US3821111A - Solid lubricant - Google Patents

Solid lubricant Download PDF

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Publication number
US3821111A
US3821111A US00278936A US27893672A US3821111A US 3821111 A US3821111 A US 3821111A US 00278936 A US00278936 A US 00278936A US 27893672 A US27893672 A US 27893672A US 3821111 A US3821111 A US 3821111A
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percent
solid lubricant
tungstate
graphite
sodium fluoride
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US00278936A
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English (en)
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A Sugafuji
W Abe
Y Terada
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Oiles Industry Co Ltd
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Oiles Industry Co Ltd
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    • 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
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • 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
    • C10M2201/041—Carbon; Graphite; Carbon black
    • C10M2201/042—Carbon; Graphite; Carbon black halogenated, i.e. graphite fluoride
    • 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
    • C10M2201/05—Metals; Alloys
    • 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
    • C10M2201/08—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
    • C10M2201/085—Phosphorus oxides, acids or salts
    • 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
    • C10N2040/02—Bearings
    • 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

  • ABSTRACT This invention is based on a finding in which an addition of 10 30 wt percent of alloy powders to the solid lubricant of graphite-sodium fluoride or graphitesodium fluoride-tungusten disulfide suitable for use at high temperature contributes to improvements of the mechanical strength as well as the friction coefficient, the preferable alloy being that of the composition of 77Cu-23Pb or 90Cu-5Sn-5Pb.
  • Graphite tends to bring an increase of a friction coefficient at an atmoshpere of about 400C and also-to be inferior to a film forming ability, while molybdenum disulfide is superior to a film forming ability and a migration property to the mating bearing surface, but molybdenum disulfide comes into question as a lubricating material at the high temperature since an oxidative wear of bearing becomes excessive in an atmospheric temperature of more than about 350C.
  • This invention relates to the solid lubricant suitable for the use of high temperature atmosphere having the following compositions, namely i a. 55 97 wt percent of graphite and 3 45 wt percent of sodium fluoride,
  • the solid lubricant of this invention possesses the properties of bearing to the use of high temperature atmosphere (room temperature to about 500C) and variousother properties of protecting the oxidative wear, enhancing the film forming ability and prolonging a film life.
  • FIG. 1 is a graph of showing an interrelationship between the compounding ratio of sodium fluoride to graphite and a wear rate of the bearing.
  • FIG. 2 is a graph of showing the interrelationship between the migrating amount of the solid lubricant to the mating surface under the same conditions as those of the FIG. 1.
  • FiG. 3 is a graph of showing the interrelationship between the migrating amount of the solid lubricant to the mating surface and a friction time under the same conditions as those of the FIG. 1.
  • the invention is based on the provision of the solid lubricant suitable for the use of high temperature having the compositions a h as mentioned above.
  • the solid lubricant of buried type manufactured by uniformly mixing a graphite flake having a particle size of less than mesh of Tyler standard slieve with fine powders of sodium fluoride having a particle size of less than 200 mesh and then pressure molding the mixture into a metallic mold under a pressure of about l,000 Kglcm 2.
  • the solid lubricant of buried type manufactured by uniformly mixing the graphite flake having the particle size of less than 150 mesh with fine powders of tungsten disulfide having a mean particle size of 2 microns and sodium fluoride having the particle size of less than 200 mesh and then molding the mixture obtained into the metallic mold under the pressure of 1,000 Kg/cm.
  • the solid lubricant of the paste type manufactured by uniformly mixing the graphite flake having the particle size of less than 150 mesh with fine powders of sodium fluoride having particle size of less than 200 mesh and then further mixing an aqueous solution of sodium meta-phosphate (NaPO as the binder into the resulting mixture to form the solid lubricant suitable for covering the sliding surface of the bearing.
