US3556255A - Electrostatic application of solid lubricants - Google Patents

Electrostatic application of solid lubricants Download PDF

Info

Publication number
US3556255A
US3556255A US737475A US3556255DA US3556255A US 3556255 A US3556255 A US 3556255A US 737475 A US737475 A US 737475A US 3556255D A US3556255D A US 3556255DA US 3556255 A US3556255 A US 3556255A
Authority
US
United States
Prior art keywords
tool
particles
forge
electrostatic
solid lubricant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US737475A
Inventor
George Franklin Lomax Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sperry Corp
Original Assignee
Sperry Rand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Application granted granted Critical
Publication of US3556255A publication Critical patent/US3556255A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/041—Coatings or solid lubricants, e.g. antiseize layers or pastes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J3/00—Lubricating during forging or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1038—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality
    • B23Q11/1061—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality using cutting liquids with specially selected composition or state of aggregation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N15/00—Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions
    • F16N15/02—Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions with graphite or graphite-containing compositions

Definitions

  • This disclosure describes an apparatus for applying a solid lubricant to the working surface of forge tools.
  • Gas pressure forces the particles through an electrostatic charging chamber wherein the particles receive an electrostatic charge.
  • the charged particles are emitted from a nozzle onto the working surface of the forge tool being lubricated. Because the working surface is formed of a material of opposite electrostatic charge, the charged particles adhere to the surface.
  • An electrostatic coil may be mounted inside of the forge tool to oppositely charge the tool and aid in the application of the lubricant. The electrostatic coil also maintains an attractive effect between the charged particles and the tool when the forge tool is heated to a point where its surface loses its ferromagnetic properties.
  • an apparatus for applying dry lubricant particles to forge tools is provided.
  • Particles of a dry lubricant, such as graphite are forced through an electrostatic charging means, In the electrostatic charging means the particles receive an electrostatic charge; thereafter, the particles are forced through a spray nozzle.
  • the spray nozzle is directed toward the tool whose surface is to be coated with the lubricant.
  • an electrostatic charging chamber is coupled through a supply line to a source of solid lubricant particles. And, the solid lubricant particles are forced through the supply line by gas pressure, for example.
  • an oppositely charged (to the charge of the particles) means such as an electrostatic coil is mounted inside of the working surface of the forge tool to aid in the application of the particles to the work surface of the forge tool.
  • the electrostatic coil aids in retaining the charged particles on the surface of the tool when the tool is in use.
  • an uncomplicated apparatus for coating a forge tool with solid lubricant particles is provided.
  • the particles are charged by an electrostatic source and sprayed through a spray nozzle onto the surface of the tool. Because oil is not used as an adhesion agent, there are no combustion products generated when the particles impinge on the surface of the tool even though the tool is hot. In addition, because water is not used as an adhesion agent. sputtering does not occur when the particles impinge on the surface of the tool. Hence, none of the detrimental effects of the prior art apparatus for coating a tool with a dry lubricant result from the use of the apparatus of the invention.
  • FIG. I is a pictorial diagram illustrating the invention.
  • FIG. 2 is a cross-sectional diagram of a forge tool illustrating an electrostatic coil mounted in the tool.
  • FIG. I is a schematic diagram illustrating the invention and comprises: a source of solid lubricant particles 11; an electrostatic charging chamber 13; and a nozzle 15.
  • the source of solid lubricant particles 11 is connected to a gas supply 18 by a line [7.
  • the source of solid lubricant particles 11 is also connected to the electrostatic charging chamber 13 by a.solid lubricant particle supply line 19.
  • the electrostatic charging chamber 13 is connected to a potential supply by a line 21.
  • the nozzle is located on the opposite side of the electrostatic charging chamber from the solid lubricant particle supply line 19. Hence, the particles pass directly through the chamber.
  • Located in front of the discharge end of the nozzle 15 is a tool 23 whose surface is to be coated by the solid lubricant particles.
  • the gas supply supplies a gas that flows through the solid lubricant particle container 11, entrains or entraps the particles, and carries the particles out the solid lubricant particle supply line 19. These particles then pass into the electrostatic charging chamber 13 which induces an electrostatic charge.
  • the charged particles which are still under pressure, are sprayed by the nozzle 15 onto the surface of the forge tool 23.
  • the nozzle provides a direction of flow and a particle velocity sufficiently high to assure a lubricant stream that will cover the intended tool target.
  • the target tool include means for inducing an electrostatic charge of the opposite polarity to the charge of the particles. This opposite charge insures that the particles are captured by the tool and held.
  • the interaction of the oppositely charged electrostatic fields permits unidirectional application of the lubricant with wraparound uniform thickness of the solid particle deposits. That is, the dual charges provide for uniform thickness of lubricant without the target (tool) having to be revolved or moved in front of the nozzle.
  • FIG. 2 illustrates an apparatus for generating an electrostatic charge inside of a tool target. Illustrated in FIG. 2 is an outer tool shell 31 having a cooling water shell 33 mounted immediately adjacent to the inner side of the tool shell 31. It will be appreciated by those skilled in the art that cooling water jackets are typical in hot forge tools. Mounted inside of the cooling water jacket 33 is an electrostatic coil 35 wound around a coil support 37. The built-in cooling water jacket, in addition to its usual beneficial effects, also thermally protects the coil. Iiy applying a current to the electrostatic coil 35 an electrostatic charge is developed on the surface of the tool. If the tool charge is opposite to the charge of the particles, the particles are attracted to the tool and the above-mentioned wraparound effect occurs.
  • the invention provides an apparatus for applying solid lubricant particles to a forge tool.
  • the particles may be graphite, plastic or any other solid lubricant particles that will accept an electrostatic charge.
  • the particles are charged in a charging chamber and directed by a nozzle onto the surface of the tool.
  • an electrostatic charge of opposite polarity is created on the tool. This charge attracts the particles so that they uniformly adhere to the surface of the tool.
  • the tool charge aids in the application ofthe charged particles to the tool surface, it is not essential to the invention.
  • the tool charge creating means can be removed from the tool after the particles have adhered to the surface of the tool, it does not have to be removed. In fact.
  • the charging means not be removed because the exterior surface of the tool can rise to temperatures wherein the tools ferromagnetic properties are reduced. If this reduction occurs, the particles tend to drop away from the tool. However, if the coil is maintained in the tool and is maintained energized, the tool remains charged so that the particles remain adhered to the tool. Hence, in certain environments it is preferable to maintain an energized electrostatic coil or other charge creating means in the tool while the tool is being used in a forge operation.
  • the invention finds its greatest use in coating hot forge tools with lubricant particles When they are hot. it can also be used in other environments. For example. the invention can be used to coat cold forge tools with lubricant particles. Also, the invention can be used to coat hot forge tools when they are cold.
  • Apparatus for applying dry, solid lubricant particles onto the work surface ofa forge tool comprising:
  • particle movement means coupled to said source of dry.
  • an electrostatic charging chamber connected to said source of dry, solid lubricant particles so as to receive said particles
  • said electrostatic charging chamber adapted to apply an electrostatic charge to the particles received by said chamber from said source ofdry, solid lubricant particles;
  • a nozzle connected to the output of said electrostatic charging chamber for dispensing said charged particles onto the work surface ofa forge tool
  • Apparatus for applying dry, solid lubricant particles to the work surface of a forge tool as claimed in claim 1 wherein said means for applying a charge to the work surface of said tool comprises an electrostatic coil mounted in said tool.

