CN103551984B - The preparation method of including natural fibers, abrasive material, thermal expansion resin hollow microspheres rubbing down integrated wheel - Google Patents
The preparation method of including natural fibers, abrasive material, thermal expansion resin hollow microspheres rubbing down integrated wheel Download PDFInfo
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- CN103551984B CN103551984B CN201310553418.0A CN201310553418A CN103551984B CN 103551984 B CN103551984 B CN 103551984B CN 201310553418 A CN201310553418 A CN 201310553418A CN 103551984 B CN103551984 B CN 103551984B
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- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses the preparation method of a kind of including natural fibers, abrasive material, thermal expansion resin hollow microspheres rubbing down integrated wheel, comprise and natural fiber, abrasive material, thermal expansion resin hollow microspheres mixed with binding agent and stirs; By material uniform spreading in die cavity; Hydraulic press pressurizes for twice compressing step.
Description
Technical field
The present invention relates to the preparation method of a kind of including natural fibers, abrasive material, thermal expansion resin hollow microspheres rubbing down integrated wheel, belong to abrasive tool industry.
Background technology
The various rubbing down grinding tools of current making mainly contain three large classes and there is following defect: 1. resin wheel---close structure, weak heat-dissipating, oil pressure are shaping, caused by dense structure.General resin bond wheel (bonded abrasive tool) is mainly formed through mixing, compression molding, heat hardening by abrasive material, resin adhesive, and the use of this kind of emery wheel also exists defects such as such as needing the heating of large cutting force, workpiece serious.Pore in porous grinding wheel (bonded abrasive tool) is generally can burn what fill and form by the filler (as walnut shell, refined naphthalene etc.) of burn off (i.e. carbonization) at higher than the temperature of more than 130 degree in cure process.But natural fiber under such conditions also can carbonization thus lost efficacy.
2. fiber crops wheel---polishing efficiency is low, as (which floor sisal hemp is sewed together, and only has end face to participate in grinding).Chinese patent CN1238254A discloses a kind of sisal fiber polishing wheel, disclose its preparation method be: adopt needing machine sisal hemp short fibre is made felted stock, then by layer 2-4 sisal hemp felted stock through superimposed, be stitched into a kind of sisal fiber polishing wheel.There is following shortcoming in the sisal fiber polishing wheel prepared by this kind of method: one, because used sisal fiber length only has 4-12cm, thus polishing wheel in use sisal fiber easily come off, the service life of polishing wheel is shortened; Two, because the restriction of needling density, can not ensure can to combine closely in any position of polishing wheel, thus also can affect the result of use of polishing wheel.
3. nylon wheel---abrasive material utilization rate is not high, and the low heating of the TG due to nylon can cause softening thus cause and decline to abrasive material hold, just comes off cause waste so that abrasive material does not fully participate in grinding; Also likely pollute grinding workpiece surface because feeling like jelly simultaneously.
Chinese patent CN200410029879.9 discloses a kind of manufacture method of sisal fiber polishing wheel, it be by prescind sisal fiber, synthetic resin and other optional plant and inorganic compound Homogeneous phase mixing, after drying, hot-forming.The polishing wheel produced of this method owing to being mold pressing but not having that apertured material so that total are very fine and close does not have space, thus easily causes grinding wheel surface temperature in whole grinding process to raise bonding agent inefficacy surface blackening, and raw material breaking releasing is wasted; Simultaneously grinding workpiece also can surface temperature rise large thus cause stress to concentrate and likely pollute grinding workpiece surface.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide the preparation method of the rubbing down integrated wheel of a kind of including natural fibers and abrasive material and thermal expansion resin hollow microspheres.
Above-mentioned purpose of the present invention is achieved by the following technical solution: the preparation method of the rubbing down integrated wheel of a kind of including natural fibers and abrasive material and thermal expansion resin hollow microspheres, comprises the steps:
1) natural fiber, abrasive material, thermal expansion resin hollow microspheres mixed with binding agent and stir;
2) material uniform spreading step 1 obtained is in die cavity;
3) hydraulic press carries out first time and pressurizes compressing;
4) release, and toasting, then carries out second time and to pressurize compacting, then baking-curing, come out of the stove after being slowly down to room temperature, mould unloading.