  • the solid lubricant of the paste type manufactured by uniformly mixing the graphite flake having the particle size of less than 150 mesh with fine powders of tungsten disulfide having the mean particle size of 2 microns and sodium'fluoride having the particle size of less than 200 mesh and then further mixing the aqueous solution of sodium metaphosphate (NaPO as the binder into the resulting mixture to form the solid lubricant suitable for cov- 5 ering the sliding surface of the bearing.
  • NaPO sodium metaphosphate
  • the solid lubricant having high strength manufactured by heating the paste obtained from the methods of said items 3 and 4 to remove most of water contained therein and then molding said paste into the metallic mold under the pressure of 1,000 Kg/cm and further heating said paste into an oven at about 200C.
  • a cylinderical solid lubricant of buried type manufactured by uniformly mixing the graphite flake having the particle size of less than 150 mesh with sodium fluoride having the particle size of less than 200 mesh and adding to said mixture, alloy powders of less than 150 mesh consisting 90 wt percent Cu, 5 wt percent Sn and 5 wt percent Pb and after uniformly mixing, premolding under the pressure of 1,000 Kg/cm and then sintering the mixture obtained at the temperature of about 800C in N gas atmosphere. 2
  • the cylinderical solid lubricant of buried type manufactured by uniformly mixing the graphite flake having the particle size of less than l50 mesh with fine powders of tungsten disulfide having the mean particle size of 2 microns and sodium fluo- 3O ride having the particle size of less than 200 mesh and adding to said mixture, alloy powders of less than 150 mesh consisting 90 wt percent Cu, 5 wt percent Sn and 5 wt percent Pb and after uniformly mixing, premolding under the pressure of 1,000 5 Kg/cm and then sintering the mixture obtained at the temperature of about 800C in N gas atmosphere.
  • the cylinderical solid lubricant of buried type manufactured by uniformly mixing the graphite 40 flake having the particle size of less than 150 mesh with sodium fluoride having the particle size of less than 200 mesh alloy powders having the particle size of less than 150 mesh and consisting 90 wt percent Cu, 5 wt percent Sn and 5 wt percent Pb and sodium tungstenate (Na WO having the particle size of less than 200 mesh and premolding the mixture obtained, under the pressure of 1,000 Kg/cm and then sintering said mixture at the temperature of about 800C in N gas atmosphere.
  • the cylinderical solid lubricant of buried type manufactured by uniformly mixing the graphite flake having the particle size of less than 150 mesh with fine powders of tungsten disulfide having the mean particle size of 2 microns, sodium fluoride having the particle size of less than 200 mesh, alloy powders having the particle size of less than 150 mesh and consisting 90 wt percent Cu, 5 wt percent Sn and 5 wt percent Pb and sodium tungstenate (Na WO having the particle size of less than 200 mesh and premolding the mixture obtained, under the pressure of 1,000 Kg/cm and then sintering said mixture at the temperature of about 800C in N gas atmosphere.
  • the components to be added to the solid lubricant are shown as follows: a. Sodium fluoride powder.
  • Said powders of Mohs hardness of more than 5 are used as the additives.
  • Sodium fluoride does not give any influence to the lubricating property of graphite but protects a-change of the friction coefficient even if the temperature change of the solid lubricant occur in the compounding amount of about 1 wt percent of sodium fluoride and also improves the film forming ability in the dry friction when about 3 wt percent of sodium fluoride is mixed into graphite.
  • a preferable amount of mixing sodium fluoride is less than 45 per- 0 cent by weight.
  • the additive effect of sodium fluoride to the solid lubricant of graphite-W8 compositions is similar to that of the graphite composition.
  • the additive effect of tungsten disulfide will bring an increase of the lubricating property and an improvement of the film forming ability in a relatively low temperature region.
  • the heat resistance property of tungsten disulfide itself is improved to such extent that the solid lubricant may be used in the high temperature such as 400 500C or more than one by the addition of sodium fluoride.
  • the additional range or extent of tungsten disulfide is preferable to be less than 30 wt percent.
  • Tungsten disulfide may be added in an upper limited amount of said range in the use of relatively low temperature.
  • the compounding amount of tungsten disulfide may gradually decrease according to the increase of the use temperature. By the reason of that in a high temperature of about 400 500C, the durability of film becomes more important than the decrease of friction, the addition of tungsten disulfide attributes to the depression of the friction coefficient but the durability of film will decrease.
