JPH0359975B2 - - Google Patents
Info
- Publication number
- JPH0359975B2 JPH0359975B2 JP59107780A JP10778084A JPH0359975B2 JP H0359975 B2 JPH0359975 B2 JP H0359975B2 JP 59107780 A JP59107780 A JP 59107780A JP 10778084 A JP10778084 A JP 10778084A JP H0359975 B2 JPH0359975 B2 JP H0359975B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- shadow mask
- color picture
- picture tube
- mask
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 25
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims description 12
- 239000011574 phosphorus Substances 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 229910052787 antimony Inorganic materials 0.000 claims description 7
- 229910052785 arsenic Inorganic materials 0.000 claims description 7
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 5
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 description 14
- 229910000640 Fe alloy Inorganic materials 0.000 description 10
- 238000000137 annealing Methods 0.000 description 6
- 238000010894 electron beam technology Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 229910003271 Ni-Fe Inorganic materials 0.000 description 4
- 229910000990 Ni alloy Inorganic materials 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910000655 Killed steel Inorganic materials 0.000 description 1
- 229910001327 Rimmed steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、カラー受像管の改良に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to improvements in color picture tubes.
（従来の技術）
一般に、カラー受像管は第１図に示す構成とな
つている。即ち、図中の１はガラス外囲器であ
る。この外囲器１の一端のネツク部２には、例え
ばインライン配例の電子銃３が設けられ、かつ該
電子銃３と対向する他端部のフエース部４には多
数の赤、青、及び緑に区分されたけい光面５が配
設されている。このけい光面５に近接して多数の
ビーム開孔を有するシヤドウマスク６が配設され
ている。このシヤドウマスク６は、フレーム７に
係止具８を介して取り付けられており、かつ該フ
レーム７には前記電子銃３側に地磁気を遮断する
ためのインンナーシールド９が取付けられてい
る。こうした構成のカラー受像管において、電子
銃３から射出された電子ビーム１１は集束、加速
され、偏向装置１０によつて偏向され、シヤドウ
マスク６の開孔を通つてけい光面５に射突し、カ
ラー映像を再現する。(Prior Art) Generally, a color picture tube has a configuration shown in FIG. That is, 1 in the figure is a glass envelope. For example, an in-line electron gun 3 is provided in the neck portion 2 at one end of the envelope 1, and a face portion 4 at the other end facing the electron gun 3 has a large number of red, blue, and A green fluorescent surface 5 is provided. A shadow mask 6 having a large number of beam apertures is disposed adjacent to the fluorescent surface 5. This shadow mask 6 is attached to a frame 7 via a fastener 8, and an inner shield 9 is attached to the frame 7 on the electron gun 3 side for blocking earth's magnetic field. In the color picture tube having such a configuration, the electron beam 11 emitted from the electron gun 3 is focused, accelerated, deflected by the deflection device 10, and impinges on the fluorescent surface 5 through the aperture of the shadow mask 6. Reproduce color images.
ところで、前記カラー受像管に用いられるシヤ
ドウマスク、フレーム及びインナーシールドの部
材は、従来よりエツチング性、成形性がよく、電
子ビーム反射の軽減に寄与する酸化膜を簡単に作
り易い鉄材Feで形成されていた。しかしながら、
最近、パソコンのデイスプレイ、文字多重放送、
衛星放送、キヤプテンシステム等が一部実用化さ
れるに伴ないテレビ画面の“見やすさ”や“きめ
細やかさ”が重視されるようになるにつれて、前
記リム鋼やAlキルド鋼からなるシヤドウマスク
等の部材を使用することは次のような理由から困
難であつた。 Incidentally, the members of the shadow mask, frame, and inner shield used in the color picture tube are conventionally made of iron material Fe, which has good etching properties and moldability, and which makes it easy to form an oxide film that contributes to reducing electron beam reflection. Ta. however,
Recently, computer displays, teletext broadcasting,
As satellite broadcasting, satellite systems, etc. have been put into practical use, the "ease of viewing" and "detailedness" of TV screens have become important, and as a result, shadow masks made of the above-mentioned rim steel and Al-killed steel have become more important. It has been difficult to use these members for the following reasons.
即ち、一般にカラー受像管を動作させると、各
部材温度は30〜100℃に上昇し、例えばシヤドウ
マスクに関しては熱膨脹により成形形状がゆが
む、いわゆるドーミングが生じる。その結果、電
子ビーム軌道上に有するべきシヤドウマスクの開
孔部とけい光面のけい光層との相対位置関係がず
れ、ピユリテイードリフト（PD）と呼ばれる色
ずれ現象が発生する。上述したきめ細やかで見や
すいカラー受像管では、シヤドウマスクの開孔部
ピツチ及び孔径が非常に小さいため、ドーミング
によるシヤドウマスクの開孔部とけい光面のけい
光層との相対位置のずれ量に対する色ずれ程度は
民生用に比較して著しく大きく、従来の鉄材
（Fe）からなるシヤドウマスクでは実用に耐えな
い。 That is, in general, when a color picture tube is operated, the temperature of each member increases to 30 to 100 DEG C., and for example, in the case of a shadow mask, thermal expansion causes distortion of the molded shape, ie, so-called doming. As a result, the relative positional relationship between the aperture of the shadow mask, which should be located on the trajectory of the electron beam, and the phosphor layer on the phosphor surface is shifted, and a color shift phenomenon called pupil drift (PD) occurs. In the detailed and easy-to-see color picture tube described above, the aperture pitch and diameter of the shadow mask are very small, so the degree of color shift is dependent on the amount of relative positional shift between the aperture of the shadow mask and the phosphor layer on the phosphor surface due to doming. is significantly larger than that for civilian use, and conventional shadow masks made of iron (Fe) cannot withstand practical use.
このようなことから、熱膨脹係数に小さいFe
−Ni合金、例えばアンバー（36Ni−Fe）で形成
したシヤドウマスク等のカラー受像管用部材を形
成することが提案されている。しかしながら、ア
ンバーの成形性は従来の鉄材に比べて著しく悪
く、通常シヤドウマスク球面から電子銃方向にへ
こみを生ずる。これをシヤドウマスクのスプリン
グバツクと称され、アンバー材を使用した場合、
特にマスク周辺のへこみが大きく、フエース面か
らの相対的位置がずれ、カラー受像管としての使
用が困難となる。 For this reason, Fe has a small coefficient of thermal expansion.
It has been proposed to form a member for a color picture tube, such as a shadow mask, from a -Ni alloy, such as amber (36Ni-Fe). However, the formability of amber is significantly worse than that of conventional iron materials, and dents usually occur from the spherical surface of the shadow mask toward the electron gun. This is called the spring back of a shadow mask, and when using amber material,
In particular, the dents around the mask are large and the relative position from the face is shifted, making it difficult to use as a color picture tube.
（発明が解決しようとする課題）
本発明は、上記従来の問題点を解決するために
なされたもので、高品位テレビ画像を容易に実現
し得るカラー受像管を提供しようとするものであ
る。(Problems to be Solved by the Invention) The present invention has been made to solve the above-mentioned conventional problems, and aims to provide a color picture tube that can easily realize high-quality television images.
［発明の構成］
（課題を解決するための手段）
本発明は、シヤドウマスク、フレーム及びイン
ナーシールドのうちの少なくとも１つの部材を、
30〜37重量％Ni、残部が実質的に鉄からなるFe
−Ni合金にリン，砒素，アンチモンから選ばる
１種又は２種以上を0.002〜0.1重量％、好ましく
は0.005〜0.03重量を含む材料より形成すること
を特徴とするカラー受像管である。[Structure of the Invention] (Means for Solving the Problems) The present invention provides at least one member of a shadow mask, a frame, and an inner shield,
Fe consisting of 30-37% by weight Ni, the balance being essentially iron
- A color picture tube characterized in that it is formed from a material containing 0.002 to 0.1% by weight, preferably 0.005 to 0.03% by weight of one or more selected from phosphorus, arsenic, and antimony in a -Ni alloy.
上記Fe−Ni合金のNi量を限定した理由は、そ
の量が30〜37重量％の範囲を逸脱すると熱膨脹係
数の小さいシヤドウマスク等のカラー受像管を得
ることができなくなるためである。 The reason why the amount of Ni in the Fe--Ni alloy is limited is that if the amount deviates from the range of 30 to 37% by weight, it becomes impossible to obtain a color picture tube such as a shadow mask with a small coefficient of thermal expansion.
上記リン，砒素、アンチモンの元素はいずれも
焼鈍により粒界に偏析する傾向を有し、粒界脆化
を起こし易いため、耐力や引張り強度を低下させ
る均等的な作用を有する。こうした元素の含有割
合を上記範囲に限定した理由は、該元素の含有割
合を0.002重量％未満にすると、この元素を添加
した材料をいかなる条件で熱処理しても粒界脆化
現象が顕著に生じず、引張り強度の大巾な減少化
が困難となる。かといつて該元素の含有割合が
0.1重量％を越えると、鍛造時に割れを起こし易
くなり、たとえ鍛造時に割れが発生しなくともシ
ヤドウマスク等の成形時に割れを生じ、しかも逆
に、0.2耐力の増加がはじまり、スプリングバツ
ク現象がかえつて著しくなる。このためシヤドウ
マスク等の部材には不適当である。 The above-mentioned elements of phosphorus, arsenic, and antimony all have a tendency to segregate at grain boundaries during annealing, and because they tend to cause grain boundary embrittlement, they have a uniform effect of lowering yield strength and tensile strength. The reason for limiting the content ratio of these elements to the above range is that if the content ratio of the element is less than 0.002% by weight, grain boundary embrittlement phenomenon will occur significantly no matter what conditions the material to which this element is added is heat-treated. Therefore, it becomes difficult to significantly reduce the tensile strength. However, the content ratio of the element is
If it exceeds 0.1% by weight, cracks will easily occur during forging, and even if cracks do not occur during forging, cracks will occur during forming of shadow masks, etc., and conversely, the 0.2 proof stress will begin to increase, causing the springback phenomenon to occur again. It becomes noticeable. Therefore, it is unsuitable for members such as shadow masks.
上記Fe−Ni合金にリン、砒素、アンチモンか
ら選ばれる１種又は２種以上含む素材を焼鈍（熱
処理）することにより、結晶粒界における平均元
素Ｐ，As，Sb）濃度を粒内の平均元素濃度より
も高くでき、0.2％耐力の低い材料を得ることが
可能となる。かかる熱処理おしては、例えば(イ)前
記素材をFe−Niの状態図においてオーステナイ
ト領域まで加熱した後、室温まで戻す方法、(ロ)前
記素材をFe−Niの状態図においてオーテナイト
領域まで加熱した後、その温度より低い温度まで
時効処理して室温まで戻す方法がある。具体的に
は、リンを含む素材を800℃で焼鈍した場合には
リン添加量と0.2％耐力の関係を示す第２図の曲
線Ａとなり、1100℃で焼鈍した場合には同第２図
の曲線Ｂとなる。この第２図より焼鈍温度により
0.2％耐力の値に変化が生じる。但し、リンの添
加量による0.2％耐力値の傾向は同じである。特
に、リン添加量が0.1重量％以上になると、熱膨
脹係数も素材を950℃の焼鈍を行つた後に測定し
た場合、25×10-7〜50×10-7になり、0.01重量％
のリンを含み同様な焼鈍を行つた素材の15×10-7
に比べて２〜３倍大きくなつてシヤドウマスクと
しての色ずれ増加の原因となる。 By annealing (heat treating) the Fe-Ni alloy containing one or more selected from phosphorus, arsenic, and antimony, the average elemental concentration in the grains (P, As, Sb) at the grain boundaries can be reduced. It is possible to obtain a material with a low 0.2% yield strength. Such heat treatments include, for example, (a) heating the material to the austenite region in the Fe-Ni phase diagram and then returning it to room temperature; (b) heating the material to the austenite region in the Fe-Ni phase diagram; There is a method of aging treatment to a temperature lower than that temperature and returning it to room temperature. Specifically, when a material containing phosphorus is annealed at 800℃, it becomes curve A in Figure 2, which shows the relationship between the amount of phosphorus added and 0.2% proof stress, and when it is annealed at 1100℃, it becomes curve A in Figure 2. This becomes curve B. From this figure 2, depending on the annealing temperature,
A change occurs in the value of 0.2% yield strength. However, the tendency of the 0.2% proof stress value depending on the amount of phosphorus added is the same. In particular, when the amount of phosphorus added is 0.1% by weight or more, the coefficient of thermal expansion becomes 25×10 -7 to 50×10 -7 when measured after annealing the material at 950°C, which is 0.01% by weight.
15×10 -7 of material containing phosphorus and subjected to similar annealing.
It is two to three times larger than the original size, which causes an increase in color shift when used as a shadow mask.
なお、前記熱処理方法においては昇温速度、保
持温度や時間、降温速度により材料の結晶粒径や
粒界に濃縮される元素濃度に差が生じるので、元
素の含有量に対応してそれらの条件を選定する必
要がある。但し、中間の強加工を加えない場合の
方が効果的に材料の耐力や引張り強度を下げられ
る傾向にある。 In addition, in the above heat treatment method, differences occur in the crystal grain size of the material and the concentration of elements concentrated at grain boundaries depending on the heating rate, holding temperature and time, and cooling rate. It is necessary to select However, the yield strength and tensile strength of the material tend to be lowered more effectively when intermediate heavy processing is not applied.
（作用）
本発明に用いる30〜37重量％Ni、残部が実質
的に鉄からなるFe−Ni合金にリン、砒素、アン
チモンから選ばれる１種又は２種以上を0.002〜
0.1重量％含む材料は、耐力や引張り強度の低い
性質を有し、成形性に優れているため、これをカ
ラー受像管に適用すれば、高精度の成形が可能と
なる。特に、シヤドウマスクの形成に利用する
と、スプリングバツクの少ない正常な球面をもつ
シヤドウマスクを実現できる。(Function) One or more selected from phosphorus, arsenic, and antimony is added to the Fe-Ni alloy of 30 to 37% by weight of Ni and the balance is substantially iron for use in the present invention in an amount of 0.002% to 37% by weight.
A material containing 0.1% by weight has low proof stress and tensile strength and is excellent in moldability, so if this is applied to a color picture tube, high-precision molding will be possible. In particular, when used to form a shadow mask, a shadow mask having a normal spherical surface with little spring back can be realized.
（実施例） 以下、本発明の実施例を詳細に説明する。(Example) Examples of the present invention will be described in detail below.
実施例 １
まず、Ni35.6重量％、Si0.02重量％、Mn0.1重
量％、P0.005重量％及び残部Feからなる合金
（インバー）のインゴツト用意し、焼鈍、熱間、
冷間加工を繰り返して厚さ0.15mmの板材を作製し
た。つづいて、この板材に感光剤を塗布、露光、
現像、バーニングによるエツチングを施して多数
の穴を有するフラツトマスク素材を作製した。ひ
きつづき、フラツトマスク素材を950℃で真空焼
鈍を行ない、炉冷した後、700℃で１時間保持し、
更に不活性ガス中に封入し、室温まで冷却した。
次いで、プレス加工も施し、脱脂、酸洗、水洗し
た後、空気中にて600℃で30分間黒化処理してシ
ヤドウマスクを製造した。Example 1 First, an ingot of an alloy (invar) consisting of 35.6% by weight Ni, 0.02% by weight Si, 0.1% by weight Mn, 0.005% by weight P, and the balance Fe was prepared, and annealed, hot,
A plate with a thickness of 0.15 mm was produced by repeated cold working. Next, a photosensitive agent was applied to this plate material, exposed to light,
A flat mask material having many holes was prepared by developing and etching by burning. Subsequently, the flat mask material was vacuum annealed at 950℃, cooled in a furnace, and held at 700℃ for 1 hour.
Furthermore, it was sealed in an inert gas and cooled to room temperature.
Next, it was pressed, degreased, pickled, washed with water, and then blackened in air at 600°C for 30 minutes to produce a shadow mask.
実施例 ２
Ni36.1重量％、Si0.03重量％、Mn0.12重量、
P0.05重量％及び残部FeからなるNi−Fe合金を用
いた以外、実施例１と同様な方法によりシヤドウ
マスクを製造した。Example 2 Ni36.1% by weight, Si0.03% by weight, Mn0.12% by weight,
A shadow mask was manufactured in the same manner as in Example 1 except that a Ni--Fe alloy consisting of 0.05% by weight of P and the remainder Fe was used.
実施例 ３
Ni35.8重量％、Si0.04重量％、Mn0.15重量％、
P0.07重量％及び残部FeからなるNi−Fe合金を用
いた以外、実施例１と同様な方法によりシヤドウ
マスクを製造した。Example 3 Ni35.8% by weight, Si0.04% by weight, Mn0.15% by weight,
A shadow mask was manufactured in the same manner as in Example 1 except that a Ni--Fe alloy consisting of 0.07% by weight of P and the remainder Fe was used.
比較例 １
Ｐを0.0005重量％含む以外は実施例１と同様な
組成のNi−Fe合金を用い、同実施例１と同様な
方法によりシヤドウマスクを製造した。Comparative Example 1 A shadow mask was manufactured in the same manner as in Example 1 using a Ni-Fe alloy having the same composition as in Example 1 except that it contained 0.0005% by weight of P.
しかして、本実施例１〜３及び比較例１のシヤ
ドウマスクの状態を調べた。その結果、比較例１
のシヤドウマスクはスプリングバツクを生じ、マ
スク周辺がへこむ現象が認められた。これに対し
本実施例１〜３のシヤドウマスクはスプリングバ
ツク現象はほとんど認められないか、或いは比較
例１より少なく、良好な特性を有していた。 Therefore, the conditions of the shadow masks of Examples 1 to 3 and Comparative Example 1 were investigated. As a result, Comparative Example 1
It was observed that the shadow mask had springback and the area around the mask was dented. On the other hand, the shadow masks of Examples 1 to 3 had good characteristics, with almost no springback phenomenon observed or less than that of Comparative Example 1.
また、本実施例１〜３及び比較例１において、
プレス前のフラツトマスク素材を打ち抜いて試験
片を作製し、これら試験片の引張り強さ及び破断
強さを測定した。その結果、実施例１〜３の試験
片は比較例１の試験片に比べて引張り強さ及び破
断強さがそれぞれ２Kg／mm2、1.5Kg／mm2、1.0Kgmm2
程度低下していた。 In addition, in Examples 1 to 3 and Comparative Example 1,
Test pieces were prepared by punching out the flat mask material before pressing, and the tensile strength and breaking strength of these test pieces were measured. As a result, the tensile strength and breaking strength of the test pieces of Examples 1 to 3 were 2Kg/mm 2 , 1.5Kg/mm 2 , and 1.0Kgmm 2 compared to the test piece of Comparative Example 1, respectively.
The level was decreasing.
更に、実施例２のＰを0.05重量％含むNi−Fe
合金から作成されたフラツトマスク素材の試料に
ついて粒内及び粒界の状態をオージエ電子分光装
置を用いて調べたところ、第３図ａ，ｂに示す結
果を得た。この第３図より、粒界にはＰが検出さ
れるが、粒内においてはＰが検出限界以下である
ことから、Ｐは粒界に濃縮して粒界脆化を起こし
ていることがわかる。なお、実施例１、３のNi
−Fe合金から作製されたフラツトマスク素材は
ともに第３図とほぼ同様な結果が得られた。 Furthermore, Ni-Fe containing 0.05% by weight of P in Example 2
When a sample of a flat mask material made from an alloy was examined for the state of grain interior and grain boundaries using an Auger electron spectrometer, the results shown in FIGS. 3a and 3b were obtained. From this Figure 3, it can be seen that P is detected at the grain boundaries, but since P is below the detection limit inside the grains, P is concentrated at the grain boundaries and causes grain boundary embrittlement. . In addition, Ni in Examples 1 and 3
For both flat mask materials made from -Fe alloys, almost the same results as shown in FIG. 3 were obtained.
実施例 ４
Ni36.1重量％、Si0.01重量％、Mn0.2重量％、
As0.005重量％及び残部FeからなるNi−Fe合金
を用いた以外、実施例１と同様な方法によりシヤ
ドウマスクを製造した。Example 4 Ni36.1% by weight, Si0.01% by weight, Mn0.2% by weight,
A shadow mask was manufactured in the same manner as in Example 1 except that a Ni--Fe alloy consisting of 0.005% by weight of As and the remainder Fe was used.
実施例 ５
Ni36.2重量％、Si0.01重量％、Mn0.15重量％、
As0.02重量％及び残部FeからなるNi−Fe合金を
用いた以外、実施例１と同様な方法によりシヤド
ウマスクを製造した。Example 5 Ni36.2% by weight, Si0.01% by weight, Mn0.15% by weight,
A shadow mask was manufactured in the same manner as in Example 1, except that a Ni--Fe alloy consisting of 0.02% by weight of As and the remainder Fe was used.
実施例 ６
Ni35.7重量％、Si0.02重量％、Mn0.22重量％、
As0.05重量％及び残部FeからなるNi−Fe合金を
用いた以外、実施例１と同様な方法によりシヤド
ウマスクを製造した。Example 6 Ni35.7% by weight, Si0.02% by weight, Mn0.22% by weight,
A shadow mask was manufactured in the same manner as in Example 1 except that a Ni--Fe alloy consisting of 0.05% by weight of As and the balance Fe was used.
比較例 ２
Asを0.0005重量％含む以外は実施例４と同様
な組成のNi−Fe合金を用い、前記実施例１と同
様な方法によりシヤドウマスクを製造した。Comparative Example 2 A shadow mask was manufactured in the same manner as in Example 1 using a Ni-Fe alloy having the same composition as in Example 4 except that it contained 0.0005% by weight of As.
しかして、本実施例４〜６及び比較例２のシヤ
ドウマスクの状態を調べた。その結果、比較例３
のシヤドウマスクはスプリングバツクを生じ、マ
スク周辺がへこむ現象が認められた。これに対
し、本実施例４〜６のシヤドウマスクはスプリン
グバツク現象はほとんど認められないか、或いは
比較例３より少なく良好な特性を有していた。 Therefore, the conditions of the shadow masks of Examples 4 to 6 and Comparative Example 2 were investigated. As a result, Comparative Example 3
It was observed that the shadow mask had springback and the area around the mask was dented. On the other hand, the shadow masks of Examples 4 to 6 had good characteristics with almost no springback phenomenon or less than that of Comparative Example 3.
また、本実施例４〜６及び比較例２において、
プレス前のフラツトマスク素材を打ち抜いて試験
片を作製し、これら試験片の引張り強さ及び破断
強さを測定した。その結果、実施例４〜６の試験
片は比較例２の試験片に比べて引張り強さ及び破
断強さがそれぞれ2.0Kg／mm2、1.5Kg／mm2、1.0Kg／
mm2程度低下していた。 In addition, in Examples 4 to 6 and Comparative Example 2,
Test pieces were prepared by punching out the flat mask material before pressing, and the tensile strength and breaking strength of these test pieces were measured. As a result, the tensile strength and breaking strength of the test pieces of Examples 4 to 6 were 2.0 Kg/mm 2 , 1.5 Kg/mm 2 , and 1.0 Kg/mm 2 , respectively, compared to the test piece of Comparative Example 2.
It had decreased by about 2 mm.
実施例 ７
Ni36.0重量％、Si0.01重量％、Mn0.3重量％、
Sb0.007重量％及び残部FeからなるNi−Fe合金を
用いた以外、実施例１と同様な方法によりシヤド
ウマスクを製造した。Example 7 Ni36.0% by weight, Si0.01% by weight, Mn0.3% by weight,
A shadow mask was manufactured in the same manner as in Example 1, except that a Ni--Fe alloy consisting of 0.007% by weight of Sb and the balance Fe was used.
実施例 ８
Ni36.0重量％、Si0.01重量％、Mn0.2重量％、
P0.007重量％、As0.005重量％及び残部Feからな
るNi−Fe合金を用いた以外、実施例１と同様な
方法によりシヤドウマスクを製造した。Example 8 Ni36.0% by weight, Si0.01% by weight, Mn0.2% by weight,
A shadow mask was manufactured in the same manner as in Example 1, except that a Ni--Fe alloy consisting of 0.007% by weight of P, 0.005% by weight of As, and the balance Fe was used.
実施例 ９
Ni36.9重量％、Si0.01重量％、Mn0.15重量％、
S0.007重量％、P0.01重量％及び残部Feからなる
Ni−Fe合金を用いた以外、実施例１と同様な方
法によりシヤドウマスクを製造した。Example 9 Ni36.9% by weight, Si0.01% by weight, Mn0.15% by weight,
Consisting of S0.007% by weight, P0.01% by weight and the balance Fe
A shadow mask was manufactured in the same manner as in Example 1 except that Ni-Fe alloy was used.
実施例 10
Ni36.3重量％、Si0.01重量％、Mn0.1重量％、
Sb0.01重量％、P0.005重量％及び残部Feからな
るNi−Fe合金を用いた以外、実施例１と同様な
方法によりシヤドウマスクを製造した。Example 10 Ni36.3% by weight, Si0.01% by weight, Mn0.1% by weight,
A shadow mask was manufactured in the same manner as in Example 1, except that a Ni--Fe alloy consisting of 0.01% by weight of Sb, 0.005% by weight of P, and the balance Fe was used.
しかして、本実施例７〜10のシヤドウマスクの
状態を調べたとろ、スプリングバツク現象はほと
んど認められないか、或いは前記比較例１より少
なく良好な特性を有していた。 However, when the conditions of the shadow masks of Examples 7 to 10 were examined, it was found that the spring back phenomenon was hardly observed or had less spring back phenomenon than that of Comparative Example 1.
また、本実施例７〜10において、プレス前のフ
ラツトマスク素材を打ち抜いて試験片を作製し、
これら試験片の引張り強さ及び破断強さを測定し
た。その結果、実施例７〜10の試験片は前記比較
例１の試験片に比べて引張り強さ及び破断強さが
それぞれ1.8Kg／mm2、2.0Kg／mm2、1.6Kg／mm2、1.1
Kg／mm2程度低下していた。 In addition, in Examples 7 to 10, test pieces were prepared by punching out the flat mask material before pressing,
The tensile strength and breaking strength of these test pieces were measured. As a result, the tensile strength and breaking strength of the test pieces of Examples 7 to 10 were 1.8 Kg/mm 2 , 2.0 Kg/mm 2 , 1.6 Kg/mm 2 , and 1.1 compared to the test piece of Comparative Example 1, respectively.
It had decreased by about Kg/ mm2 .
一方、前記実施例１〜10のシヤドウマスクを組
み込んだ第１図図示のカラー受像管に映像を写し
出したところ、いずれも安定した画像が得られ
た。特に、シヤドウマスク面周辺のへこみがない
ため、シヤドウマスク６とけい光面５の密着性が
保持され、電子ビーム１１が所望のマスク孔を通
過してけい光面５に正確に衝突した。こうした作
用は、マスク孔径が0.2mm程度の高品位カラー受
像管に有効であり、きめこまやかな画像が得られ
る。 On the other hand, when images were projected onto the color picture tube shown in FIG. 1 incorporating the shadow masks of Examples 1 to 10, stable images were obtained in all cases. In particular, since there are no depressions around the shadow mask surface, the adhesion between the shadow mask 6 and the phosphor surface 5 is maintained, and the electron beam 11 passes through desired mask holes and collides with the phosphor surface 5 accurately. This effect is effective for high-quality color picture tubes with a mask hole diameter of about 0.2 mm, and allows for the production of finely detailed images.
また、前記実施例１〜10のシヤドウマスクを組
込んだカラー受像管は、いずれもPD値が90μm以
下と極めて低い値を示した。更に、実施例１〜13
のシヤドウマスクを組込んだカラー受像管はハウ
リング防止に効果的である。しかも瞬間的な衝撃
を受けても色ずれは生じず、特に可聴低周波数域
の音波を多量に加えてもシヤドウマスクの振動が
少ないため、色ずれを防止できるばかりか、画像
のゆれも防止できる。 In addition, the color picture tubes incorporating the shadow masks of Examples 1 to 10 all exhibited extremely low PD values of 90 μm or less. Furthermore, Examples 1 to 13
A color picture tube incorporating a shadow mask is effective in preventing howling. In addition, color shifts do not occur even when subjected to momentary shocks, and since the shadow mask has little vibration even when a large amount of sound waves in the audible low frequency range is applied, not only color shifts can be prevented, but image shaking can also be prevented.
［発明の効果］
以上詳述した如く、本発明によれば30〜37重量
％Ni、残部が実質的にFeからなるFe−Ni合金に
Ｐ，As，Sbから選ばれる１種又は２種以上を所
定量含み、成形加工が良好な材料によりシヤドウ
マスク等を形成することによつて、スプリングバ
ツク等のない高精度のシヤドウマスクを実現で
き、色ずれ、画像のゆれなどが少なく衛星放送等
の“きめ細やかさ”、“見やすさ”が重視される高
品位テレビ画像を容易に実現し得るカラー受像管
を提供できる。[Effects of the Invention] As detailed above, according to the present invention, one or more types selected from P, As, and Sb are added to an Fe-Ni alloy consisting of 30 to 37% by weight Ni and the balance substantially Fe. By forming a shadow mask, etc. from a material that contains a predetermined amount and is well processed, it is possible to create a highly accurate shadow mask without springback, etc., and with minimal color shift or image shaking, which is ideal for satellite broadcasting, etc. It is possible to provide a color picture tube that can easily realize high-quality television images where "detail" and "ease of viewing" are important.
第１図はカラー受像管を示す断面図、第２図
は、36重量％Ni、残部が実質的にFeからなるNi
−Fe合金中のＰ添加量と焼鈍後の0.2％耐力との
関係を示す図、第３図ａ，ｂは本発明の実施例２
のフラツトマスク素材から得られた試料における
粒内及び粒界の状態をオージエ電子分光装置で分
析した図である。
１……外囲器、３……電子銃、５……けい光
面、６……シヤドウマスク、７……フレーム、９
……インナーシールド、１１……電子ビーム。
Fig. 1 is a cross-sectional view showing a color picture tube, and Fig. 2 is a sectional view of a color picture tube, and Fig. 2 is a sectional view of a color picture tube.
- A diagram showing the relationship between the amount of P added in the Fe alloy and the 0.2% proof stress after annealing, Figures 3a and b are Example 2 of the present invention
FIG. 2 is a diagram obtained by analyzing the state of grains and grain boundaries in a sample obtained from a flat mask material using an Auger electron spectrometer. 1... Envelope, 3... Electron gun, 5... Fluorescent surface, 6... Shadow mask, 7... Frame, 9
...Inner shield, 11...Electron beam.
Claims (1)
ルドのうちの少なくとも１つの部材を、30〜37重
量％Ni、残部が実質的に鉄からなるFe−Ni合金
にリン、砒素、アンチモンから選ばれる１種又は
２種以上を0.002〜0.1重量％含む材料より形成し
たことを特徴とするカラー受像管。 ２ 前記部材のうちの少なくとも１つを、焼鈍に
より結晶粒界の平均元素濃度を粒内の平均元素濃
度よりも高くしたことを特徴とする特許請求の範
囲第１項記載のカラー受像管。[Claims] 1. At least one member of the shadow mask, frame, and inner shield is made of an Fe-Ni alloy consisting of 30 to 37% by weight Ni and the remainder substantially iron selected from phosphorus, arsenic, and antimony. 1. A color picture tube characterized in that it is formed from a material containing 0.002 to 0.1% by weight of one or more kinds. 2. The color picture tube according to claim 1, wherein at least one of the members is annealed so that the average element concentration at the grain boundaries is higher than the average element concentration within the grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10778084A JPS60251253A (en) | 1984-05-28 | 1984-05-28 | Color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10778084A JPS60251253A (en) | 1984-05-28 | 1984-05-28 | Color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60251253A JPS60251253A (en) | 1985-12-11 |
| JPH0359975B2 true JPH0359975B2 (en) | 1991-09-12 |
Family
ID=14467830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10778084A Granted JPS60251253A (en) | 1984-05-28 | 1984-05-28 | Color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60251253A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6425944A (en) * | 1987-04-27 | 1989-01-27 | Nippon Mining Co | Shadow mask material |
| JP2565058B2 (en) * | 1992-07-06 | 1996-12-18 | 日本鋼管株式会社 | Fe-Ni alloy cold rolled sheet for shadow mask excellent in blackening processability and method for producing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55100959A (en) * | 1979-01-26 | 1980-08-01 | Nisshin Steel Co Ltd | Invar alloy with excellent welding high temperature crack resistance and strain corrosion crack resistance |
| JPS55152153A (en) * | 1979-05-15 | 1980-11-27 | Nisshin Steel Co Ltd | Invar alloy having good welding property |
-
1984
- 1984-05-28 JP JP10778084A patent/JPS60251253A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55100959A (en) * | 1979-01-26 | 1980-08-01 | Nisshin Steel Co Ltd | Invar alloy with excellent welding high temperature crack resistance and strain corrosion crack resistance |
| JPS55152153A (en) * | 1979-05-15 | 1980-11-27 | Nisshin Steel Co Ltd | Invar alloy having good welding property |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60251253A (en) | 1985-12-11 |
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