JP2788244B2 - Mask support member and method of manufacturing the same - Google Patents
Mask support member and method of manufacturing the sameInfo
- Publication number
- JP2788244B2 JP2788244B2 JP63048176A JP4817688A JP2788244B2 JP 2788244 B2 JP2788244 B2 JP 2788244B2 JP 63048176 A JP63048176 A JP 63048176A JP 4817688 A JP4817688 A JP 4817688A JP 2788244 B2 JP2788244 B2 JP 2788244B2
- Authority
- JP
- Japan
- Prior art keywords
- supporting member
- mask supporting
- manufacturing
- mask
- joining
- 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 - Fee Related
Links
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、カラーテレビジョン受像管のマスク支持部
材およびその製造方法に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mask support member for a color television picture tube and a method of manufacturing the same.
カラーテレビジョン受像管では、電子ビームを受けて
シャドウマスクが加熱されると、熱膨張が生じて色ずれ
障害を起こす。このため、シャドウマスクをガラス容器
に対して弾性的に支持せしめるための支持部材として、
熱膨張係数が互いに異なる２枚の金属板を並接合したバ
イメタルが用いられており、代表的には高膨張側にはオ
ーステナイト系ステンレス鋼、例えばSUS304（Fe−18Cr
−8Ni）、低膨張側にはインバータ合金（Fe−36Ni）が
使用されている（特公昭47−3506号、特公昭49−9581号
等）。In a color television picture tube, when a shadow mask is heated by receiving an electron beam, thermal expansion occurs to cause a color shift failure. For this reason, as a support member for elastically supporting the shadow mask with respect to the glass container,
A bimetal in which two metal plates having different thermal expansion coefficients are joined in parallel is used. Typically, an austenitic stainless steel such as SUS304 (Fe-18Cr) is provided on the high expansion side.
-8Ni) and an inverter alloy (Fe-36Ni) is used on the low expansion side (JP-B-47-3506, JP-B-49-9581, etc.).
そして前記支持部材は、通常以下の製造方法により製
造せしめられていた。And the said support member was usually manufactured by the following manufacturing methods.
すなわち、それぞれに冷間圧延によって所定厚さに加
工された熱膨張係数が互いに異なる２枚の金属板（例え
ば前述のSUS304とインバー合金）をエレクトロンビーム
溶接（以下EBWと記す）等により並接合し、次いで所定
形状にプレス打抜し、その後概略第１図に示すような形
状に曲げ加工するものである。That is, two metal plates (for example, the above-described SUS304 and Invar alloy), each having a different thermal expansion coefficient and processed to a predetermined thickness by cold rolling, are joined in parallel by electron beam welding (hereinafter referred to as EBW) or the like. Then, it is press-punched into a predetermined shape, and then bent into a shape roughly as shown in FIG.
しかしながら、前記製造方法によるマスク支持部材で
は、ばね限界値（Kb）が小さいため、組立時に変形を生
じ易く、またカラー受像管の製造工程時に400〜600℃の
熱工程を経る際にヘタリを生じ易いといった問題があっ
た。However, in the mask supporting member according to the above-mentioned manufacturing method, the spring limit value (Kb) is small, so that it is easy to be deformed at the time of assembling. There was a problem that it was easy.
本発明の目的は、ばね限界値が大きく、高温でのヘタ
リが小さいばね特性に優れたマスク支持部材およびその
製造方法を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a mask supporting member having a large spring limit value, small settling at high temperatures, and excellent spring characteristics, and a method for manufacturing the same.
本発明者は種々検討した結果、所定の冷間加工後に、
所定温度範囲における焼なまし処理を施せば、ばね限界
値が大きく、高温でのヘタリが小さいばね特性に優れた
マスク支持部材を得られることを知見し、本発明を完成
するに至った。As a result of various studies, the present inventor has found that after a predetermined cold working,
The inventor has found that by performing an annealing treatment in a predetermined temperature range, it is possible to obtain a mask supporting member having a large spring limit value and a small settling at a high temperature and excellent in spring characteristics, and completed the present invention.