  • the addition of tungsten disulfide will have to be controlled in lesser extent.
  • the solid lubricant not I containing any tungsten disulfide is applicable in rather high temperature.
  • the table 1 shows the solid lubricant of the present invention having various compositions.
  • Sodium meta-phosphate may be used for forming the film of the solid lubricant on the mating surface of the hearing as the binder.
  • Sodium meta-phosphate may be used for forming a block type solid lubricant by heating the paste to remove the most of water contained in the paste, and then molding it into the metallic mold and then sintering and further may be used for forming the film of the solid lubricant on the mating surface of bearing by coating said surface with the paste of the solid lubricant and heating it to about 200C to remove the most of water contained therein and then backing the molded article into the oven at the temperature of 200C or molding into the hot press under a high temperature and a high pressure.
  • sodium meta-phosphate itself does not give any lubricating property, it is preferable to add 5 wt percent of sodium meta-phosphate in the film forming use, while to add less than wt percent of sodium meta-phosphate in the block type solid lubricant use.
  • an abrasion amount of the bearing was measured about the solid lubricants containing various amounts of sodium fluoride by burying it into the mating surface of a cylindrical bronze casting (JIS BS 6) using an opposite mating bearing of 545C under the test conditions of the temperature of 500C, the sliding rate of 3.5 m/min and the surface pressure of Kg/cm at every 20 hours.
  • composition of said bronze casting corresponds to 81.0 87.0 wt percent Cu, 4.0 6.0 wt percent Sn, 4.0 7.0 wt percent Zn and 3.0 6.0 wt percent Pb.
  • the area of the solid lubricant to the total area of the mating surface corresponds to 30 wt percent.
  • the migrating amount of solid lubricant remarkably increases when the compounding amount of sodium fluoride reaches more than 50 wt percent and that the friction coefficient does not change remarkably showing a value of about 0.2 when said compounding amount reaches less than wt percent and also that the friction coefficient reaches to the value of 0.4 when the compounding amount of sodium fluoride reaches to wt percent of sodium fluoride.
  • curve (A) shows the test result of the solid lubricant having the composition of test No. 5 of table 1
  • curve (B) shows that of the solid lubricant having the composition of test No. l8 of table I
  • curve (C) shows that of a film of the solid lubricant having the composition of test No. l8 mixed with 8 wt percent of NaPO as the binder.
  • Curves (D) and (E) show comparative test results of graphite or graphite containing 10 wt percent of tungsten disulfide respectively.
  • the film formed on the mating surface of the bearing has clearly observed by a. nacked eyes to be a smooth and glossy black film.
  • the friction coefficient having the compositions as shown in the curves (A) and (B) was 0.15 0.20, until a lapse of 20 hours, 0.20 0.25 after 40 hours, while the friction coefficient having the composition as of thickness of the migrated coatings amounts to 4 6 microns when the weight increase of the mating surface reaches 50 mg, while said value amounts to less than I micron when said weight increase reaches to ID mg.
  • the metal powders especially the mixture of Cu and Pb powders or the mixture of Cu, Sn and Pb powders are used as the binder, the mechanical strength, hardness, antifriction property and antiwearing property of the molded solid lubricant are remarkably improved without any depression of an inherent lubricating property of graphite, tungsten disulfide and sodium fluoride.
  • composition and the bearing property are shown in the table 2.
  • the solid libricant having the composition of graphite l5 tungsten disulfide 10 sodium fluoride was used compounding the alloy powders as the binder.
  • test conditions are shown as follows.
  • the pellets of the solid lubricant having the composition of table 2 were buried on the sliding surface of the cylindrical bronze castings (JIS BC6).
  • the area of the solid lubricant buried corresponds to 30 wt percent of the total area of the sliding surface.
  • the opposite mating material is l3 Cr steel, and the temperature of a heat treatment for forming the pellet is 700 850C.
  • the test was effected under the conditions of the surface pressure of 50 Kg/cm and the sliding rate of 3.5 m/min at the temperature of 500C for 20 hours.
  • the compounding ratio of the metal powders to the solid lubricant is preferable to be 10 30 wt percent. If the compounding ratio of the metal powders is lessthan said range, the mechanical strength of the solid lubricant formed, decreases whereby the solid lubricant buried tends to break during sliding and to increase the friction coefficient. While if e said ratio is more than said range, the mechanical strength of the solid lubricant increases but the friction coefficient increases whereby the friction will increase.
  • the friction coefficient and the abrasion amount of the solid lubricant of the pellet type depend on the treating temperature even if the composition of the solid lubricant is same.
  • the temperature of about 700 850C is preferable. It has been found in the table 2 that the allowable limitation in the abrasion amount of the solid lubricant amounts to 0.10 mm and that if the abrasion amount of the solid lubricant is beyond the said limitation, a scuffing abrasion will suddenly increase whereby the friction coefficient reaches to more than 0.30.
  • the solid lubricant comprising 70 90 wt percent of the base lubricant having the compositions of 55 97 graphite and 3 45 sodium fluoride, and 30 wt percent of said alloy powders as well as the solid lubricant comprising 70 90 wt percent of the base lubricant having 3 45 wt percent of sodium fluoride, less than 30 wt percent of tungsten disulfide and residual amount of graphite, and 10 30 wt percent of said alloy powders.
  • the bearing properties of the solid lubricant having the composition of graphite, tungsten disulfide, sodium fluoride and the said alloy powders as the binder and also metal salt of tungstate are explained as follows.
  • Said alloy powder comprises Cu and Pb powders or Cu, Sn and Pb powders
  • said tungstate comprises alkali salts of tungstate such as sodium tungstate (Na potassium tungstate K WO,) alkali earthmetal of tungstate such as barium tungstate (BaWO and metal salt of tungstate such as lead tungstate (PbWO zinc tungstate (ZnWO copper tungstate (CuWO and cadmium tungstate (CdWO
  • a strong film or coatings is formed on the friction surface of the bearing in especially a high temperature thereby protecting a base metal and assisting the lubricating property of graphite, tungsten disulfide and sodium fluoride, and also prolonging the bearing life.
  • the solid lubricants having the composition of 90 (75 graphite tungsten disulfide 10 sodium fluoride) 10 (90Cu-5Sn-5Pb) and various sorts of metal salts of tungstate were tested.
  • the solid lubricant having low friction coefficient is manufactured by adding 5 4 20 wt percent of lead tungstate to the said lubricant.
  • the friction coefiicient and the abrasion amount of The similar good results have been obtained in the solid lubricant having the composition of 70 90 wt percent of 97 graphite 3 45 NaF) l0 30 wt percent of (77Cu-23Pb or 90Cu-5Sn-5Pb) and also the solid lubricant comprising 5 20 wt percent of the metal salt of tungstate and 80 95 wt percent of the base lubricant having the composition of 90 wt percent of less than 30 wt percent of W8 3 45 wt percent of NaF residual amount of graphite l0 30 wt percent of said metal powders respectively.
  • a solid lubricant comprising 55 97 percent by weight of graphite, 3 45 percent by weight of sodium fluoride and 10 percent by weight of alloy powders of 77Cu-23Pb or 90Cu-5Sn-5Pb on the total basis of graphite and sodium fluoride.
  • a solid lubricant comprising 3 45 percent by weight of sodium fluoride, less than 30 percent by weight of tungsten disulfide, 25 97 percent by weight of graphite and 10 30 percent by weight of the alloy powders of 77Cu-23Pb or 90Cu-5Sn-5Pb on the total basis of graphite and sodium fluoride.
  • a solid lubricant as claimed in the claim 2 in which 5 20 percent by weight of the metal salt of tungstate are added to the solid lubricant of the claim 2.
  • a solid lubricant as claimed in claim 3 in which less than 30 percent by weight of tungsten disulfide is added to the solid lubricant.
  • a solid lubricant as claimed in claim 4 in which the metal salt of tungstate added is from the group consisting of sodium tungstate, potassium tungstate, barium tungstate, lead tungstate, zinc tungstate, copper tungstate, and cadmium tungstate.
  • a solid lubricant as claimed in claim 3 in which the metal salt of tungstate added is from the group consisting of sodium tungstate, potassium tungstate, barium I tungstate, lead tungstate, zinc tungstate, copper tungstate, and cadmium tungstate.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Sliding-Contact Bearings (AREA)
  • Powder Metallurgy (AREA)
US00278936A 1971-08-19 1972-08-09 Solid lubricant Expired - Lifetime US3821111A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46062609A JPS5128786B2 (no) 1971-08-19 1971-08-19

