CA2030109A1 - Device for applying graphitic lubricant suspensions - Google Patents

Device for applying graphitic lubricant suspensions

Info

Publication number
CA2030109A1
CA2030109A1 CA002030109A CA2030109A CA2030109A1 CA 2030109 A1 CA2030109 A1 CA 2030109A1 CA 002030109 A CA002030109 A CA 002030109A CA 2030109 A CA2030109 A CA 2030109A CA 2030109 A1 CA2030109 A1 CA 2030109A1
Authority
CA
Canada
Prior art keywords
dispensing
spray
graphitic lubricant
dispensing means
workpiece
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.)
Abandoned
Application number
CA002030109A
Other languages
French (fr)
Inventor
Rene Schmitter
Marco Lanini
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.)
Imerys Graphite and Carbon Switzerland SA
Original Assignee
Lonza AG
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 Lonza AG filed Critical Lonza AG
Publication of CA2030109A1 publication Critical patent/CA2030109A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q11/00Accessories 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
    • B23Q11/10Arrangements for cooling or lubricating tools or work
    • B23Q11/1084Arrangements for cooling or lubricating tools or work specially adapted for being fitted to different kinds of machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/658Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits the spraying apparatus or its outlet axis being perpendicular to the flow conduit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06Lubricating, cooling or heating rolls
    • B21B27/10Lubricating, cooling or heating rolls externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203Cooling
    • B21B45/0209Cooling devices, e.g. using gaseous coolants
    • B21B45/0215Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233Spray nozzles, Nozzle headers; Spray systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239Lubricating
    • B21B45/0245Lubricating devices
    • B21B45/0248Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N15/00Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions
    • F16N15/02Lubrication 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spray Control Apparatus (AREA)
  • Lubricants (AREA)
  • Coating Apparatus (AREA)
  • Forging (AREA)

Abstract

DEVICE FOR APPLYING GRAPHITIC LUBRICANT SUSPENSIONS

ABSTRACT OF THE DISCLOSURE

A device is disclosed for applying graphitic lubricant suspensions onto tools or work pieces in the hot-forming of metals. This device consists of a suitable dispenser which contains one or more spraying units, and a mounting for supporting the dispenser and spray unit(s) in fixed relation to the tool or workpiece.

Description

20301~9 The present invention concerns a new device for applying graphitic lubricant suspensions onto tools or workpieces when hot-forming metals, in particular, when hot-rolling sheet metal, sections or pipes.
In methods used to date, lubrication was either completely omitted or oil emulsions were applied to the hot workpieces and tools.
If no lubrication takes place, there is significant wear on the tools, which may be for example, rollers. This results in a high rate of tool replacement and associated expenditures such as lost productivity and unscheduled delays.
The primary disadvantage of oil lubrication is that the oil burns on the hot tools which leads to undesirable and noxious smoke emissions. Oil is, moreover, substantially inferior to graphite with respect to lubricating properties such as decreased viscosity in relation to increased temperature. Oil emulsions have thus far been applied in a more or less uncontrolled manner with conventional applicator systems such as nozzles, often together with the application of cooling water.
It is therefore an object of the present invention to provide a device which avoids the above noted disadvantages in the hot-forming of metals.
The present invention affords a device for the controlled application of a graphitic lubricant suspension to either the tool or workpiece. The device further permits a controlled rate of application as well as the direction of application.
The device for applying graphitic lubricant suspensions onto tools or workpieces in the hot forming of metals according to the present invention thus comprises a spray means for spraying a graphitic lubricant suspension onto said tool or said workpiece; dispensing means for dispensing the graphitic lubricant suspension to said spray means, said spray means being fixably adapted to said 20301~9 dispensing means; and mounting means for supporting said dispensing means and said spray means in fixed relation to said tool or said workpiece.
The spraying units may be controlled, either separately or collectively, by a controller unit so as to obtain optimum utilization of the graphitic lubricant. In addition, the spraying units may be mounted in such a way as to permit control of the direction of spray. By this means, the point of application of the graphitic lubricant lo suspension on the tool or workpiece may be controlled for optimized utilization of the graphitic lubricant suspension.
Embodiments of the invention will be described in more detail below with reference to the accompanying drawings which shows a device for the controlled application of graphitic lubricants.
In the drawings:
Figure 1 schematically shows an example of a dispensing unit according to one embodiment of the invention;
Figure 2 schematically shows an embodiment according to the invention incorporating several dispensing units;
Figure 3 shows a front and a side view of the embodiment shown in Figure 2;
Figure 4 shows an embodiment of a spray head in cross section; and Figure 5 shows a second embodiment of a spray head in cross section.
Referring now to the drawings, Figure 1 shows an embodiment of the invention which comprises three spray heads 2 mounted on a delivery dispensing unit 1, which is in turn disposed in support brackets 3. The dispensing unit 1 has a hollow shape which may be cylindrical and narrowed for mounting at the support brackets 3.

2030~0~

The spray heads 2 are connected to the dispensing unit 1 by threaded connection or other suitable means so as to be leak-proof.
In the device according to the present invention, spray heads 2, such as those described in more detail in DE-PS 27 24 931, EP-A 39 839 or in EP-PS 131 120, may for example be used.
The number of spray heads 2 disposed on the dispensing unit 1 may be varied according to the respective applications of the device, such as shown in Figure 2 wherein the dispensing units 1 are mounted in a roll stand 12 which is, in turn, connected with a control and distributor unit 6 and a high-pressure filter unit 7.
Graphitic lubricant suspensions such as those described in EP-A 240 825 may be used advantageously in the device according to the invention.
An arrangement such as shown in Figure 2 can, for example, be used for rolling sheet metal having a width of approximately 0.5 m to 2 m. In this two-roller example, three dispensing units 1 are used per roller, whereby the two outer dispensing units la, each comprise one spray head 2, and the middle dispensing unit lb comprises three spray heads 2.
Figure 3 shows an alternate view of Figure 2 consisting of a middle dispensing unit lb, with three spray heads 2, outer dispensing units la supports 3, upper and lower rollers 13, and a sheet metal workpiece 5.
Dispensing unit 1 can contain one or more chambers. If the dispensing unit 1 consists of one chamber, as shown in Figure 1, then all the spray heads 2 are uniformly supplied with the graphitic lubricant suspension.
As shown in Figure 2, dispensing unit 1 and spray heads 2 are fed with the graphitic lubricant suspension from a tank (not shown), which contains the graphitic lubricant suspension, via the high-pressure filter means 7 2n3nl~s and the control and distributor unit 6 provided with a programmable controller. In this case, the feed pressure may range between 20 and 100 bar. The high-pressure filter means advantageously includes a commercial piston pump to which preferably a continuously working rotary filter of the type, for example, as detailed in DE-PS 28 23 092, is connected. It is the function of the high-pressure filter means 7 to remove coarse particles and other extraneous materials from the graphitic suspension.
The programmable controller and distributor unit 6 essentially consists of a commercial programmable controller provided with conventional controls and measuring instruments, the function of which is to convey the lubricant suspension first to the dispensing units 1 and then to the individual spray heads 2 in correct amounts, in a timely manner, and with the desired pressure.
The release of pressure and rinsing of the system is also regulated via the control and distributor unit 6.
It is, furthermore, advantageous to fasten the dispensing unit 1 in a suitable mounting support 3 in such a way that it is fixed, or can be pivoted about the longitudinal axis 4 of the dispenser unit 1, and is adapted to be lockable at predetermined angles about the longitudinal axis 4. It is also desirable to construct the mounting supports 3 in such a way that they are movable along the longitudinal axis 4 of the dispenser. It then becomes possible to exactly align the spray heads 2, mounted on the dispensing unit 1, with the tool or working surface to be sprayed. The rotary motion can be motor-driven or take place via a conventional control mechanism.
The above described embodiment of the inventionis, in particular, suitable for spraying slabs when rolling - sheet metal, for spraying section rollers when rolling special sections such as rails, for spraying rollers when rolling sections such as H and I girders, and for spraying rollers when rolling seamless pipes.

2~3010~

Two embodiments of the spray head 2 are shown in Figures 4 and 5, each consisting of a dispenser unit 1, a housing with product inlet 8, a spray head with hole type nozzle 9, a screening device 11, and a locking mechanism 10. Locking mechanism 10 is adapted to be responsive to the delivery pressure, that is, when the delivery pressure, under control of the controller and distributor unit 6, is above a predetermined level, the locking mechanism 10 moves to an open position allowing the lubricant to be sprayed, and at such time as the pressure falls below a predetermined level, reverts to the closed position.
As shown in Figure 5, the dispensing unit 1 can also be divided into a plurality of chambers in such a way that each spray head 2, or group of spray heads 2 is provided with a separate chamber, thus allowing individual control over the timing and volume of lubricant delivered, to a specified location as may be desired. As a result, it is possible to avoid unnecessary waste of lubricant and save on overall operating and material costs.
It will be obvious to a person skilled in the art that the scope of the invention is not restricted to the embodiments disclosed above, but may instead be varied within the scope of the following claims without departing from the spirit and scope of the invention.

