TW202325430A - Plant and process for the continuous production of hot-rolled ultra-thin steel strips - Google Patents

Abstract

Plant and process for the continuous production of hot-rolled steel strips with a minimum thickness of 0,3 mm, comprising a continuous casting device (1) of thin or medium slabs with a thickness between 40 and 150 mm and a maximum width of at least 2100 mm followed by a roughing mill (2), a first induction furnace, a water descaler, a second induction furnace, a finishing mill, a cooling station, a cutting station and a winding station, a system for feeding a protective atmosphere containing ≤3% vol. of oxygen being provided at least from the inlet of the second induction furnace to the third stand of the finishing mill, and further comprising, between the continuous casting device (1) and the roughing mill (2), an initial thermal conditioning and descaling section (4) comprising in sequence an induction edge heater (4.1), an induction heater (4.2) for the rest of the slab surface and a water descaler (5).

Description

用於連續生產熱軋超薄鋼帶之設備和方法Equipment and method for continuous production of hot-rolled ultra-thin steel strip

本發明有關用於連續生產厚度低達0.3毫米且限制生鏽量之熱軋超薄鋼帶的設備和方法，如此以使它們適合直接塗佈來抵抗腐蝕而不經歷特定的初步表面調節處理。The present invention relates to equipment and methods for the continuous production of hot-rolled ultra-thin steel strips with a thickness as low as 0.3 mm and with a limited amount of rusting, such that they are suitable for direct coating to resist corrosion without undergoing specific preliminary surface conditioning treatments.

熟知的是於鋼鐵工業，鑒於所用原料和能量的成本增加及全球市場所需的競爭力增加，還有就污染而言的限制法規增加，而對高品質熱軋鋼帶的製法有特殊的需求，其須降低投資和生產成本，導致有更薄的鋼帶厚度。結果，最終產品處理工業也可以有較低能耗而變得更有競爭力，如此亦使對環境的負面衝擊最小化。It is well known that in the iron and steel industry there is a special need for a process for the production of high-quality hot-rolled steel strip, in view of the increased costs of the raw materials and energy used and the increased competitiveness required in the global market, as well as the increased restrictive regulations in terms of pollution, It must reduce investment and production costs, resulting in thinner strip thicknesses. As a result, the end product handling industry can also become more competitive with lower energy consumption, thus minimizing the negative impact on the environment.

技術現況基本上如相同發明人的先前專利所述，例如歐洲專利第1558408、1868748、1909979號，其有進一步細節供參考。實務上，使用基於「鑄造輥軋」(cast rolling)之所謂的無端鋼帶生產(endless strip production，ESP)科技，其組合了薄板塊的連續鑄造和液態核心減低(liquid core reduction，LCR)，而具有經過粗軋機(高減低軋機[high reduction mill，HRM])的第一粗軋階段來生產中間產品，即所謂的「轉移棒」(transfer bar)。鑄造是從基於歐洲專利第0946316、1011896、3154726號的鑄錠模系統來進行，該等專利也是由相同發明人所做而有進一步細節供參考，其有關鑄錠模之水平和垂直截面二者的幾何輪廓，以及有關設計用於每分鐘高達7~8公噸的高質流材料之噴嘴的特殊幾何型態。The state of the art is essentially as described in previous patents by the same inventor, eg European Patent Nos. 1558408, 1868748, 1909979, to which reference is made for further details. In practice, using the so-called endless strip production (ESP) technology based on "cast rolling", which combines continuous casting of thin slabs and liquid core reduction (LCR), And there is a rough rolling mill (high reduction mill [high reduction mill, HRM]) in the first rough rolling stage to produce the intermediate product, which is the so-called "transfer bar". Casting is carried out from an ingot mold system based on European patents Nos. 0946316, 1011896, 3154726, also by the same inventor and referenced for further details, both in horizontal and vertical sections of the ingot mold The geometric profile, and the special geometry of nozzles designed for high-quality flow materials up to 7-8 metric tons per minute.

上面提及的歐洲專利第1558408號也設想到萬一設備在粗軋機下游的部分有問題則可能在第一粗軋階段之後抽取粗糙片來作為緊急系統，以避免連續鑄造和因此產線的中斷，但不是為了計畫性生產鋼片，而這是假設該設備的第一部分沒有生產高品質鋼片所需之受控的冷卻系統。The above-mentioned European Patent No. 1558408 also envisages the possibility of extracting rough flakes after the first roughing stage as an emergency system in case of problems in the part of the equipment downstream of the roughing mill, to avoid continuous casting and thus interruption of the production line , but not for programmatic sheet production, and this assumes that the first part of the plant does not have the controlled cooling system required to produce high-quality sheet.

在感應爐中加熱和後續除鏽的階段之後，轉移棒在第二階段的精軋中進一步處理以將它轉變成鋼帶，此時控制其溫度使得它在精軋機的出口仍具有在近似820~850℃以上的溫度，其對應於多數鋼之沃斯田鐵溫度範圍的下限。After the stage of heating and subsequent descaling in the induction furnace, the transfer rod is further processed in the second stage of finishing rolling to convert it into steel strip, at which time its temperature is controlled so that it still has a temperature of approximately 820 °C at the exit of the finishing mill. Temperatures above ~850°C correspond to the lower end of the temperature range for most steels.

然而，雖然就鋼帶品質而言是最佳化，迄今結果已證明就設備緊湊性、節能、目前最小鋼帶厚度值0.6毫米而言仍可做改善。附帶而言，轉移棒透過在粗軋和精軋階段之間做前述的感應式加熱，雖然由於材料在該溫度有最小停留時間而達成減少鋼帶表面上所形成的氧化物(鏽)，但此減少的生鏽尚未證明足以在施加抗腐蝕塗佈之前就免去酸洗階段。However, although optimized in terms of strip quality, results so far have shown that improvements can still be made in terms of plant compactness, energy saving, and the current minimum strip thickness value of 0.6 mm. Incidentally, the transfer bars are heated by the aforementioned induction between the roughing and finishing stages, although a reduction in the formation of oxides (rust) on the surface of the strip is achieved due to the minimum residence time of the material at this temperature, but This reduced rusting has not proven sufficient to eliminate the pickling stage before the anti-corrosion coating is applied.

為了確保以較大生產彈性而在沃斯田鐵領域有所要的最終輥軋並且進一步減少生鏽，上述類型的設備是從美國專利第9108234號而己知，其也包括在除鏽器和精軋機之間的第二感應爐，該第二爐中的加熱是在避免轉移棒氧化的保護性氣氛中發生，該氣氛實質上由惰性氣體(氮)所組成而存在最小量的氧(約5%或更小)。在最終輥軋前於保護性氣氛中做感應式加熱的其他範例則見於美國專利第8479550號(然而其在除鏽器之後僅設有一個感應爐)、美國專利公開案第2012/043049號(其也提供使用氫的還原性氣氛但無粗軋)、德國專利第19936010號(然而其在除鏽器之後不包括感應爐，並且針對保護性氣氛則教導使用設備本身所產生的燃燒氣體來取代惰性氣體以減少成本，此氣體也能夠分布於設備在感應爐之前和之後的多樣部分，譬如感應式邊緣加熱器、除鏽器、精軋機、出口輥運送機、捲繞器)。In order to ensure the desired final rolling in the field of Voss fields with greater production flexibility and to further reduce rusting, equipment of the above-mentioned type is known from U.S. Patent No. 9,108,234, which also includes rust removers and finishing A second induction furnace between the rolling mills, in which the heating takes place in a protective atmosphere to avoid oxidation of the transfer rods, the atmosphere consists essentially of an inert gas (nitrogen) with a minimum amount of oxygen (approximately 5 % or less). Other examples of induction heating in a protective atmosphere prior to final rolling are found in U.S. Patent No. 8,479,550 (which however has only one induction furnace after the descaler), U.S. Patent Publication No. 2012/043049 ( It also provides a reducing atmosphere using hydrogen but without roughing), German Patent No. 19936010 (which however does not include an induction furnace after the descaler and for a protective atmosphere teaches the use of combustion gases generated by the plant itself instead Inert gas to reduce costs, this gas can also be distributed in various parts of the equipment before and after the induction furnace, such as induction edge heaters, descalers, finishing mills, exit roll conveyors, winders).

然而，此等先前技術文件都未設想獲得厚度在目前0.6毫米極限以下的鋼帶，也未考慮當到此極限以下時所引起的特殊問題。事實上，此等文件所述的設備都不適合此目的，因為有以下的衝突要求：在精軋機入口維持轉移棒的高溫以確保此種薄鋼帶做完全沃斯田鐵輥軋且因而受到較大冷卻；並且就時間和溫度二者而言儘管有強加熱，仍須限制生鏽。However, none of these prior technical documents envisages obtaining strip thicknesses below the current limit of 0.6 mm, nor does it take into account the particular problems that arise when going below this limit. In fact, none of the equipment described in these documents is suitable for this purpose because of the conflicting requirements of maintaining a high temperature of the transfer bar at the entrance of the finishing mill to ensure that such a thin strip is fully worsten-iron rolled and thus subject to greater stress. Great cooling; and rusting must be limited despite intense heating both in terms of time and temperature.

本發明的目的因而是提供連續生產厚度低達0.3毫米且最大寬度至少2100毫米(或不論鑄錠模的最大寬度為何)之熱軋鋼帶的解決方案，其始於鑄造出厚度在40和150毫米之間的板塊而不通過用於酸洗、冷軋和退火的中間設備，並且限制其生鏽量，使得此等鋼帶適合直接塗佈來抵抗腐蝕(尤其在電鍍線中)而不經歷特定的初步表面調節處理(尤其是酸洗線)。The object of the present invention is thus to provide a solution for the continuous production of hot-rolled steel strip with a thickness down to 0.3 mm and a maximum width of at least 2100 mm (or whatever the maximum width of the ingot mould), starting from castings with thicknesses between 40 and 150 mm without passing through intermediate equipment for pickling, cold rolling and annealing, and to limit the amount of rusting, making these strips suitable for direct coating to resist corrosion (especially in plating lines) without undergoing specific Preliminary surface conditioning treatment (especially pickling line).

