CN102729159A - 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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- CN102729159A CN102729159A CN2012102506076A CN201210250607A CN102729159A CN 102729159 A CN102729159 A CN 102729159A CN 2012102506076 A CN2012102506076 A CN 2012102506076A CN 201210250607 A CN201210250607 A CN 201210250607A CN 102729159 A CN102729159 A CN 102729159A
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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 sand belt, particularly a kind of thin film based electrostatic sand-planting sand belt and preparation method thereof.
Background technology
Bent axle is the main rotary gadget of engine, load onto connecting rod after, can reciprocating motion be become and rotatablely move.Bent axle is
Start MachineOn important parts, its material is processed by structural carbon steel or spheroidal graphite cast-iron.The trunnion of bent axle and connecting rod neck are its two significant points.Trunnion is installed on the cylinder body, and the connecting rod neck is connected with crank pin end pore, small end of connecting rod hole and cylinder
PistonConnect, be one typical
CrankSlide block mechanism.Bent axle lubricated mainly be meant and rocking arm between lubricated and two fixing point lubricated of bearing shell.The rotation of bent axle is the power source of engine.Also be whole
Mechanical systemDriving source.Flourish along with the domestic automobile industry also obtained huge development as the bent axle industry of the important accessory of automobile.Along with and what come is exactly that the demand of bent axle processing consumptive material industry increases day by day.The machine glazed finish processing of bent axle can be divided into corase grind and correct grinding two parts, and corase grind Do-All, milling machine, crankshaft grinding machine are processed, and correct grinding then cooperates belt sander to polish with the electrostatic sand-planting sand belt, uses fine granularity thin film based electrostatic sand-planting sand belt during correct grinding more.Metallic roll is the general designation of system roller industry to metal, alloy steel products class roller, mainly comprises mirror roller, metal anilox roll, corrugation roller etc.Wherein mirror roller is widely used in the surperficial press polish of various plastics such as leather, glass, people's leather, paper, ornament materials, non-ferrous metal, PVC, ABA, PP, PE, PT, PC and dress materials.Being characterized in that material all selects 45# seamless steel pipe or steel alloy for use, forming, and in the middle of the mirror roller runner or chuck are installed through heat treatment, machining, the cooling or the heating temperature difference be not more than ± and 1 ℃, case hardness HRC55-58.Chromium plating polishing back hardness HRC62.Thermal deformation is not more than 0.01mm.
Patent CN101607384A; Narrated a kind of preparation method of UEA116 super-precision grinding grinding belt; It is a matrix with biaxial tension poly terephthalic acid second two membrane of lipoprotein, and binding agent, crosslinking agent, solvent are made into mixed liquor A, B, and mixed liquor A is coated on the matrix with the pair roller cladding process; Implant resin bed to abrasive material with the electrostatic sand-planting law technology then; With the pair roller cladding process mixed liquid B is coated to dry good glue layer of sand surface at 75-85 ℃ again after predrying, then 75-85 ℃ of following precuring, crosslinked at normal temperatures at last.This sand belt cutting force is low, the chip removal poor performance, and drop easily, the life-span is short.
Summary of the invention
The present invention is directed to the defective or the deficiency that exist in the prior art, a kind of thin film based electrostatic sand-planting sand belt and preparation method thereof is provided.Thin film based electrostatic sand-planting sand belt of the present invention can have good chip removal ability, cutting force is big, difficult stops up, is difficult for advantages such as drop, life-span length, thereby polishing metal rod, bent axle etc. make it meet the requirements of surface roughness more efficiently.
Technical scheme of the present invention is following:
A kind of thin film based electrostatic sand-planting sand belt is characterized in that, comprises film substrate; Coat the coating layer on said film substrate surface; With the micron order abrasive material that is embedded in the said coating layer, said coating layer comprises primer layer and the multiple glue-line that stacks gradually, and said primer layer comprises primer layer filler and solvent-based adhesive; Said primer layer filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said primer layer filler are 5～30 μ m; Said multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and said multiple glue-line filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said multiple glue-line filler is 5～30 μ m.