Claims (9)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for applying a graphitic lubricant suspension onto a tool or workpiece in the hot forming of metals, comprising:
spray means for spraying a graphitic lubricant suspension onto said tool or said workpiece;
dispensing means for dispensing the graphitic lubricant suspension to said spray means, said spray means being fixably adapted to said dispensing means; and mounting means for supporting said dispensing means and said spray means in fixed relation to said tool or said workpiece.
2. A device as claimed in claim 1, wherein said dispensing means has a hollow cylindrical shape.
3. A device as claimed in claim 1, wherein said dispensing means has a chamber.
4. A device as claimed in claim 1, wherein said dispensing means comprises a plurality of chambers disposed so as to dispense said graphitic lubricant suspension to a plurality of said spray means either individually or in groups.
5. A device as claimed in claim 1, wherein said mounting means is adapted such that said dispensing means may be rotated about its longitudinal axis and locked at a desired angle for spraying.
6. A device as claimed in claim 5, wherein said mounting means is further adapted such that said dispensing means may be moved translationally along the longitudinal axis, and locked at a desired position.
7. A device as claimed in claim 6, wherein said rotational and said translational motions are driven by actuating means.
8. A device as claimed in any of claims 1 to 7, wherein said graphitic lubricant suspension is supplied to said dispensing means by a control and distribution means, said control and distribution means comprising a programmable control unit, and a high-pressure filter unit.
9. A device as claimed in any of claims 1 to 7, wherein said spray means comprises:
a housing with a product inlet;
a spray head having a hole-type nozzle;
a locking mechanism; and a screening device.
CA002030109A 1989-11-15 1990-11-15 Device for applying graphitic lubricant suspensions Abandoned CA2030109A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH411289 1989-11-15
CH4112/89 1989-11-15

Publications (1)

Publication Number Publication Date
CA2030109A1 true CA2030109A1 (en) 1991-05-16

Family

ID=4270034

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002030109A Abandoned CA2030109A1 (en) 1989-11-15 1990-11-15 Device for applying graphitic lubricant suspensions

Country Status (11)

Country Link
EP (1) EP0432408B1 (en)
JP (1) JP2841840B2 (en)
CN (1) CN1022025C (en)
AR (1) AR248450A1 (en)
AT (1) ATE116728T1 (en)
BR (1) BR9005780A (en)
CA (1) CA2030109A1 (en)
DE (1) DE59008195D1 (en)
ES (1) ES2066085T3 (en)
MX (1) MX171751B (en)
RU (1) RU2033865C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5638893A (en) * 1993-10-07 1997-06-17 Fata Hunter, Inc. Parting agent spray system
NL1018409C2 (en) * 2001-06-28 2003-01-07 Jan Best Spray device, especially for preventing ice formation on runways, has spray cap with piston cylinder device connected to overpressure supply and underpressure outlet
CN114226160B (en) * 2021-11-29 2024-04-05 辽阳兴旺石墨制品有限公司 Graphite copper bush processingequipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2004386A (en) * 1931-03-23 1935-06-11 Clarence G Wehrly Apparatus for lubricating trolleys
US3249305A (en) * 1963-11-18 1966-05-03 Bird Machine Co Spray nozzle
US3556255A (en) * 1968-06-17 1971-01-19 Sperry Rand Corp Electrostatic application of solid lubricants
DE3044310C2 (en) * 1980-11-25 1984-09-27 Friedrich Grohe Armaturenfabrik Gmbh & Co, 5870 Hemer Shower equipment
US4824019A (en) * 1981-06-10 1989-04-25 Lew Hyok S Lawn-border sprinkler
JPS6017602A (en) * 1983-07-08 1985-01-29 株式会社日立製作所 Coal gasifying composite generating plant
JPS6231039A (en) * 1985-08-02 1987-02-10 Hitachi Ltd Optical axis controller for optical recording and reproducing device
JPH01167396A (en) * 1987-12-24 1989-07-03 Nisshin Steel Co Ltd Lubricant for hot-rolling stainless steel

Also Published As

Publication number Publication date
JP2841840B2 (en) 1998-12-24
MX171751B (en) 1993-11-11
EP0432408A1 (en) 1991-06-19
DE59008195D1 (en) 1995-02-16
JPH03216210A (en) 1991-09-24
ES2066085T3 (en) 1995-03-01
CN1051874A (en) 1991-06-05
ATE116728T1 (en) 1995-01-15
EP0432408B1 (en) 1995-01-04
AR248450A1 (en) 1995-08-18
CN1022025C (en) 1993-09-08
RU2033865C1 (en) 1995-04-30
BR9005780A (en) 1991-09-24

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued