WO2009036665A1 - Method for continuous casting, rolling intermediate and thin sheet - Google Patents

Method for continuous casting, rolling intermediate and thin sheet Download PDF

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Publication number
WO2009036665A1
WO2009036665A1 PCT/CN2008/071378 CN2008071378W WO2009036665A1 WO 2009036665 A1 WO2009036665 A1 WO 2009036665A1 CN 2008071378 W CN2008071378 W CN 2008071378W WO 2009036665 A1 WO2009036665 A1 WO 2009036665A1
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WIPO (PCT)
Prior art keywords
rolling
continuous casting
thin
slab
producing
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PCT/CN2008/071378
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French (fr)
Chinese (zh)
Inventor
Zhonghua Wu
Kunyong Lv
Xiaohong Feng
Bo Huang
Jinghua Mao
Xiaolin Ding
Xiaofei Li
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Cisdi Engineering Co., Ltd.
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Priority to CN2007100927205A priority Critical patent/CN101391264B/en
Priority to CN200710092720.5 priority
Application filed by Cisdi Engineering Co., Ltd. filed Critical Cisdi Engineering Co., Ltd.
Publication of WO2009036665A1 publication Critical patent/WO2009036665A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting

Abstract

A method for continuous casting, rolling intermediate and thin sheet includes: continuous casting the sheet, cutting the sheet, heating the cut sheet to the given tapping temperature, transferring the sheet through the roller way, descaling iron scale on the sheet surface with high-pressure water, rolling the sheet, flow cooling the sheet to the goal temperature, coiling the cooled sheet, thereby obtaining the favorable product. The method has compact technical flow and high productivity.

Description

薄中板连铸连轧方法 本申请要求于 2007 年 9 月 19 日提交中国专利局、 申请号为 200710092720.5、 发明名称为 "一种薄中板连铸连轧生产的工艺方法" 的中国 专利申请的优先权, 其全部内容通过引用结合在本申请中。  Thin medium plate continuous casting and rolling method The present application claims to be Chinese patent application filed on September 19, 2007, the Chinese Patent Office, application number 200710092720.5, and the invention name is "a process method for thin and medium plate continuous casting and rolling production" Priority is hereby incorporated by reference in its entirety.
技术领域 Technical field
本发明属于成型技术领域, 涉及一种板材连铸连轧生产的工艺方法,特别 涉及一种薄中板连铸连轧生产的工艺方法, 即高效薄中板生产工艺方法 ETPP ( Effective Thin Plate Process )。  The invention belongs to the field of molding technology, and relates to a process method for continuous casting and rolling production of sheet metal, in particular to a process method for continuous casting and rolling production of thin and medium plates, namely high-efficiency thin plate production process ETPP (Effective Thin Plate Process) ).
背景技术 Background technique
我国近几年中厚板生产有了长足发展, 但仍然满足不了国民经济发展需 要, 使我国热轧宽带钢轧机 50 %以上的生产能力用于生产中厚板, 投资巨大 的精轧机多数机架空过或小压下量轧制,造成很大浪费。 而中厚板轧机坯料厚 度一般在 180 ~ 300mm之间, 轧制薄中板道次多、 产量低, 生产难度较大, 因 此寻求一种经济实用的薄规格中板生产工艺部分替代热轧机和中厚板轧机生 产薄规格中板是十分必要的。  In recent years, China's medium and heavy plate production has made great progress, but it still can't meet the needs of national economic development. It makes more than 50% of the production capacity of China's hot-rolled wide strip steel rolling mills for the production of medium and heavy plates. Rolling through a small or small reduction causes a lot of waste. The thickness of the plate mill is generally between 180 mm and 300 mm. The rolling thin plate has many passes, low output and difficult production. Therefore, an economical and practical thin gauge medium plate production process is partially replaced by hot rolling mill. It is necessary to produce thin gauge medium plates with plate mills.
发明内容 Summary of the invention
本发明的目的在于提出一种薄板坯或中厚板坯直接连铸连轧生产高强度 薄而宽的热轧中板的工艺方法。 能较大幅度降低燃料消耗, 金属消耗, 和烟气 的排放。 本发明工艺流程紧凑, 设备组成简单, 生产效率高, 投资省。 工艺流 程可以运用于新建或改造的中厚板轧机的建设。  The object of the present invention is to provide a process for producing a high-strength, thin and wide hot-rolled intermediate plate by direct continuous casting and rolling of a thin slab or a medium-thick slab. It can greatly reduce fuel consumption, metal consumption, and smoke emissions. The invention has the advantages of compact process, simple equipment composition, high production efficiency and low investment. The process can be applied to the construction of new or modified plate mills.
连铸连轧工艺能较大幅度降低燃料消耗, 金属消耗, 和烟气的排放。 根据 国内外已投产多条薄板坯连铸连轧生产线实践经验证明:由于薄板坯连铸结晶 器及二冷区的快速冷却、 柱状晶短、 晶粒细化而在随后直接轧制中取消了 a-δ 相变温度区的中间冷却而使产品组织得到弥散硬化,从而使产品的机械性能强 化, 十分有利于生产高强度钢板, 在不添加任何合金元素条件下可生产强度达 600MPa高强度低碳细晶粒中板; 适当添加一些微合金或稀土元素可生产强度 达 800 - lOOOMPa低合金高强度中板。  Continuous casting and rolling processes can significantly reduce fuel consumption, metal consumption, and smoke emissions. According to the practical experience of many thin slab continuous casting and rolling production lines that have been put into production at home and abroad, it is proved that the rapid cooling of the thin slab continuous casting mold and the secondary cooling zone, the columnar crystal short, and the grain refinement are eliminated in the subsequent direct rolling. The intermediate cooling of the a-δ phase transition temperature zone causes the product structure to be dispersed and hardened, thereby strengthening the mechanical properties of the product, which is very beneficial for the production of high-strength steel sheets, and can produce high strength and low strength of 600 MPa without adding any alloying elements. Carbon fine grain medium plate; appropriate addition of some microalloys or rare earth elements can produce low alloy high strength medium plate with strength of 800-100 MPa.
根据炉卷轧机釆用卷轧法生产薄规格中板的经验证明,带张力轧制比常规 中板生产工艺的产品板型、精度及纵横向性能均有很大改善。 因此釆用连轧法 带张力轧制生产薄而宽中板有着很大优越性。 According to the experience of the production of thin gauge intermediate plates by the coiling mill, the strip-type rolling has greatly improved the plate shape, precision and longitudinal and transverse properties of the conventional medium-plate production process. Therefore, the continuous rolling method The production of thin and wide medium plates with tension rolling has great advantages.
至今世界上所有薄板坯连铸连轧生产线均用于生产薄带钢为主,尚没有用 于生产薄而宽的中厚板的先例,本发明将薄板坯或中薄板坯连铸连轧技术应用 于中厚板生产应是世界首创。  So far, all the thin slab continuous casting and rolling production lines in the world are mainly used for the production of thin strip steel. There is no precedent for producing thin and wide medium and thick plates. The present invention will be used for continuous casting and rolling of thin slab or medium and thin slab. It should be the world's first application in the production of medium and heavy plates.
该方法方案一为釆用平板形结晶器的直弧型 2流 2700/3200 mm宽的板坯 连铸机, 结晶器出口厚度为 150mm, 经液芯压下至 135mm厚的连铸坯, 经过 火焰切割后切成定尺坯 ,两流板坯连铸机经过步进梁式加热炉进行并流并将板 坯温度加热到 1100 °C ~ 1200 °C。 板坯经过高压水除鳞后由一台可逆式粗轧机 轧三道次制成 25mm ~ 50mm的中间坯, 经过切头尾、 高压水除鳞然后经 3架 精轧机轧制成 4 ~ 12mm厚并经层流冷却装置冷却后由卷取机卷取成卷, 冷却 至常温后根据用户要求可成卷交货也可送至横切机组开卷切成单张定尺中板 后交货;  The first method of the method is a straight-arc type 2-flow 2700/3200 mm wide slab continuous casting machine using a flat-plate crystallizer. The thickness of the crystallizer outlet is 150 mm, and the liquid crystal core is pressed down to a 135 mm thick continuous casting billet. After the flame is cut, it is cut into a fixed length blank, and the two-flow slab continuous casting machine is cocurrently flowed through a walking beam type heating furnace and the slab temperature is heated to 1100 ° C ~ 1200 ° C. The slab is descaled by high-pressure water and then rolled into a 25mm ~ 50mm intermediate billet by a reversible roughing mill. After descaling through the cutting head and high pressure water, it is rolled into 4 ~ 12mm thick by three finishing mills. After being cooled by the laminar flow cooling device, it is taken up by a coiler and rolled into a roll. After cooling to normal temperature, it can be delivered in rolls according to the user's requirements. It can also be sent to the cross-cutting unit for unwinding and cutting into a single-length medium-sized board for delivery.
该方法方案二为釆用 50 ~ 70mm厚的连铸坯,经过火焰切割或摆动剪剪切 成定尺坯,两流板坯连铸机经过步进梁式加热炉或辊底式加热炉进行并流并将 板坯温度加热到 1050°C ~ 1150°C。经过高压水除鳞后由 3架精轧机轧制成 5 ~ 12mm厚并经层流冷却装置冷却后由卷取机卷取成卷, 冷却至常温后根据用户 要求可成卷交货也可送至横切机组开卷切成单张定尺中板后交货。  The second method of the method is to use a 50 to 70 mm thick continuous casting billet, which is cut into a fixed length blank by flame cutting or oscillating shearing, and the two-flow slab continuous casting machine is subjected to a walking beam type heating furnace or a roller bottom type heating furnace. Parallel and heat the slab temperature to 1050 ° C ~ 1150 ° C. After descaling by high pressure water, it is rolled into 5 ~ 12mm thick by 3 finishing mills and cooled by laminar cooling device. It is taken up by a coiler and rolled into a roll. After cooling to normal temperature, it can be delivered in rolls according to user requirements. After the cross-cutting unit is unrolled and cut into individual sheets, the delivery is carried out.
该方法具有以下工艺特点:  The method has the following process characteristics:
1) 由于釆用了 2流 2700/3200 mm宽的板坯连铸机,显著地提高了连铸机 的生产能力, 整个生产线的生产能力可以达到 300万吨, 可以充分发挥轧制线 的生产能力; 若分期建设, 先上一流年生产能力可以达到 150万吨;  1) Due to the use of a 2-flow 2700/3200 mm wide slab caster, the production capacity of the continuous casting machine is significantly improved, and the production capacity of the entire production line can reach 3 million tons, which can fully utilize the production of the rolling line. Capacity; if it is built in stages, the first-class annual production capacity can reach 1.5 million tons;
2) 节能:燃料消耗约为 0.58GJ/t钢,而常规中厚板轧机燃料消耗为 1.36GJ/t 钢, 节能 50 ~ 60 %、 燃料消耗的降低意味着 C02、 NOx及烟气排放量亦相应 减少 50 ~ 60 %;  2) Energy saving: fuel consumption is about 0.58GJ/t steel, while conventional medium plate mill fuel consumption is 1.36GJ/t steel, energy saving is 50 ~ 60%, and fuel consumption reduction means CO2, NOx and flue gas emissions. A corresponding reduction of 50 ~ 60%;
3) 成材率高: 由于釆用成卷生产,成材率比常规中板生产工艺高 5 ~ 6 % , 金属消耗的降低就意味着社会资源的节约;  3) High yield: Since the production rate is 5 to 6 % higher than the conventional medium plate production process, the reduction of metal consumption means the saving of social resources;
4) 适宜于生产细晶粒高强度钢, 和常规工艺相比, 产品机械性能高, 强 度可提高 2 ~ 3个等级;  4) It is suitable for the production of fine-grained high-strength steel. Compared with the conventional process, the product has high mechanical properties and can be improved in strength by 2 to 3 grades;
5) 生产周期短, 较易实现一周内交货。 生产灵活, 可根据用户要求成单 张板或成卷交货; 5) The production cycle is short, and it is easier to achieve delivery within one week. Flexible production, can be ordered according to user requirements Delivery of sheets or rolls;
6) 布置紧凑, 生产线长度短, 步进梁式加热炉相对错开布置, 由连铸大 包回转台至 2号卷取机中心线长度约 300~400m,厚板轧机生产线长度约 600 ~ 800m。 从而可大大减少厂房面积和总图占地面积, 降低建设投资;  6) The arrangement is compact, the length of the production line is short, and the walking beam type heating furnace is relatively staggered. The length of the center line of the continuous casting large package rotary table to the No. 2 coiler is about 300~400m, and the length of the thick plate rolling mill production line is about 600 ~ 800m. Thereby, the plant area and the total floor area can be greatly reduced, and the construction investment can be reduced;
7)投资省, 吨钢投资比常规中厚板厂低;  7) Investment province, investment in tons of steel is lower than conventional plate mills;
8) 生产成本低, 由于能耗低, 成材率高, 投资低, 劳动定员少等原因, 生产成本将比常规中厚板厂低;  8) The production cost is low, and the production cost will be lower than that of the conventional plate mill due to low energy consumption, high yield, low investment, and low labor quota;
9) 效益好, 由于可大批量生产售价较高的薄规格中厚板, 赢利空间大; 10)预留半无头轧制中板的可能,待取得经验后增设高速飞剪即可实现半无头 轧制。  9) Good efficiency, because of the large-volume production of thin gauge plate with high price, the profit margin is large; 10) The possibility of half-headless rolling of the middle plate is reserved, and the high-speed flying shear can be realized after the experience is gained. Semi-headless rolling.
附图说明 DRAWINGS
图 la为 ETTP—方案工艺方法立面示意图;  Figure la is a schematic diagram of the elevation of the ETTP-scheme process;
图 lb为 ETTP—方案工艺方法平面示意图;  Figure lb is a schematic plan view of the ETTP-scheme process;
图 2a为 ETTP二方案工艺方法立面示意图;  Figure 2a is a schematic view of the elevation of the ETTP two process;
图 2b为 ETTP二方案工艺方法平面示意图;  Figure 2b is a schematic plan view of the ETTP two solution process;
图中: 件 1为连铸机中间包, 件 2为连铸机, 件 3为火焰切割机, 件 4 为步进梁式加热炉, 件 5为高压水除鳞机, 件 6为四辊粗轧机, 件 7为切头飞 剪,件 8为精轧高压水除鳞机,件 9为 FrF3精轧机组,件 10为层流冷却装置, 件 11为卷取机,件 12为摆动剪,件 13为辊底式加热炉,件 14为液压事故剪。 具体实施方式 In the figure: piece 1 is the continuous casting machine tundish, piece 2 is the continuous casting machine, piece 3 is the flame cutting machine, piece 4 is the walking beam type heating furnace, piece 5 is the high pressure water descaling machine, piece 6 is the four roll Rough rolling mill, part 7 is cutting head flying shear, part 8 is finishing rolling high pressure water descaling machine, part 9 is F r F 3 finishing rolling unit, piece 10 is laminar cooling device, piece 11 is coiling machine, piece 12 For the oscillating shear, the piece 13 is a roller bottom type heating furnace, and the piece 14 is a hydraulic accident shear. detailed description
下面结合附图对本发明作进一步的说明:  The present invention will be further described below in conjunction with the accompanying drawings:
如图 1所示: 合格的钢水通过单流 2700/3200 mm宽的板坯连铸机, 连铸 机中间包 1浇铸到连铸机 2平板结晶器中, 铸造成为 150mm的热铸坯并经液 芯压下到 135mm。 根据钢种不同, 由连铸机 2铸出的板坯以不同的拉坯速度 拉出板坯, 当铸坯长度达到设定的长度时, 由连铸机 2 出口的火焰切割机 3 进行分切, 剪切后的铸坯立即进行升速送至步进梁式加热炉 4入口, 然后由装 钢机送入步进梁式加热炉 4。 步进梁式加热炉 4相对错开布置, 其入炉辊道分 别与两流连铸机 2的出坯辊道直接连接。板坯在步进梁式加热炉 4内加热到设 定的出炉温度 1100 - 1200 °C后, 用出钢机将板坯托出,放到步进梁式加热炉 4 出炉辊道上。 出炉板坯经辊道输送到高压水除鳞机 5 , 用高压水清除板坯表面 氧化铁皮。 除鳞后板坯进入立辊轧机轧制, 以精确控制带钢宽度和提高、 改善 带钢边部质量。然后再经四辊粗轧机 6进行可逆三道次轧制后,轧成 25-50mm 厚的中间带坯。粗轧后的中间带坯经切头飞剪 7切除头部后, 进入精轧高压水 除鳞机 8, 由高压水清除再生氧化铁皮; 然后送入?1^3精轧机组 9轧制, 四 辊粗轧机 6与 FrF3精轧机组 9形成连轧关系 , 中间带坯经过 FrF3精轧机组 9 轧制成 4-12mm的板带。 FrF3精轧机组 9轧制后的成品板带经过层流冷却装 置 10进行层流冷却, 将板带冷却到目标温度(一般为 550-780°C )后经过卷取 机 11进行卷取。 轧制成品可成卷交货也可由横切机组切成单张板、 垛交货。 As shown in Figure 1: Qualified molten steel is cast into a continuous casting machine 2 flat crystallizer by a single-flow 2700/3200 mm wide slab continuous casting machine, cast into a 150 mm hot slab and The liquid core is pressed down to 135mm. Depending on the type of steel, the slab cast by the continuous casting machine 2 pulls out the slab at different drawing speeds. When the length of the slab reaches the set length, it is divided by the flame cutter 3 at the exit of the continuous casting machine 2. After cutting, the cut slab is immediately sent to the entrance of the walking beam type heating furnace 4 at a rising speed, and then sent to the walking beam type heating furnace 4 by a steel loader. The walking beam type heating furnace 4 is relatively staggered, and the inlet roller path is directly connected to the blanking roller path of the two-pass continuous casting machine 2, respectively. After the slab is heated in the walking beam type heating furnace 4 to a set outlet temperature of 1100 - 1200 °C, the slab is taken out by a tapping machine and placed in a walking beam type heating furnace 4 Released on the roller table. The slab is conveyed to the high-pressure water descaler 5 via a roller conveyor, and the surface of the slab is removed by high-pressure water. After descaling, the slab is rolled into a vertical rolling mill to precisely control the strip width and improve and improve the quality of the strip edge. Then, after reversible three-pass rolling by the four-roll roughing mill 6, it is rolled into a 25-50 mm thick intermediate strip. After the rough rolling, the intermediate strip blank is cut off by the cutting head flying shears 7 and then enters the finishing rolling high pressure water descaling machine 8, and the regenerated iron oxide scale is removed by the high pressure water; 1 ^ 3 finishing mill 9 rolling, four-roll roughing mill 6 and F r F 3 finishing mill 9 form a continuous rolling relationship, the intermediate strip is rolled into a 4-12 mm strip by F r F 3 finishing mill 9 . The finished strip of the F r F 3 finishing train 9 is subjected to laminar cooling by a laminar cooling device 10, and the strip is cooled to a target temperature (generally 550-780 ° C) and then wound by a coiler 11 take. The rolled product can be delivered in rolls or cut into individual sheets by a cross-cutting unit.
如图 2所示: 合格的钢水通过单流 2700/3200 mm宽的板坯连铸机, 连铸 机中间包 1浇铸到连铸机 2—漏到底的凸透镜型结晶器中,铸造成为 70-90mm 的热铸坯并经液芯压下到 50-70mm。 根据钢种不同, 由连铸机 2铸出的板坯 以不同的拉坯速度拉出板坯, 当铸坯长度达到设定的长度时, 由连铸机 2出口 的摆动剪 12进行分切, 剪切后的铸坯送入辊底式加热炉 13。辊底式加热炉 13 炉下辊道分别与两流连铸机 2的出坯辊道直接连接。 板坯在辊底式加热炉 13 内加热到设定的出炉温度 1050 - 1150°C后由辊道送出, 辊底炉后设液压事故 剪。 出炉板坯经辊道输送到高压除鳞机 5 , 用高压水清除板坯表面氧化铁皮。 除鳞后板坯进入 FrF3精轧机组 9轧制, 将板坯轧制成 5-12mm的带钢。 FrF3 精轧机组 9轧制后的成品板带经过层流冷却装置 10进行层流冷却, 将板带冷 却到目标温度(一般为 550-780 °C )后经过卷取机 11进行卷取。 轧制成品可成 卷交货也可由横切机组切成单张板、 垛交货。 As shown in Figure 2: Qualified molten steel is cast into a single-flow 2700/3200 mm wide slab continuous casting machine, and the continuous casting machine tundish 1 is cast into a continuous casting machine 2-to-bottom convex lens type crystallizer, casting into 70- The 90mm hot billet is pressed through the liquid core to 50-70mm. Depending on the type of steel, the slab cast by the continuous casting machine 2 pulls the slab at different drawing speeds. When the length of the slab reaches the set length, the slash 12 is cut by the exit of the continuous casting machine 2 The cut slab is sent to the roller hearth furnace 13. Roller bottom furnace 13 The down rolls are directly connected to the take-up rolls of the two-pass continuous casting machine 2, respectively. The slab is heated in the roller bottom type heating furnace 13 to a set discharge temperature of 1050 - 1150 ° C, and then sent out by a roller conveyor, and a hydraulic accident shear is arranged after the roller bottom furnace. The slab is conveyed to the high-pressure descaler 5 via a roller conveyor, and the surface of the slab is removed with high-pressure water. After descaling, the slab is rolled into the F r F 3 finishing train 9 and the slab is rolled into a 5-12 mm strip. The finished strip of the F r F 3 finishing train 9 is subjected to laminar cooling by a laminar cooling device 10, and the strip is cooled to a target temperature (generally 550-780 ° C) and then wound by a coiler 11 take. The rolled product can be delivered in rolls or cut into individual sheets by a cross-cutting unit.
本发明的设备有:  The device of the invention has:
1) 单流薄板坯连铸机 2台, 釆用平板结晶器(一方案), 一漏到底的凸透 镜型结晶器(二方案), 保护浇铸、 液压振动、 釆用液芯压下、 在线调宽、 带 液压升降、 称量大包回转台、 漏钢预 ·¾、 液位自动控制、 下渣检测系统、 二冷 却动态自动控制等成熟新技术;  1) 2 single-flow thin slab continuous casting machines, flat plate crystallizer (one solution), a convex lens type crystallizer that leaks to the bottom (two solutions), protection casting, hydraulic vibration, liquid core pressing, on-line adjustment Wide, with hydraulic lifting, weighing large package turret, steel leakage pre-3⁄4, liquid level automatic control, slag detection system, two cooling dynamic automatic control and other mature new technologies;
2) 在连铸机后釆用火焰切割机(一方案), 液压摆动剪 2台 (二方案); 2) After the continuous casting machine, use a flame cutting machine (one solution) and two hydraulic swinging shears (two schemes);
3)一方案釆用相向布置的步进梁式加热炉实现并流和緩冲, 减少了中间 环节, 减少了设备配置, 大大地缩短了轧制线的长度, 保证了轧制线 20分钟 的停机緩冲时间; 二方案釆用辊底式加热炉 2座实现并流和緩冲;3) One solution uses the oppositely arranged walking beam furnace to achieve parallel flow and buffering, reducing intermediate links, reducing equipment configuration, greatly shortening the length of the rolling line, and ensuring the rolling line for 20 minutes. The shutdown buffer time; the second scheme uses two roller-type heating furnaces to achieve parallel flow and buffer;
