CN102729159B - Film-based electrostatic sand-planting grinding belt and preparation method thereof - Google Patents
Film-based electrostatic sand-planting grinding belt and preparation method thereof Download PDFInfo
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- CN102729159B CN102729159B CN201210250607.6A CN201210250607A CN102729159B CN 102729159 B CN102729159 B CN 102729159B CN 201210250607 A CN201210250607 A CN 201210250607A CN 102729159 B CN102729159 B CN 102729159B
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Abstract
The invention provides a film-based electrostatic sand-planting grinding belt and a preparation method thereof. The film-based electrostatic sand-planting grinding belt has the advantages of good chip removal capability, high cutting force, low possibility of blockage and sand drop, long life and the like, thus more efficiently polishing metal sticks, crankshafts and the like to meet the requirement of surface roughness. The grinding belt is characterized in that the grinding belt comprises a film base material, coating layers coated on the surface of the film base material and micron-sized grinding materials embedded in the coating layers; the coating layers include a primer layer and a compound adhesive layer which are stacked in sequence; the primer layer comprises primer layer fillers and a solvent adhesive; the primer layer fillers are selected from one of or the mixture of more than one of the following substances: calcium oxide, calcium carbonate and talcum powder; the grain sizes of the fillers are 5-30mu m; the compound adhesive layer comprises compound adhesive layer fillers and a solvent adhesive; the compound adhesive layer fillers are selected from one of or the mixture of more than one of the following substances: calcium oxide, calcium carbonate and talcum powder; and the grain sizes of the fillers are 5-30mu m.
Description
Technical field
The present invention relates to precise polished abradant lapping tape, particularly a kind of thin film based electrostatic sand-planting lapping tape and preparation method thereof.
Background technology
Bent axle is the main rotary gadget of engine, after loading onto connecting rod, reciprocating motion can be become rotary motion.Bent axle is
start machineon important parts, its material is made up of carbon structural steels or spheroidal graphite cast-iron.The trunnion of bent axle and connecting rod neck are two significant points.Trunnion is installed on cylinder body, and connecting rod neck is connected with crank pin end pore, connecting rod small end hole and cylinder
pistonconnect, be one typical
crankslide block mechanism.The lubrication of bent axle mainly refers to and the lubrication of bearing shell and the lubrication of two fixing point between rocking arm.The rotation of bent axle is the power source of engine.Also be whole
mechanical systemdriving source.Flourish along with domestic automobile industry, the bent axle industry as the important accessory of automobile also obtain huge development.Along with and what come is exactly that the demand of Crankshaft Machining consumptive material industry increases day by day.The machine glazed finish processing of bent axle can be divided into corase grind and fine grinding two parts, and corase grind Do-All, milling machine, crankshaft grinding machine are processed, and fine grinding then coordinates belt sander to carry out polishing with electrostatic sand-planting lapping tape, multiplex to fine granularity thin film based electrostatic sand-planting lapping tape during fine grinding.Metallic roll is the general designation of roller industry processed to metal, alloy steel products class roller, mainly comprises mirror roller, metal anilox roll, Corrugator roller etc.Wherein mirror roller is widely used in the surperficial press polish of leather, glass, people's leather, paper, ornament materials, non-ferrous metal, the various plastics such as PVC, ABA, PP, PE, PT, PC and dress materials.Being characterized in that material all selects 45# seamless steel pipe or steel alloy, forming through heat treatment, machining, and in the middle of mirror roller, runner or chuck are installed, cooling or the heating temperature difference be not more than ± and 1 DEG C, case hardness HRC55-58.Hardness HRC62 after chromium plating polishing.Thermal deformation is not more than 0.01mm.
Patent CN101607384A, describe a kind of preparation method of UEA116 super-precision grinding grinding belt, it with biaxial tension poly terephthalic acid second two membrane of lipoprotein for matrix, binding agent, crosslinking agent, solvent are made into mixed liquor A, B, mixed liquor A is coated on matrix with to roll application, then with electrostatic sand-planting law technology, abrasive material is implanted resin bed, with to roll application, mixed liquid B is coated to dried glue layer of sand surface again after predrying at 75-85 DEG C, then precuring at 75-85 DEG C, is finally cross-linked at normal temperatures.This lapping tape cutting force is low, chip removal poor performance, and easy drop, the life-span is short.
