WO2012082396A1 - Article de polissage fibreux autonome - Google Patents
Article de polissage fibreux autonome Download PDFInfo
- Publication number
- WO2012082396A1 WO2012082396A1 PCT/US2011/063008 US2011063008W WO2012082396A1 WO 2012082396 A1 WO2012082396 A1 WO 2012082396A1 US 2011063008 W US2011063008 W US 2011063008W WO 2012082396 A1 WO2012082396 A1 WO 2012082396A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- self
- buffing
- fibrous buffing
- contained fibrous
- buffing article
- Prior art date
Links
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- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 7
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/12—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
- B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
- B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials
- B24D3/004—Flexible supporting members, e.g. paper, woven, plastic materials with special coatings
Definitions
- Buffing wheels or buffs are generally formed from layers of a fibrous material which are stacked or fastened together. Fastening methods include, for example, compression, sewing, stapling, adhesive bonding, plastic or metal clinch rings, and combinations thereof.
- the buffing wheel is typically attached to a shaft and supported for rotation. Buffs have long been used to finish items such as machined parts, stamped parts, and cast articles which often have surfaces which must be modified, generally for aesthetic purposes. Buffing is a finishing process which is typically accomplished after more rigorous stock removal treatment of the surface.
- Buffs are frequently categorized as either "cut” buffs or "color” buffs.
- a cut buff is more aggressive and is typically employed with a coarser buffing compound, a medium to high pressure between the buff and the workpiece, and the workpiece is advanced against the direction of rotation of the buff. This results in the refinement of scratches on the workpiece and yields a uniform matte finish.
- a color buff is typically employed with a finer buffing compound, a medium to low pressure between the buff and the workpiece, and the workpiece is advanced in the direction of rotation of the buff. The color buff application results in a further refinement of scratches in the surface of the workpiece and yields a reflective, mirror-like finish.
- Buffs are most often employed to refine surfaces by a three-body abrasion mechanism. Driven buffs transmit energy to a workpiece, but the abrading action is provided by an abrasive composition 'buffing compound" that is peripherally applied, but not bound, to the buffs surface. Unbonded buffing compounds situated between the workpiece and the buffs surface refines the workpiece surface resulting in fewer and smaller scratches being imparted to the workpiece surface as the buffing continues. While such three-body systems produce the required finishes, the buffing compound must be frequently applied to achieve a consistent finish, can be undesirably transferred onto adjacent surfaces, and leaves a residue on the workpiece surface which then must be removed.
- the present invention relates to self-contained fibrous buffing articles that are functional without the application of external buffing compounds to the periphery or surfaces of the buffing wheel.
- the invention resides in a self- contained fibrous buffing article including at least one layer of a spunlaced nonwoven fabric having a hardened adherent coating comprising a thermosetting binder, abrasive particles, and a lubricant.
- the self-contained buff of the present invention is capable of imparting bright finishes onto metal surfaces, has a long service life, and is resistant to fraying, dusting, smearing, and unraveling.
- FIG.l illustrates one embodiment of a self-contained fibrous buffing article
- FIG. 2 illustrates a second embodiment of a self-contained fibrous buffing article
- FIG. 3 illustrates a third embodiment of a self-contained fibrous buffing article
- FIG. 4 illustrates a fourth embodiment of a self-contained fibrous buffing article
- FIG. 5 illustrates a fifth embodiment of a self-contained fibrous buffing article.
- self-contained fibrous buffing article means a buffing article containing a pre-applied or pre-impregnated abrasive buffing composition to the fibrous material forming the buffing article.
- the abrasive buffing composition is suitable for cut or color buffing, and is applied to the buffing article by the manufacturer during the initial manufacturing of the buffing article. As such, the application of a buffing compound to the buffing article by an operator before first using or while using the buffing article to buff a work surface is not required.
- hardening when used to describe the solidification of a precursor, refers to curing (e.g., polymerization and/or cross-linking, thermally or otherwise), drying (e.g., driving off a volatile solvent) and/or simply by cooling.
- the self-contained fibrous buffing article of the present invention comprises at least one layer of a spunlaced fabric impregnated with an adherent slurry comprising a thermosetting binder precursor, abrasive particles, and a lubricant.
- Fibrous buffing material useful in the practice of this invention may be made by any known web formation system.
- the fibrous buffing material may be spunbonded, hydroentangled, or melt blown.
- the fibrous buffing material is a dry laid nonwoven fabric.
- the fibrous buffing material is an air-laid nonwoven fabric.
