'4386 3 4 A7 B7 1 " ' 1 ' " —— ’ _ _ II " 五、發明說明（1 ) 發明領域 本發明是關於製造高強度鋼條的方法及實施此方法的 裝置。 發明背景 在一眾所熟知的製造高強度鋼條的方法中，起始點是 以習知方式製成並在延伸台上接受兩階段冷卻的熱輥軋鋼 條。在第一階段’沃斯田鐵鋼條被冷卻直到其在沃斯田鐵 (austenite)與肥粒鐵（ferrite )的混合範圍內並維持在那 範圍內直到形成所需量的肥粒鐵。然後，鋼條是以高冷卻 率冷卻以便在鋼條中獲得麻田散鐵（martensite )的結構 。含有此性質的高強度鋼是以雙相鋼（Dual-Phase steel )爲名。 發明槪述 本發明的一個目的在於提供具有更大彈性的製造高強 度鋼的方法。本發明追求以達成的另一目的在於利用簡單 的設備可完成的方法。這些目的與其他的優點都是藉由用 以製造高強度的鋼條的方法予以完成’其中液態鋼是被鑄 造於至少一個設有一或更多條的連續鑄造機以形成鋼錠’ 應用鑄造熱以輸送通過熔爐設備’接受初期輥軋於初期輥 軋設備，以及在最後輕軋設備中接受精乱以形成具有所需 最後厚度的鋼條’而且在連續的無端或半無端處理中，鋼 錠在初期輥軋設備中實質上於沃斯田鐵（austenitic )的 ------^------- 浪·------J 訂---- -----_ {請先閱讀背面之泫意事項再填寫本頁) 本紙張又度適用中國國家標準（CNS)A4規格（210 χ 297公釐） -4 - 經濟部智慧財產局員L消費合泎：±1印奴 438634 A7 ___B7____ 五、發明說明（2 ) 範圍內接受初期輥軋|並在最後輥軋設備中輥軋於沃斯田 鐡範圍內，或者在最後輥軋設備的至少一條中輥軋於雙相 沃斯田鐵一肥粒鐵（two-phase austenitic-ferritic )的範 圍內，然後沃斯田鐵或沃斯田鐵-肥粒鐵的輥軋鋼條在離 開最後輥軋設備後被迅速冷卻以獲得所需的結構。 上述的方法是依據連續的無端或半無端處理。在此性 質的方法中，非常好的溫度控制是可能在鋼錠或鋼條兩者 的長度，寬度及厚度之上。再者，以時間的函數作爲溫度 的均勻性是非常好的。用完成此方法的裝置通常配置有 冷卻設備|使得以在配置中的位置的函數及/或時間的函 數作爲溫度的輪廓亦可迅速地控制及調整。可被引述的另 外優點是此方法是特別地適合於使用真空漏斗以便使鋼的 成分適應於將獲得的所需特性。 由於高層次的溫度均勻性，是非常可能以精確地預期 的方式輥軋於雙相沃斯田鐵-肥粒鐵的範圍內°在沃斯田 鐵-肥粒鐵的百分比中幾乎沒有或完全沒有差異發生於鋼 條_的橫截面及長度上》習知方法僅能順從於所需的溫度均 勻性的程度以便在某一限制的程度或經由特別的測量而獲 得均勻的特性。結果，以習知方式製成的高強度鋼條在其 橫截面及縱向上表現出不均勻性。 根據本發明的方法的一實施例的特徵在於，在最後的 輥軋設備中，鋼條輥軋於存在有所需的肥粒鐵量的溫度， 並且在於，離開最後的輥軋設備時的鋼條迅速地被冷卻至 开多成麻田散鐵（martensite)溫度範圍內Ms (開始麻田 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ------------' 1 展---- I--I ^ -----I---. (-請先閱讀背面之注意事項再填寫本頁) A7 4386 3 4 _B7__ 五、發明說明（3 ) ’ 散鐵）的溫度之下。 由於非常好程度的溫度均均性，是可能在最後的輥軋 設備中設定1保持所需的沃斯田鐵-肥粒鐵的比率。在離 開最後的輥備後，鋼條非常迅速地冷卻，此時沃斯田 鐵轉換成，，結果成爲高強度鋼條。 對於熟®此技藝者將是淸楚的，亦可能以如此的方式 完成此方法使得整個鋼條輥軋於沃斯田鐵的範圍內，並在 離開最後的輥軋設備後成爲沃斯田鐵鋼條。以此方式輥軋 的鋼條亦將在其橫截面與縱向上顯示出非當*高程度的溫度 均勻性。藉由兩階段冷卻用以製造雙相鋼的習知方法可有 利地製造出此性質的鋼條。 根據本發明的方法的另一實施例的特徵在於，在最後 的輥軋設備中，鋼條輥軋於存在有所需的肥粒鐵量的溫度 ，並且在於，離開最後的輥軋設備時的鋼條迅速地被冷卻 至形成變軔體（bain ite )溫度範圍內M s (開始麻田散鐵 )的溫度之上。在本發明的此實施例中，沃斯田鐵與肥粒 鐵之間的所需比率再次產生，並由於高程度的溫度均勻性 ，等量地分佈於鋼條上。冷卻率與冷卻溫度的選擇意指部 分的沃斯田鐵轉換成變軔體，在兩者之間保持著剩餘的沃 斯田鐵。鋼條在隨後製作產品時的變形中，沃斯田鐵產生 提供具有變形特性的高強度鋼條的差排。結果是具有高強 度與高延性的鋼條。由於這些特性，這些鋼等級亦被熟知 爲T R I Ρ鋼（相變誘發塑性鋼）。鋼條盤捲於變軔體的 範圍內。因此當製造此類型的鋼時，使用真空漏斗是特別- --- 丨丨 — — — — — — — 衣·---- - -- 訂- 0請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員Χ-消費合作社印製 本紙張尺度適用+國國家標準（CNS)A4規袼（210 X 297公釐） -6 - A7 438634 _______B7_____ 五、發明說明（4 ) 地有利，真空漏斗允許將適用的鋼的成分符合所需的特性 直到鋼條鑄造於連續鑄造機前的最後時刻。 爲了獲得不僅溫度均勻性還有變形的良好分佈遍及鋼 條的橫截面，根據本發明的方法的另一實施例的特徵在於 ，在初期輥軋設備的至少一機座上，最好是所有機座，及 /或在最後輕軋設備的至少一機座上，最好是每一機坐’ 完成潤滑輥軋。潤滑輥軋確定由輥子施加的減小厚度是均 匀地分佈遍及位於輥子之間的部分的鋼條或鋼錠。 本發明亦藉由製造鋼條的裝置予以具體化，此裝置特 別適合於實施根據本發明的方法，其包含至少一連續鑄造 機用以鑄造薄鋼錠，熔爐設備用以均勻化 已選擇性地接受初期尺寸減小的鋼錠，輥軋設備用以 將鋼錠輥軋成具有所需最後厚度的鋼條，及盤捲器設備用 以盤捲鋼條，其特徵在於具有至少2MW/m2的冷卻量的 冷卻設備安裝在輥軋設備的最後輥軋機座與盤捲器設備之 間。 *—·> ·· 本發明現將參考依據以下圖式的未限制實施例更詳細 地予以說明。 圖式簡單說明 圖1顯示可實施根據本發明的方法的裝置的簡要側面 圖； 圖2顯示此裝置中以位置的函數解說鋼的溫度輪廓的 曲線圖；及 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ^^1 ^^1 ^^1 ^^1 ^^1 ^^1 ^^1 ^^1 ^^1 ^^1 I I 1^1 ^^1 ^^1 ^^1 ^^1 I 1 請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員L消費合泎社印製 Λ7 43863 4 B7_ 五、發明說明（5 ) 圖3顯示此裝置中以位置的函數解說鋼的厚度輪廓的 曲線圖。 經濟部智慧財產局員31消費合作社印製 主 要元1 ί牛對照 1 連 續 鑄 造 機 2 澆 斗 3 漏 斗 4 鑄 模 6 前 切 三几 叹 備 7 隧 道 熔 爐 8 剪 切 設 備 9 氧 化 物 移 除 設 備 1 0 輥 軋 設 備 1 1 冷 卻 叹 備 1 2 盤 ΠΤΤ7 捲 箱 1 3 氧 化 物 移— 除 哎 備 1 4 輥 軋 S/L δ又 備 1 5 冷 卻 設 備 1 6 盤 捲 設 備 1 7 剪 切 設 備 1 8 熔 爐 設 備 實施例詳細說明 圖1中，參考數字1代表用以鑄造薄鋼錠的連續鑄造 — — — — — — — — — 111^f· 1 — — I 11 i - I— —II . (.tf先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -8- 438634 經濟部智慧財產局員1-消費合作钍印製 B7 五、發明說明（6 ) 機。在此前言中 > 此名稱被瞭解爲意指用以鑄造具有厚度 小於1 5 0 m m的薄鋼錠的連續鑄造機，最好是小於 1 0 Omm，更好是小於8 Omm。此連續鑄造機可包含 一或更多條。亦可能將數個連續鑄造機相互接鄰配置。這 些實施例都屬於本發明的領域內。參考數字2代表鑄造澆 斗，將鑄造的液態鋼自此澆斗饋入以真空漏斗形式的漏斗 3。此漏斗最好配置有如計量設備，混合設備及分析設備 等的設備用以將鋼的化學成分設定成所需的成分 > 因爲在 本發明中鋼的成分是非常重要的。