JPH08311622A - Fe-ni-co alloy and use thereof in production of shadow mask - Google Patents

Fe-ni-co alloy and use thereof in production of shadow mask

Info

Publication number
JPH08311622A
JPH08311622A JP8132661A JP13266196A JPH08311622A JP H08311622 A JPH08311622 A JP H08311622A JP 8132661 A JP8132661 A JP 8132661A JP 13266196 A JP13266196 A JP 13266196A JP H08311622 A JPH08311622 A JP H08311622A
Authority
JP
Japan
Prior art keywords
alloy
less
shadow mask
content
expansion coefficient
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
JP8132661A
Other languages
Japanese (ja)
Other versions
JP3756984B2 (en
Inventor
Ricardo Cozar
コザール リカルド
Marie-Paul Solignac
ソリニャック マリ−ポール
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.)
Imphy SA
Original Assignee
Imphy 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 SA filed Critical Imphy SA
Publication of JPH08311622A publication Critical patent/JPH08311622A/en
Application granted granted Critical
Publication of JP3756984B2 publication Critical patent/JP3756984B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt

Abstract

PROBLEM TO BE SOLVED: To produce an Fe-Ni-Co alloy having a small expansion coefficient by making the alloy containing specified wt.% of Ni, Co or the like and the balance Fe with inevitable impurities and specifying the relations between elements.
SOLUTION: The chemical constitution of the Fe-Ni-Co alloy is composed of, by wt.%, 32 to 34% Ni, 3.5 to 6.5% Co, 0 to 0.1% Mn, 0 to 0.1% Si, 0 to 0.1% Cr, 0.005 to 0.02% C, ≤0.001% S, 0.0001 to 0.002% Ca, 0.0001 to 0.002% Mg and the balance Fe withe inevitable impurities. Furthermore, the elements satisfy formula I, formula II, formula III and formula IV. Also, the alloy may contain 0.1% or less Cu, Mo, V and Nb. Thus, a shadow mask with few defects is produced.
COPYRIGHT: (C)1996,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は膨脹係数が小さいFe
-Ni-Co合金と、その陰極線管用シャドーマスクの製造で
の使用に関するものである。TECHNICAL FIELD The present invention relates to Fe having a small expansion coefficient.
-Ni-Co alloys and their use in the production of shadow masks for cathode ray tubes.

【０００２】[0002]

【従来の技術】膨脹係数の低いFe-Ni-Co合金は一般にス
ーパーインヴァー（SUPERINVER）とよばれ、広く知られ
ている。この合金はシャドーマスク製造に使用されてて
おり、例えば欧州特許第 5,340,460号は、シャドーマス
ク製造用として28〜34重量％のニッケルと、２〜７重量
％のコバルトと、 0.1〜１％のマンガンと、 0.1％以下
の珪素と、0.01％以下の炭素とを含み、残部が鉄と不可
避不純物とであるFe-Ni-Co合金を提案している。しか
し、この合金は室温近くにマルテンサイト変態開始点Ms
があり、シャドーマスクの成形時および低温保管時にマ
ルテンサイト変態開始点Msになってシャドーマスクが永
久変形するという欠陥がある。しかも、熱間圧延性を良
くするのに必要なマンガン量を含有するため、この合金
の膨脹係数はシャドーマスクの局部ドーム欠陥を十分に
減らすに高過ぎる。2. Description of the Related Art Fe-Ni-Co alloys having a low expansion coefficient are generally known as SUPERINVER and are widely known. This alloy has been used in shadow mask manufacturing, for example, EP 5,340,460 discloses 28-34% by weight nickel, 2-7% by weight cobalt and 0.1-1% manganese for shadow mask manufacturing. And a Fe-Ni-Co alloy containing 0.1% or less of silicon and 0.01% or less of carbon, with the balance being iron and inevitable impurities. However, this alloy has a martensitic transformation starting point Ms near the room temperature.
However, there is a defect that the shadow mask is permanently deformed at the martensite transformation start point Ms during molding of the shadow mask and storage at low temperature. Moreover, the expansion coefficient of this alloy is too high to sufficiently reduce the local dome defects of the shadow mask because it contains the amount of manganese necessary for improving the hot rolling property.

