US3904405A - Sliding seal parts and process of making - Google Patents

Sliding seal parts and process of making Download PDF

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US3904405A
US3904405A US328926A US32892673A US3904405A US 3904405 A US3904405 A US 3904405A US 328926 A US328926 A US 328926A US 32892673 A US32892673 A US 32892673A US 3904405 A US3904405 A US 3904405A
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seal part
aluminum
part means
sliding seal
elements
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Robert A Russell
Irving J Hess
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Ametek Inc
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements

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  • ABSTRACT A sliding seal part and method of making by use of coated carbon filaments or particles with aluminum, the coated particles being subjected to heat and pressure to form the seal part.
  • Bearing or sliding seal parts. including carbon or graphite. which have self-lubricating properties are known in the art. but such have been brittle with low fatigue strength and have had a tendency to score.
  • the impregnation of formed structures of carbon filaments or particles with plastic resins or metals. such as silver. copper. bronze. cadmium or babbit. have been tried. but these have not had the required properties or strength and wear resistance.
  • carbon powder be pressed and the pressed particles put into an autoclave and immersed in a molten aluminum metal bath in said autoclave under pressure. Aluminum carbide will form between the particles in the pressed shape. A sea] so made has not been completely satisfactory and has been uneconomical to make.
  • One of the objects of the invention is to make an improved sliding seal part or piece having the desired physical characteristics.
  • Another of the objects of the invention is to provide a method for making sliding seal parts which produces seals of improved strength and physical characteristics.
  • Another object of the invention is to produce sliding seal parts in a more economical manner than previously accomplished.
  • carbon filaments or particles herein referred to as elements. are coated or plated with aluminum. This is carried out preferably by electrodeposition. Other plating methods such as electrolcss or chemical plating can be used. The plating process can be carried out at room temperature. The metal coated or plated elements are then formed under pressure and heat to the. desired seal and sliding part form. The forming can be carried out in various manners as described hereafter. It has been found that the products of the present invention have been particularly efficacious for uses such as the apex seals for the rotor of Wankel-type engines.
  • FIG. 1 is a schematic diagram of the steps involved in the invention
  • FIG. 2 is a representation of a photomicrograph (SOOX) of a part made in accordance with Example I described hereafter;
  • FIG. 3 is an example of one use of the invention which is in a Wankel engine
  • FIGv 4 is a broken perspective view of a seal as used in FIG. 3;
  • FIG. 5 is a representation of a photomicrograph of a part made in accordance with Example I] described hereafter.
  • the carbon or graphite fibers or particles are represented in box which are plated at 11 and then consolidated under heat and pressure at 12 to the form of a sliding seal part or bearing.
  • the carbon or graphite filaments or fibers can be the desired dimensions as set forth hereafter. If particles of carbon or graphite are used. then these can be sized as described hereafter.
  • the carbon elements discrete fibers or particles. are adheringly plated with aluminum by electrodeposition or by electroless deposition.
  • the bath can consist of an ether. such as ethyl ether, ethyl n-butyl ether. a mixture of ethyl and butyl ethers. anisole. phenetole or diphenyl ether; a metal hydride such as lithium hydride or lithium aluminum hydride; and anhydrous aluminum chloride.
  • an ether such as ethyl ether, ethyl n-butyl ether. a mixture of ethyl and butyl ethers. anisole. phenetole or diphenyl ether; a metal hydride such as lithium hydride or lithium aluminum hydride; and anhydrous aluminum chloride.
  • the graphite yarn used was "Thornel 400.- the trademark of Union Carbide Corp. for its brand of high strength. high modulus graphite yarn. such a yarn being comprised of 1.000 filaments, approximately 7.6 microns in diameter. twisted to form a yarn.
  • Aluminum was electrodepositcd on l2-inch lengths of graphite yarn using the methods described in the aforementioned Brenner patent. Sufficient aluminum was deposited to form an aluminum plated yarn having approximately weight percent aluminum and 40 weight percent graphite fiber. Sections of aluminum plated yarn approximately two inches long were plied together in a rectangular die and subjected to heat and pressure. The temperature was maintained at 900F. and the pressure at 4.000 p.s.i. for 30 minutes. The plated aluminum coating on the individual filaments of the graphite yarn consolidates to form a homogeneous distribution of graphite fibers in an aluminum matrix. FIG.
