JPH02155140A - Manufacture of electron gun electrode structure for cathode ray tube - Google Patents
Manufacture of electron gun electrode structure for cathode ray tubeInfo
- Publication number
- JPH02155140A JPH02155140A JP30928888A JP30928888A JPH02155140A JP H02155140 A JPH02155140 A JP H02155140A JP 30928888 A JP30928888 A JP 30928888A JP 30928888 A JP30928888 A JP 30928888A JP H02155140 A JPH02155140 A JP H02155140A
- Authority
- JP
- Japan
- Prior art keywords
- electron gun
- roller
- coining
- cathode ray
- ray tube
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 abstract description 14
- 238000000137 annealing Methods 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は陰極線管用電子銃型ｉ楕体の製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing an electron gun type i-ellipse for a cathode ray tube.
陰極線管に使用されている電子銃電極構体のＧ。 G of the electron gun electrode assembly used in cathode ray tubes.
電極およびＧ２電極は、一般に、板厚０，２５〜０．３
５ｍｍ程度のステンレス材又はＦｅ−Ｎｉ系合金材をプ
レス成形し、放射電子の通過孔が０．３〜Ｑ、６ｍｍの
孔径を有して構成されている。The electrode and G2 electrode generally have a plate thickness of 0.25 to 0.3
A stainless steel material or Fe--Ni alloy material of about 5 mm is press-molded, and the radiation electron passage hole has a hole diameter of 0.3 to Q and 6 mm.
最近はフォルカス特性の改善により、第５図および第６
図に示ずＧ、電極、又は、Ｇ２電極の放射電子通過孔１
の周囲の板厚ｔ１を円形又は矩形に、しかも、極薄にす
ることが必須条件となってきている。Recently, due to improvements in Folkas characteristics, Fig. 5 and 6
Not shown in the figure: G, electrode, or G2 electrode radiation electron passage hole 1
It has become essential to make the plate thickness t1 around the plate circular or rectangular and extremely thin.
この極薄部２を得る方法として、従来は、プレス成形に
おけるコイニング加工にて成形する方法と、第７図に示
す放射電子通過孔１を有した極薄板３を溶接等により電
極母材４に貼り合わせる方法等が実用化されている。Conventionally, this ultra-thin part 2 can be obtained by forming it by coining in press forming, or by welding an ultra-thin plate 3 having a radiation electron passing hole 1 as shown in FIG. 7 to an electrode base material 4. Methods such as bonding have been put into practical use.
しかし、最近、特にデイスプレィ管のフォーカス特性向
上および電極組立精度の向上の要求等により前記の加工
方法による極薄部２の形成には困難な問題が生じている
。However, recently, due to demands for improved focus characteristics of display tubes and improved precision in electrode assembly, difficult problems have arisen in forming the ultra-thin portion 2 using the above-mentioned processing method.
すなわち、極薄部２は５０〜７０μｍ程度が要求され、
これを得るには母材板厚０．２５〜０．３５＋ｎｍから
プレス成形しなければならない。That is, the ultra-thin portion 2 is required to have a thickness of about 50 to 70 μm,
To obtain this, press molding must be performed from a base material plate thickness of 0.25 to 0.35+ nm.
一般のプレス成形によるコイニング率（極薄部／母材板
厚）は、５０〜６０％が限度であり、要求されるコイニ
ング率２０〜３０％を得ることは不可能となっている。The coining rate (ultra-thin part/base material plate thickness) in general press molding is limited to 50 to 60%, making it impossible to obtain the required coining rate of 20 to 30%.
よって、その改善策としてコイニング加工を数回に分け
て行ない、しかも、成形中間工程にて、下孔加工および
アニール工程を加える等が必要とされ、非常に多くの加
工工数を要するという問題点があった。Therefore, as an improvement measure, it is necessary to perform the coining process in several steps, and also to add pilot hole drilling and annealing processes in the intermediate forming process, which poses the problem of requiring a very large number of processing steps. there were.
又、５０〜７０μｍからなる極薄部を第７図の如き貼り
合わせ方法においてもその平面ｃ−ｃ’の精度および電
子銃電極構体組立時の強度不足による精度劣化が生じ困
難な問題点となっていた。Furthermore, even in the method of bonding ultra-thin parts of 50 to 70 μm as shown in FIG. 7, the precision of the plane c-c' and the lack of strength during assembly of the electron gun electrode structure deteriorate the precision, which poses a difficult problem. was.
本発明の目的は、加工工数を要せず、強度不足による組
立精度劣化のない陰極線管用電子銃電極槽体を提供する
ことにある。An object of the present invention is to provide an electron gun electrode tank body for a cathode ray tube that does not require many processing steps and does not cause deterioration in assembly accuracy due to insufficient strength.
本発明は、陰極線管のネック部内に封止される陰極線管
用電子銃電極構体の製造方法において、Ｇ、電極および
Ｇ２電極の放射電子通過孔の周囲を極薄に円形と矩形と
のいずれか一方の形状にコイニングしてなる前記Ｇ１電
極および前記Ｇ２電極の極薄部がローラコイニング法と
プレス塑性加工法とを組合わせて形成されている。The present invention provides a method for manufacturing an electron gun electrode assembly for a cathode ray tube that is sealed in the neck of a cathode ray tube, in which the periphery of the emitted electron passage hole of the G, electrode, and G2 electrode is formed into an extremely thin shape either circular or rectangular. The extremely thin parts of the G1 electrode and the G2 electrode, which are coined into the shape of , are formed by a combination of a roller coining method and a press plastic working method.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の陰極線管用電子銃電極構体の電極部品
の加工方法を説明する斜視図、第２図は第１図のＡ−Ａ
’線断面図、第３図はローラコイニング法により凹状陥
没部の形成方法を説明する側面図、第４図（ａ＞、（ｂ
）はプレス塑性加工法により極薄部形成方法を説明する
要部断面図である。FIG. 1 is a perspective view illustrating a method of processing electrode parts of an electron gun electrode assembly for a cathode ray tube according to the present invention, and FIG. 2 is an A-A in FIG. 1.
Figure 3 is a side view illustrating the method of forming a concave depression by the roller coining method, and Figure 4 (a>, (b)
) is a cross-sectional view of a main part illustrating a method of forming an ultra-thin part by a press plastic working method.
第１図に示すように、まず、シート状母材５に長さ方向
２１１幅方向Ｐ２の間隔にローラコイニング法により、
凹状陥没部６を形成する。第２図に示すように、ローラ
コイニングされた凹状陥没部６の深さＨおよび直径りは
、任意に選択が可能である。As shown in FIG. 1, first, the sheet-like base material 5 is coated at intervals of 211 in the length direction and P2 in the width direction by a roller coining method.
A concave depression 6 is formed. As shown in FIG. 2, the depth H and diameter of the roller-coined concave portion 6 can be arbitrarily selected.
第３図に示すように、ローラコイニング法による凹状陥
没部６の形成は、まず、シート状母材５を製造する圧延
工程において、所定の板厚に仕上げる最終調質圧延ロー
ラ７に長さ方向２１１幅方向Ｐ２の間隔に相当する位置
にコイニングブツシュ８が埋込まれているローラ７と対
設するローラ９を用いて行われる。すなわち、ローラ７
と対設するローラ９間にて加圧、圧延されたシート状母
材５には、第１図及び第２図に示す長さ方向１７１幅方
向Ｐ２の間隔と深さＨ１直径りの各所要寸法の凹状陥没
部６が形成され、その後、軟化焼鈍が行われる。As shown in FIG. 3, the formation of the concave depressions 6 by the roller coining method is first carried out in the rolling process for manufacturing the sheet-like base material 5, when the final temper rolling roller 7 is applied in the longitudinal direction to finish the plate to a predetermined thickness. 211 This is carried out using a roller 9 that is opposed to the roller 7 in which the coining bushing 8 is embedded at a position corresponding to the interval in the width direction P2. That is, roller 7
The sheet-like base material 5 that has been pressurized and rolled between rollers 9 that are disposed opposite to each other has the required distances in the length direction 171 and the width direction P2 and the depth H1 diameter shown in FIGS. 1 and 2. A concave depression 6 of this size is formed and then a softening annealing is performed.
次に、第４図（ａ）、（ｂ）に示すように、シート状母
材５をプレス金型に装着し、Ｐ１間隔で順送りされ、凹
状陥没部６をさらに金型のコイニングポンチ１０とダイ
１１との加圧により、極薄部２が形成される。Next, as shown in FIGS. 4(a) and 4(b), the sheet-like base material 5 is mounted on a press mold, and is sequentially fed at intervals of P1, and the concave depressions 6 are further inserted into the coining punch 10 of the mold. By applying pressure with the die 11, the ultra-thin portion 2 is formed.
このようにして、極薄部２が形成されたシー１〜状母材
５をプレス等で打抜くことにより、陰極線管用電子銃電
極構体の＠種部品が得られる。By punching out the sheet 1-shaped base material 5 on which the ultra-thin portion 2 is formed using a press or the like in this manner, an @ type part of an electron gun electrode assembly for a cathode ray tube is obtained.
本発明による極薄部の形成は、ローラコイニング法とプ
レス塑性加工法とを組合わせることにより、容易でしか
も高精度に得ることができ、さらに、従来のコイニング
法による成形工程の簡素化が図られるという効果がある
。The ultra-thin part according to the present invention can be formed easily and with high precision by combining the roller coining method and the press plastic working method, and further simplifies the forming process using the conventional coining method. It has the effect of being
又、プレス金型の摩耗、破損管理も減少し、電子銃用電
極生産の効率化および特性の改善が図れる効果も有して
いる。In addition, wear and damage control of the press mold is reduced, and the production efficiency of electron gun electrodes is increased and characteristics are improved.
第１図は本発明の陰極線管用電子銃電極構体の電極部品
の加工方法を説明する斜視図、第２図は第１図のＡ−Ａ
’線断面図、第３図はローラコイニング法により凹状陥
没部の形成方法を説明する側面図、第４図（ａ）、（ｂ
）はプレス塑性加工法により極薄部形成方法を説明する
要部断面図、第５図は従来のＧ１電極又はＧ２電極の一
例の平面図、第６図は第５図のＢ−Ｂ’線断面図、第７
図は従来のＧ１電極又はＧ２の他の例の断面図である。
１・・・放射電子透過孔、２・・・極薄部、３・・・極
薄板、４・・・電極母材、５・・・シート状母材、６・
・・凹状陥没部、７．９・・・ローラ、８・・・コイニ
ングブツシュ、１０・・・ポンチ、１１・・・ダイ。FIG. 1 is a perspective view illustrating a method of processing electrode parts of an electron gun electrode assembly for a cathode ray tube according to the present invention, and FIG. 2 is an A-A in FIG. 1.
Figure 3 is a side view illustrating the method of forming a concave depression by the roller coining method, and Figures 4 (a) and (b) are
) is a sectional view of a main part explaining the ultra-thin part forming method by press plastic working method, FIG. 5 is a plan view of an example of a conventional G1 electrode or G2 electrode, and FIG. 6 is a line BB' in FIG. 5. Cross section, 7th
The figure is a sectional view of another example of the conventional G1 electrode or G2. DESCRIPTION OF SYMBOLS 1... Radiation electron transmission hole, 2... Ultra-thin part, 3... Ultra-thin plate, 4... Electrode base material, 5... Sheet-like base material, 6...
...Concave depression, 7.9...Roller, 8...Coining bush, 10...Punch, 11...Die.
Claims (1)
極構体の製造方法において、Ｇ＿１電極およびＧ＿２電
極の放射電子通過孔の周囲を極薄に円形と矩形とのいず
れか一方の形状にコイニングしてなる前記Ｇ＿１電極お
よび前記Ｇ＿２電極の極薄部をローラコイニング法とプ
レス塑性加工法とを組合わせて形成したことを特徴とす
る陰極線管用電子銃電極構体の製造方法。In a method for manufacturing an electron gun electrode assembly for a cathode ray tube that is sealed within the neck of the cathode ray tube, the periphery of the emitted electron passing hole of the G_1 electrode and the G_2 electrode is coined into either a circular or rectangular shape extremely thinly. A method for manufacturing an electron gun electrode assembly for a cathode ray tube, characterized in that the extremely thin portions of the G_1 electrode and the G_2 electrode are formed by a combination of a roller coining method and a press plastic working method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63309288A JP2764970B2 (en) | 1988-12-06 | 1988-12-06 | Method of manufacturing electron gun electrode assembly for cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63309288A JP2764970B2 (en) | 1988-12-06 | 1988-12-06 | Method of manufacturing electron gun electrode assembly for cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02155140A true JPH02155140A (en) | 1990-06-14 |
| JP2764970B2 JP2764970B2 (en) | 1998-06-11 |
Family
ID=17991191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63309288A Expired - Lifetime JP2764970B2 (en) | 1988-12-06 | 1988-12-06 | Method of manufacturing electron gun electrode assembly for cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2764970B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58163128A (en) * | 1982-03-23 | 1983-09-27 | Toshiba Corp | Process for producing grid of c-crt electron gun |
-
1988
- 1988-12-06 JP JP63309288A patent/JP2764970B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58163128A (en) * | 1982-03-23 | 1983-09-27 | Toshiba Corp | Process for producing grid of c-crt electron gun |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2764970B2 (en) | 1998-06-11 |
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