【０００３】[0003]

【発明が解決しようとする課題】本発明の目的はマルテ
ンサイト変態開始点が−50℃以下で、20〜100 ℃の平均
膨脹係数が 0.7×10-6／°Ｋ以下で、80〜130 ℃の平均
膨脹係数が 1×10-6／°Ｋ以下である Fe-Ni-Co 合金を
提供することにある。The object of the present invention is to have a martensite transformation starting point of -50 ° C or lower, an average expansion coefficient of 20 to 100 ° C of 0.7 × 10 -6 / ° K or lower, and 80 to 130 ° C. To provide an Fe-Ni-Co alloy having an average expansion coefficient of 1 × 10 -6 / ° K or less.

【０００４】[0004]

【課題を解決するための手段】本発明は下記化学組成
（重量％）： 32％ ≦Ni≦34％ 3.5 ％≦Co≦6.5 ％ ０％≦Mn≦0.1 ％ ０％≦Si≦0.1 ％ ０％≦Cr≦0.1 ％ 0.005％≦C ≦0.02％ S ≦0.001 ％ 0.0001％≦Ca≦0.002 ％ 0.0001 ％≦Mg≦0.002 ％ 残部は鉄および不可避不純物を有し且つ下記関係式： Co＋Ni≦ 38.5 ％ Co＋ 0.5×Ni≧ 20 ％ Co＋ 5×Ni≧ 165.5％ S≦0.02×Mn＋ 0.8×Ca＋ 0.6×Mg を満足するFe-Ni-Co合金を提供する。Means for Solving the Problems The present invention has the following chemical composition (% by weight): 32% ≤ Ni ≤ 34% 3.5% ≤ Co ≤ 6.5% 0% ≤ Mn ≤ 0.1% 0% ≤ Si ≤ 0.1% 0% ≤ Cr ≤ 0.1% 0.005% ≤ C ≤ 0.02% S ≤ 0.001% 0.0001% ≤ Ca ≤ 0.002% 0.0001% ≤ Mg ≤ 0.002% The balance has iron and unavoidable impurities and the following relational expression: Co + Ni ≤ 38.5% Co + 0.5 Provided is a Fe-Ni-Co alloy satisfying × Ni ≧ 20% Co + 5 × Ni ≧ 165.5% S ≦ 0.02 × Mn + 0.8 × Ca + 0.6 × Mg.

【０００５】[0005]

【発明の実施の形態】銅、モリブデン、バナジウムおよ
びニオブの各含有率は1 ％以下であるのが好ましく、マ
ンガン、珪素、クロム、銅、モリブデン、バナジウムお
よびニオブの各含有率の合計は 0.3％以下であるのが好
ましい。酸素含有率は0.01％以下、窒素含有率は 0.005
％以下、リン含有率が0.005 ％以下であるのが好まし
い。本発明は、さらに、上記合金のシャドーマスク製造
への利用と、得られたシャドーマスクとに関するもので
ある。BEST MODE FOR CARRYING OUT THE INVENTION The content of copper, molybdenum, vanadium and niobium is preferably 1% or less, and the total content of manganese, silicon, chromium, copper, molybdenum, vanadium and niobium is 0.3%. The following is preferable. Oxygen content is 0.01% or less, nitrogen content is 0.005
%, And the phosphorus content is preferably 0.005% or less. The invention further relates to the use of the above alloys in the production of shadow masks and the resulting shadow masks.

【０００６】シャドーマスクの変形は主として 100℃以
下、典型的にには80℃に加熱した時に生じるということ
は知られている。本発明者は画像欠陥の原因は 130℃の
高温でシャドーマスクを局部加熱することにあると考え
た。この画像欠陥をできるだけ減らすには、20〜100 ℃
の平均膨脹係数をできるだけ低く、しかも、80〜130℃
の平均膨脹係数もできるだけ低い合金を用いてシャドー
マスクを製造する必要がある。しかも、少なくとも−50
℃の十分な低温でも安定したミクロ組織を有する合金で
なければならない。It is known that the deformation of shadow masks occurs mainly when heated below 100 ° C., typically 80 ° C. The inventor considered that the cause of the image defect is that the shadow mask is locally heated at a high temperature of 130 ° C. To reduce this image defect as much as possible, 20-100 ℃
The average expansion coefficient of is as low as possible, and 80 ~ 130 ℃
It is necessary to manufacture the shadow mask using an alloy whose average expansion coefficient is as low as possible. Moreover, at least -50
The alloy must have a stable microstructure even at a sufficiently low temperature of ° C.