Also be provided with ultra coating on the said multiple glue-line, said ultra coating comprises ultra coating filler and solvent-based adhesive, and said ultra coating filler comprises talcum powder, also comprises titanium white powder and/or zinc stearate.
The particle diameter of said ultra coating filler is 5～30 μ m.
The particle diameter of said micron order abrasive material is 5～150 μ m.
It is evenly distributed that said micron order abrasive material is the individual layer orientation along said coating layer plane, and the abrasive material tip up.
Said micron order abrasive material is implanted in the said primer layer through the electrostatic sand-planting technology.
Said micron order abrasive material is aluminium oxide or carborundum.
The thickness of said film substrate is at 25～200 μ m; Said film substrate is a polyester film.
A kind of preparation method of thin film based electrostatic sand-planting sand belt is characterized in that, may further comprise the steps:
(1) powdery, granular or block resin are dissolved in the solvent, process solid content and be 10～90% adhesive;
(2) primer layer filler and multiple glue-line filler are mixed with certain proportion with the adhesive that step (1) obtains respectively, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine to be uniformly dispersed, make slurry A, slurry B respectively; Said primer layer comprises primer layer filler and solvent-based adhesive, and said primer layer filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said filler are 5～30 μ m; Said multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and said multiple glue-line filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said filler are 5～30 μ m;
(3) will surpass the coating filler and mix with certain proportion, and add certain solvent, and use ball mill, sand mill or ultrasonic dispersing machine to be uniformly dispersed, make slurry C with the adhesive that step (1) obtains; Said ultra coating filler comprises talcum powder, also comprises titanium white powder and/or zinc stearate;
(4) the slurry A that step (2) is made coats the film substrate surface equably with roll coater or flush coater, forms primer layer;
(5) base material behind the gluing in the step (4) is evenly planted abrasive material on primer layer through the electrostatic sand-planting machine, under 80～130 ℃, pre-dried makes primer layer dry;
(6) the slurry B that step (2) is made coats the primer layer surface equably with roll coater or flush coater, forms multiple glue-line, and under 80～130 ℃, precuring is handled and made multiple glue-line dry;
(7) slurry C that step (3) is made is coated multiple glue-line surface equably with roll coater or flush coater, forms ultra coating, and under 80～130 ℃, precuring is handled and made ultra coating dry, makes the thin-film grinding band;
(8) the thin-film grinding band that step (7) is made solidifies certain hour at a certain temperature.
Said solvent is one or more mixtures of benzene,toluene,xylene, butanone, cyclohexanone, ethyl acetate, acetone; When planting sand, said electrostatic sand-planting machine plants the sand amount at 1～300g/m through control sandbox gap, sediment transport tape speed, the coating speed of a motor vehicle, polar plate spacing and the adjusting of electrostatic field voltage parameter
2
The main feature of thin film based electrostatic sand-planting sand belt of the present invention: the individual layer orientation is evenly distributed up to make the sharp micron order abrasive material tip of external form by technology; Increased that the chip removal ability is strong, good heat dissipation, not susceptible to plugging ultra coating; Adopt fillers such as micron order calcium carbonate, calcium oxide micro mist, improved greatly glue-line shear strength, be difficult for drop; Adopting the novel high polymer mylar is adhesive; Adopting flatness height, percentage elongation to hang down and reaching the high polyester film of intensity is base material; Adopt accurate processes means to make.This electrostatic sand-planting sand belt is used for the precise finiss in metallic roll, bent axle field, and can dry grind also can add the water wet-milling.This sand belt has strong, the rapid heat dissipation of chip removal ability, is difficult for stopping up, is difficult for advantages such as drop, life-span be long, and polishing metal rod, bent axle etc. meet the requirements of surface roughness more efficiently.
Description of drawings
Fig. 1 is the structural representation of thin film based electrostatic sand-planting sand belt of the present invention.
