JPH09263827A - Manufacture of stock for shadow mask, free from striped irregularity - Google Patents
Manufacture of stock for shadow mask, free from striped irregularityInfo
- Publication number
- JPH09263827A JPH09263827A JP8097392A JP9739296A JPH09263827A JP H09263827 A JPH09263827 A JP H09263827A JP 8097392 A JP8097392 A JP 8097392A JP 9739296 A JP9739296 A JP 9739296A JP H09263827 A JPH09263827 A JP H09263827A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- shadow mask
- ingot
- less
- weight
- 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
Links
Landscapes
- Heat Treatment Of Steel (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はエッチングによって
多数の電子ビーム通過孔を穿孔したとき、スジむらの発
生しないシャドウマスク用素材の製造方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a material for a shadow mask, which does not cause uneven streaks when a large number of electron beam passage holes are formed by etching.
【０００２】[0002]
【従来の技術】カラーテレビ用ブラウン管やＯＡ機器の
ディスプレイ等の受像管には、多数の電子ビーム通過孔
が形成されたシャドウマスクが組み込まれている。電子
銃から射出された電子ビームは、特定のビーム通過孔を
通過し、各色調に応じてそれぞれの蛍光部にビームスポ
ットを投影する。シャドウマスク用素材としては、正確
な電子ビーム通過孔が形成されるようにエッチング性に
優れていることが要求され、低炭素Ａｌキルド鋼が従来
から使用されている。しかし、シャドウマスクは、電子
ビームの衝突によって加熱され、熱膨張する。このとき
の熱膨張量が大きいと、シャドウマスクの電子ビーム通
過孔の位置が変位し、電子ビームが所定の蛍光面に当た
らなくなるドーミング現象が発生する。2. Description of the Related Art A cathode ray tube for a color television or a picture tube such as a display of an OA device incorporates a shadow mask having a large number of electron beam passage holes. The electron beam emitted from the electron gun passes through a specific beam passage hole and projects a beam spot on each fluorescent portion according to each color tone. As a material for a shadow mask, it is required that the material has excellent etching properties so that an accurate electron beam passage hole is formed, and a low-carbon Al-killed steel is conventionally used. However, the shadow mask is heated by the collision of the electron beam and thermally expands. If the amount of thermal expansion at this time is large, the position of the electron beam passage hole of the shadow mask is displaced, and a doming phenomenon occurs in which the electron beam does not hit a predetermined fluorescent screen.
【０００３】ドーミング現象は、カラーテレビ、ディス
プレイ等の高精度化、高輝度化に伴って大きな問題とな
っている。ドーミング現象は、低熱膨張特性をもった素
材の使用によって抑制されることから、熱膨張率の小さ
なＦｅ−Ｎｉ系合金がシャドウマスク用素材として使用
されるようになっている。しかし、Ｆｅ−Ｎｉ系合金は
Ｎｉを多量に含んでいることから、低炭素Ａｌキルド鋼
に比較して素材価格が高いことはもちろん、大きな強度
を保ち、プレス成形性に劣る。また、ヤング率が低くシ
ャドウマスクとしての剛性に劣ること、エッチング穿孔
性にも劣るなどの欠点がある。そこで、シャドウマスク
用素材として要求される特性を満足するように、Ｆｅ−
Ｎｉ系合金を改質する試みが種々提案されている。なか
でも、エッチング後のシャドウマスク用素材表面に現れ
るスジむらは、ブラウン管の品位を低下させるため、集
合組織の調整（特開平１−２４７５５８号公報）、焼鈍
および圧延の繰り返しによるＮｉ偏析の解消（特開平２
−５０９１９号公報）、ソーキングによる成分偏析の解
消（特開平２−１１７７０３号公報）等によりスジむら
の発生を抑制する方法が開示されている。さらに、特開
平２−５４７４３号公報では不純物元素の成分偏析およ
び凝固組織の相違がスジむら発生の原因であるとして、
偏析の解消と組織の均一化が提案されている。また、特
開平２−１０１１５号にはすえ込み鍛錬による鋳造組織
の破壊とスジむら抑制の方策を提示している。The doming phenomenon has become a serious problem as the precision and brightness of color televisions, displays and the like have increased. Since the doming phenomenon is suppressed by using a material having a low thermal expansion characteristic, an Fe-Ni alloy having a small coefficient of thermal expansion has been used as a material for a shadow mask. However, since the Fe-Ni alloy contains a large amount of Ni, not only the material price is higher than that of the low carbon Al killed steel, but also the strength is high and the press formability is poor. In addition, there are drawbacks such as low Young's modulus and poor rigidity as a shadow mask, and poor etching piercing property. Therefore, in order to satisfy the characteristics required for the shadow mask material, Fe-
Various attempts have been made to modify Ni-based alloys. Among them, streak unevenness appearing on the surface of the material for the shadow mask after etching lowers the quality of the cathode ray tube, and therefore the texture is adjusted (JP-A-1-247558), and Ni segregation is eliminated by repeating annealing and rolling ( JP-A-2
No. -50919) and a method of suppressing the occurrence of streak unevenness by eliminating component segregation due to soaking (Japanese Patent Application Laid-Open No. 2-117703). Further, in Japanese Patent Application Laid-Open No. 2-54743, it is stated that the segregation of impurities and the difference in solidification structure cause the streak unevenness.
It has been proposed to eliminate segregation and homogenize the structure. Further, Japanese Patent Laid-Open No. 2-10115 proposes a method for suppressing the destruction of the cast structure and streak unevenness by upsetting.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、最近の
カラーテレビおよびディスプレイの大型化、画質の高精
細化に対する要求は過酷であり、この要求に応じてこれ
まで以上に孔径が小さく、かつ孔数も多く、孔と孔のピ
ッチも細かいシャドウマスクが要求されるようになって
きている。そのため、従来提案された方法を用いても高
品位が要求されるシャドウマスクにとってはスジむらの
解消が十分でないのが実状である。本発明は、このよう
な問題を解消すべく案出されたのものであり、シャドウ
マスク用素材の表面を３０〜７０％エッチングしたとき
の表面状態がスジむらの発生と密接な関係を持っている
ことに着目し、素材表面を３０〜７０％エッチングした
後の腐食面を指標として管理することにより、スジむら
のない高品位のシャドウマスク用素材を得ることを目的
とする。However, recent demands for large-sized color televisions and displays and high definition of image quality are severe, and in response to this demand, the pore diameter is smaller than ever and the number of pores is also smaller. In many cases, a shadow mask with a fine hole and a fine pitch is required. Therefore, in reality, even if the conventionally proposed method is used, it is not sufficient to eliminate streak unevenness for a shadow mask that requires high quality. The present invention has been devised to solve such a problem, and the surface condition when the surface of the material for the shadow mask is etched by 30 to 70% has a close relationship with the occurrence of streak unevenness. The objective is to obtain a high-quality shadow mask material with no streaks by controlling the corroded surface after etching the material surface by 30 to 70% as an index.
【０００５】[0005]
【課題を解決するための手段】本発明のシャドウマスク
用素材は、Ｎｉ：３０〜５０重量％、Ｃｒ：０．０１〜
１．０重量％、Ｃ：０．０１５重量％以下、Ｓｉ：０．
２重量％以下、Ｍｎ：０．５重量％以下、Ａｌ：０．０
２重量％以下およびＢ：０．０００１〜０．００４０重
量％を含むＦｅ−Ｎｉ系合金を鋳塊とし、総圧下比が
３．５以上となるように分塊圧延、あるいはさらに鋳造
組織が放射状に成長した断面形状を有するものを用い、
分塊圧延する工程で再加熱を１回以上繰り返し、熱間圧
延した後、焼鈍と冷間圧延を２回以上繰り返すことによ
り製造される。さらに、分塊圧延は鋳塊を１２００℃以
上で６時間以上加熱後、１０％以上の圧延率で分塊を繰
り返すことでさらにスジむらのない高品質なシャドウマ
スク用素材を得ることができる。The material for the shadow mask of the present invention is Ni: 30 to 50% by weight, Cr: 0.01 to.