  • the drawing 2 of the drawing represents a 500X magnification of the cross section of the resultant composite as viewed in a direction perpendicular (90) to the orientation of the graphite fiber axis.
  • the tensile strength of the part so made was 38.000 p.s.i. as measured in a direction parallel 'to the axis of the graphite fibers.
  • the tensile strength of a comparable aluminum part of the same dimensions but not containing any graphite fiber is 10.000 p.s.i.
  • EXAMPLE II The carbon powder used was M35 1 vitreous carbon. as sold by Beckwith Carbon Co.
  • Aluminum was electrodeposited on a specific size of M35] vitreous carbon (200 mesh 325 mesh) using the methods described in the aforementioned Brenner patent. Sufficient aluminum was deposited to yield a plated powder containing 30 weight percent of aluminum and weight percent of vitreous carbon powder.
  • the plated powder was blended with sufficicnt aluminum alloy powder. designated as Al32. made by Aluminum Company of America. to yield a mixture containing 50 percent vitreous carbon by weight.
  • the blend was cold compacted at a pressure of 40,000 p.s.i. to yield a form having sufficicnt green strength to be subjected to subsequent processing.
  • step 3 The form made in step 2 was heated without pressure to a temperature of l.l00F. in a furnace containing N or an inert atmosphere for a period of 15 minutes.
  • Example [ii is the same as Example ll except that calcined anthracite or carbon powder sold under the trademark A-Carb. a trademark of U.S. Graphite Co. was used.
  • a retangular bar 05 inch in length by 0.24 inch in width and 0.34 inch in height.
  • the bar had a radius of 5/32 inch on the face subjected to wear testing.
  • test seal was held against the rotating surface of a hard chrome plated aluminum alloy disc.
  • the disc was rotated at a peripheral speed of 5.400 feet per minute.
  • the test seal was mounted on a lever arm which extends 6 inches beyond the point at which the seal touched the rotating disc. A load of 5 pounds was placed on the end of the lever arm.
  • the disc surface was lubricated with SAEZO oil. and the disc was rotated for each of the test samples for the same period of time.
  • the wear rate of the samples was determined by measuring the difference between original height of the test sample and the height after the wear test and dividing this difference in height by the length of time the test was run so as to obtain wear rates in inches of wear per hour. The results are reported in Table I.
  • the plating also can be performed by electroless or chemical plating such as chemical vapor deposition or vacuum deposition.
  • the heat and pressure or consolidation step can be carried out in various manners.
  • the plated filaments or particles can be heated in a mold which has pressure applied.
  • powder metallurgy techniques can be employed compacting under high pressure the coated elements without heat.
  • the pressure of the aluminum on the carbon provides sufficient green strength to handle the part for subsequent processing. Such is not the case when uncoated carbon powder and aluminum powder are mixed.
  • the second step is the sintcring of the formed green shape.
  • the third step optional, is coining, pressing or otherwise treating the sintered part.
  • FIG. 3 One example of use of the invention is seen in FIG. 3 wherein the seal 13 is shown in conjunction with rotor 121: of the Wankel engine 15.
  • the combination is the subject of copcnding application Ser. No. 328927, filed Feb. 2. 1973.
  • the process of producing sliding seal part means comprising the steps of adhcringly plating discrete carbon elements with aluminum. then consolidating said plated elements into sliding seal part means by pressure and heat. wherein the plating is carried out by electrodeposition from an ethereal bath containing anhydrous aluminum chloride and a'metal hydride selected from the group consisting oflithium hydride and lithium aluminum hydride.
  • the process of producing sliding seal part means comprising the steps of adheringly plating discrete carbon elements with aluminum. then consolidating said plated elements into sliding seal part means by pressure and heat. wherein the plating is carried out by electrodeposition from an ethereal bath containing anhydrous aluminum chloride and a metal hydride and wherein the ethereal bath is selected from the group consisting of ethyl ether. ethyl n-butyl ether, anisolc. phcnetole. diphenyl ether and mixtures of ethyl and butyl ethers.
  • Patent Front Page, [S14], "Sliding Seal Parts and Process of Making” should be --A Process of Making Sliding Seal Parts--.
  • Patent Front Page [S1 "Sliding Seal Parts and Process of Making” should be --A Process of Making Sliding Seal Par-ts-.

