GB1094748A - Production of silicon-iron sheet stock - Google Patents

Production of silicon-iron sheet stock

Info

Publication number
GB1094748A
GB1094748A GB756865A GB756865A GB1094748A GB 1094748 A GB1094748 A GB 1094748A GB 756865 A GB756865 A GB 756865A GB 756865 A GB756865 A GB 756865A GB 1094748 A GB1094748 A GB 1094748A
Authority
GB
United Kingdom
Prior art keywords
atmosphere
silicon
iron sheet
sheet
production
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
GB756865A
Inventor
Victor William Carpenter
John Martin Jackson
Robert William Squibb
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 GB756865A priority Critical patent/GB1094748A/en
Publication of GB1094748A publication Critical patent/GB1094748A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

Silicon-iron sheet is pickled subsequent to any hot-rolling step, and is then decarburized in a wet atmosphere at 1200 DEG -1500 DEG F., followed without any intervening surface treatment by annealing in a dry non-decarburizing atmosphere at 1400 DEG -1900 DEG F., at least one of the heat-treatment steps being carried out with the sheet in the form of an open coil. Decarburizing may be carried out for 1 to 8 hours in a hydrogen-bearing atmosphere having a dew-point of 90 DEG \sB 20 DEG F., and annealing in a hydrogen-bearing atmosphere of dew-point not higher than 50 DEG F. for 1/2 to 3 hours. When the same furnace is used for both treatments the dry atmosphere should be introduced before the temperature is raised for the anneal. The sheet may finally undergo a flattening anneal at 1300 DEG -1500 DEG F.
GB756865A 1965-02-22 1965-02-22 Production of silicon-iron sheet stock Expired GB1094748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB756865A GB1094748A (en) 1965-02-22 1965-02-22 Production of silicon-iron sheet stock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB756865A GB1094748A (en) 1965-02-22 1965-02-22 Production of silicon-iron sheet stock

Publications (1)

Publication Number Publication Date
GB1094748A true GB1094748A (en) 1967-12-13

Family

ID=9835637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB756865A Expired GB1094748A (en) 1965-02-22 1965-02-22 Production of silicon-iron sheet stock

Country Status (1)

Country Link
GB (1) GB1094748A (en)

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