201210957 六、發明說明： 本申请案主張西兀2010年8月30曰申請的美國臨時 專利申請案第61/378154號的優先權權益。 【發明所屬之技術領域】 本發明係關於管理經歷應力集中事件（stress_riser event)的加熱耐火陶瓷主體中的應力位準的方法。更特 別地，本發明係關於在融合下拉製程期間，管理耐火陶 瓷融合隔離管中的應力位準的方法。本發明有益於製造 如用於液晶顯示器（LCD)的玻璃片。 【先前技術】 玻璃片可利用融合下拉製程由熔融玻璃製成，此描述 於美國專利案第3,338,696號（西元1967年8月29日公 開；Dockerty-I)和第 3,682,609 號（西元 1972 年 8 月 8 曰公開；Dockerty-II )。第1圖圖示用以製造玻璃片的典 型融合下拉裝備。在第丨圖中，熔融玻璃丨輸送到稱為 隔離官5的成形槽内’成形槽由耐火陶瓷材料製成。溶 融玻璃1流過堰3的頂部而形成兩個分離串流<7、9，串 流7、9沿著融合隔離管5的相對會合側壁丨丨、13流下。 在融合隔離管5的根部15或底部，熔融玻璃的分離串流 7、9合併成單一熔融玻璃串流17，串流17接著經拉製 成玻璃片。此製程的關鍵優勢在於單一串流17的外表面 201210957 12、14不接觸融合 -串流拉製成IT的側壁^13°因此，從單 品質。 、、破璃片外表面係純淨且具火焰拋光 第2圖圖示利用 統19包括炼化容 下拉製長製造玻璃片的系統。系 製造熔融玻璃2// 器21接收原料及溶化原料而 。系統19可包括澄清容器27，容器27 接收來自熔化容考 σ 21的炼融玻璃25及處理炼融玻璃 5以私除稼化原料時可能併入熔融玻璃以的氣包體。 系統1 9可包括搜掉玄 ' 見拌谷态29，谷器29接收來自 27的熔融玻璃25 时 +日/且，月今器 合态29内攪拌熔融玻璃25，以改 善熔融玻璃25的均暂么从、 _ 。系、，充19包括輸送容器3 1，容 益31接收來自檀掉交哭 裝設在輸送容器31下方，、融玻璃25。降流管33 ° ，以接收來自輸送容器31的熔 融玻璃25。溶融姑链# ㈣璃25接著從降流管33流入入口管 ’入口管35連接至融合隔離管5的開口 3 :=;5?到隔離管5。儘管第2圖料示:但融 件和^ iT係设在電灶内’電灶可包括絕緣加熱元 :管，以控制融合隔離管5的不同部分的溫度。 融合下拉製程開始時，入口管35 主 个祸接至降流管33。 二二經控制加熱達破璃製造溫度，《備 ==25’一容器21接收及“原料而 =心玻璃25。控制加熱後，融合隔離管5歷經4 且至少一些事件係應力集中事件，例如主要電： 刀配、玻璃組成轉化、絕緣改變和安裝或移除製造 201210957 玻璃片所需的臨時設備。應力集中事件將明顯提高融合 隔離管中的應力位準。融合隔離管中的應力位準升高係 因為在很短的時間内，融合隔離管各處的溫度梯度產生 大幅變化。若在—定溫度下，融合隔離管中的應力位準 超過融合隔離管在此溫度下所能容忍的最大應力，則融 口 離s將發生結構損壞。破裂係融合隔離管常見的損 壞形式。 【發明内容】 在此揭露本發明的數個態樣。應理解該等態樣可以或 可不互相重疊。故某一態樣的一部分可能落在另一態樣 的範圍内，反之亦然。 每一態樣係以一些實施例說明，其依次可包括一或更 多特定實施例。應理解該等實施例可以或可不互相重 疊。故某一實施例或其特定實施例的一部分可能或可能 不落在另一實施例或其特定實施例的範圍内，反之亦然。 在本發明的第一態樣中，利用融合下拉製程製造玻璃 片的方法包含（a)形成熔融玻璃、（b)在熔爐内，將由耐火 陶瓷製成的融合隔離管加熱達玻璃製造溫度、（c)使融合 隔離管經歷第一應力集中事件，期間融合隔離管中的應 力位準將升高，以及（d)於步驟（C)後’使融合隔離管保持 溫度一段時間，其中熔爐内的溫度分布保持穩定，其中 在 >皿度保持期間’融合隔離管中的應力位準將下降。 201210957 在本發明第一態樣的一實施例中，方法進—步包含於 步驟⑷後，使融合隔離管經歷第二應力集中事件，期間 融合隔離管中的應力位準將升高。 在本發明第一態樣的一實施例中，方法進一步包含將 步驟⑷形成的㈣玻璃引到融合隔離管的槽内、使溶融 玻璃流過隔離管的堰表面、使熔融玻璃以兩個分離串流 的方式沿著融合隔離管的對側流下、使炫融玻璃的兩個 :離串流在融合隔離管的根部合併成單—熔融玻璃串 抓，以及將單一熔融玻璃串流拉製成玻璃片。 在本發明第一態樣的一實施例中，方法進—步包含就 非計晝應力集中事件，監測融合隔離管，且若偵測到非 计畫應力集中事件’則在非計晝應力集中事件後，促使 熔爐保持溫度。 在本發明第一態樣的一實施例中，就非計畫應力集中 事件，監測融合隔離管及/或熔爐包含測量堰的頂表面與 融合隔離管根部間的絕對溫差，以及估計絕對溫差隨時 間的變化率。 在本發明第一態樣的一實施例中，第一應力集中事件 係伴隨堪表面與根部間的絕對溫差變化率發生，絕對溫 差變化率大於l°c/小時。 在本發明第—態樣的一實施例中，第一應力集中事件 係伴隨堪表面與根部間的絕對溫差變化率發生，絕對溫 差變化率大於5。以小時。 在本發明第—態樣的一實施例中，第一應力集中事件 201210957 思堰表面與根部間的絕對溫差變化率 #繳儿士 于七生’絕對溫 差變化率大於10°C/小時。 在本發明第-態樣的一實施例中，方法進—步包含選 擇步驟⑷的溫度保持時期長度，使溫度保持時期長度與 從融合隔離管釋放的應力量呈比例關係。 、〜本發明第-態樣的-實施例中，其中選擇長度包含 測定損壞條件，損壞條件明定融合隔離管可容忍多少應 力和在特定溫度下多久不會發生結構損壞。 在本&明的第二悲樣中，控制加熱耐火陶瓷主體令的 應力的方法包含使加熱耐火陶£主體經歷_序列應力集 令事件’其中在各應力集_事件期間，加熱耐火陶竞主 中的應力位準將升馬。在該序列中的每兩個連續應力 集中事件之間，使融合隔離管保持溫度—段時間，其中 熔，内的狐度分布保持穩定。在溫度保持期間，融合隔 離管中的應力位準將下降。 你个赞明第 ..... 工夕 愿刀果Y爭 件係伴隨耐火㈣主體上兩個參考點間的絕對溫差變化 率發生，絕對溫差變化率大於1 °c/小時。 在本發明第二態樣的—實施例中，至少一應力集中事 件係伴隨耐火陶£主體上兩個參考點間的絕對溫差變化 率發生’絕對溫差變化率大於5。。/小時。 在本發明第二態樣的-實施例中，至少-應力集中事 件係伴隨耐火㈣主體上兩個參考點間的絕對溫差變化 率發生’絕對溫差變化率大於1〇〇c/小時。 201210957 在本發明第 定損壞條件， 應力和在特定 壞。 —態樣的一實施例中，方法進一步包含測 才貝壞條件明定耐火陶瓷主體中可容忍多少 溫度下耐火陶究主體多久不會發生結構損 定第二態樣的—實施例中’方法進-步包含規 :用於耐火陶究主體的事件排程表，事件排程表不會違 反知壞條件’事件排程表包含該序列應力集中事件，且 序列中的每兩個連續應力集中事件之間溫度保持。 本&月第―態樣的―實施例中，測定損壞條件包含 基㈣火陶1主體中的應力，iL基線耐火陶曼主 體經歷該序列應力集中事件。 在本發明第二態樣的一實施例中，基線耐火陶竟主體 為經歷該序列應力集.中事件而損壞者。 在本發明第二態樣的_實施例中，方法進—步包含就 非計畫應力集中事件，監測耐火陶竟主體，且若發生非 計晝應力集中事件後，促使耐火m體保持溫度。 在一或更多實施例中，本發明的方法可防止或減少融 合隔離管在存有蓄意應力集中事件時損壞的風險。 在一或更多實施例中，本發明的方法可確保融合隔離 官在所有時候皆呈可管理的應力位準。 本發明的附加特徵和優點將詳述於後，且熟諳此技術 者在參閱或實行本發明所述說明内容或巾請專利範圍和 附圖後，在某種程度上將變得更清楚易僅。 應理解以上概要說明和下述詳細說明僅為示例性本發 201210957 月且意圖提供概觀或架構以對本發明主張的本質和特 I·生有所了解。所含附圖提供對本發明的進一步了解，其 並併入及構成說明書的一部分。 【實施方式】 除非另外指明，否則說明書和申請專利範圍中所有如 表示成分重量百分比與莫耳百分比、尺寸和某些物性的 數值據悉可在所有情況下按照「約」一詞修改。亦應理 說月曰和申叫專利範圍中的精確數值構成本發明的附 加κ施例’並致力於確保實例所述數值的準確度 '然任 何測量數值本質上都有—些因測量技術標準差所引起 誤差。 除非另有所|曰，否則本發明為說明及主張所用的不定 冠闺一 J係指「至少-」，而非限制成「只有一」。例 如’除非文中清楚指明，否則「一保持值」包括具有一、 二或更多保持值的實施例。 /下詳細說明可提4許多特定細節，以提供對本發明 貫施例更深入的了組。姊、# & 无、δ日此技術者將清楚明白本發 明實施例當可不依所述部分或所有特定細節實行。在1 :情況下’未詳述已知特徵結構或製程，以免讓本發明 一 頰似或相同的元件符號可用來表 示共同或相仿的元件。 融合下拉製程係目前用於製造具高表面品質的薄玻璃 10 201210957 土板以製ie_些顯示裝置的領先技術，顯示裝置包括、 不限於液曰曰顯不器（LCD )。此成形技術首先由美國紐 、·-、康丁（ Corning )公司開發，技術包含將熔融玻璃串流 輸送到-般稱為「隔離管」<「融合隔離管」的成形槽， 成形槽包含兩個實質垂直壁（稱為堰）、使熔融玻璃溢出 兩個堰的頂表面’且如兩個分離串流般沿著隔離管的側 表面〃IL下刀離_流於兩側表面的會合底部融合成單一 玻璃帶。接著以預定溫度、黏度和速度，將單—玻璃帶 下拉成預疋寬度和厚度’然後經冷卻至彈性狀態、切割 及最後加工而製仔多片玻璃片。由於玻璃帶的兩個主要 表面不接觸隔離管的固體表面、而只接觸關環境，故 玻璃帶將呈現LCD玻璃基板所期的純淨表面品質。㈣ 玻璃和隔離管的熱管理係獲得成功可靠的玻璃成形製程 和致又可接爻的產品品質的關鍵。為此，在整個生產 運轉期間’隔離管通常設在熔爐（有時稱為「電灶」)内， 且不斷測量及控制熔爐内的溫度場。 隔離管通常由大片耐火材料製成’例如包含結石、氧 結氧化铭化鎂、碟紀礦等财火陶竟。隔離管的 尺寸和幾何形狀敎性對成功可靠的生產製程而言十分 重要。隔離管本身係玻璃片製造系統中非常昂貴的部 件因此’總疋而要維持結構和幾何形狀完整性及延 隔離管壽命。 大量文獻探討隔離管内的熱應力，隔離管一般包含大 片陶竟材料’熱應力係由隔離管主體的不同區域所接觸 201210957 的溫差產生。本發明尤其提供在隔離管的使用期限内進 行包括初始啟動、正常運行、暫時停止製程、製程停工、 緊急處理、解決問題等時，管理隔離管内的熱應力的方 式。 第3圖顯示在不同融合隔離管301、3 03、3 05、3 07、 〇 311 313中，最大融合隔離管應力與絕對溫 差的關係。融合隔離管的尺寸大小依序為3〇1 < 3〇3 < 305 < 307 < 309 < 310 < 311 < 313。測量堪頂表面與融 合隔離管根部間的溫差。第3圖溫差軸上的圓點係指應 用1 J時時’形成損壞應力條件所需的溫差。從第3圖 可發現，最大融合隔離管應力隨著溫差和融合隔離管尺 寸增加而升高。亦可發頰，r 發見（堰頂表面與根部間）溫差必 微增加會導致最大施加廡 刀愿刀狀態大幅升高。故應力隼中 事件對大融合隔離管而古尤1雜 一 並非可行的解決方法， 爭件 楹你3 a 為泎夕應力集中事件在啟動或 細作融合下拉製程時係 一 在太心 要的，且其他則在計晝之外。 在本發明的—態樣中 更力熱的耐火陶瓷主體錄® 序列應力集中事件。在哕床“ U主體緵歷— 宜丛 以序列中的每兩個連續應力隹由 事件之間’使加熱的耐火陶竟 1力集中 應力集中事件以SE表-體保持溫度一段時間。 θ 表不，且溫度保持時期以TF矣 疋以應用到加熱耐火陶究 ，TE表示。 SE(,)、TE c 更主體的事件排程表形式為.201210957 VI. INSTRUCTIONS: This application claims priority to U.S. Provisional Patent Application No. 61/378,154, filed on August 30, 2010. TECHNICAL FIELD OF THE INVENTION The present invention relates to a method of managing stress levels in a heated refractory ceramic body undergoing a stress_riser event. More particularly, the present invention relates to a method of managing stress levels in a refractory ceramic fusion separator during a fusion pull-down process. The present invention is useful in the manufacture of glass sheets such as those used in liquid crystal displays (LCDs). [Prior Art] Glass sheets can be made from molten glass using a fusion pull-down process as described in U.S. Patent No. 3,338,696 (published on August 29, 1967; Dockerty-I) and No. 3,682,609 (August 1972) 8 曰 open; Dockerty-II). Figure 1 illustrates a typical fused pull down device used to make a glass sheet. In the figure, the molten glass crucible is conveyed into a forming tank called the separator 5, and the forming groove is made of a refractory ceramic material. The molten glass 1 flows through the top of the crucible 3 to form two separate streams <7, 9, and the streams 7, 9 flow down the opposing converging side walls 丨丨, 13 of the fused isolation tube 5. At the root 15 or bottom of the fusion isolator 5, the separated streams 7, 9 of molten glass are combined into a single molten glass stream 17, which is then drawn into a glass sheet. The key advantage of this process is the outer surface of a single stream 17 201210957 12, 14 does not touch the fusion - the stream is pulled into the side wall of the IT ^ 13 °, therefore, from the single quality. The outer surface of the granule is pure and flame-polished. Figure 2 shows the system for manufacturing the glass piece by using the refining capacity. The molten glass 2// 21 is used to receive the raw material and dissolve the raw material. The system 19 can include a clarification vessel 27 that receives the smelting glass 25 from the melting test sigma 21 and the gas enclosure that may be incorporated into the molten glass when the smelting glass 5 is processed to cemet the material. The system 1 9 may include a search for the stalks 29, the sifter 29 receives the molten glass 25 from 27, and the molten glass 25 is stirred in the month 29 to improve the molten glass 25 Temporary from, _. The charging device 19 includes a conveying container 3 1, and the receiving unit 31 receives the glass from the sanding device and is disposed below the conveying container 31. The downcomer 33° is received to receive the molten glass 25 from the transport container 31. The molten chain #(四)glass 25 then flows from the downcomer 33 into the inlet pipe. The inlet pipe 35 is connected to the opening 3 of the fusion isolation pipe 5: =; 5? to the isolation pipe 5. Although Fig. 2 shows that the fuse and the ^iT are disposed in the electric cooker, the electric cooker may include an insulating heating element: a tube to control the temperature of different portions of the fusion isolating tube 5. At the beginning of the fusion pull-down process, the inlet pipe 35 is primarily connected to the downcomer 33. 22 is controlled to heat up to the glass manufacturing temperature, "Preparation == 25' a container 21 receives and "raw material = heart glass 25. After controlling the heating, the fusion isolation tube 5 goes through 4 and at least some events are stress concentration events, for example Main electricity: Knife-fit, glass composition conversion, insulation change and installation or removal of temporary equipment required to manufacture glass sheets for 201210957. Stress concentration events will significantly increase the stress level in the fusion isolation tube. Stress levels in the fusion isolation tube The rise is due to the large change in the temperature gradient across the isolation tube in a very short period of time. If at a constant temperature, the stress level in the fusion isolation tube exceeds that of the fusion isolation tube at this temperature. The maximum stress, then the structural damage will occur when the melt is separated from s. The rupture is a common form of damage of the fusion isolation tube. [Summary] Several aspects of the invention are disclosed herein. It should be understood that the aspects may or may not overlap each other. Thus, a portion of one aspect may fall within the scope of another aspect, and vice versa. Each aspect is illustrated by some embodiments, which in turn may include one or more A number of specific embodiments. It is to be understood that the embodiments may or may not overlap each other. Therefore, a certain embodiment or a part of a particular embodiment thereof may or may not fall within the scope of another embodiment or a specific embodiment thereof, and vice versa. In a first aspect of the invention, a method of fabricating a glass sheet using a fusion pull-down process comprises (a) forming a molten glass, (b) heating a fusion separator made of refractory ceramic to a glass manufacturing temperature in a furnace (c) subjecting the fusion isolation tube to a first stress concentration event during which the stress level in the fusion isolation tube will rise, and (d) after step (C) 'keeping the fusion isolation tube maintained at a temperature for a period of time within the furnace The temperature profile remains stable, wherein the stress level in the fusion isolation tube will decrease during > retention. 201210957 In an embodiment of the first aspect of the invention, the method is further included in step (4) to The fusion isolation tube undergoes a second stress concentration event during which the stress level in the fusion isolation tube will increase. In an embodiment of the first aspect of the invention, the method further The (4) glass formed by the step (4) is introduced into the groove of the fusion isolation tube, the molten glass flows through the surface of the crucible of the isolation tube, and the molten glass flows down along the opposite side of the fusion separation tube in two separate streams, so that Two of the glazed glass: the stream is merged into a single-melt glass string at the root of the fusion tube, and a single molten glass stream is drawn into a glass sheet. In an embodiment of the first aspect of the invention The method further includes monitoring the fusion isolation tube and detecting the unbalanced stress concentration event, and then causing the furnace to maintain the temperature after the non-counting stress concentration event. In one embodiment, for an unplanned stress concentration event, monitoring the fusion isolation tube and/or the furnace includes measuring the absolute temperature difference between the top surface of the crucible and the root of the fusion isolation tube, and estimating the rate of change of the absolute temperature difference over time. . In an embodiment of the first aspect of the invention, the first stress concentration event occurs with an absolute temperature difference change between the surface and the root, and the absolute temperature difference change rate is greater than l ° c / hour. In an embodiment of the first aspect of the invention, the first stress concentration event occurs with an absolute temperature difference change between the surface and the root, and the absolute temperature difference change rate is greater than 5. In hours. In an embodiment of the first aspect of the present invention, the first stress concentration event 201210957 The absolute temperature difference between the surface and the root is changed. The rate of change of the absolute temperature difference is greater than 10 ° C / hour. In an embodiment of the first aspect of the invention, the method further comprises selecting the length of the temperature retention period of step (4) such that the length of the temperature retention period is proportional to the amount of stress released from the fusion isolation tube. In the embodiment of the invention, wherein the length of the selection comprises determining the damage condition, the damage condition determines how much stress the fusion isolation tube can tolerate and how long it does not occur at a particular temperature. In the second sadness of this & Ming, the method of controlling the stress of heating the refractory ceramic body comprises subjecting the heated refractory body to a _sequence stress set event, wherein during each stress set event, the refractory pottery is heated The stress level in the main will rise. Between each of the two consecutive stress concentration events in the sequence, the fusion isolation tube is maintained at a temperature for a period of time, wherein the melt distribution within the melt remains stable. During temperature maintenance, the level of stress in the fused isolation tube will decrease. You praised the ..... Gong Xi wish knife fruit Y content is accompanied by the absolute temperature difference change rate between the two reference points on the main body of the fire (four), the absolute temperature difference change rate is greater than 1 °c / hour. In a second aspect of the invention, at least one stress concentration event occurs with an absolute temperature difference change rate between two reference points on the body of the refractory urn. The absolute temperature difference change rate is greater than five. . /hour. In a second aspect of the invention, at least the stress concentration event occurs with an absolute temperature difference change rate between the two reference points on the refractory (four) body. The absolute temperature difference change rate is greater than 1 〇〇 c / hr. 201210957 In the present invention, the specified damage conditions, stress and specific damage. In an embodiment of the invention, the method further comprises measuring the condition of the refractory ceramic body, which can be tolerated in the refractory ceramic body, how long the refractory ceramic body does not undergo structural damage for the second aspect - in the embodiment - Step inclusion rule: The event schedule for the main body of the fire-resistant ceramics, the event schedule will not violate the bad conditions. The event schedule contains the sequence of stress concentration events, and every two consecutive stress concentration events in the sequence The temperature is maintained between. In the embodiment of this & month-state, the damage condition is determined to include the stress in the body of the base (4), and the iL baseline refractory terrarium body undergoes the sequence stress concentration event. In an embodiment of the second aspect of the invention, the baseline refractory body is damaged by an event in the sequence stress set. In an embodiment of the second aspect of the invention, the method further comprises monitoring the refractory body for the event of a non-planned stress concentration event, and causing the refractory m body to maintain temperature if a non-counting stress concentration event occurs. In one or more embodiments, the method of the present invention prevents or reduces the risk of damage to the fusion barrier tube in the event of a deliberate stress concentration event. In one or more embodiments, the method of the present invention ensures that the fusion quarantine is at a manageable stress level at all times. The additional features and advantages of the present invention will be described in detail later, and the skilled person will become more apparent to the extent of the description or the description of the invention or the scope of the invention and the drawings. . It is to be understood that the following general description and the following detailed description are merely illustrative of the present invention and are intended to provide an overview or an understanding of the nature of the claimed invention. The accompanying drawings are included to provide a further understanding of the invention [Embodiment] Unless otherwise indicated, all numerical values indicating the percentage by weight of the component and the percentage, size and certain physical properties of the components in the specification and the claims are to be modified in all cases by the word "about". It should also be understood that the exact numerical values in the scope of the patents and claims constitute the additional κ embodiment of the present invention and are intended to ensure the accuracy of the numerical values described in the examples. However, any measurement value is inherently based on some measurement technical standards. The error caused by the difference. Unless otherwise stated, the invention is used to illustrate and claim that the indefinite crown J refers to "at least-" and is not limited to "only one." For example, 'a hold value' includes an embodiment having one, two or more holding values, unless the context clearly dictates otherwise. /Details can be followed by a number of specific details to provide a more in-depth set of embodiments of the present invention.姊, # & None, δ 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 In the case of 1: the known features or processes are not detailed so as not to obscure the present invention as a common or similar component. The fusion pull-down process is currently used to make thin glass with high surface quality. 10 201210957 Earthboard is the leading technology for display devices, including, but not limited to, liquid helium display (LCD). This forming technique was first developed by the United States, New York, and Corning, Inc., and the technology involves the transport of molten glass into a forming tank, commonly referred to as a "isolation tube" < a "fusion isolation tube". Two substantially vertical walls (called 堰), allowing the molten glass to overflow the top surface of the two rafts' and as a result of two separate streams, along the side surface of the isolation tube 〃IL, the knives are separated from each other. The bottom merges into a single glass ribbon. The single-glass ribbon is then pulled down to the pre-twist width and thickness at a predetermined temperature, viscosity and speed and then cooled to an elastic state, cut and finally processed to produce a plurality of sheets of glass. Since the two major surfaces of the glass ribbon do not contact the solid surface of the isolation tube and only contact the closed environment, the glass ribbon will exhibit the pure surface quality expected of the LCD glass substrate. (iv) The thermal management of glass and insulation tubes is the key to successful and reliable glass forming processes and the quality of the products that can be accessed. For this reason, the isolation pipe is usually placed in a furnace (sometimes referred to as a "electric cooker") throughout the production run, and the temperature field in the furnace is continuously measured and controlled. The isolation pipe is usually made of a large piece of refractory material, for example, containing stones, oxygen oxidized magnesium, discite ore, etc. The size and geometry of the isolation tube is critical to a successful and reliable manufacturing process. The isolation tube itself is a very expensive part of the glass sheet manufacturing system and therefore maintains structural and geometric integrity and extends the life of the isolation tube. A large number of literatures have investigated the thermal stresses in the isolation tubes. The isolation tubes generally contain large pieces of ceramic materials. The thermal stress is generated by the temperature difference of 201210957, which is contacted by different areas of the isolation tube body. In particular, the present invention provides a means of managing thermal stress in the isolation tube during initial life of the isolation tube including initial startup, normal operation, temporary shutdown process, process shutdown, emergency handling, problem solving, and the like. Figure 3 shows the relationship between the maximum fused isolation tube stress and the absolute temperature difference in the different fusion isolation tubes 301, 03, 3, 05, 3 07, 311 313 313. The size of the fusion isolation tube is 3〇1 < 3〇3 < 305 < 307 < 309 < 310 < 311 < 313. Measure the temperature difference between the top surface and the root of the fusion isolation tube. The dot on the temperature difference axis in Fig. 3 refers to the temperature difference required to form the damage stress condition at 1 J. From Figure 3, it can be seen that the maximum fused isolation tube stress increases with the temperature difference and the size of the fusion isolation tube. It is also possible to send a cheek, r (see the surface between the dome and the root). The slight increase in temperature will cause the maximum application of the knife to increase sharply. Therefore, the event in the stress 对 is not a feasible solution for the large fusion isolation tube, and the essay is not a viable solution, and the dispute is not too feasible for you to start or fine-tune the pull-down process. And others are outside the plan. In the aspect of the invention, the more intense refractory ceramic body catalogue® sequence stress concentration event. In the trampoline "U-main body calendar - Yi Cong with each of the two consecutive stresses in the sequence 隹 between events" makes the heated refractory pottery 1 force concentrated stress concentration event to SE table-body to maintain temperature for a period of time. No, and the temperature retention period is TF矣疋 applied to the heating and refractory ceramics, TE is expressed. The SE(,), TE c more subject event schedule form is.
SE )(2) E(2)、TEdSE(3)、 、TE SE(n)，其中η係應力集中事件 ‘··…丨Μ、 明的另，使加熱的里二大於丄在本發 J丈主體經歷應力集 12 201210957 事件排程表。於每一應力集中/ 咨古辦乂 曼’使加熱的耐火1¾ 瓷主體保持溫度-段時間 火陶 SE . TR 朁代事件排程表形式A . 叫” τΕ⑴、SE(2)、TE(2)、、s 订:為· 應力集中事件數量且η至少為}。 (n)"中〇係 晝應力集中事件，”u埶的+發明態樣能就非計 加測加熱的耐火陶 畫應力集中事件時，於非計晝應力集中=後發::計 度一段時間。 保持溫 應力集中事件的特徵為，在很短的 主體各處的絕對，·田声從痒n 十火陶瓷 內^ 度㈣變化、或在很短的時Η 内，耐火陶瓷主^ i 的時間 ,,0 . ^ 考點間的絕對溫差明顯礙 / —貫施例中，事件發生時，若耐火陶m 個參考點間的絕對溫差變㈣大於^ 體上兩 件為應力集中事m '時’則視此事 耐火陶竟主體上兩個參考 牛i生時，若 代/小時，⑴w/1㈣對溫差變化率大於 予貝J視此事件為應力集中事件 _，事件發生時，若 隹又貫施例 對溫差變化率大二 體上兩個參考點間的絕 件。2革大於10c/小時’則視此事件為應力集中事 體為融合隔離管的情況下隔點。在耐火陶究主 的堰頂表面，而另一來考心考點可位於融合隔離管 堪頂表面的參寺位於融合隔離管的根部。 度。或者，可堰的頂表面的單點溫 了^兩_的兩個頂表面 代表數個溫度的單—溫度(如數個溫 ：:且 可傲* A HE -ts ± 9或j中位數） J做為堰頂表面的來考 双^ 考皿度。同樣地，根部的參考點 13 201210957 溫度可看作根部的單點溫度。或 平绫，，… 飞者，可如沿著根部的水 奋彳^ 且代表數個溫度的單一严 又 數個溫度的平均或中位數）可做為栌邱μ & & | ，皿“何用於測定參考點溫度的方案應前後一致，以 隨時間不斷測量參考點間的絕對溫差。 在一實施例令，在融合下拉製程中，以控制方式加執 融合隔離管達玻璃製造溫度後，將發生重要的應力集中 事件。遠等應力集中事件包括、但不限於電力重新分配、 玻璃組成轉化、絕緣改變和安裝或移除製造玻璃片所需 的臨時設備。加熱融合隔離管達玻璃製造溫度後可能發 生的應力集中事件特例包括切斷用於加熱融合隔離管的 辅助加熱器電源、自融合隔離管或内設融合隔離管的電 灶移開辅助加熱器’以及將降流管耦接至融合隔離管。 融合下拉製程期間的任何時候也可能發生非排程的應力 集中事件非排程的應力集中事件實例包括輔助加熱器 突然故障、供應融合下拉機器的電力整個失效，以及材 料有缺陷或應力集中在融合隔離管。於排程或非排程的 應力集中事件後，使加熱的融合隔離管保持溫度一段時 間有助於將加熱融合隔離管中的應力位準降至安全位 準。 溫度保持期間係控制耐火陶瓷主體的熱環境，使耐火 陶曼主體内的溫度分布維持穩定（或不變）的時間。熱 環境構成所有配置方式而影響融合隔離管中的溫度分 布’例如加熱設備、冷卻設備、絕緣和氣室。熱環境的 14 201210957 控制例如為藉由監測耐火陶瓷主體上一或更多點的溫度 及相應調整對耐火陶瓷主體的熱輸入’使監測溫度保持 實質不#。在溫度保持期間，耐火陶曼主體中的應力位 準將降低。應力位準降低可表示对火陶曼主體的平均應 力或最大應力減小。在溫度保持期間，因耐火陶瓷主體 有疋的黏彈性，故應力會從耐火陶瓷主體釋放，此將 進一步詳述於後。在溫度保持期間m體中的最大 應力可月匕低於應力閾值，導致耐火陶曼主體的結構損 壞。溫度保持時期長度取決於要從耐火㈣主體釋放多 少應力，且溫度保持時期通常長達數小時。可先驗模型 化，多應力集中事件造成耐火陶究主體中的預期應 力升南’而得到溫度保持時期應多長才能從耐火主體釋 放足夠應力的估計值。 為使融合隔離營俘牲总 “呆持/皿度-段時間的策略可行，耐火 陶瓷材料較佳係在高溫下呈 蠕變和應力釋放。蠕變為 黏彈性η料料#料隨 加於材料的負載1力釋放^表示為又不會改魏 其中峨表應變，Γ代表溫度，ρ代表材料性質，以及 代表時fa1 _應力隨時間釋放的黏彈性材料而言，方程 式（1)的函數/永遠小於零。 。 .^ 仕间，皿下呈現螺變和瘅力鏗 放的示例耐火材料為氧化錯 15和應力釋 孔化銘和其他陶菩 以下實例有助於進-步爷明太欢 ㈤无材枓。 7說明本發明的原理。 在一實例中，於融合下拉製程 % U奴，模型化融 15 201210957 合隔離管中的應力〇融人P5 應力離官係由鍅石製成。融合隔 S或内設融合隔離管的電灶配有辅助加熱器（即輔助 加熱器設置緊鄰融合隔離管 s以把熱傳遞到融合隔離 官）°模型化結果顯示於笛4固 果打於第4圖，並加以說明如下。虛線 ， 堰頂表面與隔離管根部間的溫差，以及實線403 代表融合隔離管中的應力位準。 — 將典型的加熱排程表405應用到融合隔離管。加熱排 程表405結束時，融合隔離管應力為約245傍每平方时， 且堰頂表面與根部間的絕對溫差為約49。。接著，在應 。。集中事件4〇7日夺，自融合隔離管或電灶移開輔助加教 Γ°應力集中事件4G7結束時，融合隔離管應力位準提 冋至約2678碎每平方时（相較於先前應力位準，應力位 =加約993%)，且堪頂表面與根部間的絕對溫差為約 (在應力集中事件4〇7期間，溫差成長率為約 隔離//小時）°接著’將溫度保持時期409應用到融合 J:離官。於溫度保持時期彻後，融合隔離管應力降至 、”勺1888磅每平方吋（相較儿 彳較於先則應力位準’應力減少約 29/。)，且因保持溫度，故絕對溫差仍為㈣。接SE)(2) E(2), TEdSE(3), and TE SE(n), in which the η-system stress concentration event '··...丨Μ, Ming, the other, the heating of the second is greater than the 丄 in the hair J Zhang main body experience stress set 12 201210957 event schedule. For each stress concentration / consult the ancient office of the 乂 ' ' to make the heated refractory 13⁄4 porcelain body to maintain the temperature - the time of the fire pot SE. TR generation event schedule form A. Called " τ Ε (1), SE (2), TE (2 ), s set: for the number of stress concentration events and η is at least}. (n)"Medium 〇 昼 stress concentration event, "u 埶 + invention aspect can be heated and refractory pottery In the stress concentration event, the non-counting stress concentration = after the hair:: count for a period of time. The characteristic of maintaining the temperature stress concentration event is that the absolute temperature of the body is very short, the sound of the field is changed from the iteration of the itch, or in a short time, the time of the refractory ceramic master ,, 0 . ^ The absolute temperature difference between the test sites is obvious. / In the case of the example, if the event occurs, if the absolute temperature difference between the reference points of the fire-resistant pottery is changed (4) is greater than ^, the two parts of the body are stress-concentrated, m 'when' According to this matter, when the refractory pottery is on the main body of the two reference cows, if the generation/hour, the rate of change of the temperature difference is greater than that of the shell. This event is a stress concentration event _, and when the event occurs, if the event occurs, The example shows the difference between the two reference points on the body of the temperature difference. 2 If the leather is greater than 10c/hour, then this event is considered as a stress concentration event in the case of a fusion isolation tube. On the dome surface of the refractory ceramics, another test site can be located at the root of the fusion isolation tube. degree. Alternatively, the single point of the top surface of the crucible can be heated. The two top surfaces of the two _ represent a single temperature of several temperatures (eg, several temperatures: and can be proud of * HE -ts ± 9 or j median) J is used as the surface of the dome to test the double ^ test. Similarly, the root reference point 13 201210957 temperature can be seen as the single point temperature of the root. Or 绫 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The dish "how to determine the reference point temperature should be consistent, in order to continuously measure the absolute temperature difference between the reference points over time. In an embodiment, in the fusion pull-down process, the fusion isolation tube is controlled in a controlled manner to glass manufacturing. After the temperature, important stress concentration events will occur. The far-end stress concentration events include, but are not limited to, power redistribution, glass composition conversion, insulation change, and installation or removal of temporary equipment required to manufacture glass sheets. Typical examples of stress concentration events that may occur after the glass manufacturing temperature include cutting off the auxiliary heater power supply for heating the fusion isolation tube, self-fusion isolation tube or electric cooker with integrated fusion isolation tube to remove the auxiliary heater' and the downflow tube Coupling to the fused isolation tube. Non-scheduled stress concentration events may occur at any time during the fusion pull-down process. Non-scheduled stress concentration event instance packages Sudden failure of the auxiliary heater, total failure of the power supplied to the fusion pull-down machine, and material defects or stress concentration in the fusion isolation tube. After the scheduled or non-scheduled stress concentration event, the heated fusion isolation tube is maintained at a temperature for a period of time. It helps to reduce the stress level in the heating fusion isolation tube to a safe level. The temperature maintenance period controls the thermal environment of the refractory ceramic body to maintain a stable (or constant) temperature distribution within the refractory Tauman body. The thermal environment constitutes all configurations that affect the temperature distribution in the fused isolation tube 'eg heating equipment, cooling equipment, insulation and gas chambers. The thermal environment 14 201210957 controls, for example, by monitoring the temperature of one or more points on the refractory ceramic body and Correspondingly adjust the heat input to the refractory ceramic body to keep the monitoring temperature substantially no. During the temperature maintenance period, the stress level in the refractory Tauman body will decrease. The stress level decrease can indicate the average stress or maximum for the Fire Taman body. The stress is reduced. During the temperature maintenance period, due to the viscoelasticity of the refractory ceramic body, The force will be released from the refractory ceramic body, which will be further detailed later. During the temperature maintenance period, the maximum stress in the m body can be lower than the stress threshold, resulting in structural damage of the refractory Tauman body. The length of the temperature retention period depends on How much stress is released from the refractory (four) body, and the temperature retention period is usually as long as several hours. It can be modeled a priori, and the multi-stress concentration event causes the expected stress in the main body of the refractory ceramics to rise to the south, and how long the temperature maintenance period should be obtained. The refractory body releases an estimate of sufficient stress. In order to make the strategy of "staying/span-stage time" for the fusion trapped captives, the refractory ceramic material is preferably creep and stress released at high temperatures. Creeping into viscoelastic η material #料loaded with the load applied to the material 1 force release ^ is expressed as not changing the strain in the 峨 table, Γ represents the temperature, ρ represents the material properties, and represents the fa1 _ stress released with time For the viscoelastic material, the function of equation (1) is always less than zero. . .^ 仕 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , 7 illustrates the principles of the invention. In one example, the fusion pull-down process % U slave, model melting 15 201210957 The stress in the isolation tube P5 stress is made from vermiculite. The electric stove with the fusion S or the built-in fusion isolation tube is equipped with an auxiliary heater (that is, the auxiliary heater is arranged next to the fusion isolation tube s to transfer heat to the fusion isolation officer). The model result is displayed in the flute 4 4 picture, and explained as follows. The dashed line, the temperature difference between the dome surface and the root of the isolation tube, and the solid line 403 represent the stress level in the fusion isolation tube. — Apply a typical heating schedule 405 to the fusion isolation tube. At the end of the heating schedule 405, the fusion isolation tube stress is about 245 Torr per square foot and the absolute temperature difference between the dome surface and the root is about 49. . Then, yes. . Concentrated events 4 〇 7 days, self-confining isolation tube or electric stove removed auxiliary training Γ ° stress concentration event at the end of 4G7, the fusion isolation tube stress level is raised to about 2678 broken per square time (compared to the previous stress Level, stress level = about 993%), and the absolute temperature difference between the top surface and the root is about (the temperature difference growth rate is about isolation / / hour during the stress concentration event 4 〇 7). Then 'maintain the temperature Period 409 is applied to Fusion J: Departure. After the temperature retention period is completed, the stress of the fusion isolation tube is reduced to "1888 lbs. per square inch of spoon" (the stress is reduced by about 29/ compared to the first stress level), and the absolute temperature difference is maintained due to the temperature. Still (4).
:力集中事件411時，將降流管耗接至融合隔離管。A 事件4U結束時’融合隔離管應力提高至約2彻 、方时’且堰頂表面與根部間的絕對溫差為約 89。〇應力集中事件4 差為力 丁 1朋間出現約3566磅每平方吋的 應力尖峰和約1丨2。^ @ $ 的堰頂表面與根部間的絕對溫差尖 峰。由此可知，若盔^ # …/服度保持時期409,則在應力集中 16 201210957 事件411後，融合隔離管中的應力位準將遠高於3566磅 每平方对，致使融合隔離管處於高損壞風險。 第5圖為本發明一附加態樣的流程圖。融合隔離管做 為第5圖工作流程的耐火陶瓷主體一例。在步驟41申， 取付第一事件排程表應用到基線融合隔離管期間收集的 資料。於控制加熱基線融合隔離管達玻璃製造溫度後， 將第一事件排程表應用到基線融合隔離管◎第一事件排 程表包括-或更多應力集中事件。較佳地，在第一事件 排程表應用期間，基線融合隔離管遭損壞（如破裂），如 此可從資料搜集基線融合隔離管受第一事件排程表限制 相關的有用資訊。資料較佳含有.基線融合隔離管於第一 事件排程表期間的熱史。在步驟43中，資料所含埶史和 基線融合隔離管相關的額外資訊（如基線融合隔離管的 幾何形狀和材料性質）用來模型化在第-事件排程表期 間，基線融合隔離管中的熱應力。 在-實施例令，螺變模型（稱為-合隔=力模型化。在”模型中，應變率二為 ε = Aar (2) 和C*為測 曰其I代表應力，而Γ代表溫度。參數」 Ί二質。可由方程式⑺表示為： (3)， 丨叹玫應變率隨時間為 (s^CIT\Xln 贾數（即 嗎受），則 \When the force concentrates event 411, the downflow tube is consumed to the fusion isolation tube. At the end of the A event 4U, the stress of the fusion isolation tube is increased to about 2°, and the absolute temperature difference between the surface of the dome and the root is about 89. 〇 Stress concentration event 4 is the difference between the pressure and the peak of about 3566 pounds per square inch and about 1丨2. ^ @ $ The absolute temperature difference between the dome surface and the root. It can be seen that if the helmet ^ # / / service retention period 409, after the stress concentration 16 201210957 event 411, the stress level in the fusion isolation tube will be much higher than 3566 pounds per square pair, resulting in high damage of the fusion isolation tube risk. Figure 5 is a flow chart of an additional aspect of the present invention. An example of a refractory ceramic body incorporating the isolation tube as the workflow of Figure 5. At step 41, the data collected during the application of the first event schedule to the baseline fusion isolation tube is taken. Applying the first event schedule to the baseline fusion isolation tube after controlling the heated baseline fusion isolation tube to the glass manufacturing temperature ◎ The first event schedule includes - or more stress concentration events. Preferably, during the application of the first event schedule, the baseline fusion isolation tube is damaged (e.g., broken), and thus the useful information related to the first event schedule can be limited from the data collection baseline fusion isolation tube. The data preferably contains a thermal history of the baseline fusion isolation tube during the first event schedule. In step 43, additional information related to the history of the data and the baseline fusion isolation tube (such as the geometry and material properties of the baseline fusion isolation tube) is used to model the baseline fusion isolation tube during the first-event schedule. Thermal stress. In the example, the screw model (called "separation = force model. In the model", the strain rate two is ε = Aar (2) and C* is the measured value, I represents the stress, and Γ represents the temperature. The parameter "」" can be expressed by equation (7) as: (3), 丨 玫 应变 应变 strain rate with time (s^CIT\Xln Jia number (ie, accept), then \
J 17 (4) 201210957 _故應力σ在特定溫度和應變下為時間函數。方程式⑷ 經數值求解而模型化融合隔離管中的應力。 在步驟45中，從基線融合隔離管中的模型化應力和基 線融合隔離管材料的靜態疲勞資料，推得構造與基線融 合隔離管相同或相仿的融合隔離f的損壞條件。藉由研 究基線融合隔離管材料將破裂的條件，可先驗收集靜態 疲勞資料。此可涉及使材料在不同溫度下經歷各種拉伸 應力’以測定何種拉伸應力與溫度組合會造成材料破 裂。模型化應力提供基線融合隔離管在—定溫度下隨時 間變化的應力。損壞條件明定構造與基線融合隔離管相 同或相仿的融合隔離管可容忍多少應力和在特定溫度下 或溫度範圍内多久不會損壞。在步驟47 t，就構造與基 線融合隔離管相同或相仿的目標融合隔離管，設計及規 定不違反損壞條件的新事件排程表。 在步驟49中，於加熱目標融合隔離管達玻璃製造溫度 後’將新事件排程表應㈣目標融合隔離管。新事件排 程表包括上述-或更多應力集中事件和—或更多溫度保 持時期。第4圖為新事件排程表—例。_條件用來測 定各溫度保持時期應多&。於每一應力#中事件後或連 續應力集中事件之間，釋放足夠的應力係很重要的，如 此將新事件排程表應用到第二融合隔離管所引起的融合 隔離管中的累計應力位準仍小於損壞條件明定的損壞： 值。 如上所述，利用融合下拉製程製造玻璃片的方法涉及 18 201210957 將溶融玻璃輸送到加熱的融合隔離管、使熔融玻璃流過 加熱融合隔離管的堪頂表面、並使熔融玻璃以兩個分離 串流的方式沿著融合隔離管的側邊流下、使熔融玻璃的 兩個分離串流合併成單一熔融玻璃串流，以及將單一熔 融玻璃串流拉製成玻璃片。在初始階段熔化原料以形成 熔融玻璃，同時加熱融合隔離管達玻璃製造溫度。玻璃 製造溫度為數百度錢玻璃㈣而定。加熱融合隔離管 達玻璃製造溫度後，於融合下拉系統中執行一些事件， 而部分事件可看作融合隔離管的應力集中事件。如上所 述，於應力集中事件後或每兩個連續應力集中事件之 間’策略性應用溫度保持時期，以控制加熱的融合隔離 管中的應力位準。接著，㈣融玻璃輸送到加熱的融人 隔離管’及形成玻缚片。形成玻璃片時，可就非計晝或 意外的應力集中事件，龄屯丨‘為^ 入 •-測加熱的融合隔離管；且者 現非計晝應力集中事件時，可 田x Μ ^ tb 6A is 4, 降低加熱融合隔 位準的方案H施例t， 間内堰頂表面與加熱融人 权吁 用…… 部間的絕對溫差。(應J 17 (4) 201210957 _The stress σ is a function of time at a specific temperature and strain. Equation (4) is numerically solved to model the stress in the fusion isolation tube. In step 45, from the modeled stress in the baseline fusion isolation tube and the static fatigue data of the baseline fusion isolation tube material, the damage condition of the fusion isolation f that is identical or similar to the baseline fusion isolation tube is derived. Static fatigue data can be collected a priori by studying the conditions under which the baseline fusion barrier material will rupture. This may involve subjecting the material to various tensile stresses at different temperatures to determine which tensile stress and temperature combination will cause the material to break. The modeled stress provides a baseline fusion of the isolated tube at a constant temperature. The damage condition is determined to be the same or similar to the baseline fusion isolation tube. How much stress can be tolerated and how long it will not be damaged at a specific temperature or temperature range. In step 47 t, a target fusion isolation tube identical or identical to the baseline fusion isolation tube is constructed to design and define a new event schedule that does not violate the damage condition. In step 49, after heating the target fusion isolation tube to the glass manufacturing temperature, the new event schedule should be merged with the isolation tube. The new event schedule includes the above- or more stress concentration events and/or more temperature retention periods. Figure 4 is a new event schedule - an example. The _ condition is used to determine the temperature retention period should be more & It is important to release sufficient stress between each stress # event or continuous stress concentration event, so that the new event schedule is applied to the cumulative stress position in the fusion isolation tube caused by the second fusion isolation tube. The damage is still less than the damage specified by the damage condition: value. As described above, the method of manufacturing a glass sheet using a fusion pull-down process involves 18 201210957 transporting molten glass to a heated fusion isolation tube, flowing the molten glass through the top surface of the heated fusion isolation tube, and causing the molten glass to be separated into two separate strings. The flow pattern flows down the sides of the fused isolation tube, combining the two separate streams of molten glass into a single stream of molten glass, and drawing a single stream of molten glass into a sheet of glass. The raw material is melted in the initial stage to form molten glass while heating the fused isolation tube to the glass manufacturing temperature. The glass is manufactured at a temperature of several hundred degrees of glass (four). Heating the Fusion Isolation Tube After the glass manufacturing temperature, some events are performed in the fusion pull-down system, and some events can be seen as stress concentration events in the fusion isolation tube. As described above, the temperature is maintained during the stress concentration event or between every two consecutive stress concentration events to control the stress level in the heated fusion isolation tube. Next, (iv) the molten glass is conveyed to the heated fuser tube' and the glass sheets are formed. When a glass sheet is formed, it can be a non-counterfeit or unexpected stress concentration event, and the age of 屯丨 is a fusion isolation tube for heating and heating; and when the stress concentration event is not counted, the field can be x Μ ^ tb 6A is 4, the scheme of reducing the heating fusion partition H. The example t, the inner dome surface and the heating and human rights appeal... The absolute temperature difference between the parts. (should
用上迷有關测定絕對P 次Μ 差的方法）。可從絕對溫差盥時間 貝4測疋絕對溫差隨時間的變化 =融合隔離管已或正經歷應力集中事件;Use the method of determining the absolute P Μ difference). The absolute temperature difference can be measured from the absolute temperature difference 盥 time. 4 The fusion isolation tube has been or is undergoing a stress concentration event;
:中料後，將溫度保持事件應用到融合隔離 合隔離管中的應力仅準達安全位準 S 整個操作階段’反覆進行此程序。^下拉製程的 雖然本發明已以―些^ 路如上，然熟諳此技術 19 201210957 者在不脫離本發明的精神和範圍内，當可從本文推知其 他貝知例。因此’本發明的保護範圍視後附中請專利範 圍所界定者為準。 【圖式簡單說明】 如上為附圖說明。各圖不必然按比例繪製，主 簡潔呈現，某此特n，士棋4 L 尚^楚 示。 二特徵結構和一些視圖當可放大或概要圖 第1圖圖示在融合下拉製程期間，熔融破 隔離管的堰頂表面。 机過融合 第2圖圖示玻璃片製造系統。 第3圖為顯示就一些融合隔離管尺寸範圍而丄 應力和堰頂表面與根部I溫差㈣係I ^ ’最大 第4圖為顯示根據本發明一實施例，當融 歷一序列事件時’融合隔離管應力與時間和主S ^ 時間的關係圖。 I差量與 第5圖為根據本發明—態樣，控制耐 應力的製程流程圖。 竞主體中的 17 【主要元件符號說明】 I 炫融玻璃 5 隔離管 II ' 13 側壁 堰 串流 12' 14表面 201210957 15 根部 19 糸統 21 熔化容器 25 炫融玻璃 27 澄清容器 29 攪拌容器 31 輸送容器 33 降流管 35 入口管 37 開口 41、43、45、47、49 步驟 301、3 03、305、3 07、309、310、311、313 隔離管 401 虛線 403 實線 405 排程表 407、411 事件 409 溫度保持時期 21: After the material is filled, the temperature-maintenance event is applied to the fused isolation isolation tube and the stress is only allowed to reach the safety level. S This process is repeated throughout the operation phase. ^ DOWNLOAD PROCESS Although the present invention has been described above, it is to be understood that the present invention is not limited by the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope defined in the patent application. [Simple description of the drawings] The above is a description of the drawings. The figures are not necessarily drawn to scale, the main presentation is concise, and some of the special n, the chess 4 L is still shown. Two Features and Some Views When Expandable or Schematic Figure 1 illustrates the melting of the dome surface of the isolation tube during the fusion pull-down process. Machine over-fusion Figure 2 shows the glass sheet manufacturing system. Figure 3 is a graph showing the temperature difference between the 丄 stress and the dome surface and the root I for some fusion isolation tube size ranges. (4) The maximum Fig. 4 is a view showing the fusion of a sequence of events according to an embodiment of the present invention. Isolation tube stress versus time and main S ^ time. The I difference and Fig. 5 are flow charts showing the process of controlling stress resistance according to the present invention. 17 in the competition [Description of main components] I glazed glass 5 Isolation pipe II ' 13 Side wall 堰 stream 12' 14 surface 201210957 15 Root 19 糸 21 Melting container 25 Glazed glass 27 Clarification container 29 Stirring container 31 Transportation Container 33 downcomer tube 35 inlet tube 37 opening 41, 43, 45, 47, 49 steps 301, 3 03, 305, 3 07, 309, 310, 311, 313 isolation tube 401 dashed line 403 solid line 405 schedule 407, 411 Event 409 Temperature Hold Period 21