Summary of the invention
The present invention is directed to the defect or deficiency that exist in prior art, a kind of thin film based electrostatic sand-planting lapping tape and preparation method thereof is provided.Thin film based electrostatic sand-planting lapping tape of the present invention can have good chip removal ability, cutting force greatly, the advantage such as not easily blocking, not easily drop, life-span be long, thus can more efficient polishing metal rod, bent axle etc. make it meet the requirements of surface roughness.
Technical scheme of the present invention is as follows:
A kind of thin film based electrostatic sand-planting lapping tape, it is characterized in that, comprise film substrate, coat the coating layer on described film substrate surface, with the micron order abrasive material be embedded in described coating layer, described coating layer comprises the primer layer and multiple glue-line that stack gradually, and described primer layer comprises primer layer filler and solvent-based adhesive, described primer layer filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described primer layer filler is 5 ~ 30 μm; Described multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and described multiple glue-line filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described multiple glue-line filler is 5 ~ 30 μm.
Described multiple glue-line is also provided with super coating, and described super coating comprises super coated filler and solvent-based adhesive, and described super coated filler comprises talcum powder, also comprises titanium dioxide and/or zinc stearate.
The particle diameter of described super coated filler is 5 ~ 30 μm.
The particle diameter of described micron order abrasive material is 5 ~ 150 μm.
Described micron order abrasive material is that individual layer orientation is evenly distributed along described coating layer plane, and abrasive material tip upward.
Described micron order abrasive material is implanted in described primer layer by electrostatic sand-planting technology.
Described micron order abrasive material is aluminium oxide or carborundum.
The thickness of described film substrate is at 25 ~ 200 μm; Described film substrate is polyester film.
A preparation method for thin film based electrostatic sand-planting lapping tape, is characterized in that, comprise the following steps:
(1) powdery, granular or block resin are dissolved in solvent, make the adhesive that solid content is 10 ~ 90%;
(2) adhesive that primer layer filler and multiple glue-line filler obtain with step (1) is respectively mixed with certain proportion, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine to be uniformly dispersed, respectively obtained slurry A, slurry B; Described primer layer comprises primer layer filler and solvent-based adhesive, and described primer layer filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described filler is 5 ~ 30 μm; Described multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and described multiple glue-line filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described filler is 5 ~ 30 μm;
(3) mix surpassing coated filler with certain proportion with the adhesive that step (1) obtains, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine to be uniformly dispersed, obtained slurry C; Described super coated filler comprises talcum powder, also comprises titanium dioxide and/or zinc stearate;
(4) slurry A roll coater obtained for step (2) or flush coater are coated film substrate surface equably, form primer layer;
(5) evenly planted on primer layer by abrasive material by electrostatic sand-planting machine by the base material after gluing in step (4), at 80 ~ 130 DEG C, pre-dried makes primer layer dry;
(6) slurry B roll coater obtained for step (2) or flush coater are coated primer layer surface equably, form multiple glue-line, at 80 ~ 130 DEG C, precuring process makes multiple glue-line dry;
(7) slurry C roll coater obtained for step (3) or flush coater are coated multiple film surface equably, form super coating, at 80 ~ 130 DEG C, precuring process makes super coating dry, obtained thin-film grinding band;
(8) the thin-film grinding band that step (7) is obtained is solidified certain hour at a certain temperature.
Described solvent is one or more mixtures of benzene,toluene,xylene, butanone, cyclohexanone, ethyl acetate, acetone; Sand amount is planted at 1 ~ 300g/m by controlling sandbox gap, sediment transport tape speed, Coating Speed, polar plate spacing and the adjustment of electrostatic field voltage parameter when described electrostatic sand-planting machine plants sand
2.
