GB954367A - Method of and apparatus for hot-dip metallising of metal strips - Google Patents

Method of and apparatus for hot-dip metallising of metal strips

Info

Publication number
GB954367A
GB954367A GB2447160A GB2447160A GB954367A GB 954367 A GB954367 A GB 954367A GB 2447160 A GB2447160 A GB 2447160A GB 2447160 A GB2447160 A GB 2447160A GB 954367 A GB954367 A GB 954367A
Authority
GB
United Kingdom
Prior art keywords
strip
melt
intermediate layer
impurities
metal
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
GB2447160A
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.)
Rasselstein AG
Original Assignee
Rasselstein 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 Rasselstein AG filed Critical Rasselstein AG
Publication of GB954367A publication Critical patent/GB954367A/en
Expired legal-status Critical Current

Links

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
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/08—Tin or alloys based thereon
    • 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
    • C23C2/22—Removing excess of molten coatings; Controlling or regulating the coating thickness by rubbing, e.g. using knives, e.g. rubbing solids
    • 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

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)

Abstract

In a method of hot-dip metallizing metal strip, an intermediate metal layer is applied to the strip, the layer is melted in an inert or reducing atmosphere, a flux (preferably gaseous) is applied to the strip, the strip is passed through a metal melt, dissolved impurities floating away where the strip enters the melt and being continuously removed, and the coated strip issuing from the melt being run through squeezing rolls in a protective atmosphere. Fig. 1 shows a complete coating apparatus in which strip 17 is unwound from reel 1 on to reel 16 and passes successively through welder 2, retarder 3, pickling tank 4, brushing and washing device 5, galvanizing plant 6 for applying the intermediate layer, brushing and washing device 7, furnace 8 in which the intermediate layer is melted, coating metal melt 10, squeezing rolls 11, cooling duct 12, tank 13 for passivating the strip, and drying duct 14. Fig. 3 shows an arrangement for fluxing the strip and removing impurities, in which strip 17 bearing intermediate layer 18 passes through furnace 8 in which heaters 9 melt the layer, flux such as gaseous hydrogen chloride issuing from ducts 22 and impurities 20 floating away on metal melt 10 to be removed continuously by rotating rollers 28 which co-operate with asbestos scrapers 29 and collecting boxes 30. In alternative arrangements, (i) the impurities overflow into collecting boxes which dip into melt 10, Fig. 4 (not shown), and (ii) as shown in Fig. 5, strip 17 runs upwards through furnace 8a in which intermediate layer 18 is melted, flux being supplied through ducts 38, molten coating metal through pipes 40, and impurities 20 floating off into collecting boxes 39. Steel strip may be <PICT:0954367/C3/1> <PICT:0954367/C3/2> <PICT:0954367/C3/3> provided with a tin intermediate layer to receive a final coating of tin or lead, or may be coated with aluminium using an intermediate layer of zinc.
GB2447160A 1959-07-29 1960-07-13 Method of and apparatus for hot-dip metallising of metal strips Expired GB954367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST15398A DE1227754B (en) 1959-07-29 1959-07-29 Method and device for molten coating of metal strips, in particular iron strips, with metal, in particular with tin

Publications (1)

Publication Number Publication Date
GB954367A true GB954367A (en) 1964-04-08

Family

ID=7456684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2447160A Expired GB954367A (en) 1959-07-29 1960-07-13 Method of and apparatus for hot-dip metallising of metal strips

Country Status (3)

Country Link
BE (1) BE593118A (en)
DE (1) DE1227754B (en)
GB (1) GB954367A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001064970A2 (en) * 2000-03-01 2001-09-07 Sms Demag Aktiengesellschaft Method and installation for hot dip coating metal strips
CN109355650A (en) * 2018-11-16 2019-02-19 东阿县亿科板业有限公司 Strip continuous hot galvanizing is passivated material-saving disk

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073415A (en) * 1986-05-15 1991-12-17 Union Carbide Coatings Service Technology Corporation Apparatus for coating an iron based metal with a liquid protective metal and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325668C (en) * 1912-11-30 1920-09-15 Evan Arthur Atkins Process for coating products (sheet metal, wire or strip) made of iron and steel with another metal (e.g. zinc or tin)
DE461523C (en) * 1925-05-07 1928-06-22 American Mach & Foundry Device for coating metals in the immersion process
DE667146C (en) * 1936-06-27 1938-11-05 Rolf Haarmann Dr Ing Process for the mechanical galvanizing of elongated objects, in particular of steel strips and sheets
US2224578A (en) * 1939-02-16 1940-12-10 Wean Engineering Co Inc Method and apparatus for coating strip or the like
DE877401C (en) * 1942-08-22 1953-05-21 Stahl Und Walzwerke Rasselstei Use of the known electrical resistance or inductive heating to improve the solderability of tin-plated iron sheets
DE945424C (en) * 1951-03-23 1956-07-05 Stahl Und Walzwerke Rasselstei Process for melting the tin layer of galvanically tinned iron strips or sheets
GB814174A (en) * 1955-08-23 1959-06-03 Stahl & Walzwerke Rasselstein Tin-coating process
DE1046976B (en) * 1956-11-02 1958-12-18 Trierer Walzwerk Ag Process for galvanic tinning of steel strips and sheets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001064970A2 (en) * 2000-03-01 2001-09-07 Sms Demag Aktiengesellschaft Method and installation for hot dip coating metal strips
WO2001064970A3 (en) * 2000-03-01 2001-12-20 Sms Demag Ag Method and installation for hot dip coating metal strips
US6811827B2 (en) 2000-03-01 2004-11-02 Sms Demag Ag Method and installation for hot dip coating metal strips
CN109355650A (en) * 2018-11-16 2019-02-19 东阿县亿科板业有限公司 Strip continuous hot galvanizing is passivated material-saving disk

Also Published As

Publication number Publication date
DE1227754B (en) 1966-10-27
BE593118A (en) 1960-11-14

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