EP0713923B1 - Iron-nickel alloy with low thermal expansion coefficient - Google Patents

Iron-nickel alloy with low thermal expansion coefficient Download PDF

Info

Publication number
EP0713923B1
EP0713923B1 EP95402513A EP95402513A EP0713923B1 EP 0713923 B1 EP0713923 B1 EP 0713923B1 EP 95402513 A EP95402513 A EP 95402513A EP 95402513 A EP95402513 A EP 95402513A EP 0713923 B1 EP0713923 B1 EP 0713923B1
Authority
EP
European Patent Office
Prior art keywords
iron
nickel alloy
alloy
nickel
less
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 - Lifetime
Application number
EP95402513A
Other languages
German (de)
French (fr)
Other versions
EP0713923A1 (en
Inventor
Jacques Baudry
Michel Faral
Jean-François Tiers
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.)
Aperam Stainless Precision SAS
Original Assignee
Imphy Ugine Precision SA
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 Imphy Ugine Precision SA filed Critical Imphy Ugine Precision SA
Publication of EP0713923A1 publication Critical patent/EP0713923A1/en
Application granted granted Critical
Publication of EP0713923B1 publication Critical patent/EP0713923B1/en
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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

Definitions

  • the present invention relates to an iron / nickel alloy with low coefficient of expansion.
  • Iron / Nickel alloys with low coefficient of expansion containing by weight between 35% and 40% of Nickel are well known.
  • Nickel and Iron alloys In addition to Nickel and Iron, these alloys always contain impurities such as Sulfur, Phosphorus, Oxygen, Nitrogen and Carbon resulting from processing. They may also contain elements such as Cobalt, Chromium, Copper, Molybdenum, Vanadium, Niobium and Silicon added in particular to adjust their mechanical properties. But, due to the presence of impurities, these alloys are difficult to deform hot by rolling or forging.
  • the aim of the present invention is to propose an alloy Low Manganese Iron / Nickel with Good Hot Ductility and can be produced by conventional methods.
  • the invention relates to an Iron / Nickel alloy as defined in claim 1.
  • the chemical composition is such that: O ⁇ 0.005% N ⁇ 0.003% S ⁇ 0.0005%
  • the nickel content must be between 35.8% and 36.3% and better still between 35.9% and 36.2% and, Cr ⁇ 0.1%, Cu ⁇ 0.1%, Mo ⁇ 0.1%, V ⁇ 0.1%, Nb ⁇ 0.1%
  • the invention also relates to a strip of iron / nickel alloy according to the invention, obtained by hot and then cold rolling, of width greater than 400 mm and whose coefficient of linear expansion between 20 ° C and 100 ° C is less than 0.9x10 -6 / o K.
  • the alloy according to the invention is an alloy based on Iron and Nickel containing, from 35.5% to 37% of Nickel, possibly elements of complementary alloys such as Cobalt, Chromium, Copper, Molybdenum, Vanadium or Niobium in contents of less than 3%, intended to adjust the mechanical characteristics according to uses.
  • the alloy imperatively contains less than 0.1% and preferably less than 0.05% Manganese because this element increases the coefficient of thermal expansion.
  • Calcium and Magnesium contents are limited to 0.002% to avoid the formation of large inclusions which may cause pitting during chemical cutting, this is particularly the case when the alloy is used in the form of thin strips for the manufacture of shadow masks for cathode ray tubes.
  • the alloy contains less than 0.005% aluminum and less than 0.005% and preferably less than 0.003% nitrogen. He must also contain less than 0.01% and preferably less than 0.005% of Oxygen.
  • the nickel content should preferably be between 35.8% and 36.3%, and better still between 35.9% and 36.2%; the optimal content being 36.05%.
  • Cobalt is an element that can be partially substituted Nickel up to 10%, but this element has disadvantages when the alloy has to undergo a chemical attack for example to make chemical etching, too, its content should preferably be limited to 0.5%, in particular when the alloy is intended to manufacture shadow masks for cathode ray tubes.
  • the alloy When the alloy is used to manufacture thin strips intended for stamping, it must contain less than 0.005 % of Carbon in order to have the lowest possible elasticity limit which is favorable for a good drawing ability. .
  • the hydrogen content must be less than 0.001% and preferably less than 0.0005% to avoid the formation of blisters.
  • the boron content must remain below 0.0004 % in order to avoid the formation of boron nitrides on the surface of the products during heat treatments. These nitrides form a powdery layer which causes poor adhesion of the darkening layer produced on the shadow masks.
  • the rest of the chemical composition of the alloy consists with Iron.
  • This alloy makes it possible to manufacture by hot rolling ingots or slabs, then by cold rolling, thin strips, less than 0.3 mm thick and more than 400 mm wide, used in particular for the manufacture of shadow masks for screens cathodic.
  • the hot rolling was carried out without cracking.
  • the coefficient of expansion was 0.81x10 -6 / o K.
  • the elastic limit E0.2 was 270MPa
  • the coercive field was 0.45 Oe.
  • the tape had very good chemical etching ability. All of these properties made it particularly suitable for the manufacture of shadow masks for cathode ray tubes.
  • the alloy according to the invention can also be used especially in metrology or for the manufacture of bimetallic strips.

