CN102732215A - Inorganic binding agent stacked abrasive and method for manufacturing abrasive cloth from same - Google Patents
Inorganic binding agent stacked abrasive and method for manufacturing abrasive cloth from same Download PDFInfo
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Abstract
The invention discloses an inorganic binding agent stacked abrasive and a method for manufacturing abrasive cloth from the inorganic binding agent stacked abrasive. The inorganic binding agent stacked abrasive can be the inorganic binding agent stacked abrasive with at least two parallel surfaces and the inorganic binding agent stacked abrasive in the figure of equal area. The two inorganic binding agent stacked abrasives both take inorganic materials as binders and take single-abrasive-particle groups as bodies and comprise active heat-absorbing material, inorganic heat-absorbing material, inert abrasive aid material, lubricating material and the like. The regular inorganic binding agent stacked abrasive with at least two parallel surfaces and the inorganic binding agent stacked abrasive in the figure of equal area are obtained by curing at low temperature. The cold stacked abrasive is provided for the manufacturing of the abrasive belt, so that the abrasive efficiency of the abrasive belt can be increased, the service life of the abrasive tool can be prolonged, the comprehensive use cost of the abrasive belt can be reduced, and the surface quality of the workpiece can be improved.
Description
Technical field
The present invention relates to a kind of preparation method of emery cloth, relate to a kind of inorganic bonding agent specifically and pile up abrasive material and adopt the method for piling up abrasive material manufacturing emery cloth.
Technical background
Traditional abrasive material is used as single particle more and uses as grinding and polishing thing.
The abrasive band preparation method of prior art is: with sticker abrasive material is bonded on the matrix; Matrix is cloth, paper or complex matrix etc., and abrasive material is the simple grain abrasive material of each grain size number, is that individual layer is planted sand when processing the abrasive band, and its life-span is generally very short; Scrap in whole abrasive band with the consumption of individual layer abrasive material in the abrasive band.
The tradition abrasive band is owing to be the single layer of abrasive particles grinding, and abrasive particle is obviously inconsistent in grinding original state, intermediateness and terminal stage shape and grinding force, so workpiece surface quality also has very big-difference, in use makes burned work-surface easily.
In Chinese patent CN102177000A, mention abrasive agglomerates; Be to be that the tackiness agent of 1:2 to 1:20 is bonded together for the mol ratio with Al2O3 and SiO2 on basis in order to silico-aluminate; In solidified abrasive agglomerates below 400 ℃, it does not relate to shape and method of manufacture;
Related in Chinese patent CN201746501U, CN201338238Y is the spherical abrasive material shape, and it does not relate to shape and method of manufacture;
All do not relate to shape and method of manufacture at Chinese patent CN1141016A, CN1411403A, CN1882423A, CN11439923A, CN1882420A etc.
Summary of the invention
The object of the invention provides a kind of inorganic bonding agent to pile up abrasive material to existing weak point in the above-mentioned prior art just and adopts the method for piling up abrasive material manufacturing emery cloth; This method can be made two kinds of inorganic bonding agents and pile up abrading-body; A kind of is to have to have at least two parallel surface inorganic bonding agents to pile up abrasive material, and another kind is that equivalance shape inorganic bonding agent is piled up abrasive material.
Pile up the abrasive material method of manufacture and be wedding agent with the inorganic materials all, be the main body for two kinds of the present invention with abrasive material single particle crowd, comprise active heat-sink material, inorganic endothermic material, inertia grinding aid material, lubricant etc. for one, adopt low-temperature curing, obtain having at least two parallel surfaces rules to pile up abrading-bodies and equivalance shape inorganic bonding agent is piled up abrading-body; Making for the abrasive band provides " cold dome amass abrasive material ", thereby the grinding efficiency that improves the abrasive band and the work-ing life of improving grinding tool, reduces abrasive band use comprehensive cost, improves the surface quality of workpiece simultaneously.
The object of the invention can be realized through following technique measures:
Material composition and preparation process that inorganic bonding agent according to the invention is piled up abrasive material are following::
A, by weight getting: particle diameter is 8.4 ~ 350 microns abrasive material single particle crowd 50 ~ 85%, inorganic materials wedding agent 15 ~ 50%, wetting agent 5 ~ 25%, active heat-sink material 1 ~ 30%, the hibbsite 1 ~ 10% as the inorganic endothermic material, inertia grinding aid material 1 ~ 35% and lubricant 0 ~ 5%, an additive 0 ~ 8%;
Any one method among B, the following a of employing or the b prepares:
A. the powder section mixing in the A step being drawn materials is put into mixer and is mixed; Liquid portion in afterwards the A step being drawn materials adds mixing gradually; Adjustment viscosity is at 15000cps ~ 50000cps; Be preferably in 25000cps ~ 40000cps, slurry is filled in the mould, it is dry to get into drying installation; The rule that obtains the typing of drying or partial desiccation is piled up abrasive material, and the size control that rule is piled up abrasive material exists: thickness H:0.15 ~ 4mm; Circumscribed circle diameter D:0.5 ~ 12mm; Gained partial desiccation product can obtain the long-pending abrasive material of regular cold dome of at least two parallel surfaces in top temperature complete drying, curing below 125 ~ 185 ℃;
B, the powder section mixing during the A step drawn materials are put into mixing equipment; Liquid portion in afterwards the A step being drawn materials adds batch mixing, processes moistening material, puts into the pair roller rolling device and is pressed into sheet or list structure, dry below 100 ℃; Products obtained therefrom is broken, screening; Required accumulation abrasive grain particle diameter is controlled at 0.15 ~ 3.35mm; Particle diameter commonly used is at the particle of the approximate equivalance shape of 0.3 ~ 1mm; Products obtained therefrom in 125 ~ 185 ℃ of following completely solidified of top temperature, is sieved again, promptly obtain the long-pending abrasive material of approximate equivalance shape cold dome of required particle diameter.
Abrasive material single particle described in the present invention is taken from any one or the two or more mixture in brown corundum, white fused alumina, microcrystal fused alumina, chromium corundum, silit or the zircon corundum.
Inorganic materials wedding agent water intaking dissolubility modified water glass according to the invention.
Active heat-sink material according to the invention is fluorine-containing metal-salt: take from any one or mixture in sodium aluminum fluoride, potassium fluoborate or the Sodium tetrafluoroborate; The heat absorption principle of said active heat-sink material is following: contain fluoroborate and meet hot melt, impel abrasive particle to come off easily, preventing the obstruction in abrasive band, and it separates out fluorine, helps the grinding of steel, when being adapted to grinding especially without the dry grinding abrasive band of quench liquid; Emit combination water simultaneously, play cooling, heat-absorbing action.
Inorganic endothermic material according to the invention is a hibbsite, and molecular formula is Al (OH)
3The heat absorption mechanism of said inorganic endothermic material is following: the hibbsite thermal dehydration begins temperature, maximum endotherm(ic)peak, plays anti-static electrification simultaneously.
Inertia grinding aid material according to the invention is taken from any one or the mixture in lime carbonate, calcium sulfate, wollastonite or the talcum powder.
Lubricant according to the invention is taken from any one or the mixture in the metal-salt of graphite, talcum powder, Magnesium Stearate, terra alba etc.
Additive according to the invention is taken from any one or mixture of pigment, dyestuff or softening agent; Pigment is taken from inorganic salt and carbon blacks such as the oxide compound, sulfide, vitriol, chromic salt, molybdate of metal, pigment dyestuffs such as the blue or green pigment of phthalein; Dyestuff is taken from high temperature resistant dyestuff; Softening agent is got SEPIGEL 305.
Said wetting agent is taken from water etc.
The preparation process of accumulation abrasive material emery cloth of the present invention is following:
A, following material is processed primer, be coated on the base material after treatment; Said primer is taken from any one in following two kinds of primers; Wherein a kind of is that feedstock production by the following weight ratio forms: as the resol 55 ~ 75% of wedding agent; As the lime carbonate 25 ~ 45% of grinding aid material, as the tensio-active agent 0.1 ~ 0.5% of additive; A kind of is that feedstock production by the following weight ratio forms: epoxy resin 37 ~ 57%, solidifying agent 19 ~ 29%, thinner 14 ~ 44%; Said tensio-active agent is taken from tween 20, and said solidifying agent is taken from polyamide 6 50, and said thinner is taken from toluene, butanols;
B, employing electrostatic sand-planting machine will be piled up abrasive material and evenly be implanted in substrate material surface; Or adopt gravity to plant to pile up abrasive material through slippage roll extrusion spreader again behind the sand and evenly divide on matrix surface;
After c, process are planted sand; Through behind the primary drying, apply one deck again and be mixed and made into multiple glue by wedding agent, grinding aid material, additive, wherein said multiple glue is that the feedstock production by the following weight ratio forms: as the resol 55 ~ 90% of wedding agent; Lime carbonate 10 ~ 45% as the grinding aid material; As the tensio-active agent 0.1 ~ 0.5% of additive, red stone 1 ~ 8%, wherein said tensio-active agent is taken from tween 20; Rolling after redrying, and then warp solidifies, flexure becomes rule and piles up abrasive material coated abrasive tool product; Wherein the primary drying temperature is at 65 ℃ ~ 105 ℃, and the time is controlled at 30min ~ 90min; The redrying temperature is at 65 ℃ ~ 95 ℃, and the time is controlled at 120min ~ 180min.
