4ί97〇| A7 B7 五、發明説明（ 發明領域： 2簡於陰極射線管包封，_是其平板及面板。 發明霄景： =極射線管通常具有朗包封其顧真空抽除以及 在密封。包封包含峰板構件，漏斗狀構件以及管狀 頸部構件。電子搶裝置於頸部構件中。 板構件通常稱為面板，或顯示視窗，因為其提供一個銀 幕，在其上面形成影像或顯示幕。通常，板構件具有相關週 邊鄰接區域，諸贿至職㈣雜之科狀構件β 由於陰極㈣管操作於真空狀態，跨越板構件存在一 個大氣壓力差值。當玻璃冷卻產生歡時將有破裂之危險 。為了防止爾況發生，增加板厚度。通常板玻璃厚度較 漏斗狀以及獅麟厚，因妓些構件在時較不易受 到損壞以及並不暴露出。 較大映像管尺寸不斷增加之需求促使產生較長及較大 之平板。因而增加板及顯像板之重量。此將使得處理較重 物品不受損壞較為困難的。該映像管亦拌隨需要較多時間 及能量以處理平板及映像管，因而增加成本。因此對增加 板厚度之替代產生強烈需求。 經濟部中央標準局員工消費合作社印敢 已作許多建議使用所謂防壓破裂保護帶。該保護帶緊 密地包圍平板週圍區域，以及能夠緊密地密封至其上面。 保護帶能夠由金屬或其他強固材料所構成。 人們已知藉由回火能夠增加強度。此過程通常使用於 不同種類例如汽車玻璃以及玻璃器皿。玻璃能夠藉由將冷 本紙張尺度適用中國國家標準（CNS ) Α4規格{ 2丨0Χ297公嫠} 3斗 419701 A7 B7 五、發明説明（1) 經濟部中央標準局員工消費合作社印製 空氣吹過其表面而作熱回火處理。此加速使表面玻璃凝固 ，但是在其中將產生壓應力。提出另外一個替代操作為化 學性之回火D在該處理過程中使用離子交換藉由聚集離子 於玻璃表面而形成壓力。 本發明係關於製造陰極射線管之改良包封。特別是， 關於製造大於19”尺寸之較大陰極射線管。本發明亦關於 將陰極射線管(CRT)板厚度減為最低同時保持完全之保護 而防止破裂。本發明亦關於一種方法以製造出陰極射線管 ，該陰極射線管厚度為最小同時能夠完全保護防止破裂。 發明大要： 本發明物品為陰極射線管玻璃包封，其包含板構件，該 板厚度藉由下列公式界定出： (σ )p=kP(a/t)2 其中（σ )P為板中淨張應力，（a)為短轴一半長度以英忖表 示，（P)為大氣壓力以psi表示以及(k)為射線管幾何形狀之 結構常數。板具有淨張應力不超過1150psi，在平板製造過 程中產生表面壓應力，及適當收縮之破裂保護帶於在板中 ，其加大表面壓力於板上週邊區域四週，因而板厚度實質上 小於相對未處理射線管包封之厚度。 本發明另外一項係關於一種方法以減小陰極射線管玻 璃包封板構件之厚度，其中厚度由（cj)P=kP(a/t)2界定出 ，其中（σ)Ρ為板中最大張應力，該方法包含藉由表面處理 使板表面產生壓力，以及藉由適當收縮破裂保護帶於在平 板週邊區域上，同時保持（σ)Ρ不超過ll5〇pSi,因而允許未 (請先閱讀背面之注意事項再填寫本頁) 丁 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210x297公廣） 4*9? 〇t A7 B7 五、 發明説明（5 經濟部中央標準局員工消費合作社印製 處理平板之板厚度減小。 先前技術相關文獻將列於下列說明中。 附圖簡單說明： 圖1為本發明陰極射線管部份斷面側視圖。 圖2為圖1平板構件上視圖。 附圖數字符號說明： 陰極射線管10;類像板12;漏斗狀結構14;管狀頸部 構件16;電子搶18;週邊區域20;密封22;長軸24;短軸 26;接板區域28。 ’ 詳細說明： 本發明係關於玻璃包封使用於製造陰極射線管中。特 別是關於該玻璃包封之映像管構件。映像管以及包封通常 由板構件之幾何形狀區別。本發明並不受限於任何特定映 像管幾何形狀。不過，本發明對一般長方形之包封說明。 圖1為侧視圖特別是剖面圖，其顯示出陰極射線管構造 通常以代號10表示。陰極射線管1〇包含標準玻璃包封構件 .顯像板12,漏斗狀結構14以及管狀頸部構件16。電子搶μ 裝置於頸部構件I6巾。其雜本剌無關之陰㈣線管組 成元件例如触銀幕以及屏蔽遮罩為了圖面清析而加以省 略。顯像板12具有相關週邊四週部份2〇。顯像板12藉由密 封22連接至漏斗狀結構14,該密封在週邊區域2〇邊緣與漏 斗狀結構14之間。 當陰極射線管10施以真空抽除，存在一個大氣壓力差 值於外部大氣與内部實質上壓力為零區域之間。整個陰極 Μ氏張尺度適用中國國家榡準（CNS ) Λ4規格（2IOX297公楚 (請先閱讀背面之注意Ϋ項再填巧本頁)4ί97〇 | A7 B7 V. Description of the invention (Field of the invention: 2 is simpler than the cathode ray tube encapsulation, _ is its flat plate and panel. The invention of the scene: = The polar ray tube usually has a long envelope and its vacuum extraction and sealing The encapsulation consists of a peak plate member, a funnel-like member, and a tubular neck member. The electronic grab is installed in the neck member. The plate member is often called a panel, or display window, because it provides a screen on which an image or display is formed Normally, the plate member has related peripheral adjacent areas, and the various branch-like members are related to each other. Because the cathode tube is operated in a vacuum state, there is an atmospheric pressure difference across the plate member. Danger of rupture. In order to prevent the occurrence of conditions, increase the thickness of the plate. Usually the thickness of the plate glass is thicker than the funnel shape and the lion, because some components are less likely to be damaged and not exposed at the time. Larger image tube sizes continue to increase The demand has led to the creation of longer and larger flat plates. As a result, the weight of the plates and development plates has been increased. This will make it more difficult to handle heavy items without damage The image tube also requires more time and energy to process the flat plate and the image tube, which increases the cost. Therefore, there is a strong demand for an alternative to increase the thickness of the plate. The staff consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs has made many suggestions to use the so-called Pressure-resistant rupture protective tape. The protective tape tightly surrounds the area around the plate and can be tightly sealed to it. The protective tape can be made of metal or other strong materials. It is known to increase strength by tempering. This process Usually used in different types such as automotive glass and glassware. Glass can be adapted to Chinese National Standards (CNS) A4 specifications {2 丨 0 × 297 公 嫠} 3 buckets 419701 A7 B7 by applying cold paper dimensions V. Description of the invention (1) Economy The Ministry of Standards and Standards Bureau ’s consumer cooperative prints air across its surface for thermal tempering. This acceleration causes the surface glass to solidify, but compressive stress will be generated in it. Another alternative operation is chemical tempering. D During the process, ion exchange is used to build pressure by aggregating ions on the glass surface. Improved encapsulation for manufacturing cathode ray tubes. In particular, manufacture of larger cathode ray tubes larger than 19 "size. The present invention also relates to minimizing the thickness of cathode ray tube (CRT) plates while maintaining complete protection to prevent cracking The present invention also relates to a method for manufacturing a cathode ray tube, which has the smallest thickness and can be completely protected from rupture. Summary of the invention: The article of the present invention is a glass envelope for a cathode ray tube, which includes a plate member, the plate The thickness is defined by the following formula: (σ) p = kP (a / t) 2 where (σ) P is the net tensile stress in the plate, (a) is the length of the short-axis half in English 忖, and (P) is the atmospheric pressure The force is expressed in psi and (k) is the structural constant of the geometry of the ray tube. The plate has a net tensile stress not exceeding 1150 psi, which generates surface compressive stress during the flat plate manufacturing process, and a properly contracted rupture protection band is placed in the plate. The large surface pressure is around the peripheral area of the plate, so the thickness of the plate is substantially smaller than the thickness of the envelope relative to the untreated ray tube. Another aspect of the present invention relates to a method for reducing the thickness of a glass-encapsulated plate member of a cathode ray tube, wherein the thickness is defined by (cj) P = kP (a / t) 2, where (σ) P is the largest in the plate Tensile stress, this method includes surface treatment to generate pressure on the surface of the board, and proper shrinkage of the rupture protection tape on the perimeter of the plate, while maintaining (σ) P not exceeding ll50 pSi, so allowing (please read first Note on the back, please fill in this page again.) The paper size of this paper is applicable to the Chinese National Standard (CNS) Λ4 specification (210x297). 4 * 9? 