EP0142082B1 - Verfahren und Einrichtung zum Feuerverzinken von Rippenrohren - Google Patents

Verfahren und Einrichtung zum Feuerverzinken von Rippenrohren Download PDF

Info

Publication number
EP0142082B1
EP0142082B1 EP84112869A EP84112869A EP0142082B1 EP 0142082 B1 EP0142082 B1 EP 0142082B1 EP 84112869 A EP84112869 A EP 84112869A EP 84112869 A EP84112869 A EP 84112869A EP 0142082 B1 EP0142082 B1 EP 0142082B1
Authority
EP
European Patent Office
Prior art keywords
blow
facility
zinc
galvanising
area
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
Application number
EP84112869A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0142082A2 (de
EP0142082A3 (en
Inventor
Werner Ackermann
Klaus Dipl.-Ing. Schirmuly
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.)
Hoesch AG
Original Assignee
Hoesch 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 Hoesch AG filed Critical Hoesch AG
Priority to AT84112869T priority Critical patent/ATE43646T1/de
Publication of EP0142082A2 publication Critical patent/EP0142082A2/de
Publication of EP0142082A3 publication Critical patent/EP0142082A3/de
Application granted granted Critical
Publication of EP0142082B1 publication Critical patent/EP0142082B1/de
Expired legal-status Critical Current

Links

Images

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
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/38—Wires; Tubes
    • C23C2/385—Tubes of specific length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/022—Cleaning travelling work