Beneficial effect of the present invention is following:
Abrasive material accumulation body of the present invention, it is shaped as when having two parallel surfaces at least, can produce the good emery cloth of planarization, abrasive band product; Having at least two parallel surfaces to pile up abrading-bodies and equivalance shape piles up abrading-body and all can produce outside surface and give prominence to and be uneven the product that sharpness is good, efficient is high; Inner packet contains the cooling material that can absorb grinding heat, has realized " regular cold dome amasss abrasive material ", and after it processed emery cloth, abrasive band, according to the material different proportioning, in conjunction with the adjustment of grinding pressure, workpiece was not burnt when reaching grinding; Because the emery cloth that the long-pending abrasive material of cold dome is produced, the abrasive band product abrasive particle quantity on effective grinding surface thickness is most doubly and even tens of times than monolayer of particles, therefore improves the work-ing life, raising grinding efficiency of coated abrasive tool greatly, improve the surface quality of workpiece and the self-consistentency property of ground effect simultaneously.This invention will provide high-quality inorganic bonding agent abrasive material accumulation body for coated abrasive tool, the product of producing with a method simultaneously do not get rid of as the polishing abrading block directly use.
Description of drawings
Fig. 1 is used to prepare the continuous production device synoptic diagram that at least two parallel surfaces are piled up abrasive material.
Wherein: 101 are movable dancer rools for adding stand materials device, 109 for carrying roller, 108 for drying installation, 107 for annular lining band, 106 for mesh punching block band, 105 for discharging cleaning plant, 104 for finished product collection device, 103 for guide wheel, 102.
Fig. 2: at least two parallel surface rules are piled up abrasive material and directly are deposited in the emery cloth production equipment synoptic diagram on the matrix.
Wherein: 201, pile up the abrasive material finished product; 202 redrying stoves; 203, guide wheel; 204, discharging preparation device; 205, mesh punching block band; 206, annular lining band; 207, primary drying device; 208 carrying rollers; 209, add the stand materials device; 210, movable dancer rools; 211, matrix starting material; 212, the moist treatment unit of matrix.
Fig. 3 is the mesh band of different shape.
Wherein: a3 is that cylindrical mesh band, b3 are that triangular prism shaped mesh band, c3 are that four prism type mesh band, d3 are: hexagon mesh band.
Fig. 4: the shape synoptic diagram of piling up abrasive material for rule.
Wherein: the cylindrical mesh band of a4, b4 are that triangular prism shaped, c4 is four prism type, d4 hexagon
401, basic abrasive material; 402, active heat-sink material; 403, inertia grinding aid material; 404, lubricant; 405, add material; 406, inorganic bonding agent.
Fig. 5: the emery cloth production unit schema that special frock is arranged.
Wherein: 501, put yardage roll 502, gluing 503, electrostatic sand-planting 504, antistatic conveying belt 505, a sandbox A 506, receive sand device 507, sandbox B, 508, gravity and plant sand device, 509, slippage roll extrusion spreading out device 510, primary drying 511, multiple glue 512, redrying 513, rolling.
Fig. 6: slippage roll extrusion spreader principle of work and structure iron.
Wherein: 601 motors, 602 pulleys, 603 belts, 604 rules are piled up matrix, 606 negative pulley wheels, 607 gears, 1,608 rollers, 609 gears, 2,610 chocks, 611 supports, the smooth accumulation abrasive material emery cloth later of crossing primer on the abrasive material, 605.
Fig. 7: process the emery cloth synoptic diagram through electrostatic sand-planting.
Wherein: 701 matrixes, 702 matrix transition layers, 703 rules are piled up abrasive material, 704 primers, 705 multiple glue.
Fig. 8: have two parallel surfaces and pile up abrasive material emery cloth synoptic diagram.
Wherein: 801 matrixes, 802 matrix transition layers, 803 at least two parallel surfaces rule are piled up abrasive material, 804 primers, 805 multiple glue.
Fig. 9 is that equivalance shape is piled up abrasive material emery cloth synoptic diagram.
Wherein: 901 matrixes, 902 matrix transition layers, 903 equivalance shapes are piled up abrasive material, 904 primers, 905 almost sphericals accumulation abrasive material, 906 multiple glue.
Figure 10 is 125 μ m individual layer abrasive materials and the grinding comparison diagram of piling up the abrasive material abrasive band.
Wherein lateral coordinates is the grinding number of times, each 400 seconds; The 1st ~ 6 grinding pressure is that 21N, the 7th ~ 12 grinding pressure are that 26N, the 13rd ~ 18 grinding pressure are that 32N, the 19th ~ 32 grinding pressure are 37N.Abrasive material is: silit, the belt sanding residual thickness is seen table 1.Grinding work piece material: brass.
Figure 11 is 80 μ m individual layer abrasive material abrasive bands and the grinding comparison diagram of piling up the abrasive material abrasive band.
Wherein lateral coordinates is the grinding number of times, each 400 seconds; The 1st ~ 6 grinding pressure is that 26N, the 7th ~ 12 grinding pressure are that 37N, the 13rd ~ 23 grinding pressure are 46N.Abrasive material is: silit, the belt sanding residual thickness is seen table 1.Grinding work piece material: brass.
Embodiment
To combine embodiment to further describe below the present invention:
Embodiment 1: have the preparation that has at least two parallel surface rules to pile up abrasive material
With the 5Kg median size be: the silit of 125 μ m is put into the dry powder mixer and was mixed 15 minutes with, wollastonite 0.3Kg, sodium aluminum fluoride 0.2Kg, al oxide 0.2Kg, terra alba 0.1Kg, pigment iron oxide black 0.04Kg; Put into single pot of mixer then; It is an amount of to add 2.3Kg modified water glass (this experiment is the buying of the modest Science and Technology Ltd. of moral from Xi'an with modified water glass) and 1.5% polyacrylamide solution; Mix, adjustment viscosity is at 30000cps; Put into Fig. 1 and add stand materials device 108, the whipping appts in the device 108 is in the continuously stirring state; Slurry is filled in the mesh Steel Strip Die 104 of movement continuously rule, and mold shape is seen Fig. 3, b3 trilateral type; Get into drying installation 106 dryings, the rule that obtains the partial desiccation typing is piled up abrasive material, and through discharging cleaning plant 103, the rule after the demoulding is piled up abrasive material and fallen in the finished product collection device 102; Obtain rule and pile up the abrasive material unit; Rule is piled up the size of abrasive material: thickness H:0.3mm; Circumscribed circle diameter D:2mm; Gained partial desiccation product 120 ℃ of dryings of temperature 2 hours, ~ 170 ℃ of dryings solidified and accomplish in 3 hours.Can obtain at least two parallel surfaces " regular cold dome amasss abrasive material "; Rule after the curing is piled up abrasive product, can produce rule through the coated abrasive tool production unit that contains special procedure and pile up the abrasive sand yardage roll.
Embodiment 2: have the preparation that has at least two parallel surface rules to pile up abrasive material
With the 5Kg median size be: the silit of 80 μ m is put into the dry powder mixer and was mixed 15 minutes with, wollastonite 0.25Kg, sodium aluminum fluoride 0.2Kg, al oxide 0.15Kg, graphite 0.1Kg, pigment iron oxide black 0.04Kg; Put into single pot of mixer then; The polyacrylamide solution that adds 2.3Kg modified water glass and 1.5% is an amount of; Mix, adjustment viscosity is at 30000cps; Put into Fig. 1 and add stand materials device 108, the whipping appts in the device 108 is in the continuously stirring state; Slurry is filled in the mesh Steel Strip Die 104 of movement continuously rule, and mold shape is seen Fig. 3, a3 circular hole; Get into drying installation 106 dryings, the rule that obtains the partial desiccation typing is piled up abrasive material, and through discharging cleaning plant 103, the rule after the demoulding is piled up abrasive material and fallen in the finished product collection device 102; Obtain rule and pile up the abrasive material unit, shape is seen Fig. 3, a2 ~ d2; Rule is piled up the size of abrasive material: thickness H:0.3mm; Circumscribed circle diameter D:3mm; Gained partial desiccation product 120 ℃ of dryings of temperature 2 hours, ~ 170 ℃ of dryings solidified and accomplish in 3 hours.Can obtain at least two parallel surfaces " regular cold dome amasss abrasive material "; Rule after the curing is piled up abrasive product, can produce rule through the coated abrasive tool production unit that contains special procedure and pile up the abrasive material emery cloth.
Embodiment 3: have the preparation that has at least two parallel surface rules to pile up abrasive material
With the 5Kg median size be: the brown corundum of 15.3 μ m, lime carbonate 0.1Kg, potassium fluoborate 0.2Kg, al oxide 0.15Kg, talcum powder 0.1Kg put into the dry powder mixer and mixed 15 minutes; Put into single pot of mixer then; The polyacrylamide solution that adds 3.0Kg modified water glass and 1.5% is an amount of; Mix, adjustment viscosity is at 30000cps; Put into Fig. 1 and add stand materials device 108, the whipping appts in the device 108 is in the continuously stirring state; Slurry is filled in the mesh Steel Strip Die 104 of movement continuously rule, and mold shape is seen Fig. 3, a3 circular hole; Get into drying installation 106 dryings, the rule that obtains the partial desiccation typing is piled up abrasive material, and through discharging cleaning plant 103, the rule after the demoulding is piled up abrasive material and fallen in the finished product collection device 102; Obtain rule and pile up the abrasive material unit; Rule is piled up the size of abrasive material: thickness H:0.3mm; Circumscribed circle diameter D:3mm; Gained partial desiccation product 120 ℃ of dryings of temperature 2 hours, ~ 170 ℃ of dryings solidified and accomplish in 3 hours.Can obtain at least two parallel surfaces " regular cold dome amasss abrasive material "; Rule after the curing is piled up abrasive product.
Embodiment 4: the preparation of the inorganic accumulation abrasive material of equivalance shape
The preparation inorganic bonding agent is piled up abrading-body: with the 5Kg median size be: the silit of 125 μ m is put into the dry powder mixer and was mixed 15 minutes with, wollastonite 0.3Kg, sodium aluminum fluoride 0.2Kg, al oxide 0.2Kg, terra alba 0.1Kg, pigment iron oxide black 0.04Kg; Put into single pot of mixer then; It is an amount of to add 2.3Kg modified water glass (this experiment is the buying of the modest Science and Technology Ltd. of moral from Xi'an with modified water glass) and 1.5% polyacrylamide solution; Mix, adjustment viscosity is at 30000cps; Process moistening material, put into the pair roller rolling device and be pressed into strip, seasoning 12 hours, 65 ℃ of dryings are 2 hours again; Products obtained therefrom is broken, screening; The particle that required accumulation abrasive grain particle diameter is controlled at the approximate equivalance shape of 0.7 ~ 0.85mm; Products obtained therefrom in 2 hours completely solidified of 2 hours, 150 ℃ dryings of 2 hours, 107 ℃ dryings of 93 ℃ of dryings, is sieved again, obtain the accumulation abrasive material of required particle diameter;
The preparation process of accumulation abrasive material emery cloth of the present invention is following:
A, following material is processed primer, be coated on the base material after treatment; Said primer is taken from any one in following two kinds of primers; Wherein a kind of is that feedstock production by the following weight ratio forms: as the resol 55 ~ 75% of wedding agent; As the lime carbonate 25 ~ 45% of grinding aid material, as the tensio-active agent 0.1 ~ 0.5% of additive; A kind of is that feedstock production by the following weight ratio forms: epoxy resin 37 ~ 57%, solidifying agent 19 ~ 29%, thinner 14 ~ 44%; Said tensio-active agent is taken from tween 20, and said solidifying agent is taken from polyamide 6 50, and said thinner is taken from toluene, butanols;
B, employing electrostatic sand-planting machine will be piled up abrasive material and evenly be implanted in substrate material surface; Or adopt gravity to plant to pile up abrasive material through slippage roll extrusion spreader again behind the sand and evenly divide on matrix surface;
After c, process are planted sand; Through behind the primary drying, apply one deck again and be mixed and made into multiple glue by wedding agent, grinding aid material, additive, wherein said multiple glue is that the feedstock production by the following weight ratio forms: as the resol 55 ~ 90% of wedding agent; Lime carbonate 10 ~ 45% as the grinding aid material; As the tensio-active agent 0.1 ~ 0.5% of additive, red stone 1 ~ 8%, wherein said tensio-active agent is taken from tween 20; Rolling after redrying, and then warp solidifies, flexure becomes rule and piles up abrasive material coated abrasive tool product; Wherein the primary drying temperature is at 65 ℃ ~ 105 ℃, and the time is controlled at 30min ~ 90min; The redrying temperature is at 65 ℃ ~ 95 ℃, and the time is controlled at 120min ~ 180min.
Embodiment 5: gravity is planted the sand method and is produced accumulation abrasive material emery cloth
With wedding agent is resol 60%; The grinding aid material is a lime carbonate 39.8%; Additive is after tensio-active agent 0.2% mixes, to process primer, is coated on after treatment the base material (see among Fig. 5 501) through primer machine (see among Fig. 5 502); Through gravity sand-planting machine (seeing Fig. 5 508); The accumulation abrasive material that embodiment 4 in the sandbox B (among Fig. 5 507) is processed drops on the base material, will pile up abrasive material through slippage roll extrusion spreader (seeing Fig. 5 509, Fig. 6) again and evenly divide on matrix surface, pass through primary drying stove (see among Fig. 5 510), primary drying temperature 70 ℃ 15 minutes, 80 ℃ 30 minutes, 95 ℃ 30 minutes, 105 ℃ 15 minutes; Again with wedding agent resol 70%; The grinding aid material is a lime carbonate 22.8%; Additive is a tensio-active agent 0.2%, and red stone 7% grade is processed multiple glue after mixing; Through the multiple glue of multiple glue machine (see among Fig. 5 511), again advance redrying stove (see among Fig. 5 512), redrying temperature 75 ℃ 15 minutes, 80 ℃ 45 minutes, 90 ℃ 45 minutes, 95 ℃ 45 minutes, rolling behind the complete drying (see among Fig. 5 513); And then become rule through top temperature 120 ℃ of curing, flexures and pile up the abrasive material emery cloth.