Landscapes

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

Description

La présente invention concerne un alliage Fer/Nickel à faible coefficient de dilatation.The present invention relates to an iron / nickel alloy with low coefficient of expansion.

Les alliages Fer/Nickel à faible coefficient de dilatation contenant en poids entre 35% et 40% de Nickel sont bien connus.Iron / Nickel alloys with low coefficient of expansion containing by weight between 35% and 40% of Nickel are well known.

Outre, le Nickel et le Fer, ces alliages contiennent toujours des impuretés tels que le Soufre, le Phosphore, l'Oxygène, l'Azote et le Carbone résultant de l'élaboration. Ils peuvent également contenir des éléments tels que le Cobalt, le Chrome, le Cuivre, le Molybdène, le Vanadium, le Niobium et le Silicium ajoutés notamment pour ajuster leurs propriétés mécaniques. Mais, du fait de la présence d'impuretés, ces alliages sont difficiles à déformer à chaud par laminage ou par forgeage.In addition to Nickel and Iron, these alloys always contain impurities such as Sulfur, Phosphorus, Oxygen, Nitrogen and Carbon resulting from processing. They may also contain elements such as Cobalt, Chromium, Copper, Molybdenum, Vanadium, Niobium and Silicon added in particular to adjust their mechanical properties. But, due to the presence of impurities, these alloys are difficult to deform hot by rolling or forging.

Afin d'améliorer l'aptitude à la déformation à chaud, on ajoute du Manganèse en des teneurs supérieures à 0,2%. Mais cet élément a l'inconvénient d'augmenter sensiblement le coefficient de dilatation.In order to improve the hot deformability, we add Manganese in contents greater than 0.2%. But this element has the disadvantage of significantly increasing the coefficient of expansion.

Dans le brevet américain US 2 050 387 on a proposé un procédé de fabrication d'un alliage Fer/Nickel à bas coefficient de dilatation et bonne forgeabilité à chaud selon lequel on élabore l'alliage en recuisant sous Hydrogène des matières premières de haute pureté à plus de 1150°C pendant 20 h puis en les fondant et en faisant solidifier sous une atmosphère d'Hydrogène. Ce procédé a l'inconvénient d'être compliqué à mettre en oeuvre et très coûteux.In US patent 2,050,387, a process for manufacturing an Iron / Nickel alloy with a low coefficient of expansion and good hot forgeability according to which the alloy is produced by annealing under hydrogen high purity raw materials above 1150 ° C for 20 h then by melting them and solidifying under a hydrogen atmosphere. This process has the disadvantage of being complicated to to implement and very expensive.

Le but de la présente invention est de proposer un alliage Fer/Nickel à faible teneur en Manganèse ayant une bonne ductilité à chaud et pouvant être élaboré par les procédés classiques.The aim of the present invention is to propose an alloy Low Manganese Iron / Nickel with Good Hot Ductility and can be produced by conventional methods.