Abstract

This disclosure describes an apparatus for applying a solid lubricant to the working surface of forge tools. Gas pressure forces the particles through an electrostatic charging chamber wherein the particles receive an electrostatic charge. The charged particles are emitted from a nozzle onto the working surface of the forge tool being lubricated. Because the working surface is formed of a material of opposite electrostatic charge, the charged particles adhere to the surface. An electrostatic coil may be mounted inside of the forge tool to oppositely charge the tool and aid in the application of the lubricant. The electrostatic coil also maintains an attractive effect between the charged particles and the tool when the forge tool is heated to a point where its surface loses its ferromagnetic properties.

Description

United States Patent a corporation of Delaware ELECTROSTATIC APPLICATION OF SOLID LUBRICANTS 4 Claims, 2 Drawing Figs.
U.S. Cl 184/1, 117/17, 118/62, 184/6 Int. Cl ..Fl6n 15/02, BOSb 5/02 Field of Search 184/1 E, 6;
Primary Examiner-Manuel A. Antonakas AlI0rrly-Gl'lff1n, Branigan, Truex, Seemar & Kindness ABSTRACT: This disclosure describes an apparatus for applying a solid lubricant to the working surface of forge tools. Gas pressure forces the particles through an electrostatic charging chamber wherein the particles receive an electrostatic charge. The charged particles are emitted from a nozzle onto the working surface of the forge tool being lubricated. Because the working surface is formed of a material of opposite electrostatic charge, the charged particles adhere to the surface. An electrostatic coil may be mounted inside of the forge tool to oppositely charge the tool and aid in the application of the lubricant. The electrostatic coil also maintains an attractive effect between the charged particles and the tool when the forge tool is heated to a point where its surface loses its ferromagnetic properties.
TO POTENTIAL SUPPLY I l9 23 i l! CHARGED PARTICLES sou D LUBRICANT s PARTICLES n ha PATENTEDJANIQIBYI I 35561255 T0 POTENTIAL SUPPLY CHARGED PARTICLES souo LUBRICANT S PARTICLES INVENTOR Ggprge F. Lomox,dn
. m fal ATTORNEYS ELECTROSTATIC APPLICATION OF SOLID LUBRICANTS BACKGROUND OF THE INVENTION Most forging operations, whether hot or cold. require that the forge tools be coated with a lubricant. In the past. the hot forge industry practice has been to coat the forge tools with a compound that basically consists of a graphite powder suspended in a hydrocarbon oil base liquid carrier. Upon application to hot tools, the liquid carrier provides an adhesive quality that aids in coating the surface of the tool with the suspended graphite. Although the oil burns upon contact with the hot surface, the cokelike residue is sufficiently impregnated with the graphite powder to provide lubrication during the following forgingoperations.
While the foregoing practice has found widespread use. it has not been entirely satisfactory. Specifically, the combustion of the oil when it impinges on the hot tools produces a sooty smoke. The smoke contains graphite particles that are released from the compound during the combustion process. These particles of combustion permeate the atmosphere in the forge area and constitute a health hazard to operating person nel. In addition, the products of combustion contaminate the surrounding equipment, especially electrical apparatus such as hydraulic pump drive motors.
More recently, attempts have been made to use water as the liquid carrier so as to reduce the health hazard and the contamination of the surrounding equipment. While this ap proach shows great promise in reducing the contamination of the forge area atmosphere, the sudden vaporization of the water upon contact with the hot tool surfaces releases a portion of the entrained graphite particles. Hence, while combustion products are eliminated, the atmosphere is still contaminated by graphite particles.
Therefore, it is an object of this invention to provide a new and improved apparatus for applying a dry lubricant to forge tools that does not contaminate the atmosphere and does not constitute a health hazard to operating personnel.
It is a further object of this invention to provide a new and improved apparatus for applying a solid'particle dry lubricant to forge tools that does not generate combustion products and does not release sufficient particles to contaminate the air and create a health hazard.
SUMMARY OF THE INVENTION In accordance with a principle of this invention an apparatus for applying dry lubricant particles to forge tools is provided. Particles of a dry lubricant, such as graphite, are forced through an electrostatic charging means, In the electrostatic charging means the particles receive an electrostatic charge; thereafter, the particles are forced through a spray nozzle. The spray nozzle is directed toward the tool whose surface is to be coated with the lubricant.