Embodiment 6: the electrostatic sand-planting method is produced and is piled up the abrasive material emery cloth
With wedding agent is resol 60%; The grinding aid material is a lime carbonate 39.8%, and additive is after tensio-active agent 0.2% mixes, to process primer; Be coated on after treatment the base material (see among Fig. 5 501) through primer machine (see among Fig. 5 502); The accumulation abrasive material of being processed by embodiment 1 in the sandbox A (among Fig. 5 505) is dropped on antistatic conveying belt (see among Fig. 5 504), go up behind electrostatic sand-planting (see among Fig. 5 503), through track route A (seeing Fig. 5 A); Get into the primary drying stove, through primary drying stove (see among Fig. 5 510), primary drying temperature 70 ℃ 15 minutes, 80 ℃ 30 minutes, 95 ℃ 30 minutes, 105 ℃ 15 minutes; Again with wedding agent resol 70%; The grinding aid material is a lime carbonate 22.8%; Additive is a tensio-active agent 0.2%, and red stone 7% grade is processed multiple glue after mixing; Through the multiple glue of multiple glue machine (see among Fig. 5 511), again advance redrying stove (see among Fig. 5 512), redrying temperature 75 ℃ 15 minutes, 80 ℃ 45 minutes, 90 ℃ 45 minutes, 95 ℃ 45 minutes, rolling behind the complete drying (see among Fig. 5 513); And then become rule through top temperature 120 ℃ of curing, flexures and pile up the abrasive material emery cloth.
To process emery cloth,, carry out grinding test making the endless abrasive belt that specification is 50*2100mm.Obtain the grinding result of Figure 10.Grinding condition: abrasive band LV: 39 meter per seconds; Grinding method: trolley wheel; The grinding time: each 200 seconds, 7800 seconds (130 minutes) of accumulative total; Grinding pressure: the 1st ~ 6 grinding pressure is that 21N, the 7th ~ 12 grinding pressure are that 26N, the 13rd ~ 18 grinding pressure are that 32N, the 19th ~ 32 grinding pressure are 37N.Workpiece: round brass rod, diameter 20 mm; The grinding result can find out that to pile up the stock removal difference in abrasive material abrasive band and individual layer abrasive band in initial 20 times (about 66 minutes of grinding time) not remarkable on scheme; But when grinding this moment pressure increases to 37N; The individual layer abrasive band has just obviously been strengthened with the gap of piling up the abrasive material abrasive band, and the stock removal of piling up the abrasive material abrasive band tends towards stability.(individual layer abrasive material residual thickness is 0.09mm; Piling up abrasive material abrasive band abrasive material residual thickness is 0.48mm), therefore can obtain very long abrasive band of life-span, this has certain requirement except the abrasive band is made, and depends primarily on the accumulation abrading-body.
Embodiment 7: method of use three: the abrasive material complex body directly is deposited on the treated matrix, processes the accumulation abrasive material emery cloth with at least two parallel surfaces:
With the 5Kg median size be: the silit of 80 μ m is put into the dry powder mixer and was mixed 15 minutes with, wollastonite 0.25Kg, sodium aluminum fluoride 0.2Kg, al oxide 0.15Kg, graphite 0.1Kg, pigment iron oxide black 0.04Kg; Put into single pot of mixer then; The polyacrylamide solution that adds 2.3Kg modified water glass and 1.5% is an amount of; Mix, adjustment viscosity is at 30000cps; Put into Fig. 2 and add stand materials device 209, the whipping appts in the device 209 is in the continuously stirring state; Slurry is filled in the mesh Steel Strip Die 205 of movement continuously rule, and mold shape sees that Fig. 3, a3 are cylindrical, hole hole dimension: thickness 0.4mm, diameter 3mm; Slurry drops on the body material 211; Body material 211 is handled through conventional matrix typing before this; The treatment process that this experiment is adopted be through singe, destarch, stretching, dryness finalization; Re-use resol, butadiene acrylonitrile rubber breast, PVA is that main material manage through three arounds, specifically: dipping, carry on the back and be coated with, just be coated with.Through 212 the starching charge level is added moist the processing again; The body material 211 of this moment is synchronized with the movement with mesh punching block band 205 and annular lining band 206, then gets into primary drying device 207 dryings, after 105 ℃, 2 minutes; The rule that obtaining the partial desiccation typing has matrix to rely on is piled up abrasive material; Get into redrying stove 202 after the demoulding,, reel and pile up abrasive material emery cloth finished product 201 through 80 ℃ 0.5 hour, 90 ℃ 1.5 hours, 105 ℃ 0.5 hour completely solidified.
It is made the endless abrasive belt that specification is 50*2100mm, carry out grinding test.Grinding condition: abrasive band LV: 39 meter per seconds; Grinding method: trolley wheel; The grinding time: each 400 seconds, grinding pressure: be for the 1st ~ 6 time 26N, the 7th ~ 12 time for 37N, be 46N the 13rd ~ 23 time.From grinding as a result Figure 11 can find out: the stock removal difference that grinding pressure is piled up abrasive material abrasive band and individual layer abrasive band in initial 12 times (80 minutes grinding time) is little; But when grinding pressure increases to 46N; The individual layer abrasive band has just obviously been strengthened with the gap of piling up the abrasive material abrasive band, and the stock removal of piling up the abrasive material abrasive band tends towards stability.(individual layer abrasive material residual thickness is 0.06mm; Piling up abrasive material abrasive band abrasive material residual thickness is 0.48mm).
