US3476081A - Fluidizing chamber - Google Patents

Fluidizing chamber Download PDF

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Publication number
US3476081A
US3476081A US354594A US3476081DA US3476081A US 3476081 A US3476081 A US 3476081A US 354594 A US354594 A US 354594A US 3476081D A US3476081D A US 3476081DA US 3476081 A US3476081 A US 3476081A
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United States
Prior art keywords
chamber
fluidizing
seal
wire
air
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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
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US354594A
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English (en)
Inventor
Walter K Facer
Jane H M Rigo
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United States Steel Corp
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United States Steel Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
    • B05C19/02—Apparatus specially adapted for applying particulate materials to surfaces using fluidised-bed techniques
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/906—Seal for article of indefinite length, e.g. strip, sheet

Definitions

  • a fluidized bed coating apparatus adapted to treat a substrate of indefinite length passing horizontally therethrough.
  • the chamber being sealed by pressurized air-sealing means, through which the substrate passes and which are secured at either the chamber end walls or at a compartmentizing wall whereby to select an effective length of fluidizing chamber.
  • Fluid mediumdeflecting plates disposed in said chamber and mounted in close proximity to, but above, the sealed openings of the chamber.
  • This invention relates to an apparatus for coating an elongated body and more particularly to the coating of a steel wire with resin.
  • This type of coating has been applied by various methods and apparatuses.
  • Church Patent No. 3,108,022 dated Oct. 22, 1963 shows one type of apparatus which has been used.
  • this apparatus like others of which we have knowledge, has various disadvantages.
  • Church the air used at the seals is not uniformly distributed and will have little fluidizing effect.
  • the chamber containing the fluidized bed must be relatively air tight so that there is a problem in charging the resin.
  • a further object is to provide such apparatus which need not have an enclosed or air tight top.
  • a still further object is to provide such apparatus which efficiently utilizes the gas supplied to the fluidized bed.
  • FIGURE 1 is a schematic view of the coating line of our invention
  • FIGURE 2 is a view, partly in section, of the priming unit of our invention.
  • FIGURE 3 is a view, partly in section, of the coating unit of our invention.
  • FIGURE 4 is a sectional view of a detail of the coating unit.
  • reference numeral 2 indicates a pay off reel for supporting a coil of wire W to be coated.
  • the wire W passes through standard roll straighteners 3 to a cleaning tank 4 of any suitable type and then through a water rinse tank 6. From here the wire W passes successively through a priming unit 8, drying unit 10, preheat induction coil 12, coating chamber 14, post heat induction coil 16, fusion area 18 and water quench 20 to a take up 22 where it is coiled. While the description will be directed to the coating of wire; strand, cord, rope, strip or like elongated structures may be coated as well with only slight modification.
  • the priming unit 8 as shown in FIGURE 2 includes a chamber 24 having a spiraled cord wipe 26 therein through which the wire W passes.
  • a liquid primer is delivered into chamber 24 and directed onto wire W through a conduit 28 and is returned to a reservoir (not shown) through a drain 30.
  • the coating chamber 14 as shown in FIGURES 3 and 4 has end walls 32 and 34 with aligned openings 36 and 38 therein.
  • An entry air seal 40 is supported on the wall 32 and an exit air seal 42 is supported on the wall 34.
  • the seal 40 includes a hollow cylindrical member 44 having an externally threaded reduced diameter portion 46 and a larger diameter portion 48.
  • the portion 46 has an axial opening 50 therethrough which is only slightly larger than the diameter of the wire W.
  • the portion 48 has an opening or chamber 52 therein which is connected to the opening 50 by means of a beveled portion 54which is preferably arranged at an angle of 60 to the-axisof the wire. Threads 56 are provided on the inlet side of opening 52 and a nozzle 58 is threaded into the threads 56. The forward end of nozzle 58 is tapered at the same angle as tapered portion 54.
  • the air seal 40 is attached to the wall 32 by means of a nut 60 threaded on portion 46.
  • a gasket or other sealing member 62 is provided between the portion 48 and the outside of wall 32.
  • the nozzle 58 is threaded into threads 56 an amount such that a conical port 64 is provided for air passage.
  • the size of the opening of port 64 may be varied as desired-
  • Air is delivered into the chamber 52 through a conduit 68.
  • the air seal 42 has essentially the same construction as air seal 40 and corresponding parts are indicated by priming the reference numerals applied to the parts of air seal 40.
  • the openings through portion 46' and nozzle 58' are substantially larger than the openings through portion 46 and nozzle 58. Air is delivered into chamber 52' at diametrically opposed positions through conduits 70 and 72.
  • An air diffusion board 74 is arranged a short distance above bottom 76 of the chamber 14.
  • a manifold 78 supported on top of chamber 14 has a chamber 80 around its periphery. Inner walls 82 of the manifold 78 have closely spaced holes 84 therein for a purpose which will appear later.
  • a conduit 86 is connected to the manifold 78 and leads to a suction fan 88.
  • a deflector plate 90 is mounted on each end wall above the air seal and extends downwardly and inwardly. Preferably the plates terminate a short distance from each side of chamber 14.
  • Two vertical partitions 92 are arranged in the chamber 14 intermediate the ends thereof. Each partition 92 includes flanged members 94 around the transverse periphery of chamber 14.
  • each flanged member 94 preferably has a downwardly extending flange 95 which divides board 74 into sections.
  • a plate 96 is attached to the member 94 with a sealing member 98 therebetween.
  • Each plate 96 has an opening 100 therethrough which is in alignment with openings 36 and 38.
  • Dividers 102 are provided in plenum chamber 104 formed between the bottom 76 and diffusion board 74.
  • a seal 103 is provided between the top flange of divider 102 and the bottom of boards 74.
  • Air is delivered into the chamber 104 from an air source (not shown) through air manifold 106 and branch conduits 108, 110 and 112.
  • the conduits 108, 110 and 112 have valves 114, 116 and 118 therein.
  • a removable cover 120 is preferably provided over at least a portion of the top of the manifold 78. Air is delivered along the wire W into the induction coil 12 through an air conduit 122. Valves 124, 126, 128 and 130 control the flow of air through conduits 68, 70 and 72 into the air seals and through the conduit 122.
  • wire W is threaded through the line and a granulated resin material 132 is placed in the coating chamber 14.
  • This resin may be thermoplastic or thermosetting.
  • the type of resin does not form any part of the present invention but the following resins have been used: Cellulosic, chlorinated polyether, eposy, nylon, polyester, polyethylene, dry blended vinyl and pre-fused freeze-ground vinyl.
  • the exit seal 42 will be attached to the end wall 34 as shown.
  • the line is then started in operation with the valves 114, 116 and 118 being open.
  • liquid primer is directed directly onto the wire W and after partial draining the primer is more uniformly distributed by passage through the wool felt cord 26.
  • the thickness of the primer may be varied by changing the number of wraps of the cord 26 around the wire.
  • the primer materials form no part of the present invention but that sold by Michigan Chrome and Chemical Company as MC1445 primer and that sold by Polymer Processes Incorporated as VC primer have been used.
  • the primer is then dried in the drying unit and the wire W preheated as it passes through induction coil 12. Flow of air through conduit 122 into the coil 12 has been found necessary in order to purge the priming fumes and to keep the coil free of accumulations.
  • the wire from the coating chamber 14 passes through the fusion zone 18 where the particles of resin on the wire fuse together and to the wire to obtain a smooth surface. In some instances heat will be supplied to the wire W by means of the induction coil 16. This is done only when additional heat is required on the wire which is most likely to occur with small diameter wires.
  • the fused wire then passes through the water quench 20 and hence to the take-up 22 where it is coiled.
  • Apparatus for coating a moving elongated object comprising means for moving said object longitudinally, a chamber for containing a powdered resin; means for delivering gas to the bottom of said chamber including exit means in an upper portion thereof for the egress of the fluidizing gas; an opening formed at each end wall of the chamber, horizontally aligned with one another; chamber seal means disposed at each said opening; each seal means comprising an apertured nose portion removably secured at the opening of the associated chamber end wall, said nose portion being formed on an end wall of an enlarged cylindrical chamber which extends outwardly of said fluidizing chamber, the other end wall of said cylindrical chamber including a screw-threaded opening which is in alignment with the aperture through said nose portion, an externally screw-threaded elongated nozzle member extending into said cylindrical chamber and engaged with the screw-threads at the opening in said other end wall whereby said nozzle is axially adjustable for translation to and from the apertured nose portion, the aperture exending through said nozzle being at least as large as and in horizontal
  • exit means includes a plurality of openings disposed about the periphery of a top portion of the fluidizing chamber and means for applying suction at said openings.
  • Apparatus according to claim 2 combined with means to preheat said article, said means comprising an induction coil through which the elongated object passes and disposed in the proximity of the entrance seal to the fluidizing chamber; and
  • the aperture in said vertical wall member being in horizontal alignment with the apertures of said seal means; said seal means being removably securable at said aperture of said vertical wall member whereby an effective length of fluidizing chamber may be selected;
  • said means for delivering fluidizing gas include means for selectively delivering such fluidizing gas to each compartment;
  • said vertical wall member including a deflector plate which corresponds to the deflector plates at the fluidizing chamber end walls.
  • the aperture in said vertical wall member being in horizontal alignment with the apertures of said seal means; said seal means being removably securable at said aperture of said vertical wall member whereby an effective length of fluidizing chamber may be selected;
  • said means for delivering fluidizing gas include means for selectively delivering such fluidizing gas to each compartment;
  • said vertical wall member including a deflector plate which corresponds to the deflector plates at the fluidizing chamber end walls.
  • Apparatus according to claim 6 wherein the apertures of the exit seal nose and nozzle parts are slightly larger than the corresponding entrance seal parts whereby to closely accommodate the coated objects.
  • exit means includes a plurality of openings disposed about the periphery of a top portion of the fluidizing chamber and means for applying suction at said openings.
  • Apparatus according to claim 7 combined with means to preheat said article, said means comprising an induction coil through which the elongated object passes and disposed in the proximity of the entrance seal to the fluidizing chamber, and
  • Apparatus according to claim 10 combined with means to apply a primer to said object;
  • said means to move being adapted to continuously move the elongated object, seriatim through each of the object treating means.
  • Apparatus for coating a moving elongated object comprising means for moving said object longitudinally; a chamber for containing a powdered resin; means for delivering gas to the bottom of said chamber whereby to fiuidize said powdered resin; said chamber including exit means in an upper portion thereof for the egress of the fluidizing gas; an opening formed at each end wall of the chamber, generally horizontally aligned with one another; chamber seal means disposed at each said opening; each seal means having an aperture therethrough of a size to closely accommodate the passage of said elongated object therethrough and means for feeding pressurized gas into said aperture in a direction toward said fluidizing chamber; and a downwardly and inwardly directed defiector plate mounted on each fluidizing chamber end wall, in the proximity of but above the opening therein, whereby to intercept fluidizing medium thereat and inside of said fluidizing chamber.
  • Apparatus according to claim 12 in which said fluidizing chamber is compartmented by at least one ver tically extending, apertured wall member; the aperture in said vertical wall member being in horizontal alignment with the apertures of said seal means; seal means on said apertured wall member; said seal means being removably securable whereby an effective length of fluidizing chamber may be selected; said means for delivering fluidizing gas include means for selectively delivering such fluidizing gas to each compartment; and said vertical wall member including a deflector plate which corresponds to the deflector plates at the fluidizing chamber end walls.

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Treatment Of Fiber Materials (AREA)
US354594A 1964-03-25 1964-03-25 Fluidizing chamber Expired - Lifetime US3476081A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35459464A 1964-03-25 1964-03-25
US84075069A 1969-07-10 1969-07-10

Publications (1)

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US3476081A true US3476081A (en) 1969-11-04

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Application Number Title Priority Date Filing Date
US354594A Expired - Lifetime US3476081A (en) 1964-03-25 1964-03-25 Fluidizing chamber
US840750A Expired - Lifetime US3560239A (en) 1964-03-25 1969-07-10 Method of coating an elongated body

Family Applications After (1)

Application Number Title Priority Date Filing Date
US840750A Expired - Lifetime US3560239A (en) 1964-03-25 1969-07-10 Method of coating an elongated body

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US (2) US3476081A (US06235095-20010522-C00021.png)
JP (1) JPS4430395B1 (US06235095-20010522-C00021.png)
BE (1) BE661657A (US06235095-20010522-C00021.png)
DE (1) DE1427661A1 (US06235095-20010522-C00021.png)
FR (1) FR1426803A (US06235095-20010522-C00021.png)
GB (1) GB1106951A (US06235095-20010522-C00021.png)
LU (1) LU48262A1 (US06235095-20010522-C00021.png)
NL (1) NL6503756A (US06235095-20010522-C00021.png)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589335A (en) * 1968-09-23 1971-06-29 British Insulated Callenders Apparatus for applying powder to elongated article
US3603288A (en) * 1966-12-02 1971-09-07 Anchor Post Prod Apparatus for continuous coating of metallic products with fusible pulverulent materials
US4051809A (en) * 1976-09-22 1977-10-04 Westinghouse Electric Corporation Apparatus for cleaning and coating an elongated metallic member
US4070503A (en) * 1974-08-16 1978-01-24 S.A., des Cableries & Trefileries de Cossonay Process for continuously coating a metal wire at high velocity
US4102300A (en) * 1974-08-16 1978-07-25 S.A. Des Cableries & Trefileries De Cossonay Apparatus for continuously coating a metal wire at high velocity
US4606928A (en) * 1985-03-07 1986-08-19 Electrostatic Technology Incorporated Vortex effect electrostatic fluidized bed coating method and apparatus
US4808432A (en) * 1986-08-18 1989-02-28 Electrostatic Technology Incorporated Electrostatic coating apparatus and method
US5101758A (en) * 1988-08-25 1992-04-07 S. G. Owen (Northampton) Limited Air knife
CN104741299A (zh) * 2013-12-29 2015-07-01 上海逸舟塑胶五金有限公司 软管的银粉涂装装置及其涂装方法
CN117066063A (zh) * 2023-09-06 2023-11-17 台玻悦达汽车玻璃有限公司 一种汽车玻璃生产用玻璃喷粉装置

Families Citing this family (29)

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US3853581A (en) * 1972-06-02 1974-12-10 Air Ind Method of coating articles with electrostatically charged particles
US4131690A (en) * 1975-05-05 1978-12-26 Northern Electric Company Limited Method of powder coating an insulated electrical conductor
GB1549346A (en) * 1975-05-12 1979-08-08 Armco Inc Method of coating elongated metallic members with a thermosetting plastics coating
US4244985A (en) * 1976-04-22 1981-01-13 Armco Inc. Method of curing thermosetting plastic powder coatings on elongated metallic members
FR2310810A1 (fr) * 1975-05-12 1976-12-10 Armco Steel Corp Procede pour former un revetement en matiere plastique sur un element long tel qu'un tube ou un fil metallique
US4182782A (en) * 1975-09-24 1980-01-08 Metallgesellschaft Aktiengesellschaft Method of a coating on the outside surface of a metal pipe
CA1066497A (en) * 1976-02-26 1979-11-20 Douglas C. Nethersole Electrostatic fluidized bed coating unit
US4263871A (en) * 1978-01-04 1981-04-28 Gibson Jack Edward Apparatus for powder coating sucker rod
US4285296A (en) * 1978-02-24 1981-08-25 Ball Corporation Lubricating apparatus
FR2477433A1 (fr) * 1980-03-10 1981-09-11 Dirickx Gerald Procede et dispositif d'application d'un revetement protecteur isolant notamment sur des elements allonges metalliques tels que des fils, tubes ou feuillards, et elements allonges revetus
US4445351A (en) * 1982-03-15 1984-05-01 Morgan Construction Company Fluidized bed lubricant container
US4526804A (en) * 1982-08-30 1985-07-02 Ball Corporation Method for providing sheet metal stock with finely divided powder
GB2195924B (en) * 1986-07-28 1991-01-09 Mesac Corp Electrostatic flocking apparatus
US5041301A (en) * 1989-06-15 1991-08-20 S. L. Electrostatic Technology, Inc. Method and apparatus for coating interior surfaces of objects with abrasive materials
US5242718A (en) * 1987-06-15 1993-09-07 Electrostatic Technology, Inc. Coating apparatus and method with fluidized bed feed effect
US4950497A (en) * 1989-06-15 1990-08-21 S.L. Electrostatic Technology, Inc. Method and apparatus for coating interior surfaces of objects
US5176755A (en) * 1990-02-14 1993-01-05 Armco Inc. Plastic powder coated metal strip
US5059446A (en) * 1990-02-14 1991-10-22 Armco Inc. Method of producing plastic coated metal strip
US5128172A (en) * 1990-10-12 1992-07-07 Whittick Thomas E Continuous coating process with inductive heating
US5439704A (en) * 1993-10-27 1995-08-08 Hunter Engineering Company, Inc. Combined coil and blank powder coating
WO1996020086A1 (de) * 1994-12-23 1996-07-04 Sms Schloemann-Siemag Aktiengesellschaft Verfahren zum ein- oder beidseitigen beschichten von metallischen bändern mit extrudiertem, duroplastischem kunstharz
DE10233344A1 (de) * 2002-07-23 2004-02-12 Degussa Ag Polyamid-Wirbelsinterpulver für das Dünnschichtwirbelsintern
DE10233345A1 (de) * 2002-07-23 2004-02-12 Degussa Ag Kontinuierliche chromatfreie Rohrbeschichtungen durch Wirbelsintern
FR2917755B1 (fr) * 2007-06-20 2010-02-12 Michelin Soc Tech Dispositif et procede de depot d'un solute sur un fil metallique
IT1395857B1 (it) 2009-10-12 2012-10-26 Menphis S P A Metodo ed apparato per incrementare lo spessore di decorazioni in rilievo, processo ed impianto per la decorazione in rilievo di superfici
JP5545112B2 (ja) * 2010-08-10 2014-07-09 新東工業株式会社 表面処理装置
DE102013203302B4 (de) * 2013-02-27 2015-02-19 Henkel Ag & Co. Kgaa Verfahren zum Herstellen einer Versiegelung und dessen Verwendung
US20160199928A1 (en) * 2015-01-14 2016-07-14 Yazaki Corporation Method of manufacturing protective structure and method of manufacturing protective structure of composite electric wire
ITUA20164280A1 (it) * 2016-06-10 2017-12-10 Anselmi & C S R L Metodo perfezionato per la preparazione di fili metallici rivestiti

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Publication number Priority date Publication date Assignee Title
US1595486A (en) * 1922-02-08 1926-08-10 Minton Ogden Velocity air vacuum seal, method and apparatus
US2540006A (en) * 1948-05-05 1951-01-30 Horace J Heffelfinger Machine for coating metal on metal pipes or tubing
US2602959A (en) * 1948-03-05 1952-07-15 John M Fenlin Apparatus for making tubular conduits
US2750681A (en) * 1953-04-21 1956-06-19 Berry Francois Jacq Barthelemy Fluidising devices
US3004861A (en) * 1956-01-12 1961-10-17 Polymer Corp Methods and apparatus for applying protective coatings
US3108022A (en) * 1960-05-09 1963-10-22 Polymer Processes Inc Apparatus for coating an elongate body with fluidized coating material
US3199491A (en) * 1961-03-24 1965-08-10 Degussa Apparatus for coating one surface of a strip by a fluid bed sintering procedure
US3208868A (en) * 1961-01-05 1965-09-28 Minnesota Mining & Mfg Method and apparatus for coating articles with particulate material
US3208869A (en) * 1961-01-16 1965-09-28 Jones & Laughlin Steel Corp Fluidized coating of pipe
US3233582A (en) * 1962-01-08 1966-02-08 Polymer Corp Apparatus for continuous fluidized bed coating of pipe
US3270364A (en) * 1964-08-12 1966-09-06 Maurice G Steele Air wipe device for wire

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595486A (en) * 1922-02-08 1926-08-10 Minton Ogden Velocity air vacuum seal, method and apparatus
US2602959A (en) * 1948-03-05 1952-07-15 John M Fenlin Apparatus for making tubular conduits
US2540006A (en) * 1948-05-05 1951-01-30 Horace J Heffelfinger Machine for coating metal on metal pipes or tubing
US2750681A (en) * 1953-04-21 1956-06-19 Berry Francois Jacq Barthelemy Fluidising devices
US3004861A (en) * 1956-01-12 1961-10-17 Polymer Corp Methods and apparatus for applying protective coatings
US3108022A (en) * 1960-05-09 1963-10-22 Polymer Processes Inc Apparatus for coating an elongate body with fluidized coating material
US3208868A (en) * 1961-01-05 1965-09-28 Minnesota Mining & Mfg Method and apparatus for coating articles with particulate material
US3208869A (en) * 1961-01-16 1965-09-28 Jones & Laughlin Steel Corp Fluidized coating of pipe
US3199491A (en) * 1961-03-24 1965-08-10 Degussa Apparatus for coating one surface of a strip by a fluid bed sintering procedure
US3233582A (en) * 1962-01-08 1966-02-08 Polymer Corp Apparatus for continuous fluidized bed coating of pipe
US3270364A (en) * 1964-08-12 1966-09-06 Maurice G Steele Air wipe device for wire

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603288A (en) * 1966-12-02 1971-09-07 Anchor Post Prod Apparatus for continuous coating of metallic products with fusible pulverulent materials
US3589335A (en) * 1968-09-23 1971-06-29 British Insulated Callenders Apparatus for applying powder to elongated article
US4070503A (en) * 1974-08-16 1978-01-24 S.A., des Cableries & Trefileries de Cossonay Process for continuously coating a metal wire at high velocity
US4102300A (en) * 1974-08-16 1978-07-25 S.A. Des Cableries & Trefileries De Cossonay Apparatus for continuously coating a metal wire at high velocity
US4051809A (en) * 1976-09-22 1977-10-04 Westinghouse Electric Corporation Apparatus for cleaning and coating an elongated metallic member
US4606928A (en) * 1985-03-07 1986-08-19 Electrostatic Technology Incorporated Vortex effect electrostatic fluidized bed coating method and apparatus
US4808432A (en) * 1986-08-18 1989-02-28 Electrostatic Technology Incorporated Electrostatic coating apparatus and method
US5101758A (en) * 1988-08-25 1992-04-07 S. G. Owen (Northampton) Limited Air knife
CN104741299A (zh) * 2013-12-29 2015-07-01 上海逸舟塑胶五金有限公司 软管的银粉涂装装置及其涂装方法
CN117066063A (zh) * 2023-09-06 2023-11-17 台玻悦达汽车玻璃有限公司 一种汽车玻璃生产用玻璃喷粉装置

Also Published As

Publication number Publication date
JPS4430395B1 (US06235095-20010522-C00021.png) 1969-12-08
NL6503756A (US06235095-20010522-C00021.png) 1965-09-27
BE661657A (US06235095-20010522-C00021.png)
DE1427661A1 (de) 1968-10-31
US3560239A (en) 1971-02-02
LU48262A1 (US06235095-20010522-C00021.png) 1965-06-08
GB1106951A (en) 1968-03-20
FR1426803A (fr) 1966-01-28

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