US3528789A - Lubricating composition applied to boron nitride grinding wheels - Google Patents

Lubricating composition applied to boron nitride grinding wheels Download PDF

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Publication number
US3528789A
US3528789A US729395A US3528789DA US3528789A US 3528789 A US3528789 A US 3528789A US 729395 A US729395 A US 729395A US 3528789D A US3528789D A US 3528789DA US 3528789 A US3528789 A US 3528789A
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grinding
lubricant
boron nitride
abrasive
solid
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Wilfred F Mathewson Jr
Robert S Owens
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General Electric Co
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General Electric Co
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • 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
    • 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
    • B24D3/344—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 the bonding agent being organic
    • 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
    • B24D3/346—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 utilised during polishing, or grinding operation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/043—Sulfur; Selenenium; Tellurium
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/061—Carbides; Hydrides; Nitrides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/081—Inorganic acids or salts thereof containing halogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/16—Carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/18—Ammonia
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of saturated carboxylic or carbonic acid
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of saturated carboxylic or carbonic acid
    • C10M2209/062—Vinyl esters of saturated carboxylic or carbonic acids, e.g. vinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/101—Condensation polymers of aldehydes or ketones and phenols, e.g. Also polyoxyalkylene ether derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/08—Solids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Definitions

  • the solid dry lubricant is supplied by contacting the working surface of the abrasive tool with a rod or other shaped body containing the solid dry lubricant such that the lubricant is rubbed onto the abrasive tool as the grinding proceeds.
  • the preferred composition for the shaped lubricant body is a mixture of molybdenum disulfide, an active diluent such as sulphur, an adhesive material to provide better transfer of the lubricant to the working surface of the abrasive tool, and a resin binder.
  • This invention relates to a method and composition for grinding whereby stock is removed from a workpiece by abrading it with an abrasive tool such as a grinding wheel in which the abrasive is cubic boron nitride while simultaneously applying one or more of certain dry lubricants to the working surface of the grinding wheel.
  • an abrasive tool such as a grinding wheel in which the abrasive is cubic boron nitride while simultaneously applying one or more of certain dry lubricants to the working surface of the grinding wheel.
  • borazon is a superb abrasive grain material for grinding wheels and similar abrasive tools. [It can be bonded and formed into grinding wheels and the like either by means of a metal bond, an organic resin bond or by a vitreous bond.
  • Friction is symtomatic of sliding contact which, in the case of grinding, occurs at the abrasive crystal-workpiece interface. This intimate contact, along with the heat generated by friction, can cause abrasive or adhesive wear and can result in a detrimental chemical reaction between the abrasive and the workpiece. 'In addition, the heat of friction can cause premature bond failure, thermal stress failure of the abrasive and undue workpiece damage. Hence, it is well known to apply lubricant to the grinding wheelworkpiece interface during grinding operations.
  • liquid lubricants such as emulsifiable oils are used which additonally serve as a cooling medium; however, it is also known that solid lubricants, for example graphite, can be used.
  • solid lubricants for example graphite
  • US. Pat. 3,321,287 discloses the use of a graphite lubricant with grinding wheels of various types and reports improvements in wheel life of about 25%.
  • the solid lubricants that are included within the scope of the invention are, in addition to hexagonal boron nitride, those solid lubricants which have the general lamellar crystal structure of cadmium iodide or molybdenum disulfide. These crystal structures are described in more detail at pages 278, 280 and 397 of Structural Inorganic Chemistry, A. F. Wells, Clarendon Press, 2nd edition, 1950. Page 278 of this publication contains the following listing:
  • Cd I structure CdIg, 'CaI MrgI Ph l- Mnl Fel C01 Ybl MgBr- FeBr C0Br CdBr- NiBr TiCl TiI
  • the solid dry lubricant can be supplied to the working surface of the grinding wheel or other abrasive tool during the grinding operation in any of a number of ways.
  • the solid lubricant can be formulated into the grinding tool itself.
  • the working surface of the [grinding tool during its rotary or other motion in the grinding operation, is in contact with a rod of easily abradable material containing the solid dry lubricant such that as the working surface of the abrasive tool engages the workpiece, it has a thin deposit of the solid dry lubricant thereon.
  • the relatively soft, easily abradable body in contact wih the moving working surface of the borazon abrasive tool consists essentially of a resin-bonded mixture of the solid dry lubricant plus an active diluent such as sulphur plus a material which functions as an adhesive to better assure transfer and adherence of the solid lubricant onto the surface of the tool.
  • the preferred organic resins for use as a bonding medium for the lubricant body are the thermosetting resins, especially epoxy and polyester resins.
  • the thermoplastic resins such for example as the acrylics and the vinyls, can also be used though they do not provide as strong a bond as does epoxy or polyester resin.
  • Certain of the thermosetting resins, for example the phenolics have the disadvantage, as compared with epoxy or polyester resin, of being somewhat brittle.
  • the adhesive ingredient we prefer to use a silane, gamma aminopropyltriethoxysilane being aspecially excellent.
  • Other materials which serve well as the adhesive are the higher alcohols such as octadecanol and triethanolamine.
  • solid or liquid organic compounds having amine or hydroxyl groups function as adhesives by improving the adherence of the solid dry lubricant to the grinding wheel. While the adhesive ingredient is generally desirable, it is not essential.
  • the precise proportions of ingredients used in the formulation of the body should be such as to supply to the surface of the abrasive tool a thin deposit of the solid dry lubricant and yet with the body having sufficient strength and hardness to assure against breakage or other rapid degeneration of the body during the grinding operation.
  • the following composition, expressed in percent by volume, has been found to be outstandingly excellent: Molybdenum disulfide about 32%, sulphur about 22%, gamma aminopropyltriethoxysilane about 4%, epoxy resin about 42%.
  • this composition is shaped into a cylindrical rod of say about .1 inch diameter and the epoxy resin then cured over a period of about 12 hours at room temperature with a 3-hour post cure at 90 C. in the practice of the invention, such a rod is consumed at the rate of about inches per hour at normal grinding speeds.
  • lubricant compositions made in accordance with the invention are as follows:
  • Grinding efficiency can be determined and expressed in terms of the grinding ratio, i.e., the ratio between the rate of stock removal and the rate of grinding wheel wear. The higher the ratio, the greater the efiiciency. With the present invention, increases of as high as l000% in grinding ratio can be accomplished.
  • the grinding ratio was 33.
  • the grindng ratio was 400'.
  • the lubricant can, if desired, be formulated into the abrading tool itself. Where this is done, it is desirable that the solid dry lubricant be formulated into the abrading tool in an amount of from about 5% to 25% by volume of the total constituents of the abrading tool composition.
  • the percentages being by volume:
  • a lubricating composition for application to cubic crystal boron nitride grain grinding wheels to provide lubrication at the surface of said wheels during grinding said composition comprising a mixture of from about 30% to 60% by volume thennosetting organic bonding resin and at least about 30% by volume solid dry lubricant selected from the group consisting of hexagonal born nitride, molybdenum disulfide, or an inorganic metal halide having the lamellar crystal structure of cadmium iodide or molybdenum disulfide, and mixtures thereof, the balance of said mixture being composed of essentially non-abrasive materials.
  • a lubricating composition as claimed in claim 1 containing about 32% by volume molybdenum disulfide, 22% by volume sulfur, 4% by volume gamma aminopropyltriethoxysilane, and 42% by volume epoxy resin.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Lubricants (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US729395A 1968-05-15 1968-05-15 Lubricating composition applied to boron nitride grinding wheels Expired - Lifetime US3528789A (en)

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US72939568A 1968-05-15 1968-05-15

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US3528789A true US3528789A (en) 1970-09-15

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US (1) US3528789A (xx)
JP (2) JPS529785B1 (xx)
BE (1) BE732930A (xx)
CH (1) CH541391A (xx)
DE (1) DE1924247C3 (xx)
FR (1) FR2008603A1 (xx)
GB (1) GB1277481A (xx)
NL (1) NL166202C (xx)
SE (1) SE339184B (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779727A (en) * 1971-07-19 1973-12-18 Norton Co Resin-bonded abrasive tools with metal fillers
US3986847A (en) * 1973-06-15 1976-10-19 Cincinnati Millacron, Inc. Vitreous bonded cubic boron nitride abrasive articles
US4021208A (en) * 1972-08-07 1977-05-03 Tyrolit-Schleifmittelwerk Swarovski K.G. Abrasive article
US4239501A (en) * 1978-03-07 1980-12-16 Wirth John C Method for preserving the grinding characteristics of a grinding tool
US4338750A (en) * 1980-10-28 1982-07-13 General Electric Company Method for applying organopolysiloxane fluids to grinding wheels containing cubic boron nitride abrasives
US4652277A (en) * 1986-04-25 1987-03-24 Dresser Industries, Inc. Composition and method for forming an abrasive article
US6419876B1 (en) * 1999-05-21 2002-07-16 Zenith Sintered Products, Inc. Machinability of powder metal components
CN113199415A (zh) * 2021-05-19 2021-08-03 万峰石材科技股份有限公司 一种人造石镜面抛光磨具及其制备方法

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BE758965A (fr) * 1969-11-14 1971-05-13 Norton Co Elements de meulage abrasifs
US4110939A (en) * 1977-06-13 1978-09-05 The Carborundum Company Cuprous oxide containing resin bonded abrasive article and process for manufacturing same
JPH0274774U (xx) * 1988-11-25 1990-06-07
JPH0274773U (xx) * 1988-11-25 1990-06-07

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DE1169833B (de) * 1960-10-03 1964-05-06 Gen Electric Verfahren zur Herstellung eines Schleif- oder Schneidkoerpers
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US2881065A (en) * 1957-02-18 1959-04-07 Mobay Chemical Corp Polishing instrument
US2904419A (en) * 1957-02-26 1959-09-15 Lea Mfg Company Packaged buffing compound
US2947617A (en) * 1958-01-06 1960-08-02 Gen Electric Abrasive material and preparation thereof
US3081161A (en) * 1959-04-23 1963-03-12 Carborundum Co Abrasive articles and their manufacture
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US3779727A (en) * 1971-07-19 1973-12-18 Norton Co Resin-bonded abrasive tools with metal fillers
US4021208A (en) * 1972-08-07 1977-05-03 Tyrolit-Schleifmittelwerk Swarovski K.G. Abrasive article
US3986847A (en) * 1973-06-15 1976-10-19 Cincinnati Millacron, Inc. Vitreous bonded cubic boron nitride abrasive articles
US4239501A (en) * 1978-03-07 1980-12-16 Wirth John C Method for preserving the grinding characteristics of a grinding tool
US4338750A (en) * 1980-10-28 1982-07-13 General Electric Company Method for applying organopolysiloxane fluids to grinding wheels containing cubic boron nitride abrasives
US4652277A (en) * 1986-04-25 1987-03-24 Dresser Industries, Inc. Composition and method for forming an abrasive article
US6419876B1 (en) * 1999-05-21 2002-07-16 Zenith Sintered Products, Inc. Machinability of powder metal components
CN113199415A (zh) * 2021-05-19 2021-08-03 万峰石材科技股份有限公司 一种人造石镜面抛光磨具及其制备方法
CN113199415B (zh) * 2021-05-19 2023-11-03 万峰石材科技股份有限公司 一种人造石镜面抛光磨具及其制备方法

Also Published As

Publication number Publication date
DE1924247C3 (de) 1982-05-06
NL166202C (nl) 1981-07-15
JPS529785B1 (xx) 1977-03-18
NL166202B (nl) 1981-02-16
JPS5346515B1 (xx) 1978-12-14
DE1924247B2 (de) 1981-06-19
FR2008603A1 (xx) 1970-01-23
BE732930A (xx) 1969-10-16
GB1277481A (en) 1972-06-14
SE339184B (xx) 1971-09-27
DE1924247A1 (de) 1970-08-27
NL6907251A (xx) 1969-11-18
CH541391A (de) 1973-09-15

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