The grinding experiment situation:
Experiment condition: abrasive band LV: 39 meter per seconds.
125 μ m grinding pressure and time are seen Figure 10:
Wherein: lateral coordinates is the grinding number of times, each 400 seconds; The 1st ~ 6 grinding pressure is that 21N, the 7th ~ 12 grinding pressure are that 26N, the 13rd ~ 18 grinding pressure are that 32N, the 19th ~ 32 grinding pressure are 37N.
80 μ m grinding pressure and time are seen Figure 11:
Wherein lateral coordinates is the grinding number of times, each 400 seconds; The 1st ~ 6 grinding pressure is that 26N, the 7th ~ 12 grinding pressure are that 37N, the 13rd ~ 23 grinding pressure are 46N.
Grinding method: trolley wheel
The grinding workpiece material is respectively: brass; See table 1 for details:
Table 1
Claims (9)
1. an inorganic bonding agent is piled up abrasive material, it is characterized in that: the material composition and the preparation process of said accumulation abrasive material are following:
A, by weight getting: particle diameter is 8.4 ~ 350 microns abrasive material single particle crowd 50 ~ 85%, inorganic materials wedding agent 15 ~ 50%, wetting agent 5 ~ 25%, active heat-sink material 1 ~ 30%, the hibbsite 1 ~ 10% as the inorganic endothermic material, inertia grinding aid material 1 ~ 35% and lubricant 0 ~ 5%, an additive 0 ~ 8%; Any one method among B, the following a of employing or the b prepares:
A. the powder section mixing in the A step being drawn materials is put into mixer and is mixed; Liquid portion in afterwards the A step being drawn materials adds mixing gradually; Adjustment viscosity is at 15000cps ~ 50000cps; Be preferably in 25000cps ~ 40000cps, slurry is filled in the mould, it is dry to get into drying installation; The rule that obtains the typing of drying or partial desiccation is piled up abrasive material, and the size control that rule is piled up abrasive material exists: thickness H:0.15 ~ 4mm; Circumscribed circle diameter D:0.5 ~ 12mm; Gained partial desiccation product can obtain the long-pending abrasive material of regular cold dome of at least two parallel surfaces in top temperature complete drying, curing below 125 ~ 185 ℃;
B, the powder section mixing during the A step drawn materials are put into mixing equipment; Liquid portion in afterwards the A step being drawn materials adds batch mixing, processes moistening material, puts into the pair roller rolling device and is pressed into sheet or list structure, dry below 100 ℃; Products obtained therefrom is broken, screening; Required accumulation abrasive grain particle diameter is controlled at 0.15 ~ 3.35mm; Particle diameter commonly used is at the particle of the approximate equivalance shape of 0.3 ~ 1mm; Products obtained therefrom in 125 ~ 185 ℃ of following completely solidified of top temperature, is sieved again, promptly obtain the long-pending abrasive material of approximate equivalance shape cold dome of required particle diameter.
2. inorganic bonding agent according to claim 1 is piled up abrasive material, it is characterized in that: described abrasive material single particle is taken from any one or the two or more mixture in brown corundum, white fused alumina, microcrystal fused alumina, chromium corundum, silit or the zircon corundum.
3. inorganic bonding agent according to claim 1 is piled up abrasive material, and it is characterized in that: said inorganic materials wedding agent is water-soluble modified water glass.
4. inorganic bonding agent according to claim 1 is piled up abrasive material, and it is characterized in that: said active heat-sink material is fluorine-containing metal-salt, takes from any one or mixture in sodium aluminum fluoride, potassium fluoborate or the Sodium tetrafluoroborate.
5. inorganic bonding agent according to claim 1 is piled up abrasive material, it is characterized in that: said inertia grinding aid material is taken from any one or the mixture in lime carbonate, calcium sulfate, wollastonite or the talcum powder.
6. inorganic bonding agent according to claim 1 is piled up abrasive material, it is characterized in that: said lubricant is taken from any one or the mixture in the metal-salt of graphite, talcum powder, Magnesium Stearate, terra alba etc.
7. inorganic bonding agent according to claim 1 is piled up abrasive material, it is characterized in that: said additive is taken from any one or mixture of pigment, dyestuff or softening agent; Said pigment is taken from oxide compound, sulfide, vitriol, chromic salt, molybdate or inorganic salt and the carbon black of metal or in the blue or green pigment pigment dyestuff of phthalein any one; Dyestuff is taken from high temperature resistant dyestuff; Softening agent is got SEPIGEL 305.
8. inorganic bonding agent according to claim 1 is piled up abrasive material, and it is characterized in that: said wetting agent is taken from water etc.