The main feature of thin film based electrostatic sand-planting lapping tape of the present invention: individual layer orientation is evenly distributed upward for the micron order abrasive material tip making external form sharp by technique; Add that chip removal ability is strong, good heat dissipation, not susceptible to plugging super coating; Adopt the fillers such as micron order calcium carbonate, calcium oxide micro mist, greatly improve the shear strength of glue-line, not easily drop; Novel high polymer mylar is adopted to be adhesive; High, that percentage elongation is low and intensity the is high polyester film of flatness is adopted to be base material; Accurate processes means are adopted to obtain.This electrostatic sand-planting lapping tape is used for the precise finiss in metallic roll, bent axle field, the wet-milling that also can add water of can dry grinding.This lapping tape has that chip removal ability is strong, rapid heat dissipation, and not easily blocking, not easily drop, life-span such as to grow at the advantage, more efficient polishing metal rod, bent axle etc. can meet the requirements of surface roughness.
Accompanying drawing explanation
Fig. 1 is the structural representation of thin film based electrostatic sand-planting lapping tape of the present invention.
Fig. 2 is the surperficial SEM figure of thin film based electrostatic sand-planting lapping tape of the present invention.SEM refers to ESEM.
In figure, mark lists as follows: 1-film substrate; 2-primer layer; The multiple glue-line of 3-; 4-surpasses coating; 5-abrasive material.
Detailed description of the invention
Technical conceive of the present invention is: by the structure matching of adhesive and the selection of filler, by means of the high-voltage electrostatic field under reasonable process parameter, specific abrasive material is planted in the solvent-based adhesive of high-strength thin-film substrate surface, the not susceptible to plugging super coating of coated one deck more after drying, the lapping tape formed after drying solidification is in metallic roll, during bent axle polishing, abrasive material is sharp and have self-sharpening, common micro-scaled filler improves the shear strength of glue-line greatly, not easily drop, super coating chip removal ability is strong, substantially increase lapping tape life-span and grinding efficiency, can grinding metallic roll fast, bent axle, its surface roughness is met the demands.
Technical scheme of the present invention is: a kind of thin film based electrostatic sand-planting lapping tape, it is characterized in that, comprising will by common micro-scaled filler and solvent-based adhesive, solvent mixing disperses the slurry made to be spread evenly across the coating of substrate surface, form primer, the micron order abrasive material evenly implanting individual layer directional profile wherein by means of high-voltage electrostatic field is had in described primer, form glue layer of sand, one deck is had by common micro-scaled filler and solvent-based adhesive above described glue layer of sand, solvent mixing disperses the coating of the slurry even spread made, form multiple glue, one deck is also had to surpass coating above described multiple glue, described super coating is that chip removal ability is strong, good heat dissipation, not susceptible to plugging super coated filler and solvent-based adhesive, solvent mixing disperses the coating of the slurry even spread made, described base material is high strength, low elongation, the film substrate that surface smoothness is good, the particle diameter of described abrasive material is 5 ~ 150 μm.
Fig. 1 is the structural representation of thin film based electrostatic sand-planting lapping tape of the present invention.As shown in Figure 1, thin film based electrostatic sand-planting lapping tape comprises film substrate 1, and it is followed successively by primer layer 2, multiple glue-line 3 and super coating 4, abrasive material embeds wherein.Fig. 2 is the surperficial SEM figure of thin film based electrostatic sand-planting lapping tape of the present invention.SEM refers to ESEM.As shown in Figure 2, abrasive material tip upward.
The manufacture method of lapping tape provided by the invention comprises the following steps: powdery, granular or block resin are dissolved in solvent by (1), makes the adhesive that solid content is 10-90%; (2) adhesive that filler and step (1) obtain is mixed with certain proportion, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine to be fully uniformly dispersed, respectively obtained slurry A, B.(3) mix surpassing coated filler with certain proportion with the adhesive that step (1) obtains, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine to be fully uniformly dispersed, respectively obtained slurry C.(4) slurry A roll coater obtained for step (2) or flush coater are coated film substrate surface equably.(5) evenly planted on glue-line by abrasive material by high-voltage electrostatic field by the base material after gluing in step (4), at 80-130 DEG C, pre-dried makes glue-line dry.(6) slurry roll coater obtained for step (2) or flush coater are coated equably the obtained thin film based lapping tape surface of step (4), at 80-130 DEG C, precuring process makes glue-line dry.(7) slurry roll coater obtained for step (3) or flush coater are coated equably the obtained thin film based lapping tape surface of step (6), at 80-130 DEG C, precuring process makes glue-line dry.(8) solidify 72 hours at 110 DEG C.