In accordance with a further principle of the invention an electrostatic charging chamber is coupled through a supply line to a source of solid lubricant particles. And, the solid lubricant particles are forced through the supply line by gas pressure, for example.
In accordance with a further principle of the invention an oppositely charged (to the charge of the particles) means such as an electrostatic coil is mounted inside of the working surface of the forge tool to aid in the application of the particles to the work surface of the forge tool. In addition, the electrostatic coil aids in retaining the charged particles on the surface of the tool when the tool is in use.
From the foregoing description of the invention it will be appreciated that an uncomplicated apparatus for coating a forge tool with solid lubricant particles is provided. The particles are charged by an electrostatic source and sprayed through a spray nozzle onto the surface of the tool. Because oil is not used as an adhesion agent, there are no combustion products generated when the particles impinge on the surface of the tool even though the tool is hot. In addition, because water is not used as an adhesion agent. sputtering does not occur when the particles impinge on the surface of the tool. Hence, none of the detrimental effects of the prior art apparatus for coating a tool with a dry lubricant result from the use of the apparatus of the invention. That is, because a carrior material is not necessary, the detrimental effects of the prior art are eliminated. In addition, when the tool is oppo'sitm ly charged by a coil or other means mounted in the tool, a wraparound effect occurs. This wraparound effect results in a uniform coating with little or no blowby or particle drift.
BRIEF DESCRIPTION OF THE DRAWINGS The foregoing objects and many of the attendant advantages of this invention will become more readily appreciated as the same becomes better understood by reference to the following detailed description when taken in conjunction with the accompanying'drawings wherein:
FIG. I is a pictorial diagram illustrating the invention: and
FIG. 2 is a cross-sectional diagram ofa forge tool illustrating an electrostatic coil mounted in the tool.
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. I is a schematic diagram illustrating the invention and comprises: a source of solid lubricant particles 11; an electrostatic charging chamber 13; and a nozzle 15. The source of solid lubricant particles 11 is connected to a gas supply 18 by a line [7. The source of solid lubricant particles 11 is also connected to the electrostatic charging chamber 13 by a.solid lubricant particle supply line 19. The electrostatic charging chamber 13 is connected to a potential supply by a line 21. The nozzle is located on the opposite side of the electrostatic charging chamber from the solid lubricant particle supply line 19. Hence, the particles pass directly through the chamber. Located in front of the discharge end of the nozzle 15 is a tool 23 whose surface is to be coated by the solid lubricant particles.
In operation. the gas supply supplies a gas that flows through the solid lubricant particle container 11, entrains or entraps the particles, and carries the particles out the solid lubricant particle supply line 19. These particles then pass into the electrostatic charging chamber 13 which induces an electrostatic charge.
The charged particles, which are still under pressure, are sprayed by the nozzle 15 onto the surface of the forge tool 23. The nozzle provides a direction of flow and a particle velocity sufficiently high to assure a lubricant stream that will cover the intended tool target. While it is not essential to the basic operation of the invention, it is preferred that the target tool include means for inducing an electrostatic charge of the opposite polarity to the charge of the particles. This opposite charge insures that the particles are captured by the tool and held. In addition, the interaction of the oppositely charged electrostatic fields permits unidirectional application of the lubricant with wraparound uniform thickness of the solid particle deposits. That is, the dual charges provide for uniform thickness of lubricant without the target (tool) having to be revolved or moved in front of the nozzle.
FIG. 2 illustrates an apparatus for generating an electrostatic charge inside of a tool target. Illustrated in FIG. 2 is an outer tool shell 31 having a cooling water shell 33 mounted immediately adjacent to the inner side of the tool shell 31. It will be appreciated by those skilled in the art that cooling water jackets are typical in hot forge tools. Mounted inside of the cooling water jacket 33 is an electrostatic coil 35 wound around a coil support 37. The built-in cooling water jacket, in addition to its usual beneficial effects, also thermally protects the coil. Iiy applying a current to the electrostatic coil 35 an electrostatic charge is developed on the surface of the tool. If the tool charge is opposite to the charge of the particles, the particles are attracted to the tool and the above-mentioned wraparound effect occurs.
It will be appreciated from the foregoing that the invention provides an apparatus for applying solid lubricant particles to a forge tool. The particles may be graphite, plastic or any other solid lubricant particles that will accept an electrostatic charge. The particles are charged in a charging chamber and directed by a nozzle onto the surface of the tool. Preferably, an electrostatic charge of opposite polarity is created on the tool. This charge attracts the particles so that they uniformly adhere to the surface of the tool. While the tool charge aids in the application ofthe charged particles to the tool surface, it is not essential to the invention. In addition, while the tool charge creating means can be removed from the tool after the particles have adhered to the surface of the tool, it does not have to be removed. In fact. ifthe tool is to be utilized in a hot forging operation, it is preferred that the charging means not be removed because the exterior surface of the tool can rise to temperatures wherein the tools ferromagnetic properties are reduced. If this reduction occurs, the particles tend to drop away from the tool. However, if the coil is maintained in the tool and is maintained energized, the tool remains charged so that the particles remain adhered to the tool. Hence, in certain environments it is preferable to maintain an energized electrostatic coil or other charge creating means in the tool while the tool is being used in a forge operation.
It will be appreciated by those skilled in the art and others that the foregoing has described a preferred embodiment of the invention; however, other embodiments fall within the scope of the invention. For example, other apparatus than a coil may be utilized inside of the tool to provide a charge that will attract the charged particles. In addition, while the invention has been described as using a gas to provide the flow of particles into the electrostatic charging chamber, it will be appreciated that various gases can be used; the only limitation on the gas is that it must have a low moisture content. For example, dry air can be utilized. Alternatively, nitrogen or other inert gases can be used. Moreover, other means of conveyance such as centrifugal impellers which do not require gas to impart velocity may be used.
It will be further appreciated that, while the invention finds its greatest use in coating hot forge tools with lubricant particles When they are hot. it can also be used in other environments. For example. the invention can be used to coat cold forge tools with lubricant particles. Also, the invention can be used to coat hot forge tools when they are cold.
I claim:
1. Apparatus for applying dry, solid lubricant particles onto the work surface ofa forge tool comprising:
a source of dry, solid lubricant particles:
particle movement means coupled to said source of dry.
solid lubricant particles for moving said particles;
an electrostatic charging chamber connected to said source of dry, solid lubricant particles so as to receive said particles;
said electrostatic charging chamber adapted to apply an electrostatic charge to the particles received by said chamber from said source ofdry, solid lubricant particles;
a nozzle connected to the output of said electrostatic charging chamber for dispensing said charged particles onto the work surface ofa forge tool; and,
means mounted in said forge tool for applying an electrostatic charge to the work surface of said forge tool opposite in polarity to the charge applied to said particles by said electrostatic charging chamber.
2. Apparatus for applying dry, solid lubricant particles to the work surface of a forge tool as claimed in claim 1 wherein said means for applying a charge to the work surface of said tool comprises an electrostatic coil mounted in said tool.
3. Apparatus for applying dry, solid lubricant particles onto the work surface of a forge tool as claimed in claim 2 wherein said particle movement means comprises a source of dry gas under pressure.
4. Apparatus for applying dry, solid lubricant particles onto the work surface of a forge tool as claimed in claim 3 where said particles are graphite.

