror surface luster to 60 ° of angle of measure
It is fixed.
It relative to the surface roughness Ra of before processing is about 0.20 μm that the result of the flow-ground experiment of embodiment 1, which is, place
Surface roughness Ra after reason is about less than 0.03 μm.In addition, in the measure using the glossiness of gloss meter, relative to processing
Preceding about 200, become about 500 after processing.
It is shown in Table 2 in addition, grinding material will be reused to carry out the result of flow-ground experiment.
Result more than, it is known that the compound particle of embodiment 1 can be used as can be achieved to grind using the minute surface of flowing processing
The abrasive grains of mill, even if in addition, the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 2>
In example 2, in addition to the rotating speed of discoid rotary body is altered into 350rpm, with same as Example 1
Method makes compound particle.The average grain diameter of compound particle is 1.6mm, and its yield is 86%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 2 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 3>
In embodiment 3, as shown in figure 3, by stock dispersion liquid same as Example 1 from a diameter of 0.8mm tubulose
Die orifice be added dropwise to concentration be 1.0mol/L calcium chloride water in.The stock dispersion liquid for contacting calcium chloride water becomes
Substantially spherical molding and precipitation.The molding is separated into water-filling of going forward side by side with calcium chloride water to wash.Now, it is through aperture
5mm sieve, remove shape avalanche and become in drops continuously shape molding.
Then, the result molding obtained being dried at 60 DEG C, it is the compound of 2.5mm to obtain average grain diameter
Particle, its yield is 70%.In addition, the result visually observed made compound particle, with embodiment 1 and embodiment
2 compare, and see the particle of many shape avalanches.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 3 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 4>
In example 4, in addition to using the die orifice of a diameter of 1.2mm tubulose, with method system same as Example 3
Make compound particle.The average grain diameter of compound particle is 3.5mm, and its yield is 60%.In addition, being carried out to made compound particle
The result visually observed, compared with embodiment 1, embodiment 2 and embodiment 3, sees the particle of many shape avalanches.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 4 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 5>
In embodiment 5, in addition to the rotating speed of discoid rotary body is altered into 1200rpm, with same as Example 1
Method makes compound particle.The average grain diameter of compound particle is 0.3mm, and its yield is 80%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 5 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 6>
In embodiment 6, in addition to the rotating speed of discoid rotary body is altered into 2000rpm, with same as Example 1
Method makes compound particle.The average grain diameter of compound particle is 0.2mm, and its yield is 75%.In addition, using magnifying glass to made
The result that the compound particle of work is observed, compared with embodiment 1, embodiment 2 and embodiment 5, sees many shape avalanches
Particle.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 6 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 7>
In embodiment 7, in addition to the rotating speed of discoid rotary body is altered into 2500rpm, with same as Example 1
Method makes compound particle.The average grain diameter of compound particle is 0.1mm, and its yield is 65%.In addition, using magnifying glass to made
The result that the compound particle of work is observed, compared with embodiment 1, embodiment 2, embodiment 5 and embodiment 6, sees many shapes
The particle of shape avalanche.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 7 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 8>
In embodiment 8, as shown in table 1 as change carborundum, PVA, the ratio of alginic acid, and with same as Example 1
Method make compound particle.The average grain diameter of compound particle is 0.7mm, and its yield is 89%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 8 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 9>
In embodiment 9, as shown in table 1 as change carborundum, PVA, the ratio of alginic acid, and with same as Example 1
Method make compound particle.The average grain diameter of compound particle is 0.7mm, and its yield is 85%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 9 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 10>
In embodiment 10, into the PVA aqueous solution and the mixed aqueous solution of sodium alginate aqueous solution so that add solid into
Be divided into 40% acrylonitrile butadiene system latex, and as shown in table 1 as adjustment carborundum, PVA, alginic acid and acrylonitrile fourth
The ratio of diene rubber, in addition, makes compound particle in the same manner as in Example 1.The average grain diameter of compound particle
For 0.7mm, its yield is 86%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 10 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 11>
In embodiment 11, into the PVA aqueous solution and the mixed aqueous solution of sodium alginate aqueous solution so that add phenol resin
Solution, and as shown in table 1 as adjustment carborundum, PVA, the ratio of alginic acid and phenol resin, in addition, with the phase of embodiment 1
Same method makes compound particle.The average grain diameter of compound particle is 0.7mm, and its yield is 85%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 11 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 12>
In embodiment 12, into the PVA aqueous solution and the mixed aqueous solution of sodium alginate aqueous solution so that add solid into
Be divided into 40% acrylonitrile butadiene system latex and acrylic resin soln, and as shown in table 1 as adjustment carborundum, PVA, sea
The ratio of alginic acid, acrylic resin and acrylonitrile butadiene rubber, in addition, makes in the same manner as in Example 1
Compound particle.The average grain diameter of compound particle is 0.7mm, and its yield is 85%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 12 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 13>
In embodiment 13, replace GC#3000 (flat except addition GC#3000 (average grain diameter is 4 μm) boron carbide powder
Equal particle diameter is 4 μm) silicon carbide powder beyond, compound particle is made in the same manner as in Example 1.Compound particle is averaged
Particle diameter is 0.7mm, and its yield is 85%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 13 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
<Embodiment 14>
In embodiment 14, replace GC#3000 (flat except addition GC#3000 (average grain diameter is 4 μm) diamond dust
Equal particle diameter is 4 μm) silicon carbide powder beyond, compound particle is made in the same manner as in Example 1.Compound particle is averaged
Particle diameter is 0.7mm, and its yield is 85%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand that the compound particle of embodiment 14 is also used as can be achieved the abrasive grains of the mirror ultrafinish using flowing processing,
In addition, even if the abrasive grains of the grinding material are reused, performance degradation is also few, and long lifespan.
Hereinafter, comparative example is illustrated.
<Comparative example 1>
In comparative example 1, replace GC#3000 (flat except addition GC#3000 (average grain diameter is 4 μm) alumina powder
Equal particle diameter is 4 μm) silicon carbide powder beyond, compound particle is made in the same manner as in Example 1.Compound particle is averaged
Particle diameter is 0.7mm, and its yield is 80%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Understand comparative example 1 compound particle can not carry out using flowing processing mirror ultrafinish, and be not used as into
The grinding material of row mirror ultrafinish.
<Comparative example 2>
In comparative example 2, in addition to PVA is replaced using phenol resin, compound grain is made in the same manner as in Example 1
Son.The average grain diameter of compound particle is 0.6mm, and its yield is 85%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Will also realize that the compound particle of comparative example 2 can also carry out the mirror ultrafinish using flowing processing, but with using PVA's
Situation is compared to grinding hydraulic performance decline, in addition, big as the performance degradation caused by reuse.
<Comparative example 3>
In comparative example 3, in addition to PVA is replaced using melmac, make in the same manner as in Example 1
Compound particle.The average grain diameter of compound particle is 0.6mm, and its yield is 85%.
The aggregate of made compound particle will be made as the abrasive grains of grinding material, and carried out same as Example 1
The result of flow-ground experiment is shown in Table 2.
Will also realize that the compound particle of comparative example 3 can also carry out the mirror ultrafinish using flowing processing, but with using PVA's
Situation is compared to grinding hydraulic performance decline, in addition, big as the performance degradation caused by reuse.
If 1~embodiment of embodiment 14 to more than collects with the compound particle in 1~comparative example of comparative example 3,
Such as following table 1, if in addition, collecting to the result for flowing grinding test, such as following table 2.
[table 1]
[table 2]
Claims (9)
1. a kind of compound particle, it is characterised in that：Including comprising new Mohs' hardness is multiple particle of more than 13 material and contains
There is the resin of polyvinyl alcohol.
2. compound particle according to claim 1, it is characterised in that：The particle including below 95wt% and at least
More than the 5wt% resin.
3. compound particle according to claim 1 or 2, it is characterised in that：The new Mohs' hardness is more than 13 material
For carborundum.
4. compound particle according to claim 1 or 2, it is characterised in that：The resin contains elastomer.
5. compound particle according to claim 4, it is characterised in that：The elastomer is thermosetting elastomer.
6. compound particle according to claim 1 or 2, it is characterised in that：The resin contains thermosetting resin.
7. one kind grinding material, it is characterised in that：Including compound particle according to any one of claim 1 to 6 as grinding
Abrasive particle.
8. grinding material according to claim 7, it is characterised in that：The average grain diameter of described compound particle be 0.1mm φ~
3.0mmφ。
9. a kind of manufacture method of compound particle, it manufactures compound particle according to any one of claim 1 to 6, its
It is characterised by：Including first step, the powder comprising new Mohs' hardness for more than 13 material is set to be scattered in containing polyvinyl alcohol
With in the aqueous solution of the alkali metal salt of alginic acid；Second step, contacts the dispersion liquid obtained by the first step and contains
There is the aqueous solution of the compound of cation；And third step, dry the molding obtained by the second step.
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| JP2016-045345 | 2016-03-09 | ||
| JP2016045345A JP6674801B2 (en) | 2016-03-09 | 2016-03-09 | Composite particles for abrasive grains and method for producing abrasives and composite particles for abrasive grains using the same |
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| CN113059476A (en) * | 2021-04-28 | 2021-07-02 | 重庆精鸿益科技股份有限公司 | Intelligent door lock handle polishing device and polishing method |
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| JP2020183002A (en) * | 2019-05-08 | 2020-11-12 | 株式会社チップトン | Polishing stone for barrel polishing and centrifugal barrel polishing method |
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|---|---|
| TW201731634A (en) | 2017-09-16 |
| TWI785602B (en) | 2022-12-01 |
| JP6674801B2 (en) | 2020-04-01 |
| TWI732823B (en) | 2021-07-11 |
| JP2017160314A (en) | 2017-09-14 |
| CN107177346B (en) | 2021-08-03 |
| TW202130457A (en) | 2021-08-16 |
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