1.0% by weight, C: 0.015% by weight or less, Si: 0.
2% by weight or less, Mn: 0.5% by weight or less, Al: 0.0
Fe-Ni alloy containing 2% by weight or less and B: 0.0001 to 0.0040% by weight is used as an ingot, and is slab-rolled so that the total reduction ratio is 3.5 or more, or the casting structure is radial. With a cross-sectional shape that has grown to
It is manufactured by repeating reheating once or more in the slab rolling process, hot rolling, and then repeating annealing and cold rolling twice or more. Further, in the slabbing, the ingot is heated at 1200 ° C. or higher for 6 hours or more, and then the slabbing is repeated at a rolling rate of 10% or more, whereby a high-quality shadow mask material without streaks can be obtained.
【０００６】[0006]
【発明の実施の形態】シャドウマスク用素材は、通常、
Ｆｅ−Ｎｉ系合金を溶製した後、直方体の鋳型に鋳造・
造塊された後、分解圧延→熱間圧延→酸洗→冷間圧延→
焼鈍→圧延の工程を経て製造される。造塊時に形成され
る特定方位を持つ鋳造組織はこの後の分塊圧延、熱間圧
延工程を経て分断、破壊されていくが、スジむらの原因
とされる結晶方位の偏りを解消させるためには、鋳造後
において多くの工程が必要になり、かつ、各工程におけ
る通板条件が厳しく規制される。このように厳しく製造
条件を規制した材料においても完全には偏りが解消され
てはおらず、やはりスジむらが発生する。BEST MODE FOR CARRYING OUT THE INVENTION
After melting the Fe-Ni alloy, cast it in a rectangular parallelepiped mold.
After ingot casting, decomposition rolling → hot rolling → pickling → cold rolling →
It is manufactured through the process of annealing → rolling. The cast structure with a specific orientation that is formed during ingot formation is divided and destroyed through the subsequent slabbing and hot rolling processes, but in order to eliminate the deviation of the crystal orientation that causes streak unevenness. Requires many steps after casting, and the sheet passing conditions in each step are strictly regulated. Even in such a material whose manufacturing conditions are strictly regulated, the deviation is not completely eliminated, and streaks are still generated.
【０００７】そこで、本発明者らは特定方位を持つ鋳造
組織を効果的に分断・破壊し、解消するための方策を検
討した結果、鋳塊を１２５０℃以上の温度で６時間以上
加熱した後、分塊圧延工程中で２回以上の再加熱を施す
ことにより、分塊圧延後の鋳造組織が破壊されることを
見いだし、特願平８−４６６１６号において提案した。
その後さらに検討した結果、分塊圧延の総圧下比が３．
５以上となる厚みを持つ鋳塊であれば、分塊圧延する工
程で再加熱を少なくとも１回施すことで、前提案と同程
度の鋳造組織の破壊効果が得られることを見いだした。
また、それに加えて、鋳造組織が放射状に成長した断面
形状を持つ鋳塊を用いることで、より効果的に鋳造組織
が破壊されることを見いだした。さらに分塊圧延時には
鋳塊を１２００℃以上で６時間以上加熱後、１０％以上
の圧延率で分塊圧延を行い、再加熱を１回以上行うこと
がさらに効果的である。ここで再加熱においては、鋳造
組織を破壊する上から、１０％以上圧下した後で１２０
０℃以上で２時間以上の加熱をする事が必要となる。Therefore, as a result of examining the measures for effectively breaking / breaking and eliminating the cast structure having a specific orientation, the present inventors have found that after the ingot is heated at a temperature of 1250 ° C. or higher for 6 hours or more. It was found that the cast structure after slabbing is destroyed by performing reheating twice or more in the slabbing process, and it was proposed in Japanese Patent Application No. 8-46616.
As a result of further study after that, the total rolling reduction ratio of the slabbing was 3.
It has been found that, if the ingot has a thickness of 5 or more, by performing reheating at least once in the slab-rolling process, the same effect of destructing the cast structure as the previous proposal can be obtained.
In addition, in addition to that, it was found that the cast structure was destroyed more effectively by using an ingot having a cross-sectional shape in which the cast structure was radially grown. Further, it is more effective to heat the ingot at 1200 ° C. or more for 6 hours or more, perform slab rolling at a rolling rate of 10% or more, and reheat at least once during slab rolling. Here, in reheating, from the point of destroying the cast structure, 120% after pressing down by 10% or more.
It is necessary to heat at 0 ° C or higher for 2 hours or longer.
【０００８】以下に本発明におけるＦｅ−Ｎｉ合金の成
分および製造法の限定理由について述べる。 Ｎｉ：３０〜５０重量％ Ｆｅ−Ｎｉ系合金の熱膨張係数を低く維持する上で重要
な合金元素であり、熱膨張係数を低く維持するために
は、３０重量％以上のＮｉ含有量が必要である。しか
し、５０重量％を越えるＮｉ含有量では、耐力の上昇に
起因してプレス成形性が低下する。そこで、Ｎｉ含有量
を３０〜５０重量％に規制した。 Ｃｒ：０．０１〜１．０重量％ Ｆｅ−Ｎｉ系合金のエッチング速度を増大させるために
有効な作用を呈する元素であり、そのためには０．０１
重量％以上を必要とする。一方、Ｃｒは熱膨張係数を増
大させる欠点を持つ。そこで、Ｃｒ含有量を０．０１〜
１．０重量％以下の範囲に規制した。 Ｃ：０．０１５重量％以下 素材中に炭化物を形成し、エッチング性を損なう元素で
ある。そこで、本発明では０．０１５重量％以下に規制
した。 Ｓｉ：０．２重量％以下 脱酸材として添加される元素であるが、熱膨張係数を大
きくし、エッチング性や黒化膜性を劣化させる作用を呈
する。そのため、本発明においては０．２重量％以下に
規制した。 Ｍｎ：０．５重量％以下 脱酸剤として有効な元素であるが、熱膨張係数を大きく
する作用を呈するため０．５重量％以下に規制した。 Ａｌ：０．０２重量％以下 硬質な介在物を形成し、表面疵の発生等によって表面品
質を劣化させる悪影響がある。そこで、本発明において
は０．０２重量％以下に規制した。 Ｂ：０．００４０重量％以下 エッチング速度を増加させる有効な元素であるが、０．
００４％を越えると軟化焼鈍後に焼鈍むらが生じ易くな
り、黒化膜の生成むらを助長する。そのため、Ｂ量は
０．００４０重量％以下に規制した。その他不可避的成
分としてＳ，Ｐ，Ｏ，Ｎなどがあり、これらの元素が合
金中に含まれる量はそれぞれ０．０１０重量％以下であ
り、この程度の含有量であればシャドウマスク用素材と
しての性能に悪影響を及ぼさない。The components of the Fe-Ni alloy in the present invention and the reasons for limiting the manufacturing method will be described below. Ni: 30 to 50 wt% It is an important alloying element for keeping the thermal expansion coefficient of the Fe-Ni alloy low, and a Ni content of 30 wt% or more is necessary to keep the thermal expansion coefficient low. Is. However, when the Ni content exceeds 50% by weight, the press formability decreases due to the increase in yield strength. Therefore, the Ni content is restricted to 30 to 50% by weight. Cr: 0.01 to 1.0% by weight An element that exhibits an effective action for increasing the etching rate of a Fe-Ni alloy, and for that purpose, 0.01
Requires more than weight percent. On the other hand, Cr has the drawback of increasing the coefficient of thermal expansion. Therefore, the Cr content is 0.01 to
The content was regulated within the range of 1.0% by weight or less. C: 0.015% by weight or less An element that forms a carbide in the material and impairs the etching property. Therefore, in the present invention, the amount is controlled to 0.015% by weight or less. Si: 0.2 wt% or less It is an element added as a deoxidizing agent, but it has the effect of increasing the thermal expansion coefficient and deteriorating the etching property and the blackening film property. Therefore, in the present invention, the amount is regulated to 0.2% by weight or less. Mn: 0.5 wt% or less It is an element effective as a deoxidizing agent, but since it has an effect of increasing the thermal expansion coefficient, it is regulated to 0.5 wt% or less. Al: 0.02% by weight or less There is an adverse effect of forming hard inclusions and deteriorating the surface quality due to surface defects. Therefore, in the present invention, the amount is restricted to 0.02% by weight or less. B: 0.0040% by weight or less It is an effective element that increases the etching rate, but
When it exceeds 004%, uneven annealing is likely to occur after softening annealing, which promotes uneven formation of a blackened film. Therefore, the B content is limited to 0.0040% by weight or less. Other unavoidable components include S, P, O, N, etc., and the amount of each of these elements contained in the alloy is 0.010% by weight or less. Does not adversely affect the performance of.
【０００９】分塊圧延時の総圧下比：３．５以上 この分塊圧延の総圧下比が３．５未満である場合は、鋳
造組織が十分に破壊されない。スジむらの原因である特
定方位を持つ鋳造組織を分塊圧延時の変形により十分に
分断・破壊するためには、分塊圧延時の総圧下比は３．
５以上必要である。 鋳塊の組織：鋳造組織が放射状に成長した断面を持つ形
状 総圧下比の効果に加えて、さらに効果的に特定方位を持
つ鋳造組織を分断・破壊するために、鋳造組織が放射状
に成長した断面を持つ鋳塊を用いる必要がある。 分塊圧延時の再加熱数：１回以上、１回当たりの分塊圧
延率：１０％以上 分塊圧延により鋳造組織を十分に破壊し、均質な組織を
得るためには分塊圧延時の１回当たりの圧延率を１０％
以上、分塊圧延中に再加熱を１回以上施す必要がある。
また、初期の加熱は凝固時に発生する成分偏析を解消す
るために１２００℃以上でかつ６時間以上、分塊圧延中
の再加熱は均質な組織を得るために１２００℃以上で２
時間以上実施する必要がある。Total reduction ratio during slab rolling: 3.5 or more If the total reduction ratio in this slab rolling is less than 3.5, the cast structure is not sufficiently destroyed. In order to sufficiently cut and destroy the cast structure having a specific orientation, which is the cause of streaks, by deformation during slabbing, the total reduction ratio during slabbing is 3.
5 or more is required. Ingot structure: A shape with a cross section in which the casting structure has grown radially. In addition to the effect of the total reduction ratio, the casting structure has grown radially in order to more effectively divide and break the casting structure having a specific orientation. It is necessary to use an ingot with a cross section. Reheating number during slabbing: 1 time or more, slabbing rate per time: 10% or more In order to sufficiently destroy the cast structure by slabbing and obtain a homogeneous structure, Rolling rate per time is 10%
As described above, it is necessary to perform reheating at least once during the slabbing.
Further, the initial heating is performed at 1200 ° C. or higher for 6 hours or longer to eliminate the component segregation that occurs during solidification, and the reheating during slab rolling is performed at 1200 ° C. or higher to obtain a uniform structure.
It is necessary to carry out more than time.
【００１０】[0010]
【実施例】表１に示す化学組成のＦｅ−Ｎｉ系合金を溶
製し、鋳型Ａ，Ｂを用いて９トンのインゴットを作成し
た。鋳塊の断面形状を図１に示す。これらの鋳塊を表２
に示す各製造条件で分塊圧延し、熱間圧延により６ｍｍ
ｔに仕上げた。この熱延鋼帯に焼鈍と冷延を繰り返し、
最終的に０．１２ｍｍｔの冷延鋼帯とした。Example An Fe-Ni alloy having the chemical composition shown in Table 1 was melted, and molds A and B were used to prepare a 9-ton ingot. The sectional shape of the ingot is shown in FIG. Table 2 shows these ingots.
6 mm by slabbing and hot rolling under each manufacturing condition shown in
finished to t. Repeated annealing and cold rolling on this hot rolled steel strip,
Finally, a 0.12 mmt cold rolled steel strip was obtained.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【表２】 [Table 2]
【００１３】得られた試料から試験片を切り出し、フォ
トエッチングにより実際のシャドウマスクのパターンに
穿孔を行い、シャドウマスクにおけるスジむら発生の有
無を目視判定した。結果を表３に示す。A test piece was cut out from the obtained sample, and an actual shadow mask pattern was perforated by photoetching, and the presence or absence of streak unevenness in the shadow mask was visually judged. The results are shown in Table 3.
【００１４】[0014]
【表３】 [Table 3]
【００１５】[0015]
【発明の効果】以上に説明したように、本発明によれ
ば、カラーテレビおよびディスプレイの高精細な画像品
位の要求に適したスジむらの発生しないシャドウマスク
用素材を供給できる。As described above, according to the present invention, it is possible to supply a material for a shadow mask, which is suitable for the demand for high definition image quality of color televisions and displays and which does not cause streaking.
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【手続補正書】[Procedure amendment]
【提出日】平成８年１０月３日[Submission date] October 3, 1996
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Correction target item name] Brief description of drawings
【補正方法】追加[Correction method] Added
【補正内容】[Correction contents]
【図面の簡単な説明】[Brief description of drawings]
【図１】 鋳塊の断面形状を表す図である。FIG. 1 is a diagram showing a cross-sectional shape of an ingot.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｊ 31/20 Ｈ０１Ｊ 31/20 Ａ (72)発明者 長谷川 守弘 山口県新南陽市野村南町4976番地 日新製 鋼株式会社技術研究所内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Reference number in the agency FI Technical indication location H01J 31/20 H01J 31/20 A (72) Inventor Morihiro Hasegawa 4976 Nomura Minamimachi, Shinnanyo, Yamaguchi Prefecture Nisshin Steel Co., Ltd.
Claims (3)
１〜１．０重量％、Ｃ：０．０１５重量％以下、Ｓｉ：
０．２重量％以下、Ｍｎ：０．５重量％以下、Ａｌ：
０．０２重量％以下およびＢ：０．０００１〜０．００
４０重量％を含むＦｅ−Ｎｉ系合金の製造工程におい
て、分塊圧延時の総圧下比が３．５以上になる鋳塊を分
解圧延する工程で、再加熱を１回以上繰り返し、熱間圧
延した後、焼鈍と冷間圧延を２回以上繰り返すことを特
徴とするエッチング時にスジむらが発生しないシャドウ
マスク用素材の製造方法。1. Ni: 30 to 50% by weight, Cr: 0.0
1 to 1.0 wt%, C: 0.015 wt% or less, Si:
0.2 wt% or less, Mn: 0.5 wt% or less, Al:
0.02% by weight or less and B: 0.0001 to 0.00
In a manufacturing process of an Fe-Ni alloy containing 40% by weight, reheating is repeated one or more times in a process of decomposing and rolling an ingot having a total rolling reduction ratio of 3.5 or more during slab rolling, and hot rolling. After that, annealing and cold rolling are repeated twice or more, and a method for producing a material for a shadow mask free from streaking unevenness during etching.
造工程において、断面の鋳造組織が放射状に成長した鋳
塊を用いることを特徴とするエッチング時にスジむらが
発生しないシャドウマスク用素材の製造方法。2. A material for a shadow mask which does not cause streak unevenness during etching, characterized in that an ingot having a cast structure of a cross section radially grown is used in the manufacturing process of the Fe—Ni alloy according to claim 1. Manufacturing method.