- the fibrous buffing material is formed by carding and cross-lapping. While web formation methods using staple fibers are typical, continuous filament systems such as spunbond or meltblown may be used. Useful staple fibers lengths include those between 0.75 inch (19 mm) and 4 inches (102 mm), inclusive.
- a prebond coating may be applied to enhance the integrity of the nonwoven fabric.
- the fiber component of the fibrous buffing material may be synthetic, man-made, or natural in origin.
- exemplary synthetic fibers are polyester (such as poly(ethylene terephthalate) or poly(butylene terephthalate)), polyamide (such as poly(hexamethylene adipate) or polycaprolactam), and polyolefins (such as polyethylene or polypropylene).
- Exemplary man-made fibers include cellulose acetate, rayon, and lyocell.
- natural fibers such as cotton, jute, ramie, flax, and wool are useful alone or in combination.
- blends of two, three, or even more fiber constituents may be used.
- fiber denier may be greater than 0.1 denier (0.11 dtex). In some embodiments, fiber size may be less than 20 denier (22.5 dtex). In some
- mixtures of two or more fiber deniers may be useful.
- the fibrous buffing material of the self-contained fibrous buffing article is a spunlaced fabric. Spunlaced fabrics are produced by a
- Fibers useful for preparing the spunlaced fabric backing are typically staple fibers, but webs of continuous filaments may also be used.
- Useful staple fibers are typically synthetic or man-made, but natural fibers such as cotton or jute may be useful.
- Useful synthetic or man-made fiber materials comprise polyamide, polyester, polyolefm, polyacrylic, polyimide, lyocell, and rayon. Blends of two or more fiber materials are also useful. For example, 75% nylon and 25% cotton or 50%> polyester and 50%> rayon blends are useful. While fabric weights are not limiting, a range of from 30 to 130 grams per square meter is typical. Suitable spunlaced fabrics are available, for example, as
- suitable spunlaced fabrics exhibit tensile strengths 500 N/50 mm or less in the machine direction, 400 N/50 mm or less in the machine direction, or 300 N/50 mm or less in the machine direction; and 300 N/50 mm or less in the cross machine direction , 200 N/50 mm or less in the cross machine direction, or 150 N/50 mm or less in the cross direction.
- suitable spunlaced fabrics exhibit tensile strengths of at least 50 N/50 mm in the machine direction, or at least 100 N/50 mm in the machine direction; and at least 30 N/ 50 mm in the cross machine direction or at least 50 N/ 50 mm in the cross machine direction.
- the tensile strength numbers are for a 50 mm wide test strip.
- tensile ranges for the machine direction and cross machine direction using any of the above upper and lower limits are suitable.
- the adherent slurry comprises an aqueous dispersion of abrasive particles, a lubricant, and a thermosetting binder precursor.
- Useful adherent slurries are formulated to maximize the desired abrasive effects (cut or color buffing), maximize the buffs flexibility, and minimize both smearing (unwanted transfer of buffing components onto the workpiece) and dusting during use.
- Useful ranges of the hardened adherent coating are 11-40 wt.% thermosetting binder, 20-50 wt% mineral, and 20-45 wt% lubricant.
- thermosetting resins and their precursors include epoxy resins, phenolic resins, urea-aldehyde resins, aminoplast resins having pendant unsaturated carbonyl groups, and the like, (including those having at least 1.1 pendant alpha, beta unsaturated carbonyl group per molecule or oligomer as described in U.S. Pat. No. 4,903,440), acrylated resins such as isocyanurate resins having at least one pendant acrylate group (such as the triacrylate of tris(hydroxyethyl) isocyanurate), acrylated urethane resins, acrylated epoxy resins, and isocyanate derivatives having at least one pendant acrylate group. It is understood that mixtures of the above resins could also be employed.
- acrylated is meant to include monoacrylated, monomethacrylated, multi-acrylated, and multimethacrylated monomers, oligomers and polymers.
- Preferred epoxy resins are aqueous emulsions and organic solvent dispersions.
- Suitable aqueous epoxy emulsions for use in the adherent slurry include 2,2-bis[4(2,3- epoxypropoxy)phenyl] propane (diglycidyl ether of bisphenol A) and commercially available materials under the trade designation "Epon 828", “Epon 1004" and “Epon 1001F” available from Shell Chemical Co., and "DER-331", "DER-332” and "DER-334" available from the Dow Chemical Co.
- epoxy resins include glycidyl ethers of phenol formaldehyde novolak resins (e.g., "DEN-431” and “DEN438” available from the Dow Chemical Co.), and resorcinol diglycidyl ether.
- Organic solvent dispersions of epoxy resins useful in the adherent slurry may also comprise diglycidyl ethers of bisphenol A epoxy resin and an organic solvent such as that known under the trade designation "Aromatic 100", commercially available from Worum Chemical Co., St. Paul, Minn., which includes a mixture of aromatic hydrocarbons.
- Epoxy equivalent weights for resins meeting this description typically and preferably have an epoxy equivalent weight ranging from about 100 to about 500.
- One particularly preferred epoxy resin, which may be combined with an organic solvent to form a coatable adherent slurry, is that known under the trade designation "EPON 828" previously mentioned having an epoxy equivalent weight ranging from about 185 to about 195.
- epoxy resins of the type useful in the adherent slurry require curing
- Useful curing agents are typically and preferably selected from amides and imidazoles.
- One useful amide is the polyamide known under the trade designation "VERS AMID 125”, commercially available from Henkel Corporation.
- a useful imidazole is that known under the trade designation "EMI-24”, commercially available from Air Products, Allentown, Pa., which is a 100 percent solids version of 2- ethyl-4-methyl imidazole.
- This imidazole is typically and preferably diluted with water when used with aqueous epoxy resins.
- a preferred imidazole has from about 10 to 40 percent solids, more preferably about 25 percent solids. When used with organic solvent dispersions of epoxy resins, the imidazole is typically and preferably used as 100 percent solids.
- Phenolic resins and urea-aldehyde resins useful in the adherent slurry as thermosetting resins include those disclosed U.S. Pat. No. 5,178,646 in columns 15-17. These resins comprise the reaction product of an aldehyde and a non-aldehyde. Phenolic resins are preferred because of their thermal properties, availability, low cost, and ease of handling.
- the general term "phenolic" includes phenol-formaldehyde resins as well as resins comprising other phenol-derived compounds and aldehydes.
- the phenolic and urea-aldehyde resins preferably are 30-95% solids, more preferably 60-80% solids, with a viscosity (Brookfield viscometer, number 2 spindle, 60 rpm, 25° C) ranging from about 750 to about 1500 cps before addition of any diluent, and have molecular weight (number average) of at least about 200, preferably varying from about 200 to 700.
- Resole phenolic resins can be catalyzed by alkaline catalysts, and the molar ratio of formaldehyde to phenol is greater than or equal to one, typically between 1.0 to 3.0, thus presenting pendant methylol groups.
- Alkaline catalysts suitable for catalyzing the reaction between aldehyde and phenolic components of resole phenolic resins include sodium hydroxide, barium hydroxide, potassium hydroxide, calcium hydroxide, organic amines, and sodium carbonate, all as solutions of the catalyst dissolved in water.
- the unhardened resole phenolic resin may be combined with a reactive diluent having the properties and structure described therein.
- Aldehydes which are useful as components of thermosetting resins include cyclic, straight and branched chain alkyl aldehydes, which can be saturated or unsaturated, and aromatic aldehydes.
- the aldehydes Preferably, the aldehydes have molecular weight below about 300 to afford a less viscous binder precursor solution.
- suitable aldehydes include formaldehyde, benzaldehyde, propanol, hexanal, cyclohexane carboxaldehyde, acetaldehyde, butyraldehyde, valeraldehyde, and other low molecular weight aldehydes.
- formaldehyde for its availability, low cost, hardened resin properties, and because it affords low viscosity grinding aid precursor compositions.
- phenolic resins useful in the adherent slurry include those known by the trade names "Varcum” (from Durez Division of Occidental Chemical Corp.), "Aerofene” (from Ashland Chemical Co.), “Bakelite” (from Union Carbide), Resafen (from Reichhold do Brasil SA) and Prefere (From Dynea Brasil SCP).
- Varcum from Durez Division of Occidental Chemical Corp.
- Ashland Chemical Co. from Ashland Chemical Co.
- Bakelite from Union Carbide
- Resafen from Reichhold do Brasil SA
- Prefere from Dynea Brasil SCP
- a standard, 70% solids (1.96: 1.0 molar ratio of formaldehyde to phenol) phenolic resin having 2 weight percent KOH per weight of phenol is available from Neste Resins Canada, Mississauga, Ontario, Canada.
- binder compositions including polyacrylonitrile, styrene-acrylonitrile copolymers, styrene-butadiene copolymers, and combinations of these may also be used.
- binders results in less efficacious buffing articles than the above disclosed thermosetting binders.
- lubricants for use in the self-contained fibrous buffing article include fatty acids (e.g., stearic acid), metallic salts of fatty acids (e.g., lithium stearate, zinc stearate), solid lubricants (e.g., poly(tetrafluoroethylene) (PTFE), graphite, and molybdenum disulfide), mineral oils and waxes (including micronized waxes), carboxylic acid esters (e.g., butyl stearate), poly(dimethylsiloxane) fluids, gum, and combinations thereof.
- fatty acids e.g., stearic acid
- metallic salts of fatty acids e.g., lithium stearate, zinc stearate
- solid lubricants e.g., poly(tetrafluoroethylene) (PTFE), graphite, and molybdenum disulfide
- mineral oils and waxes including micronized waxes
- Useful lubricants include, for example, "ZINCUM SW”, “ZINCUM AV”, “CEASIT SW” and “CEASIT AV” (from Baerlocher Do Brasil S.A, Americana, SP, Brazil), “COMAX A”, “COMAX T”, “QUIMIPEL COAT 9327” and “QUIMIPEL COAT 9330” (from Quimipel Industria Quimica LTD A, Piracaia, SP, Brazil), “Natural Graphite” (from Nacional de Grafite LTD A, Itapecerica, MG, Brazil), “Mineral Oil USP Grade Agecom and Drakeol” (from Agecom Produtos de Petroleo, Maua, SP, Brazil).
- Suitable abrasive particles are those useful for buffing operations.
- the abrasive particles may be of any suitable composition, but those comprising chromium oxide, aluminum oxide, calcined micronized aluminum oxide, iron oxide, titanium oxide, or silicon carbide are typical.
- Appropriate abrasive particle size distributions include those with median particle diameters of no greater than 50 micrometers, no greater than 30 micrometers, or no greater than 15 micrometers.
- additives that may be beneficial in the adherent slurry are surfactants, wetting agents, antifoaming agents, colorants and coupling agents.
- An anionic surfactant is beneficial to incorporate the lubricant into the adherent slurry.
- An example of an effective anionic surfactant is sodium dioctyl sulfosuccinate, available as "Aerosol OT-75" from Cytec Do Brasil Ltda., Sao Paulo, SP, Brazil.
- a wetting agent is useful to promote impregnation of the spunlaced fibrous buffing material with the adherent slurry.
- Useful wetting agents include surfactants that are at least partially non-ionic, such as "NopcoWet BR", available from Gap Quimica Ltda., Guarulhos, SP, Brazil.
- a coupling agent is useful to improve adhesion between the fibrous buffing material, the binder, and the abrasive mineral.
- Useful coupling agents include "Z-6020 Silane” and "Z-6040 Silane", both available from Dow Corning.
- Colorants or pigments such as iron oxide, titanium oxide, or carbon black may be added to visually identify different buffing articles and/or type of buffing article.
- pigments such as chromium oxide may also serve as an abrasive particle.
- the self-contained fibrous buffing articles are made by impregnating a length of suitable fibrous material with the adherent slurry comprising abrasive particles, thermosetting binder, a lubricant, and optionally a wetting agent and/or a surfactant, followed by a thermal treatment step forming a hardened adherent coating on the fibers and surfaces of the fibrous material.
- the adherent slurry may be incorporated into the fibrous material in one or more steps with either one or more hardening (thermal or otherwise) steps.
- an adherent slurry is incorporated and hardened, followed a subsequent coating comprising additional lubricant, followed by an additional hardening step.
- Adherent slurries and additional coatings may be applied by conventional application means, such as roll coating, curtain coating, die coating, or spraying.
- the total dry add-on weight of the coating(s) is from 25 gsm to 500 gsm, or from 50 gsm to 300 gsm, or from 100 gsm to 200 gsm.
- FIG. 1 shows a buff 10 composed of layers 11 of fibrous buffing material, optionally sewn with one or more circles of stitching 12 with suitable thread which is known for this purpose between the outer edge 13 and central opening 14 for attachment to a rotating spindle or mandrel.
- Layers of fibrous buffing material have a generally circular shape and they are stacked (or the entire assembly is cut) so that the edges of each of the layers define a cylindrical surface which is the peripheral edge of the buff.
- FIG. 2 shows a buff 20 composed of layers 21 of fibrous buffing material sewn together with several circular patterns 22 of stitching with suitable thread.
- the sewing pattern may be concentric (as shown), spiral, square, radial, radial arc, or combinations thereof.