Abstract

A sliding seal part and method of making by use of coated carbon filaments or particles with aluminum, the coated particles being subjected to heat and pressure to form the seal part.

Description

United States Patent [1 1 Russell et al.
[ 51 Sept. 9, 1975 SLIDING SEAL PARTS AND PROCESS OF MAKING Inventors: Robert A. Russell, Rosemont; Irving ,1. Hess, Philadelphia, both of Pa.
Assignee: Ametek, Inc., New York, N.Y.
Filed: Feb. 2, 1973 Appl. No.: 328,926
US. Cl. 75/201; 75/212; 75/226;
204/14 N; 418/178 Int. Cl. C22C l/04 Field of Search. 117/160, 114 C, 228, DIG. 11,
117/46 CC; 418/178, 179, 113, 152; 204/14 N; 75/201, 212, 226
[56] References Cited UNlTED STATES PATENTS 3,550,247 12/1970 Evans ct al. 1 17/228 Primary Examiner-Cameron K. Weiffenbach Assistant ExaminerEdith R. Buffalow Attorney, Agent, or Firm-Smythc & Moore [57] ABSTRACT A sliding seal part and method of making by use of coated carbon filaments or particles with aluminum, the coated particles being subjected to heat and pressure to form the seal part.
6 Claims, 5 Drawing Figures PATENTEU P 9 i975 HEAT AND PRESSURE PLATING 0F METAL ON C ARBON CARBON FIBERS 0R PART! C LES SLIDING SEAL PARTS AND PROCESS OF MAKING This invention relates to sliding seal parts or the like and a method of making the parts.
Bearing or sliding seal parts. including carbon or graphite. which have self-lubricating properties are known in the art. but such have been brittle with low fatigue strength and have had a tendency to score. The impregnation of formed structures of carbon filaments or particles with plastic resins or metals. such as silver. copper. bronze. cadmium or babbit. have been tried. but these have not had the required properties or strength and wear resistance. It also has been suggested that carbon powder be pressed and the pressed particles put into an autoclave and immersed in a molten aluminum metal bath in said autoclave under pressure. Aluminum carbide will form between the particles in the pressed shape. A sea] so made has not been completely satisfactory and has been uneconomical to make.
One of the objects of the invention is to make an improved sliding seal part or piece having the desired physical characteristics.
Another of the objects of the invention is to provide a method for making sliding seal parts which produces seals of improved strength and physical characteristics.
Another object of the invention is to produce sliding seal parts in a more economical manner than previously accomplished.
In one aspect of the invention. carbon filaments or particles, herein referred to as elements. are coated or plated with aluminum. This is carried out preferably by electrodeposition. Other plating methods such as electrolcss or chemical plating can be used. The plating process can be carried out at room temperature. The metal coated or plated elements are then formed under pressure and heat to the. desired seal and sliding part form. The forming can be carried out in various manners as described hereafter. It has been found that the products of the present invention have been particularly efficacious for uses such as the apex seals for the rotor of Wankel-type engines.
These and other objects. advantages and features of the invention will become apparent from the following description and drawings which are merely exemplary.
In the drawings:
FIG. 1 is a schematic diagram of the steps involved in the invention;
FIG. 2 is a representation of a photomicrograph (SOOX) of a part made in accordance with Example I described hereafter;
FIG. 3 is an example of one use of the invention which is in a Wankel engine;
FIGv 4 is a broken perspective view of a seal as used in FIG. 3; and
FIG. 5 is a representation of a photomicrograph of a part made in accordance with Example I] described hereafter.
Referring to the flow diagram of FIG. I. the carbon or graphite fibers or particles are represented in box which are plated at 11 and then consolidated under heat and pressure at 12 to the form of a sliding seal part or bearing.