9. the method that adopts claims 1 said inorganic bonding agent to pile up abrasive material production accumulation abrasive material emery cloth is characterized in that: the preparation process of said method is following:
A, following material is processed primer, be coated on the base material after treatment; Said primer is taken from any one in following two kinds of primers; Wherein a kind of is that feedstock production by the following weight ratio forms: as the resol 55 ~ 75% of wedding agent; As the lime carbonate 25 ~ 45% of grinding aid material, as the tensio-active agent 0.1 ~ 0.5% of additive; A kind of is that feedstock production by the following weight ratio forms: epoxy resin 37 ~ 57%, solidifying agent 19 ~ 29%, thinner 14 ~ 44%; Said tensio-active agent is taken from tween 20, and said solidifying agent is taken from polyamide 6 50, and said thinner is taken from toluene, butanols;
B, employing electrostatic sand-planting machine will be piled up abrasive material and evenly be implanted in substrate material surface; Or adopt gravity to plant to pile up abrasive material through slippage roll extrusion spreader again behind the sand and evenly divide on matrix surface;
After c, process are planted sand; Through behind the primary drying, apply one deck again and be mixed and made into multiple glue by wedding agent, grinding aid material, additive, wherein said multiple glue is that the feedstock production by the following weight ratio forms: as the resol 55 ~ 90% of wedding agent; Lime carbonate 10 ~ 45% as the grinding aid material; As the tensio-active agent 0.1 ~ 0.5% of additive, red stone 1 ~ 8%, wherein said tensio-active agent is taken from tween 20; Rolling after redrying, and then warp solidifies, flexure becomes rule and piles up abrasive material coated abrasive tool product; Wherein the primary drying temperature is at 65 ℃ ~ 105 ℃, and the time is controlled at 30min ~ 90min; The redrying temperature is at 65 ℃ ~ 95 ℃, and the time is controlled at 120min ~ 180min.
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| CN103100952A (en) * | 2012-11-13 | 2013-05-15 | 苏州谷力生物科技有限公司 | Method of grinding material through abrasive belt |
| CN103111960A (en) * | 2012-11-13 | 2013-05-22 | 湖北天马研磨材料有限公司 | 45-degree stretching softening and curving producing technology and device for paper-base sanding belts |
| CN103231319A (en) * | 2013-05-06 | 2013-08-07 | 湖北丰普研磨科技有限公司 | Heavy powerful paper base abrasive belt and preparation method thereof |
| CN103317451A (en) * | 2013-06-09 | 2013-09-25 | 陕西德赛新材料科技有限公司 | Grinding material production device |
| CN103992681A (en) * | 2014-06-03 | 2014-08-20 | 洛阳惠尔纳米科技有限公司 | Super environment-friendly coating for abrasive paper, abrasive cloth and abrasive belt and preparation method of coating |
| CN107263345A (en) * | 2017-07-31 | 2017-10-20 | 谢泽 | A kind of coated abrasive tool plants sand device and method |
| CN110695864A (en) * | 2019-10-14 | 2020-01-17 | 淄博理研泰山涂附磨具有限公司 | Electrostatic sand planting method for coated abrasive tool and application thereof |
| CN117325090A (en) * | 2023-11-22 | 2024-01-02 | 东莞金太阳研磨股份有限公司 | Preparation process and application of high-strength stacked abrasive cloth |
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| CN103100952A (en) * | 2012-11-13 | 2013-05-15 | 苏州谷力生物科技有限公司 | Method of grinding material through abrasive belt |
| CN103111960A (en) * | 2012-11-13 | 2013-05-22 | 湖北天马研磨材料有限公司 | 45-degree stretching softening and curving producing technology and device for paper-base sanding belts |
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| CN103992681A (en) * | 2014-06-03 | 2014-08-20 | 洛阳惠尔纳米科技有限公司 | Super environment-friendly coating for abrasive paper, abrasive cloth and abrasive belt and preparation method of coating |
| CN107263345A (en) * | 2017-07-31 | 2017-10-20 | 谢泽 | A kind of coated abrasive tool plants sand device and method |
| CN110695864A (en) * | 2019-10-14 | 2020-01-17 | 淄博理研泰山涂附磨具有限公司 | Electrostatic sand planting method for coated abrasive tool and application thereof |
| CN110695864B (en) * | 2019-10-14 | 2021-04-20 | 淄博理研泰山涂附磨具有限公司 | Electrostatic sand planting method for coated abrasive tool and application thereof |
| CN117325090A (en) * | 2023-11-22 | 2024-01-02 | 东莞金太阳研磨股份有限公司 | Preparation process and application of high-strength stacked abrasive cloth |
| CN117325090B (en) * | 2023-11-22 | 2024-04-30 | 东莞金太阳研磨股份有限公司 | Preparation process and application of high-strength stacked abrasive cloth |
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Denomination of invention: Inorganic binding agent stacked abrasive and method for manufacturing abrasive cloth from same Effective date of registration: 20150204 Granted publication date: 20140129 Pledgee: Dengfeng Henan rural commercial bank Limited by Share Ltd Pledgor: SONGSHAN SPECIAL MATERIAL GROUP Co.,Ltd. Registration number: 2015990000098 |
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