〇t A7 B7 V. Description of the invention (5 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The thickness of the plate of the processing flat plate is reduced. The related literature of the prior art will be listed in the following description. Brief description of the drawings: FIG. 1 is a partial cross-sectional side view of the cathode ray tube of the present invention. Description of figures and symbols: cathode ray tube 10; analog plate 12; funnel-like structure 14; tubular neck member 16; electronic grab 18; peripheral area 20; seal 22; long axis 24; short axis 26; plate area 28 . 'Detailed description: This invention is Glass encapsulation is used in the manufacture of cathode ray tubes. In particular, the glass-encapsulated image tube components. The image tube and the encapsulation are usually distinguished by the geometry of the plate member. The invention is not limited to any particular image tube geometry Shape. However, the present invention illustrates the encapsulation of a general rectangle. Figure 1 is a side view, particularly a cross-sectional view, showing that the structure of the cathode ray tube is generally represented by the code 10. The cathode ray tube 10 includes a standard glass encapsulation member. Like the plate 12, the funnel-like structure 14, and the tubular neck member 16. The electronic grabbing device is installed on the neck member I6. The miscellaneous and unrelated vaginal tube components such as the silver screen and the shielding mask are illustrated for the sake of clarity. It is omitted. The imaging plate 12 has a relevant peripheral portion 20. The imaging plate 12 is connected to the funnel-like structure 14 by a seal 22, which is between the edge of the peripheral area 20 and the funnel-like structure 14. When the cathode The vacuum tube 10 is subjected to vacuum extraction, and there is an atmospheric pressure difference between the outside atmosphere and the area where the internal pressure is substantially zero. The entire M-scale scale of the cathode is applicable to the national standard (C NS) Λ4 specification (2IOX297) (please read the note on the back before filling in this page)
419701 A7 __B7 五、發明説明（午） 射線管表面產生壓力差值，但是特別地關切顯像板12,因為 其裝置於電視機上為外露的。壓力差值在跨越過顯像板將 產生張力。該張力必需加以限制以防止表面裂紋傳播，及 陰極射線管包封崩裂。 圖2為長方形顯像板構件12之上視圖，其顯示出以虛線 表示長轴24及短軸26。我們發現靠近短轴26端部之接板區 域28承受最大應力以及為板中最脆弱區域。即預期裂縫初 始形成以及發生破裂之來源。 廣泛之研究顯示出藉由限制跨越顯像板12之淨張應力 小於1150psi能夠避免破裂。保持等於或低於該應力數值 對數百個試樣作測試顯示並無裂縫發生於不良磨損試樣上 。不過以較高數值例如為1400psi張力，有一些裂縫形成。 張力（σ)Ρ依據（a)P=kP(a/t)2決定出。 明顯地允許板厚度(t)由淨張應力表示。該淨張應力 不浔超過1150psi。明顯地板重量隨著板厚度增加而增加 。本發明目標在於減小厚度，因而減小重量，使張力限制在 1150psi範圍内。 經濟部中央標準局貝工消費合作社印製 (对先閱讀背而之注意事項再填{?5本頁) 我們發現顯像板一般厚度能夠減小10-35%，其決定於 製造條件之一致性。為了達成該目標，我們合併兩個在顯 像板12外部表面中產生表面壓力之方式。 在製造過程中將顯像板構件12快速地冷卻能夠在板表 面產生顯著之壓力大小。在一般條件下，能夠產圭在450-1650psi範圍之表面壓力大小。在某些範圍，該表面壓力在 廢氣烘乾循環熱處理中將失去。映像管在最後密封前暴露 本紙張尺度適用中囷國家標準（CNS ) Λ4規格（210 X 297公蝥） 7 4ί97〇1 經濟部中央標率局員工消費合作社印製 A7 B7 五、發明説明（$ ) 於該循環下。允許可能損失30%，將保留至少315-1155psi 之壓應力值。該壓力將抵消1150psi張力值使得淨張應力為 835psi 。 我們發現顯像板中壓應力值能夠藉由適當收縮預先形 成金屬帶20於顯像板12週圍區域20四週更進一步增加。在 該方式下，170-290psi壓應力值能夠產生。因而將使淨張 力減小為665psi。 人們了解正常需求並不減小張應力而是減小板厚度， 以及因而減小陰極射線管重量。本發明實際效果在於保持 1150psi最大張應力於陰極射線管板中。因而容許最小厚 度使用先前所說明之公式計算出。此計算顯示出未處理包 封板之一般厚度能夠減少25%。因而在正常方式中冷卻厚 度為1/2"之板能夠使其厚度減小為3/8"。 當使用各種形式適當收縮之邊緣時，我們發現利用銲 接連接板形式邊緣帶將產生最佳結果。該形式帶狀構件說 明於Keith Guenther等人之發表於1996年5月21日’ 96 Display-^"Evaluation of Fabrication and Reliability of Metal Band Joining Techniques for Long Term Safety of CRTs"。 空氣冷卻優先使用方式產生壓應力於玻璃板中。不過 人們了解藉由離子交換之化學性之回火同樣地有效，雖然 並不常使用。產生應力經由熱處理控制性地釋除亦是有效 方式以產生高表面壓力於CRT板中。 本發明更進一步說明關於一種測試，其中比較數種群 本紙張尺度適用中國國家標準（CNS ) Λ4规格（210X 297公瀣） (請先閱讀背面之注意事項再填碎木頁) 、1r 4197〇j A7 ---------- 五、發明説明（) 組密封及真空源抽除之CRTs。在每一組陰極射線管中具有 相同物理特性，但是每一組具有不同特性。特別地，每一組 具有唯一組合之中央面厚度(CFT)數值及高表面壓力（HSC) 數值。 中央面厚度為陰極射線管板中央處以英吋表示之厚度 。局表面壓力為在板中產生以pSj表示之壓力以抵消由於 壓力差值產生之張力。測試在100天内進行，所有陰極射線 管以標準商業化方法製造出；以及所有顯像板被輕度地磨 除以模擬預期之使用。 表I顯示出每一組CFT及HSC數值(在密封邊緣量測得到 HSC數值）;每一組陰極射線管數目；以及破壞之數目。 i I - -i I 1 ! I (请先閱讀背而之注意事項再填寫本頁) 、-·419701 A7 __B7 V. Description of the invention (afternoon) A pressure difference is generated on the surface of the ray tube, but special attention is paid to the display panel 12, because the device is exposed on the television. The pressure difference will create tension across the imaging board. This tension must be limited to prevent surface crack propagation and cracking of the cathode ray tube envelope. Fig. 2 is a top view of the rectangular display panel member 12, which shows the long axis 24 and the short axis 26 as dashed lines. We found that the plate area 28 near the end of the short axis 26 is subjected to the greatest stress and is the most vulnerable area in the plate. That is, the source of the expected initial formation of cracks and fractures. Extensive research has shown that cracking can be avoided by limiting the net tensile stress across the development panel 12 to less than 1150 psi. Keeping the stress value at or below this stress. Testing of hundreds of specimens showed that no cracks occurred on the poorly worn specimens. However, at higher values such as 1400 psi tension, some cracks formed. The tension (σ) P is determined according to (a) P = kP (a / t) 2. The plate thickness (t) is clearly allowed to be expressed by the net tensile stress. This net tensile stress does not exceed 1150 psi. Obviously the floor weight increases with the thickness of the board. The object of the present invention is to reduce the thickness and thus the weight, and limit the tension to the range of 1150 psi. Printed by the Central Laboratories of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives (for the first reading, please fill in the {? 5 page). We found that the general thickness of the display panel can be reduced by 10-35%, which depends on the consistency of manufacturing conditions. Sex. To achieve this goal, we merge two ways of generating surface pressure in the outer surface of the panel 12. The rapid cooling of the developing plate member 12 during the manufacturing process can generate a significant amount of pressure on the surface of the plate. Under normal conditions, it can produce surface pressure in the range of 450-1650psi. In some ranges, this surface pressure will be lost during the exhaust gas drying cycle heat treatment. The image tube is exposed before the final sealing. This paper is in accordance with the China National Standard (CNS) Λ4 specification (210 X 297 gong). 7 4ί97〇1 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention ($ ) Under this cycle. A possible 30% loss is allowed and a compressive stress value of at least 315-1155 psi will be retained. This pressure will offset the 1150 psi tension value resulting in a net tensile stress of 835 psi. We have found that the value of the compressive stress in the development plate can be further increased by forming the metal strip 20 in advance around the area 20 around the development plate 12 by proper shrinkage. In this way, compressive stress values of 170-290 psi can be generated. This will reduce the net tension to 665 psi. It is understood that normal requirements do not reduce the tensile stress but rather the thickness of the plate, and therefore the weight of the cathode ray tube. The practical effect of the present invention is to maintain a maximum tensile stress of 1150 psi in the cathode ray tube sheet. The allowable minimum thickness is thus calculated using the formula described previously. This calculation shows that the general thickness of untreated encapsulants can be reduced by 25%. Therefore, in the normal mode, cooling a plate having a thickness of 1/2 " can reduce its thickness to 3/8 ". When using properly shrinkable edges in various forms, we have found that the use of edge strips in the form of welded joints will produce the best results. The description of this form of band-shaped member was published by Keith Guenther et al. On May 21, 1996 '96 Display-^ " Evaluation of Fabrication and Reliability of Metal Band Joining Techniques for Long Term Safety of CRTs ". Air cooling is used preferentially to generate compressive stress in the glass sheet. However, it is understood that the chemical tempering by ion exchange is equally effective, although not often used. Controlled release of the stress generated by heat treatment is also an effective way to generate high surface pressure in the CRT board. The present invention further illustrates a test in which the paper size of the comparative population is applicable to the Chinese National Standard (CNS) Λ4 specification (210X 297 cm) (please read the precautions on the back before filling in the wooden pages), 1r 4197〇j A7 ---------- V. Description of the invention () CRTs of group sealed and vacuum source extraction. The same physical characteristics are present in each group of cathode ray tubes, but each group has different characteristics. In particular, each group has a unique combination of Central Face Thickness (CFT) values and High Surface Pressure (HSC) values. The central plane thickness is the thickness in inches expressed at the center of the cathode ray tube sheet. The local surface pressure is the pressure expressed in pSj in the board to offset the tension caused by the pressure difference. Testing was performed within 100 days, and all cathode ray tubes were manufactured using standard commercial methods; and all display panels were lightly abraded to simulate intended use. Table I shows the CFT and HSC values for each group (HSC values measured at the sealing edges); the number of cathode ray tubes in each group; and the number of failures. i I--i I 1! I (Please read the precautions before filling this page),-·
表I CFT(英吋）HSC(psi) 測試數目破壞數目 A 0.491 ±0.006 1700±100 10 0 B 0.491 ±0.006 600土100 8 8 C 0.521 ±0.009 1700±100 10 0 D 0.551 ±0.009 600±100 10 0 E 0.491 ±0,006 1700±100 9 0 F 0.491 ±0.006 600±200 10 0 G 0.491 ±0.006 1200±100 7 0 Η 0.491 ±0.006 1700±100 10 0 I 0.521 ±0.009 600±100 9 0 經濟部中央標準局員工消费合作社印製 其顯示出在限制值内所需要之CFT與HSC反比地變化& 依據這些以及其他測試，決定出27"顯像板CFT能由0, 480" 本紙張尺度適用中國國家標準{ CNS ) Λ4規格（210X297公釐} 419701 A7 五、發明説明（q ) 經濟部中央標準局員工消費合作社印策 往上變化同時HSC能夠在6〇〇與i7〇GpSi間變化。 除此，CRT必需通過衝擊測試。這些測試說明於 Underwriters Lab之UL 1418 "Standard for Safety of CRTs，’，以及CAN/CSA-C22. 2，NO，228-92，”Canadian Standards for CRTs" ° 這些測試包含利用特定重量之球或投射物在特定情況 下衝擊。其設計將確保由於受到較大物體重力衝擊所產生 CRT破裂時觀眾之安全。由這些測試玻璃碎片破裂時拋出 之距離限制為0-5英呎。這些碎片能夠運行多遠決定於兩 個因素i)碎片之尺寸以及其重量ii)推動碎片之能量。 前者受到保護帶產生壓應力影響，因為較高壓力將保 持數個破碎拘束在一起因而使其質量增加。後者由三種能 量來源所構成i)由於真空產生之能量U)由於壓力差值產 生之能量，以及iii)由於保護帶產生壓應力產生之局部變 形之能量。前兩種總能量以CRT尺寸表示以及相當地固定， 即其不能改變。不過第三種能夠藉由單純地改變保護帶寬 度或厚度而控制保護帶產生之壓應力而加以調整。 除此減少能量，由於保護帶產生局部變形改變在中央 處板形成圓頂數值。形成圓形數值為在陰極射線管板中央 點凸出距離，其由於施加壓應力而往外或往上實曲。人們 注意板中央由於真空抽除往内移動同時保護帶有助於使其 移回至原先位置。因此，形成圓頂為恢復適當位置之數值 。形成圓頂特定值為產生所需要應力必要之結果。不過， 測試顯示出形成圓頂必需受限於通過安全測試。 本紙張尺度適用中國國家標準（CNS ) Λ4说格（2!〇Χ29>7公釐） /0 I ,1 - — I·'1 I —1 -If 水 ;1-- (讀先閱讀背而之注意事項再填寫本頁) A7 B7 經濟部中央標芈局貝工消費合作杜印製 五、發明説明（q) 表II顯示出CFT及HSC數值，以及對數組進行UL以及CSA 測試保持完整CRT量測之形成圓頂數值。其亦揭示出使用 來產生壓應力保護帶之寬度。Table I CFT (inch) HSC (psi) Number of tests A 0.491 ± 0.006 1700 ± 100 10 0 B 0.491 ± 0.006 600 soil 100 8 8 C 0.521 ± 0.009 1700 ± 100 10 0 D 0.551 ± 0.009 600 ± 100 10 0 E 0.491 ± 0,006 1700 ± 100 9 0 F 0.491 ± 0.006 600 ± 200 10 0 G 0.491 ± 0.006 1200 ± 100 7 0 Η 0.491 ± 0.006 1700 ± 100 10 0 I 0.521 ± 0.009 600 ± 100 9 0 Central standard of the Ministry of Economy The Bureau ’s Consumer Cooperative printed the inverse change in the CFT and HSC required to show the limit values & Based on these and other tests, it was determined that 27 " CFT can be from 0, 480 " This paper size applies to China Standard {CNS) 4 specifications (210X297 mm) 419701 A7 V. Description of invention (q) The policy of the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs has changed and the HSC can change between 600 and i70GpSi. In addition, CRT must pass impact tests. These tests are described in Underwriters Lab's UL 1418 " Standard for Safety of CRTs, ', and CAN / CSA-C22. 2, NO, 228-92, "Canadian Standards for CRTs " ° These tests include Use specific weight The ball or projectile impacts under specific conditions. Its design will ensure the safety of the audience when the CRT is broken due to the gravitational impact of a large object. The distance thrown by these test glass fragments when they break is limited to 0-5 feet. How far these fragments can run depends on two factors i) the size of the fragments and their weight ii) the energy that pushes the fragments. The former is affected by the compressive stress of the protective belt, because the higher pressure will keep several fragments tied together and thus make it Mass increase. The latter consists of three energy sources i) energy due to vacuum U) energy due to pressure difference, and iii) energy due to local deformation due to compressive stress in the protective belt. The first two total energy are CRT The size is expressed and fairly fixed, that is, it cannot be changed. However, the third type can be adjusted by controlling the compressive stress generated by the protective tape by simply changing the width or thickness of the protective tape. In addition, the energy is reduced, and the protective tape is locally deformed. Change the value of the dome of the plate at the center. The value of the circle is the distance of the convex point at the center of the cathode ray tube plate. It bends outward or upward due to the application of compressive stress. It was noted that the center of the plate was moved inward due to vacuum evacuation while the protective band helped move it back to its original position. Therefore, forming the dome is the value to restore the proper position. The specific value for forming the dome is the result necessary to produce the required stress. However, tests have shown that forming the dome must be limited by passing safety tests. This paper size applies the Chinese National Standard (CNS) Λ4 grid (2! 〇 × 29 > 7 mm) / 0 I, 1-— I · '1 I —1 -If water; 1-- (read first read the back and Please note this page, please fill out this page) A7 B7 Printed by Shellfish Consumer Cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (q) Table II shows the CFT and HSC values, and UL and CSA tests on the array to maintain a complete CRT Measured to form a dome value. It also reveals the width of the protective band used to generate compressive stress.
表II 映像管CFT HSC形成圓頂保護帶寬度 (英忖）（psi)(咖） （英叶） 測試數目 破壞數目 1 0. 491 1700 0.121 1.496 15 1 2 0.491 600 0.110 1.496 15 0 3 0.521 1700 0.103 1.496 15 0 4氺 0.551 600 0.104 1.496 15 0 5 0.491 1700 0.128 1.496 15 1 6 0.541 1700 0.110 1.496 8 0 7 0.607 1700 0.095 1.496 8 0 8 0.541 1700 0.094 1.378 22 0 9 0.607 1700 0.088 1:378 4 0 表II中所列出破裂測試數據清楚地顯示出形成圓頂數 值太高，即大於0_ 110咖，其由標準1.496”寬度標準保護帶 產生，其無法使中央表面厚度為〇. 491"CRT通過破壞測試。 數據亦顯示出保護帶拌演雙重角色。除此在板中產生 之壓應力，保護帶寬度控制形成圓頂，即由於彎曲之應變能 量。減小保護帶寬度至1.378”將產生較低之壓應力以及較 小之形成圓頂，其有助於通過如表〖I之破壞測試。因而對 於較薄顯像板，在保護帶厚度誤差内需要較窄保護帶以通 過破壞測試。 本紙張尺度適用f國國家標準（CNS } A4規格（210X297公楚） I \各-------訂 (諳先閲讀背面之注意市項洱填离本頁) 4,97〇1 A7 __B7 五、發明説明（Cj ) 依據先前之測試，我們發現施加於27英忖CRT板之顯像 板週圍區域之金屬保護帶寬度在1. 378至1. 496英吋範圍内 。為了確保通過UL及CSA安全測試，形成圓頂數值應該在 0.088至 0.110mm 範圍内。 (諸先閱讀背而之注意事項再填转本頁) 經濟部中央標準局員工消費合作社印製 本纸張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） /2Table II CFT HSC dome protection band width (English) (psi) (coffee) (English leaf) Number of tests Number of damages 1. 0 1 491 1700 0.121 1.496 15 1 2 0.491 600 0.110 1.496 15 0 3 0.521 1700 0.103 1.496 15 0 4 氺 0.551 600 0.104 1.496 15 0 5 0.491 1700 0.128 1.496 15 1 6 0.541 1700 0.110 1.496 8 0 7 0.607 1700 0.095 1.496 8 0 8 0.541 1700 0.094 1.378 22 0 9 0.607 1700 0.088 1: 378 4 0 Table II The rupture test data listed in the figure clearly shows that the value of the dome formation is too high, that is, greater than 0_110 coffee, which is generated by the standard 1.496 "width standard protective band, which cannot make the central surface thickness of 491 " CRT pass the failure test The data also shows that the protective band plays a dual role. In addition to the compressive stress generated in the board, the width of the protective band is controlled to form a dome, that is, due to the strain energy of bending. Reducing the width of the protective band to 1.378 "will produce a lower The compressive stress and the smaller dome form help to pass the failure test as shown in Table I. Therefore, for thinner imaging boards, a narrower guard band is required within the guard band thickness error to pass the destruction test. This paper size applies to national standards of China (CNS) A4 (210X297). I \ each -------- order (谙 Please read the note on the back of the market first, fill out this page) 4,97〇1 A7 __B7 V. Description of the Invention (Cj) According to the previous test, we found that the width of the metal protective tape applied to the area around the CRT plate of the 27-inch CRT board was in the range of 1.378 to 1.496 inches. In order to ensure the passing of UL And CSA safety tests, the value of the dome should be in the range of 0.088 to 0.110mm. (Please read the back of the note before filling in this page) Printed by the Central Consumers Bureau of the Ministry of Economic Affairs of the Consumer Cooperatives The paper size is applicable to China Standard (CNS) A4 size (210 X 297 mm) / 2