Method of the present invention, regulates coating layer thickness at 1-30 micron by conditions such as control roll speed, linear speed, roller gaps during coating.Method of the present invention, plants sand amount at 1 ~ 300g/m by controlling the condition adjustments such as sandbox gap, sediment transport tape speed, Coating Speed, polar plate spacing, electrostatic field voltage when planting sand
2.Described resin comprises one or more mixtures in epoxy resin, phenolic resins, modified starch, polyurethane, polyacrylamide, polyester.Described filler is mainly calcium oxide, calcium carbonate, one or more mixtures talcous, and particle diameter is 5 ~ 30 μm.Described super coated filler is mainly one or more mixtures of talcum powder, titanium dioxide, zinc stearate, and particle diameter is 5 ~ 30 μm.Described abrasive material is mainly aluminium oxide, carborundum, and particle diameter is 5 ~ 150 μm.Described abrasive material and the mixed proportion of adhesive are 1:9 ~ 9:1.Described solvent is one or more mixtures of benzene,toluene,xylene, butanone, cyclohexanone, ethyl acetate, acetone.Described film substrate has higher hot strength and solvent resistance, heat resistance, comprises various plastic sheeting, and as polyurethane, Merlon, polyamide, polypropylene, polyester, polyethylene, polyvinyl chloride, thickness is at 25-200 μm.From mechanical strength and coating homogeneity, biaxially oriented polyester film or polyamide film are the most suitable.In addition, surface treatment can be carried out to film as required, comprise sided corona treatment, surface grafting polymerization thing or precoated shet process etc.Also need in described slurry to add some additives: coupling agent, antistatic additive, wetting agent, dispersant, add suitable amount as required.Method of the present invention dispersing apparatus used comprises ball mill, sand mill or ultrasonic dispersing machine, should control jitter time, make slurry dispersed, do not produce reunion.Described solidification refers to: product, after the dry road drying of coating machine, is placed 5 ~ 100 hours, regulated suitable temperature and time to carry out completely to make curing reaction at 40 ~ 150 DEG C.According to requirements, lapping tape can be cut into the shape such as square piece, disk, winding of various sizes.
Example 1:
Step one gets the calcium carbonate fine powder that 800g median particle diameter is 5 microns, 200g median particle diameter is the calcium oxide micro mist of 10 microns, 3000g solid content is the polyester adhesive of 30%, and 1500g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilizes ball mill that it is fully disperseed 48 hours, then add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Utilizing roll coater to be coated with uniformly by above-mentioned painting slurry with the speed of 15m/min, to invest thickness be that on the film tape base of 125 microns, then under sandbox, sand amount is adjusted to 150g/m
2, polar plate spacing is 50mm, electrostatic field voltage is 60,000 volts, sediment transport tape speed is set as 8m/min, after gluing, base material is by sand-planting machine, and the alumina abrasive grain being 60 microns by median particle diameter by high-voltage electrostatic field is planted on base material glue-line, rolling after 120 DEG C of heated-air dryings.
Step 2 gets the calcium carbonate fine powder that 1000g median particle diameter is 10 microns, 1500g solid content is the polyester adhesive of 30%, 3000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Roll coater is utilized to be coated with uniformly by above-mentioned painting slurry to invest in step one and to plant on the abrasive band after sand, rolling after 120 DEG C of heated-air dryings.
Step 3 gets the talcum powder micro mist that 600g median particle diameter is 10 microns, 400g median particle diameter is the zinc stearate micro mist of 10 microns, 2000g solid content is the polyester adhesive of 30%, 1000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.On the abrasive band utilizing roll coater to be coated with uniformly by above-mentioned painting slurry to invest step 2 gained, rolling after 120 DEG C of heated-air dryings.Solidify 72 hours at 110 DEG C, namely make thin film based electrostatic sand-planting lapping tape of the present invention.
Example 2:
Step one gets the calcium carbonate fine powder that 600g median particle diameter is 5 microns, 400g median particle diameter is the calcium oxide micro mist of 10 microns, 2000g solid content is the polyester adhesive of 30%, and 2000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilizes ball mill that it is fully disperseed 48 hours, then add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Utilizing roll coater, with the speed of 15m/min, above-mentioned painting slurry is coated on thickness is uniformly on the film tape base of 125 microns, and then after gluing, base material is by sand-planting machine, and then under sandbox, sand amount is adjusted to 120g/m
2, polar plate spacing is 50mm, electrostatic field voltage is 60,000 volts, sediment transport tape speed is set as 8m/min, and the alumina abrasive grain being 30 microns by median particle diameter by high-voltage electrostatic field is planted on base material glue-line, rolling after 120 DEG C of heated-air dryings.
Step 2 gets the calcium carbonate fine powder that 1000g median particle diameter is 10 microns, 1000g solid content is the polyester adhesive of 30%, 3500g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Roll coater is utilized to be coated with uniformly by above-mentioned painting slurry to invest in step one and to plant on the abrasive band after sand, rolling after 120 DEG C of heated-air dryings.
Step 3 gets the talcum powder micro mist that 600g median particle diameter is 10 microns, 400g median particle diameter is the zinc stearate micro mist of 10 microns, 2000g solid content is the polyester adhesive of 30%, 1000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.On the abrasive band utilizing roll coater to be coated with uniformly by above-mentioned painting slurry to invest step 2 gained, rolling after 120 DEG C of heated-air dryings.Solidify 72 hours at 110 DEG C, namely make thin film based electrostatic sand-planting lapping tape of the present invention.
Example 3
Step one gets the calcium carbonate fine powder that 1500g median particle diameter is 5 microns, 3000g solid content is the polyester adhesive of 30%, 1500g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Utilizing roll coater to be coated with uniformly by above-mentioned painting slurry with the speed of 15m/min, to invest thickness be that on the film tape base of 125 microns, then under sandbox, sand amount is adjusted to 100g/m
2, polar plate spacing is 50mm, electrostatic field voltage is 50,000 volts, sediment transport tape speed is set as 8m/min, then after gluing, base material is by sand-planting machine, and the alumina abrasive being 15 microns by median particle diameter by high-voltage electrostatic field is planted on base material glue-line, rolling after 120 DEG C of heated-air dryings.
Step 2 gets the calcium carbonate fine powder that 1500g median particle diameter is 5 microns, 1500g solid content is the polyester adhesive of 30%, 3000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Roll coater is utilized to be coated with uniformly by above-mentioned painting slurry to invest in step one and to plant on the abrasive band after sand, rolling after 120 DEG C of heated-air dryings.
Step 3 gets the talcum powder micro mist that 600g median particle diameter is 10 microns, 400g median particle diameter is the zinc stearate micro mist of 10 microns, 2000g solid content is the polyester adhesive of 30%, 1000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.On the abrasive band utilizing roll coater to be coated with uniformly by above-mentioned painting slurry to invest step 2 gained, rolling after 120 DEG C of heated-air dryings.Solidify 72 hours at 110 DEG C, namely make thin film based electrostatic sand-planting lapping tape of the present invention.
Example 4:
Step one gets the calcium carbonate fine powder that 1500g median particle diameter is 5 microns, 3500g solid content is the polyester adhesive of 30%, 1000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Utilizing roll coater to be coated with uniformly by above-mentioned painting slurry with the speed of 15m/min, to invest thickness be that on the film tape base of 125 microns, then under sandbox, sand amount is adjusted to 100g/m
2, polar plate spacing is 50mm, electrostatic field voltage is 50,000 volts, sediment transport tape speed is set as 8m/min, then after gluing, base material is by sand-planting machine, and the abrasive particle abrasive particle being 9 microns by median particle diameter by high-voltage electrostatic field is planted on base material glue-line, rolling after 120 DEG C of heated-air dryings.