在漏斗3下方，配置有 鑄模4，其中鑄造有液態鋼且至少部分已固化。需要的話 ，鑄模4可配置有電磁制動器。標準的連續鑄造機具有約 爲6m/miη的鑄造速度，另外的量測，如真空漏斗及 /或電磁制動器預期提供8m/m i η或更快的鑄造速度 。已固化的薄鋼錠被引入具有例如爲2 5 0 — 3 3 0m長 度的隧道熔爐7。當鑄造的鋼錠已到達熔爐7的末端時， 鋼錠在半無端處理中使用剪切設備6剪成鋼錠區段。半無 端處理被瞭解爲意指在至少最後的輥軋設備的連續輥軋處 理中，自單一鋼旋或鋼淀區段輥軋成數個具有標準盤捲尺 寸的盤捲，最好是二個，更好是超過五個。在無端輕軋處 理中，鋼錠或在初期輥軋設備後的鋼條是連接一起使得在 最後輥軋設備中可完成無端輥軋處理。在連續處理中，鋼 錠移動通過位在連續鑄造機與輥軋設備的出口側之間的路 徑而無中斷。在此是依據半無端處理來說明本發明，然而 很明顯地亦可使用於無端或連續處理。各鋼錠區段代表相 0請先閱讀背面之注意事項再填寫本頁) ^--------訂--------- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -9- Λ7 438634 B7____ 五、發明說明（7 ) 當於五至六個習知盤捲鋼的量。在熔爐中，有空間用來貯 存數個此性質的鋼錠區段，例如貯存三個。結果，位在熔 爐下游的部分設備可繼續操作•當正在更換連續鑄造機的 澆斗並開始鑄造新的鋼錠的同時，或當連續鑄造機有錯誤 並亦確定連續鑄造機可繼續操作若下游發生錯誤的同時。 而且，在熔爐設備中的貯存增加了鋼錠區段的停留時間， 因此改善了鋼錠區段的溫度均勻性。鋼錠進入熔爐設備的 速度相當於鑄造速度並大約爲0 . im/s e c。熔爐7 的下游，設有氧化物移除設備9，在此例中以具有約 4 0 0大氣壓的壓力的高壓噴水口的形式用以淸除形成在 鋼錠表面上的氧化物。鋼錠通過氧化物移除設備然後進入 輥軋設備1 0的速度約爲0 . 1 5m/s e c。完成初期 輥軋設備的功能的輥軋設備1 0包含兩個四輥式座，其最 好配置有輥子潤滑設備。若需要，可包括剪切設備8以應 付緊急狀況。如圖2所示，鋼錠離開漏斗的溫度大約爲 1450 °C，在輥軋設備中降至大約爲1 1 50 °C，而鋼 錠於那溫度在熔爐中均勻化。在氧化物移除設備9中密集 的噴水使鋼錠的溫度自約1 1 5 0t降至約1 0 5 0°C。 在初期輥軋設備1 0的兩個輥軋機座中，鋼錠的溫度每經 過一次輥軋下降約1 0 °C，使得鋼錠的原始厚度約爲7 0 mm並以約爲4 2 mm的暫時厚度經由兩個步驟形成爲具 有厚度約爲16 .8mm的鋼條|鋼錠的溫度約爲950 °C，亦即在沃斯田鐵的範圍內。圖3所示爲兩個狀況下以 位置的函數爲厚度的輪廓，一其中具有最後厚度約0 . 8 ------------- '表--------訂*--------. ·請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員1-消費合泎社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公笼） -10- 經濟部智慧財產局員I-消費合作钍印製 4 3 86 3 4 a? __B7_ 五、發明說明（8 ) m m的鋼條受輥軋，而另一其中具有最後厚度約1 . 〇 m m的鋼條受輥軋。數字代表單位爲m m的厚度。一冷卻 設備1 1 ，一組盤捲箱1 2及，若需要| 一附加的熔爐設 備（未顯示）容納在初期輥軋設備1 0的下游。自輥軋設 備1 0產生的鋼條可暫時地貯存並均勻化於盤捲箱1 2中 ，且若需要另外升高溫度，可加熱於位在盤捲箱下游的加 熱設備中（未顯示）。對於熟習此技藝者明顯的是|冷卻 設備1 1 ，盤捲箱1 2及未顯示的熔爐設備相對於上述的 設備可能在不同的位置。減小厚度的結果是|已輥軋的鋼 條以約0 . 6 m / s e c的速度進入盤捲箱。藉由冷卻設 備1 1 ，鋼條受冷卻直到進入雙相沃斯田鐵-肥粒鐵的爲 止=亦可能使鋼條不需要冷卻，或僅冷卻至某一程度，或 加熱，爲了在最後輥軋設備1 4的出口側上獲得沃斯田鐵 輥軋鋼條。此冷卻設備亦可容納在最後輥軋設備的輥軋座 之間。亦可能選擇性地使用自然的冷卻在輥軋座之間。具 有水壓約4 0 0大氣壓的第二氧化物移除設備％安裝在冷 卻設備1 1 ，盤捲箱1 2或熔爐設備（未顯示）的下游^ 其目的在於再次淸除形成在已輥軋的鋼條的表面上的氧化 層。若需要，可包含另一剪切設備以切尾。然 後|鋼條被引入輥軋串列，此輥軋串列可以是六個前後配 置並最好設有輥子潤滑設備的四輥式輥軋機座的形式。 當製造沃斯田鐵鋼條時|藉由僅使用五個輥軋機座即 可能達到在例如1 . 0與0 , 6 m m之間的所需最後厚度 。圖3中頂列的形狀顯示由各輥軋機座達到的鋼條厚度爲 ------------ '衣--------訂---------. (·請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公；¥ ) -11 - 4 3 86 3 4 A7 ____ B7 五、發明說明（9 ) ·請先閱讀背面之注意事項再填寫本頁) 7 0 m m。在離開輥軋串列1 4後，在約8 5 0 °C的最後 溫度下並具有0 6 m m的厚度的沃斯田鐵—肥粒鐵的輥 軋鋼條，經由冷卻設備1 5密集地冷卻並盤捲於盤捲設備 1 6上。鋼條進入盤捲的速度約在1 3到2 5m/s e c 之間。說明於ECSC最後報告7210-EA/214 中的冷卻設備可用作爲冷卻的目的。此報告的內容因此被 認爲併入本案。此冷卻設備的實質優點在於寬闊的控制範 圍，高度的單位面積的冷卻量，及冷卻的均勻性。 冷卻設備15是依據是否形成麻田散鐵或變軔體而調 整控制。這是可能以沃斯田鐵鋼條開始並以兩階段冷卻使 其冷卻 > 在此例中實施第一階段冷卻直到形成所需量的肥 粒鐵，接者實施快速的冷卻以形成麻田散鐵。亦可能使已 在雙相範圍內輥軋過的鋼條快速冷卻以彩成麻田散鐵（曲 線m )。亦可能使沃斯田鐵鋼條冷卻直到形成所需量的肥 粒鐵，然後繼續冷卻以便形成具有剩餘沃斯田鐵的變軔體 。再者，可能使鋼條輥軋於雙相範圍內，然後若需要，繼 續冷卻以便形成具有剩餘沃斯田鐵的變軔體（曲線b )。. 經濟部智慧財產局員工消費合作社印製 若適當的話，在氧化物移除設備1 3中’自鋼條上除 去氧化物。若離開輥軋串列1 4的溫度太低’可能藉由位 在輥軋串列下游的熔爐設備1 8使肥粒鐵輥軋鋼條提升至 所需的盤捲溫度。冷卻設備1 5與熔爐設備1 8可相互鄰 接或前後配置。亦可能以依據是否製造沃斯田鐵或'沃斯田 鐵-肥粒鐵的鋼條的其它設備來更換現有的設備°剪切設 備 本紙張尺度適用中國國家標準（CNS)A4規格（210x 297公釐） -12 - 43 86 3 4 A7 ______ B7 五、發明說明（1〇 ) 1 7被包括來剪切成符合標準盤捲尺寸的所需長度。藉由 適當地選擇此裝置的不同組件及此裝置實施的處理步驟， 諸如均勻化，輥軋，冷卻與暫時的貯存，已證明可使用單 一連續鑄造機來操作此裝置，然而在習知技術中使用兩個 連續鑄造機爲了使受限的鑄造速度符合於習用的更高的輥 軋速度。此裝置適合於具有1 0 0 0到1 5 0 Omm之間 的寬度及•在沃斯田鐵輥軋鋼條的例子中，約1 · 〇 m m 的厚度或，在肥粒鐵輥軋鋼條的例子中，約〇 . 5到◦. 6 mm的厚度之鋼條。在熔爐設備7中的均勻化時間約爲 十分鐘用以貯存相當於熔爐長度的三個鋼條。在沃斯田鐵 的輥乳例子中，盤捲箱是適合於貯存兩個完整的鋼條。 ------------^--------訂--------，線— -Γ請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員I-消費合作社印製 -13- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）'4386 3 4 A7 B7 1 "' 1 '" —— ′ _ _ II " V. Description of the invention (1) Field of the invention The present invention relates to a method for manufacturing a high-strength steel bar and a device for implementing the method. BACKGROUND OF THE INVENTION In a well-known method of manufacturing high-strength steel bars, the starting point is a hot-rolled steel bar that is conventionally made and subjected to two-stage cooling on an extension table. In the first stage, the 'Wastfield iron bar is cooled until it is within the mixing range of austenite and ferrite and is maintained within that range until the required amount of ferrous iron is formed. Then, the steel bar is cooled with a high cooling rate in order to obtain a martensite in the steel bar. The high-strength steel containing this property is called Dual-Phase steel. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a high-strength steel with greater flexibility. Another object which the present invention seeks to achieve lies in a method that can be accomplished with simple equipment. These objectives and other advantages are achieved by the method used to make high-strength steel bars 'where liquid steel is cast in at least one continuous casting machine with one or more bars to form steel ingots' Conveyed through the furnace equipment 'receives initial rolling in the initial rolling equipment, and in the final light rolling equipment undergoes intensive processing to form steel bars with the desired final thickness' and in continuous endless or semi-endless processing, the steel ingots are initially Rolling equipment is essentially austenitic -------- ^ ------- waves · ------ J order ---- -----_ { Please read the notice on the back before filling in this page) This paper is again applicable to China National Standard (CNS) A4 (210 χ 297 mm) -4-Member of the Intellectual Property Bureau of the Ministry of Economic Affairs L Consumption: ± 1 Indian slave 438634 A7 ___B7____ V. Description of the invention (2) Accept initial rolling | and rolling in the final rolling equipment within the range of Vossfield, or in at least one of the final rolling equipment in dual-phase rolling Within the range of two-phase austenitic-ferritic iron, and then The rolled steel bars of Vosstian Iron or Vosstian Iron-Fat Iron are quickly cooled after leaving the final rolling equipment to obtain the desired structure. The above method is based on continuous endless or semi-endless processing. In this method, very good temperature control is possible over the length, width, and thickness of both the ingot or bar. Furthermore, the uniformity of temperature as a function of time is very good. Devices that perform this method are usually equipped with cooling equipment so that the temperature profile can be quickly controlled and adjusted as a function of position and / or time as a function of configuration. Another advantage that can be cited is that this method is particularly suitable for using a vacuum funnel in order to adapt the composition of the steel to the desired properties to be obtained. Due to the high level of temperature uniformity, it is very likely to be rolled in the range of dual-phase Vosstian iron-ferrous iron in a precisely expected manner. No difference occurs in the cross-section and length of the steel bar. The conventional method can only comply with the required degree of temperature uniformity in order to obtain uniform characteristics to a certain limited degree or through special measurements. As a result, a conventionally produced high-strength steel bar exhibits unevenness in its cross section and longitudinal direction. An embodiment of the method according to the invention is characterized in that the steel bar is rolled at a temperature where the required amount of ferrous iron is present in the final rolling equipment, and that the steel when leaving the final rolling equipment The strip is quickly cooled to within the temperature range of Kadosen Asa Martensite (starting Asa Paper size of this paper applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) --------- --- '1 Exhibition ---- I--I ^ ----- I ---. (-Please read the notes on the back before filling out this page) A7 4386 3 4 _B7__ V. Description of the invention (3 ) 'Temperature. Due to a very good degree of temperature homogeneity, it is possible to set 1 in the final rolling equipment to maintain the required Wastfield iron-ferrous iron ratio. After leaving the last roll preparation, the steel bar was cooled very quickly, at which time the Wastfield iron was converted into a high-strength steel bar. It will be astute for the skilled artist, and it is also possible to complete this method in such a way that the entire steel bar is rolled within the range of Vosstian Iron and becomes Vosstian Iron steel bar after leaving the last rolling equipment . Steel bars rolled in this way will also show an unacceptably high degree of temperature uniformity in their cross-section and longitudinal direction. A conventional method for manufacturing dual-phase steel by two-stage cooling can advantageously produce steel bars of this nature. Another embodiment of the method according to the invention is characterized in that, in the final rolling equipment, the steel bar is rolled at a temperature where the required amount of ferrous iron is present, and that when leaving the final rolling equipment, The steel bar is quickly cooled to a temperature above the M s (starting of Asada loose iron) within the temperature range of the bainite formation. In this embodiment of the invention, the required ratio between Vosstian iron and ferrous iron is produced again and is distributed equally on the steel bars due to a high degree of temperature uniformity. The selection of the cooling rate and the cooling temperature means that a part of the Vosstian iron is converted into a metamorphic body, and the remaining Vosstian iron is maintained between the two. In the deformation of the steel bar during the subsequent production of the product, Vostian Iron produces a differential row that provides high-strength steel bars with deformation characteristics. The result is a steel bar with high strength and ductility. Because of these characteristics, these steel grades are also known as TRIP steels (transition-induced plastic steels). The steel rod is coiled within the range of the metamorphosis. Therefore, when manufacturing this type of steel, the use of a vacuum funnel is special ----- 丨 丨-— — — — — — — ·---order-0 Please read the precautions on the back before filling this page ) Member of the Intellectual Property Bureau of the Ministry of Economic Affairs, X-Consumer Cooperative, printed paper size applicable + National Standards (CNS) A4 (210 X 297 mm) -6-A7 438634 _______B7_____ 5. Description of the invention (4) Advantageous location, vacuum The funnel allows the composition of the applicable steel to meet the required characteristics until the last moment before the steel bar is cast in a continuous casting machine. In order to obtain not only temperature uniformity but also a good distribution of the deformation across the cross section of the steel bar, another embodiment of the method according to the invention is characterized in that on at least one stand of the initial rolling equipment, preferably all machines And / or on at least one stand of the last light