A cet effet, l'invention a pour objet un alliage Fer/Nickel tel que défini à la revendication 1. To this end, the invention relates to an Iron / Nickel alloy as defined in claim 1.

La composition chimique satisfaisant la relation : S ≤ 0,02 x Mn + 0,8 x Ca + 0,6 x Mg The chemical composition satisfying the relationship: S ≤ 0.02 x Mn + 0.8 x Ca + 0.6 x Mg

De préférence, la composition chimique est telle que : O ≤ 0,005% N ≤ 0,003% S ≤ 0,0005 % Preferably, the chemical composition is such that: O ≤ 0.005% N ≤ 0.003% S ≤ 0.0005%

Afin d'obtenir une bonne aptitude à l'emboutissage et un bon état de surface après traitement thermique, il est préférable que : C ≤ 0,005 % B ≤ 0,0004% In order to obtain a good drawing ability and a good surface condition after heat treatment, it is preferable that: C ≤ 0.005% B ≤ 0.0004%

De préférence la teneur en Nickel doit être comprise entre 35,8% et 36,3% et mieux encore entre 35,9% et 36,2% et, Cr≤0,1%, Cu≤0,1%, Mo≤0,1%, V≤0,1%, Nb≤0,1%Preferably the nickel content must be between 35.8% and 36.3% and better still between 35.9% and 36.2% and, Cr≤0.1%, Cu≤0.1%, Mo≤0.1%, V≤0.1%, Nb≤0.1%

Pour obtenir un très bas coefficient de dilatation, il est préférable que : Cr+Cu+Mo+V+Nb +Si ≤ 0,15%To obtain a very low coefficient of expansion, it is preferable that: Cr + Cu + Mo + V + Nb + Si ≤ 0.15%

L'invention concerne également une bande en alliage Fer/Nickel selon l'invention, obtenue par laminage à chaud puis à froid, de largeur supérieure à 400 mm et dont le coefficient de dilatation linéaire entre 20°C et 100°C est inférieur à 0,9x10-6/oK.The invention also relates to a strip of iron / nickel alloy according to the invention, obtained by hot and then cold rolling, of width greater than 400 mm and whose coefficient of linear expansion between 20 ° C and 100 ° C is less than 0.9x10 -6 / o K.

L'invention va maintenant être décrite plus en détail mais de façon non limitative.The invention will now be described in more detail, but from without limitation.

L'alliage selon l'invention est un alliage à base de Fer et de Nickel contenant, de 35,5% à 37% de Nickel, éventuellement des éléments d'alliage complémentaires tels que le Cobalt, le Chrome, le Cuivre, le Molybdène, le Vanadium ou le Niobium en des teneurs inférieures à 3%, destinés à ajuster les caractéristiques mécaniques en fonction des utilisations.The alloy according to the invention is an alloy based on Iron and Nickel containing, from 35.5% to 37% of Nickel, possibly elements of complementary alloys such as Cobalt, Chromium, Copper, Molybdenum, Vanadium or Niobium in contents of less than 3%, intended to adjust the mechanical characteristics according to uses.

L'alliage contient, impérativement, moins de 0,1% et de préférence moins de 0,05% de Manganèse car cet élément augmente le coefficient de dilatation thermique.The alloy imperatively contains less than 0.1% and preferably less than 0.05% Manganese because this element increases the coefficient of thermal expansion.

La faible teneur en Manganèse a pour inconvénient d'être défavorable à l'aptitude à la déformation à chaud (ductililté à chaud) de l'alliage et pour obtenir une bonne ductilité à chaud il est nécessaire que l'alliage contienne en combinaison :

  • moins de 0,001% et de préférence moins de 0,0005% de Soufre.
  • moins de 0,003% de Phosphore.
  • entre 0,0001 % et 0,002% de Calcium.
  • entre 0,0001 % et 0,002% de Magnésium
  • entre 0,03% et 0.15% de Silicium.
The low Manganese content has the disadvantage of being unfavorable to the hot deformation ability (hot ductility) of the alloy and to obtain good hot ductility it is necessary that the alloy contains in combination:
  • less than 0.001% and preferably less than 0.0005% of Sulfur.
  • less than 0.003% Phosphorus.
  • between 0.0001% and 0.002% Calcium.
  • between 0.0001% and 0.002% Magnesium
  • between 0.03% and 0.15% of Silicon.

