EP0890654A1 - Appareil pour l'uniformisation de la répartition de la pression des gaz à l'orifice de sortie d'une buse à jet plat - Google Patents

Appareil pour l'uniformisation de la répartition de la pression des gaz à l'orifice de sortie d'une buse à jet plat Download PDF

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Publication number
EP0890654A1
EP0890654A1 EP98110783A EP98110783A EP0890654A1 EP 0890654 A1 EP0890654 A1 EP 0890654A1 EP 98110783 A EP98110783 A EP 98110783A EP 98110783 A EP98110783 A EP 98110783A EP 0890654 A1 EP0890654 A1 EP 0890654A1
Authority
EP
European Patent Office
Prior art keywords
gas outlet
inner tube
jet nozzle
outer tube
outlet openings
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.)
Granted
Application number
EP98110783A
Other languages
German (de)
English (en)
Other versions
EP0890654B1 (fr
Inventor
Heinrich Pannenbecker
Ronald Jabs
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.)
DUMA MASCHINEN UND ANLAGENBAU GMBH
Original Assignee
DUMA MASCHINEN- und ANLAGENBAU BETEILIGUNGS GmbH
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 DUMA MASCHINEN- und ANLAGENBAU BETEILIGUNGS GmbH filed Critical DUMA MASCHINEN- und ANLAGENBAU BETEILIGUNGS GmbH
Publication of EP0890654A1 publication Critical patent/EP0890654A1/fr
Application granted granted Critical
Publication of EP0890654B1 publication Critical patent/EP0890654B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/20—Strips; Plates

Definitions

  • the invention relates to a device for Equalization of the gas pressure distribution over the Outlet opening of a flat jet nozzle, in particular a flat jet nozzle for blowing off liquid applied protective metal of steel sheets.
  • scraper nozzles For the production of galvanized sheet steel so-called scraper nozzles are used, the excess Zinc of the steel sheet emerging from the zinc bath by means of Blow off gas pressure. (DE 40 24 229 C1, DE-OS 20 46 441) Zur Achieving a uniformly coated steel sheet the scraper nozzles must unite over their entire length have the same gas outlet pressure as possible. This is particularly important at very low blow-off pressures.
  • the invention has for its object a To create device that in front of the flat fan nozzle pending gas pressure equalized so far that the escaping gas jet over the entire length of the nozzle has extremely uniform gas outlet pressure.
  • This object is achieved with a device solved the one with from the flat jet nozzle gas to be blown and an inner tube this has a flush outer tube, wherein the inner tube and the outer tube each have a large number spaced apart, in the longitudinal direction of the pipe arranged gas outlet openings and relative are mutually adjustable such that the Gas outlet openings of the inner tube with the Gas outlet openings of the outer tube depending on the degree of Adjustment partially or completely covered arrive, the gas outlet openings of the inner tube and the outer tube with partial or complete Coverage essentially symmetrical to Outlet opening of the flat jet nozzle are arranged.
  • the inner tube opposite the outer tube can the openings of the outer tube and the inner tube so in overlap brought that under a higher pressure standing gas in the inner tube evenly, regulated and temporally adapted to the production process in the interior the blow-off nozzle.
  • the zinc blow-off nozzle is thus over the entire nozzle length with the same pre-pressure acted upon and can in turn an even Blow-off pressure over the entire nozzle length towards the Dispense galvanized steel sheet. It is possible that required uniform blow-off pressure even at low To achieve blow-off pressures.
  • a preferred embodiment of the invention Device is characterized in that either Inner tube or the outer tube fixed and the other tube is rotatably mounted. In this way the user can Outlet opening of the flat jet nozzle escaping gas pressure can be controlled very precisely and precisely.
  • the inner tube can be charged with gas from two sides. This design enables the equalization further optimize the gas pressure distribution.
  • the gas outlet openings preferably have in the inner tube a larger cross section than that corresponding gas outlet openings in the outer tube. This configuration also advantageously contributes Uniformization of the gas pressure distribution on the Outlet opening of the flat jet nozzle at.
  • the gas outlet openings in the inner tube are preferred formed in the form of slots that run across the Longitudinal axis of the inner tube run.
  • the one with the Corresponding gas outlet openings in the inner tube Gas outlet openings in the outer tube can preferably also from transverse to the pipe longitudinal axis Slots exist. This advantageous embodiment enables a stepless regulation of the Gas outlet pressure at the flat jet nozzle.
  • the gas outlet openings in the outer tube can also consist of several parallel ones There are rows of holes that extend over part of the Extend pipe circumference.
  • the device of the invention can be both new as well as with existing flat jet nozzles realize. If there is enough space, can the device according to the invention in an existing Flat jet nozzle within one on the flat jet nozzle attached, an opening to the interior of the Housing having a flat jet nozzle can be mounted. The device can also save space within the Flat jet nozzle can be installed. This arrangement is especially with newly manufactured flat jet nozzles expedient.
  • Figure 1 shows a first embodiment of a device according to the invention.
  • the device exists from a fixed, closed at one end Outer tube 1 and an inner tube rotatably mounted therein 2.
  • On the inner tube 2 is a rotary connection 3 stationary gas supply line 4 connected via which Blow-off gas 12 is supplied.
  • a lever 10 attached to the not rotary actuator shown is coupled.
  • the outer tube 1 is via throat-shaped bearings on the flat fan nozzle (not shown) fixed.
  • the outer tube 1 and the inner tube 2 each have one A large number of parallel, transverse to the longitudinal axis of the pipe Slots for the gas outlet.
  • Figures 5a and 5b is shown by a rotary movement 11 via the lever 10 formed in the inner tube 2 Slots 7 with the slots 5 in the outer tube 1 in Brought coverage.
  • Fig. 5a a partial Coverage of slots 5 and 7, namely a half 5b is shown in the open position full coverage or the fully open Position.
  • the degree of coverage of slots 5 and 7 depends on the pressure requirement 14, the one to galvanized steel sheet 15 should act (see FIG. 7 and 8).
  • Figure 3 shows a longitudinal section through the device 1, which here in an additional housing Flat jet nozzle 8 or 13 in the interior Flat jet nozzle 9 is mounted (see FIGS. 7 and 8).
  • the outer tube 1 which is closed at the end, projects through a circular opening in the wall of the flat jet nozzle in their interior 13.
  • the outer tube 1 faces outside the flat jet nozzle 8 or 9 on a flange that with the flat jet nozzle is welded or screwed. It it can be seen that the gas outlet openings arranged symmetrically within the flat jet nozzle are, i.e. the distance of the far left Gas outlet opening to the left end wall of the nozzle and the Distance from the rightmost gas outlet to right nozzle end wall are the same.
  • Fig. 4 shows a preferred variant of the device according to the invention.
  • both ends of the Inner tube via rotary connections 3 each with a stationary gas supply line 4 connected.
  • the outer tube penetrates the flat jet nozzle 8 or 9 both on their right and on their left Face.
  • the assembly of the outer tube 1 and inner tube 2 existing control unit can be used as required in the interior 13 of the flat jet nozzle 9 (see FIG. 8) or in one the flat jet nozzle 8 attached housing 16, which is open to the interior 13 of the flat jet nozzle 8 (see Fig. 7).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Nozzles (AREA)
  • Lasers (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
EP98110783A 1997-07-09 1998-06-12 Appareil pour l'uniformisation de la répartition de la pression des gaz à l'orifice de sortie d'une buse à jet plat Expired - Lifetime EP0890654B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729232 1997-07-09
DE19729232A DE19729232C1 (de) 1997-07-09 1997-07-09 Vorrichtung zur Vergleichmäßigung der Gasdruckverteilung über die Austrittsöffnung einer Flachstrahldüse

Publications (2)

Publication Number Publication Date
EP0890654A1 true EP0890654A1 (fr) 1999-01-13
EP0890654B1 EP0890654B1 (fr) 2001-08-29

Family

ID=7835067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110783A Expired - Lifetime EP0890654B1 (fr) 1997-07-09 1998-06-12 Appareil pour l'uniformisation de la répartition de la pression des gaz à l'orifice de sortie d'une buse à jet plat

Country Status (3)

Country Link
EP (1) EP0890654B1 (fr)
AT (1) ATE204925T1 (fr)
DE (2) DE19729232C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954231C1 (de) * 1999-11-04 2000-12-28 Duma Masch Anlagenbau Vorrichtung zur Vergleichmäßigung der Gasdruckverteilung über die Austrittsöffnung einer Flachstrahldüse
ITMI20111131A1 (it) * 2011-06-21 2012-12-22 Danieli Off Mecc Dispositivo di generazione di getto di gas per processi di rivestimento di nastri metallici

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046441A1 (de) 1970-04-29 1972-08-03 Wheeling Pittsburgh Steel Corp Verfahren und Vorrichtung zum Abstreifen einer Flüssigkeit von der Oberfläche eines bewegten Bleches
JPS5848656A (ja) * 1981-09-16 1983-03-22 Nisshin Steel Co Ltd 連続溶融メツキ装置のノズルヘツダ
US4499853A (en) * 1983-12-09 1985-02-19 Rca Corporation Distributor tube for CVD reactor
JPS6082652A (ja) * 1983-10-07 1985-05-10 Nisshin Steel Co Ltd 気体絞り装置
DE4024229C1 (fr) 1990-07-31 1991-07-18 Heinrich 4100 Duisburg De Pannenbecker
JPH04285147A (ja) * 1991-03-14 1992-10-09 Kawasaki Steel Corp ガスワイピングノズル

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046441A1 (de) 1970-04-29 1972-08-03 Wheeling Pittsburgh Steel Corp Verfahren und Vorrichtung zum Abstreifen einer Flüssigkeit von der Oberfläche eines bewegten Bleches
JPS5848656A (ja) * 1981-09-16 1983-03-22 Nisshin Steel Co Ltd 連続溶融メツキ装置のノズルヘツダ
JPS6082652A (ja) * 1983-10-07 1985-05-10 Nisshin Steel Co Ltd 気体絞り装置
US4499853A (en) * 1983-12-09 1985-02-19 Rca Corporation Distributor tube for CVD reactor
DE4024229C1 (fr) 1990-07-31 1991-07-18 Heinrich 4100 Duisburg De Pannenbecker
JPH04285147A (ja) * 1991-03-14 1992-10-09 Kawasaki Steel Corp ガスワイピングノズル

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 135 (C - 170) 11 June 1983 (1983-06-11) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 222 (C - 302) 9 September 1985 (1985-09-09) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 093 (C - 1029) 24 February 1993 (1993-02-24) *

Also Published As

Publication number Publication date
DE59801291D1 (de) 2001-10-04
ATE204925T1 (de) 2001-09-15
DE19729232C1 (de) 1999-04-08
EP0890654B1 (fr) 2001-08-29

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