rolling equipment, preferably each stand 'to complete the lubricating roll. Lubrication rolling determines that the reduced thickness applied by the rolls is a steel bar or ingot distributed evenly throughout the portion between the rolls. The invention is also embodied by a device for manufacturing steel bars, which is particularly suitable for carrying out the method according to the invention, which comprises at least one continuous casting machine for casting thin steel ingots, and furnace equipment for homogenizing selectively accepted Steel ingots with reduced initial size, rolling equipment for rolling steel ingots into steel bars with the required final thickness, and coiler equipment for coiling steel bars, are characterized by having a cooling capacity of at least 2MW / m2. The cooling equipment is installed between the last rolling stand of the rolling equipment and the coiler equipment. *-≫ The present invention will now be explained in more detail with reference to an unrestricted embodiment according to the following drawings. Brief Description of the Drawings Figure 1 shows a schematic side view of a device in which the method according to the invention can be implemented; Figure 2 shows a graph illustrating the temperature profile of steel as a function of position in this device; and this paper size applies Chinese National Standard (CNS ) A4 size (210 X 297 mm) ^^ 1 ^^ 1 ^^ 1 ^^ 1 ^^ 1 ^^ 1 ^^ 1 ^^ 1 ^^ 1 ^^ 1 II 1 ^ 1 ^^ 1 ^^ 1 ^^ 1 ^^ 1 I 1 Please read the notes on the back before filling out this page) Printed by L Consumer Cooperative, Member of Intellectual Property Bureau, Ministry of Economic Affairs Λ7 43863 4 B7_ 5. Description of the invention (5) Figure 3 shows A plot of the thickness profile of the steel as a function of position. Member of the Intellectual Property Bureau of the Ministry of Economic Affairs 31 Consumer Cooperatives Printed the main yuan 1 ίNiu Contrast 1 Continuous Casting Machine 2 Funnel 3 Funnel 4 Mold 6 Die Cutting Front 7 Tunnel Furnace 8 Shearing Equipment 9 Oxide Removal Equipment 1 0 Roller Rolling equipment 1 1 Cooling equipment 1 2 reels ΠΤΤ7 reels 1 3 Oxide removal—except for equipment 1 4 rolling S / L δ and equipment 1 5 cooling equipment 1 6 coiling equipment 1 7 cutting equipment 1 8 furnace equipment Detailed description of the embodiment In FIG. 1, reference numeral 1 represents continuous casting for casting thin steel ingots — — — — — — — — — 111 ^ f · 1 — — I 11 i-I— —II. (.Tf read first Note on the back, please fill in this page again) This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) -8- 438634 Member of Intellectual Property Bureau of the Ministry of Economic Affairs 1-Consumer cooperation printed B7 V. Description of invention ( 6) machine. In the Foreword > This name is understood to mean a continuous casting machine for casting thin steel ingots having a thickness of less than 150 mm, preferably less than 10 Omm, more preferably less than 8 Omm. This continuous casting machine may contain one or more bars. It is also possible to arrange several continuous casting machines next to each other. These embodiments belong to the field of the invention. Reference numeral 2 denotes a casting hopper, from which the cast liquid steel is fed into the hopper 3 in the form of a vacuum hopper. This funnel is preferably equipped with equipment such as metering equipment, mixing equipment, and analysis equipment to set the chemical composition of the steel to the desired composition > because the composition of the steel is very important in the present invention. Below