Fig. 2 is the surperficial SEM figure of thin film based electrostatic sand-planting sand belt of the present invention.SEM refers to ESEM.
Mark is listed as follows among the figure: the 1-film substrate; The 2-primer layer; The multiple glue-line of 3-; The ultra coating of 4-; The 5-abrasive material.
The specific embodiment
Technical conceive of the present invention is: through the structure matching and the filler selection of adhesive; By means of the high-voltage electrostatic field under the reasonable process parameter, specific abrasive material is planted in the solvent-based adhesive of high-strength thin-film substrate surface, after drying, be coated with again and attach the not susceptible to plugging ultra coating of one deck; Through the sand belt that forms behind the dry solidification during in metallic roll, bent axle polishing; Abrasive material sharp and have self-sharpening, micron order filler improve greatly glue-line shear strength, be difficult for drop, ultra coating chip removal ability has improved sand belt life-span and grinding efficiency by force, greatly; Grinding metallic roll fast, bent axle meet the demands its surface roughness.
Technical scheme of the present invention is: a kind of thin film based electrostatic sand-planting sand belt; It is characterized in that; Comprise the coating that evenly to coat substrate surface by the slurry that micron order filler and solvent-based adhesive, solvent dispersion are processed; Form primer, the micron order abrasive material of evenly implanting individual layer directional profile wherein by means of the high-voltage electrostatic field is arranged in the said primer, form the glue layer of sand; There is one deck to disperse the even coating of processing that is coated with of slurry by micron order filler and solvent-based adhesive, solvent above the said glue layer of sand; Form multiple glue, also have the ultra coating of one deck above the said multiple glue, said ultra coating is that the chip removal ability is strong, good heat dissipation, not susceptible to plugging ultra coating filler and solvent-based adhesive, solvent are disperseed the even coating that is coated with of slurry processed; The film substrate that said base material is high strength, low elongation, surface smoothness is good, the particle diameter of said abrasive material is 5～150 μ m.
Fig. 1 is the structural representation of thin film based electrostatic sand-planting sand belt of the present invention.As shown in Figure 1, thin film based electrostatic sand-planting sand belt comprises film substrate 1, is followed successively by primer layer 2, multiple glue-line 3 and ultra coating 4 on it, and abrasive material embeds wherein.Fig. 2 is the surperficial SEM figure of thin film based electrostatic sand-planting sand belt of the present invention.SEM refers to ESEM.As shown in Figure 2, the abrasive material tip up.
The manufacturing approach of sand belt provided by the invention may further comprise the steps: (1) is dissolved in powdery, granular or block resin in the solvent, processes the adhesive that solid content is 10-90%; (2) filler is mixed with certain proportion with the adhesive that step (1) obtains, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine fully to be uniformly dispersed, make slurry A, B respectively.(3) will surpass the coating filler and mix with certain proportion, and add certain solvent, and use ball mill, sand mill or ultrasonic dispersing machine fully to be uniformly dispersed, make slurry C respectively with the adhesive that step (1) obtains.(4) the slurry A that step (2) is made coats the film substrate surface equably with roll coater or flush coater.(5) base material behind the gluing in the step (4) is evenly planted abrasive material on glue-line through the high-voltage electrostatic field, under 80-130 ℃, pre-dried makes glue-line dry.(6) slurry that step (2) is made is coated the thin film based sand belt surface that step (4) makes equably with roll coater or flush coater, and under 80-130 ℃, precuring is handled and made glue-line dry.(7) slurry that step (3) is made is coated the thin film based sand belt surface that step (6) makes equably with roll coater or flush coater, and under 80-130 ℃, precuring is handled and made glue-line dry.(8) solidified 72 hours down at 110 ℃.