In the present invention, described natural fiber refers to nature fiber that is original or that directly obtain on the plant of cultivation, on the animal of artificial feeding, includes but not limited to string, animal origin, mineral fibres.In the example that the present invention one is concrete, described natural fiber is selected from seed fiber, as cotton, kapok etc.; Or leaf fibre, as sisal hemp, abaca etc.; Also or fasciated fiber, as ramie, flax, hemp, jute etc.In another example of the present invention, described natural fiber is selected from hair and silk, such as sheep's wool, goats hair, camel hair, the rabbit hair, yak hair or mulberry silk, tussah silk etc.Natural fiber described in the present invention can also be the recycled fiber of those Mian ﹑ Ma ﹑ Mao ﹑ silks.
In the present invention, described abrasive material refers to sharp keen, hard, in order to the material of the softer material surface of grinding.Described abrasive material can be natural abrasive, includes but not limited to natural emery, Naxas emery, garnet and natural diamond etc.; Also can be artificial abrasive material, include but not limited to brown corundum abrasive, white fused alumina abrasive material, single alundum abrasive material, black silicon carbide grain, green silicon carbide abrasive material, cubic silicon carbide abrasive material, cerium silicon carbide abrasive material, boron carbide, diamond and cubic boron nitride etc., and the recovery sand etc. of vitrified abrasive, resin wheel etc.
In the present invention, described thermal expansion resin hollow microspheres typical species comprises: the microballoon foaming agent foam powder of this expended microsphere of pine that Japanese Matsumoto Yushi-Seiyaku Co., Ltd. produces and the production of Akzo Nobel Expancel division department and physical expansion agent.Microballoon blowing agent is a kind of nucleocapsid structure, and shell is thermoplastic acrylic resin base polymer, and kernel is the sphere plastic particle of alkanes gas composition.The general 10-200 micron of diameter, after heating, volume can increase to self tens times by undergoes rapid expansion, thus reaches the effect of foaming.Microballoon foaming temperature range, from 75 DEG C-260 DEG C, according to various different processing temperature and technological requirement, can select most suitable microballoon model.
Thermal expansion resin hollow microspheres not only can dispel the heat but also be that structural strength can also be improved in the basis developed from sharp crazing simultaneously, can change the content of thermal expansion resin hollow microspheres according to the height of cooling requirements.Can produce the space that is conducive to grinding and from sharp micro-crack, there is pooling feature in grinding wheel organization.Advantage both this grinding tool combines rigid filler and foams also forms many hole-closing structures and disperses related stress, because microsphere expansion can bring a large amount of micro-cracks to the adhesive linkage around microballoon on the basis reducing structural strength not significantly, these micro-cracks and bubble are exactly good energy absorption pond when wheel is ground impact force action, thus avoid wheel body consume in grinding too fast and fracture and drop.Formed after allowing microballoon break in grinding and vary in size and the tough mouth of grinding distributed at diverse location, also be that heat dissipation channel is conducive to reducing wheel itself and grinding workpiece surface temperature simultaneously, thus improve the service life of wheel, what the utilization rate of raising material and minimizing grinding workpiece surface were caused stress to concentrate by carburizing may.The effect that the tiny balloon of interpolation thermal expansion by volume brings is that the volume ratio of adding is larger, and grinding and polishing efficiency is higher, and the temperature rise of grinding workpiece and grinding wheel surface is fewer.The addition of thermal expansion resin hollow microspheres is the 1-6% of abrasive material volume, can be 1.12%, 2%, 3%, 4%, 5%.
In the present invention, described bonding agent can be urea aldehyde, melamine resin, epoxy resin or inorganic binder etc., also can be phenolic resin modified, comprises the phenolic aldehyde of the modifications such as urea aldehyde, melamine resin, epoxy, acrylic acid.
Consumption of binder is raw material total mass ratio 20 ~ 50%.
Rubbing down integrated wheel of the present invention prepares by the following method: natural fiber, thermal expansion resin hollow microspheres are mixed with abrasive material, binding agent, injects mold cavity, after compacting with solidification, obtain product.
Between natural fiber of the present invention and abrasive material, mixed proportion can regulate according to actual needs, change the mixed proportion of natural fiber (volume ratio 1%-99%) and abrasive material (volume ratio 99%-1%), different rubbing down effects can be obtained: abrasive content is just bound to reduce same wheel natural fiber content is many, and at this moment polishing effect is good; Natural fiber content is few and abrasive content is just bound to increase, and at this moment grinding efficiency is high.Adopt the benefit of natural fiber to be, natural fiber can not feel like jelly blackout in the process of grinding; Natural fiber can strengthen structural strength as reinforcement again simultaneously.
