GB995762A - Low temperature annealing of metallic coated ferrous sheet and strip and atmosphere therefor - Google Patents

Low temperature annealing of metallic coated ferrous sheet and strip and atmosphere therefor

Info

Publication number
GB995762A
GB995762A GB3430361A GB3430361A GB995762A GB 995762 A GB995762 A GB 995762A GB 3430361 A GB3430361 A GB 3430361A GB 3430361 A GB3430361 A GB 3430361A GB 995762 A GB995762 A GB 995762A
Authority
GB
United Kingdom
Prior art keywords
strip
coated
iron
sheet
box anneal
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
GB3430361A
Inventor
Charles Walter Beattie
Eli Komnenovich
Hart Fisher Graff
Arba Harold Thomas
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.)
Armco Inc
Original Assignee
Armco Inc
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 Armco Inc filed Critical Armco Inc
Priority to GB3430361A priority Critical patent/GB995762A/en
Publication of GB995762A publication Critical patent/GB995762A/en
Expired 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0478—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular surface treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

The drawing qualities of metallic coated low carbon (max. 0.1%) iron or steel sheet or strip are improved, and the non-ageing properties restored, by subjecting the coated sheet or strip to a box anneal at 400-850 DEG F. for at least 4 hours, the temperature employed being such that the coating metal will not alloy with the iron or steel base material or form additional alloys not already present on the coated sheet or strip. The box anneal may be conducted prior to any cold rolling or roller levelling for producing desired temper and flatness. In particular, the box anneal is carried out at a maximum soaking temperature of 500 DEG F. for teme plate, 550 DEG F. for zinc coated, 650 DEG F. for aluminium and Al-Si coated, 750 DEG F. for Zn alloy coated, and 850 DEG F. for Al and Al-Si alloy coated iron or steel sheet or strip. For zinc or Zn-Fe coatings, the box anneal is conducted in a protective atmosphere e.g. consisting of 4-8% H2 by volume and balance N2, or dissociated ammonia gas, or by volume 9% CO, 6% CO2, 12% H2 and balance N2.
GB3430361A 1961-07-25 1961-07-25 Low temperature annealing of metallic coated ferrous sheet and strip and atmosphere therefor Expired GB995762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3430361A GB995762A (en) 1961-07-25 1961-07-25 Low temperature annealing of metallic coated ferrous sheet and strip and atmosphere therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3430361A GB995762A (en) 1961-07-25 1961-07-25 Low temperature annealing of metallic coated ferrous sheet and strip and atmosphere therefor

Publications (1)

Publication Number Publication Date
GB995762A true GB995762A (en) 1965-06-23

Family

ID=10363955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3430361A Expired GB995762A (en) 1961-07-25 1961-07-25 Low temperature annealing of metallic coated ferrous sheet and strip and atmosphere therefor

Country Status (1)

Country Link
GB (1) GB995762A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861249A (en) * 1984-10-18 1989-08-29 National Research Development Corporation Apparatus for thermally treating tape

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861249A (en) * 1984-10-18 1989-08-29 National Research Development Corporation Apparatus for thermally treating tape

Similar Documents

Publication Publication Date Title
CN116732516A (en) Hot stamping forming member, precoated steel sheet for hot stamping forming, and hot stamping forming process
GB1496398A (en) Method of preparing a low alloy steel surface for hot dip metallic coating
US2570906A (en) Process for coating metallic objects with other metals
GB1450131A (en) Method for manufacturing a steel sheet
ZA952686B (en) Aluminized steel alloys containing chromium and method for producing same
AU586635B2 (en) Process for controlling snout zinc vapor in a hot dip zinc based coating on a ferrous base metal strip
CA2037316C (en) Cold-rolled steel sheets or hot-dip galvanized cold-rolled steel sheets for deep drawing
CA2142096A1 (en) Method of hot-dip-zinc-plating high-tension steel plate reduced in unplated portions
GB2085331A (en) Process for producing cold rolled steel strip useful for motor vehicles
CN106661707A (en) Surface-finished steel sheet and method for the production thereof
GB1393175A (en) Low-carbon steel sheets with magnetic properties
GB995762A (en) Low temperature annealing of metallic coated ferrous sheet and strip and atmosphere therefor
JPH06256903A (en) Galvannealed steel sheet excellent in press workability and plating peeling resistance
UA127211C2 (en) A press hardening method
JPS56294A (en) Tinplate and producing the same
GB1125965A (en) Zinc coating and a method of applying same
Satoh et al. Development of Bake-Hardening High-Strength Cold-Rolled Sheet Steels for Automobile Exposed Panels[[Previously Titled: Development of Bake-Hardening High Strength Cold-Rolled Sheet Steels for Automobile Exposed Panels.]]
US2960421A (en) Elimination of white layer in nitrided steel
US3149928A (en) Soft, ductile, galvanized material
DE19646362C2 (en) Process for the heat treatment of ZnAl hot-dip coated thin sheet
GB856182A (en) Improvements relating to the production of lacquered sheets
GB723480A (en) Improvements in or relating to aluminum coating of steel
RU2082767C1 (en) Method of annealing zinc-coated thin steel strip
US3653990A (en) Method for improving steel for carbonated beverage containers
GB1117322A (en) Process for producing extremely low carbon thin iron sheet