WO2000073526A1 - Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression - Google Patents

Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression Download PDF

Info

Publication number
WO2000073526A1
WO2000073526A1 PCT/JP1999/002856 JP9902856W WO0073526A1 WO 2000073526 A1 WO2000073526 A1 WO 2000073526A1 JP 9902856 W JP9902856 W JP 9902856W WO 0073526 A1 WO0073526 A1 WO 0073526A1
Authority
WO
WIPO (PCT)
Prior art keywords
less
steel sheet
band
steel
heat shrink
Prior art date
Application number
PCT/JP1999/002856
Other languages
English (en)
Japanese (ja)
Inventor
Nobuo Yamagami
Kunikazu Tomita
Yasuyuki Takada
Yoshihiko Oda
Chohachi Sato
Teruo Takeuchi
Ichiro Saito
Hiroaki Kato
Original Assignee
Nkk Corporation
Sony Corporation
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
Priority to JP02631498A priority Critical patent/JP3393053B2/ja
Priority claimed from JP02631498A external-priority patent/JP3393053B2/ja
Application filed by Nkk Corporation, Sony Corporation filed Critical Nkk Corporation
Priority to US09/744,139 priority patent/US6554917B1/en
Priority to EP99922569A priority patent/EP1114880A4/fr
Priority to KR1020017001094A priority patent/KR20010106417A/ko
Priority to PCT/JP1999/002856 priority patent/WO2000073526A1/fr
Publication of WO2000073526A1 publication Critical patent/WO2000073526A1/fr

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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • 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
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si 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
    • H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers
    • 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
    • C21D8/0226—Hot rolling
    • 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
    • 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
    • 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
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/003—Preventing or cancelling fields entering the enclosure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/87—Means for avoiding vessel implosion
    • H01J2229/875—Means substantially covering the output face, e.g. resin layers, protective panels

Definitions

  • the present invention relates to a steel plate applied to a heat shrink band for tightening around a panel portion in a color cathode ray tube such as a television, and more particularly to a steel plate for a heat shrink band having a small color shift.
  • such a heat shrink band also has a function of shielding the terrestrial magnetism as well as the internal magnetic shield. It has a function to prevent it.
  • An object of the present invention is to provide a steel sheet for a heat shrink band which has a small geomagnetic drift and a small color shift while maintaining a tension equal to or higher than that of a conventional steel sheet.
  • a yield stress is 24 kg / mm 2 or more, and a product of a magnetic permeability ⁇ and a sheet thickness in a magnetic field of 0.3 Oe is 400 or more, Fewer heat shrink band steel sheets are provided.
  • C 0.005% or less
  • N 0.005% or less
  • P 0.1% or less
  • S 0.02% or less
  • Si 0% by weight. 2% or more, 3.0% or less
  • Mn 1.0% or less
  • A1 1.0% or less
  • yield stress of 24 kg / mm 2 or more and 0.3 Oe magnetic field
  • the product of the heat shrink band with little color shift characterized in that the product of the magnetic permeability ⁇ and the sheet thickness in the sheet is 400 or more.
  • the present inventors have obtained the following findings as a result of repeated studies for achieving the above object.
  • FIG. 1 is a diagram showing the relationship between the product of the magnetic permeability / z and the plate thickness in a magnetic field of 0.30 e and the geomagnetic drift property
  • Figure 2 shows the relationship between the Si content of the steel sheet and the magnetic permeability ⁇ ⁇ ⁇ ⁇ at a magnetic field of 0.30 e.
  • Fig. 3 is a diagram showing the relationship between the Si content of the steel sheet and the geomagnetic drift property
  • Fig. 4 is a diagram showing the relationship between the Si content of the steel plate and the yield stress (YS).
  • Figure 1 shows C: 0.003%, Si: 1.35%, Mn: 0.20%, P: 0.05%, S: 0.003%, A1: 0.20%, N : 0.002% steel having a composition of 2% is melted in a laboratory, then hot-rolled, then cold-rolled to 0.8-1.2mmt, 500 ° (: annealing at 90 ° C for up to 800 ° C for 90 seconds) After the application, the band was processed into a band of a predetermined shape, heated to 500 ° C, fitted to a 29-inch TV cathode ray tube panel, and evaluated for geomagnetic drift properties.
  • mild steel as conventional steel C: 0.035%, Si: 0.02%, Mn: 0.20%, P: 0.03%, S: 0.01%, A1: 0. 02%, N: 0.0027%), cold-rolled to 1.2 mm t, annealed at 600 ° C, band-processed, and shrink-fitted under the same conditions to obtain geomagnetic drift properties. An evaluation was performed.
  • the horizontal axis in the figure is the permeability measured at 0.30 e, an external magnetic field equivalent to geomagnetism, measured after applying a heat treatment equivalent to shrink fitting to a ring specimen taken from the annealed plate before shrink fitting.
  • the product of the thickness and the sheet thickness t // is the value of Xt.
  • Bh and Bv on the vertical axis indicate the drift amount of the landing point of the electron beam.
  • 0.350 e for CRT With the vertical magnetic field and the horizontal magnetic field of 0.30 e applied, the CRT was rotated 360 °, and the displacement (landing error) of the landing point of the electron beam with respect to the reference point was measured.
  • the value of the beak was taken as the horizontal drift amount Bh.
  • the horizontal magnetic field was set as OOe, and the landing error when the vertical magnetic field was changed from 0 ⁇ 6 to 0.35 ⁇ e was measured as the vertical drift amount Bv.
  • the drift amount of the landing error on the vertical axis is shown as a relative value when the above-mentioned mild steel value is set to 1.
  • Figure 2 shows C: 0.002%, Mn: 0.24%, P: 0.02%, S: 0.003%, A1: 0.22%, N: 0.0028%, and S i
  • Fig. 3 is a graph showing the value of the magnetic permeability at 0.3 Oe of the band material of 1.01111111: when the amount is changed, and Fig. 3 similarly shows the amount of geomagnetic drift when the Si is changed.
  • FIG. Up to 2% Si increasing Si increases the permeability of the material and consequently reduces the amount of geomagnetic drift. In particular, when the Si content is 0.2% or more, the geomagnetic drift amount is superior to conventional steel.
  • Fig. 4 shows the relationship between the yield strength and the Si content of the above-mentioned steel. Yield strength increases with the amount of S i is increased, the 24 k gf / mm 2 or more is the intensity of conventional steel by the addition of 2% or more 0.5.
  • yield stress is 24 kg / mm 2 or more, by the product of the contact Keru permeability // and the plate thickness on the magnetic field of 0. 3 Oe is defined as more than 400, maintaining the conventional equivalent strength While it effectively prevents color misregistration, the preferred composition range is% by weight, C: 0.005% or less, N: 0.005% or less, P: 0.1% or less, S: : 0.02% or less, S i: 0.2% or more and 3.0% or less, Mn: 1.0% or less, s 01. A1: 1.0% or less.
  • the preferable range of the component is defined as described above will be described.
  • S i is the most important component in the present invention.
  • Si By adding Si, it is possible to increase the magnetic permeability while increasing the strength by solid solution strengthening.
  • Such strength / permeability balance is excellent when Si is contained at 0.2% or more, and the strength and permeability are higher than those of conventional steel.
  • Si exceeds 3%, workability is remarkably reduced, so that 3% or less is preferable.
  • the Si amount at which the drift amount is significantly improved is more preferably 1% or more and 2% or less.
  • C is an element that contributes to the strengthening of the steel sheet. However, C is more unfavorable for the magnetic permeability. It is preferably 005% or less.
  • Mn is preferably added at 0.1% or more to improve hot ductility. However, if added in excess of 1.0%, the magnetic permeability will deteriorate, so it is preferably 1.0% or less.
  • P is an element that contributes to the strengthening of the steel sheet, and may be added as necessary. However, if the content exceeds 0.2%, the steel sheet becomes brittle and causes problems such as coil breakage during cold rolling. Therefore, the content is preferably 0.2% or less.
  • S is not preferable for both hot ductility and magnetic permeability, and is preferably 0.02% or less from the viewpoint of not adversely affecting these.
  • sol. Al sol. A1 deteriorates workability.
  • the content is preferably 1.0% or less.
  • N is an element that is not desirable for magnetic permeability more than contributing to the strengthening of the steel sheet. To prevent this adverse effect, its content is preferably set to 0.005% or less. .
  • the heat shrink band may be subjected to plating from the viewpoint of corrosion resistance. Even in this case, if the characteristics before plating satisfy the range of the present invention, the desired characteristics can be obtained. .
  • test steels in Table 1 After smelting the test steels in Table 1, they were reheated to 1200 ° C and hot rolled to a plate thickness of 3.2 mm at a finishing temperature of 820 ° C and a winding temperature of 680 ° C. The obtained hot rolled sheet was pickled, cold rolled to a sheet thickness of 0.8 to 1.2 mm, and then annealed at 700 ° C for 90 seconds. These steel sheets were further heated at 500 ° C for 5 seconds, equivalent to heat shrink, and air-cooled to room temperature, and then yield stress and DC magnetic properties (when excited to a magnetic permeability of 0.30 e and 0.5 T Coercivity Force) was measured.
  • Test steels ⁇ ⁇ to ⁇ ⁇ whose test steel components are within the above preferred ranges are steels of the present invention satisfying a yield stress of YS ⁇ 24 kgf / mm ⁇ / xt ⁇ 400, and have a geomagnetic drift lower than that of conventional mild steel sheets. It was confirmed that the value was low.
  • the test steels F to H which are out of the preferable range are comparative steels in which either the yield stress or the magnetic permeability is out of the range of the present invention, and the test steels whose geomagnetic drift property is a conventional mild steel sheet. It was about the same as I, and it was confirmed that the characteristics were not sufficient as a heat shrink band for cathode ray tubes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

L'invention concerne une tôle d'acier pour une bande thermorétractable qui présente un léger défaut de raccord en impression, la limite apparente d'élasticité de cette tôle d'acier étant supérieure ou égale à 24kg/mm2. Cette tôle d'acier possède également un produit de perméabilité magnétique ν et une épaisseur supérieure ou égale à 400, dans un champ magnétique d'environ 0,30e.
PCT/JP1999/002856 1998-01-26 1999-05-28 Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression WO2000073526A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP02631498A JP3393053B2 (ja) 1998-01-26 1998-01-26 色ずれの少ないヒートシュリンクバンド用鋼板
US09/744,139 US6554917B1 (en) 1998-01-26 1999-05-28 Steel sheet for heat shrink band effective for preventing color drift
EP99922569A EP1114880A4 (fr) 1999-05-28 1999-05-28 Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression
KR1020017001094A KR20010106417A (ko) 1999-05-28 1999-05-28 색편차가 적은 열수축 밴드용 강판
PCT/JP1999/002856 WO2000073526A1 (fr) 1998-01-26 1999-05-28 Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP02631498A JP3393053B2 (ja) 1998-01-26 1998-01-26 色ずれの少ないヒートシュリンクバンド用鋼板
PCT/JP1999/002856 WO2000073526A1 (fr) 1998-01-26 1999-05-28 Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression

Publications (1)

Publication Number Publication Date
WO2000073526A1 true WO2000073526A1 (fr) 2000-12-07

Family

ID=14235834

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/002856 WO2000073526A1 (fr) 1998-01-26 1999-05-28 Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression

Country Status (3)

Country Link
EP (1) EP1114880A4 (fr)
KR (1) KR20010106417A (fr)
WO (1) WO2000073526A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1355866A1 (fr) 2000-12-19 2003-10-29 Posco Poudres a propriete antibacterienne et capacite de rayonnement dans l'infrarouge lointain, et plaque en acier dite a emission de bio-ondes revetue de resine renfermant ce type de poudre

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387313A (ja) * 1989-08-30 1991-04-12 Kawasaki Steel Corp 高透磁率鋼板の製造方法
JPH086134B2 (ja) * 1991-03-08 1996-01-24 新日本製鐵株式会社 磁気特性の優れたｔｖブラウン管マスクフレーム用冷延鋼板の製造方法
JPH10214578A (ja) * 1997-01-29 1998-08-11 Sony Corp ヒートシュリンクバンド
JPH11209848A (ja) * 1998-01-26 1999-08-03 Nkk Corp 色ずれの少ないヒートシュリンクバンド用鋼板

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62185828A (ja) * 1986-02-10 1987-08-14 Sumitomo Metal Ind Ltd シヤドウマスク用フレ−ム材の製造方法
US5019191A (en) * 1988-12-22 1991-05-28 Sumitomo Metal Industries, Ltd. Magnetic steel plate for use as a magnetic shielding member and a method for the manufacture thereof
JP3544590B2 (ja) * 1995-09-19 2004-07-21 東洋鋼鈑株式会社 カラー受像管用磁気シールド用素材
SG93282A1 (en) * 1997-01-29 2002-12-17 Sony Corp Heat shrink band steel sheet and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387313A (ja) * 1989-08-30 1991-04-12 Kawasaki Steel Corp 高透磁率鋼板の製造方法
JPH086134B2 (ja) * 1991-03-08 1996-01-24 新日本製鐵株式会社 磁気特性の優れたｔｖブラウン管マスクフレーム用冷延鋼板の製造方法
JPH10214578A (ja) * 1997-01-29 1998-08-11 Sony Corp ヒートシュリンクバンド
JPH11209848A (ja) * 1998-01-26 1999-08-03 Nkk Corp 色ずれの少ないヒートシュリンクバンド用鋼板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1114880A4 *

Also Published As

Publication number Publication date
EP1114880A1 (fr) 2001-07-11
KR20010106417A (ko) 2001-11-29
EP1114880A4 (fr) 2003-03-12

Similar Documents

Publication Publication Date Title
KR100390702B1 (ko) 열수축 밴드용 강판 및 그 제조방법
JP3393053B2 (ja) 色ずれの少ないヒートシュリンクバンド用鋼板
JP3243240B2 (ja) 優れた磁場遮蔽特性を有する薄い冷間圧延内部シールド鋼板を製造する方法
JPH11246945A (ja) 色ずれの少ないヒートシュリンクバンド用メッキ鋼板
WO2000073526A1 (fr) Tole d'acier pour bande thermoretractable avec leger defaut de raccord en impression
US5871851A (en) Magnetic shielding material for television cathode-ray tube and process for producing the same
JP3861003B2 (ja) ヒートシュリンクバンド用鋼板およびその製造方法
WO2003070997A1 (fr) Feuille d'acier pour blindage magnetique interne et son procede de production, blindage magnetique interne, et tube cathodique couleur
JP3888020B2 (ja) ヒートシュリンクバンド用鋼板およびその製造方法
EP1310576A1 (fr) Feuille d'acier destinee a une bande thermoretractable
JPS60255924A (ja) 磁気シ−ルド部材用素材鋼板の製造方法
JP4273657B2 (ja) カラー陰極線管磁気シールド用冷延鋼板
JP2001240946A (ja) 地磁気シールド性に優れた高強度ヒートシュリンクバンド用鋼板およびその製造方法
JP2001032038A (ja) ヒートシュリンクバンド用鋼板およびその製造方法
JP3627840B2 (ja) Ｔｖマスクフレーム用鋼板
JPH10168551A (ja) Ｔｖブラウン管用磁気シールド材およびその製造方法
JPH11286726A (ja) 色ずれの少ないヒートシュリンクバンド用鋼板およびその製造方法
WO2001007669A1 (fr) Tole d'acier pour bande thermoretractable et son procede de production
JP3502760B2 (ja) 焼きばめ作業性に優れたヒートシュリンクバンド用鋼板
KR100451819B1 (ko) 자기차폐성이 우수한 브라운관 수축밴드용 냉연강판 및 그제조방법
JPS60181252A (ja) 消磁特性に優れたａ１キルド冷延鋼板及びその製造方法並びにそれを用いたシヤドウマスク及びカラ−テレビ
EP1154029B1 (fr) Materiau pour masque perfore de tube d'images couleur
JP2001011574A (ja) Ｔｖブラウン管フレーム用熱延鋼板およびその製造方法
WO2003050317A1 (fr) Bande thermoretrecissable, tole d'acier pour bande thermoretrecissable, et procede de production
JP3473739B2 (ja) Ｔｖインナーシールド材

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): KR SG US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 1999922569

Country of ref document: EP

Ref document number: 1020017001094

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 09744139

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1999922569

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020017001094

Country of ref document: KR

WWR Wipo information: refused in national office

Ref document number: 1020017001094

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1999922569

Country of ref document: EP