此結果是使用連續(所謂無端的)生產科技而獲得，其使生產時間和消耗最小化且因而減少生產成本，尤其採取以下措施以控制材料的溫度和限制其減低而同時避免材料表面過度氧化： (a)為了在進入粗軋機(HRM)之前清潔板塊的鏽，並且為了允許在連續鑄造(鑄造機)的出口有最小三道到高達最大五道的多道粗軋，設有初始熱調節和除鏽區，其在板塊的前進方向上依序包含感應式邊緣加熱器、用於板塊其餘表面的感應式加熱器、水除鏽器； (b)為了避免來自除鏽器之水和蒸氣的噴射損傷表面加熱器的感應線圈，除鏽器設在入口而具有可橫向移動的擋門，其直接停靠在板塊的邊緣上，同時由小驅動站台(所謂的夾輥)來關閉板塊的上和下表面，該夾輥放置成相鄰於該擋門而在除鏽器面向表面加熱器的入口側； (c)假設板塊在鑄造機的出口為低速(低於每分鐘10公尺)，為了使板塊從鑄造機通往粗軋機之入口所花的時間最少化以便使生鏽和溫降最小化，該初始區必須盡可能的緊湊，使得該邊緣加熱器、表面加熱器、除鏽器(其包括夾輥和篩選擋門)佔據的空間長度在3~5公尺等級； (d)邊緣加熱器配備有操持系統，其允許加熱系統的效率隨著板塊寬度變化而保持恆定、設定待加熱之邊緣區域的最佳化寬度、萬一由於粗軋機中的卵石而使板塊上有「波浪」(wave)則移除∕舉升感應線圈； (e)邊緣加熱器能夠對板塊的左和右邊緣做不同的加熱以確保進入粗軋機的板塊有最佳化且均勻的輪廓，即使鑄造機出來的板塊在二邊緣之間呈現溫度不均勻亦然； (f)除鏽器設計成具有冷卻水噴嘴的直徑和遞送壓力，使得當除鏽器作用和當它不作用時之間而在除鏽器之出口的溫降限制為小於10℃。 This result is obtained using continuous (so-called gratuitous) production techniques, which minimize production time and consumption and thus reduce production costs, in particular by taking the following measures to control the temperature of the material and limit its reduction while avoiding excessive oxidation of the surface of the material: (a) To clean the slabs of rust before entering the roughing mill (HRM) and to allow a minimum of three to a maximum of five multi-pass roughing at the exit of the continuous casting (caster) with initial thermal conditioning and descaling zone, which sequentially includes an induction edge heater, an induction heater for the rest of the surface of the slab, a water descaler in the forward direction of the slab; (b) In order to avoid damage to the induction coils of the surface heaters by jets of water and steam from the descaler, the descaler is provided at the entrance with a laterally movable damper which rests directly on the edge of the slab while being controlled by a small Closing the upper and lower surfaces of the slabs by driving stations (so-called pinch rollers) placed adjacent to the gate on the inlet side of the descaler facing the surface heater; (c) Assuming a low velocity of the slabs at the exit of the casting machine (less than 10 meters per minute), in order to minimize the time it takes for the slabs to pass from the casting machine to the entrance of the roughing mill in order to minimize rusting and temperature drop, The initial zone must be as compact as possible so that the space occupied by the edge heaters, surface heaters, descaling (which includes nip rollers and screen gates) is on the order of 3 to 5 meters in length; (d) The edge heaters are equipped with a management system that allows the efficiency of the heating system to be kept constant as the width of the slab varies, setting the optimum width of the edge area to be heated, in case the slab is placed on the slab due to pebbles in the roughing mill If there is a "wave" (wave), remove/lift the induction coil; (e) Edge heaters can heat the left and right edges of the slab differently to ensure an optimal and uniform profile of the slab entering the roughing mill, even if the slab exiting the caster exhibits uneven temperatures between the two edges However; (f) The descaler is designed with a cooling water nozzle diameter and delivery pressure such that the temperature drop at the outlet of the descaler between when the descaler is active and when it is not active is limited to less than 10°C.

較佳採用於本發明以改善本設備和方法的其他有利配置為： (g)建造第二水除鏽器，其位在精軋機之前的二感應爐之間，而結構類似於上面提及的第一除鏽器且在入口和出口都包括夾輥，如此以保護該二感應爐免於水和蒸氣噴射； (h)將用於進給保護性氣氛於精軋機中的噴嘴安裝在輥軋站台之間配置的所謂「圈繞器」(looper)的可移動結構上，亦即配備有鋼帶張力感應器的輥，其可以垂直移動且允許材料在站台之間配置有適合的迴圈，其配置的方式使得速度控制系統變化站台的相對作用速度，如此以在鋼帶上維持恆定的張力； (i)提供機械碎鏽裝置，其恰坐落在第二水除鏽器之前而由至少三個輥所構成，其交替地配置在轉移棒的進給線之上和之下且高度足以引起其表面的塑性延展，這造成鏽的剛性層破裂且便於在後續水除鏽器中移除； (j)為了允許有用於捲繞超薄鋼帶的高溫(高達750℃)且在任一情形下高於相變化點，在靠近最後輥軋站台也提供了捲繞盤捲器，其在出口輥運送機的表面之上(「上盤捲器」[up-coiler])或之下(「下盤捲器」[down-coiler])，並且前面有短冷卻線和高速剪機(附加於傳統設在正常冷卻線和相對剪機之後的類似的最終盤捲器)； (k)提供第一和第二機械除鏽器，其分別位在封閉式盤捲器和最終盤捲器的冷卻線和剪機之間，而使用對轉研磨刷或研磨性泥漿噴射； (l)直接在最終盤捲器之後提供腐蝕保護塗佈線，如此則有可能施加該塗佈而鋼帶不必事先捲繞至盤捲器上以形成圈捲； (m)提供冷卻水槽，從盤捲器所移除的圈捲可以浸沒於水或稍微氧化性水溶液中。 Other advantageous configurations which are preferably employed in the present invention to improve the device and method are: (g) Construction of a second water descaler, located between the two induction furnaces before the finishing mill, similar in structure to the first descaler mentioned above and including nip rolls at both the inlet and outlet, so as to protect The two induction furnaces are free from water and steam injection; (h) The nozzles for feeding the protective atmosphere in the finishing mill are mounted on movable structures called "loopers" arranged between the rolling stations, ie equipped with strip tension sensors rollers, which can move vertically and allow the material to be arranged with suitable loops between the stations, arranged in such a way that the speed control system varies the relative acting speeds of the stations, thus maintaining a constant tension on the steel belt; (i) provide a mechanical descaling device, which is located just before the second water descaler and consists of at least three rollers, which are arranged alternately above and below the feed line of the transfer bar and are of a height sufficient to cause its Plastic extension of the surface, which breaks the rigid layer of rust and facilitates its removal in subsequent water descalers; (j) To allow for high temperatures (up to 750°C) for winding ultra-thin strip and in either case above the phase change point, winding coilers are also provided near the final rolling above ("up-coiler") or below ("down-coiler") the surface of the conveyor with short cooling lines and high-speed shears in front (additional to traditional similar final coilers located after the normal cooling line and relative shears); (k) providing first and second mechanical descalers located between the cooling lines and shears of the closed coiler and the final coiler, respectively, using counter-rotating abrasive brushes or abrasive slurry jets; (l) providing a corrosion protection coating line directly after the final coiler, so that it is possible to apply the coating without the strip having to be previously wound onto the coiler to form a coil; (m) Provide a cooling water tank in which the coils removed from the coiler can be submerged in water or a slightly oxidizing aqueous solution.

參見圖1a~1c，看到的是根據本發明的設備，傳統上包含用於連續鑄造厚度40~150毫米之薄或中等板塊的鑄造機1，後面接著是粗軋機(HRM) 2，其於所示範例是由四個站台2.1~2.4所形成但也或可為三或五個站台，而將板塊轉變成厚度≤8毫米的轉移棒。實驗測試已顯示在第一粗軋站台2.1中限制厚度減低(≤20%)可以如何允許表面應力含括在將板塊構成鑄件之粗沃斯田鐵的強度限制裡。以此方式，則在第一粗軋步驟中表面之幾乎靜態的再結晶(尤其是對於存在微合金化的鋼)可以允許無缺陷或龜裂地進行獲得適合生產超薄鋼帶的轉移棒所需之後續的厚度顯著減低。Referring to Figures 1a-1c, there is seen an apparatus according to the invention, traditionally comprising a casting machine 1 for continuous casting of thin or medium slabs of thickness 40-150 mm, followed by a roughing mill (HRM) 2, which at The example shown is formed by four platforms 2.1-2.4 but could also be three or five platforms to transform the plates into transfer rods with a thickness ≤ 8 mm. Experimental tests have shown how limiting the thickness reduction (≤20%) in the first roughing station 2.1 can allow surface stresses to be included in the strength limit of the rough Worth iron forming the slab into the casting. In this way, then an almost static recrystallization of the surface in the first roughing step (especially for steels in which microalloying is present) can be carried out without defects or cracks. Subsequent thickness reductions are required.

在HRM 2之後，配置了緊急系統，萬一設備在HRM下游的部分有問題則生產和移除粗糙片；此種系統包含擺錘式剪機15、用於抽取該片的堆疊機16、旋轉式剪機17、圈繞機18，後面二個裝置的目的是在初始卵石階段就把產線從擺錘式剪機15和後續第一感應爐6.1之間的材料釋放。After HRM 2, an emergency system is deployed to produce and remove rough sheets in case of problems in the part of the equipment downstream of the HRM; such a system consists of a pendulum shear 15, a stacker 16 for extracting the sheet, a rotary Type shearing machine 17, coiling machine 18, the purpose of the latter two devices is to just release the material from the production line between the pendulum type shearing machine 15 and the subsequent first induction furnace 6.1 at the initial pebble stage.

該第一感應爐6.1是中央熱調節和除鏽區6的第一組件，該區6進一步在轉移棒的前進方向上依序包含用於破碎上述類型的鏽且在此例是由五輥所形成的機械裝置7 (可選擇的)、水除鏽器8、第二感應爐6.2。以此方式，則轉移棒在進入相鄰的精軋機3之前經歷進一步加熱，精軋機3在所示範例是由七個站台3.1~3.7所形成但也或可為五或六個。最後，鋼帶藉由冷卻輥運送機12而以受控方式來冷卻，後面接著是包含飛剪機10和至少一對單一盤捲器11的最終捲繞站。This first induction furnace 6.1 is the first component of the central thermal conditioning and descaling zone 6, which further contains, in sequence, in the direction of advancement of the transfer rods, for breaking up the above-mentioned type of rust and is in this case formed by five rollers. Formed mechanical device 7 (optional), water rust remover 8, second induction furnace 6.2. In this way, the transfer bar then undergoes further heating before entering the adjacent finishing mill 3, which in the illustrated example is formed by seven stations 3.1-3.7 but could also be five or six. Finally, the steel strip is cooled in a controlled manner by means of a cooling roller conveyor 12 followed by a final coiling station comprising a flying shear 10 and at least one pair of single coilers 11 .

為了允許超薄鋼帶有高捲繞溫度，如上所提及，設備較佳也包含封閉式捲繞盤捲器，亦即在上面所提及之元件10~12的前面而呈一對「迴旋」(carousel)盤捲器9的形式，其配置成靠近最後輥軋站台3.7且前面有類似於該元件10、12的短冷卻輥運送機12’和高速剪機10’，雖然可能較佳讓輥運送機12’進行超快冷卻以使獲得的鏽在後續施加保護性塗佈的方法中可更容易移除。In order to allow high coiling temperatures for ultra-thin steel strips, as mentioned above, the equipment preferably also includes closed winding reels, that is, in the form of a pair of "convoluted coils" in front of the above-mentioned elements 10-12. ” (carousel) in the form of a coiler 9 configured close to the final rolling station 3.7 and preceded by a short chill roll conveyor 12' and high speed shear 10' similar to the elements 10, 12, although it may be preferable to let The roller conveyor 12' performs ultra-fast cooling so that the rust obtained can be more easily removed in the subsequent process of applying a protective coating.

在每對元件10、12和10’、12’之間也較佳配置有己知類型的個別機械除鏽器14、14’ (因而不進一步描述)，其使用對轉刷或研磨性泥漿噴射而在鋼帶捲繞至盤捲器9或11上之前對它做最終表面處理。Also preferably disposed between each pair of elements 10, 12 and 10', 12' is an individual mechanical descaler 14, 14' of a known type (and thus not described further), which uses counter-rotating brushes or abrasive slurry jets to The steel strip is given a final surface treatment before it is wound onto the coiler 9 or 11.

如上所提及，圖1a~1c所示設備也包括用於在其特定區中配送保護性氣氛的系統(由粗線框所示意指出)，其在所示範例中至少從第二感應爐6.2的入口延伸至精軋機3的第三站台3.3，較佳達到最後站台，甚至更佳也在後續的冷卻和捲繞站中。顯然而言，也會有可能設想將此系統延伸至設備的其他組件，如上面提及的先前技術所述。As mentioned above, the plant shown in Figures 1a-1c also includes a system for distributing a protective atmosphere in its specific zone (schematically indicated by a thick lined box), which in the example shown is obtained from at least the second induction furnace 6.2 The entrance to the finishing mill 3 extends to the third station 3.3, preferably to the last station, even better also in the subsequent cooling and coiling stations. Obviously, it would also be possible to envisage extending this system to other components of the device, as described in the prior art mentioned above.

如上所提及，本發明的第一創新方面是存在了初始熱調節和除鏽區4，其配置在鑄造機1的出口和HRM 2之間，並且設計成以致具有僅稍微大於三公尺的長度以使該二組件之間的通過時間最小化。該區4包含感應式邊緣加熱器4.1、感應式加熱器4.2、水除鏽器5，細節較佳示範於圖3到5。As mentioned above, the first innovative aspect of the present invention is the presence of the initial thermal conditioning and descaling zone 4, which is arranged between the outlet of the casting machine 1 and the HRM 2, and is designed so as to have a length of only slightly more than three meters to minimize the transit time between the two components. This zone 4 comprises an induction edge heater 4.1, an induction heater 4.2, a water descaler 5, the details of which are better illustrated in FIGS. 3 to 5 .

更特定而言，邊緣加熱器4.1較佳設計成使用呈「槽形」(channel)架構而有通量集中器的側線圈4.1a而以橫向通量來操作，所具有的雙重目的是增加加熱系統的效率且集中磁通量在待加熱之板塊的所選區域上。再者，多虧存在了二個頻率轉換器，它能夠對板塊的左和右邊緣做不同的加熱，每個線圈4.1a有一個頻率轉換器，而非整個裝置經常僅設有一個轉換器。從申請人所進行的實驗測試，結果發現待加熱的鋼帶寬度較佳離邊緣應達到高達150毫米，並且該帶的最佳化溫度上升高達120℃以避免鏽熔化。More specifically, the edge heater 4.1 is preferably designed to operate with lateral flux using side coils 4.1a in a "channel" configuration with flux concentrators, with the dual purpose of increasing heating system efficiency and concentrates the magnetic flux on selected areas of the plate to be heated. Furthermore, thanks to the presence of two frequency converters, it is possible to heat the left and right edges of the plate differently, one frequency converter per coil 4.1a, rather than the whole device often having only one converter. From the experimental tests carried out by the applicant, it was found that the width of the steel strip to be heated should preferably be up to 150 mm from the edge and the optimum temperature rise of the strip is up to 120°C to avoid rust melting.

邊緣加熱器4.1設有操持系統，其進行橫向移動以將裝置調適於板塊寬度、設定待加熱之邊緣區域的寬度、萬一由於粗軋機中的卵石而使板塊上有「波浪」則使線圈4.1a移動離開板塊的邊緣(且若需要的話旋轉以舉升線圈4.1a)。此種操持系統舉例而言可以將每個線圈4.1a放置在滑動件而實現，該滑動件在致動器(例如電動馬達驅動的螺旋千斤頂)的作用下可沿著橫向導引來移動。The edge heater 4.1 is equipped with a handling system that performs lateral movement to adjust the device to the width of the slab, setting the width of the edge area to be heated, making the coil 4.1 in case of "waves" on the slab due to pebbles in the roughing mill a is moved away from the edge of the plate (and rotated if necessary to lift the coil 4.1a). Such a handling system can be realized, for example, by placing each coil 4.1a on a slide movable along a lateral guide under the action of an actuator, such as a screw jack driven by an electric motor.

感應式加熱器4.2包含設計成與邊緣加熱器4.1整合的表面加熱線圈，其可以採取讓板塊溫度增加的數值抵達高達最大150℃的方式來控制，因此避免板塊熔化。The induction heater 4.2 comprises surface heating coils designed to be integrated with the edge heater 4.1, which can be controlled in such a way that the plate temperature increases up to a maximum of 150° C., thus avoiding melting of the plate.

後續的除鏽器5是由在朝向感應式加熱器4.2一側上的夾輥5.1和在朝向HRM 2一側上的實際除鏽器5.2所構成。如圖4~5所示，為了避免來自除鏽器5.2之水和蒸氣的噴射可以損傷加熱器4.2的感應線圈，除鏽器5.2在入口設有可橫向移動的擋門20，其直接停靠在板塊的邊緣上，而夾輥5.1提供在板塊之上和下表面上的關閉。The subsequent descaler 5 consists of a nip roller 5.1 on the side facing the induction heater 4.2 and an actual descaling device 5.2 on the side facing the HRM 2 . As shown in Figures 4 to 5, in order to prevent the water and steam jets from the rust remover 5.2 from damaging the induction coil of the heater 4.2, the rust remover 5.2 is provided with a laterally movable door 20 at the entrance, which directly stops at the on the edge of the plate, while nip rollers 5.1 provide closure on the upper and lower surfaces of the plate.

更特定而言，於圖5所示範的具體態樣，每個擋門20安裝在平行四邊形支撐件上，該支撐件是由在擋門20和除鏽器5.2的結構之間樞轉的一對平行臂21所形成且由致動器22來移動。注意於圖5，擋門20顯示在開啟位置並且也部分在鄰接板塊邊緣上的關閉位置20’。More specifically, in the specific aspect exemplified in Figure 5, each gate 20 is mounted on a parallelogram support formed by a pivoting structure between the gate 20 and the rust remover 5.2. A pair of parallel arms 21 are formed and moved by actuators 22 . Note in Figure 5 that the shutter 20 is shown in an open position and also partially in a closed position 20' adjoining the panel edge.

水除鏽是藉由一列上噴嘴23和一列下噴嘴24來進行，其配置成橫向於板塊並且噴嘴傾斜以在與板塊移動方向相反的方向上遞送噴射。上渦卷25和下渦卷26鏡像配置在噴嘴上游並且它們的開口面向噴嘴，透過接觸板塊的唇件來收集多數的水且把水運送至渦卷的末端來排放。Water descaling is performed by means of an upper row of nozzles 23 and a lower row of nozzles 24 arranged transversely to the panel with the nozzles angled to deliver the spray in a direction opposite to the direction of travel of the panel. The upper scroll 25 and lower scroll 26 are mirrored upstream of the nozzle and their openings face the nozzle, collecting most of the water through the lip of the contact plate and conveying the water to the end of the scroll for discharge.

附帶而言，一列上噴嘴27和一列下噴嘴28配置成橫向於板塊而在渦卷的上游，其噴嘴傾斜以在板塊的移動方向上遞送空氣噴射以除去殘餘的水。組件5.1、20、25、26、27、28的組合確保加熱器4.2的感應線圈不被除鏽器5所用的水損傷。Incidentally, an upper row of nozzles 27 and a lower row of nozzles 28 are arranged transversely to the plate upstream of the scroll, with their nozzles inclined to deliver air jets in the direction of movement of the plate to remove residual water. The combination of components 5.1, 20, 25, 26, 27, 28 ensures that the induction coil of the heater 4.2 is not damaged by the water used by the descaler 5.

如上所提及，除鏽器5.2設計成把當它作用和當它不作用時之間的溫降限制為小於10℃，並且為此則冷卻水壓小於150巴且噴嘴的直徑小於3毫米。注意圖5所示的二列水噴嘴23、24 (其中省略了渦卷25、26和二列空氣噴嘴27、28)比板塊寬，因為它們的尺寸做成用於板塊的最大寬度，並且在被處理板塊外的噴嘴可以用栓塞關閉，或者來自它們的噴射藉由碰撞而「抵銷」(cancel out)；在此例，上和下噴嘴必須配置於相對位置、垂直對齊且具有相同的傾斜角(譬如5˚)。As mentioned above, the rust remover 5.2 is designed to limit the temperature drop between when it is active and when it is not active to less than 10°C, and for this purpose the cooling water pressure is less than 150 bar and the nozzle diameter is less than 3mm. Note that the two rows of water nozzles 23, 24 shown in Fig. 5 (where the scrolls 25, 26 and the two rows of air nozzles 27, 28 are omitted) are wider than the panels because they are sized for the maximum width of the panels and at Nozzles outside the plate being processed can be closed with plugs, or the jets from them can be "cancelled" by collision; in this case, the upper and lower nozzles must be arranged in opposite positions, aligned vertically and with the same inclination angle (eg 5˚).

示範於圖6的第二水除鏽器8具有類似於第一水除鏽器5的結構，但它實質上是雙重的，因為配置在二感應爐6.1和6.2之間，故它必須避免水和蒸氣從上游和下游逃脫。它因而包含在朝向第一感應爐6.1一側上的第一入口夾輥8.1、實際除鏽器8.2、在朝向第二感應爐6.2一側上的第二出口夾輥8.1’。注意在此例，類似於第一除鏽器5之擋門20的橫向擋門可以省略，因為擋門20必須關閉高度等於來自鑄造機1之板塊厚度(亦即40~150毫米)的側向通道，而進入第二除鏽器8之轉移棒的厚度是在5~20毫米的等級，所以潛在的側向漏水就少很多。The second water descaling device 8 demonstrated in Fig. 6 has a structure similar to that of the first water descaling device 5, but it is essentially double, because it is arranged between two induction furnaces 6.1 and 6.2, so it must avoid water and vapor escape from upstream and downstream. It thus comprises a first inlet nip roll 8.1 on the side towards the first induction furnace 6.1, an actual descaler 8.2, a second outlet nip roll 8.1' on the side towards the second induction furnace 6.2. Note that in this example, the horizontal door similar to the door 20 of the first rust remover 5 can be omitted, because the door 20 must be closed with a height equal to the lateral thickness of the plate from the casting machine 1 (that is, 40 ~ 150 mm). channel, and the thickness of the transfer rod entering the second rust remover 8 is on the level of 5-20 mm, so the potential lateral water leakage is much less.