- Buff 20 has a central opening 24 for attachment to a rotating spindle or mandrel.
- FIG. 3 depicts what is known as a "puckered” buff 30 which is produced by cutting a continuous strip of fibrous buffing material and convolutely wrapping this strip around the separated ends of axially aligned cylindrical mandrels, radially constricting the wrapped strip at its middle to form a flattened "puckered” annulus, and installing a rigid clinch ring 33 of either plastic or metal within the opening of the annulus.
- a "puckered” fibrous buffing material annulus may also be fastened by stapling, sewing or adhesive bonding to a suitable rigid annulus such as an annulus formed of cardboard.
- a sewn buff The particular construction of a sewn buff will depend upon its ultimate use. Buffs formed of layers of fabric, which are sewn together, as shown in FIG. 2 are typically used for cut buffing. Very close rows of stitching increase the stiffness of the sewn buff to increase cut.
- the sewing patterns for such buffs may vary, depending upon the needs of the user, from concentric sewn, radial sewn, square sewn, spiral sewn, to radial arc sewn and radial arc with spiral center. Concentric sewing results in non-uniform density when the buff wears as it is used. As the buff wears closer to the stitches, the buff will become harder and just past a row of stitches it becomes softer. Spiral sewing results in a more uniform density, although the buff surface will still have a density variation. Square and non-concentric sewing patterns produce pockets that may aid in buffing.
- the puckered or pleated buff is popular for its cool running capability, provided by pleats or puckers in its fabric.
- the type of the construction of a puckered buff depends upon its ultimate use also. Different hardnesses may be required for various cutting and/or color buffing applications. Hardness may be controlled somewhat by the spacing of buffs on the mandrel, but more commonly is regulated by the degree of puckering, the diameter of the buff relative to the clinch ring diameter, or the stiffness of the buff fabric.
- fibrous buffing articles may also find utility, including "flap wheel” constructions 40 as illustrated in FIG. 4 having individual buffing flaps 41 or "flap belt” constructions 50 as illustrated in FIG. 5 having individual buffing flaps 51.
- Phenolic resin Phenolic Resin known as "RESAFEN 13-376"
- PEG 400 Polyoxyethylene Glycol, available as "ATPEG 400", from Oxiteno S/A Industria E Comercio, Sao Paulo, S.P., Brazil
- Emulan A Oleic Acid based surfactant available as "EMULAN
- Stearic Acid emulsion 40% weight Stearic Acid Emulsion, available as
- Q2 Silicone based superwetting agent available as "Q2 - 5211", from Dow Corning Do Brasil Ltda,
- Z-6040 Alkoxysilane based silane known as "Z-6040
- Green Pigment Green pigment known as "HOSTATINT GG-BR", from Clariant S/A, Sao Paulo, S.P., Brazil
- SiC F500 Silicon carbide particles available as "BSICSK
- Antifoam BC-1137 Silicone based antifoam available as "1520 Silicone
- a second coating of 53 parts water, 0.7 parts Emulan A, 0.1 parts Aeorsol OT, 6 parts mineral oil, 40 parts stearic acid emulsion, and 0.1 part antifoam BC-1137 was applied via a roll coater and heated in an oven for 54 seconds at 193 degrees C followed by 54 seconds at 185 degrees C.
- the total dry add-on for both coatings was 196 gsm.
- a self-contained buffing article was constructed of the resulting impregnated fibrous buffing material by stacking 50 layers of 25 cm diameter discs onto a flanged mandrel via an arbor hole. The assembled discs were compressed on the machine up to the point to keep the layers together.
- the self-contained buffing article was used to treat brass and aluminum workpieces. The test was made by rotating the self-contained buffing article at 1500 rpm. Surface finish was determined both before and after buffing using a micrometer ("Perthometer M2", Mahr Federal, Inc, Buffalo, Rhode Island). Three measurements were taken at each condition on each workpiece with the result being the average of those three readings.
- the Rz was reduced from 0.46 micrometers to 0.22 micrometers and the Rmax from 0.86 micrometers to 0.24 micrometers.
- the Rz was reduced from 0.83 micrometers to 0.4 micrometers and the Rmax from 0.99 micrometers to 0.44 micrometers.
- Example 2 The buffing article of Example 2 was prepared identically to that of Example 1 except that 35.3 parts of micronized calcined aluminum oxide were replaced by Silicon Carbide "BSICSK F500".
- a buffing wheel of Example 2 was evaluated on both brass and aluminum.