【０００７】本発明合金は、20〜100 ℃の平均膨脹係数
が 0.7×10-6/ °Ｋ以下であると同時に、80〜130 ℃の
平均膨脹係数が 1×10-6/ °Ｋ以下で、しかも、合金の
Msが−50℃以下となるように化学組成を合わせた Fe-Ni
-Co 合金である。The alloy of the present invention has an average expansion coefficient of 20 to 100 ° C. of 0.7 × 10 -6 / ° K or less and an average expansion coefficient of 80 to 130 ° C. of 1 × 10 -6 / ° K or less. , And of the alloy
Fe-Ni whose chemical composition has been adjusted so that Ms is below -50 ℃
-Co alloy.

【０００８】本発明合金の化学組成は、32〜34重量％の
ニッケルと、 3.5〜6.5 重量％のコバルトとを含み、ニ
ッケルとコバルトの含有率は下記の範囲：Co＋Ni≦38.5
％であり、20〜100 ℃の平均膨脹係数を 0.7×10-6/ °
Ｋ以下にするために Co＋0.5 ％×Ni≧20％ であり、また、80〜130 ℃の平均膨脹係数を 1×10-6/
°Ｋ以下にするために Co＋5 ×Ni≧165.5 ％ であり、Msは−50℃以下である。The chemical composition of the alloy of the present invention contains 32-34% by weight of nickel and 3.5-6.5% by weight of cobalt, and the content ratio of nickel and cobalt is in the following range: Co + Ni≤38.5.
%, And the average expansion coefficient of 20-100 ℃ is 0.7 × 10 -6 / °
Co + 0.5% × Ni ≧ 20% in order to keep K or less, and the average expansion coefficient at 80 to 130 ℃ is 1 × 10 -6 /
Co + 5 × Ni ≧ 165.5% to keep the temperature below ° K, and Ms is -50 ° C or below.

【０００９】20〜100 ℃の平均膨脹係数を 0.7×10 -6/
°Ｋ以下にするためにはマンガン、珪素およびコバルト
の各含有率は 0.1％以下にする必要がある。本発明合金
は Ms を−50℃以下に保つために、少なくとも 0.005％
の炭素を含む必要があるが、絞り加工特性を悪くしてい
ためには炭素含有率は0.02％を越えてはならない。The average expansion coefficient of 20 to 100 ° C. is 0.7 × 10 -6 /
In order to keep the temperature below ° K, the contents of manganese, silicon and cobalt must be below 0.1%. The alloy of the present invention has at least 0.005% in order to keep Ms at −50 ° C. or lower.
However, the carbon content must not exceed 0.02% because of poor drawing properties.

【００１０】工業的合金は銅、モリブデン、バナジウム
およびニオブ等の残留元素を常に含むが、平均膨脹係数
をできるだけ低くするためには、各元素の含有率を 0.1
％以下にし、好ましくは Mn＋Si＋Cr＋Mo＋V ＋Nb＋Cu≦0.30％ となるようにするのか好ましい。Industrial alloys always contain residual elements such as copper, molybdenum, vanadium and niobium, but in order to keep the average expansion coefficient as low as possible, the content of each element is 0.1.
% Or less, preferably Mn + Si + Cr + Mo + V + Nb + Cu ≦ 0.30%.