the funnel 3, a mold 4 is arranged, in which liquid steel is cast and at least partially solidified. If necessary, the mold 4 can be equipped with an electromagnetic brake. A standard continuous casting machine has a casting speed of about 6 m / miη, and additional measurements, such as a vacuum funnel and / or an electromagnetic brake, are expected to provide a casting speed of 8 m / m i η or faster. The solidified thin steel ingot is introduced into a tunnel furnace 7 having a length of, for example, 250-330 m. When the cast steel ingot has reached the end of the furnace 7, the steel ingot is cut into steel ingot sections using a shearing device 6 in a semi-endless process. Semi-endless processing is understood to mean that in a continuous rolling process of at least the last rolling equipment, rolling from a single steel spin or steel deposit section into several coils having a standard coil size, preferably two, Better is more than five. In the endless light rolling process, the ingots or bars after the initial rolling equipment are connected together so that the endless rolling processing can be completed in the final rolling equipment. In continuous processing, the ingot moves through the path between the continuous casting machine and the exit side of the rolling equipment without interruption. The present invention is explained here based on semi-endless processing, but it is obvious that it can also be applied to endless or continuous processing. Representative phase 0 of each steel ingot section, please read the precautions on the back before filling this page) ^ -------- Order --------- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -9- Λ7 438634 B7____ V. Description of the invention (7) The amount of coiled steel used in five to six conventional coils. In the furnace, there is space for storing several ingot sections of this nature, such as three. As a result, some equipment located downstream of the furnace can continue to operate while the continuous casting machine's hopper is being replaced and new steel ingots are being cast, or when the continuous casting machine has errors and it is also determined that the continuous casting machine can continue to operate if downstream occurs Wrong at the same time. Moreover, storage in the furnace equipment increases the residence time of the steel ingot section, thus improving the temperature uniformity of the steel ingot section. The speed at which the ingot enters the furnace equipment is equivalent to the casting speed and is approximately 0. im / s e c. Downstream of the furnace 7, an oxide removing device 9 is provided, which in this example is used to remove oxides formed on the surface of the steel in the form of a high-pressure water jet having a pressure of about 400 atmospheres. The ingot passed through the oxide removal equipment and then entered the rolling equipment at a speed of about 0.15 m / s e c. The rolling equipment 10, which performs the functions of the initial rolling equipment, includes two four-roller seats, which are preferably equipped with roller lubrication equipment. If required, a shearing device 8 may be included to respond to an emergency. As shown in Fig. 2, the temperature at which the steel ingot leaves the funnel is approximately 1450 ° C, is reduced to approximately 1 150 ° C in the rolling equipment, and the steel ingot is homogenized in the furnace at that temperature. The intensive water spray in the oxide removal apparatus 9 lowered the temperature of the steel ingot from about 115 ° to about 105 ° C. In the two rolling stands of the initial rolling equipment 10, the temperature of the steel ingot decreases by about 10 ° C after each rolling, so that the original thickness of the steel ingot is about 70 mm and the temporary thickness is about 4 2 mm. Formed in two steps into a steel bar with a thickness of approximately 16.8 mm | The temperature of the steel ingot is approximately 950 ° C, which is within the range of Vostian Iron. Figure 3 shows the thickness profile as a function of position under two conditions, one of which has a final thickness of about 0.8 ------------- '表 -------- Order * --------. · Please read the notes on the back before filling out this page) Member of Intellectual Property Bureau, Ministry of Economic Affairs 1-Printed by Consumer Union, this paper applies Chinese National Standard (CNS) A4 specifications ( 210 X 297 male cage) -10- Printed by I-Consumer Cooperative Member of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 3 86 3 4 a? __B7_ V. Description of the invention (8) mm steel bar is rolled, and the other one has the final A steel bar having a thickness of about 1.0 mm is rolled. Numbers represent thickness in m m. A cooling facility 11, a set of coil boxes 12 and, if necessary | an additional furnace facility (not shown) is housed downstream of the initial rolling facility 10. The steel bar produced from the rolling equipment 10 can be temporarily stored and homogenized in the coil box 12, and if additional temperature is required, it can be heated in a heating device located downstream of the coil box (not shown) . For those skilled in the art, it is obvious that the cooling equipment 1 1, the coil box 12 and the furnace equipment not shown may be in different positions relative to the above equipment. As a result of the reduced thickness, the rolled steel bar enters the coil box at a speed of about 0.6 m / sec. With the cooling device 1 1, the steel bar is cooled until it enters the dual-phase Vostian iron-fertilized iron = It is also possible that the steel bar does not need to be cooled, or only cooled to a certain degree, or heated, in order to On the exit side of the rolling equipment 14 a Vosstian iron roll rolled steel bar is obtained. This cooling equipment can also be accommodated between the rolling stands of the final rolling equipment. It is also possible to selectively use natural cooling between the rolling stands. The second oxide removal equipment with a water pressure of about 400 atmospheres is installed downstream of the cooling equipment 1 1, the coil box 12 or the furnace equipment (not shown) ^ The purpose is to eliminate the formation in the rolled Oxide layer on the surface of a steel bar. If necessary, another cutting device can be included to cut the tail. The steel bars are then introduced into a rolling train, which can be in the form of six four-roller rolling mill stands arranged back and forth and preferably provided with roller lubrication equipment. When manufacturing a Wastfield iron bar | by using only five rolling stands it is possible to achieve the required final thickness between, for example, 1.0 and 0, 6 mm. The shape of the top row in Figure 3 shows that the thickness of the steel bar reached by each rolling stand is ------------ 'clothing -------- order -------- -. (Please read the notes on the back before filling out this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297); ¥ -11-4 3 86 3 4 A7 ____ B7 V. Invention Instructions (9) · Please read the notes on the back before filling in this page) 70 mm. After leaving the rolling train 14, at the final temperature