Claims (4)

1. Apparatus for applying dry, solid lubricant particles onto the work surface of a forge tool comprising: a source of dry, solid lubricant particles; particle movement means coupled to said source of dry, solid lubricant particles for moving said particles; an electrostatic charging chamber connected to said source of dry, solid lubricant particles so as to receive said particles; said electrostatic charging chamber adapted to apply an electrostatic charge to the particles received by said chamber from said source of dry, solid lubricant particles; a nozzle connected to the output of said electrostatic charging chamber for dispensing said charged particles onto the work surface of a forge tool; and, means mounted in said forge tool for applying an electrostatic charge to the work surface of said forge tool opposite in polarity to the charge applied to said particles by said electrostatic charging chamber.
2. Apparatus for applying dry, solid lubricant particles to the work surface of a forge tool as claimed in claim 1 wherein said means for applying a charge to the work surface of said tool comprises an electrostatic coil mounted in said tool.
3. Apparatus for applying dry, solid lubricant particles onto the work surface of a forge tool as claimed in claim 2 wherein said particle movement means comprises a source of dry gas under pressure.
4. Apparatus for applying dry, solid lubricant particles onto the work surface of a forge tool as claimed in claim 3 where said particles are graphite.
US737475A 1968-06-17 1968-06-17 Electrostatic application of solid lubricants Expired - Lifetime US3556255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73747568A 1968-06-17 1968-06-17

Publications (1)

Publication Number Publication Date
US3556255A true US3556255A (en) 1971-01-19

Family

ID=24964077

Family Applications (1)

Application Number Title Priority Date Filing Date
US737475A Expired - Lifetime US3556255A (en) 1968-06-17 1968-06-17 Electrostatic application of solid lubricants

Country Status (1)

Country Link
US (1) US3556255A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432408A1 (en) * 1989-11-15 1991-06-19 Lonza A.G. Device for application of a lubricant suspension containing graphite
EP0464585A2 (en) * 1990-06-26 1992-01-08 DAIDO MACHINERY, Ltd. A method for forming a lubricant coat on the surface of a material to be forged and a forging device provided with a lubricant coat forming member
WO1994022589A1 (en) * 1993-04-07 1994-10-13 Nordson Corporation Method and apparatus for coating three dimensional articles
EP0698435A1 (en) * 1994-08-24 1996-02-28 Quebec Metal Powders Ltd. Powder metallurgy apparatus and process using electrostatic die wall lubrication
US5682591A (en) * 1994-08-24 1997-10-28 Quebec Metal Powders Limited Powder metallurgy apparatus and process using electrostatic die wall lubrication
US5741558A (en) * 1993-04-07 1998-04-21 Nordson Corporation Method and apparatus for coating three dimensional articles
US5817373A (en) * 1996-12-12 1998-10-06 Micron Display Technology, Inc. Dry dispense of particles for microstructure fabrication
WO2000033989A1 (en) * 1998-12-10 2000-06-15 Honda Of America Mfg., Inc. Application of dry lubricant to forming dies and forming dies that operate with high force
US6330818B1 (en) 1998-12-17 2001-12-18 Materials And Manufacturing Technologies Solutions Company Lubrication system for metalforming
US6355208B1 (en) * 1999-10-29 2002-03-12 Kawasaki Steel Corporation Die lubricant and iron-based powder mixture for warm compaction with die lubrication, and processes for producing high-density iron-based green and sintered compacts
EP1186361A2 (en) * 2000-09-07 2002-03-13 Gesellschaft für Warmumformung und Sondermaschinen mbH & Co. KG Method and device for lubricating forming tools, in particular hot forging tools
US6780491B1 (en) 1996-12-12 2004-08-24 Micron Technology, Inc. Microstructures including hydrophilic particles
US20060013914A1 (en) * 2001-12-19 2006-01-19 Kikusui Seisakusho Ltd. Rotary powder compression molding machine
DE102006024350B3 (en) * 2006-05-24 2007-11-22 Ab Skf Method e.g. for lubricating and cooling bearing arrangement, involves having lubricant gaseous medium with excess pressure fed via pipe to depository of storage arrangement
WO2008071355A1 (en) * 2006-12-11 2008-06-19 Rivoira S.P.A. Lubricating system and method for a press-forging die
US20140373592A1 (en) * 2011-12-29 2014-12-25 Saint Jean Industries Method of dressing a forge die in the implementation of parts obtained by two successive operations of foundry casting followed by forging
CN111014533A (en) * 2019-12-23 2020-04-17 重庆市桂生机械制造有限公司 Induction type automatic ink-jet device
WO2020177504A1 (en) * 2019-03-05 2020-09-10 青岛理工大学 Electrostatic nozzle and controllable jet minimal quantity lubrication grinding system
US11400507B2 (en) * 2016-04-22 2022-08-02 Cosma Engineering Europe Gmbh Method for increasing the plastic deformability of a workpiece using an absorption agent

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323934A (en) * 1962-08-07 1967-06-06 M E S Sa De Machines Electrost Electrostatic coating process and apparatus
US3435913A (en) * 1965-07-12 1969-04-01 George J Driver Jr High-speed bearing lubricator
US3453134A (en) * 1966-03-03 1969-07-01 Banister Corp Electrostatic pipe coating method and apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323934A (en) * 1962-08-07 1967-06-06 M E S Sa De Machines Electrost Electrostatic coating process and apparatus
US3435913A (en) * 1965-07-12 1969-04-01 George J Driver Jr High-speed bearing lubricator
US3453134A (en) * 1966-03-03 1969-07-01 Banister Corp Electrostatic pipe coating method and apparatus

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432408A1 (en) * 1989-11-15 1991-06-19 Lonza A.G. Device for application of a lubricant suspension containing graphite
EP0464585A2 (en) * 1990-06-26 1992-01-08 DAIDO MACHINERY, Ltd. A method for forming a lubricant coat on the surface of a material to be forged and a forging device provided with a lubricant coat forming member
EP0464585A3 (en) * 1990-06-26 1992-03-11 Daido Machinery, Ltd. A method for forming a lubricant coat on the surface of a material to be forged and a forging device provided with a lubricant coat forming member
US5741558A (en) * 1993-04-07 1998-04-21 Nordson Corporation Method and apparatus for coating three dimensional articles
WO1994022589A1 (en) * 1993-04-07 1994-10-13 Nordson Corporation Method and apparatus for coating three dimensional articles
US5682591A (en) * 1994-08-24 1997-10-28 Quebec Metal Powders Limited Powder metallurgy apparatus and process using electrostatic die wall lubrication
JP3383731B2 (en) 1994-08-24 2003-03-04 ケベック メタル パウダーズ リミテッド Powder metallurgy apparatus and method using electrostatic die wall lubrication
JPH08100203A (en) * 1994-08-24 1996-04-16 Quebec Metal Powders Ltd Apparatus and method for powder metallurgy using electrostatic die wall lubrication
EP0698435A1 (en) * 1994-08-24 1996-02-28 Quebec Metal Powders Ltd. Powder metallurgy apparatus and process using electrostatic die wall lubrication
US5817373A (en) * 1996-12-12 1998-10-06 Micron Display Technology, Inc. Dry dispense of particles for microstructure fabrication
US6110394A (en) * 1996-12-12 2000-08-29 Micron Technology, Inc. Dry dispense of particles to form a fabrication mask
US6780491B1 (en) 1996-12-12 2004-08-24 Micron Technology, Inc. Microstructures including hydrophilic particles
WO2000033989A1 (en) * 1998-12-10 2000-06-15 Honda Of America Mfg., Inc. Application of dry lubricant to forming dies and forming dies that operate with high force
US6330818B1 (en) 1998-12-17 2001-12-18 Materials And Manufacturing Technologies Solutions Company Lubrication system for metalforming
US6355208B1 (en) * 1999-10-29 2002-03-12 Kawasaki Steel Corporation Die lubricant and iron-based powder mixture for warm compaction with die lubrication, and processes for producing high-density iron-based green and sintered compacts
EP1186361A3 (en) * 2000-09-07 2003-05-14 Advanced Forging Technologies GmbH Method and device for lubricating forming tools, in particular hot forging tools
EP1186361A2 (en) * 2000-09-07 2002-03-13 Gesellschaft für Warmumformung und Sondermaschinen mbH & Co. KG Method and device for lubricating forming tools, in particular hot forging tools
US20060013914A1 (en) * 2001-12-19 2006-01-19 Kikusui Seisakusho Ltd. Rotary powder compression molding machine
DE102006024350B3 (en) * 2006-05-24 2007-11-22 Ab Skf Method e.g. for lubricating and cooling bearing arrangement, involves having lubricant gaseous medium with excess pressure fed via pipe to depository of storage arrangement
WO2008071355A1 (en) * 2006-12-11 2008-06-19 Rivoira S.P.A. Lubricating system and method for a press-forging die
US20140373592A1 (en) * 2011-12-29 2014-12-25 Saint Jean Industries Method of dressing a forge die in the implementation of parts obtained by two successive operations of foundry casting followed by forging
US10369619B2 (en) * 2011-12-29 2019-08-06 Saint Jean Industries Method of dressing a forge die in the implementation of parts obtained by two successive operations of foundry casting followed by forging
US11400507B2 (en) * 2016-04-22 2022-08-02 Cosma Engineering Europe Gmbh Method for increasing the plastic deformability of a workpiece using an absorption agent
WO2020177504A1 (en) * 2019-03-05 2020-09-10 青岛理工大学 Electrostatic nozzle and controllable jet minimal quantity lubrication grinding system
CN111014533A (en) * 2019-12-23 2020-04-17 重庆市桂生机械制造有限公司 Induction type automatic ink-jet device
CN111014533B (en) * 2019-12-23 2021-10-22 重庆市桂生机械制造有限公司 Induction type automatic ink-jet device

Similar Documents

Publication Publication Date Title
US3556255A (en) Electrostatic application of solid lubricants
US5820938A (en) Coating parent bore metal of engine blocks
US3632368A (en) Lubricant coated bearing and method
CA2384551C (en) Lubrication system for metalforming
CA2325297A1 (en) Die wall lubrication method and apparatus
JPH0410384B2 (en)
CA1088740A (en) Tribo electrogasdynamic powder charging apparatus
SE8305907L (en) PROCEDURE FOR MANUFACTURING METAL POWDER WITH VERY FINE PARTICLE SIZE
US5032419A (en) Method of electrostatically depositing smaller particles first
ES2058217T3 (en) A PROCEDURE FOR REDUCING ENVIRONMENTAL INFLUENCES IN A WORKPIECE POWDER COATING AND IN A POWDER COATING INSTALLATION.
FR2450638A1 (en) APPARATUS AND METHOD FOR APPLYING A COATING ON AN OBJECT ELECTROGAZDYNAMICALLY
US4718920A (en) Method and apparatus for smoke suppression
CN107130204A (en) A kind of wear-resistant coating cylinder jacket and its preparation technology
US3485753A (en) Hot extrusion of metals and lubricant therefor
ATE226113T1 (en) ELECTROSTATIC COATING OF SMALL FALLING OBJECTS
US3199929A (en) Sliding surface protection
JPH03162588A (en) Formation of coating film of solid lubricant
FR2238890A1 (en) Electrostatic deposition of lubricants for metalworking - continuous coating of aluminium strip with paraffin wax before presswork
JPH0111322Y2 (en)
JPS5727159A (en) Method of electrostatic powder coating
GB1069423A (en) Method and apparatus for electrostatically coating articles with powder
JPH01118353A (en) Injection sleeve lubricating method in casting machine
JP2002224783A (en) Coating method of powder releasing lubricant
JP2015187297A (en) Deposition method of carbon film
JPS5249252A (en) Method for coting powder coating compounds