再者，由於第二除鏽器8後面接著是第二感應爐6.2，其顯著增加轉移棒在最終輥軋之前的溫度，故除鏽可以較強，即使代價是溫度減低較多。因而，提供有第一列的上噴嘴33和對應列的下噴嘴34，也配置成橫向於轉移棒並且噴嘴傾斜以在與轉移棒之移動方向相反的方向上遞送噴射，以及提供相同的第二列上噴嘴33’和對應列的下噴嘴34’。較佳而言，第二列33’、34’相對於第一列33、34而橫向錯開半個節距，其中節距是二列噴嘴之間的間距，如此則二接續列33、33’和34、34’分別完全覆蓋棒的上和下表面，如此以藉由免除每一列的相鄰噴嘴之重疊帶所顯現的無效率而增加液壓除鏽方法的效率。Furthermore, since the second descaler 8 is followed by a second induction furnace 6.2, which significantly increases the temperature of the transfer bar before final rolling, descaling can be stronger, even at the expense of a larger temperature drop. Thus, there is provided a first row of upper nozzles 33 and a corresponding row of lower nozzles 34, also configured transversely to the transfer rod and the nozzles are inclined to deliver spray in a direction opposite to the direction of movement of the transfer rod, and to provide the same second An upper row of nozzles 33' and a corresponding row of lower nozzles 34'. Preferably, the second row 33', 34' is laterally staggered by half a pitch relative to the first row 33, 34, where the pitch is the distance between the two rows of nozzles, so that the two consecutive rows 33, 33' and 34, 34' completely cover the upper and lower surfaces of the rod respectively, thus increasing the efficiency of the hydraulic descaling process by eliminating the inefficiencies exhibited by overlapping bands of adjacent nozzles of each row.

二列上噴嘴33、33’類似地前面有上渦卷35、35’，然而其在此例是與唇件32、32’分開，該唇件接觸轉移棒的上表面且可在停靠位置(示範於圖6)和工作位置(此時它順時針旋轉且對齊於渦卷35、35’)之間移動。再者，第一唇件32類似地前面有第一列上噴嘴37，其配置成橫向於轉移棒以遞送空氣噴射(在此例是實質垂直於轉移棒的上表面)，同時相同的第二列上空氣噴嘴37’配置在第二列水上噴嘴33’的下游。The two rows of upper nozzles 33, 33' are similarly preceded by upper scrolls 35, 35', however in this case separate from the lip 32, 32' which contacts the upper surface of the transfer bar and can be positioned in the rest position ( exemplified in Figure 6) and the working position (where it rotates clockwise and is aligned with the scrolls 35, 35'). Again, the first lip 32 is similarly preceded by a first row of upper nozzles 37 configured transversely to the transfer bar to deliver a jet of air (in this case substantially perpendicular to the upper surface of the transfer bar), while the same second The row air nozzles 37' are arranged downstream of the second row of water nozzles 33'.

由於除鏽器8的長度不須如除鏽器5那樣緊湊，故轉移棒可以由普通的運輸輥36、36’支撐在下方，該運輸輥在下側上進行類似於下渦卷26的關閉功能。為此緣故，除鏽器8不包含對應於上組件32、32’、37、37’的下組件而僅包含下水噴嘴34、34’。無論如何，組件8.1、8.1’、32、32’、35、35’、36、36’、37、37’的組合確保感應爐6.1和6.2的感應線圈不被用於除鏽器8的水所損傷。Since the length of the descaler 8 does not have to be as compact as the descaler 5, the transfer bars can be supported below by common transport rollers 36, 36' which perform a closing function similar to the lower scroll 26 on the underside . For this reason, the rust remover 8 does not contain a lower assembly corresponding to the upper assembly 32, 32', 37, 37' but only the lower water nozzles 34, 34'. However, the combination of components 8.1, 8.1', 32, 32', 35, 35', 36, 36', 37, 37' ensures that the induction coils of the induction furnaces 6.1 and 6.2 are not overwhelmed by the water used for the descaler 8 damage.

如上所提及，由於除鏽器8設計用於較強的除鏽，故冷卻水壓可以高達380巴，噴嘴的直徑再次小於3毫米，即使這可以導致轉移棒的溫度減低高達150~200℃。顯然即使於除鏽器8中，諸列水噴嘴33、34和33’、34’的尺寸仍做成用於棒的最大寬度，而在被處理棒外的噴嘴是以栓塞來關閉，或者噴射藉由碰撞而「抵銷」；在此例，上和下噴嘴必須垂直對齊且具有相同的傾斜角(譬如5˚)。As mentioned above, since the rust remover 8 is designed for strong rust removal, the cooling water pressure can be as high as 380 bar, and the diameter of the nozzle is again less than 3 mm, even though this can cause the temperature of the transfer rod to drop by as much as 150~200°C . It is obvious that even in the descaling device 8, the columns of water nozzles 33, 34 and 33', 34' are sized for the maximum width of the bar, while the nozzles outside the bar to be treated are closed with plugs, or jets "Offset" by collision; in this case, the upper and lower nozzles must be vertically aligned and have the same angle of inclination (say 5˚).

現參見圖7，其顯示第二感應爐6.2的四個電感器40，可以看到轉移棒是由配置在電感器40之間空間中的下輥41所支撐，該空間則在底部由該輥41的支撐結構所關閉且在頂部由可移除的蓋子42所關閉。因而有利的是把一橫列的噴嘴43安裝在該蓋子42上以致獲得一系列腔室，保護性氣氛可以藉由該噴嘴43而噴射至該腔室中。Referring now to Figure 7, which shows the four inductors 40 of the second induction furnace 6.2, it can be seen that the transfer bars are supported by lower rollers 41 arranged in the spaces between the inductors 40, which are at the bottom formed by the rollers. 41 and closed at the top by a removable cover 42. It is thus advantageous to mount a row of nozzles 43 on the cover 42 so as to obtain a series of chambers into which a protective atmosphere can be sprayed through the nozzles 43 .

此保護性氣氛可以為各式各樣，只要它具有極低或零氧含量即可，如此以限制或避免材料的表面氧化。典型而言，從噴嘴43連續遞送氮而減少氧，直到獲得體積百分比最大3之氧含量的低氧化性氣氛為止。其他可能的做法是使用完全由惰性氣體(氮、氬…等)所組成的氣氛，或者添加氫至惰性氣體而高達體積百分比最大5的含量以獲得稍微還原性氣氛。The protective atmosphere can be varied so long as it has very low or zero oxygen content, so as to limit or avoid surface oxidation of the material. Typically, nitrogen is delivered continuously from nozzle 43 with oxygen reduced until a low oxidizing atmosphere with an oxygen content of at most 3% by volume is obtained. Other possibilities are to use an atmosphere consisting entirely of inert gases (nitrogen, argon... etc.), or to add hydrogen to the inert gases up to a content of max. 5 volume percent to obtain a slightly reducing atmosphere.

如上所提及，可以設想出類似的解決方案以在精軋機3的站台之間獲得腔室，其係將噴嘴安裝在二站台之間空間中所配置之圈繞器的結構上。此解決方案的第一具體態樣示範於圖8和9，其顯示保護性氣氛進給系統如何同時相對於圖8所指出的截面A-A (亦即相對於圈繞器51的上游和下游側)以及相對於圖9所指出之鋼帶的垂直縱向中間平面Y (亦即相對於鋼帶的左和右側)而具有雙重鏡像對稱。於此等圖所示範的例子，該系統配置在精軋機3的第一、二站台3.1、3.2之間，但清楚的是相同系統可能配置在此軋機的任一對站台之間。As mentioned above, a similar solution can be envisaged to obtain a chamber between the stations of the finishing mill 3 by mounting the nozzles on the structure of the coiler arranged in the space between the two stations. A first embodiment of this solution is exemplified in Figures 8 and 9, which show how the protective atmosphere feed system is simultaneously relative to the section A-A indicated in Figure 8 (i.e. relative to the upstream and downstream sides of the coiler 51) And a double mirror symmetry with respect to the vertical longitudinal median plane Y of the strip indicated in FIG. 9 (ie with respect to the left and right sides of the strip). In the example illustrated in these figures, the system is arranged between the first and second stations 3.1, 3.2 of the finishing mill 3, but it is clear that the same system could be arranged between any pair of stations of the mill.

此系統在鋼帶的每一側上包含一對垂直進給管道52、52’，其安裝在圈繞器51的結構上而分別在其上游和下游側；並且從該管道52、52’的每一者分支出二列實質水平的噴嘴，其縱向配置在鋼帶之上和之下且平行於其邊緣。更特定而言，二列上噴嘴53、53’的每一者延伸朝向二站台3.1、3.2而幾乎高達通過圈繞器51之中央的截面A-A，而二列下噴嘴54、54’的每一者僅分別延伸朝向相鄰的站台3.1、3.2。再者，如圖9的細節所示，噴嘴在垂直平面中傾斜而指向鋼帶的表面。This system comprises a pair of vertical feed ducts 52, 52' on each side of the steel strip, which are mounted on the structure of the coiler 51 on its upstream and downstream sides respectively; Each branches off into two rows of substantially horizontal nozzles disposed longitudinally above and below the strip and parallel to its edges. More specifically, each of the two upper rows of nozzles 53, 53' extends towards the two stations 3.1, 3.2 almost up to the section A-A through the center of the coiler 51, while each of the two lower rows of nozzles 54, 54' The latter only extend towards the adjacent platforms 3.1, 3.2, respectively. Again, as shown in detail in Figure 9, the nozzles are inclined in a vertical plane directed towards the surface of the steel strip.

為了限制保護性氣氛的分散，諸列噴嘴較佳包在由一對上轉板55、55’和一對下轉板56、56’所形成的腔室裡，轉板則顯然塑形成允許鋼帶通過腔室。更特定而言，每個轉板以其某一外端來樞轉以允許藉由旋轉90˚而開啟含括腔室，如圖8所指出，其中關閉的腔室是以較粗的線所顯示，而參考數字55、55’、56、56’指出轉板旋轉於開啟位置。In order to limit the dispersion of the protective atmosphere, the rows of nozzles are preferably enclosed in a chamber formed by a pair of upper rotating plates 55, 55' and a pair of lower rotating plates 56, 56', which are apparently shaped to allow steel belt through the chamber. More specifically, each flap pivots at one of its outer ends to allow the containing chamber to be opened by rotating 90°, as indicated in Figure 8, where the closed chamber is indicated by a thicker line. , while reference numerals 55, 55', 56, 56' indicate that the rotary plate is rotated in the open position.

類似於前一者之系統的第二具體態樣則示範於圖10和11，其顯示圖8和9的相同元件(因而不重複其參考數字)，僅在每個轉板的外表面上添加了至少二平行列的橫向噴嘴57、57’、58、58’。保護性氣氛經由個別的進給管道50、50’、59、59’而抵達成對的每一列，並且噴嘴所指向的方向是實質垂直於鋼帶的上和下表面。A second embodiment of a system similar to the former is exemplified in Figures 10 and 11, which show the same elements of Figures 8 and 9 (thereby not repeating their reference numerals), only with the addition of At least two parallel rows of transverse nozzles 57, 57', 58, 58' are provided. The protective atmosphere reaches each column of the pair via individual feed ducts 50, 50', 59, 59', with the nozzles pointing in a direction substantially perpendicular to the upper and lower surfaces of the strip.