The carbon or graphite filaments or fibers can be the desired dimensions as set forth hereafter. If particles of carbon or graphite are used. then these can be sized as described hereafter.
The carbon elements. discrete fibers or particles. are adheringly plated with aluminum by electrodeposition or by electroless deposition.
In the case of electrodeposition. such an be carried out. for example. as described in U.S. Pat. No. 2.65 l .608 to Brenner in a bath as set forth therein. The bath can consist of an ether. such as ethyl ether, ethyl n-butyl ether. a mixture of ethyl and butyl ethers. anisole. phenetole or diphenyl ether; a metal hydride such as lithium hydride or lithium aluminum hydride; and anhydrous aluminum chloride.
Following are examples of manners in which the invention can be practiced.
EXAMPLE I The graphite yarn used was "Thornel 400.- the trademark of Union Carbide Corp. for its brand of high strength. high modulus graphite yarn. such a yarn being comprised of 1.000 filaments, approximately 7.6 microns in diameter. twisted to form a yarn.
Aluminum was electrodepositcd on l2-inch lengths of graphite yarn using the methods described in the aforementioned Brenner patent. Sufficient aluminum was deposited to form an aluminum plated yarn having approximately weight percent aluminum and 40 weight percent graphite fiber. Sections of aluminum plated yarn approximately two inches long were plied together in a rectangular die and subjected to heat and pressure. The temperature was maintained at 900F. and the pressure at 4.000 p.s.i. for 30 minutes. The plated aluminum coating on the individual filaments of the graphite yarn consolidates to form a homogeneous distribution of graphite fibers in an aluminum matrix. FIG. 2 of the drawing represents a 500X magnification of the cross section of the resultant composite as viewed in a direction perpendicular (90) to the orientation of the graphite fiber axis. The tensile strength of the part so made was 38.000 p.s.i. as measured in a direction parallel 'to the axis of the graphite fibers. The tensile strength of a comparable aluminum part of the same dimensions but not containing any graphite fiber is 10.000 p.s.i.
EXAMPLE II The carbon powder used was M35 1 vitreous carbon. as sold by Beckwith Carbon Co.
Aluminum was electrodeposited on a specific size of M35] vitreous carbon (200 mesh 325 mesh) using the methods described in the aforementioned Brenner patent. Sufficient aluminum was deposited to yield a plated powder containing 30 weight percent of aluminum and weight percent of vitreous carbon powder.
Sliding seal parts were formed from the aluminum plated vitreous carbon powder as follows:
1. The plated powder was blended with sufficicnt aluminum alloy powder. designated as Al32. made by Aluminum Company of America. to yield a mixture containing 50 percent vitreous carbon by weight.
2. The blend was cold compacted at a pressure of 40,000 p.s.i. to yield a form having sufficicnt green strength to be subjected to subsequent processing.
3. The form made in step 2 was heated without pressure to a temperature of l.l00F. in a furnace containing N or an inert atmosphere for a period of 15 minutes.
EXAMPLE lll Example [ii is the same as Example ll except that calcined anthracite or carbon powder sold under the trademark A-Carb. a trademark of U.S. Graphite Co. was used.
Tests were performed on articles made in accordance with prior art as described hereafter.
SAMPLE DESCRIPTION l Commercially available carbon-aluminum apex seal used in the Wankel-type engine and manufactured by the molten aluminum metal infiltration process.
2 Seal made according to the method described in Example ll.
A retangular bar 05 inch in length by 0.24 inch in width and 0.34 inch in height. The bar had a radius of 5/32 inch on the face subjected to wear testing.