すわなち、熱膨張係数が互いに異なる２種の帯状金属
板を並接合して得られるマスク支持部材の製造方法にお
いて、前記マスク支持部材の少なくとも高膨張側金属
は、そのオーステナイト系ステンレス鋼素材に冷間加工
を施したのち、250〜600℃で焼なまし処理を行なうこと
により、ばね特性に優れたマスク支持部材を得ることが
可能となるのである。なお、本発明で言う並接あるいは
並接合という概念は、熱膨張係数が互いに異なる２種の
帯状金属板が接合している状態を意味し、その接合は２
条はもちろん、３条、４条など複数条の接合も含むもの
である。That is, in the method of manufacturing a mask supporting member obtained by joining two kinds of strip-shaped metal plates having different thermal expansion coefficients from each other, at least the high expansion-side metal of the mask supporting member is formed on the austenitic stainless steel material. By performing the annealing at 250 to 600 ° C. after the cold working, a mask supporting member having excellent spring characteristics can be obtained. In addition, the concept of parallel joining or parallel joining referred to in the present invention means a state where two kinds of strip-shaped metal plates having different thermal expansion coefficients are joined, and the joining is 2
Of course, this includes the joining of a plurality of articles such as three or four articles.
本発明において、冷間加工は、オーステナイト単相組
織である高膨張側合金（例えばSUS304）を加工誘起変態
により、マルテンサイトに変態させ硬化させる工程であ
る。なお、加工は並接前・後どちらでもよく、前後にま
たがっても構わない。並接後に行なった場合は、低膨張
側合金（インバー合金）も加工硬化するが、SUS304の硬
化が著しく大きいため、バイメタルとしてのばね特性は
高膨張側合金で支配されると考えてよい。この加工は、
加工率10％未満では効果が小さいため、10％以上で実施
するのが望ましい。In the present invention, cold working is a step of transforming a high expansion alloy (for example, SUS304), which is an austenitic single phase structure, into martensite by work-induced transformation and hardening. The processing may be performed before or after juxtaposition, and may be performed before and after. When performed after the parallel welding, the low expansion side alloy (Invar alloy) is also work hardened, but since the hardening of SUS304 is remarkably large, it may be considered that the spring property as a bimetal is dominated by the high expansion side alloy. This processing is
If the processing rate is less than 10%, the effect is small, so it is desirable to carry out the processing at 10% or more.
また、250〜600℃の焼なまし処理は、冷間加工時に導
入された転位に鋼中のＣやＮを固着せしめ、バイメタル
のばね特性を向上させるためのものである。したがっ
て、SUS304の組織や溶接性を変動させない範囲で、例え
ばＮを0.05〜0.25％の添加を行なうことはばね特性を向
上させる上で非常に有効である。この低温焼なましの効
果は、250℃未満ではＣやＮの拡散に長時間を要するた
め効果が小さく、また600℃を越えると過時効状態とな
り、軟化が起こり始める。よって250〜600℃に限定し
た。The annealing treatment at 250 to 600 ° C. is for fixing C and N in steel to dislocations introduced during cold working to improve the spring characteristics of the bimetal. Therefore, it is very effective to add 0.05 to 0.25% of N, for example, within the range that does not change the structure and weldability of SUS304, in order to improve the spring characteristics. The effect of the low-temperature annealing is small at less than 250 ° C. because it takes a long time for diffusion of C and N, and when it exceeds 600 ° C., it becomes overaged and softening starts to occur. Therefore, it was limited to 250 to 600 ° C.
なお、この焼なまし処理は冷間加工後の並接帯の状態
で行なってもよいが、冷間加工後の並接帯を打抜後製品
形状に曲げ成形加工し、その後に行なってもよい。前者
の場合製品形状への曲げ成形が若干難しくなること、成
形時の曲げ加工により折り曲げ部の特性が劣化すること
が考えられるため、焼きなまし処理は製品形状に曲げ成
形加工し、その後に行なうことが望ましい。並接帯の状
態および製品形状に曲げ成形加工した後の双方で行なっ
ても良い。This annealing treatment may be performed in the state of the parallel band after cold working, but may also be performed by bending the parallel band after cold working into a product shape after punching, and thereafter. Good. In the former case, the bending process into the product shape becomes slightly difficult, and the characteristics of the bent portion may deteriorate due to the bending process during the forming process. desirable. It may be performed both in the state of the parallel band and after the bending processing into the product shape.
以上の製造方法により、ばね限界値45kgf/mm2以上で
あって、かつ耐熱ヘタリ性が90％以上というばね特性に
優れたマスク支持部材を得ることができる。ここで耐熱
ヘタリ性が90％以上とは後述する実施例における評価方
法によるものを言うこととする。By the above manufacturing method, it is possible to obtain a mask supporting member having a spring limit value of 45 kgf / mm 2 or more and having excellent heat resistance and a heat set resistance of 90% or more. Here, the heat resistance to heat set of 90% or more refers to the value obtained by the evaluation method in Examples described later.
本発明の実施例について述べる。 An embodiment of the present invention will be described.
18−８ステンレス鋼（SUS304、熱膨張率は180×10-7
／℃）からなる高膨張側合金を1050℃/30分溶体化処理
後急冷し、その後種々の加工率で冷間圧延を施して1.0m
mtの板とし、同じ板厚に冷間圧延したFe−36Ni（インバ
ー合金、熱膨張率は30×10-7／℃）により並接した。18-8 stainless steel (SUS304, coefficient of thermal expansion 180 × 10 -7
/ ° C) is rapidly cooled after solution treatment at 1050 ° C / 30 minutes, and then cold-rolled at various working rates to 1.0m
mt plates, and they were juxtaposed by cold-rolled Fe-36Ni (invar alloy, coefficient of thermal expansion 30 × 10 −7 / ° C.) to the same plate thickness.
並接したバイメタルは、第２図に示す短冊試片に切り
出し、一部は冷間加工ままで第３図の形状に曲げ成形を
行い、そのまま供試材とし、また一部は第１表に示す種
々の条件で焼なまし処理を施した。The bimetals that were juxtaposed were cut out into strip specimens as shown in Fig. 2, and partly cold-worked and bent into the shape shown in Fig. 3, which was used as a test material, and partly as shown in Table 1. Annealing treatment was performed under various conditions shown.
ばね限界値の測定は、JIS−H3702に準じて行ない、45
kgf/mm2以上を合格とした。また、ヘタリテストは、第
３図Ａ端を5mmたわませて固定した後、500℃×1hの処理
を行ない、前記Ａ端が初期高さの95％以上のものを優
（◎）、90％以上のものを良（○）、90％未満のものを
劣る（×）として耐熱ヘタリ性を確認した。The measurement of the spring limit value is performed in accordance with JIS-H3702, and 45
kgf / mm 2 or more was judged to be acceptable. In the settling test, the end of FIG. 3A was bent 5 mm and fixed, and then subjected to a treatment at 500 ° C. × 1 h. % Or more was evaluated as good (○), and less than 90% was evaluated as poor (x), and heat resistance was confirmed.
以上の結果を第１表に示すが、本発明によるものが全
て良好なばね限界値とヘタリ特性を示すのに対して、比
較例ではばね限界値および耐熱ヘタリ特性が、不良とな
ることがわかる。The above results are shown in Table 1. It can be seen that all of the examples according to the present invention show good spring limit values and settling properties, whereas the comparative examples have poor spring limit values and heat settling properties. .
〔発明の効果〕 以上説明のように本発明によれば、ばね限界値および
高温ヘタリの改善されたマスク支持部材を提供できるも
のでありその効果は大きい。 [Effects of the Invention] As described above, according to the present invention, it is possible to provide a mask supporting member with an improved spring limit value and high-temperature settling, and the effect is large.
第１図はマスク支持部材の形態を示す斜視図、第２図は
本実施例に用いた短冊状試片を示す図、および第３図は
本実施例において、ばね特性を評価するために用いる試
片を示す図である。FIG. 1 is a perspective view showing a form of a mask supporting member, FIG. 2 is a view showing a strip-shaped specimen used in this embodiment, and FIG. 3 is used for evaluating spring characteristics in this embodiment. It is a figure showing a specimen.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H01J 29/02,29/07 G12B 1/02 C21D 8/00──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. 6 , DB name) H01J 29 / 02,29 / 07 G12B 1/02 C21D 8/00
Claims (5)
板を並接合して得られるマスク支持部材の製造方法にお
いて、前記マスク支持部材の少なくとも高膨張側金属
は、そのオーステナイト系ステンレス鋼素材に冷間加工
を施したのち、250〜600℃で焼きなまし処理を行なうこ
とを特徴とするばね特性に優れたマスク支持部材の製造
方法。1. A method of manufacturing a mask supporting member obtained by joining two kinds of strip-shaped metal plates having different thermal expansion coefficients from each other in parallel, wherein at least the high expansion side metal of the mask supporting member is made of an austenitic stainless steel material. A method for producing a mask supporting member having excellent spring characteristics, comprising: performing cold working on a steel sheet, followed by annealing at 250 to 600 ° C.
板を並接合して得られるマスク支持部材の製造方法にお
いて、前記マスク支持部材の少なくとも高膨張側金属
は、そのオーステナイト系ステンレス鋼素材に冷間加工
を施し、製品形状に打抜き、曲げ成形加工したのち、25
0〜600℃で焼きなまし処理を行なうことを特徴とするば
ね特性に優れたマスク支持部材の製造方法。2. A method of manufacturing a mask supporting member obtained by joining two kinds of strip-shaped metal plates having different thermal expansion coefficients from each other in parallel, wherein at least the high expansion side metal of the mask supporting member is made of an austenitic stainless steel material. After cold working, punching and bending into product shape, 25
A method for producing a mask supporting member having excellent spring characteristics, wherein an annealing treatment is performed at 0 to 600 ° C.
板を並接合して得られるマスク支持部材の製造方法にお
いて、前記マスク支持部材の少なくとも高膨張側金属
は、そのオーステナイト系ステンレス鋼素材に冷間加工
を施し、250〜600℃で焼きなまし処理を行ない、次いで
製品形状に打抜き、曲げ成形加工することを特徴とする
ばね特性に優れたマスク支持部材の製造方法。3. A method of manufacturing a mask supporting member obtained by joining two kinds of strip-shaped metal plates having different thermal expansion coefficients from each other in parallel, wherein at least the high expansion side metal of the mask supporting member is made of an austenitic stainless steel material. A method of manufacturing a mask supporting member having excellent spring characteristics, comprising: performing cold working on a steel sheet, annealing at 250 to 600 ° C., and then punching and bending the product.
板を並接合して得られるマスク支持部材の製造方法にお
いて、前記マスク支持部材の少なくとも高膨張側金属
は、そのオーステナイト系ステンレス鋼素材に冷間加工
を施し、250〜600℃で焼きなまし処理を行ない、次いで
製品形状に打抜き、曲げ成形加工し、更に250〜600℃で
焼きなまし処理することを特徴とするばね特性に優れた
マスク支持部材の製造方法。4. A method of manufacturing a mask supporting member obtained by joining two kinds of strip-shaped metal plates having different thermal expansion coefficients from each other in parallel, wherein at least the high expansion side metal of the mask supporting member is made of an austenitic stainless steel material. A mask support member with excellent spring characteristics, characterized by cold-working, annealing at 250 to 600 ° C, then punching into a product shape, bending, and annealing at 250 to 600 ° C. Manufacturing method.
板を並接合して得られるマスク支持部材において、前記
マスク支持部材の少なくとも高膨張側金属は、そのオー
ステナイト系ステンレス鋼素材に冷間加工が施され、そ
の後に250〜600℃による焼きなまし処理が施され、ばね
限界値が45kgf/mm2以上で、かつ耐熱ヘタリ性が90％以
上であることを特徴とするマスク支持部材。5. A mask support member obtained by joining two kinds of strip-shaped metal plates having different thermal expansion coefficients from each other in parallel, wherein at least the high expansion side metal of the mask support member is cold-rolled to the austenitic stainless steel material. A mask support member which is processed and then subjected to an annealing treatment at 250 to 600 ° C., has a spring limit value of 45 kgf / mm 2 or more, and has a heat resistant set resistance of 90% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63048176A JP2788244B2 (en) | 1987-08-13 | 1988-03-01 | Mask support member and method of manufacturing the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20245187 | 1987-08-13 | ||
| JP62-202451 | 1987-08-13 | ||
| JP63048176A JP2788244B2 (en) | 1987-08-13 | 1988-03-01 | Mask support member and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01132034A JPH01132034A (en) | 1989-05-24 |
| JP2788244B2 true JP2788244B2 (en) | 1998-08-20 |
Family
ID=26388404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63048176A Expired - Fee Related JP2788244B2 (en) | 1987-08-13 | 1988-03-01 | Mask support member and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2788244B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100319085B1 (en) * | 1994-12-29 | 2002-08-13 | 삼성에스디아이 주식회사 | Hook spring of shadow mask frame assembly and color cathode ray tube using it |
| KR100428613B1 (en) * | 1997-08-27 | 2004-07-16 | 삼성에스디아이 주식회사 | Shadow mask suspension spring for cathode ray tube, including steel wire groups and metal bonding layers stacked into plural layers |
| DE102014216225A1 (en) * | 2014-08-14 | 2016-02-18 | Muhr Und Bender Kg | Structural component and method for producing a structural component |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5112987B2 (en) * | 1973-01-19 | 1976-04-23 | ||
| JPS60157139A (en) * | 1984-01-27 | 1985-08-17 | Hitachi Ltd | Manufacture of spring for supporting shadow mask |
-
1988
- 1988-03-01 JP JP63048176A patent/JP2788244B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01132034A (en) | 1989-05-24 |
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