Les teneurs en Manganèse, Calcium, Magnésium et Soufre doivent être telles que : S ≤ 0,02 x Mn + 0,8 x Ca + 0,6 x Mg The contents of Manganese, Calcium, Magnesium and Sulfur must be such that: S ≤ 0.02 x Mn + 0.8 x Ca + 0.6 x Mg

Les teneurs en Calcium et Magnésium sont limitées à 0,002% pour éviter la formation de grosses inclusions susceptibles de provoquer des piqûres lors de la découpe chimique, c'est notamment le cas lorsque l'alliage est utilisé sous forme de bandes minces pour la fabrication de masques d'ombre pour tubes cathodiques.Calcium and Magnesium contents are limited to 0.002% to avoid the formation of large inclusions which may cause pitting during chemical cutting, this is particularly the case when the alloy is used in the form of thin strips for the manufacture of shadow masks for cathode ray tubes.

Il est également nécessaire, pour obtenir une bonne ductilité à chaud, que l'alliage contienne moins de 0,005% d'Aluminium et moins de 0,005% et de préférence moins de 0,003% d'Azote. Il doit également contenir moins de 0,01 % et de préférence moins de 0,005% d'Oxygène.It is also necessary, in order to obtain good ductility at hot, that the alloy contains less than 0.005% aluminum and less than 0.005% and preferably less than 0.003% nitrogen. He must also contain less than 0.01% and preferably less than 0.005% of Oxygen.

Afin d'obtenir le coefficient de dilatation le plus bas possible, la teneur en Nickel doit être comprise de préférence entre 35,8% et 36,3%, et mieux encore entre 35,9% et 36,2% ; la teneur optimale étant 36,05%.In order to obtain the lowest possible coefficient of expansion, the nickel content should preferably be between 35.8% and 36.3%, and better still between 35.9% and 36.2%; the optimal content being 36.05%.

Les éléments d'alliage Chrome, Cuivre, Molybdène, Vanadium Niobium et Silicium ont un effet défavorable sur le coefficient de dilatation. Aussi, lorsqu'on cherche le coefficient de dilatation le plus bas possible, les teneurs en chacun de ces éléments doivent rester inférieures à 0,1% et de préférence inférieures à 0,05%.
Mieux encore il est souhaitable que : Cr+Cu+Mo+V+Nb+Si ≤ 0,15% The elements of alloy Chrome, Copper, Molybdenum, Vanadium Niobium and Silicon have an unfavorable effect on the coefficient of expansion. Also, when looking for the lowest possible coefficient of expansion, the contents of each of these elements must remain less than 0.1% and preferably less than 0.05%.
Better still, it is desirable that: Cr + Cu + Mo + V + Nb + Si ≤ 0.15%

Le cobalt est un élément qui peut être substitué partiellement au Nickel jusqu'à hauteur de 10%, mais cet élément présente des inconvénients lorsque l'alliage doit subir une attaque chimique par exemple pour faire de la gravure chimique, aussi, sa teneur doit de préférence être limitée à 0,5% notamment lorsque l'alliage est destiné à fabriquer des masques d'ombre pour tubes cathodiques.Cobalt is an element that can be partially substituted Nickel up to 10%, but this element has disadvantages when the alloy has to undergo a chemical attack for example to make chemical etching, too, its content should preferably be limited to 0.5%, in particular when the alloy is intended to manufacture shadow masks for cathode ray tubes.

Lorsque l'alliage est utilisé pour fabriquer des bandes minces destinées à être embouties, il doit contenir moins de 0,005% de Carbone afin d'avoir une limite d'élasticité la plus basse possible ce qui est favorable à une bonne aptitude à l'emboutissage. When the alloy is used to manufacture thin strips intended for stamping, it must contain less than 0.005 % of Carbon in order to have the lowest possible elasticity limit which is favorable for a good drawing ability. .

