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ES8306390A3 - METHOD AND APPARATUS FOR COATING A METALLIC IRON HEATED IN A FURNACE WITH A METALLIC COATING MEDIA. - Google Patents

METHOD AND APPARATUS FOR COATING A METALLIC IRON HEATED IN A FURNACE WITH A METALLIC COATING MEDIA.

Info

Publication number
ES8306390A3
ES8306390A3 ES82512591A ES512591A ES8306390A3 ES 8306390 A3 ES8306390 A3 ES 8306390A3 ES 82512591 A ES82512591 A ES 82512591A ES 512591 A ES512591 A ES 512591A ES 8306390 A3 ES8306390 A3 ES 8306390A3
Authority
ES
Spain
Prior art keywords
hood
coating
furnace
reducing gas
metallic
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
ES82512591A
Other languages
Spanish (es)
Other versions
ES512591A0 (en
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.)
John Lysaght Australia Pty Ltd
Original Assignee
John Lysaght Australia Pty Ltd
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 John Lysaght Australia Pty Ltd filed Critical John Lysaght Australia Pty Ltd
Publication of ES8306390A3 publication Critical patent/ES8306390A3/en
Publication of ES512591A0 publication Critical patent/ES512591A0/en
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • 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
    • C23C2/003—Apparatus
    • C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • 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
    • C23C2/003—Apparatus
    • C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • C23C2/004—Snouts
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

After furnace heating, a continuous rolled ferrous metal product is hot dip metal coated by passing it through a protective hood, the outlet of which dips below the surface of the molten metal coating bath. A still atmos. of reducing gas is maintained within the hood at least near its outlet and reducing gas is introduced into the furnace outlet section in front of the hood, the rate of diffusion of the reducing gas from the furnace outlet section to the hood being limited to a rate no higher than that necessary to maintain a constant gas quantity and compsn. in the hood. The process is useful for hot dip coating ferrous metal strip, wire or rod with aluminium-zinc alloy and avoids the need for a hot reducing atmos., reduces the volume of reducing gas required, reduces the occurrence of defects such as coating-free pits and avoids the formation of zinc or other deposits in the hood.
ES512591A 1980-08-19 1982-05-27 PROCEDURE AND APPARATUS FOR COATING A METALLIC IRON HEATED IN OVEN WITH A METALLIC COATING MEDIA. Granted ES512591A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPE512280 1980-08-19
AU74005/81A AU543013B2 (en) 1980-08-19 1980-08-19 Hot-dip coating of ferrous strands

Publications (2)

Publication Number Publication Date
ES8306390A3 true ES8306390A3 (en) 1983-04-01
ES512591A0 ES512591A0 (en) 1983-04-01

Family

ID=3768649

Family Applications (1)

Application Number Title Priority Date Filing Date
ES512591A Granted ES512591A0 (en) 1980-08-19 1982-05-27 PROCEDURE AND APPARATUS FOR COATING A METALLIC IRON HEATED IN OVEN WITH A METALLIC COATING MEDIA.

Country Status (23)

Country Link
JP (1) JPS5760014A (en)
AR (1) AR226738A1 (en)
AU (1) AU543013B2 (en)
BE (1) BE889991A (en)
BR (1) BR8105280A (en)
CA (1) CA1192101A (en)
DE (1) DE3132120A1 (en)
DK (1) DK160263C (en)
ES (1) ES512591A0 (en)
FR (1) FR2488913A1 (en)
GB (1) GB2082206B (en)
IE (1) IE51782B1 (en)
IN (1) IN156849B (en)
IT (1) IT1171464B (en)
LU (1) LU83562A1 (en)
MX (1) MX156647A (en)
MY (1) MY8500883A (en)
NL (1) NL8103803A (en)
NZ (1) NZ197931A (en)
PH (1) PH16269A (en)
SE (1) SE8104720L (en)
SG (1) SG66784G (en)
ZA (1) ZA815392B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175520A (en) * 1982-04-09 1983-10-14 松下電器産業株式会社 Bevarage maker
US4713154A (en) * 1985-08-08 1987-12-15 Kawasaki Steel Corporation Continuous annealing and pickling method and apparatus for steel strips
JPS62266073A (en) * 1986-05-14 1987-11-18 テルモ株式会社 Apparatus for purifying body fluids
DE3933244C1 (en) * 1989-10-05 1990-06-13 Hoesch Stahl Ag, 4600 Dortmund, De Continuous zinc coating appts. for coating metal strip - comprises melt alloy bath covered with hood having hydrogen, steam and inert gas atmos. and control system
SE9101053L (en) * 1990-04-13 1991-10-14 Centre Rech Metallurgique PROCEDURES FOR COATING A CONTINUOUS STEEL BAND
JP2517169B2 (en) * 1990-10-09 1996-07-24 新日本製鐵株式会社 Method for producing hot dip galvanized steel sheet
FR2782326B1 (en) * 1998-08-13 2000-09-15 Air Liquide METHOD FOR GALVANIZING A METAL STRIP

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3320085A (en) * 1965-03-19 1967-05-16 Selas Corp Of America Galvanizing
SE393403B (en) * 1972-08-09 1977-05-09 Bethlehem Steel Corp WAY TO COVER THE SURFACE OF AN IRON STRING WITH AN AL-ZN ALLOY
JPS5198634A (en) * 1975-02-27 1976-08-31 Kohanno renzokuyojuaenmetsukini okeru maeshoryokangengasuno shoho
JPS51128610A (en) * 1975-05-02 1976-11-09 Nippon Steel Corp A method for reduction of steel strips in reduction furnace of continu ous heat treatment lines for steel plates for plating
JPS51149130A (en) * 1975-06-18 1976-12-21 Nippon Steel Corp Method of producing zincccoated iron plate with good workability
US4183983A (en) * 1978-08-17 1980-01-15 Selas Corporation Of America Method for reducing metal oxide formation on a continuous metal sheet in the hot dip coating thereof
FR2477900A1 (en) * 1980-03-14 1981-09-18 Heurtey Metallurgie METHOD AND DEVICE FOR SEPARATING GASEOUS ATMOSPHERES IN ATMOSPHERE HEAT TREATMENT PLANTS

Also Published As

Publication number Publication date
ZA815392B (en) 1982-08-25
GB2082206A (en) 1982-03-03
IT1171464B (en) 1987-06-10
AU7400581A (en) 1982-02-25
CA1192101A (en) 1985-08-20
FR2488913A1 (en) 1982-02-26
IE811781L (en) 1982-02-19
PH16269A (en) 1983-08-25
AR226738A1 (en) 1982-08-13
BE889991A (en) 1981-12-16
LU83562A1 (en) 1981-12-01
MY8500883A (en) 1985-12-31
AU543013B2 (en) 1985-03-28
MX156647A (en) 1988-09-22
JPS5760014A (en) 1982-04-10
BR8105280A (en) 1982-04-27
DK160263C (en) 1991-07-22
FR2488913B1 (en) 1984-06-29
JPH0338322B2 (en) 1991-06-10
DE3132120A1 (en) 1982-03-25
GB2082206B (en) 1984-05-16
IT8149111A0 (en) 1981-08-13
IT8149111A1 (en) 1983-02-13
SG66784G (en) 1985-03-15
NZ197931A (en) 1984-07-31
DK355581A (en) 1982-02-20
IE51782B1 (en) 1987-04-01
IN156849B (en) 1985-11-16
ES512591A0 (en) 1983-04-01
DK160263B (en) 1991-02-18
SE8104720L (en) 1982-02-20
DE3132120C2 (en) 1989-12-14
NL8103803A (en) 1982-03-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19960603