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US3821111A true US3821111A (en) 1974-06-28

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US00278936A Expired - Lifetime US3821111A (en) 1971-08-19 1972-08-09 Solid lubricant

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US (1) US3821111A (no)
JP (1) JPS5128786B2 (no)
DE (1) DE2240829C3 (no)
FR (1) FR2149556B1 (no)
GB (2) GB1409921A (no)
SE (1) SE380287B (no)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000981A (en) * 1974-12-28 1977-01-04 Oiles Industry Co., Ltd. Sintered self-lubricating article
DE2923579A1 (de) * 1979-06-11 1980-12-18 Mitrofanova Geb Zaprudskaja Antifriktionspaste
US20050232757A1 (en) * 2003-05-27 2005-10-20 General Electric Company Wear resistant variable stator vane assemblies
US20060029494A1 (en) * 2003-05-27 2006-02-09 General Electric Company High temperature ceramic lubricant
US20060245676A1 (en) * 2005-04-28 2006-11-02 General Electric Company High temperature rod end bearings
US20080248308A1 (en) * 2005-02-25 2008-10-09 Weintritt Donald J Method of making graphite-coated particulate materials
CN113088885A (zh) * 2021-03-29 2021-07-09 中国科学院宁波材料技术与工程研究所 一种复合氧化物渗硫宽温域润滑薄膜及其制备方法与应用

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5053830A (no) * 1973-09-13 1975-05-13
DE2445622C3 (de) * 1974-09-25 1984-02-16 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Anwendung eines Verfahrens zur Erzeugung von festhaltenden Überzügen auf umzuformenden Teilen aus Aluminium
DE3001102C2 (de) * 1980-01-14 1982-09-23 Stefan 6057 Dietzenbach Graichen Festschmierstoff
US7794512B2 (en) * 2007-03-16 2010-09-14 Afton Chemical Corporation Supplying tungsten to a combustion system or combustion system exhaust stream containing iron

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000981A (en) * 1974-12-28 1977-01-04 Oiles Industry Co., Ltd. Sintered self-lubricating article
DE2923579A1 (de) * 1979-06-11 1980-12-18 Mitrofanova Geb Zaprudskaja Antifriktionspaste
US20050232757A1 (en) * 2003-05-27 2005-10-20 General Electric Company Wear resistant variable stator vane assemblies
US20060029494A1 (en) * 2003-05-27 2006-02-09 General Electric Company High temperature ceramic lubricant
US7220098B2 (en) 2003-05-27 2007-05-22 General Electric Company Wear resistant variable stator vane assemblies
US20080248308A1 (en) * 2005-02-25 2008-10-09 Weintritt Donald J Method of making graphite-coated particulate materials
US7666469B2 (en) * 2005-02-25 2010-02-23 Superior Graphite Co. Method of making graphite-coated particulate materials
US20060245676A1 (en) * 2005-04-28 2006-11-02 General Electric Company High temperature rod end bearings
US7543992B2 (en) 2005-04-28 2009-06-09 General Electric Company High temperature rod end bearings
CN113088885A (zh) * 2021-03-29 2021-07-09 中国科学院宁波材料技术与工程研究所 一种复合氧化物渗硫宽温域润滑薄膜及其制备方法与应用

Also Published As

Publication number Publication date
DE2240829C3 (de) 1975-04-17
FR2149556B1 (no) 1975-03-07
JPS4828867A (no) 1973-04-17
DE2240829B2 (de) 1974-08-08
GB1409921A (en) 1975-10-15
SE380287B (sv) 1975-11-03
DE2240829A1 (de) 1973-03-01
FR2149556A1 (no) 1973-03-30
JPS5128786B2 (no) 1976-08-21
GB1403621A (en) 1975-08-28

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