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GB1373490A - Heat treatment of metal strip - Google Patents

Heat treatment of metal strip

Info

Publication number
GB1373490A
GB1373490A GB5839170A GB5839170A GB1373490A GB 1373490 A GB1373490 A GB 1373490A GB 5839170 A GB5839170 A GB 5839170A GB 5839170 A GB5839170 A GB 5839170A GB 1373490 A GB1373490 A GB 1373490A
Authority
GB
United Kingdom
Prior art keywords
coating
strip
tin
dec
chromium
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
GB5839170A
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.)
British Steel Corp
Original Assignee
British Steel Corp
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 British Steel Corp filed Critical British Steel Corp
Priority to GB5839170A priority Critical patent/GB1373490A/en
Priority to AU36419/71A priority patent/AU3641971A/en
Priority to BE776351A priority patent/BE776351A/en
Priority to IT7101571A priority patent/IT943194B/en
Priority to DE19712160805 priority patent/DE2160805A1/en
Priority to CA129,616A priority patent/CA952199A/en
Priority to NL7116885A priority patent/NL7116885A/xx
Priority to FR7144194A priority patent/FR2117574A5/fr
Publication of GB1373490A publication Critical patent/GB1373490A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/40—Direct resistance heating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

1373490 Coating steel with chromium; tin electro-plating; heat treating strip BRITISH STEEL CORP 7 Dec 1971 [9 Dec 1970 (2)] 58391/70 and 58392/70 Headings C7B C7F and C7N A surface coating on a metal strip is heattreated by scanning it with an energy beam (electron, ion or laser) impinging on a portion of the surface, the beam intensity and dwell time being such that the heating effect is confined to the coating. The two sides of the strip may be treated simultaneously, while the beam may scan in a direction transverse to the direction of strip travel. The process may be used to flow brighten a coating e.g. electrolyte tin plate, or to fuse a coating applied in particulate form e.g. chromium. In a particular embodiment a strip is advanced below a staggered array of electron guns each of which scans transversely one longitudinal zone under such conditions that all of the surface is heated once only. As exemplified a 1 metre wide strip 250 microns thick has a 0À385 micron tin coating and moves at 2À5 m/sec. The target area of each beam is 0À00418 mm<SP>2</SP> and scanning frequency 24500 Hz, with an intensity of 57À2 gigawatts/m<SP>2</SP> and residence time 0À0067 seconds.
GB5839170A 1970-12-09 1970-12-09 Heat treatment of metal strip Expired GB1373490A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB5839170A GB1373490A (en) 1970-12-09 1970-12-09 Heat treatment of metal strip
AU36419/71A AU3641971A (en) 1970-12-09 1971-12-02 Electron beam surface heating
BE776351A BE776351A (en) 1970-12-09 1971-12-07 SURFACE HEATING BY ELECTRON BEAM
IT7101571A IT943194B (en) 1970-12-09 1971-12-07 PROCESS OF TREATMENT TERMI CO SURFACE OF SHEETS
DE19712160805 DE2160805A1 (en) 1970-12-09 1971-12-08 Process for the heat treatment of a surface layer of metal strips
CA129,616A CA952199A (en) 1970-12-09 1971-12-08 Electron beam surface heating
NL7116885A NL7116885A (en) 1970-12-09 1971-12-09
FR7144194A FR2117574A5 (en) 1970-12-09 1971-12-09

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5839270 1970-12-09
GB5839170A GB1373490A (en) 1970-12-09 1970-12-09 Heat treatment of metal strip

Publications (1)

Publication Number Publication Date
GB1373490A true GB1373490A (en) 1974-11-13

Family

ID=26267735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5839170A Expired GB1373490A (en) 1970-12-09 1970-12-09 Heat treatment of metal strip

Country Status (8)

Country Link
AU (1) AU3641971A (en)
BE (1) BE776351A (en)
CA (1) CA952199A (en)
DE (1) DE2160805A1 (en)
FR (1) FR2117574A5 (en)
GB (1) GB1373490A (en)
IT (1) IT943194B (en)
NL (1) NL7116885A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327477A (en) 1980-07-17 1982-05-04 Hughes Aircraft Co. Electron beam annealing of metal step coverage
GB2160227A (en) * 1984-05-04 1985-12-18 John Durham Hawkes Heat treatment process
EP0583793A1 (en) * 1992-08-20 1994-02-23 Kawasaki Steel Corporation Method of irradiating running strip with energy beam

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7216832A (en) * 1972-12-12 1974-06-14
GB1583835A (en) * 1977-03-28 1981-02-04 Avco Everett Res Lab Inc Metal surface modification
DE2824373A1 (en) * 1978-06-03 1979-12-06 Aeg Elotherm Gmbh PROCESS FOR SURFACE HARDENING OF A CAST-IRON WORKPIECE OF LIMITED THERMAL CAPACITY
DE4213632C1 (en) * 1992-04-24 1993-11-11 Fraunhofer Ges Forschung Process for the thermal surface modification of metallic components with electron beams
FR2786790B1 (en) * 1998-12-04 2001-02-23 Ecole Polytech LASER PROCESSING OF AN OBJECT OF SHAPE MEMORY MATERIAL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327477A (en) 1980-07-17 1982-05-04 Hughes Aircraft Co. Electron beam annealing of metal step coverage
GB2160227A (en) * 1984-05-04 1985-12-18 John Durham Hawkes Heat treatment process
EP0583793A1 (en) * 1992-08-20 1994-02-23 Kawasaki Steel Corporation Method of irradiating running strip with energy beam

Also Published As

Publication number Publication date
CA952199A (en) 1974-07-30
IT943194B (en) 1973-04-02
AU465402B2 (en) 1975-09-25
BE776351A (en) 1972-04-04
FR2117574A5 (en) 1972-07-21
NL7116885A (en) 1972-06-13
DE2160805A1 (en) 1972-06-22
AU3641971A (en) 1973-06-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees