^45181 A7 B7 經濟部智慧財產局員工消費合作杜印製 五、發明說明（1) 本發明有關一種非中斷之線內連續鑄造-滾軋方法， 以獲得6 m m至1 5 m m的預鋼條，一開始，於液態蕊心 減縮後，厚度小於60mm、寬度爲800至3000 m ιώ的厚鋼板離開連續鑄造機，形成適於滾軋的狀態，並 可於鑄造機的下游處提供中介繞捲，以便製作出厚度低至 0 . 6mm的繞捲或6 mm的平板。所使用鋼爲低含碳及 /或極低含碳型（<0 . 0 4%)，因而就特別的用途而 言，其可取代冷軋 '高強度製品。 以高抗機械性鋼、所謂的"高強度"鋼，及含碳量低或 極低的鋼製造具有上述特徵的高品質捲繞鋼線時，於鑄造 及其後的滾軋程序中會出現製造上的困難。爲了處理此一 問題，許多設備廠採用所謂的“米你滾軋機”以在連續鑄 造後提供立即的切斷，以便分離鑄造段其後的滾軋段。以 此方式可降低製造繞捲的設備成本，以及相關的轉換成本 〇 然而，利用三個小滾軋機的方式無法保證製作出的繞 捲製品可達到理想的特性，由於每次離開模件的5 0 m m 薄鋼板並未顯現最佳的內部結構特性，包括晶粒大小、分 離情形的出現、因熔渣品質不足所造成的表面缺陷，此等 對銅板與鋼材間的模潤造成很大的影響。其他的缺陷可能 來自所使用的模件，例如專利第E P 0 1 4 9 7 3號所 述及|當模件爲中心漏斗型且出口處呈現矩形的斷面，並 且無其餘的漏斗時，會在固化的鋼板表面引生出極大的應 (請先閱讀背面之注意事項再填寫本頁) 裝 •^1 n n · If «^1 1 - 本紙張尺度適用中國國家標準（CNS)A4規格（210^ 297公釐） -4 - 經濟部智慧財產局員工消費合作社印製 445181 A7 _B7_ 五、發明說明（2 ) 力。另一方面，即使模件不具漏斗仍可製作出厚度大於 9 Omm且表面品質良好的鋼板（中型），然而離開連續 鑄造機並斷切成3 0 - 5 0mm的此鋼板無法製作出超薄 的繞捲。其理由主要是因爲前述鋼板在離開鑄造機時的厚 度始終大於7 0mm，因而無法製作出厚度小於1mm的 熱繞捲來代替某些重要應用的冷軋製品，此外就公差的要 求以及因其後第二尺寸之連續長時間滾軋所形成的表面粗 度均是無法適用的原因。 第EP 0 34409 5號專利提出一種替代方案， 可以鑄造一滾軋來製作出上述型式之繞捲的最終製品。然 而，可輕易的看出，上述專利僅藉由冷卻鑄造機的內部滾 輪來進行第二次冷卻，因此其所降低的溫度有限，而無法 達成工業上的應用。所獲得的蕊心固化滾軋剛好低於固化 溫度*特別是1200至1500t的範圍，由於溫度過 高產生二次氧化的問題而無法達到實用要求。 圖1 a的習知技術描述了進一步問題，其中在模件的 下游顯示一些內部冷卻導引滾輪1 0 *且置於主要的冷卻 位置。鑄件外殼1的冷卻溫度依然很高，使得外殼厚度（ A )過薄，並因靜態鐵質的推擠使得在滾輪間產生連續的 突起。此突起對於操作安全性、生產性及鑄造品質皆造成 負面的影響。再者，僅以內部冷卻滾輪所實施的二次冷卻 ，會導致過長的固化時間，並於凸板2間形成較大的冶金 長度，且在定鑄造速度下產生固化錐體3 a的頂點（圖1 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -5- <請先閲讀背面之注意事項再填寫本頁)^ 45181 A7 B7 Consumption cooperation by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Du printed 5. Description of the invention (1) The present invention relates to a continuous casting-rolling method in the line to obtain 6 mm to 15 mm pre-steel bars At the beginning, after the shrinkage of the liquid core, thick steel plates with a thickness of less than 60 mm and a width of 800 to 3000 m are left from the continuous casting machine to form a state suitable for rolling, and an intermediate coil can be provided downstream of the casting machine. In order to make coils or flat plates with a thickness as low as 0.6 mm. The steel used is of low carbon content and / or very low carbon content (< 0.4%), so it can replace cold rolled 'high strength products' for special applications. When manufacturing high-quality coiled steel wire with the above characteristics from high mechanical resistance steel, so-called " high strength " steel, and steel with low or very low carbon content, it is used in the casting and subsequent rolling process. There will be manufacturing difficulties. To deal with this problem, many equipment plants use so-called "Mi Ni rolling mills" to provide immediate cut-off after continuous casting in order to separate the subsequent rolling sections of the casting section. In this way, the cost of the equipment used to manufacture the coils and the related conversion costs can be reduced. However, the use of three small rolling mills cannot guarantee that the coiled products produced can achieve the desired characteristics. The 0 mm thin steel plate does not show the best internal structural characteristics, including grain size, the appearance of separation, and surface defects caused by insufficient slag quality, which have a great impact on the mold wetting between the copper plate and the steel. . Other defects may come from the module used, such as described in the patent EP 0 1 4 9 7 3 and | When the module is a central funnel type and the rectangular section at the exit, and there is no remaining funnel, it will A great deal of stress is induced on the surface of the solidified steel sheet (please read the precautions on the back before filling this page). Installation • ^ 1 nn · If «^ 1 1-This paper size is applicable to China National Standard (CNS) A4 specifications (210 ^ 297 mm) -4-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 445181 A7 _B7_ V. Description of Invention (2) Power. On the other hand, even if the module does not have a funnel, it is possible to produce a steel plate (medium) with a thickness greater than 9 Omm and a good surface quality. However, this steel plate cannot be made into an ultra-thin steel plate after leaving the continuous casting machine and being cut into 30-50 mm. Winding. The reason is mainly because the thickness of the aforementioned steel plate when leaving the casting machine is always greater than 70 mm, so it is not possible to produce hot-rolled coils with a thickness of less than 1 mm to replace cold-rolled products for some important applications. The surface roughness formed by continuous long-time rolling of the second size is the reason why it is not applicable. EP 0 34409 No. 5 proposes an alternative, which can be cast and rolled to produce the final coiled product of the above type. However, it can be easily seen that the above patent only performs the second cooling by cooling the inner rollers of the casting machine, so the temperature lowered by it is limited and it cannot achieve industrial application. The obtained core solidification rolling is just below the curing temperature *, especially in the range of 1200 to 1500t, and it cannot meet the practical requirements due to the problem of secondary oxidation caused by too high temperature. The conventional technique of Fig. 1a describes a further problem, in which some internal cooling guide rollers 10 * are shown downstream of the module and placed in the main cooling position. The cooling temperature of the casting shell 1 is still very high, making the shell thickness (A) too thin, and continuous protrusions between the rollers due to static iron pushing. This protrusion has a negative impact on operational safety, productivity and casting quality. Furthermore, the secondary cooling performed only by the internal cooling rollers will cause an excessively long solidification time, and form a large metallurgical length between the convex plates 2 and generate the apex of the solidified cone 3 a at a constant casting speed. (Figure 1 This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) -5- < Please read the precautions on the back before filling this page)
I I I II I I 訂·------— I 445 1 8 1 A7 __B7__ 五、發明說明（3 ) )，而干擾鑄造程序。這些干擾是由凸板2的振動所引起 ，其不僅造成熔渣層2 a的變形（參考圖1)，並導致鑄 件外殻的變形，且因主要冷卻程序中不規則的橫向及縱向 熱流密度，而引響到鑄件的表面品質。 固化程序中鋼板厚度的縮減會使這些問題更爲明顯， 例如在第一減縮區中，離開模件後的厚度會從6 5 m m變 成4 0 m m，減少了 3 8 %。當考慮到鑄件表面間剩餘鑄 料之移動所造成的強機械效應時，沿著滾輪實施鑄件外殻 的二次冷卻時，需要連續鑄造程序中局部及順時溫度的精 確控制。因厚度的縮減，必須防止外殼的相互接觸，由於 需進行完全的固化，因而需利用專利第 EP 0286862號所述的鑄件外殼壓縮段，此時由 於以非規則的方式進行鑄造，因此會產生操作的干擾。 因而專利第EP 0 34409 5所揭露的程序，亦 即，採用此二次冷卻型薄板鑄造機必然無效，且考慮到程 序的經濟性時，鑄造必須以2 4 m /m i η的速度進行。 經濟部智慧財產局員工消費合作社印製 (請先閲讀背面之注$項再填寫本頁〉 上述專利第EP 0282862號提出一製造鋼條 的程序，其中離開連續鑄造機的鋼板，已藉由熔接先前的 固化壁並透過壓縮而縮減，並在其後的滾軋站中轉變成鋼 條。然而，由於先前固化鋼板壁之熔接程序上的技術問題 ，以及有限的產量，此程序及相關的設備並不適於製造極 薄、“高強度”的繞捲’實際上’此技術並無工業上的應 用。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公髮) ^ 8 A7 B7 五、發明說明（4) 多種習知製造繞捲的其他製程及設備可直接在線上預 知鑄造及其後的滾軋階段，例如，據專利第 EP 0415987號所揭露者，然而已發現，若無利 用液態蕊心減縮技術以及依據本發明申請專利範圍第1項 所請求的特定裝置，則無法獲得上述之極薄繞捲》 因此，本發明的目的在於提供一種製造預鋼條的製程 ’可由此鋼條獲得極薄且高強度的鋼材繞捲，此鋼材的含 碳量非常低，且所獲得繞捲厚度可薄至〇 . 6mm，達到 相同於冷軋製品的品質。 實驗證明，此預鋼條必須具有以下的特徵： 離開鑄造機後，兩表面的橫向及縱向溫度分布必須爲 特定値，且溫度變化範圍小於± 3 0 °C，以獲得滾軋的穩 定性，即使出現明顯的縮減，亦不會產生所謂“大幅減小 ”的情形，並可獲得優良的幾何特性，且其公差標準優於 繞捲的國際標準； 依據國際繞捲標準的機械特性； 直到最後的下捲器，可達到“無中斷”程序所需的標 準尺寸及速度，尤其是針對介於0.6至1mm之標準尺 寸的繞捲。 藉由申請專利範圍第1項所述的步驟，可達成具有上 述特徵的標的。此程序的較優特徵及較佳實施例揭路於附 屬項中。 用以實施依據本發明之製程的設備揭示於申請專利範 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁)I I I II I I Order -------- I 445 1 8 1 A7 __B7__ V. Description of the Invention (3)) and interfere with the casting process. These disturbances are caused by the vibration of the convex plate 2, which not only causes the deformation of the slag layer 2a (refer to FIG. 1), but also causes the deformation of the casting shell, and is caused by the irregular transverse and longitudinal heat fluxes in the main cooling process. , And evoked the surface quality of the casting. These problems are made more apparent by the reduction of the thickness of the steel plate during the curing process. For example, in the first reduction zone, the thickness after leaving the module changes from 65 mm to 40 mm, a reduction of 38%. When taking into account the strong mechanical effects caused by the movement of the remaining casting material between the casting surfaces, the secondary cooling of the casting shell along the rollers requires precise local and clockwise temperature control in the continuous casting process. Due to the reduction in thickness, it is necessary to prevent the shells from contacting each other. Since complete curing is required, the compression section of the casting shell described in Patent No. EP 0286862 needs to be used. At this time, operation is caused because casting is performed in an irregular manner. Interference. Therefore, the procedure disclosed in Patent No. EP 0 34409 5, that is, the use of this secondary cooling type thin plate casting machine is inevitably ineffective, and when considering the economics of the procedure, the casting must be performed at a speed of 24 m / m i η. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the note on the back before filling this page) The above-mentioned patent No. EP 0282862 proposes a procedure for manufacturing steel bars, in which the steel plates leaving the continuous casting machine have been welded The previous solidified wall was reduced by compression and transformed into steel bars in subsequent rolling stations. However, due to technical problems in the welding procedure of the previously solidified steel plate wall and limited production, this process and related equipment It is not suitable for making very thin, "high-strength" coils. In fact, this technology has no industrial application. This paper size is applicable to China National Standard (CNS) A4 (210 X 297). ^ 8 A7 B7 V. Description of the invention (4) Various other processes and equipment for manufacturing coils can directly predict the online casting and subsequent rolling stages, for example, as disclosed in patent EP 0415987, but it has been found that if there is no Using the liquid core reduction technology and the specific device requested according to the first patent application scope of the present invention, the above-mentioned extremely thin winding cannot be obtained. Therefore, the object of the present invention is to In providing a process for manufacturing a pre-steel strip, a very thin and high-strength steel coil can be obtained from the steel strip. The carbon content of this steel is very low, and the thickness of the coil obtained can be as thin as 0.6 mm, which is the same as The quality of cold-rolled products. Experiments have shown that this pre-steel must have the following characteristics: After leaving the casting machine, the lateral and longitudinal temperature distributions of the two surfaces must be specific 値, and the temperature change range is less than ± 30 ° C to obtain The stability of rolling, even if there is a significant reduction, will not produce the so-called "significant reduction", and can obtain excellent geometric characteristics, and its tolerance standards are better than the international standards for winding; according to international winding standards Mechanical characteristics; until the final unwinder, it can reach the standard size and speed required for "non-interrupted" procedures, especially for windings with standard sizes between 0.6 and 1 mm. The steps described above can be achieved with the above characteristics. The better features and preferred embodiments of this program are uncovered in the subsidiary items. The equipment used to implement the process according to the present invention is disclosed The paper size of the patent application model applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling in this page)
I 經濟部智慧財產局員工消費合作社印製 445 1 8 1 A7 B7 五、發明說明（5) 圍第8項中，並結合其附屬項的內容。 (請先閱讀背面之注意事項再填寫本頁) 依據本發明之製程及相關設備的這些及其他目的、特 徵及優點可由以下非限制的實施例及配合的圖示而更爲淸 楚，其中： 圖1顯示一般連續鑄造設備的縱向剖面圖，其中未指 出所採用的二次冷卻形式； 圖1 a顯示習知技術中，以二次冷卻法進行冷卻的鑄 造滾輪導引部； 圖1 b顯示對應的滾輪導引區，其中二次冷卻是依據 本發明的方法來獲得。 主要元件對照表 C :鑄件 1 :外殼 2 :凸板 4 :模件 4 a :模件出口 經濟部智慧財產局員工消費合作杜印製 5 :水套 1 0 :導引滾輪 1 1 :滾輪 1 2 :噴嘴 1 3 :區域 1 4 :浸沒噴嘴 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 445 187 A7 B7 五、發明說明（6 ) 2 0 :滾輪導引部 21:鑄造導引部 (請先閱讀背面之注意事項再填寫本頁) 2 2 :部位 本案程序的第一階段是開發一種特殊形式的氣/水二 次冷卻，尤其是結合了液態蕊心縮減技術。此程序的目的 在於使與鑄造滾輪接觸之外表面的橫向及縱向溫度曲線落 於± 3 o°c的變動範圍內，以便在三個方向上獲得極爲均 与的溫度分布，亦即鋼板表面及液態蕊心間、相對於鑄造 方向之每一橫剖面的周邊及沿著鑄造方向之每一縱剖面的 周邊。同時可獲得具有特殊內結構的鑄件，其具有極細的 晶粒，且晶粒間無隔離的情形，而使凸起的效應降至最低 ，此外在低於1 2 0 0 °C的出口溫度下具有高的鑄造速度 (高達8m/m i η )，以防止奧氏晶粒變大而對滾軋中 的製品造成負面的影響。 經濟部智慧財產局員工消費合作社印製 因此在鑄造機的各通道中，必須以上述三個方向的強 度及均勻度參數來控制冷卻程序。就強度方面，必須確保 適當的水量，相當於0 . 6 — 3 Ι/kg製品的量’且冷 卻密度（1 /m i η每m 2 )必須大於鑄造機之上部者’其 中鑄造機上部之鋼板溫度相當高，冷卻水的蒸氣量很大’ 且鑄件的表殻仍相當薄，此乃爲何可利用液態蕊心來傳熱 的原因。較佳的是使用“氣霧’’型噴嘴。 就上述三個方向之溫度的均句性而言’在固化區的末 -9 - 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公髮〉 44518 1 A7 B7 五、發明說明（7) 端或鑄造機的下方區，相較於平均値，最好是具有較低的 冷卻密度，以使表殻不致產生不良的熱傳導，並具有一定 的厚度而不致有過大的熱差降。 藉由適當地選擇噴嘴數以及噴嘴在每一對相對滾輪間 的噴灑樣式，可獲得每一橫斷面之周邊溫度的均勻性。此 外，需增加背側的傳送以補償前側滾輪及鋼板間之凹區發 生停滞不足的現象，因此必須在鋼板的前側及背側間提供 噴嘴傳送的選擇性控制。就相同的目的，在每一連續滾輪 間，對某些噴嘴實施選擇性的動態控制，並以紅外線感測 器觀測橫斷面之上下表面的溫度，亦相當有用。 就第三方向的溫度均勻性而言，亦即，在縱向剖面上 ，沿著鑄造機對整個傳送及/或冷卻密度的分布實施動態 控制，以便在沿著鑄造機之一個或多個偵測點上，將鋼板 維持在理想的固定溫度。此方向的溫度會被多個參數所影 響，如鑄造速度、液態鋼的鑄造溫度、模件的整個熱交換 及鑄鋼的化學成分。可由沿著縱向剖面半週邊而置放的高 溫計，或由上述的橫向讀取感測器，配合適當的軟體來讀 取溫度，而得以讀取橫剖面之周邊區的平均溫度。 期望的鋼板表面溫度由適當的固化模型來加以計算， 其考慮到： 鋼的化學成分； 鋼對內部變形的靈敏度； 鋼對熱差降（可能造成橫向或縱向的表面脆裂）的靈 本紙張尺度適用中圉國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 裝--------訂--------- 經濟部智慧財產局員工消費合作社印製 445 1 8 A7 B7 五、發明說明（8) 敏度； 鑄造機的幾何特性： 前向的冶金長度； 本發明的目的亦再於提供一種一次冷卻設備’其具有 由氣霧區域閥所控制的不同噴嘴區，且在鑄造機上方的前 側及背側可包括噴嘴，同時在鑄造機下方之前側及背側可 具有不同的噴嘴。這些閥可以僅控制滾輪間的某些噴嘴’ 以便在橫向上可對冷卻有更多的控制。 參考圖1 ，浸沒噴嘴1 4所饋送的預鋼條或鑄件c離 開模件4，並由水套5所冷卻，鋼條在模件出口 4 a可具 有如6 5mm的厚度及5m/m i η的進給速度，接著進 入鑄造滾輪導引部2 0的第一區段2 1 (鉗式），在該處 厚度於固化過程中縮減，且在此區段的結尾減至4 0mm 。相反於專利DE 37 23 543及 EP 028686 2中，鑄件殼在厚度縮減段相互壓濟 而出現問題的情形，在本案的方法中，於厚度縮減結束區 內，預鋼條的外殼間仍有殘留鑄料，其可繼續超出區段 2 1而進入2 2的部位，在2 2的部位，至少於3 b點處 C依據習知技術，在整個滾輪中二次冷卻時需達3 a點） 仍會有所謂的“軟縮減”，亦即液態蕊心縮減。以此方式 ，增加2mm/m的鑄造導引部，可達到〇 . 5mm的厚 度，並獲得優良的鑄件品質。 參考圖1 b ’依據本發明，具有滾輪1 1的鑄造導引 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) » n n >9— n _ 經濟部智慧財產局員工消費合作社印製 445181 A7 B7 五、發明說明（9 ) (請先閱讀背面之注意事項再填寫本頁) 部21提供有二次噴灑冷卻系統’其中冷卻噴嘴相對的置 於兩滾輪1 1間’更精確的說是位於1 3的區域。在未加 滾輪外側之冷卻系統的情況下’可使鑄件的表面凸起最小 ，而或與圖1 a的情形相較有較小的凸起情形。因而，此 方法不會千擾到鑄造的程序’同時使外殼的成長更大，如 圖1 b中的厚度B與圖1 a中厚度A的比較情形。同時固 化長度縮短（以3 b代替3 a)，並降低鑄件外部的表面 溫度，此溫度可由位於連續鑄造機末端的光學量測裝置所 偵測。 鑄件C之表面溫度的選擇必須考量連續鑄造程序的生 產安全性，以及使中介滾軋獲得良好的預鋼條品質。就此 目的而言，噴灑冷卻的效應是由滾輪1 1間的區域1 3來 控制，且可進行自身的內冷程序。而一些較佳的噴灑冷卻 方法已在之前加以描述。 經濟部智慧財產局員工消費合作社印製 水流及適當的氣壓由所謂的“噴灑規劃”來設計，其 依據鑄造速度之基本參數，來定義每一區的噴灑強度。這 些噴灑規劃對應至離開上述固化模件的鋼材等級。依鑄造 速度來改變冷卻強度的最簡單方法是利用正比定律，但並 未排除其他的方式。其他的變化方式可依據控制動態，以 便滿足上述所有均句性的標準。 同時亦需配合適當的軟體來提供一硬體，以適當地將 線上滾軋段耦合於鑄造段，以使鑄件在離開鑄造機時，消 除兩線內製程段（液態蕊心縮減及滾軋）中，因不同的程 ~本紙張尺度適用中國國家標準（CNS>A4規格（210 X 297公釐） -丨2- 445181 A7 __B7___ 五、發明說明（10) (請先閱讀背面之注意事項再填寫本頁) 序動態響應所產生的速度差異。此裝置可由機械位置傳送 器及光電電晶體所構成，此光電電晶體偵測傳送器的位置 ，而整個裝置則由特別的內部程式及其校正系統所控管。 此外，尙需提供一硬體，其配合軟體來獲得所需的鋼 條幾何公差，使得鋼板在離開鑄造機時的厚度變異落於 土 1的範圍內。爲了達到此目的，可提供結合於鑄造機之 第一部位的主動位置制動/校正及平行控制器。另一方面 ，鋼板在離開模件時的幾何形狀，最好非爲完整的矩形斷 面，而是在兩側具有0.5至5mm的中心冠。在固化蕊 心滾軋後，預鋼條在雨側最好仍具有大至0 . 4 m m的中 心冠。 經濟部智慧財產局員工消費合作社印製 爲了能置於高溫中（高達1 2 0 0 °C)並確保每站間 的最小拉抽，3至6 N /m 2，滾輪站間的空間至少需爲 2 . 8mm，因此無法使用傳統的環線，而需提供特殊的 水力流體張力裝置，其可間接的量測壓力’並在每站間進 行拉引。再者，每站間的距離最好約爲2 · 6 m ’且最大 的站數最好使滾軋落於奧氏場中，而工作滾輪的直徑最好 小於6 0 Omm以確保最佳的滾輪速度’以避免熱脆裂及 過度的消耗》 另外，在鑄造起始段中，最好以超過1 5分鐘的時間 使用高熔性粉末，如1.5mg/s ，以獲得高的鑄造起 始速度，使得於線內滾軋站後，預鋼條可達到足夠的速度 (高至6 0 m / m i η )，且達到“不中斷”的滾軋流程 ' 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） A7 B7 五、發明說明（n) 〇 最後，爲了使低壓（< 6 0 b a r )下的最大的溫度 損失限制在6 0°C，可插入去縮放器，其容置備有振動機 構的連貫噴嘴，以便覆蓋整個表面。 (請先閱讀背面之注意事項再填寫本頁) I I I I I I-*-r-5, I n n n l 經濟部智慧財產局員工消費合作杜印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）I Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 445 1 8 1 A7 B7 V. Description of the Invention (5) In item 8 and combined with the contents of its subsidiary items. (Please read the notes on the back before filling this page.) These and other purposes, features, and advantages of the process and related equipment according to the present invention can be made clearer by the following non-limiting examples and cooperative diagrams, of which: Fig. 1 shows a longitudinal sectional view of a general continuous casting equipment, wherein the secondary cooling method is not indicated; Fig. 1a shows a casting roller guide which is cooled by a secondary cooling method in the conventional technology; Fig. 1b shows Corresponding roller guide zones, in which secondary cooling is obtained according to the method of the invention. Comparison table of main components C: Casting 1: Shell 2: Convex plate 4: Module 4 a: Module export by the Intellectual Property Office of the Ministry of Economic Affairs, Consumer Printing Du 5: Water jacket 1 0: Guide roller 1 1: Roller 1 2: Nozzle 1 3: Area 1 4: Immersion Nozzle The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 445 187 A7 B7 V. Description of the invention (6) 2 0: Roller guide 21 : Casting guide (please read the precautions on the back before filling this page) 2 2: The first stage of the procedure in this case is to develop a special form of air / water secondary cooling, especially in combination with liquid core reduction technology . The purpose of this procedure is to make the lateral and longitudinal temperature curves of the outer surface in contact with the casting roller fall within the fluctuation range of ± 3 o ° c in order to obtain an extremely uniform temperature distribution in three directions, that is, the surface of the steel plate and Between the core of the liquid core, the periphery of each cross section with respect to the casting direction, and the periphery of each longitudinal section along the casting direction. At the same time, a casting with a special internal structure can be obtained, which has extremely fine grains and no isolation between the grains, so that the effect of protrusions is minimized, and at an outlet temperature below 1 200 ° C It has a high casting speed (up to 8 m / mi η) to prevent the austenite grains from becoming large and adversely affecting the products during rolling. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Therefore, in each channel of the casting machine, the cooling process must be controlled by the strength and uniformity parameters in the above three directions. In terms of strength, it is necessary to ensure an appropriate amount of water, which is equivalent to 0.6-3 Ι / kg of product ', and the cooling density (1 / mi η per m 2) must be greater than that of the upper part of the casting machine', in which the upper part of the casting machine is a steel The temperature is quite high, the amount of cooling water vapor is large, and the case of the casting is still quite thin, which is why the liquid core can be used to transfer heat. It is better to use "aerosol" nozzles. In terms of the uniformity of the temperature in the above three directions, 'at the end of the curing zone-9-this paper size applies to China National Standard (CNS) A4 specification (210 X 297 public hair> 44518 1 A7 B7 V. Description of the invention (7) The end or the lower area of the casting machine, compared with the average 値, preferably has a lower cooling density, so that the watch case does not cause poor heat conduction, and Has a certain thickness without excessive heat drop. By properly selecting the number of nozzles and the spray pattern of the nozzles between each pair of opposite rollers, the uniformity of the peripheral temperature of each cross section can be obtained. In addition, it is necessary to Increase the backside conveyance to compensate for the lack of stagnation in the concave area between the front roller and the steel plate. Therefore, selective control of nozzle delivery must be provided between the front and backside of the steel plate. For the same purpose, between each continuous roller It is also very useful to implement selective dynamic control of some nozzles and observe the temperature of the upper and lower surface of the cross section with an infrared sensor. In terms of temperature uniformity in the third direction, that is, in On the profile, the entire conveyance and / or cooling density distribution is dynamically controlled along the casting machine to maintain the steel plate at the desired fixed temperature at one or more detection points along the casting machine. Temperature is affected by a number of parameters, such as the casting speed, the casting temperature of liquid steel, the overall heat exchange of the mold, and the chemical composition of the cast steel. It can be placed by a pyrometer along the half-perimeter of the longitudinal section, or by the The lateral reading sensor, combined with appropriate software to read the temperature, can read the average temperature of the peripheral area of the cross section. The expected surface temperature of the steel plate is calculated by a suitable curing model, which takes into account: Composition; Steel's sensitivity to internal deformation; Steel's ability to reduce heat difference (which may cause horizontal or vertical surface brittleness) The paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) (please first Read the notes on the back and fill in this page) -------- Order --------- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 445 1 8 A7 B7 V. Description of the invention (8 ) Sensitivity; Geometrical characteristics of the machine: forward metallurgical length; the object of the present invention is to provide a primary cooling device 'with different nozzle zones controlled by aerosol zone valves, and the front and back sides above the casting machine may include Nozzles, which can have different nozzles on the front and back sides below the casting machine. These valves can control only certain nozzles between the rollers so that there is more control over cooling in the lateral direction. Referring to Figure 1, submerged nozzle 1 The pre-steel bar or casting c fed from 4 leaves the module 4 and is cooled by the water jacket 5. The steel bar may have a thickness at the exit 4 a of the module such as 65 mm and a feed speed of 5 m / mi η, and then enter The first section 2 1 (clamp type) of the cast roller guide 20 is reduced in thickness during curing and reduced to 40 mm at the end of this section. Contrary to the patents DE 37 23 543 and EP 028686 2, in the case where the thickness reduction sections of the casting shells are mutually compressed and there is a problem, in the method of the present case, there is still residual between the shells of the pre-steel strips in the thickness reduction end zone. The casting material can continue to exceed the section 21 and enter the position of 2 2. At the position of 2 2, it is less than 3 b. According to the conventional technology, it needs to reach 3 a point during the secondary cooling in the entire roller. There will still be so-called "soft shrinkage", that is, liquid core shrinkage. In this way, by adding a casting guide of 2mm / m, a thickness of 0.5mm can be achieved, and excellent casting quality can be obtained. Refer to Figure 1 b 'According to the present invention, the casting guide with rollers 1 1 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) » nn > 9— n _ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 445181 A7 B7 V. Description of the invention (9) (Please read the precautions on the back before filling this page) Part 21 provides a secondary spray cooling system ' The cooling nozzles are placed opposite the two rollers 11 and 1 'more precisely in the area of 1 3. Without the cooling system on the outside of the roller, the surface protrusion of the casting can be minimized, or the protrusion can be smaller than that in Fig. 1a. Therefore, this method will not disturb the casting process at the same time and make the growth of the shell larger, such as the comparison between the thickness B in Fig. 1b and the thickness A in Fig. 1a. At the same time, the curing length is shortened (3 b is replaced by 3 a), and the external surface temperature of the casting is reduced. This temperature can be detected by an optical measuring device at the end of the continuous casting machine. The selection of the surface temperature of the casting C must take into account the production safety of the continuous casting process and the intermediary rolling to obtain a good pre-steel bar quality. For this purpose, the effect of spray cooling is controlled by the area 13 between the rollers 11 and the internal cooling program can be carried out. Some preferred spray cooling methods have been described previously. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The water flow and appropriate air pressure are designed by the so-called “spray planning”, which defines the spray intensity of each zone based on the basic parameters of the casting speed. These spray plans correspond to the grade of steel leaving the curing module described above. The easiest way to change the cooling strength according to the casting speed is to use the law of proportionality, but other ways are not excluded. Other ways of change can be based on the control dynamics in order to meet all the above-mentioned standards for sentence-sexuality. At the same time, it is necessary to provide a hardware with appropriate software to properly couple the on-line rolling section to the casting section, so that when the casting leaves the casting machine, the two-line process section (liquid core reduction and rolling) is eliminated. Due to different processes ~ Chinese paper standard (CNS > A4 size (210 X 297 mm) applies to this paper size)-丨 445181 A7 __B7___ 5. Description of the invention (10) (Please read the notes on the back before filling (This page) The speed difference caused by the sequence dynamic response. This device can be composed of a mechanical position transmitter and a phototransistor. The phototransistor detects the position of the transmitter, and the entire device consists of a special internal program and its correction system. In addition, it is necessary to provide a hardware body that cooperates with software to obtain the required steel strip geometric tolerances, so that the thickness variation of the steel plate when it leaves the casting machine falls within the range of soil 1. In order to achieve this purpose, Provides active position braking / correction and parallel controller combined with the first part of the casting machine. On the other hand, the geometry of the steel plate when leaving the module is preferably not a complete rectangular fracture Instead, it has a central crown of 0.5 to 5 mm on both sides. After the solid core is rolled, the pre-steel bar on the rain side should preferably still have a central crown of as large as 0.4 mm. Consumer Cooperatives, Bureau of Intellectual Property, Ministry of Economic Affairs In order to be able to be placed in high temperature (up to 12 0 ° C) and ensure the minimum drawing between each station, 3 to 6 N / m2, the space between roller stations needs to be at least 2.8mm, so it cannot be used The traditional loop line needs to provide a special hydraulic fluid tension device, which can indirectly measure the pressure and pull between each station. In addition, the distance between each station is preferably about 2 · 6 m 'and the maximum The number of stations is best to make the rolling fall in the austenite field, and the diameter of the working roller is preferably less than 60 Omm to ensure the optimal roller speed 'to avoid hot embrittlement and excessive consumption "In addition, at the beginning of casting In the segment, it is best to use high-melting powder, such as 1.5mg / s, for more than 15 minutes to obtain a high casting starting speed, so that after the in-line rolling station, the pre-steel can reach a sufficient speed (Up to 60 m / mi η), and a rolling process that is "uninterrupted" China National Standard (CNS) A4 specification (210 X 297 public love) A7 B7 V. Description of invention (n) 〇 Finally, in order to limit the maximum temperature loss at low pressure (<60 bar) to 60 ° C, Descaler can be inserted, which houses a continuous nozzle equipped with a vibration mechanism so as to cover the entire surface. (Please read the precautions on the back before filling this page) IIIII I-*-r-5, I nnnl Intellectual Property Office, Ministry of Economic Affairs Employee consumption cooperation Du printed paper size applicable to China National Standard (CNS) A4 (210 X 297 mm)