の製造工程において、鋳塊を１２００℃以上で６時間以
上加熱後、１０％以上の圧延率で分解圧延を行い、以後
１２００℃以上で２時間以上の再加熱と、圧延率１０％
以上で分解圧延を繰り返すことを特徴とするエッチング
時にスジむら発生のないシャドウマスク用素材の製造方
法。3. In the process for producing the Fe—Ni alloy according to claim 1, the ingot is heated at 1200 ° C. or higher for 6 hours or longer, and then decomposed and rolled at a rolling rate of 10% or higher, and then 1200. Reheating for 2 hours or more at ℃ or more, rolling rate 10%
A method for producing a material for a shadow mask, which is free from streaking during etching, characterized by repeating decomposition rolling as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09739296A JP3615300B2 (en) | 1996-03-28 | 1996-03-28 | Method for producing shadow mask material without uneven stripes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09739296A JP3615300B2 (en) | 1996-03-28 | 1996-03-28 | Method for producing shadow mask material without uneven stripes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09263827A true JPH09263827A (en) | 1997-10-07 |
| JP3615300B2 JP3615300B2 (en) | 2005-02-02 |
Family
ID=14191254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09739296A Expired - Fee Related JP3615300B2 (en) | 1996-03-28 | 1996-03-28 | Method for producing shadow mask material without uneven stripes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3615300B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1150145A (en) * | 1997-08-05 | 1999-02-23 | Nkk Corp | Production of low thermal expansion alloy sheet for electronic parts, excellent in segregation inhibiting effect and oxide layer inhibiting effect |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594701A (en) * | 1979-01-11 | 1980-07-18 | Nisshin Steel Co Ltd | Hot blooming method for invar alloy |
| JPH04168248A (en) * | 1990-10-31 | 1992-06-16 | Nkk Corp | Fe-ni alloy having excellent adhesion and seizure preventiveness at annealing and gas diffusibility and production thereof |
| JPH04354853A (en) * | 1991-05-31 | 1992-12-09 | Nkk Corp | Fe-ni alloy cold rolled sheet excellent in cleanliness and etching pierceability and its production |
| JPH057994A (en) * | 1991-07-05 | 1993-01-19 | Kobe Steel Ltd | Mold for continuous casting |
| JPH0751800A (en) * | 1993-08-11 | 1995-02-28 | Hitachi Cable Ltd | Method and device for producing perforated billet |
| JPH07150298A (en) * | 1993-11-29 | 1995-06-13 | Nisshin Steel Co Ltd | Material for shadow mask excellent in recrystallization property and its production |
| JPH07252604A (en) * | 1994-03-10 | 1995-10-03 | Nippon Steel Corp | Iron-nickel alloy excellent in etching characteristic and press formability |
-
1996
- 1996-03-28 JP JP09739296A patent/JP3615300B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594701A (en) * | 1979-01-11 | 1980-07-18 | Nisshin Steel Co Ltd | Hot blooming method for invar alloy |
| JPH04168248A (en) * | 1990-10-31 | 1992-06-16 | Nkk Corp | Fe-ni alloy having excellent adhesion and seizure preventiveness at annealing and gas diffusibility and production thereof |
| JPH04354853A (en) * | 1991-05-31 | 1992-12-09 | Nkk Corp | Fe-ni alloy cold rolled sheet excellent in cleanliness and etching pierceability and its production |
| JPH057994A (en) * | 1991-07-05 | 1993-01-19 | Kobe Steel Ltd | Mold for continuous casting |
| JPH0751800A (en) * | 1993-08-11 | 1995-02-28 | Hitachi Cable Ltd | Method and device for producing perforated billet |
| JPH07150298A (en) * | 1993-11-29 | 1995-06-13 | Nisshin Steel Co Ltd | Material for shadow mask excellent in recrystallization property and its production |
| JPH07252604A (en) * | 1994-03-10 | 1995-10-03 | Nippon Steel Corp | Iron-nickel alloy excellent in etching characteristic and press formability |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1150145A (en) * | 1997-08-05 | 1999-02-23 | Nkk Corp | Production of low thermal expansion alloy sheet for electronic parts, excellent in segregation inhibiting effect and oxide layer inhibiting effect |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3615300B2 (en) | 2005-02-02 |
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