Definitions

  • the invention relates to a system for hot-dip galvanizing finned tubes with system components arranged in line one behind the other at a treatment level, which are connected via an automatically operating transport device with horizontally and vertically attached support, guide and driving rollers or with a transport chain device in the preheating area.
  • US-A-3 722 463 shows a further development of the system described in US-A-3 122 114 for the continuous production and galvanizing of smooth tubes.
  • the individual smooth tubes are connected to form an endless tube.
  • the pretreatment of the connected smooth tubes includes a flux treatment (zinc ammonium chloride) and subsequent drying at approx. 200 ° C.
  • This procedure requires considerable exhaust air volumes with a large pollutant load in the galvanizing process due to the sublimation of the flux.
  • Environmental protection-related requirements can only be met with a corresponding exhaust air detection and downstream cleaning system, with the overall system being considerably less economical.
  • This known method and the device for the hot-dip galvanizing of pipes is only suitable for smooth pipes with the inclusion of a classic flux treatment and all the negative aspects resulting therefrom.
  • the present invention includes a system for galvanizing finned tubes without the flux treatment necessary according to the aforementioned publication.
  • the system according to the invention takes into account all specific requirements for hot-dip galvanizing the finned tube with variable handling of all relevant parameters and taking into account all requirements relevant to environmental protection.
  • the finned tube essentially consists of an oval base tube (or other cross-sections) on which a sheet metal fin is endlessly wound diagonally in the winding process, the finned tube being significantly different from a smooth tube, not least because of the surface area increased by a factor of 40.
  • Rib and base tube have no metallic connection and have considerable differences in material thickness. The division of the rib on the base tube is approx. 3 mm.
  • the state of the art in hot-dip galvanizing finned tubes is immersion in a zinc melt with upstream degreasing, rinsing, pickling, rinsing and fluxing. These upstream treatments are individual separate processes, the finned tubes each in individual immersion baths containing the corresponding degreasing, rinsing, pickling or the like. B. be immersed by means of a crane. Cooling takes place after galvanizing in a water bath. Qualified immediate treatment of the finned tube after galvanizing is not possible.
  • FR-A-2 181 863 and FR-A-2 323 772 systems for the continuous production of galvanized smooth pipes or for galvanizing smooth profiles are known, the system components mentioned in claim 1 in principle in FR-A -2 181 863 are described and the core of a system of this type, working under protective gas, with a preheating furnace and a galvanizing furnace is shown in principle in FR-A-2 323 772.
  • the galvanizing furnace has no separate melting and charging areas which are separated by a partition.
  • the advantages of the device according to the invention are, in particular, that it makes it possible to continuously pretreat finned tubes in closed treatment stages connected in quick succession without zinc galvanizing and aftertreatment, and thus in the optimal economical control of the zinc layer thickness with optimized technology the entire system, taking into account emission-relevant factors.
  • the system for hot-dip galvanizing finned tubes consists essentially of loading device 1, degreasing device 2 with blow-off device, rinsing device 3 with blow-off device, pickling device 4 with blow-off device, rinsing device 5 with blow-off device, preheating furnace 6, galvanizing furnace 7 with blow-off, vibrating or stripping device, cooling and Drying device 8, chromating device 9 with blow-off device, removal device 10 and from a transport device, not shown.
  • the finned tubes to be treated are automatically transported by means of the transport device consisting of support, guide and drive rollers or in the area of the preheating furnace from a transport chain device.
  • the transport speed is infinitely variable.
  • the finned tubes are fed manually via the loading device 1.
  • the treatment media are applied in the degreasing 2, rinsing 3, pickling 4, rinsing 5, cooling 8 and chromating 9 treatment stages by means of nozzles (not shown) in the spraying process.
  • the applied media are blown off after each special treatment in order to avoid or minimize discharge losses.
  • the indirectly gas-heated preheating furnace 6 is composed of several furnace segments which are equipped with individual controls.
  • the finned tubes are thus advantageously heated in a sliding manner from room temperature to the galvanizing temperature in the zinc bath of approximately 450-560 ° C.
  • the entire system works in a protective gas atmosphere, which prevents oxidation of the finned tubes in the preheating furnace 6.
  • Nitrogen with a hydrogen content of approximately 10% is preferably used as the inert gas.
  • the finned tubes are galvanized in the galvanizing furnace 7, also in a protective gas atmosphere in the temperature range of approx. 450 - 560 ° C, free of emissions and residues.
  • the finned tubes in the galvanizing furnace 7, which is formed with a zinc charging area 20 and a melting area 18 with a galvanizing pan 12, are flooded with zinc 19 by means of a zinc pump 16.
  • the arrangement of the galvanizing pan 12 over the melting area 18 in the galvanizing furnace 7 largely prevents leakage losses of the protective gas atmosphere 17 at the operating level of the zinc alloy.
  • the zinc 19 discharged from the galvanizing pan 12 with the finned tube is blown off vertically by means of a blow-off device 13 or a mechanical stripping or vibrating device . away. The occurrence of bridges between the finned tube fins and the formation of a drainage edge is effectively prevented.
  • the temporary corrosion protection is provided by the chromating.
  • the galvanizing furnace 7 has a refractory lining 11.
  • a zinc collecting container 14 is arranged below the blow-off device 13.
  • the device according to the invention allows the use of any zinc alloy. Flux treatment is also possible, which can be followed by rinsing step 5.
  • the flux can be applied similar to the treatment medium in the stages degreasing 2, rinsing 3, pickling 4, rinsing 5, cooling 8 and chromating 9. In order to avoid loss of discharge, the applied flux is blown off.
  • the finned tubes pretreated in this way are heated in the indirectly gas-heated preheating furnace 6, which is composed of several furnace segments with individual controls.
  • the heating of the finned tubes in the preheating takes place in the case of flux treatment thus advantageously slide from room temperature to about 150 0 C.
  • the entire system operates in a protective gas atmosphere, which prevents oxidation of the finned tubes in the preheating zone 6.
  • Nitrogen is preferably used as the inert gas.
  • the finned tubes are also galvanized in a protective gas atmosphere 17 in the temperature range of approx. 450 - 560 ° C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating With Molten Metal (AREA)
  • Chemically Coating (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Chemical Treatment Of Metals (AREA)
EP84112869A 1983-11-11 1984-10-25 Verfahren und Einrichtung zum Feuerverzinken von Rippenrohren Expired EP0142082B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112869T ATE43646T1 (de) 1983-11-11 1984-10-25 Verfahren und einrichtung zum feuerverzinken von rippenrohren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3340813 1983-11-11
DE3340813 1983-11-11

Publications (3)

Publication Number Publication Date
EP0142082A2 EP0142082A2 (de) 1985-05-22
EP0142082A3 EP0142082A3 (en) 1985-08-21
EP0142082B1 true EP0142082B1 (de) 1989-05-31