La teneur en Hydrogène doit être inférieure à 0,001 % et de préférence inférieure à 0,0005% pour éviter la formation de soufflures. La teneur en Bore doit rester inférieure à 0,0004% afin d'éviter la formation de nitrures de Bore en surface des produits lors des traitements thermiques. Ces nitrures forment une couche pulvérulente qui entraíne une mauvaise adhérence de la couche de noircissage réalisée sur les masques d'ombre.The hydrogen content must be less than 0.001% and preferably less than 0.0005% to avoid the formation of blisters. The boron content must remain below 0.0004 % in order to avoid the formation of boron nitrides on the surface of the products during heat treatments. These nitrides form a powdery layer which causes poor adhesion of the darkening layer produced on the shadow masks.

Le reste de la composition chimique de l'alliage est constitué par du Fer.The rest of the chemical composition of the alloy consists with Iron.

Cet alliage permet de fabriquer par laminage à chaud de lingots ou de brames, puis par laminage à froid, des bandes minces, d'épaisseur inférieure à 0,3 mm et de largeur supérieure à 400 mm, utilisées notamment pour la fabrication de masques d'ombre pour écrans cathodiques.This alloy makes it possible to manufacture by hot rolling ingots or slabs, then by cold rolling, thin strips, less than 0.3 mm thick and more than 400 mm wide, used in particular for the manufacture of shadow masks for screens cathodic.

A titre d'exemple, on a fabriqué une bande de 600 mm de large et de 0,15 mm d'épaisseur, par laminage à chaud puis à froid d'un lingot d'alliage Fer/Nickel dont la composition chimique était en poids :

  • Ni : 35,97%
  • Co : 0,019%
  • Cr : 0,025%
  • Cu : < 0,01%
  • Mo : 0,0058%
  • V: < 0,005%
  • Nb : < 0,005%
  • Mn : 0,041%
  • Si : 0,048%
  • S : < 0,0005%
  • Ca : 0,0002%
  • Mg : 0,0003%
  • Al : < 0,005%
  • O : 0,0045%
  • C : 0,0033%
  • N : 0,0032%
  • P: < 0,003%
  • H : < 0,001%
  • B : < 0,0004%
    • By way of example, a strip 600 mm wide and 0.15 mm thick was produced by hot and then cold rolling of an ingot of iron / nickel alloy whose chemical composition was by weight. :
  • Ni: 35.97%
  • Co: 0.019%
  • Cr: 0.025%
  • Cu: <0.01%
  • MB: 0.0058%
  • V: <0.005%
  • Nb: <0.005%
  • Mn: 0.041%
  • If: 0.048%
  • S: <0.0005%
  • Ca: 0.0002%
  • Mg: 0.0003%
  • Al: <0.005%
  • O: 0.0045%
  • C: 0.0033%
  • N: 0.0032%
  • P: <0.003%
  • H: <0.001%
  • B: <0.0004%

    • Lorsque les teneurs sont indiquées comme étant "inférieures à" cela signifie qu'elles sont inférieures à la limite de sensibilité des méthodes d'analyse utilisées.When the levels are indicated as "lower to "this means that they are below the sensitivity limit of analytical methods used.

    Le laminage à chaud s'est effectué sans formation de criques. Le coefficient de dilatation était de 0,81x10-6/oK. Après traitement thermique de 30 minutes à 800°C, la limite d'élasticité E0,2 était de 270MPa, le champ coercitif était de 0,45 Oe. La bande avait une très bonne aptitude à la gravure chimique. L'ensemble de ces propriétés la rendaient particulièrement apte à la fabrication de masques d'ombre pour tubes cathodiques.The hot rolling was carried out without cracking. The coefficient of expansion was 0.81x10 -6 / o K. After heat treatment for 30 minutes at 800 ° C, the elastic limit E0.2 was 270MPa, the coercive field was 0.45 Oe. The tape had very good chemical etching ability. All of these properties made it particularly suitable for the manufacture of shadow masks for cathode ray tubes.

    L'alliage selon l'invention peut également être utilisé notamment en métrologie ou pour la fabrication de bilames.The alloy according to the invention can also be used especially in metrology or for the manufacture of bimetallic strips.

    Claims (6)

    1. Iron/nickel alloy having a low coefficient of expansion, characterized in that its chemical composition comprises, by weight: 35.5% ≤ Ni ≤ 37% Mn ≤ 0.1% 0.03% ≤ Si ≤ 0.15% 0.0001% ≤ Ca ≤ 0.002% 0.0001% ≤ Mg ≤ 0.002% Al ≤ 0.005% S ≤ 0.001% O ≤ 0.01% N ≤ 0.005% P ≤ 0.003% C ≤ 0.005% B ≤ 0.0004% H ≤ 0.001% Cr ≤ 0.1% Cu ≤ 0.1% Mo ≤ 0.1% V ≤ 0.1% Nb ≤ 0.1% Co ≤ 0.5% the balance being iron, and in that: S ≤ 0.02 × Mn + 0.8 × Ca + 0.6 × Mg.
    2. Iron/nickel alloy according to Claim 1, characterized in that: O ≤ 0.005% N ≤ 0.003% S ≤ 0.0005%.
    3. Iron/nickel alloy according to Claim 1 or Claim 2, characterized in that: 35.8% ≤ Ni ≤ 36.3%.
    4. Iron/nickel alloy according to Claim 3, characterized in that: 35.9% ≤ Ni ≤ 36.2%.
    5. Alloy according to any one of Claims 1 to 4, characterized in that: Cr + Cu + Mo + V + Nb + Si ≤ 0.15%.
    6. Strip made of iron/nickel alloy according to any one of Claims 1 to 5, obtained by hot rolling and then cold rolling, characterized in that its width is greater than 400 mm and its coefficient of expansion between 20°C and 100°C is less than 0.9 × 10-6/K.
    EP95402513A 1994-11-23 1995-11-10 Iron-nickel alloy with low thermal expansion coefficient Expired - Lifetime EP0713923B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9414011 1994-11-23
    FR9414011A FR2727131B1 (en) 1994-11-23 1994-11-23 FER-NICKEL ALLOY WITH LOW EXPANSION COEFFICIENT

    Publications (2)

    Publication Number Publication Date
    EP0713923A1 EP0713923A1 (en) 1996-05-29
    EP0713923B1 true EP0713923B1 (en) 2000-06-21

    Family

    ID=9469054

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95402513A Expired - Lifetime EP0713923B1 (en) 1994-11-23 1995-11-10 Iron-nickel alloy with low thermal expansion coefficient

    Country Status (9)

    Country Link
    US (1) US20010045246A1 (en)
    EP (1) EP0713923B1 (en)
    JP (1) JPH08209306A (en)
    KR (1) KR100227354B1 (en)
    CN (1) CN1044825C (en)
    DE (1) DE69517575T2 (en)
    DK (1) DK0713923T3 (en)
    FR (1) FR2727131B1 (en)
    PL (1) PL180440B1 (en)