Step 2 gets the calcium carbonate fine powder that 1000g median particle diameter is 5 microns, 1500g solid content is the polyester adhesive of 30%, 3000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, above-mentioned mixed liquor proceeds in ball mill dispersion tank, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.Roll coater is utilized to be coated with uniformly by above-mentioned painting slurry to invest in step one and to plant on the abrasive band after sand, rolling after 120 DEG C of heated-air dryings.
Step 3 gets the talcum powder micro mist that 600g median particle diameter is 10 microns, 400g median particle diameter is the zinc stearate micro mist of 10 microns, 2000g solid content is the polyester adhesive of 30%, 1000g solid content is the phenol glue of 20%, 2400g ethyl acetate, 900g butanone, 450g dimethylbenzene, utilize ball mill that it is fully disperseed 48 hours, then add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai), stir formation painting slurry.On the abrasive band utilizing roll coater to be coated with uniformly by above-mentioned painting slurry to invest step 2 gained, rolling after 120 DEG C of heated-air dryings.Solidify 72 hours at 110 DEG C, namely make thin film based electrostatic sand-planting lapping tape of the present invention.
Example 5:
This example is application examples.Lapping tape obtained in above-mentioned example 1-4 is cut into the winding of 101.6mmX45m, the polishing machine utilizing Shantou gold really to manufacture, carries out mirror roller polishing experiments under the condition shown in subordinate list 1.Experiment terminates test minute surface roll surface roughness Ra<0.012 μm i.e. fineness and reaches 14 grades, meets mirror roller polishing requirement.Subordinate list 1 is as follows:
It should be pointed out that the above embodiment can make the present invention of those skilled in the art's comprehend, but do not limit the present invention in any way.Therefore, although this description is to present invention has been detailed description, it will be appreciated by those skilled in the art that and still can modify to the present invention or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of Spirit Essence of the present invention, it all should be encompassed in the middle of the protection domain of patent of the present invention.
Claims (8)
1. a thin film based electrostatic sand-planting lapping tape, it is characterized in that, comprise film substrate, coat the coating layer on described film substrate surface, with the micron order abrasive material be embedded in described coating layer, described coating layer comprises the primer layer and multiple glue-line that stack gradually, described primer layer comprises primer layer filler and solvent-based adhesive, described primer layer filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described primer layer filler is 5 ~ 30 μm; Described multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and described multiple glue-line filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described multiple glue-line filler is 5 ~ 30 μm;
Described solvent-based adhesive is dissolved in solvent by powdery, granular or block resin, makes the adhesive that solid content is 10 ~ 90%; Described solvent is one or more mixtures of benzene,toluene,xylene, butanone, cyclohexanone, ethyl acetate, acetone; Described resin comprises several mixtures in epoxy resin, phenolic resins, modified starch, polyurethane, polyacrylamide, polyester;
Described multiple glue-line is also provided with super coating, and described super coating comprises super coated filler and solvent-based adhesive, and described super coated filler comprises talcum powder, also comprises titanium dioxide and/or zinc stearate.
2. thin film based electrostatic sand-planting lapping tape according to claim 1, is characterized in that, the particle diameter of described super coated filler is 5 ~ 30 μm.
3. thin film based electrostatic sand-planting lapping tape according to claim 1, is characterized in that, the particle diameter of described micron order abrasive material is 5 ~ 150 μm.
4. thin film based electrostatic sand-planting lapping tape according to claim 1, is characterized in that, described micron order abrasive material is that individual layer orientation is evenly distributed along described coating layer plane, and abrasive material tip upward.
5. thin film based electrostatic sand-planting lapping tape according to claim 1, is characterized in that, described micron order abrasive material is implanted in described primer layer by electrostatic sand-planting technology.
6. thin film based electrostatic sand-planting lapping tape according to claim 1, is characterized in that, described micron order abrasive material is aluminium oxide or carborundum.
7. thin film based electrostatic sand-planting lapping tape according to claim 1, is characterized in that, the thickness of described film substrate is at 25 ~ 200 μm; Described film substrate is polyester film.
8. a preparation method for thin film based electrostatic sand-planting lapping tape, is characterized in that, comprises the following steps:
(1) powdery, granular or block resin are dissolved in solvent, make the adhesive that solid content is 10 ~ 90%; Described resin comprises several mixtures in epoxy resin, phenolic resins, modified starch, polyurethane, polyacrylamide, polyester;
(2) adhesive that primer layer filler and multiple glue-line filler obtain with step (1) is respectively mixed with certain proportion, and add certain solvent, ball mill, sand mill or ultrasonic dispersing machine is used to be uniformly dispersed, respectively obtained slurry A, slurry B; Described primer layer filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described primer layer filler is 5 ~ 30 μm; Described multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and described multiple glue-line filler is selected from a kind of of following material or exceedes a kind of mixture: calcium oxide, calcium carbonate, talcum powder, and the particle diameter of described multiple glue-line filler is 5 ~ 30 μm;
(3) mix surpassing coated filler with certain proportion with the adhesive that step (1) obtains, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine to be uniformly dispersed, obtained slurry C; Described super coated filler comprises talcum powder, also comprises titanium dioxide and/or zinc stearate;
(4) slurry A roll coater obtained for step (2) or flush coater are coated film substrate surface equably, form primer layer;
(5) evenly planted on primer layer by abrasive material by electrostatic sand-planting machine by the base material after gluing in step (4), at 80 ~ 130 DEG C, pre-dried makes primer layer dry;
(6) slurry B roll coater obtained for step (2) or flush coater are coated primer layer surface equably, form multiple glue-line, at 80 ~ 130 DEG C, precuring process makes multiple glue-line dry;
(7) slurry C roll coater obtained for step (3) or flush coater are coated multiple film surface equably, form super coating, at 80 ~ 130 DEG C, precuring process makes super coating dry, obtained thin-film grinding band;
(8) the thin-film grinding band that step (7) is obtained is solidified certain hour at a certain temperature;
Described solvent is one or more mixtures of benzene,toluene,xylene, butanone, cyclohexanone, ethyl acetate, acetone; Sand amount is planted at 1 ~ 300g/m by controlling sandbox gap, sediment transport tape speed, Coating Speed, polar plate spacing and the adjustment of electrostatic field voltage parameter when described electrostatic sand-planting machine plants sand
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210250607.6A CN102729159B (en) | 2012-07-19 | 2012-07-19 | Film-based electrostatic sand-planting grinding belt and preparation method thereof |
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| CN201210250607.6A CN102729159B (en) | 2012-07-19 | 2012-07-19 | Film-based electrostatic sand-planting grinding belt and preparation method thereof |
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| CN102729159A CN102729159A (en) | 2012-10-17 |
| CN102729159B true CN102729159B (en) | 2015-01-07 |
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| CN201210250607.6A Active CN102729159B (en) | 2012-07-19 | 2012-07-19 | Film-based electrostatic sand-planting grinding belt and preparation method thereof |
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| CN104511846B (en) * | 2013-11-19 | 2016-11-16 | 东莞金太阳研磨股份有限公司 | A kind of preparation method of thin film abrasive paper |
| CN103770026A (en) * | 2014-01-10 | 2014-05-07 | 当涂县南方红月磨具磨料有限公司 | Ceramic black corundum grinding wheel |
| CN103862398A (en) * | 2014-04-03 | 2014-06-18 | 江苏锋芒复合材料科技集团有限公司 | Method for preparing waterproof thin film abrasive paper |
| CN104400675A (en) * | 2014-10-28 | 2015-03-11 | 山东中大药业有限公司 | Resin-based grinding wheel material and preparation process thereof |
| CN109866115B (en) * | 2018-12-28 | 2021-09-03 | 绍兴自远磨具有限公司 | Method for preparing diamond grinding material by adopting electrostatic sand planting process |
| CN113927494B (en) * | 2021-10-29 | 2023-03-17 | 北京国瑞升科技股份有限公司 | Grinding belt and preparation method thereof |
| CN114851038A (en) * | 2022-07-06 | 2022-08-05 | 翔实光电科技(昆山)有限公司 | Polishing machine and polishing equipment with same |
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