TW200632974A - Magnetic shielding steel sheet for color cathode-ray tubes - Google Patents

Magnetic shielding steel sheet for color cathode-ray tubes

Info

Publication number
TW200632974A
TW200632974A TW094139450A TW94139450A TW200632974A TW 200632974 A TW200632974 A TW 200632974A TW 094139450 A TW094139450 A TW 094139450A TW 94139450 A TW94139450 A TW 94139450A TW 200632974 A TW200632974 A TW 200632974A
Authority
TW
Taiwan
Prior art keywords
steel sheet
magnetic shielding
al2o3
mno
color cathode
Prior art date
Application number
TW094139450A
Other languages
Chinese (zh)
Inventor
Yoshikazu Yamanaka
Tsutomu Yoshida
Original Assignee
Sumitomo Metal Steel Prod
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 Sumitomo Metal Steel Prod filed Critical Sumitomo Metal Steel Prod
Publication of TW200632974A publication Critical patent/TW200632974A/en

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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14708—Fe-Ni based alloys
    • H01F1/14716—Fe-Ni based alloys in the form of sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/867—Means associated with the outside of the vessel for shielding, e.g. magnetic shields
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

A magnetic shielding cold-rolled steel sheet stably exhibiting a high magnetic permeability even if it contains impurity elements derived from scrap has a composition comprising, by mass %, C: 0.002-0.01%, Si: at most 0.5%, Mn: at most 2.0%, P: at most 0.4%, S: 0.001-0.1%, Al: 0.001-2%, N: at most 0.1%, Ti: at most 0.01%, V: at most 0.01%, Nb: at most 0.01%, Cu: at most 0.4%, Sn: at most 0.2%, Ni: at most 0.1%, Cr: at most 0.1%, Mo: at most 0.1%, and B: at most 0.001%, the inclusions satisfying (1) MnO/(Al2O3+SiO2+MnO+CaO) ≤ 0.5, (2) Al2O3/(Al2O3+SiO2+MnO+CaO) ≤ 0.1, and (3) the total amount of inclusions in the steel ≤ 0.01 mass %. In a steel sheet having a cold rolled structure, the average oblateness of grains is in the range of 0.15-0.5, and in a steel sheet having an annealed structure, the average grain diameter is in the range of 15-40 μm.
TW094139450A 2004-11-11 2005-11-10 Magnetic shielding steel sheet for color cathode-ray tubes TW200632974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004327834 2004-11-11

Publications (1)

Publication Number Publication Date
TW200632974A true TW200632974A (en) 2006-09-16

Family

ID=36336456

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094139450A TW200632974A (en) 2004-11-11 2005-11-10 Magnetic shielding steel sheet for color cathode-ray tubes

Country Status (5)

Country Link
JP (1) JPWO2006051777A1 (en)
KR (1) KR20070084133A (en)
CN (1) CN101052736A (en)
TW (1) TW200632974A (en)
WO (1) WO2006051777A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107058875B (en) * 2017-06-01 2018-06-26 东北大学 A kind of preparation method of 1-5mm thickness High Performance Shielding steel plate
DE102017216982A1 (en) * 2017-09-25 2019-03-28 Thyssenkrupp Ag Monolithic iron-based shielding products

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002012956A (en) * 1997-11-05 2002-01-15 Nippon Steel Corp Cold rolled steel sheet and plated steel sheet both with high strength, superior in shielding property from earth magnetism, and manufacturing method therefor
JP2003089856A (en) * 2001-09-18 2003-03-28 Sumitomo Metal Ind Ltd Steel sheet for magnetic shielding material, and production method therefor

Also Published As

Publication number Publication date
KR20070084133A (en) 2007-08-24
JPWO2006051777A1 (en) 2008-05-29
CN101052736A (en) 2007-10-10
WO2006051777A1 (en) 2006-05-18

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