Method of the present invention is regulated coating layer thickness at the 1-30 micron through conditions such as control roll speed, linear speed, roller gaps during coating.Method of the present invention is planted the sand amount at 1～300g/m through condition adjustings such as control sandbox gap, sediment transport tape speed, the coating speed of a motor vehicle, polar plate spacing, electrostatic field voltages when planting sand
2Described resin comprises one or more mixtures in epoxy resin, phenolic resins, modified starch, polyurethane, polyacrylamide, the polyester.Described filler is mainly calcium oxide, calcium carbonate, talcous one or more mixtures, and particle diameter is 5～30 μ m.Described ultra coating filler is mainly one or more mixtures of talcum powder, titanium white powder, zinc stearate, and particle diameter is 5～30 μ m.Described abrasive material is mainly aluminium oxide, carborundum, and particle diameter is 5～150 μ m.The mixed proportion of described abrasive material and adhesive is 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 draw tensile strength and solvent resistance, hear resistance, comprises various plastic sheetings, and like polyurethane, Merlon, polyamide, polypropylene, polyester, polyethylene, polyvinyl chloride, thickness is at 25-200 μ m.From mechanical strength and coating uniformity, biaxially oriented polyester film or polyamide film are the most suitable.In addition, can carry out surface treatment to film as required, comprise corona treatment, surface grafting polymerization thing or precoated shet processing etc.Also need add some additives in the described slurry: coupling agent, antistatic additive, wetting agent, dispersant add suitable amount as required.The used dispersing apparatus of method of the present invention comprises ball mill, sand mill or ultrasonic dispersing machine, should control jitter time, and slurry is evenly disperseed, and does not produce reunion.Described curing refers to: product 40～150 ℃ of held 5～100 hours, is regulated suitable temperature and time so that curing reaction carries out fully after the dry road of coating machine drying.According to instructions for use, sand belt can be cut into the shape such as square sheet, disk, winding of various sizes.
Instance 1:
It is 5 microns calcium carbonate fine powder that step 1 is got the 800g median particle diameter, and the 200g median particle diameter is 10 microns a calcium oxide micro mist, and the 3000g solid content is 30% polyester glue; The 1500g solid content is 20% phenol glue, 2400g ethyl acetate, 900g butanone; 450g xylenes, above-mentioned mixed liquor changes in the ball mill dispersion tank, utilizes ball mill that it was fully disperseed 48 hours; Add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilize roll coater above-mentioned painting slurry to be coated with uniformly that to invest thickness be that the sand amount is adjusted into 150g/m under the sandbox then on 125 microns the film tape base with the speed of 15m/min
2, polar plate spacing is 50mm; Electrostatic field voltage is that 60,000 volts, sediment transport tape speed are set at 8m/min; Base material is through sand-planting machine behind the gluing, is that 60 microns alumina abrasive grain is planted on the base material glue-line through the high-voltage electrostatic field with median particle diameter, through rolling after 120 ℃ of heated-air dryings.
It is 10 microns calcium carbonate fine powder that step 2 is got the 1000g median particle diameter, and the 1500g solid content is 30% polyester glue, and the 3000g solid content is 20% phenol glue; 2400g ethyl acetate, 900g butanone, 450g xylenes; Above-mentioned mixed liquor changes in the ball mill dispersion tank; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilizing roll coater that above-mentioned painting slurry is coated with uniformly invests on the abrasive band of planting in the step 1 behind the sand, through rolling after 120 ℃ of heated-air dryings.
It is 10 microns talcum powder micro mist that step 3 is got the 600g median particle diameter, and the 400g median particle diameter is 10 microns a zinc stearate micro mist, and the 2000g solid content is 30% polyester glue; The 1000g solid content is 20% phenol glue, 2400g ethyl acetate, 900g butanone; 450g xylenes; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilize roll coater above-mentioned painting slurry to be coated with uniformly on the abrasive band that invests the step 2 gained, through rolling after 120 ℃ of heated-air dryings.Solidified 72 hours down at 110 ℃, promptly process thin film based electrostatic sand-planting sand belt of the present invention.
Instance 2:
It is 5 microns calcium carbonate fine powder that step 1 is got the 600g median particle diameter, and the 400g median particle diameter is 10 microns a calcium oxide micro mist, and the 2000g solid content is 30% polyester glue; The 2000g solid content is 20% phenol glue, 2400g ethyl acetate, 900g butanone; 450g xylenes, above-mentioned mixed liquor changes in the ball mill dispersion tank, utilizes ball mill that it was fully disperseed 48 hours; Add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilizing roll coater with the speed of 15m/min above-mentioned painting slurry to be coated on thickness uniformly is that base material is through sand-planting machine behind the gluing then on 125 microns the film tape base, and the sand amount is adjusted into 120g/m under the sandbox then
2, polar plate spacing is 50mm, electrostatic field voltage is that 60,000 volts, sediment transport tape speed are set at 8m/min, is that 30 microns alumina abrasive grain is planted on the base material glue-line through the high-voltage electrostatic field with median particle diameter, through rolling after 120 ℃ of heated-air dryings.
It is 10 microns calcium carbonate fine powder that step 2 is got the 1000g median particle diameter, and the 1000g solid content is 30% polyester glue, and the 3500g solid content is 20% phenol glue; 2400g ethyl acetate, 900g butanone, 450g xylenes; Above-mentioned mixed liquor changes in the ball mill dispersion tank; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilizing roll coater that above-mentioned painting slurry is coated with uniformly invests on the abrasive band of planting in the step 1 behind the sand, through rolling after 120 ℃ of heated-air dryings.
It is 10 microns talcum powder micro mist that step 3 is got the 600g median particle diameter, and the 400g median particle diameter is 10 microns a zinc stearate micro mist, and the 2000g solid content is 30% polyester glue; The 1000g solid content is 20% phenol glue, 2400g ethyl acetate, 900g butanone; 450g xylenes; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilize roll coater above-mentioned painting slurry to be coated with uniformly on the abrasive band that invests the step 2 gained, through rolling after 120 ℃ of heated-air dryings.Solidified 72 hours down at 110 ℃, promptly process thin film based electrostatic sand-planting sand belt of the present invention.
It is 5 microns calcium carbonate fine powder that step 1 is got the 1500g median particle diameter, and the 3000g solid content is 30% polyester glue, and the 1500g solid content is 20% phenol glue; 2400g ethyl acetate, 900g butanone, 450g xylenes; Above-mentioned mixed liquor changes in the ball mill dispersion tank; Utilize ball mill that it was fully disperseed 48 hours, add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilize roll coater above-mentioned painting slurry to be coated with uniformly that to invest thickness be that the sand amount is adjusted into 100g/m under the sandbox then on 125 microns the film tape base with the speed of 15m/min
2, polar plate spacing is 50mm; Electrostatic field voltage is that 50,000 volts, sediment transport tape speed are set at 8m/min; Base material is that 15 microns alumina abrasive is planted on the base material glue-line through the high-voltage electrostatic field with median particle diameter, through rolling after 120 ℃ of heated-air dryings through sand-planting machine behind the gluing then.
It is 5 microns calcium carbonate fine powder that step 2 is got the 1500g median particle diameter, and the 1500g solid content is 30% polyester glue, and the 3000g solid content is 20% phenol glue; 2400g ethyl acetate, 900g butanone, 450g xylenes; Above-mentioned mixed liquor changes in the ball mill dispersion tank; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilizing roll coater that above-mentioned painting slurry is coated with uniformly invests on the abrasive band of planting in the step 1 behind the sand, through rolling after 120 ℃ of heated-air dryings.
It is 10 microns talcum powder micro mist that step 3 is got the 600g median particle diameter, and the 400g median particle diameter is 10 microns a zinc stearate micro mist, and the 2000g solid content is 30% polyester glue; The 1000g solid content is 20% phenol glue, 2400g ethyl acetate, 900g butanone; 450g xylenes; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilize roll coater above-mentioned painting slurry to be coated with uniformly on the abrasive band that invests the step 2 gained, through rolling after 120 ℃ of heated-air dryings.Solidified 72 hours down at 110 ℃, promptly process thin film based electrostatic sand-planting sand belt of the present invention.
Instance 4:
It is 5 microns calcium carbonate fine powder that step 1 is got the 1500g median particle diameter, and the 3500g solid content is 30% polyester glue, and the 1000g solid content is 20% phenol glue; 2400g ethyl acetate, 900g butanone, 450g xylenes; Above-mentioned mixed liquor changes in the ball mill dispersion tank; Utilize ball mill that it was fully disperseed 48 hours, add 5000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilize roll coater above-mentioned painting slurry to be coated with uniformly that to invest thickness be that the sand amount is adjusted into 100g/m under the sandbox then on 125 microns the film tape base with the speed of 15m/min
2, polar plate spacing is 50mm; Electrostatic field voltage is that 50,000 volts, sediment transport tape speed are set at 8m/min; Base material is that 9 microns abrasive particle abrasive particle is planted on the base material glue-line through the high-voltage electrostatic field with median particle diameter, through rolling after 120 ℃ of heated-air dryings through sand-planting machine behind the gluing then.
It is 5 microns calcium carbonate fine powder that step 2 is got the 1000g median particle diameter, and the 1500g solid content is 30% polyester glue, and the 3000g solid content is 20% phenol glue; 2400g ethyl acetate, 900g butanone, 450g xylenes; Above-mentioned mixed liquor changes in the ball mill dispersion tank; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilizing roll coater that above-mentioned painting slurry is coated with uniformly invests on the abrasive band of planting in the step 1 behind the sand, through rolling after 120 ℃ of heated-air dryings.
It is 10 microns talcum powder micro mist that step 3 is got the 600g median particle diameter, and the 400g median particle diameter is 10 microns a zinc stearate micro mist, and the 2000g solid content is 30% polyester glue; The 1000g solid content is 20% phenol glue, 2400g ethyl acetate, 900g butanone; 450g xylenes; Utilize ball mill that it was fully disperseed 48 hours, add 6000g polyisocyanate curing agent (the new photochemical factory in Shanghai) then, the formation painting slurry stirs.Utilize roll coater above-mentioned painting slurry to be coated with uniformly on the abrasive band that invests the step 2 gained, through rolling after 120 ℃ of heated-air dryings.Solidified 72 hours down at 110 ℃, promptly process thin film based electrostatic sand-planting sand belt of the present invention.
Instance 5:
This instance is an application examples.The sand belt that makes among the above-mentioned instance 1-4 is cut into the winding of 101.6mmX45m, and the polishing machine that utilizes Shantou gold really to make carries out the mirror roller polishing experiments under the condition shown in the subordinate list 1.Experiment finishes test minute surface roll surface roughness Ra, and < 0.012 μ m is that fineness reaches 14 grades, meets mirror roller polishing requirement.Subordinate list 1 is following:
Should be pointed out that the above embodiment can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.Therefore, although this specification has carried out detailed explanation to the present invention,, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of spirit of the present invention, and it all should be encompassed in the middle of the protection domain of patent of the present invention.
Claims (10)
1. thin film based electrostatic sand-planting sand belt; It is characterized in that; Comprise film substrate, coat the coating layer on said film substrate surface and be embedded in the micron order abrasive material in the said coating layer; Said coating layer comprises primer layer and the multiple glue-line that stacks gradually; Said primer layer comprises primer layer filler and solvent-based adhesive, and said primer layer filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said primer layer filler are 5～30 μ m; Said multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and said multiple glue-line filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said multiple glue-line filler is 5～30 μ m.
2. thin film based electrostatic sand-planting sand belt according to claim 1; It is characterized in that also be provided with ultra coating on the said multiple glue-line, said ultra coating comprises ultra coating filler and solvent-based adhesive; Said ultra coating filler comprises talcum powder, also comprises titanium white powder and/or zinc stearate.
3. thin film based electrostatic sand-planting sand belt according to claim 2 is characterized in that, the particle diameter of said ultra coating filler is 5～30 μ m.