Family

ID=6214064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112869A Expired EP0142082B1 (de) 1983-11-11 1984-10-25 Verfahren und Einrichtung zum Feuerverzinken von Rippenrohren

Country Status (12)

Country Link
EP (1) EP0142082B1 (enrdf_load_stackoverflow)
JP (1) JPS60169568A (enrdf_load_stackoverflow)
AT (1) ATE43646T1 (enrdf_load_stackoverflow)
AU (2) AU3529884A (enrdf_load_stackoverflow)
BR (1) BR8405749A (enrdf_load_stackoverflow)
DD (1) DD231085A1 (enrdf_load_stackoverflow)
DE (2) DE3409935C1 (enrdf_load_stackoverflow)
ES (1) ES537521A0 (enrdf_load_stackoverflow)
GR (1) GR80858B (enrdf_load_stackoverflow)
IN (1) IN163652B (enrdf_load_stackoverflow)
YU (2) YU187484A (enrdf_load_stackoverflow)
ZA (1) ZA848756B (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720965A1 (de) * 1987-06-25 1989-01-05 Solms Juergen Verfahren und vorrichtung zum kontinuierlichen feuerverzinken von langfoermigem verzinkungsgut
DE3935146A1 (de) * 1989-09-06 1991-03-21 Wirtz Gmbh & Co Verfahren und vorrichtung zum kontinuierlichen feuerverzinken von rippenrohren
JPH04321895A (ja) * 1991-04-19 1992-11-11 Nichias Corp 流体加熱管
DE4324924A1 (de) * 1993-07-24 1995-01-26 Leybold Durferrit Gmbh Vorrichtung zum Reinigen und/oder zur Wärmebehandlung von Werkstücken, insbesondere von Profilbändern
DE4325452A1 (de) * 1993-07-29 1995-04-06 Theodor Willecke Verfahren und Vorrichtung zum Feuerverzinken von Eisenteilen
ATE188260T1 (de) * 1996-08-30 2000-01-15 Balcke Duerr Gmbh Verfahren zum feuerverzinken
DE10320071A1 (de) * 2003-05-05 2004-12-02 Basf Ag Alkoxygruppen aufweisende Ester von Phosphor-Sauerstoff-Säuren und ihre Verwendung als Korrosionsinhibitoren
DE102016106617A1 (de) * 2016-03-21 2017-09-21 Fontaine Holdings Nv Feuerverzinkungsanlage sowie Feuerverzinkungsverfahren
CN112481570A (zh) * 2019-09-12 2021-03-12 西藏中驰集团股份有限公司 一种新型镀锌工艺流程及其所用流水线

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771056A (en) * 1951-06-06 1956-11-20 Selas Corp Of America Apparatus for coating pipes
US3639142A (en) * 1968-06-10 1972-02-01 Bethlehem Steel Corp Method of galvanizing
JPS5017420B1 (enrdf_load_stackoverflow) * 1970-08-19 1975-06-20
US3673980A (en) * 1970-10-30 1972-07-04 Theodore H Krengel Protective and supporting means for apparatus for continuously coating steel strip
DE2105661A1 (en) * 1971-02-05 1972-08-10 Mandl J Hot dip metal coating - with melt flow along workpiece surface
US3845540A (en) * 1972-04-28 1974-11-05 Maneely Illinois Hot galvanizing process and apparatus
GB1433019A (en) * 1973-06-26 1976-04-22 Turner Lisle Ltd Galvanizing plant
DE2406939A1 (de) * 1974-02-14 1975-09-04 Friedrich Heck Verfahren zum ueberziehen von rohren und stangen mit schmelzfluessigen metallen
FR2323772A1 (fr) * 1975-05-30 1977-04-08 Delot Jose Procede de revetement metallique en continu de profils metalliques rigides
GB1532554A (en) * 1976-02-10 1978-11-15 Raymond A Metallic coating of metal tubes and similar work pieces