【００１１】熱間延性を良くするためには、酸素含有率
を0.01％以下、窒素含有率を0.005％以下、リン含有率
を 0.005％以下にするのが好ましい。本発明合金を用い
てシャドーマスクを製造する際には、合金をインゴット
またはスラブにし、次いで熱間圧延して厚さが約４mmの
ストリップを製造する。このストリップを冷間圧延して
厚さが約 0.15mm のストリップにする。この冷間圧延ス
トリップの 0.2％降伏応力 Rp0.2は 20 ℃で約 600MPa
であり、この値では加工が容易ではないので、化学的に
切断してマスクブランクを作り、そのブランクを温度 7
00〜850 ℃でアニールすると、 0.2％降伏応力 Rp0.2は
20 ℃で約 320MPa に下がる。その後、各ブランクを例
えば絞り加工してシャドーマスクに生計する。In order to improve hot ductility, it is preferable that the oxygen content is 0.01% or less, the nitrogen content is 0.005% or less, and the phosphorus content is 0.005% or less. In making shadow masks using the alloys of this invention, the alloys are ingots or slabs and then hot rolled to produce strips about 4 mm thick. This strip is cold rolled to a strip about 0.15 mm thick. The 0.2% yield stress Rp 0.2 of this cold rolled strip is about 600 MPa at 20 ° C.
Since it is not easy to process with this value, it is chemically cut to make a mask blank and the blank is
When annealed at 00-850 ℃, 0.2% yield stress Rp 0.2
It drops to about 320MPa at 20 ℃. After that, each blank is subjected to, for example, a drawing process to be used as a shadow mask.

【００１２】以下、本発明の実施例を説明するが、本発
明が下記実施例に限定されるものではない。Examples of the present invention will be described below, but the present invention is not limited to the following examples.

【実施例】一例として〔表１〕の化学組成（重量％）の
本発明合金Ａ〜Ｄを製造した：EXAMPLES As an example, alloys A to D of the present invention having the chemical composition (% by weight) shown in Table 1 were produced:

【００１３】[0013]

【表１】 [Table 1]

【００１４】各合金の特性は下記の〔表２〕に記載して
ある。The properties of each alloy are listed in Table 2 below.

【００１５】[0015]

【表２】 [Table 2]

【００１６】これらの合金からなる有孔シートを絞り加
工してシャドーマスクを製造した。得られたシャドーマ
スクは成形後または冷たい環境下で保管した後でも完全
なオーステナイト組織を有し且つ本発明のシャドーマス
クは局所ドーム欠陥 (defautcloquage) は従来の鉄／ニ
ッケル合金のシャドーマスクの少なくとも40％以下であ
る。A perforated sheet made of these alloys was drawn to produce a shadow mask. The resulting shadow mask has a perfect austenite structure even after molding or after storage in a cold environment, and the shadow mask of the present invention has a local dome defect (defaut cloquage) of at least 40% of that of a conventional iron / nickel alloy shadow mask. % Or less.