最後，圖12和13示範該系統的第三具體態樣，其實務上是從前一者而獲得，其移除了圖8和9的元件且僅保留配置在個別的轉板65、65’、66、66’上的至少二橫向平行列63、63’、64、64’並且經由個別的管道61、61’、62、62’來進給。相對於圖10、11所示類似元件的差異如下： 多個噴嘴57、57’、58、58’是由寬度實質相同於鋼帶的單一噴嘴所取代，亦即狹縫； 噴嘴不是指向在實質垂直於鋼帶之上和下表面的方向，而是分別傾斜朝向相鄰的輥軋站台3.1和3.2； 保護性氣氛不是經由如第二具體態樣的單一中央管道而進給至每對橫列63、63’、64、64’，而是經由如圖8和9之第一具體態樣的二側向管道61、61’、62、62’。 Finally, Figures 12 and 13 demonstrate a third specific aspect of the system, which is actually derived from the former, which removes the elements of Figures 8 and 9 and leaves only the configurations on the individual turning plates 65, 65', At least two transverse parallel rows 63 , 63 ′, 64 , 64 ′ on 66 , 66 ′ are fed via individual ducts 61 , 61 ′, 62 , 62 ′. The differences with respect to similar elements shown in Figures 10 and 11 are as follows: The plurality of nozzles 57, 57', 58, 58' are replaced by a single nozzle, i.e. a slit, of substantially the same width as the strip; the nozzles are not directed in a direction substantially perpendicular to the upper and lower surfaces of the steel strip, but obliquely towards the adjacent rolling stations 3.1 and 3.2, respectively; The protective atmosphere is not fed to each pair of rows 63, 63', 64, 64' via a single central duct as in the second embodiment, but via the two sides of the first embodiment as in Figures 8 and 9 To the pipes 61, 61', 62, 62'.

如上所提及，上述設備可以與用於施加保護性塗佈的產線13 (典型為電鍍線)整合，該產線13直接連接在最終盤捲器11的下游，如圖2所示。以此方式，則設備可以生產捲繞在盤捲器9或11上之未塗佈鋼帶的圈捲，以及生產在產線13之末端的進一步捲繞站所捲繞之塗佈鋼帶的圈捲。As mentioned above, the above equipment can be integrated with a line 13 (typically an electroplating line) for applying the protective coating, which line 13 is connected directly downstream of the final coiler 11 , as shown in FIG. 2 . In this way, the plant can then produce coils of uncoated steel strip wound on coilers 9 or 11, as well as coils of coated steel strip wound at a further winding station at the end of line 13. Circle roll.

另一種可能的替代選擇是在含有水或稍微氧化性水溶液的水槽中(未顯示)進行盤捲器9或11上所捲繞之圈捲的液體冷卻。此允許所獲得的鏽在後續施加保護性塗佈的方法中是可更輕易地移除。Another possible alternative is to carry out the liquid cooling of the coils wound on the coilers 9 or 11 in a water bath (not shown) containing water or a slightly oxidizing aqueous solution. This allows the rust obtained to be more easily removable in subsequent methods of applying a protective coating.

再者，熱掃描器(圖未顯示)較佳定位在以下的出口：鑄造機1、HRM 2、第一感應爐6.1、除鏽器8、第二感應爐6.2、精軋機3、冷卻輥運送機12、12’。此等熱掃描器在操作上連接至溫度控制和管理系統，也多虧有插在鑄錠模之銅板中的熱偶(未顯示)，該系統藉由插在該模中的電磁煞車(electromagnetic brake，EMBR)(也未顯示)而影響模具中之鋼的溫度分布。事實上，熱掃描器和熱偶提供板塊中之溫度分布的影像，而讓控制系統有能力對EMBR和板塊冷卻系統的操作參數採取修正動作。此控制系統顯然也作用在主動地影響被處理材料之溫度的所有其他組件上，包括在加熱(4.1、4.2、6.1、6.2)和冷卻(5.2、7、8.2、12、12’、14、14’)二期間。Furthermore, thermal scanners (not shown) are preferably positioned at the exits of: Casting machine 1, HRM 2, First induction furnace 6.1, Descaler 8, Second induction furnace 6.2, Finishing mill 3, Cool roll delivery Machine 12, 12'. These thermal scanners are operatively linked to a temperature control and management system, also thanks to thermocouples (not shown) inserted in the copper plates of the ingot mould, which is controlled by an electromagnetic brake inserted in the mould. , EMBR) (also not shown) to affect the temperature distribution of the steel in the mold. In effect, thermal scanners and thermocouples provide an image of the temperature distribution in the panel, enabling the control system to take corrective action on the operating parameters of the EMBR and panel cooling system. This control system obviously also acts on all other components that actively affect the temperature of the material being processed, including in heating (4.1, 4.2, 6.1, 6.2) and cooling (5.2, 7, 8.2, 12, 12', 14, 14 ') two periods.

舉例來說，下表代表可能的輥軋片，其用於生產厚度0.4毫米的超薄鋼帶而最終盤捲器上的捲繞溫度為680℃： 站台    2.1 2.2 2.3 2.4          入口溫度 [℃] 1250                   入口速度 [公尺∕秒] 0.1                   入口厚度 [毫米] 90 40.5 18.2 10          出口厚度 [毫米] 40.5 18.2 10 6.5          減低 [%] 55 55 45 35          出口溫度 [℃]          970                                     站台    3.1 3.2 3.3 3.4 3.5 3.6 3.7 入口溫度 [℃] 1150                   入口速度 [公尺∕秒] 1.38                   入口厚度 [毫米] 6.5 2.92 1.6 0.97 0.68 0.54 0.46 出口厚度 [毫米] 2.92 1.6 0.97 0.68 0.54 0.46 0.4 減低 [%] 55 45 40 30 20 15 13 出口溫度 [℃]                   870 出口速度 [公尺∕秒]                   22.6 As an example, the following table represents possible rolled sheets for the production of ultra-thin steel strip with a thickness of 0.4 mm and a coiling temperature of 680°C on the final coiler: platform 2.1 2.2 2.3 2.4 Inlet temperature [℃] 1250 entrance velocity [m/s] 0.1 Inlet thickness [mm] 90 40.5 18.2 10 Exit thickness [mm] 40.5 18.2 10 6.5 reduce [%] 55 55 45 35 output temperature [℃] 970 platform 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Inlet temperature [℃] 1150 entrance velocity [m/s] 1.38 Inlet thickness [mm] 6.5 2.92 1.6 0.97 0.68 0.54 0.46 Exit thickness [mm] 2.92 1.6 0.97 0.68 0.54 0.46 0.4 reduce [%] 55 45 40 30 20 15 13 output temperature [℃] 870 export speed [m/s] 22.6

使用上述設備而有最完整之具體態樣的對應生產方法因而包含以下順序的步驟： (a)連續鑄造薄或中等板塊(1)； (b)感應式加熱(4.1)板塊邊緣； (c)感應式加熱(4.2)板塊其餘的表面 (d)第一水除鏽(5.2)； (e)以3~5道粗軋(2)來獲得轉移棒； (f)第一感應式加熱(6.1)轉移棒 (g)機械破裂(7)鏽； (h)第二水除鏽(8.2)； (i)第二感應式加熱(6.2)轉移棒； (j)以5~7道精軋(3)來獲得鋼帶； (k)控制鋼帶的冷卻(12；12’)； (l)機械除鏽(14；14’)； (m)切割鋼帶(10；10’)且捲繞在盤捲器(9；11)上；或者 (n)鋼帶直接通往施加保護性塗佈的步驟(13)而有最終的捲繞； 其中至少階段(i)和(j)(至少高達第三道)是在如上所述之稍微氧化性、惰性或稍微還原性的保護性氣氛中進行，並且較佳在捲繞部分中的階段(k)和(m)也是。 The corresponding production method in the most complete embodiment using the above-mentioned equipment thus comprises the steps in the following order: (a) continuous casting of thin or medium slabs (1); (b) induction heating (4.1) of the plate edge; (c) Inductive heating (4.2) of the remaining surface of the plate (d) First water derusting (5.2); (e) obtain the transfer rod with 3~5 rough rolling (2); (f) First induction heating (6.1) transfer bar (g) mechanical cracking (7) rust; (h) second water derusting (8.2); (i) a second induction heating (6.2) transfer bar; (j) obtain the steel strip with 5~7 finishing rolling (3); (k) controlling the cooling of the strip (12; 12'); (l) Mechanical rust removal (14; 14'); (m) cutting the strip (10; 10') and winding it on a coiler (9; 11); or (n) The strip goes directly to the step (13) of applying a protective coating with final winding; wherein at least stages (i) and (j) (at least up to the third pass) are carried out in a slightly oxidizing, inert or slightly reducing protective atmosphere as described above, and preferably in stages in the winding section ( k) and (m) too.

清楚的是上面描述和示範的根據本發明之設備和方法的具體態樣僅是範例，其易有許多的變化。舉例而言，雖然上述顯示於圖4~6和8~11之諸列噴嘴全是由恆定節距來配置的複數個噴嘴所形成，但也會有可能提供具有取決於區域之不同節距的噴嘴，以及∕或者以連續延伸的狹縫來取代所有或部分的噴嘴(如圖13所示)。類似而言，封閉式盤捲器和最終盤捲器都可能實施成迴旋盤捲器9或單一盤捲器11，藉此設備可能包含其任何組合。It is clear that the specific aspects of the apparatus and method according to the present invention described and illustrated above are examples only, which are susceptible to many variations. For example, although the above-mentioned columns of nozzles shown in FIGS. 4-6 and 8-11 are all formed by a plurality of nozzles arranged at a constant pitch, it is also possible to provide nozzles with different pitches depending on the area. nozzles, and/or replace all or part of the nozzles with continuously extending slits (as shown in FIG. 13 ). Similarly, both the enclosed coiler and the final coiler may be implemented as a swing coiler 9 or as a single coiler 11 whereby the apparatus may comprise any combination thereof.

再者，清楚的是基於空間和∕或成本的緣故，系統或可沒有圖8~13所示的含括腔室，雖然這會更難以控制輥軋站台之間空間中的氣氛組成。在此情形，圖10~13所示的諸列橫向噴嘴會安裝在不形成含括腔室的簡單旋轉支撐件上。Furthermore, it is clear that for reasons of space and/or cost, the system may not have the containment chamber shown in Figures 8-13, although this would make it more difficult to control the composition of the atmosphere in the space between the rolling stations. In this case, the rows of transverse nozzles shown in Figures 10-13 would be mounted on a simple rotating support that does not form a containment chamber.

1:鑄造機 2:粗軋機(HRM) 2.1:第一粗軋站台 2.2:第二粗軋站台 2.3:第三粗軋站台 2.4:第四粗軋站台 3:精軋機 3.1~3.7:輥軋站台 4:初始熱調節和除鏽區 4.1:感應式邊緣加熱器 4.1a:側線圈 4.2:感應式加熱器 5:第一水除鏽器 5.1:夾輥 5.2:實際除鏽器 6:中央熱調節和除鏽區 6.1:第一感應爐 6.2:第二感應爐 7:機械裝置 8:第二水除鏽器 8.1:第一入口夾輥 8.1’:第二出口夾輥 8.2:實際除鏽器 9:迴旋盤捲器 10:飛剪機 10’:高速剪機 11:單一盤捲器 12:冷卻輥運送機 12’:短冷卻輥運送機 13:施加保護性塗佈的產線 14,14’:機械除鏽器 15:擺錘式剪機 16:堆疊機 17:旋轉式剪機 18:圈繞機 20:擋門 20’:關閉位置 21:平行臂 22:致動器 23:上噴嘴 24:下噴嘴 25:上渦卷 26:下渦卷 27:上噴嘴 28:下噴嘴 32:第一唇件 32’:第二唇件 33:第一列上噴嘴 33’:第二列上噴嘴 34:第一列下噴嘴 34’:第二列下噴嘴 35,35’:上渦卷 36,36’:運輸輥 37:第一列上噴嘴 37’:第二列上噴嘴 40:電感器 41:下輥 42:蓋子 43:噴嘴 50,50’:進給管道 51:圈繞器 52,52’:垂直進給管道 53,53’:上噴嘴 54,54’:下噴嘴 55,55’:上轉板 56,56’:下轉板 57,57’:橫向噴嘴 58,58’:橫向噴嘴 59,59’:進給管道 61,61’:進給管道 62,62’:進給管道 63,63’:狹縫 64,64’:狹縫 65,65’:轉板 66,66’:轉板 Y:中間平面 1: Casting machine 2: Rough rolling mill (HRM) 2.1: The first rough rolling station 2.2: The second rough rolling station 2.3: The third rough rolling station 2.4: The fourth rough rolling station 3: Finishing mill 3.1~3.7: Rolling station 4: Initial heat conditioning and rust removal area 4.1: Induction Edge Heater 4.1a: Side Coil 4.2: Induction heater 5: The first water rust remover 5.1: Nip roller 5.2: Actual deruster 6:Central heat conditioning and derusting area 6.1: The first induction furnace 6.2: Second induction furnace 7:Mechanical device 8: The second water rust remover 8.1: First entry nip roll 8.1': Second exit nip roll 8.2: Actual deruster 9: Convolving winder 10: Clipper 10': high speed shearing machine 11: Single coiler 12: Cooling roller conveyor 12': Short cooling roller conveyor 13: Production line for applying protective coating 14,14': mechanical rust remover 15: Pendulum shears 16:Stacking machine 17:Rotary shears 18: coil winding machine 20: door stop 20': closed position 21: Parallel arm 22: Actuator 23: Upper nozzle 24: Lower nozzle 25: scroll up 26: scroll down 27: Upper nozzle 28: Lower nozzle 32: First lip piece 32': second lip piece 33: Nozzles on the first row 33': Nozzles on the second column 34: Nozzles in the first column 34': the second row of lower nozzles 35,35': upper scroll 36,36': transport roller 37: Nozzles on the first row 37': Nozzles on the second column 40: Inductor 41: Lower roller 42: cover 43: Nozzle 50,50': Feed pipe 51: Winder 52,52': vertical feed pipe 53,53': upper nozzle 54,54': Lower nozzle 55,55': Up turn plate 56,56': Down turn plate 57,57': horizontal nozzle 58,58': horizontal nozzle 59,59': Feed pipe 61,61': Feed pipe 62,62': Feed pipe 63,63': slit 64,64': slit 65,65': turn plate 66,66': turn plate Y: middle plane

從以下參考所附圖式之某些具體態樣的詳細且非限制性敘述，熟於此技術者將明白根據本發明之設備和方法的進一步優點和特徵，其中： [圖1a、1b、1c]顯示具體態樣中之設備的示意圖，其包含所有可選擇的組件(抗腐蝕塗佈線除外)； [圖2]是示意圖，其僅顯示連接至圖1a~1c之設備末端的抗腐蝕塗佈線； [圖3]是初始熱調節和除鏽區的側視圖； [圖4]是圖3除鏽器之垂直截面的示意圖； [圖5]是前透視圖，其顯示圖3除鏽器的某些組件； [圖6]是第二水除鏽器之垂直截面的示意圖； [圖7]是在精軋機前面的第二感應爐之某些組件的垂直截面示意圖； [圖8]是保護性氣氛配送裝置之第一具體態樣的垂直截面示意圖，其放置在精軋機的二站台之間； [圖9]是沿著圖8配送裝置的線A-A之垂直截面的細節示意圖； [圖10]是保護性氣氛配送裝置的第二具體態樣而類似圖8的視圖； [圖11]是沿著圖10配送裝置的線B-B之垂直截面的細節示意圖； [圖12]是保護性氣氛配送裝置的第三具體態樣而類似圖8的視圖；以及 [圖13]是沿著圖12配送裝置的線C-C之垂直截面的細節示意圖。 Further advantages and features of the apparatus and method according to the present invention will be apparent to those skilled in the art from the following detailed and non-limiting description of certain specific aspects with reference to the accompanying drawings, in which: [Fig. 1a, 1b, 1c] shows a schematic diagram of the equipment in the embodiment, which includes all optional components (except the anti-corrosion coating line); [Fig. 2] is a schematic diagram, which only shows the anti-corrosion coating line connected to the end of the equipment of Fig. 1a ~ 1c; [Fig. 3] is a side view of the initial thermal conditioning and descaling area; [Fig. 4] is the schematic diagram of the vertical section of Fig. 3 deruster; [Fig. 5] is a front perspective view showing some components of the rust remover of Fig. 3; [Fig. 6] is the schematic diagram of the vertical section of the second water rust remover; [Fig. 7] is a schematic vertical cross-sectional view of some components of the second induction furnace in front of the finishing mill; [Fig. 8] is a vertical cross-sectional schematic view of the first specific aspect of the protective atmosphere distribution device, which is placed between the two platforms of the finishing mill; [Fig. 9] is a detailed schematic diagram of a vertical section along the line A-A of the dispensing device in Fig. 8; [Fig. 10] is a view similar to Fig. 8 of the second specific aspect of the protective atmosphere distribution device; [Fig. 11] is a detailed schematic diagram of a vertical section along the line B-B of the dispensing device in Fig. 10; [Fig. 12] is a view similar to Fig. 8 of the third specific aspect of the protective atmosphere distribution device; and [ Fig. 13 ] is a detailed schematic view of a vertical section along line C-C of the dispensing device in Fig. 12 .

1:鑄造機 1: Casting machine

2:粗軋機 2: Rough rolling mill

2.1:第一粗軋站台 2.1: The first rough rolling station

2.2:第二粗軋站台 2.2: The second rough rolling station

2.3:第三粗軋站台 2.3: The third rough rolling station

2.4:第四粗軋站台 2.4: The fourth rough rolling station

4:初始熱調節和除鏽區 4: Initial heat conditioning and rust removal area

4.1:感應式邊緣加熱器 4.1: Induction Edge Heater

4.2:感應式加熱器 4.2: Induction heater

5:第一水除鏽器 5: The first water rust remover

15:擺錘式剪機 15: Pendulum shears

16:堆疊機 16:Stacking machine

17:旋轉式剪機 17:Rotary shears

18:圈繞機 18: coil winding machine

Claims (32)

一種用於連續生產最小厚度0.3毫米之熱軋鋼帶的設備，其沿著被處理之材料的移動方向而依序包括： 用於連續鑄造厚度在40和150毫米之間且最大寬度至少2100毫米之薄或中等板塊的裝置(1)， 粗軋機(2)，其包含至少三個站台， 第一感應爐(6.1)， 水除鏽器(8)， 第二感應爐(6.2)， 精軋機(3)，其包含五至七個站台， 冷卻站(12)， 切割站(10)， 捲繞站，其具有至少一對迴旋盤捲器(9)或單一盤捲器(11)，以及 進給含有體積百分比≤3的氧之保護性氣氛的系統，其至少從該第二感應爐(6.2)的入口至該精軋機(3)的第三站台； 該設備的特徵在於：在該連續鑄造裝置(1)和該粗軋機(2)之間，該設備也包括熱調節和除鏽的初始區(4)，其依序包含感應式邊緣加熱器(4.1)、用於該板塊其餘表面的感應式加熱器(4.2)、及第一水除鏽器(5)。 A plant for the continuous production of hot-rolled steel strip with a minimum thickness of 0.3 mm, which sequentially includes, along the direction of movement of the material being processed: Apparatus (1) for continuous casting of thin or medium slabs with a thickness between 40 and 150 mm and a maximum width of at least 2100 mm, a roughing mill (2) comprising at least three stations, first induction furnace (6.1), water rust remover (8), second induction furnace (6.2), finishing mill (3), which comprises five to seven stations, cooling station (12), cutting station (10), a winding station having at least one pair of revolving coilers (9) or a single coiler (11 ), and A system for feeding a protective atmosphere containing oxygen with a volume percentage ≤ 3, at least from the entrance of the second induction furnace (6.2) to the third station of the finishing mill (3); The plant is characterized in that between the continuous casting unit (1) and the roughing mill (2), the plant also includes an initial zone (4) for thermal conditioning and descaling, which in turn contains induction edge heaters ( 4.1), an induction heater (4.2) for the remaining surface of the panel, and a first water descaler (5). 根據請求項1的設備，其中該第一水除鏽器(5)包含在朝向該感應式加熱器(4.2)之一側上的夾輥(5.1)，後面接著是實際除鏽器(5.2)，其設在入口而具有一對可橫向移動的擋門(20)，該擋門(20)直接鄰接在該板塊的邊緣上，該擋門(20)的每一者較佳安裝在平行四邊形支撐件上，該支撐件是由在該擋門(20)和該除鏽器(5.2)的結構之間樞轉且由致動器(22)來移動的一對平行臂(21)所形成。Apparatus according to claim 1, wherein the first water descaler (5) comprises a nip roll (5.1) on the side towards the induction heater (4.2), followed by the actual descaler (5.2) , which is located at the entrance and has a pair of laterally movable doors (20), the doors (20) directly adjoining the edge of the panel, each of the doors (20) preferably mounted on a parallelogram on a support formed by a pair of parallel arms (21) pivoting between the gate (20) and the structure of the rust remover (5.2) and moved by an actuator (22) . 根據請求項1的設備，其中該熱調節和除鏽的初始區(4)具有3~5公尺的長度。The apparatus according to claim 1, wherein the thermal conditioning and descaling initial zone (4) has a length of 3-5 meters. 根據請求項1的設備，其中該邊緣加熱器(4.1)設計成使用側線圈(4.1a)而以橫向通量來操作，該側線圈(4.1a)具有「槽形」(channel)架構而有通量集中器，該側線圈(4.1a)的每一者較佳配備有它自己的頻率轉換器，如此則該邊緣加熱器(4.1)能夠以不同方式來加熱該板塊的右和左邊緣。Apparatus according to claim 1, wherein the edge heater (4.1) is designed to operate with transverse flux using a side coil (4.1a) having a "channel" architecture with Flux concentrator, each of the side coils (4.1a) is preferably equipped with its own frequency converter, so that the edge heater (4.1) can heat the right and left edge of the panel differently. 根據請求項1的設備，其中該邊緣加熱器(4.1)的尺寸做成從每個邊緣來加熱該板塊之高達150毫米的側帶以及∕或者在該側帶獲得高達120℃的溫度增加。Apparatus according to claim 1, wherein the edge heater (4.1) is dimensioned to heat up to 150 mm of the side zone of the plate from each edge and/or to obtain a temperature increase of up to 120° C. in the side zone. 根據請求項1的設備，其中該邊緣加熱器(4.1)配備有操持系統，其進行橫向移動以將該邊緣加熱器(4.1)調適於該板塊寬度、設定待加熱之該側帶的寬度、及移動離開該板塊的該邊緣且若需要的話則旋轉舉升感應線圈，該操持系統較佳是將每個感應線圈放置在滑動件上而實施，該滑動件在致動器的作用下可沿著橫向導引而移動，該致動器較佳是驅動螺旋千斤頂的電動馬達。Apparatus according to claim 1, wherein the edge heater (4.1) is equipped with a handling system that moves laterally to adapt the edge heater (4.1) to the panel width, to set the width of the side strip to be heated, and Moving away from the edge of the panel and, if necessary, rotating the lifting induction coils, the handling system is preferably implemented by placing each induction coil on a slide which, under the action of an actuator, can be moved along Guided laterally to move, the actuator is preferably an electric motor driving the jack screw. 根據請求項1的設備，其中該第一除鏽器(5)包括： 一列上水噴嘴(23)和一列下水噴嘴(24)，其配置成橫向於該板塊，並且該噴嘴傾斜以在與該板塊之該移動方向相反的方向上來遞送噴射， 上渦卷(25)和下渦卷(26)，其鏡像配置在該列噴嘴(23、24)的上游，並且它們的開口面向該噴嘴，該渦卷(25、26)的每一者設有末端排洩件以移除透過接觸該板塊之唇件所收集的水， 一列上空氣噴嘴(27)和一列下空氣噴嘴(28)，其配置成橫向於該板塊而在該渦卷(25、26)的上游，並且該噴嘴傾斜以在該板塊的該移動方向上來遞送噴射， 該列水噴嘴(23、24)較佳配置在相對位置，而該噴嘴垂直對齊且有相同的傾斜角，並且較佳具有＜3毫米的直徑。 According to the equipment of claim 1, wherein the first rust remover (5) comprises: a row of upper water nozzles (23) and a row of lower water nozzles (24) arranged transversely to the panel and the nozzles are inclined to deliver spray in a direction opposite to the direction of movement of the panel, An upper scroll (25) and a lower scroll (26), which are mirror images arranged upstream of the row of nozzles (23, 24) and whose openings face the nozzles, each of the scrolls (25, 26) is provided have end drains to remove water collected through the lip contacting the panel, an upper row of air nozzles (27) and a lower row of air nozzles (28) arranged transversely to the plate upstream of the scroll (25, 26), and the nozzles are inclined to deliver in the direction of movement of the plate injection, The rows of water nozzles (23, 24) are preferably arranged in opposite positions, and the nozzles are vertically aligned and have the same inclination angle, and preferably have a diameter of <3 mm. 根據請求項1的設備，其中放置在該二感應爐(6.1、6.2)之間的該第二水除鏽器(8)包含在朝向該第一感應爐(6.1)之一側上的第一夾輥(8.1)、實際除鏽器(8.2)、及在朝向該第二感應爐(6.2)之一側上的第二夾輥(8.1’)。Apparatus according to claim 1, wherein the second water descaler (8) placed between the two induction furnaces (6.1, 6.2) comprises a first Nip roller (8.1), actual descaler (8.2), and second nip roller (8.1') on the side facing the second induction furnace (6.2). 根據請求項8的設備，其中該第二水除鏽器(8)包含： 第一列和第二列上水噴嘴(33、33’)及第一列和第二列下水噴嘴(34、34’)，所有的該列都配置成橫向於該轉移棒，並且該噴嘴傾斜以在與該棒之該移動方向相反的方向上來遞送噴射，該第二列(33’、34’)較佳相對於該第一列(33、34)而橫向錯開半個節距， 該二列上水噴嘴(33、33’)之每一者的前面有上渦卷(35、35’)和可移動的唇件(32、32’)，該唇件(32、32’)在工作位置接觸該轉移棒的上表面且對齊於個別的該渦卷(35、35’)， 第一列和第二列上空氣噴嘴(37、37’)，其配置成橫向於該轉移棒，並且該噴嘴較佳垂直於該棒的該上表面，該第一列(37)放置在該第一可移動的唇件(32)的上游，並且該第二列(37’)放置在該第二列上水噴嘴(33’)的下游， 該列上水噴嘴(33、33’)較佳配置成相對於該列下水噴嘴(34、34’)，而該噴嘴垂直對齊且有相同的傾斜角，並且較佳具有＜3毫米的直徑。 The device according to claim 8, wherein the second water descaler (8) comprises: First and second row of water nozzles (33, 33') and first and second row of water nozzles (34, 34'), all of which are configured transversely to the transfer bar, and the nozzles are inclined To deliver spray in a direction opposite to the direction of movement of the rod, the second row (33', 34') is preferably laterally staggered by half a pitch relative to the first row (33, 34), There are upper scrolls (35, 35 ') and movable lip parts (32, 32 ') in front of each of the two rows of water nozzles (33, 33 '), and the lip parts (32, 32 ') contacting the upper surface of the transfer rod in working position and aligned with the individual scrolls (35, 35'), First and second rows of upper air nozzles (37, 37'), which are configured transversely to the transfer rod, and the nozzles are preferably perpendicular to the upper surface of the rod, the first row (37) is placed on the upstream of the first movable lip (32), and the second row (37') is placed downstream of the second row of watering nozzles (33'), The row of upper water nozzles (33, 33') is preferably arranged opposite the row of lower water nozzles (34, 34'), with the nozzles being vertically aligned and having the same angle of inclination, and preferably having a diameter < 3 mm. 根據請求項1的設備，其中進給該保護性氣氛至該精軋機(3)的該系統包括在該二完工站台(3.1、3.2…3.7)之間的空間中而在該鋼帶的每一側上的一對進給管(52、52’)，其安裝在圈繞器(51)的結構上而分別在其上游和下游側；並且從此等進給管(52、52’)的每一者分支出二實質水平列的噴嘴，其縱向配置在該鋼帶之上(53、53’)和之下(54、54’)且平行於其邊緣；該二列上噴嘴(53、53’)的每一者較佳延伸朝向該二站台(3.1、3.2…3.7)而幾乎至橫向於該鋼帶的垂直平面且通過該圈繞器(51)的中央；而該二列下噴嘴(54、54’)的每一者僅延伸朝向該相鄰站台(3.1、3.2…3.7)，該噴嘴較佳於該垂直平面中傾斜而指向該鋼帶表面。Plant according to claim 1, wherein the system for feeding the protective atmosphere to the finishing mill (3) is comprised in the space between the two finishing stations (3.1, 3.2...3.7) at each of the strip A pair of feed pipes (52, 52') on the sides, which are installed on the structure of the coiler (51) respectively on its upstream and downstream sides; and from each of these feed pipes (52, 52') One of them branched out into two substantially horizontal rows of nozzles, which were arranged longitudinally above (53, 53') and below (54, 54') of the steel strip and parallel to its edges; ') each preferably extend towards the two stations (3.1, 3.2...3.7) almost to the vertical plane transverse to the strip and through the center of the coiler (51); and the two rows of lower nozzles ( 54, 54') extend only towards the adjacent station (3.1, 3.2...3.7), the nozzles preferably being inclined in the vertical plane towards the strip surface. 根據請求項10的設備，其中進給該保護性氣氛的該系統進一步包含至少二平行水平列噴嘴(57、57’、58、58’)，其橫向配置在該縱列(53、53’、54、54’)的每一者而在該鋼帶之上和之下；該保護性氣氛經由個別的進給管(50、50’、59、59’)而抵達每對橫列(57、57’、58、58’)，並且該噴嘴較佳指向在實質垂直於該鋼帶之該上和下表面的方向。The apparatus according to claim 10, wherein the system for feeding the protective atmosphere further comprises at least two parallel horizontal rows of nozzles (57, 57', 58, 58') arranged transversely in the columns (53, 53', 54, 54') above and below the strip; the protective atmosphere reaches each pair of rows (57, 59') via separate feed pipes (50, 50', 59, 59'). 57', 58, 58'), and the nozzle is preferably directed in a direction substantially perpendicular to the upper and lower surfaces of the strip. 根據請求項1的設備，其中進給該保護性氣氛至該精軋機(3)的該系統包括在二完工站台(3.1、3.2…3.7)之間的空間中的至少二對平行水平列噴嘴(63、63’、64、64’)，其橫向配置在圈繞器(51)的上游和下游而在該鋼帶之上和之下；該保護性氣氛經由個別對的進給管(61、61’、62、62’)而抵達該對橫列(63、63’、64、64’)的每一者，該噴嘴較佳於垂直平面中傾斜而指向相鄰的完工站台(3.1、3.2…3.7)。Plant according to claim 1, wherein the system of feeding the protective atmosphere to the finishing mill (3) comprises at least two pairs of parallel horizontal rows of nozzles ( 63, 63', 64, 64'), which are transversely arranged upstream and downstream of the coiler (51) and above and below the strip; the protective atmosphere passes through individual pairs of feed pipes (61, 61', 62, 62') to each of the pair of courses (63, 63', 64, 64'), the nozzles are preferably slanted in the vertical plane and directed toward the adjacent completion station (3.1, 3.2 ...3.7). 根據請求項10的設備，其中該列噴嘴被包在由一對上轉板(55、55’；65、65’)和一對下轉板(56、56’；66、66’)所形成的腔室裡，該轉板塑形成允許該鋼帶通過該腔室，並且該轉板可繞著末端銷旋轉以允許該腔室開啟。Apparatus according to claim 10, wherein the row of nozzles is enclosed by a pair of upper turning plates (55, 55'; 65, 65') and a pair of lower turning plates (56, 56'; 66, 66') In the chamber, the turntable is shaped to allow the strip to pass through the chamber, and the turntable is rotatable about an end pin to allow the chamber to open. 根據請求項13的設備，其中進給該保護性氣氛的該系統進一步包含至少二平行水平列噴嘴(57、57’、58、58’)，其橫向配置在該縱列(53、53’、54、54’)的每一者而在該鋼帶之上和之下；該保護性氣氛經由個別的進給管(50、50’、59、59’)而抵達每對橫列(57、57’、58、58’)，且該噴嘴較佳指向於實質垂直於該鋼帶之該上和下表面的方向，而該橫列噴嘴(57、57’、58、58’；63、63’、64、64’)則安裝在該轉板(55、55’；56、56’；65、65’；66、66’)上。The apparatus according to claim 13, wherein the system for feeding the protective atmosphere further comprises at least two parallel horizontal rows of nozzles (57, 57', 58, 58') arranged transversely in the columns (53, 53', 54, 54') above and below the strip; the protective atmosphere reaches each pair of rows (57, 59') via separate feed pipes (50, 50', 59, 59'). 57', 58, 58'), and the nozzles are preferably directed in a direction substantially perpendicular to the upper and lower surfaces of the strip, while the rows of nozzles (57, 57', 58, 58'; 63, 63 ', 64, 64') are installed on the rotating plate (55, 55'; 56, 56'; 65, 65'; 66, 66'). 根據請求項13的設備，其中進給該保護性氣氛至該精軋機(3)的該系統包括在二完工站台(3.1、3.2…3.7)之間的空間中的至少二對平行水平列噴嘴(63、63’、64、64’)，其橫向配置在圈繞器(51)的上游和下游而在該鋼帶之上和之下；該保護性氣氛經由個別的對進給管(61、61’、62、62’)而抵達該對橫列(63、63’、64、64’)的每一者，該噴嘴較佳於該垂直平面中傾斜而指向相鄰的完工站台(3.1、3.2…3.7)，並且該橫列噴嘴(57、57’、58、58’；63、63’、64、64’)安裝在該轉板(55、55’；56、56’；65、65’；66、66’)上。Plant according to claim 13, wherein the system of feeding the protective atmosphere to the finishing mill (3) comprises at least two pairs of parallel horizontal rows of nozzles ( 63, 63', 64, 64'), which are transversely arranged upstream and downstream of the coiler (51) and above and below the strip; the protective atmosphere passes through individual pairs of feed pipes (61, 61', 62, 62') to each of the pair of courses (63, 63', 64, 64'), the nozzles are preferably inclined in the vertical plane and directed toward the adjacent completion station (3.1, 3.2...3.7), and the rows of nozzles (57, 57', 58, 58'; 63, 63', 64, 64') are installed on the rotating plates (55, 55'; 56, 56'; 65, 65 '; 66, 66'). 根據請求項1的設備，其中該粗軋機(2)的該第一站台(2.1)是設計用於板塊厚度減低≤20%的站台。The plant according to claim 1, wherein the first station (2.1) of the roughing mill (2) is a station designed for slab thickness reduction ≤ 20%. 根據請求項1的設備，其中在該粗軋機(2)之後，該設備進一步包括用於生產和移除粗糙片的緊急系統，其依序包括擺錘式剪機(15)、用於抽取金屬片的堆疊機(16)、旋轉式剪機(17)、圈繞機(18)。Plant according to claim 1, wherein after the roughing mill (2), the plant further comprises an emergency system for producing and removing rough flakes, which in turn comprises a pendulum shear (15), for extracting metal Sheet stacking machine (16), rotary shearing machine (17), coil winding machine (18). 根據請求項1的設備，其中在該第一感應爐(6.1)和該第二水除鏽器(8)之間，該設備進一步包括機械碎鏽裝置(7)，其由交替地配置在該轉移棒進給線之上和之下的至少三輥所形成，並且配置的高度以致引起該轉移棒表面的塑性延展而造成剛性鏽層破裂。The equipment according to claim 1, wherein between the first induction furnace (6.1) and the second water descaling device (8), the equipment further comprises a mechanical descaling device (7), which is alternately arranged on the At least three rolls above and below the transfer rod feed line are formed and arranged at a height such as to cause plastic extension of the transfer rod surface causing rupture of the rigid rust layer. 根據請求項1的設備，其中在該精軋機(3)和該冷卻站(12)之間，該設備進一步依序包括進一步冷卻站(12’)、進一步切割站(10’)、及進一步捲繞站(9；11)，該進一步冷卻站(12’)較佳能夠進行超快冷卻。The plant according to claim 1, wherein between the finishing mill (3) and the cooling station (12), the plant further comprises in sequence a further cooling station (12'), a further cutting station (10'), and a further coil Around the station (9; 11), the further cooling station (12') is preferably capable of ultrafast cooling. 根據請求項19的設備，其中在每個冷卻站(12；12’)和每個切割站(10；10’)之間，該設備進一步包括機械除鏽器(14；14’)，其使用對轉刷或研磨性泥漿噴射。The apparatus according to claim 19, wherein between each cooling station (12; 12') and each cutting station (10; 10'), the apparatus further comprises a mechanical rust remover (14; 14') which uses Counter rotating brush or abrasive slurry jet. 根據請求項1的設備，其中它進一步包括抗腐蝕塗佈線(13)，其直接位在該最終捲繞站(9；11)之後，如此則有可能施加該塗佈至該鋼帶而不必首先將它捲繞成圈捲。Plant according to claim 1, wherein it further comprises an anti-corrosion coating line (13), which is located directly after the final winding station (9; 11), so that it is possible to apply the coating to the strip without having to First wind it into a coil. 根據請求項1的設備，其中它進一步包括用於控制和管理被處理材料之溫度的系統，其操作上連接至電磁煞車，該電磁煞車插在形成該連續鑄造裝置(1)之一部分的鑄錠模中；並且該系統連接至插在該模之銅板中的熱偶且連接至沿著該設備所配置的熱掃描器，該熱掃描器較佳而言配置在以下的出口：該連續鑄造裝置(1)、該粗軋機(2)、該第一感應爐(6.1)、該第二水除鏽器(8)、該第二感應爐(6.2)、該精軋機(3)、及該冷卻站(12、12’)；該控制系統也在操作上連接至該設備的主動地影響被處理材料之該溫度的所有其他組件，包括在加熱(4.1、4.2、6.1、6.2)和冷卻(5.2、7、8.2、12、12’、14、14’)中。Apparatus according to claim 1, wherein it further comprises a system for controlling and managing the temperature of the material being processed, which is operatively connected to an electromagnetic brake inserted in the ingot forming part of the continuous casting device (1) and the system is connected to a thermocouple inserted in the copper plate of the mold and to a thermal scanner arranged along the apparatus, preferably at the outlet of the continuous casting apparatus (1), the rough rolling mill (2), the first induction furnace (6.1), the second water rust remover (8), the second induction furnace (6.2), the finishing mill (3), and the cooling station (12, 12'); the control system is also operationally connected to all other components of the plant that actively affect the temperature of the material being processed, including in heating (4.1, 4.2, 6.1, 6.2) and cooling (5.2 , 7, 8.2, 12, 12', 14, 14'). 一種藉由請求項1至22中任一項的設備而連續生產最小厚度0.3毫米之熱軋鋼帶的方法，其包括以下順序的步驟： (a)連續鑄造(1)厚度40~150毫米的薄或中等板塊； (b)以3~5道粗軋(2)來獲得轉移棒； (c)第一感應式加熱(6.1)該轉移棒； (d)水除鏽(8.2)； (e)第二感應式加熱(6.2)該轉移棒； (f)以5~7道精軋(3)來獲得該鋼帶； (g)控制該鋼帶的冷卻(12；12’)；以及 (h)切割(10；10’)該鋼帶且將它捲繞(9；11)成圈捲， 其中至少步驟(e)和(f)(至少直到該第三道為止)是在稍微氧化性、惰性或稍微還原性的保護性氣氛中進行，並且較佳於該捲繞部分中的步驟(g)和(h)也是； 該方法的特徵在於在步驟(a)和(b)之間提供有以下進一步的步驟： (a’)感應式加熱(4.1)該板塊的該邊緣； (a”)感應式加熱(4.2)該板塊其餘的表面； (a’”)水除鏽(5.2)。 A method for continuously producing a hot-rolled steel strip with a minimum thickness of 0.3 mm by using the equipment of any one of claims 1 to 22, comprising the steps in the following order: (a) continuous casting (1) thin or medium slabs with a thickness of 40 to 150 mm; (b) obtain the transfer rod with 3~5 rough rolling (2); (c) first inductively heating (6.1) the transfer rod; (d) water rust removal (8.2); (e) second induction heating (6.2) of the transfer rod; (f) obtain the steel strip with 5-7 passes of finishing rolling (3); (g) controlling the cooling (12; 12') of the strip; and (h) cutting (10; 10') the strip and winding (9; 11) it into coils, wherein at least steps (e) and (f) (at least up to the third pass) are carried out in a slightly oxidizing, inert or slightly reducing protective atmosphere, and are preferably performed over step (g) in the winding section ) and (h) are also; The method is characterized in that the following further steps are provided between steps (a) and (b): (a') inductively heating (4.1) the edge of the panel; (a") induction heating (4.2) the remaining surface of the panel; (a’”) Descaling with water (5.2). 根據請求項23的方法，其中步驟(h)是由以下所取代：將該鋼帶直接通往施加保護性塗佈(13)的步驟而後續有最終的捲繞。A method according to claim 23, wherein step (h) is replaced by passing the strip directly to the step of applying a protective coating (13) followed by final winding. 根據請求項23的方法，其中於步驟(b)，該粗軋(2)的該第一道(2.1)導致該板塊厚度減低≤20%。The method according to claim 23, wherein in step (b), the first pass (2.1) of the rough rolling (2) results in a thickness reduction of ≤ 20% of the slab. 根據請求項23的方法，其中在步驟(c)和(d)之間提供有進一步步驟(c’)：機械破裂(7)該鏽。A method according to claim 23, wherein between steps (c) and (d) there is provided a further step (c') of mechanically disrupting (7) the rust. 根據請求項23的方法，其中在步驟(g)和(h)之間提供有進一步步驟(g’)：機械除鏽(14；14’)。A method according to claim 23, wherein between steps (g) and (h) there is provided a further step (g'): mechanical descaling (14; 14'). 根據請求項23的方法，其中在步驟(b)和(c)之間提供有進一步步驟：萬一該設備在該粗軋(2)下游的部分有問題，則生產和移除粗糙片(15、16)。A method according to claim 23, wherein a further step is provided between steps (b) and (c): producing and removing rough flakes (15 , 16). 根據請求項23的方法，其中步驟(a’”)是以小於150巴的水壓來進行，以及∕或者步驟(d)是以高達380巴的水壓來進行。The method according to claim 23, wherein step (a'") is carried out with a water pressure of less than 150 bar, and/or step (d) is carried out with a water pressure of up to 380 bar. 根據請求項23的方法，其中步驟(e)是以最終溫度來進行以致確保步驟(f)是完全在沃斯田鐵領域中進行。The method according to claim 23, wherein step (e) is carried out at a final temperature so as to ensure that step (f) is carried out entirely in the Worth field. 根據請求項23的方法，其中步驟(a’)是在離該板塊之每個邊緣高達150毫米的帶上進行以及∕或者導致該帶的溫度增加高達120℃。A method according to claim 23, wherein step (a') is carried out on a belt up to 150 mm from each edge of the panel and/or causes the temperature of the belt to increase by up to 120°C. 根據請求項23的方法，其中步驟(h)後面接著是步驟(i)：在含有水或稍微氧化性水溶液的水槽中液體冷卻該圈捲。A method according to claim 23, wherein step (h) is followed by step (i) of liquid cooling the coil in a tank containing water or a slightly oxidizing aqueous solution.