of about 8 50 ° C and at a final temperature of 0 6 mm, a rolled steel bar of Vostian iron-fertile iron is densely cooled via a cooling device 15 Coiled on the coiling device 16. The speed at which the steel bar enters the coil is between approximately 13 and 25 m / s e c. The cooling equipment described in ECSC final report 7210-EA / 214 can be used for cooling purposes. The content of this report was therefore considered to be incorporated into the case. The essential advantages of this cooling device are the wide control range, the height of the cooling unit per unit area, and the uniformity of cooling. The cooling device 15 is adjusted and controlled depending on whether or not Asada loose iron is formed or a carcass is formed. It is possible to start with a Vostian iron steel bar and cool it with two-stage cooling > In this example, the first stage cooling is performed until the required amount of ferrous iron is formed, and then rapid cooling is performed to form Asada loose iron. It is also possible to rapidly cool the rolled steel bars in the dual-phase range to color Asada loose iron (curve m). It is also possible to cool the Vosstian iron bar until the required amount of ferrous iron is formed, and then continue to cool to form a metamorphic carcass with the remaining Vosstian iron. Furthermore, it is possible to roll the steel bar in a two-phase range and then, if necessary, continue to cool it to form a metamorphic body with the remaining Vosstian iron (curve b). Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, if appropriate, to remove oxides from the steel bars in the oxide removal equipment 13. If the temperature leaving the rolling train 14 is too low 'it is possible to raise the ferrous-iron rolled steel bar to the required coil temperature by the furnace equipment 18 located downstream of the rolling train. The cooling equipment 15 and the furnace equipment 18 may be arranged adjacent to each other or in front and back. It is also possible to replace the existing equipment with other equipment depending on whether or not Vostian Iron or 'Vostian Iron-Ferrous Iron Bar' is manufactured. Shearing equipment This paper size applies Chinese National Standard (CNS) A4 (210x 297 (Mm) -12-43 86 3 4 A7 ______ B7 V. Description of the invention (1〇) 1 7 is included to cut to the required length in accordance with the standard coil size. By properly selecting the different components of the device and the processing steps implemented by the device, such as homogenization, rolling, cooling, and temporary storage, it has been proven that the device can be operated using a single continuous casting machine, however in the conventional art Two continuous casting machines were used in order to adapt the limited casting speed to the higher rolling speeds that are customary. This device is suitable for having a width between 1 000 and 15 0 mm and in the example of a rolled steel bar in Vostian, a thickness of about 1.0 mm or in the example of rolled steel bar in a fat iron roll Medium, steel bars with a thickness of about 0.5 to 6 mm. The homogenization time in the furnace apparatus 7 is about ten minutes for storing three steel bars corresponding to the length of the furnace. In the example of Rolls-Royce milk rolls, the coil box is suitable for storing two complete steel bars. ------------ ^ -------- Order --------, line — -Γ Please read the notes on the back before filling in this page) Ministry of Economic Affairs Wisdom Printed by I-Consumer Cooperative Member-13- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)