Also Published As

Publication number Publication date
BR8405749A (pt) 1985-09-17
DE3478474D1 (en) 1989-07-06
EP0142082A2 (de) 1985-05-22
ES8605865A1 (es) 1985-12-16
ATE43646T1 (de) 1989-06-15
DE3409935C1 (de) 1985-04-18
ES537521A0 (es) 1985-12-16
YU146186A (en) 1988-06-30
YU187484A (en) 1988-04-30
AU3529884A (en) 1985-05-16
EP0142082A3 (en) 1985-08-21
ZA848756B (en) 1985-07-31
AU2779089A (en) 1989-04-27
JPS60169568A (ja) 1985-09-03
IN163652B (enrdf_load_stackoverflow) 1988-10-22
DD231085A1 (de) 1985-12-18
GR80858B (en) 1985-02-27

Similar Documents

Publication Publication Date Title
EP0142082B1 (de) Verfahren und Einrichtung zum Feuerverzinken von Rippenrohren
US4814210A (en) Process and means for hot-dip galvanizing finned tubes
US4143184A (en) Production of galvanized steel strip
US3828723A (en) Galvanizing apparatus for wire and the like
DE2624069A1 (de) Verfahren und vorrichtung zum kontinuierlichen ueberziehen von werkstuecken
EP1325163B1 (en) Dual-purpose installation for continuous annealing and hot dip plating
EP2389260B1 (de) Verfahren und vorrichtung zum glühen und entzundern von band aus nichtrostendem stahl
DE69303118T2 (de) Verfahren zur kontinuierlichen Herstellung von mit Metall plattierten Stahlrohren durch Plattierungsbehandlung mittels Schmelze
EP1203106B1 (de) Verfahren und anlage zum feuerverzinken von warmgewalztem stahlband
EP1261751B1 (de) Verfahren und anlage zum feuerbeschichten von metallischen bändern
EP2807280A1 (de) Verfahren zum veredeln einer metallischen beschichtung auf einem stahlband
DE3720965C2 (enrdf_load_stackoverflow)
DE2516621A1 (de) Verfahren zum beschichten eines stahlrohrs mit geringem durchmesser mit einem metall
DE2705420A1 (de) Verfahren und vorrichtung zum aufspruehen einer beschichtung aus geschmolzenem metall auf eine fortlaufende bahn
DE2105661A1 (en) Hot dip metal coating - with melt flow along workpiece surface
DE2141663C3 (de) Verfahren und Vorrichtung zum Beschichten von Stahlbändern mit Aluminium
JPH0688193A (ja) 合金化溶融亜鉛めっき鋼板の製造方法
DE8332419U1 (de) Einrichtung zum feuerverzinken von rippenrohren
DE1521376A1 (de) Verfahren zum kontinuierlichen Feuerverzinken von Stahlbaendern mit hoechster Tiefziehfaehigkeit
DE709181C (de) Verfahren zum Vorbehandeln von Metallkoerpern vor dem schmelzfluessigen UEberziehen mit anderen Metallen
DE3035000A1 (de) Vorrichtung zum kontinuierlichen verzinken von kaltgewalztem stahlband
JP2006283109A (ja) 溶融亜鉛めっき鋼板の製造方法
DE2141663B2 (de) Verfahren und Vorrichtung zum Beschichten von Stahlbändern mit Aluminium
CN85101758A (zh) 翼形管热镀锌工艺和装置
JPH06336663A (ja) 鋼帯の連続溶融金属めっき方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

ITCL It: translation for ep claims filed

Representative=s name: RICCARDI SERGIO & CO.

EL Fr: translation of claims filed
TCNL Nl: translation of patent claims filed
RTI1 Title (correction)
AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19850828

17Q First examination report despatched

Effective date: 19860414

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 43646

Country of ref document: AT

Date of ref document: 19890615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3478474

Country of ref document: DE

Date of ref document: 19890706

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19891031

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19900409

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900412

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900417

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19900419

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900423

Year of fee payment: 6

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19901012

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19901025

Ref country code: AT

Effective date: 19901025

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19901026

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19901031

Ref country code: CH

Effective date: 19901031

Ref country code: BE

Effective date: 19901031

BERE Be: lapsed

Owner name: HOESCH A.G.

Effective date: 19901031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19910501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19941107

Year of fee payment: 11

EUG Se: european patent has lapsed

Ref document number: 84112869.7

Effective date: 19910603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960702