US3639720A - Metallizing gun - Google Patents

Metallizing gun Download PDF

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Publication number
US3639720A
US3639720A US66508A US3639720DA US3639720A US 3639720 A US3639720 A US 3639720A US 66508 A US66508 A US 66508A US 3639720D A US3639720D A US 3639720DA US 3639720 A US3639720 A US 3639720A
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US
United States
Prior art keywords
head
support
contact members
pair
screw
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
US66508A
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English (en)
Inventor
Roger Malivoir
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.)
Pont a Mousson SA
Centre de Recherches de Pont a Mousson
Original Assignee
Pont a Mousson SA
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 Pont a Mousson SA filed Critical Pont a Mousson SA
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Publication of US3639720A publication Critical patent/US3639720A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
    • B05B7/224—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material having originally the shape of a wire, rod or the like

Definitions

  • ABSTRACT Metallizing gun employing an electric arc and having two wire m 4 2 7 m 6 7 mn ..1 mml m U ,m L .1 o W d std U-mF HUM 555 [.11
  • the present invention relates to a metallizing gun employing an electric are produced between two metal wires which are fed forward, the metal thus melted being projected by a stream of compressed air onto the surface to be coated.
  • the heat of the are also deteriorates the air-blowing nozzle which must be replaced.
  • the object of the invention is to remedy these drawbacks by reducing as far possible the periods of immobilization of the gun for cleaning and repairs.
  • the invention provides an improved metallizing gun employing an electric arc of the aforementioned type and comprising a feed device for feeding the metal wires to be sprayed through electrically conductive wire guides, and a blowing nozzle for spraying the molten metal.
  • the two wire guides and the blowing nozzle are carried by a detachable interchangeable head with which they are combined and which is fixed to the body of the gun by a single screw.
  • FIG. 1 is a diagrammatic plan view partly in section of a gun according to the invention
  • FIG. 2 is a partial sectional view of the gun on an enlarged scale, taken along line 22 of FIG. I, and through one of the wire guides;
  • FIG. 3 is a sectional view taken along line 3-3 of FIG. 1 and through the two electric power supply rods;
  • FIG. 4 is a sectional view taken along line 4-4 of FIG. 1;
  • FIG. 5 is a sectional view similar to FIG. 4 of the detachable head alone.
  • FIG. 6 is a diagrammatic bottom view of the head.
  • the metallizing gun comprises on a base A two parts: a fixed part or body B and an interchangeable part or head C.
  • the fixed part or body B is fixed to the base A and comwires are fed by the rollers 3 through two apertures or outlets 4 Placed in front of the motor speed reducer unit on the base A is a block 6 of insulating material fixed to the support by screws, bolts or other means.
  • a pipe 7 (FIG. 4) supplying compressed air and opening out in the upper part of the block 6 by way of a plane end provided with a groove containing a sealing ring 8 and, secondly, two rods 9 (FIGS. 2 and 3) supplying electric power.
  • Each of the rods 9 has its lower part connected to a current supply bar 10 and an upper part, which protudes from the block 6 provided with a contact member or cylindrical plug 11 having an axis Y-Y and upwardly convergent tlat faces parallel to the longitudinal median plane XX.
  • the block 6 is also provided with a vertical aperture 12 (FIG. 4) which is screw-threaded and receives a single screw 13 for clamping the detachable head C of the gun in position.
  • the head C comprises a body or block 14 of insulating material which is symmetrical with respect to the plane XX.
  • Extending in a horizontal plane through the body 14 are two wire guides 15 which are symmetrical with respect to the plane XX (FIG. 1) and bent in such manner that the outlet end portions 16 thereof remote from the motor speed reducer unit (1,2) are brought closer together so that their axes make an acute angle a (FIG. 1).
  • the inlet end portions 17 of the guides 15 are also symmetrical with respect to the plane XX and constitute plugs spaced apart in such manner that they are able to fit into the apertures 4.
  • Each wire guide is integral with a metal cylindrical support or contact member 18 which has a vertical axis Y-Y and a V-shaped notch 18a (FIG. 3) matching the projection 11a of the plug 11 of the corresponding rod 9.
  • a blowing nozzle 19 is mounted the front part of the body 14 in the same horizontal plane as the wire guides 15 and located therebetween.
  • a vertical socket 20 puts the horizontal nozzle 19 in communication with the exterior, this socket being placed in such position that when the head C is mounted on the block 6 of the body B, the lower end face of this socket bears against the ring 8 in the annular groove in the pipe 7.
  • the body 14 is provided with an aperture in the shape of a keyhole which comprises a part 21 whose width is substantially greater than the diameter of the screw-threaded aperture 12 of the block 6 of the body B and a rear part 22 whose diameter exceeds that of the head 23 of the screw 13 screwed in the aperture 12.
  • the head C of the gun is protected or shielded throughout its periphery by asbestos sheets 24.
  • the head C is mounted on the block 6 of the body B in the following manner:
  • the plugs 17 are fitted in the corresponding apertures 4 of the motor speed reducer unit.
  • the notches 18a of the supports 18 of the wire guides 15 are then placed on the plugs ll of the power supply rods 9.
  • the lower face of the socket 20 bears on the sealing ring 8 in the groove in the end face of the pipe 7.
  • the narrow part 21 of the keyhole-shaped aperture is in front of the aperture 12. It is sufficient to screw the screw 14 in the screwthreaded aperture 12 to render the head C integral with the body 6.