Sample Si/c TEST METHOD The test seal was held against the rotating surface of a hard chrome plated aluminum alloy disc. The disc was rotated at a peripheral speed of 5.400 feet per minute. The test seal was mounted on a lever arm which extends 6 inches beyond the point at which the seal touched the rotating disc. A load of 5 pounds was placed on the end of the lever arm. The disc surface was lubricated with SAEZO oil. and the disc was rotated for each of the test samples for the same period of time. The wear rate of the samples was determined by measuring the difference between original height of the test sample and the height after the wear test and dividing this difference in height by the length of time the test was run so as to obtain wear rates in inches of wear per hour. The results are reported in Table I.
The plating also can be performed by electroless or chemical plating such as chemical vapor deposition or vacuum deposition.
The heat and pressure or consolidation step can be carried out in various manners. The plated filaments or particles can be heated in a mold which has pressure applied. Also. powder metallurgy techniques can be employed compacting under high pressure the coated elements without heat. The pressure of the aluminum on the carbon provides sufficient green strength to handle the part for subsequent processing. Such is not the case when uncoated carbon powder and aluminum powder are mixed. The second step is the sintcring of the formed green shape. The third step, optional, is coining, pressing or otherwise treating the sintered part.
One example of use of the invention is seen in FIG. 3 wherein the seal 13 is shown in conjunction with rotor 121: of the Wankel engine 15. The combination is the subject of copcnding application Ser. No. 328927, filed Feb. 2. 1973.
It should be apparent that variations can be made in details hereof without departing from the spirit of the invention except as defined in the appended claims.
What is claimed is:
l. The process of producing sliding seal part means comprising the steps of adhcringly plating discrete carbon elements with aluminum. then consolidating said plated elements into sliding seal part means by pressure and heat. wherein the plating is carried out by electrodeposition from an ethereal bath containing anhydrous aluminum chloride and a'metal hydride selected from the group consisting oflithium hydride and lithium aluminum hydride.
2. The process of producing sliding seal part means comprising the steps of adheringly plating discrete carbon elements with aluminum. then consolidating said plated elements into sliding seal part means by pressure and heat. wherein the plating is carried out by electrodeposition from an ethereal bath containing anhydrous aluminum chloride and a metal hydride and wherein the ethereal bath is selected from the group consisting of ethyl ether. ethyl n-butyl ether, anisolc. phcnetole. diphenyl ether and mixtures of ethyl and butyl ethers.
3. The process of producing sliding metal seal part means as claimed in claim 1 wherein the discrete carbon elements are vitreous carbon particles.
4. The process of producing sliding metal seal part means as claimed in claim 1 wherein the discrete carbon elements are calcined anthracite particles.
5. The process of producing sliding seal part means as claimed in claim2. wherein the discrete carbon elements are vitreous carbon particles.
6. The process of producing sliding seal part means as claimed in claim 2. wherein the discrete carbon elements are calcined anthracite particles.
'[SEAL] UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION PATENT NO.-: 3,9OLL,L|.Q5 DATED September 9, 1975 INVENTOR(S) Robert A. Russell and Irving :Jo "Hess It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Patent Front Page, [S14], "Sliding Seal Parts and Process of Making" should be --A Process of Making Sliding Seal Parts--.
Signed and Sealed this ninth D 3} of December 1975 A ttes t:
RUTH C. MASON Commissioner ofPaIents and Trademarks UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION & PATENT N0. 3,90L ,Lr05
DATED September 9, 1975 INVENTOR(S) Robert A. Russell and Irving :"J. "Hess It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Patent Front Page, [S1 "Sliding Seal Parts and Process of Making" should be --A Process of Making Sliding Seal Par-ts-.
Signed and Scalcd this 8 ninth Day Of December 1975 [SEAL] Attest:
' RUTH C. MASON C. MARSHALL DANN Arresting Offic r (ommissiuner ofParenls and Trademarks

