EP1570097A1 - Alliage fer-nickel-cobalt, son procede de production et son utilisation - Google Patents

Alliage fer-nickel-cobalt, son procede de production et son utilisation

Info

Publication number
EP1570097A1
EP1570097A1 EP03767638A EP03767638A EP1570097A1 EP 1570097 A1 EP1570097 A1 EP 1570097A1 EP 03767638 A EP03767638 A EP 03767638A EP 03767638 A EP03767638 A EP 03767638A EP 1570097 A1 EP1570097 A1 EP 1570097A1
Authority
EP
European Patent Office
Prior art keywords
max
mass
iron
nickel
alloy according
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.)
Granted
Application number
EP03767638A
Other languages
German (de)
English (en)
Other versions
EP1570097B1 (fr
Inventor
Bodo Gehrmann
Janine Lindemann
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.)
VDM Metals GmbH
Original Assignee
ThyssenKrupp VDM GmbH
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 ThyssenKrupp VDM GmbH filed Critical ThyssenKrupp VDM GmbH
Publication of EP1570097A1 publication Critical patent/EP1570097A1/fr
Application granted granted Critical
Publication of EP1570097B1 publication Critical patent/EP1570097B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0733—Aperture plate characterised by the material

Definitions

  • Iron-nickel-cobalt alloy process for producing and using the same
  • the invention relates to an iron-nickel-cobalt alloy.
  • Iron-based alloys with around 36% nickel have been used for shaped shadow masks in monitors and televisions for several years due to their small coefficients of thermal expansion between 20 and 100 ° C.
  • Technical iron-nickel alloys with about 36% nickel have a thermal expansion coefficient between 1, 2 and 1, 8 x 10 "6 / K in the temperature range from 20 to 100 ° C, as they prevail in conventional display tubes, in the soft-annealed state, as described in the steel-iron material sheet (SEW-385, 1991 edition).
  • the aim of the subject matter of the invention is therefore to provide a material for shadow masks which enables an even smaller average thermal expansion coefficient between 20 and 100 ° C than that iron-nickel alloys available today with approximately 36% nickel. Furthermore, a material variant with a relatively low thermal expansion but increased mechanical strength is to be produced.
  • the first goal of a particularly low thermal expansion is achieved according to the invention by an iron-nickel-cobalt alloy for shadow masks for use in large flat monitors and screens, the chemical composition (in% by mass) being defined by 32.5
  • the second goal is achieved by an iron-nickel-cobalt alloy for shadow masks for use in large flat monitors and screens, the chemical composition (in% by mass) being defined by 32.5
  • the iron-nickel-cobalt alloy described is melted in an arc furnace or vacuum induction furnace and cast in the form of blocks.
  • a process e.g. VAR
  • VAR vacuum induction furnace
  • Preferred fields of application of this alloy are frames of shadow masks for use in display tubes as well as mirror mounts and frames in lithography devices for chip production.
  • Table 1 shows exemplary chemical compositions for iron-nickel-cobalt alloys (E1, E2, E3, E4) according to the invention in comparison to another iron-nickel-cobalt alloy (U1) investigated and in comparison to exemplary ones from the prior art iron-nickel alloys with about 36% nickel (T1, T2, T3) with their average thermal expansion coefficients between 20 and 100 ° C.
  • Table 1 Exemplary chemical compositions (in mass%) for the iron-nickel alloys E1, E2, E3, E4 according to the invention, the alloys U1 investigated and the alloys in the prior art T1, T2, T3 with indication of the average coefficient of thermal expansion between 20 ° C and 100 ° C.
  • the material variants E5 and E6 of the alloy according to the invention achieve a yield strength Rp0.2 which is about 10 to 20% higher than that of the prior art alloy T2.
  • An increase in mechanical strength was achieved by alloying 0.30% Mo and 0.047% C (E5) and 0.036% C (E6).
  • the alloy E5 according to the invention also achieves a low coefficient of expansion of 0.45 x 10 " ⁇ / K between 20 and 100 ° C, so that with the alloy E5 a combination of increased strength and low thermal expansion was achieved In these alloys according to the invention, very low Mn and Si contents are decisive for achieving the technological properties.
  • Further advantageous alloy variants according to the invention contain an Nb content instead of or in combination of the Mo and C contents mentioned between 0.02 and 0.3%. With the stated Nb content, in addition to a further increase in mechanical strength at room temperature, improved thermal and creep resistance at higher temperatures is also achieved.
  • Table 2 Exemplary chemical compositions (in% by mass) for the iron-nickel alloys E5 and E5 according to the invention compared to the alloy according to the prior art T2 with indication of the average coefficient of thermal expansion between 20 ° C. and 100 ° C. and the mechanical yield point Rp0, 2 after a heat treatment of 14 minutes at 790 ° C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

L'invention concerne un alliage fer-nickel-cobalt, destiné à des masques d'ombre utilisés dans des moniteurs et des écrans plats, de grandes dimensions. Ledit alliage présente la composition chimique suivante (en % en poids ): 32,5 - 34,5 % de Ni, 3,0 - 4,5 % de Co, au maximum 0,1 % de Mo, au maximum 0,1 % de Cr, au maximum 0,01 % de C, au maximum 0,05 % de Mn, au maximum 0,1 % de Si, au maximum 0,03 % d'Al, le reste étant constitué de fer et d'impuretés liées à la fabrication.
EP03767638A 2002-12-12 2003-11-25 Utilisation d'une alliage de fer-nickel-cobalt Expired - Lifetime EP1570097B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10258356A DE10258356B3 (de) 2002-12-12 2002-12-12 Verwendung einer Eisen-Nickel-Cobalt-Legierung
DE10258356 2002-12-12
PCT/EP2003/013207 WO2004053179A1 (fr) 2002-12-12 2003-11-25 Alliage fer-nickel-cobalt, son procede de production et son utilisation

Publications (2)

Publication Number Publication Date
EP1570097A1 true EP1570097A1 (fr) 2005-09-07
EP1570097B1 EP1570097B1 (fr) 2009-08-26

Family

ID=32185960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03767638A Expired - Lifetime EP1570097B1 (fr) 2002-12-12 2003-11-25 Utilisation d'une alliage de fer-nickel-cobalt

Country Status (7)

Country Link
EP (1) EP1570097B1 (fr)
JP (1) JP2006509906A (fr)
KR (1) KR20050085524A (fr)
CN (1) CN100523261C (fr)
AU (1) AU2003292099A1 (fr)
DE (3) DE10258356B3 (fr)
WO (1) WO2004053179A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006005252B4 (de) * 2006-02-02 2010-10-28 Thyssenkrupp Vdm Gmbh Formbauteil aus einer Eisen-Nickel-Kobalt-Legierung
ES2379579T3 (es) * 2008-05-08 2012-04-27 Thyssenkrupp Vdm Gmbh Aleación de hierro y níquel
CN100537818C (zh) * 2008-05-29 2009-09-09 钢铁研究总院 一种具有高磁感低频率温度系数的恒弹性合金
TWI426186B (zh) * 2011-12-20 2014-02-11 Metal Ind Res & Dev Ct Low thermal expansion screw
CN106269867A (zh) * 2015-06-08 2017-01-04 丹阳市凯鑫合金材料有限公司 一种成本较低且效率较高的殷钢方锭热轧制作管坯的方法
CN107739998B (zh) * 2017-10-16 2019-06-21 攀钢集团江油长城特殊钢有限公司 一种冷轧薄板的制备方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH155830A (de) * 1931-01-12 1932-07-15 Res Inst Of Iron Steel & Other Legierung mit niedrigem Ausdehnungskoeffizienten.
US4066117A (en) * 1975-10-28 1978-01-03 The International Nickel Company, Inc. Spray casting of gas atomized molten metal to produce high density ingots
EP0567989B1 (fr) * 1992-04-27 1997-07-09 Hitachi Metals, Ltd. Masque d'ombre à feuille mince, sa méthode de fabrication et tube à rayons cathodiques pourvu d'un tel masque
FR2728724B1 (fr) * 1994-12-27 1997-01-24 Imphy Sa Procede de fabrication d'un masque d'ombre en alliage fer-nickel
FR2733767B1 (fr) * 1995-05-05 1997-06-06 Imphy Sa Alliage fe-co-ni et utilisation pour la fabrication d'un masque d'ombre
US20020043306A1 (en) * 1995-05-05 2002-04-18 Imphy S.A. Fe-Co-Ni alloy and use for the manufacture of a shadow mask
FR2745298B1 (fr) * 1996-02-27 1998-04-24 Imphy Sa Alliage fer-nickel et bande laminee a froid a texture cubique
JP2000319762A (ja) * 1999-05-07 2000-11-21 Sumitomo Metal Ind Ltd 低熱膨張合金
JP2001049395A (ja) * 1999-08-11 2001-02-20 Hitachi Metals Ltd エッチング性および低熱膨張特性に優れたＦｅ−Ｎｉ−Ｃｏ系合金およびエッチング孔内郭形状の円滑性に優れたシャドウマスク
JP2001181796A (ja) * 1999-12-28 2001-07-03 Hitachi Metals Ltd エッチング性および低熱膨張特性に優れたＦｅ−Ｎｉ−Ｃｏ系合金およびエッチング孔形状性に優れたシャドウマスク
TWI250216B (en) * 2000-02-09 2006-03-01 Nippon Mining Co Ltd Fe-Ni-Co alloy for completely flat mask of press-formed type, and completely flat mask and color cathode-ray tube using the same
JP3542024B2 (ja) * 2000-03-17 2004-07-14 日立金属株式会社 高強度低熱膨張Ｆｅ−Ｎｉ系合金およびシャドウマスク、リードフレーム
EP1134300A3 (fr) * 2000-03-17 2002-05-22 Hitachi Metals, Ltd. Alliage Fer-Nickel
JP2001342546A (ja) * 2000-05-31 2001-12-14 Toshiba Corp シャドウマスク用材料およびそれを用いたシャドウマスク

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004053179A1 *

Also Published As

Publication number Publication date
DE10262032B4 (de) 2006-08-24
DE10262032A1 (de) 2005-01-20
AU2003292099A1 (en) 2004-06-30
CN1726296A (zh) 2006-01-25
KR20050085524A (ko) 2005-08-29
DE10258356B3 (de) 2004-05-27
WO2004053179A1 (fr) 2004-06-24
JP2006509906A (ja) 2006-03-23
DE50311857D1 (de) 2009-10-08
CN100523261C (zh) 2009-08-05
EP1570097B1 (fr) 2009-08-26

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