  • the electric current passes through .the rods 9, the plugs 11, the supports 18 and the wire guides 15.
  • the wires are fed along the axes Z--Z through the wire guides.
  • the compressed air passes through the pipe 7 and the socket 20 and the nozzle 19.
  • the gun operates in the same way as an electric arc gun of known type.
  • the electric current and the compressed air supply are cut off and the screw 13 is unscrewed so as to permit first moving the head to extract the plugs 17 from the apertures 4 of the motor speed reducer unit and thus disconnect the 'wires between the plugs and the apertures.
  • the head C of the gun is still further shifted in such manner that the head 23 of the screw 13 comes in front of the wide part 22 of the keyhole-shaped aperture.
  • the plugs 17 are thus disengaged from the apertures 4 of the motor, speed-reducer unit.
  • the head C of the gun can be separated from the body C since the part 22 of the keyholeshaped aperture has a diameter exceeding that of the head 23 of the screw 13 (FIGS. 5 and 6),
  • the main advantage of the invention resides in the fact that it is possible to rapidly assemble and disassemble the head of the gun for maintenance and repairs.
  • a feature of the invention resides in the fact that the electric contacts between the head C of the gun and the electric power supply rods 9 are excellent notwithstanding the high intensity passing therethrough (about 700 amps).
  • a metallizing gun employing an electric are which is produced between and melts ends of two metal wires, said gun comprising means defining a support, two electric power supply conductors combined with said support, a pair of first contact members which are fixed in said support and insulated from each other and electrically connected to said conductors, a feed device having two outlets and fixed with respect to said support, for feeding said two wires through said outlets, means defining a head detachably mountable on said support in a given position, means defining two electrically conductive wire guides having outlet ends and inlet ends and mounted on said head in fixed relation to said head, a blowing nozzle mounted on said head in fixed relation to said head and adapted for connection to a compressed air supply for spray ing molten metal from said wires, a pair of second contact members fixed to said head and insulated from each other and electrically connected to said wire guides, said pairs of first and second contact members and said outlets of said feeding device and said wire guide inlet ends being relatively located in such positions that when said head is mounted in
  • one of said pairs of contact members is a pair of plugs and the other pair of contact members is a pair of sockets electrically engageable in said plugs, said clamping means acting on said head in a direction for maintaining said sockets on said plugs.
  • a metallizing gun employing an electric are which is produced between and melts ends of two metal wires, said gun comprising means defining a support, two electric power supply conductors combined with said support, a pair of first contact members which are fixed in said support and insulated from each other and electrically connected to said conductors, a feed device having two outlets and fixed with respect to said support, for feeding said two wires through said outlets, means defining a head detachably mountable on said support in a given position, means defining two electrically conductive wire guides having outlet ends and inlet ends and mounted on said head in fixed relation to said head, a blowing nozzle mounted on said head in fixed relation to said head and adapted for connection to a compressed air supply for spraying molten metal from said wires, a pairof second'contact members fixed to said head and insulated from each other and electrically connected to said wire guides, said pairs of first and second contact members and said outlets of said feeding device and said wire guide inlet ends being relatively located in such positions that when said head is mounted in said given
  • said clamping means comprise a single screw having an enlarged head and adjustably screw-threadedly engaged, in said support, and means defining an aperture extending through said head and having the shape of a keyhole having a narrow part having a width slightly smaller than the head of said screw and greater than the diameter of said screw, and a wide part having a width exceeding the diameter of a head of said screw, said screw head acting on said head in a direction to clamp said portions of said first and second contact members together.
  • a metallizing gun employing an electric are which is produced between and melts ends of two metal wires, said gun comprising means defining a support, two electric power supply conductors combined with said support, a pair of first contact members which are fixed in said support and insulated from each other and electrically connected to said conductors, a feed device having two outlets and fixed with respect to said support, for feeding said two wires through said outlets, means defining a head detachably mountable on said support in a given position, means defining two electrically conductive wire guides having outlet ends and inlet ends and mounted on said head in fixed relation to said head, a blowing nozzle mounted on said head in fixed relation to said head and adapted for connection to a compressed air supply for spraying molten metal from said wires, a pair of second contact members fixed to said head and insulated from each other and electrically connected to said wire guides, said pairs of first and second contact members and said outlets of said feeding device and said wire guide inlet ends being relatively located in such positions that when said head is mounted in said given position

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Nozzles (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
US66508A 1969-09-30 1970-08-24 Metallizing gun Expired - Lifetime US3639720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6933299A FR2058852A5 (fr) 1969-09-30 1969-09-30

Publications (1)

Publication Number Publication Date
US3639720A true US3639720A (en) 1972-02-01

Family

ID=9040818

Family Applications (1)

Application Number Title Priority Date Filing Date
US66508A Expired - Lifetime US3639720A (en) 1969-09-30 1970-08-24 Metallizing gun

Country Status (8)

Country Link
US (1) US3639720A (fr)
JP (1) JPS5040110B1 (fr)
CH (1) CH530227A (fr)
DE (1) DE2047896C3 (fr)
ES (1) ES383598A1 (fr)
FR (1) FR2058852A5 (fr)
GB (1) GB1297870A (fr)
SE (1) SE373507B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024369A (en) * 1975-06-23 1977-05-17 Metco, Inc. Dual size wire arc spray gun
US4095081A (en) * 1975-04-09 1978-06-13 Metallisation Limited Electric arc metal spraying devices
US4128754A (en) * 1978-03-06 1978-12-05 The United States Of America As Represented By The Secretary Of The Army Arc spray welding replaceable electrode tip
US4673788A (en) * 1983-11-15 1987-06-16 Buchler B-Set A.G. Straightening device for the wire of a wire electroerosion machine
US5319175A (en) * 1992-12-23 1994-06-07 Basix Industries Ltd. Apparatus for transferring electrical current to and from a moving wire
US5380973A (en) * 1992-12-23 1995-01-10 Basix Technologies Ltd. Current pickup indexing apparatus
US5384444A (en) * 1992-12-23 1995-01-24 Basix Technologies Ltd. Sleeve forming wire passageway around pickup
US5430268A (en) * 1992-12-23 1995-07-04 Basix Technologies Ltd. Method and apparatus for adjusting and replacing EDM components from the guide assembly working end

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632952A (en) * 1970-07-01 1972-01-04 Metco Inc Electric arc metal spray gun
DE3825510A1 (de) * 1988-07-27 1990-02-01 Perkin Elmer Corp Drahtpistole mit geregelter vorschubeinrichtung
DE102013107400B4 (de) * 2013-07-12 2017-08-10 Ks Huayu Alutech Gmbh Verfahren zur Entfernung des Oversprays eines thermischen Spritzbrenners

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628050A (en) * 1948-10-22 1953-02-10 Gen Railway Signal Co Wall hanger for electrical devices
US2841687A (en) * 1954-02-18 1958-07-01 Union Carbide Corp Method of applying hard-facing metals
FR1203370A (fr) * 1958-09-24 1960-01-18 Arnold Otto Meyer Pistolet de métallisation à arc électrique
US3312566A (en) * 1962-08-01 1967-04-04 Giannini Scient Corp Rod-feed torch apparatus and method
US3358114A (en) * 1962-08-07 1967-12-12 Inoue Kiyoshi Method of and apparatus for the electric spray-coating of substrates

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628050A (en) * 1948-10-22 1953-02-10 Gen Railway Signal Co Wall hanger for electrical devices
US2841687A (en) * 1954-02-18 1958-07-01 Union Carbide Corp Method of applying hard-facing metals
FR1203370A (fr) * 1958-09-24 1960-01-18 Arnold Otto Meyer Pistolet de métallisation à arc électrique
US3312566A (en) * 1962-08-01 1967-04-04 Giannini Scient Corp Rod-feed torch apparatus and method
US3358114A (en) * 1962-08-07 1967-12-12 Inoue Kiyoshi Method of and apparatus for the electric spray-coating of substrates

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095081A (en) * 1975-04-09 1978-06-13 Metallisation Limited Electric arc metal spraying devices
US4024369A (en) * 1975-06-23 1977-05-17 Metco, Inc. Dual size wire arc spray gun
US4128754A (en) * 1978-03-06 1978-12-05 The United States Of America As Represented By The Secretary Of The Army Arc spray welding replaceable electrode tip
US4673788A (en) * 1983-11-15 1987-06-16 Buchler B-Set A.G. Straightening device for the wire of a wire electroerosion machine
US5319175A (en) * 1992-12-23 1994-06-07 Basix Industries Ltd. Apparatus for transferring electrical current to and from a moving wire
US5380973A (en) * 1992-12-23 1995-01-10 Basix Technologies Ltd. Current pickup indexing apparatus
US5384444A (en) * 1992-12-23 1995-01-24 Basix Technologies Ltd. Sleeve forming wire passageway around pickup
US5430268A (en) * 1992-12-23 1995-07-04 Basix Technologies Ltd. Method and apparatus for adjusting and replacing EDM components from the guide assembly working end

Also Published As

Publication number Publication date
DE2047896C3 (de) 1973-10-04
DE2047896B2 (de) 1973-02-22
CH530227A (fr) 1972-11-15
ES383598A1 (es) 1973-01-01
SE373507B (sv) 1975-02-10
FR2058852A5 (fr) 1971-05-28
GB1297870A (fr) 1972-11-29
JPS5040110B1 (fr) 1975-12-22
DE2047896A1 (de) 1971-09-23

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