- the surface finish was evaluated both before and after the buffing operation buffing using a micrometer ("Perthometer M2", Mahr Federal, Inc, Buffalo, Rhode Island). Three measurements were taken at each condition on each workpiece with the result being the average of those three readings.
- the Rz was reduced from 3.17 micrometers to 0.53 micrometers and the Rmax from 3.62 micrometers to 0.68 micrometers.
- the Rz was reduced from 6.81 micrometers to 0.84 micrometers and the Rmax from 7.36 micrometers to 1.41 micrometers.
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Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US13/993,383 US20140065935A1 (en) | 2010-12-14 | 2011-12-02 | Self-contained fibrous buffing article |
JP2013544535A JP2014500158A (ja) | 2010-12-14 | 2011-12-02 | 内蔵型繊維性バフ研磨物品 |
EP11849118.2A EP2651602A1 (fr) | 2010-12-14 | 2011-12-02 | Article de polissage fibreux autonome |
BR112013014474A BR112013014474A2 (pt) | 2010-12-14 | 2011-12-02 | artigo de polimento fibroso de peça única |
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US42276010P | 2010-12-14 | 2010-12-14 | |
US61/422,760 | 2010-12-14 |
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WO2015085211A1 (fr) * | 2013-12-06 | 2015-06-11 | Saint-Gobain Abrasives, Inc. | Article abrasif revêtu comprenant un matériau non tissé |
US9108299B2 (en) | 2011-06-14 | 2015-08-18 | 3M Innovative Properties Company | Self-contained fibrous buffing article |
WO2015157414A1 (fr) * | 2014-04-10 | 2015-10-15 | Shell Oil Company | Procédé de fabrication d'une membrane de séparation de gaz supportée |
US9908214B2 (en) | 2010-12-14 | 2018-03-06 | 3M Innovative Properties Company | Self-contained fibrous buffing article |
DE102017105394A1 (de) * | 2017-03-14 | 2018-09-20 | Eickelit GmbH | Polierscheibe oder -walze |
CN108942722A (zh) * | 2018-05-30 | 2018-12-07 | 安徽佑开科技有限公司 | 一种磨钢球砂轮结合剂生产工艺 |
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JP6960721B2 (ja) * | 2016-04-28 | 2021-11-05 | キョーラク株式会社 | 洗浄用のフィラメント、及び3dプリンタのクリーニング方法 |
JP7204756B2 (ja) | 2017-12-29 | 2023-01-16 | サンーゴバン アブレイシブズ,インコーポレイティド | 研磨バフ物品 |
CN108942704A (zh) * | 2018-05-30 | 2018-12-07 | 安徽佑开科技有限公司 | 一种磨钢球砂轮结合剂配方 |
CN111203811B (zh) * | 2020-03-18 | 2022-02-22 | 湖南科技大学 | 一种具有自润滑功能和良好电解成膜性能的钎焊砂轮制备及电解修整方法 |
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US20100159805A1 (en) * | 2008-12-22 | 2010-06-24 | Goldsmith Paul S | Rigid or flexible, macro-porous abrasive article |
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US9108299B2 (en) | 2011-06-14 | 2015-08-18 | 3M Innovative Properties Company | Self-contained fibrous buffing article |
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WO2015085211A1 (fr) * | 2013-12-06 | 2015-06-11 | Saint-Gobain Abrasives, Inc. | Article abrasif revêtu comprenant un matériau non tissé |
WO2015157414A1 (fr) * | 2014-04-10 | 2015-10-15 | Shell Oil Company | Procédé de fabrication d'une membrane de séparation de gaz supportée |
US20150290591A1 (en) * | 2014-04-10 | 2015-10-15 | Shell Oil Company | Method of making a supported gas separation membrane |
CN106163649A (zh) * | 2014-04-10 | 2016-11-23 | 国际壳牌研究有限公司 | 制造负载型气体分离膜的方法 |
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DE102017105394A1 (de) * | 2017-03-14 | 2018-09-20 | Eickelit GmbH | Polierscheibe oder -walze |
DE102017105394B4 (de) | 2017-03-14 | 2018-12-27 | Eickelit GmbH | Polierscheibe oder -walze |
CN108942722A (zh) * | 2018-05-30 | 2018-12-07 | 安徽佑开科技有限公司 | 一种磨钢球砂轮结合剂生产工艺 |
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EP2651602A1 (fr) | 2013-10-23 |
BR112013014474A2 (pt) | 2016-09-20 |
US20140065935A1 (en) | 2014-03-06 |
JP2014500158A (ja) | 2014-01-09 |
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