4. thin film based electrostatic sand-planting sand belt according to claim 1 is characterized in that, the particle diameter of said micron order abrasive material is 5～150 μ m.
5. thin film based electrostatic sand-planting sand belt according to claim 1 is characterized in that, it is evenly distributed that said micron order abrasive material is the individual layer orientation along said coating layer plane, and the abrasive material tip up.
6. thin film based electrostatic sand-planting sand belt according to claim 1 is characterized in that, said micron order abrasive material is implanted in the said primer layer through the electrostatic sand-planting technology.
7. thin film based electrostatic sand-planting sand belt according to claim 1 is characterized in that said micron order abrasive material is aluminium oxide or carborundum.
8. thin film based electrostatic sand-planting sand belt according to claim 1 is characterized in that the thickness of said film substrate is at 25～200 μ m; Said film substrate is a polyester film.
9. the preparation method of a thin film based electrostatic sand-planting sand belt is characterized in that, may further comprise the steps:
(1) powdery, granular or block resin are dissolved in the solvent, process solid content and be 10～90% adhesive;
(2) primer layer filler and multiple glue-line filler are mixed with certain proportion with the adhesive that step (1) obtains respectively, and add certain solvent, use ball mill, sand mill or ultrasonic dispersing machine to be uniformly dispersed, make slurry A, slurry B respectively; Said primer layer filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said primer layer filler are 5～30 μ m; Said multiple glue-line comprises multiple glue-line filler and solvent-based adhesive, and said multiple glue-line filler is selected from a kind of of following material or surpasses a kind of mixture: calcium oxide, calcium carbonate, talcum powder, the particle diameter of said multiple glue-line filler is 5～30 μ m.
(3) will surpass the coating filler and mix with certain proportion, and add certain solvent, and use ball mill, sand mill or ultrasonic dispersing machine to be uniformly dispersed, make slurry C with the adhesive that step (1) obtains; Said ultra coating filler comprises talcum powder, also comprises titanium white powder and/or zinc stearate;
(4) the slurry A that step (2) is made coats the film substrate surface equably with roll coater or flush coater, forms primer layer;
(5) base material behind the gluing in the step (4) is evenly planted abrasive material on primer layer through the electrostatic sand-planting machine, under 80～130 ℃, pre-dried makes primer layer dry;
(6) the slurry B that step (2) is made coats the primer layer surface equably with roll coater or flush coater, forms multiple glue-line, and under 80～130 ℃, precuring is handled and made multiple glue-line dry;
(7) slurry C that step (3) is made is coated multiple glue-line surface equably with roll coater or flush coater, forms ultra coating, and under 80～130 ℃, precuring is handled and made ultra coating dry, makes the thin-film grinding band;
(8) the thin-film grinding band that step (7) is made solidifies certain hour at a certain temperature.
10. the preparation method of thin film based electrostatic sand-planting sand belt according to claim 9 is characterized in that, said solvent is one or more mixtures of benzene,toluene,xylene, butanone, cyclohexanone, ethyl acetate, acetone; When planting sand, said electrostatic sand-planting machine plants the sand amount at 1～300g/m2 through control sandbox gap, sediment transport tape speed, the coating speed of a motor vehicle, polar plate spacing and the adjusting of electrostatic field voltage parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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 |
| CN104511846A (en) * | 2013-11-19 | 2015-04-15 | 东莞金太阳研磨股份有限公司 | Film sandpaper production method |
| CN109866115A (en) * | 2018-12-28 | 2019-06-11 | 绍兴自远磨具有限公司 | A method of diamond lap material is prepared using electrostatic sand-planting technique |
| CN113927494A (en) * | 2021-10-29 | 2022-01-14 | 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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| CN109866115A (en) * | 2018-12-28 | 2019-06-11 | 绍兴自远磨具有限公司 | A method of diamond lap material is prepared using electrostatic sand-planting technique |
| CN113927494A (en) * | 2021-10-29 | 2022-01-14 | 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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