In example of the present invention, the volume ratio of natural fiber is 80-99%, and the volume ratio of abrasive material is 1-20%, and now rubbing down integrated wheel focuses on polishing effect.Within the scope of this, the volume ratio of natural fiber can be 80%, 85%, 90%, 95%, 99% etc., and the volume ratio of abrasive material can be 1%, 5%, 8%, 10%, 15%, 20%.
In another instantiation of the present invention, the volume ratio of natural fiber is 50-80%, and the volume ratio of abrasive material is 20-50%, and now rubbing down integrated wheel takes into account polishing and ground effect, within the scope of this, the volume ratio of natural fiber can be 50%, 55%, 60%, 65%, 70%, 75% or 80%; The volume ratio of abrasive material can be 20%, 25%, 30%, 35%, 40%, 45% or 50%.
In another instantiation of the present invention, the volume ratio of natural fiber is 20-50%, and the volume ratio of abrasive material is 50-80%, and now rubbing down integrated wheel takes into account polishing and ground effect.Within the scope of this, the volume ratio of abrasive material can be 50%, 55%, 60%, 65%, 70%, 75% or 80%; The volume ratio of natural fiber can be 20%, 25%, 30%, 35%, 40%, 45% or 50%.
In example of the present invention, the volume ratio of natural fiber is 1-20%, and the volume ratio of abrasive material is 80-99%, and now rubbing down integrated wheel focuses on ground effect.Within the scope of this, the volume ratio of abrasive material can be 80%, 85%, 90%, 95%, 99% etc., and the volume ratio of natural fiber can be 1%, 5%, 8%, 10%, 15%, 20%.
In the present invention, at latter 80 DEG C of first time pressurization compacting, toast 2h, at latter 120 DEG C of second time pressurization compacting, toast 4-6h.
Rubbing down integrated wheel of the present invention can adopt two kinds of typical appearance structures: plane rubbing down integrated wheel and circumference grinding and polishing integrated wheel.As described in Fig. 1 or 2.Fig. 3 illustrates the microstructure of rubbing down integrated wheel, therefrom can find out that natural fiber, abrasive material and thermal expansion resin hollow microspheres combine by binding agent securely.Fig. 4 is the another kind of form microstructure schematic diagram of rubbing down integrated wheel.Difference is that centre adds one deck grid one of sisal cloth as reinforcement.During making plane rubbing down integrated wheel, one side is stained with back of the body lid, then covers without the need to the back of the body when making circumference rubbing down integrated wheel.In the present invention, carrying on the back lid can be glass lid, sisal hemp etc.
Further, as illustrated in fig. 1 and 2, the polish-grinding plate working face of rubbing down integrated wheel of the present invention also arranges groove, for plane rubbing down integrated wheel, described groove by polish-grinding plate center to surrounding radiated entends; For circumference rubbing down integrated wheel, described groove vertically arranges along polish-grinding plate working face.Described groove is more conducive to grinding, moves back bits and heat radiation, reduces surface of the work residual stress, simultaneously for new provides condition from sharp crack growth.
Accompanying drawing explanation
Fig. 1 is plane rubbing down integrated wheel schematic diagram of the present invention.
Fig. 2 is circumference rubbing down integrated wheel schematic diagram of the present invention.
Fig. 3 is the microstructure schematic diagram of rubbing down integrated wheel of the present invention.
Fig. 4 is the microstructure schematic diagram of another kind of rubbing down integrated wheel of the present invention.
Fig. 5 is the shaping mould that is heating and curing of the present invention.
Fig. 6 is plane rubbing down integrated wheel stereogram of the present invention.
Fig. 7 is plane rubbing down integrated wheel sectional schematic diagram of the present invention.
Fig. 8 is that in embodiment 1 plane rubbing down integrated wheel sample 1-3, natural fiber and abrasive material volume ratio change the relation with grinding ratio, grinding efficiency.
Fig. 9 is that in embodiment 1 plane rubbing down integrated wheel sample 1-3, natural fiber and abrasive material volume ratio change the relation with sample surface roughness.
Figure 10 is that embodiment 1 circumference rubbing down integrated wheel sample 1-3 natural fiber and abrasive material volume ratio change the relation with grinding ratio, grinding efficiency.