    Families Citing this family (13)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2728724B1 (en) * 1994-12-27 1997-01-24 Imphy Sa METHOD FOR MANUFACTURING AN IRON-NICKEL ALLOY SHADOW MASK
    JPH1060528A (en) * 1996-08-14 1998-03-03 Sumitomo Metal Ind Ltd Production of high strength invar alloy sheet
    FR2767538B1 (en) * 1997-08-21 2001-05-11 Imphy Sa PROCESS FOR PRODUCING A FER-NICKEL ALLOY STRIP FROM A HALF CONTINUOUS CASTING PRODUCT
    JP2000055285A (en) * 1998-08-11 2000-02-22 Osaka Gas Co Ltd Low-temperature fluid carrier equipment
    DE19920144C1 (en) * 1999-05-03 2000-08-03 Krupp Vdm Gmbh Iron-nickel alloy is used for shadow masks and frame parts of screens, passive components of thermo-bimetals, in the production, storage and transport of liquefied gases or for components of laser technology
    FR2819825B1 (en) * 2001-01-24 2003-10-31 Imphy Ugine Precision PROCESS FOR MANUFACTURING A FE-NI ALLOY STRIP
    FR2849061B1 (en) * 2002-12-20 2005-06-03 Imphy Ugine Precision FER-NICKEL ALLOY WITH VERY LOW THERMAL EXPANSION COEFFICIENT FOR THE MANUFACTURE OF SHADOW MASKS
    DE102009039228A1 (en) * 2009-08-28 2011-03-03 Emitec Gesellschaft Für Emissionstechnologie Mbh Thermoelectric device
    CN102214852B (en) 2011-03-16 2014-06-04 华为技术有限公司 Method for manufacturing resonant tube, resonant tube and filter
    CN102145977B (en) 2011-03-16 2013-09-11 华为技术有限公司 Powdered materials, communication equipment manufacturing method and communication equipment
    RU2655501C2 (en) * 2014-03-14 2018-05-28 Аперам Iron-nickel alloy with improved weld-ability
    CN107746933B (en) * 2017-10-16 2019-05-10 太原钢铁(集团)有限公司 The method of low bulk Precise Alloy hot continuous rolling
    EP4144881A4 (en) * 2020-04-28 2023-11-15 NIPPON STEEL Stainless Steel Corporation Alloy material and method for producing same

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3114662A (en) * 1961-01-13 1963-12-17 Weinschel Eng Co Inc Low temperature coefficient alloy
    FR1309618A (en) * 1961-12-29 1962-11-16 Gen Comm Company Low coefficient of expansion alloy
    FR1493034A (en) * 1966-07-12 1967-08-25 Soc Metallurgique Imphy Process for improving the weldability of iron-nickel alloys with a high nickel content and alloys obtained by this process
    JPH04160824A (en) * 1990-10-25 1992-06-04 Oki Electric Ind Co Ltd System for monitoring optical repeater
    JP2596210B2 (en) * 1990-10-31 1997-04-02 日本鋼管株式会社 Method of preventing adhesion seizure during annealing, Fe-Ni alloy for shadow mask excellent in gas emission, and method for producing the same
    JP2590657B2 (en) * 1991-12-12 1997-03-12 日本鋼管株式会社 Fe-Ni alloy excellent in adhesion seizure prevention and gas emission during annealing, and method for producing the same
    JP3465171B2 (en) * 1992-01-09 2003-11-10 日本冶金工業株式会社 Amber alloy for shadow mask
    DE4402684C2 (en) * 1993-05-27 2001-06-21 Krupp Vdm Gmbh Use of a low-expansion iron-nickel alloy
    EP0627494B1 (en) * 1993-05-31 1997-07-23 Nkk Corporation Alloy sheet for shadow mask and method for manufacturing thereof

    Also Published As

    Publication number Publication date
    JPH08209306A (en) 1996-08-13
    FR2727131B1 (en) 1996-12-13
    CN1044825C (en) 1999-08-25
    KR100227354B1 (en) 1999-11-01
    FR2727131A1 (en) 1996-05-24
    PL311448A1 (en) 1996-05-27
    PL180440B1 (en) 2001-02-28
    US20010045246A1 (en) 2001-11-29
    DE69517575T2 (en) 2001-03-08
    EP0713923A1 (en) 1996-05-29
    DK0713923T3 (en) 2000-10-09
    CN1131702A (en) 1996-09-25
    DE69517575D1 (en) 2000-07-27
    KR960017884A (en) 1996-06-17