Claims (6)

1. THE PROCESS OF PRODUCING SILIDING SEAL PART MEANS COMPRISING THE STEPS OF ADHERINGLY PLATING DESCRETE CARBON ELEMENTS WITH ALUMINUM, THEN CONSOLIDATING SAID PLATED ELEMENTS INTO SLIDING SEAL PART MEANS BY PRESSURE AND HEAT, WHEREIN THE PLATING IS CARRIED OUT BY ELECTRODEPOSITION FROM AN ETHERAL BATH CONTAINING ANHYDROUS ALUMINUM CHLORIDE AND A METAL HYDRIDE SELECTED FROM THE GROUP CONSISTING OF LITHIUM HYDRIDE AND LITHIUM ALUMINUM HYDRIDE.
2. The process of producing sliding seal part means comprising the steps of adheringly plating discrete carbon elements with aluminum, then consolidating said plated elements into sliding seal part means by pressure and heat, wherein the plating is carried out by electrodeposition from an ethereal bath containing anhydrous aluminum chloride and a metal hydride and wherein the ethereal bath is selected from the group consisting of ethyl ether, ethyl n-butyl ether, anisole, phenetole, diphenyl ether and mixtures of ethyl and butyl ethers.
3. The process of producing sliding metal seal part means as claimed in claim 1 wherein the discrete carbon elements are vitreous carbon particles.
4. The process of producing sliding metal seal part means as claimed in claim 1 wherein the discrete carbon elements are calcined anthracite particles.
5. The process of producing sliding seal part mEans as claimed in claim 2, wherein the discrete carbon elements are vitreous carbon particles.
6. The process of producing sliding seal part means as claimed in claim 2, wherein the discrete carbon elements are calcined anthracite particles.
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985477A (en) * 1975-05-30 1976-10-12 General Motors Corporation Tube core apex seal for rotary combustion engine
US4150998A (en) * 1976-12-09 1979-04-24 General Electric Company Rotary sealant abradable material and method for making
US4240830A (en) * 1978-11-30 1980-12-23 Westinghouse Electric Corp. Method for making sintered metal-coated graphite for high-current collector brushes
US4509906A (en) * 1983-03-31 1985-04-09 Toyo Kogo Co., Ltd. Vane type rotary compressor having a wear resistant resin coating
US4609449A (en) * 1982-03-16 1986-09-02 American Cyanamid Company Apparatus for the production of continuous yarns or tows comprising high strength metal coated fibers
US4836559A (en) * 1987-12-30 1989-06-06 Sundstrand Corporation Seal assembly with meltable metal binder layer
US4936912A (en) * 1988-06-27 1990-06-26 Deere & Company Sintered apex seal material
US5133652A (en) * 1989-11-17 1992-07-28 Matsushita Electric Industrial Co., Ltd. Rotary compressor having an aluminum body cast around a sintered liner
US20070024193A1 (en) * 2005-07-29 2007-02-01 Chul-Hong Kim Composition, an electrode transfer film including the same, a display panel, and a method of forming an electrode
WO2016085596A1 (en) * 2014-11-25 2016-06-02 Baker Hughes Incorporated Method of forming a flexible carbon composite self-lubricating seal
US9714709B2 (en) 2014-11-25 2017-07-25 Baker Hughes Incorporated Functionally graded articles and methods of manufacture
US9726300B2 (en) 2014-11-25 2017-08-08 Baker Hughes Incorporated Self-lubricating flexible carbon composite seal
US9745451B2 (en) 2014-11-17 2017-08-29 Baker Hughes Incorporated Swellable compositions, articles formed therefrom, and methods of manufacture thereof
US9840887B2 (en) 2015-05-13 2017-12-12 Baker Hughes Incorporated Wear-resistant and self-lubricant bore receptacle packoff tool
US9963395B2 (en) 2013-12-11 2018-05-08 Baker Hughes, A Ge Company, Llc Methods of making carbon composites
US9962903B2 (en) 2014-11-13 2018-05-08 Baker Hughes, A Ge Company, Llc Reinforced composites, methods of manufacture, and articles therefrom
US10125274B2 (en) 2016-05-03 2018-11-13 Baker Hughes, A Ge Company, Llc Coatings containing carbon composite fillers and methods of manufacture
US10202310B2 (en) 2014-09-17 2019-02-12 Baker Hughes, A Ge Company, Llc Carbon composites
US10315922B2 (en) 2014-09-29 2019-06-11 Baker Hughes, A Ge Company, Llc Carbon composites and methods of manufacture
US10344559B2 (en) 2016-05-26 2019-07-09 Baker Hughes, A Ge Company, Llc High temperature high pressure seal for downhole chemical injection applications
US10480288B2 (en) 2014-10-15 2019-11-19 Baker Hughes, A Ge Company, Llc Articles containing carbon composites and methods of manufacture
US11097511B2 (en) 2014-11-18 2021-08-24 Baker Hughes, A Ge Company, Llc Methods of forming polymer coatings on metallic substrates

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US3550247A (en) * 1967-02-02 1970-12-29 Courtaulds Ltd Method for producing a metal composite

Patent Citations (1)

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US3550247A (en) * 1967-02-02 1970-12-29 Courtaulds Ltd Method for producing a metal composite