Figure 11 is that embodiment 1 circumference rubbing down integrated wheel sample 1-3 natural fiber and abrasive material volume ratio change the relation with sample surface roughness.
Figure 12 is that embodiment 2 plane rubbing down integrated wheel sample 4-6 thermal expansion resin hollow microspheres and abrasive material volume ratio change the relation with grinding ratio, grinding efficiency.
Figure 13 is that embodiment 2 plane rubbing down integrated wheel sample 4-6 thermal expansion resin hollow microspheres and abrasive material volume ratio change the relation with sample surface roughness.
Figure 14 is that embodiment 2 circumference rubbing down integrated wheel sample 4-6 thermal expansion resin hollow microspheres and abrasive material volume ratio change the relation with grinding ratio, grinding efficiency.
Figure 15 is that embodiment 2 circumference rubbing down integrated wheel sample 4-6 thermal expansion resin hollow microspheres and abrasive material volume ratio change the relation with sample surface roughness.
Figure 16 is the relation that embodiment 2 circumference rubbing down integrated wheel sample 7-9 thermal expansion resin hollow microspheres and abrasive material volume ratio meet or exceed critical value and grinding ratio, grinding efficiency.
Figure 17 is the relation that embodiment 2 circumference rubbing down integrated wheel sample 7-9 thermal expansion resin hollow microspheres and abrasive material volume ratio meet or exceed critical value sample surface roughness.
Figure 18 is the process chart preparing rubbing down integrated wheel.
Figure 19 is the another kind of process chart preparing rubbing down integrated wheel.
In figure, 1 for the back of the body lid, 2 be polish-grinding plate, 3 for thermal expansion resin hollow microspheres, 4 for natural fiber, 5 for binding agent, 6 for abrasive material, 7 for grid one of sisal cloth, 8 for abrasive material, resin adhesive liquid and thermal expansion resin hollow microspheres mixture, 9 be metal mold cavity mould.
Detailed description of the invention
Embodiment 1(explores natural fiber with abrasive material mixed volume than the relation with rubbing down effect)
Formula:
Sample production method illustrates:
1, sample production
1.1 batch mixings: in ratio in style formula each in formula 1, take abrasive material successively, then add coarse whiting (can be calcined kaolin etc.), stir; Under stirring, adding the sisal fiber (the plane rubbing down integrated wheel as made plane rubbing down then uses thin number, and the circumference rubbing down integrated wheel making circumference rubbing down then uses thick number) handled well, guaranteeing to stir; Under stirring, add thermal expansion resin hollow microspheres, guarantee to stir; Finally under stirring, add modified liquid phenolic resins, stir.Have suffered batch mixing process, surely will guarantee that batch mixing evenly (can not occur caking, clustering phenomena).
1.2 compactings and solidification: by shaping density 2.3-2.5g/cm
3, according to done rubbing down wheel volume size, calculate weighing.Load weighted material is divided uniformly and (as made the face grinding wheel of plane rubbing down, then first cover is loaded die cavity, then material is spread out in cover uniformly in die cavity; As made the circumference rubbing down integrated wheel of circumference rubbing down, to be then first semi-uniformly spread out in one of material in die cavity, then to add sisal hemp or glass fiber reticular cloth, then second half material remaining is spread out on sisal hemp or glass fiber reticular cloth uniformly).Die-filling complete after, carry out first time with hydraulic press and pressurize compressing.Then release, after toasting 2h, after carrying out second time pressurization compacting, after toasting 4-6h (plane rubbing down integrated wheel solidification 4h, circumference rubbing down integrated wheel solidification 6h), comes out of the stove after being slowly down to room temperature at 120 DEG C at 80 DEG C, mould unloading.
1.3 tests make style and are: the plane rubbing down integrated wheel of plane rubbing down: overall diameter is 4 inches (101.6-103mm), and internal diameter is 55mm, and aperture is 16mm, thickness 6-8mm);
The circumference rubbing down integrated wheel of circumference rubbing down: overall diameter is 10.6 inches of (270mm) apertures is 32mm, thickness 30mm).
Detect and contrast with test data:
1, method of testing illustrates: this grinding detects material and is: the plane rubbing down integrated wheel of plane rubbing down: 45# steel plate (the thick * 10mm of the wide 100mm* of long 200mm*); The circumference rubbing down integrated wheel of circumference rubbing down: 45# rod iron (long 200mm* diameter * 50mm), under identical grinding condition, (grinding material, rubbing down wheel bears pressure respectively, and rotational line speed (plane rubbing down integrated wheel: 60m/s, circumference rubbing down integrated wheel: 40m/s) is all identical.
2, each index calculating method illustrates:
2.1 grinding efficiencies: refer to that the worn amount of material is divided by the grinding time, unit g/min.
2.2 grinding ratios: the worn amount of material of exemplar and the ratio of rubbing down foot wheel abrasion amount.
2.3 surface roughnesses: refer to that finished surface has compared with Small Distance and small peak valley unevenness, unit um.Surface roughness is less, then surface is more smooth.Measure with two-tube light-section microscope.
Total grinding testing time is 30min, and every 10min is one section, and point three sections of collection data, ask arithmetic mean of instantaneous value.
3, Data Collection
3.1 do plane rubbing down integrated wheel (sample 1, sample 2, sample 3) and routine for plane rubbing down with grain 60#(common corundum with formula 1) 4 inches of face wheels contrast:
Note: natural fiber and abrasive material volume ratio are: sample 1:10% sample 2:20% sample 3:30%.
Table 1
Natural fiber and abrasive material volume ratio change with grinding ratio, grinding efficiency relation as shown in Figure 8; Natural fiber and abrasive material volume ratio change with the relation of sample surface roughness as shown in Figure 9.
3.2 do circumference rubbing down integrated wheel (sample 1, sample 2, sample 3) and routine for circumference rubbing down with grain 60#(common corundum with formula 1) 10.6 inches thousand pages take turns and contrast:
Table 2
Natural fiber and abrasive material volume ratio change with grinding ratio, grinding efficiency relation as shown in Figure 10; Natural fiber and abrasive material volume ratio change with the relation of sample surface roughness as shown in figure 11.
Embodiment 2(explores thermal expansion resin hollow microspheres with abrasive material mixed volume than the relation with rubbing down effect)
Formula:
Style fabrication processing, method and sample detection methods are see embodiment 1
3.3 do plane rubbing down integrated wheel (sample 4, sample 5, sample 6) and routine for plane rubbing down with grain 60#(common corundum with formula 2) 4 inches of face wheels contrast:
Note: thermal expansion resin hollow microspheres and abrasive material volume ratio are: sample 4:1.12%; Sample 5:2%; Sample 6:3%.
Table 3
Thermal expansion resin hollow microspheres and abrasive material volume ratio change with grinding ratio, grinding efficiency relation as shown in figure 12; Thermal expansion resin hollow microspheres and abrasive material volume ratio change with the relation of sample surface roughness as shown in figure 13.
3.4 do circumference rubbing down integrated wheel (sample 4, sample 5, sample 6) and routine for circumference rubbing down with grain 60#(common corundum with formula 2) 10.6 inches thousand pages take turns and contrast:
Table 4
Thermal expansion resin hollow microspheres and abrasive material volume ratio change with grinding ratio, grinding efficiency relation as shown in figure 14; Thermal expansion resin hollow microspheres and abrasive material volume ratio change with the relation of sample surface roughness as shown in figure 15.
Thermal expansion resin hollow microspheres and abrasive material volume ratio rise to by 3.5: sample 7:4% sample 8:5% sample 9:6%, when exploration thermal expansion resin hollow microspheres and abrasive material volume ratio meet or exceed critical value, the rubbing down effect of wheel, sample 7,8,9 is made circumference rubbing down integrated wheel by this test, carrys out test comparison.
Table 5
Thermal expansion resin hollow microspheres and abrasive material volume ratio meet or exceed critical value and grinding ratio, grinding efficiency relation as shown in figure 16; Thermal expansion resin hollow microspheres and abrasive material volume ratio meet or exceed the relation of critical value sample surface roughness as shown in figure 17.
3.6 plane rubbing down integrated wheel samples 6, circumference rubbing down integrated wheel sample 6 and same specification nylon wheel, sisal hemp are taken turns grinding index and contrast:
Table 6 plane polishing/rubbing down
Table 7 circumference polishing/rubbing down
Test brief summary:
1, obtained by embodiment 1 (formula 1) sample testing data analysis:
In same wheel, along with natural fiber and abrasive material volume ratio become greatly, the polishing performance of wheel improves, otherwise then grinding performance improves;
Can regulate to meet with abrasive species and grain number simultaneously and differently be ground the polishing performance of material to wheel, the requirement of grinding performance.
2, obtained by embodiment 2 (formula 2) sample testing data analysis:
In same wheel, when amount of abrasive is certain, along with thermal expansion resin microsphere and abrasive material volume ratio become large, the polishing performance of wheel, grinding performance is improved (but note: find according to 3.5 test datas, when thermal expansion resin microsphere and abrasive material volume ratio reach critical value or exceed critical value, grinding performance is by step-down; The consumption of thermal expansion resin microsphere tiny balloon and will be ground material and considers the polishing performance of wheel, the requirement of grinding performance according to the kind of selected microballoon, specification (diameter) size); Can regulate to meet with abrasive species and grain number simultaneously and differently be ground the polishing performance of material to wheel, the requirement of grinding performance.
3, by embodiment 1, the sample testing data of 2 and routine are comprehensively analyzed with grain number (common corundum) wheel test data and 3.6 test datas: the plane rubbing down integrated wheel of the plane rubbing down made by the method, the circumference rubbing down integrated wheel (thousand pages of wheels) of circumference rubbing down, at polishing performance, grinding performance all improves 20%-30%, by adjustment natural fiber, thermal expansion resin hollow microspheres, when use abrasive species and grain number (and by the abrasive particle in wheel tissue with abrasive material mixed volume, bonding agent, fiber, thermal expansion resin hollow microspheres is transferred to suitable ratio), all can meet difference and be ground the polishing performance of material to wheel, the requirement of grinding performance.
Claims (10)
1. a preparation method for including natural fibers, abrasive material, thermal expansion resin hollow microspheres rubbing down integrated wheel, comprises the steps:
1) natural fiber, abrasive material, thermal expansion resin hollow microspheres mixed with binding agent and stir;
2) material uniform spreading step 1 obtained is in die cavity;
3) hydraulic press carries out first time and pressurizes compressing;
4) release, and toasting, then carries out second time and to pressurize compacting, then baking-curing, come out of the stove after being slowly down to room temperature, mould unloading.
2. preparation method as claimed in claim 1, wherein said natural fiber is selected from the recycled fiber of cotton, kapok, sisal hemp, abaca, ramie, flax, hemp, jute, sheep's wool, goats hair, camel hair, the rabbit hair, yak hair, mulberry silk, tussah silk Huo Mian ﹑ Ma ﹑ Mao ﹑ silk.
3. preparation method as claimed in claim 1, wherein said abrasive material is selected from the recovery sand of natural emery, Naxas emery, garnet, natural diamond, brown corundum abrasive, white fused alumina abrasive material, single alundum abrasive material, black silicon carbide grain, green silicon carbide abrasive material, cubic silicon carbide abrasive material, cerium silicon carbide abrasive material, boron carbide, diamond, cubic boron nitride or vitrified abrasive, resin wheel.
4. preparation method as claimed in claim 1, the volume ratio of wherein said natural fiber and abrasive material is natural fiber 1-99%, abrasive material 1-99%.
5. preparation method as claimed in claim 4, the volume ratio of wherein said natural fiber and abrasive material is natural fiber 80-99%, abrasive material 1-20%; Or natural fiber 50-80%, abrasive material 20-50%; Or natural fiber 20-50%, abrasive material 50-80%; Or natural fiber 1-20%, abrasive material 80-99%.
6. preparation method as claimed in claim 1, wherein said thermal expansion resin hollow microspheres is selected from microballoon blowing agent, physical expansion agent; Diameter 10-200 micron.
7. the preparation method as described in claim 1 or 6, wherein said thermal expansion resin hollow microspheres is selected from this expended microsphere of pine.
8. preparation method as claimed in claim 6, the consumption of wherein said thermal expansion resin hollow microspheres is the 1-6% of abrasive material volume.
9. preparation method as claimed in claim 1, wherein toasts 2h at latter 80 DEG C of first time pressurization compacting, toasts 4-6h at latter 120 DEG C of second time pressurization compacting.
10. the rubbing down integrated wheel that method prepares as described in any one of claim 1-9.
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| CN106392908A (en) * | 2016-05-30 | 2017-02-15 | 广东工业大学 | Diamond grinding wheel with ceramic binders and production method thereof |
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