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
  • B24D3/346—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
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D331/00—Heterocyclic compounds containing rings of less than five members, having one sulfur atom as the only ring hetero atom
  • C07D331/02—Three-membered rings
• • 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
  • C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
• • 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
  • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
• • 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
  • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
  • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
  • C10M2203/108—Residual fractions, e.g. bright stocks
• • 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
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/14—Synthetic waxes, e.g. polythene waxes
• • 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
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
• • 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
  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/17—Fisher Tropsch reaction products
• • 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
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
• • 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
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more 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
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/40—Fatty vegetable or animal oils
  • C10M2207/402—Castor oils
• • 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
  • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
• • 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
  • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
• • 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
  • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
  • C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
• • 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
  • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
  • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
• • 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
  • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
  • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
  • C10M2219/106—Thiadiazoles
• • 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
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/08—Groups 4 or 14
• • 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
  • C10N2040/25—Internal-combustion engines
• • 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
  • C10N2040/25—Internal-combustion engines
  • C10N2040/251—Alcohol-fuelled engines
• • 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
  • C10N2040/25—Internal-combustion engines
  • C10N2040/255—Gasoline engines
• • 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
  • C10N2040/25—Internal-combustion engines
  • C10N2040/255—Gasoline engines
  • C10N2040/28—Rotary engines
• • 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—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy

Definitions

• the present invention relates to a composition for the accelerated grinding of high-speed mechanisms.
• lubricant material for grinding of various mechanisms; these lubricants consist generally of lubricant oils, in combination ether with animal fat, mineral oils, sulphur and zinc oxide, or with a neutral soap and titanium oxide, or contain a colloidal dispersion of iron oxides or sulphids.
• lubricants are however hardly suitable for grinding purposes, since they generally leave permanently an amount of abrasive on the article being ground, even after a sufiicient grinding of the interfaces has been achieved.
• the French patent specification No. 1,256,683, flied Feb. 12, 1960 has disclosed a method and a composition for accelerated grinding, wherein a coating is applied onto the friction surfaces of the finish-machined pieces, consisting of a colloidal composition containing at least one polar oil and a metalloid such as sulphur, phosphourous or chlorine, adapted to combine in the heat with the metal to form a salt, the mechanism being set up and operated in order to determine through friction the amount of heating necessary for the reaction.
• the grinding agent used is a composition comprised of oleic acid, castor oil, sulphur fixed on the oleic acid, and lead stearate as a thickening agent.
• an abrasive consisting of a metal oxide incorporated in a lubricating paste comprised of a polar compound onto which is chemically fixed a metalloid adapted to readily separate, in the nascent 3,345,146 Patented Oct. 3, 1967 state, from the acid, under the effect of the operating tem perature, to form with said metal oxide a salt melting at a temperature to lower than the melting point of the surface or of the surfaces to be polished, the melting point of the metal oxide being higher than that of said surfaces.
• composition may, besides, contain a certain amount of a thickening agent, such as a petroleum jelly such as that sold under the trademark Vaseline.
• a thickening agent such as a petroleum jelly such as that sold under the trademark Vaseline.
• iron oxide Fe O
• Synthetic Colcothar the melting point of which is 1535 C., approximately.
• the amount of iron oxide to be used may vary in a wide range, from 1 to 30% by weight, but should remain substantially lower than the percentage corresponding to the combination with oxygen of the total amount of the metalloid, said amount being also a function of the desired grinding time.
• a metalloidized polar compound use is preferably made of the oleic acid onto which a sulfur atom is fixed by a loose double bond.
• the compound may be termed a sulfurous oleic acid (or even thiooleic acid) and corresponds substantially to the following developed formula:
• the thiooleic acid-or sulfurous oleic acidwherein the sulfur is fixed by the loose double bond is prepared by heating together equimolecular proportions of oleic acid and sulfur at a temperature higher than C., but not exceeding C.
• an advantageous formulation of the corresponding composition corresponds to 1 to 20 parts, by weight, of natural or synthetic iron oxide and 99 to 80 parts, by weight, of a mixture comprising:
• Castor oil Such a composition is suitable when the grinding operation is not liable to cause any gumming due to the presence of castor oil.
• the method of using the composition according to the invention comprises applying a coating of said composition by means for instance of a chamois leather, to the friction surfaces, preliminarily washed for instance with trichloroethylene or a similar substance, and subsequently effecting the grinding, while normally lubricating in the hydrodynamic phase, under a certain pressure during the operation.
• This normal lubrication is ensured either in the casing containing the moving pieces to be polished, or in a set-up casing, in the case of an individual piece to be treated, by means of an ordinary lubricant admixed with-preferably sulfurous-oleic acid.
• the grinding is of course effected with the ignition and fuel supply out off, for instance at the end of the production line.
• Example By way of example of a composition for grinding en- 1 5% i.e. 50 grams. 7 placing in the casing a S.A.E. 20 lubricating oil in the proportion ranging from 1 to 99 parts mixed to an oleic acid in the proportion ranging from 99 to 1 parts, a preferred composition containing 60 part of S.A.E. 20 oil and 40 art of sulfurous oleic acid.
• the amounts of iron oxide and thiooleic acid used are such that, as shown above, only a portion of the acid sulfur will combine with the iron oxide to yield sulfur, while other oxide particles which were not initially converted into iron sulfide continue to come into contact with the surface asperities, thus favouring the renewal in the vicinity of these asperities, of new reactive 0 iron sulfide molecules, whereby the grinding process is accelerated. It is thus seen that after a certain interval of time, the abrasive iron oxide disappears, without it being necessary to take any particular steps, and it is therefore possible to grade at will the grinding operation. Besides, the removal of the abrasion remainderswhich have no more abrasive properties-may be effected either immediately or at a subsequent moment during the running of the engine, resulting in a highly advantageous industrial convenience.
• An internal combustion engine treated according to the conditions of the invention was ground in less than 4 hours, whereas 6 hours at least were required when using the grinding compounds, such as, for instance, those disclosed in above-mentioned French patent specification. This may be accounted for, to a certain extent, by the fact that, in the physical and chemical grinding process according to the invention, the polishing operation through abrasion may be effected in a reciprocating motion (which is the true motion of the pieces submitted to grinding in such an engine), rather than as presently done, by means of rotating motion, preferably in a single direction.
• composition according to the invention thus enables, With respect to the known grinding agents using sulfur and iron oxide, .to reduce the time required for the grinding operation, while positively eliminating any extensive, untimely and detrimental abrasive action.
• An abrasive composition for accelerated grinding of surfaces and adapted for use with lubricating oil consisting essentially of l to 20 parts by weight of ferric oxide and 99 to 80 parts by weight of a mixture of sulfurous oleic acid, petroleum jelly, lead stearate and castor oil.
• An abrasive composition for accelerated grinding of surfaces consisting essentially of lubricating oil, sulfurous oleic acid and 1 to 30% by weight of ferric oxide the amount of sulfurous oleic acid present being substantially less than the amount of ferric oxide and the remainder being lubricating oil.
• An abrasive composition for accelerated grinding of surfaces consisting essentially of 500 grams of sulfurous oleic acid, 50 grams of ferric oxide and 500 grams of petroleum jelly.
• the method of accelerated grinding of metal parts comprising cleaning the surfaces to be polished, applying thereto a grinding composition in lubricating oil, said grinding composition consisting essentially of sulfurous oleic acid and ferric oxide, grinding said parts to raise the temperature thereof to above about 300 C., said grinding step causing friction to provide nascent sulfur, and progressively forming iron sulfide during the grinding operation.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Lubricants (AREA)

Applications Claiming Priority (1)

Publications (1)

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Family Applications (1)

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Citations (3)

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• 1962
  • 1962-04-27 FR FR895899A patent/FR1359624A/fr not_active Expired
• 1963
  • 1963-04-26 DE DEG37600A patent/DE1230955B/de active Pending
• 1965
  • 1965-03-16 US US440271A patent/US3345146A/en not_active Expired - Lifetime

Patent Citations (3)

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