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985477A (en) * 1975-05-30 1976-10-12 General Motors Corporation Tube core apex seal for rotary combustion engine
US4150998A (en) * 1976-12-09 1979-04-24 General Electric Company Rotary sealant abradable material and method for making
US4240830A (en) * 1978-11-30 1980-12-23 Westinghouse Electric Corp. Method for making sintered metal-coated graphite for high-current collector brushes
US4609449A (en) * 1982-03-16 1986-09-02 American Cyanamid Company Apparatus for the production of continuous yarns or tows comprising high strength metal coated fibers
US4509906A (en) * 1983-03-31 1985-04-09 Toyo Kogo Co., Ltd. Vane type rotary compressor having a wear resistant resin coating
US4836559A (en) * 1987-12-30 1989-06-06 Sundstrand Corporation Seal assembly with meltable metal binder layer
US4936912A (en) * 1988-06-27 1990-06-26 Deere & Company Sintered apex seal material
US5133652A (en) * 1989-11-17 1992-07-28 Matsushita Electric Industrial Co., Ltd. Rotary compressor having an aluminum body cast around a sintered liner
US20070024193A1 (en) * 2005-07-29 2007-02-01 Chul-Hong Kim Composition, an electrode transfer film including the same, a display panel, and a method of forming an electrode
US7674403B2 (en) * 2005-07-29 2010-03-09 Samsung Sdi Co., Ltd. Composition, an electrode transfer film including the same, a display panel, and a method of forming an electrode
US9963395B2 (en) 2013-12-11 2018-05-08 Baker Hughes, A Ge Company, Llc Methods of making carbon composites
US10202310B2 (en) 2014-09-17 2019-02-12 Baker Hughes, A Ge Company, Llc Carbon composites
US10501323B2 (en) 2014-09-29 2019-12-10 Baker Hughes, A Ge Company, Llc Carbon composites and methods of manufacture
US10315922B2 (en) 2014-09-29 2019-06-11 Baker Hughes, A Ge Company, Llc Carbon composites and methods of manufacture
US10480288B2 (en) 2014-10-15 2019-11-19 Baker Hughes, A Ge Company, Llc Articles containing carbon composites and methods of manufacture
US11148950B2 (en) 2014-11-13 2021-10-19 Baker Hughes, A Ge Company, Llc Reinforced composites, methods of manufacture, and articles therefrom
US9962903B2 (en) 2014-11-13 2018-05-08 Baker Hughes, A Ge Company, Llc Reinforced composites, methods of manufacture, and articles therefrom
US9745451B2 (en) 2014-11-17 2017-08-29 Baker Hughes Incorporated Swellable compositions, articles formed therefrom, and methods of manufacture thereof
US10119011B2 (en) 2014-11-17 2018-11-06 Baker Hughes, A Ge Company, Llc Swellable compositions, articles formed therefrom, and methods of manufacture thereof
US11097511B2 (en) 2014-11-18 2021-08-24 Baker Hughes, A Ge Company, Llc Methods of forming polymer coatings on metallic substrates
US9726300B2 (en) 2014-11-25 2017-08-08 Baker Hughes Incorporated Self-lubricating flexible carbon composite seal
US10300627B2 (en) 2014-11-25 2019-05-28 Baker Hughes, A Ge Company, Llc Method of forming a flexible carbon composite self-lubricating seal
US9714709B2 (en) 2014-11-25 2017-07-25 Baker Hughes Incorporated Functionally graded articles and methods of manufacture
WO2016085596A1 (en) * 2014-11-25 2016-06-02 Baker Hughes Incorporated Method of forming a flexible carbon composite self-lubricating seal
US9840887B2 (en) 2015-05-13 2017-12-12 Baker Hughes Incorporated Wear-resistant and self-lubricant bore receptacle packoff tool
US10125274B2 (en) 2016-05-03 2018-11-13 Baker Hughes, A Ge Company, Llc Coatings containing carbon composite fillers and methods of manufacture
US10344559B2 (en) 2016-05-26 2019-07-09 Baker Hughes, A Ge Company, Llc High temperature high pressure seal for downhole chemical injection applications

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