GB1426150A - Annealing separator composition - Google Patents

Annealing separator composition

Info

Publication number
GB1426150A
GB1426150A GB4454874A GB4454874A GB1426150A GB 1426150 A GB1426150 A GB 1426150A GB 4454874 A GB4454874 A GB 4454874A GB 4454874 A GB4454874 A GB 4454874A GB 1426150 A GB1426150 A GB 1426150A
Authority
GB
United Kingdom
Prior art keywords
steel
annealing separator
mgo
annealing
separator composition
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
GB4454874A
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to GB4454874A priority Critical patent/GB1426150A/en
Publication of GB1426150A publication Critical patent/GB1426150A/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
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • 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
    • C23C24/00—Coating starting from inorganic powder

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)
  • Chemical Treatment Of Metals (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

1426150 Enamelling steel NIPPON STEEL CORP 15 Oct 1974 44548/74 Heading C1M [Also in Division C7] To prevent adjacent surfaces of Si-steel sheets or strip from sticking to one another during annealing, a separator agent comprising 0À01-2% B 2 O 3 in the form of nMgO.B 2 O 3 and at least 90% by wt. MgO is applied in water to the surfaces. During annealing an enamel film of SiO 2 -MgO-FeO-B 2 O 3 is formed on the surfaces. The B 2 O 3 is preferably present as 3MgO.B 2 O 3 and examples disclose the use of the agent in annealing 3% Si-steel for 20 hours at 1200‹ C. in H 2 .
GB4454874A 1974-10-15 1974-10-15 Annealing separator composition Expired GB1426150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4454874A GB1426150A (en) 1974-10-15 1974-10-15 Annealing separator composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4454874A GB1426150A (en) 1974-10-15 1974-10-15 Annealing separator composition

Publications (1)

Publication Number Publication Date
GB1426150A true GB1426150A (en) 1976-02-25

Family

ID=10433810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4454874A Expired GB1426150A (en) 1974-10-15 1974-10-15 Annealing separator composition

Country Status (1)

Country Link
GB (1) GB1426150A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033878A2 (en) * 1980-01-25 1981-08-19 Nippon Steel Corporation Method for treating an electromagnetic steel sheet by laser-beam irradiation
US4875947A (en) * 1987-08-31 1989-10-24 Nippon Steel Corporation Method for producing grain-oriented electrical steel sheet having metallic luster and excellent punching property
WO2009009459A1 (en) 2007-07-10 2009-01-15 Qualcomm Incorporated Methods and apparatus for successive interference cancellation based on rate capping in peer-to-peer networks

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033878A2 (en) * 1980-01-25 1981-08-19 Nippon Steel Corporation Method for treating an electromagnetic steel sheet by laser-beam irradiation
EP0033878A3 (en) * 1980-01-25 1981-09-30 Nippon Steel Corporation An electromagnetic steel sheet treated by laser-beam irradiation and method for treating an electromagnetic steel sheet
EP0087587A1 (en) * 1980-01-25 1983-09-07 Nippon Steel Corporation An electromagnetic steel sheet treated by laser-beam irradiation
US4875947A (en) * 1987-08-31 1989-10-24 Nippon Steel Corporation Method for producing grain-oriented electrical steel sheet having metallic luster and excellent punching property
WO2009009459A1 (en) 2007-07-10 2009-01-15 Qualcomm Incorporated Methods and apparatus for successive interference cancellation based on rate capping in peer-to-peer networks

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19941014