    Similar Documents

    Publication Publication Date Title
    EP0713923B1 (en) Iron-nickel alloy with low thermal expansion coefficient
    EP0889145B1 (en) Stainless austenoferritic steel with very low nickel content and showing high elongation under tensile load
    CA2467681C (en) Aluminium alloy strips for heat exchangers
    JP2007051351A (en) Mn-CONTAINED COPPER ALLOY SPUTTERING TARGET WITH LESS OCCURRENCE OF PARTICLE
    FR2668498A1 (en) FE-NI ALLOY SHEET FOR PERFORATED MASK, EXCELLENT ENGRAVING DRILLING CAPABILITY, PREVENTING BONDING DURING THE NOISE, AND INHIBITING GAS PRODUCTION.
    EP1153396B1 (en) Method for making thin zirconium alloy elements and wafers obtained
    EP0738783A1 (en) Stainless austenitic steel suitable for the manufacture of wires
    EP0430754B1 (en) Stainless shape memory alloy and process for producing the same
    WO2004063411A1 (en) Iron-nickel alloy with low coefficient of thermal expansion for making shade masks
    EP0931844B1 (en) Cobalt-free maraging steel
    EP0388283B1 (en) Stainless ferritic steel and process for manufacturing this steel
    EP0845544B1 (en) Steel product made from bainitic steel and process for making the steel product
    EP0745697B1 (en) Iron-cobalt-nickel alloy and its use for the manufacture of a shadow mask
    WO2001092587A1 (en) Hardened fe-ni alloy for making integrated circuit grids and method for making same
    FR2631350A1 (en) FERROMAGNETIC NI-FE ALLOY AND PROCESS FOR PRODUCING BRAMES HAVING SURFACE QUALITY EXCELLENT IN THIS ALLOY
    EP0143727A2 (en) Aluminium-based alloys having a high heat stability
    FR2521039A1 (en) PROCESS FOR MANUFACTURING A COLD-ROLLED STEEL SHEET WITH EXCELLENT FORMING QUALITIES
    EP0748877B1 (en) Process for manufacturing a hot rolled steel sheet with very high elastic limit and steel sheet produced accordingly
    FR2763961A1 (en) HIGH TENACITY STAINLESS STEEL, ARTICLE COMPRISING SAME AND METHOD FOR INCREASING TENACITY
    EP0181791B1 (en) Low-alloyed manganese steel for bicycle frame tubes, a frame tube produced and process for its manufacture
    EP0149946B1 (en) Nickel base alloy
    JP2003027167A (en) Aluminum-alloy material and manufacturing method
    EP0170546B1 (en) High-strength nitriding steel with good machinability, useful as construction steel, and process for its manufacture
    WO2003069637A1 (en) Low-frequency magnetic screening made from a soft magnetic alloy
    EP0935007B1 (en) Cobalt-free and titanium-free maraging steel

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): BE DE DK IT LU NL SE

    17P Request for examination filed

    Effective date: 19960610

    17Q First examination report despatched

    Effective date: 19981008

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    RAP1 Party data changed (applicant data changed or rights of an application transferred)

    Owner name: IMPHY UGINE PRECISION

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): BE DE DK IT LU NL SE

    REF Corresponds to:

    Ref document number: 69517575

    Country of ref document: DE

    Date of ref document: 20000727

    ITF It: translation for a ep patent filed

    Owner name: BUGNION S.P.A.

    REG Reference to a national code

    Ref country code: DK

    Ref legal event code: T3

    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed
    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: LU

    Payment date: 20031031

    Year of fee payment: 9

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: SE

    Payment date: 20031103

    Year of fee payment: 9

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DK

    Payment date: 20031104

    Year of fee payment: 9

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: BE

    Payment date: 20031209

    Year of fee payment: 9

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: LU

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20041110

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20041111

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DK

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20041130

    Ref country code: BE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20041130

    BERE Be: lapsed

    Owner name: *IMPHY UGINE PRECISION

    Effective date: 20041130

    REG Reference to a national code

    Ref country code: DK

    Ref legal event code: EBP

    EUG Se: european patent has lapsed
    BERE Be: lapsed

    Owner name: *IMPHY UGINE PRECISION

    Effective date: 20041130

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: NL

    Payment date: 20071104

    Year of fee payment: 13

    Ref country code: DE

    Payment date: 20071108

    Year of fee payment: 13

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: IT

    Payment date: 20071127

    Year of fee payment: 13

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20090601

    NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

    Effective date: 20090601

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20081110

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20090603