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 下記化学組成（重量％）： 32％ ≦Ni≦34％ 3.5 ％≦Co≦6.5 ％ ０％≦Mn≦0.1 ％ ０％≦Si≦0.1 ％ ０％≦Cr≦0.1 ％ 0.005％≦C ≦0.02％ S ≦0.001 ％ 0.0001％≦Ca≦0.002 ％ 0.0001 ％≦Mg≦0.002 ％ 残部は鉄および不可避不純物を有し且つ下記関係式： Co＋Ni≦ 38.5 ％ Co＋ 0.5×Ni≧ 20 ％ Co＋ 5×Ni≧ 165.5％ S≦0.02×Mn＋ 0.8×Ca＋ 0.6×Mgを満足するFe-Ni-Co
合金。1. The following chemical composition (% by weight): 32% ≤Ni≤34% 3.5% ≤Co≤6.5% 0% ≤Mn≤0.1% 0% ≤Si≤0.1% 0% ≤Cr≤0.1% 0.005% ≤C ≤0.02% S ≤0.001% 0.0001% ≤Ca ≤0.002% 0.0001% ≤Mg ≤0.002% The balance has iron and unavoidable impurities and the following relational expression: Co + Ni ≤ 38.5% Co + 0.5 x Ni ≥ 20% Co + 5 Fe-Ni-Co satisfying × Ni ≧ 165.5% S ≦ 0.02 × Mn + 0.8 × Ca + 0.6 × Mg
alloy. 【請求項２】 銅、モリブデン、バナジウムおよびニオ
ブの各含有率が 0.1％以下である請求項１に記載の合
金。2. The alloy according to claim 1, wherein the content of each of copper, molybdenum, vanadium and niobium is 0.1% or less. 【請求項３】 マンガン、珪素、クロム、銅、モリブデ
ン、バナジウムおよびニオブの各含有率の合計が 0.3％
以下である請求項２に記載の合金。3. The total content of manganese, silicon, chromium, copper, molybdenum, vanadium and niobium is 0.3%.
The alloy of claim 2, wherein: 【請求項４】 酸素含有率が0.01％以下で、窒素含有率
が 0.005％以下で、リン含有率が 0.005％以下である請
求項１〜３のいずれか一項に記載の合金。4. The alloy according to claim 1, wherein the oxygen content is 0.01% or less, the nitrogen content is 0.005% or less, and the phosphorus content is 0.005% or less. 【請求項５】 請求項１〜４のいずれか一項に記載の合
金のシャドーマスク製造での使用。5. Use of the alloy according to any one of claims 1 to 4 in the manufacture of shadow masks. 【請求項６】 請求項１〜３のいずれか一項に記載の合
金からなる少なくとも１枚の有孔フィルムを有するシャ
ドーマスク。6. A shadow mask having at least one perforated film made of the alloy according to claim 1.
JP13266196A 1995-05-05 1996-04-30 Fe-Ni-Co alloy and its use in shadow mask manufacturing Expired - Fee Related JP3756984B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9505362 1995-05-05
FR9505362A FR2733767B1 (en) 1995-05-05 1995-05-05 FE-CO-NI ALLOY AND USE FOR THE MANUFACTURE OF A SHADOW MASK

Publications (2)

Publication Number Publication Date
JPH08311622A true JPH08311622A (en) 1996-11-26
JP3756984B2 JP3756984B2 (en) 2006-03-22

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ID=9478713

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Application Number Title Priority Date Filing Date
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Country Status (8)

Country Link
EP (1) EP0745697B1 (en)
JP (1) JP3756984B2 (en)
KR (1) KR100416116B1 (en)
CN (1) CN1059933C (en)
DE (1) DE69606737T2 (en)
DK (1) DK0745697T3 (en)
FR (1) FR2733767B1 (en)
PL (1) PL314075A1 (en)

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JPWO2002042508A1 (en) * 2000-11-21 2004-03-25 日本冶金工業株式会社 Fe-Ni alloy material for shadow mask with excellent etching processability
JP2006509906A (en) * 2002-12-12 2006-03-23 ティッセンクルップ　ファオ　デー　エム　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング Iron-nickel-cobalt alloy, method for producing the same and use thereof

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0174196B1 (en) * 1984-09-06 1989-03-22 Kabushiki Kaisha Toshiba Material for in-tube components & method of manufacture thereof
US4853298A (en) * 1986-04-08 1989-08-01 Carpenter Technology Corporation Thermally stable super invar and its named article
JP2723718B2 (en) * 1991-09-27 1998-03-09 ヤマハ株式会社 Fe-Ni-Co alloy for shadow mask

Cited By (2)

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Publication number Priority date Publication date Assignee Title
JPWO2002042508A1 (en) * 2000-11-21 2004-03-25 日本冶金工業株式会社 Fe-Ni alloy material for shadow mask with excellent etching processability
JP2006509906A (en) * 2002-12-12 2006-03-23 ティッセンクルップ　ファオ　デー　エム　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング Iron-nickel-cobalt alloy, method for producing the same and use thereof

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Publication number Publication date
CN1059933C (en) 2000-12-27
CN1138634A (en) 1996-12-25
PL314075A1 (en) 1996-11-12
EP0745697B1 (en) 2000-02-23
FR2733767B1 (en) 1997-06-06
DK0745697T3 (en) 2000-06-19
KR100416116B1 (en) 2004-03-30
JP3756984B2 (en) 2006-03-22
KR960041391A (en) 1996-12-19
DE69606737T2 (en) 2000-08-17
FR2733767A1 (en) 1996-11-08
DE69606737D1 (en) 2000-03-30
EP0745697A1 (en) 1996-12-04

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