4) 一方案釆用高压水除鳞机 2台; 二方案釆用高压水除鳞机 1台;4) One plan uses 2 sets of high-pressure water descaling machine; 2 sets 1 set of high-pressure water descaling machine;
5) 一方案釆用强力、 高速的四辊可逆式粗轧机轧制, 速度不受连铸机拉 速的限制,保证了粗轧机的大压下量和高速轧制; 粗轧后设转鼓式飞剪切头切 尾; 二方案无粗轧机, 辊底炉后设液压事故剪; 5) One solution is to roll with a strong, high-speed four-roll reversible roughing mill. The speed is not limited by the continuous casting machine's drawing speed, which ensures the large reduction of the roughing mill and high-speed rolling. The type of flying shear head is cut; the second scheme has no rough rolling mill, and the hydraulic hammer is arranged after the roller bottom furnace;
6) 三架四辊式大压下量不可逆式精轧机。 釆用液压 AGC、 工作辊弯辊及 窜辊、 快速换辊、 全交流电机传动等新技术, 无需升速轧制及复杂的板型控制 系统。  6) Three four-roller large reduction non-reversible finishing mills. New technologies such as hydraulic AGC, work roll bending and nip rolls, quick roll change, and full AC motor drive eliminate the need for up-speed rolling and complex plate control systems.
7 ) 带高位水箱层流冷却装置 1套。  7) 1 set of laminar cooling device with high water tank.
8 ) 高速飞剪 1台 (预留)。  8) High-speed flying shears 1 set (reserved).
9 )地下卷取机 2台。  9) 2 underground coilers.
10 )钢卷运输系统 1套。  10) 1 set of steel coil transportation system.
11 )横切机组 3— 4组。  11) Cross-cutting units 3-4.
本发明工艺流程紧凑, 设备组成简单, 生产效率高, 投资省。 工艺流程可 以运用于新建或改造的中厚板轧机的建设。  The invention has the advantages of compact process, simple equipment composition, high production efficiency and low investment. The process can be applied to the construction of new or modified plate mills.

Claims

权 利 要 求 Rights request
1、 一种薄中板连铸连轧生产的工艺方法, 由连铸机和轧钢机组成, 其特 征在于: 在连铸机后将铸板坯分切, 并将分切后的板坯加热到设定的出炉温度 后由辊道送出, 然后用高压水清除板坯表面氧化铁皮后进行轧制,再将其经层 流冷却到目标温度后进行卷取,轧制成品可成卷交货也可由横切机组切成单张 板、 垛交货。  1. A process for the production of thin and medium-plate continuous casting and rolling, consisting of a continuous casting machine and a rolling mill, characterized in that: the casting slab is cut after the continuous casting machine, and the slab after cutting is heated After being set to the tapping temperature, it is sent out by the roller conveyor, and then the iron oxide scale on the surface of the slab is removed by high-pressure water, and then rolled, and then cooled by laminar flow to the target temperature, and then coiled, and the rolled product can be delivered in rolls. It can also be cut into individual sheets and delivered by cross-cutting units.
2、 根据权利要求 1所述的一种薄中板连铸连轧生产的工艺方法, 其特征 在于: 釆用单流 2700/3200 mm宽的板坯连铸机。  2. A process for producing thin and medium plate continuous casting and rolling according to claim 1, characterized in that: a single-flow 2700/3200 mm wide slab continuous casting machine is used.
3、 根据权利要求 2所述的一种薄中板连铸连轧生产的工艺方法, 其特征 在于: 单流薄板坯连铸机, 釆用平板结晶器。  3. A process for producing a thin and medium plate continuous casting and rolling according to claim 2, wherein: the single-flow thin slab continuous casting machine uses a flat plate crystallizer.
4、 根据权利要求 2所述的一种薄中板连铸连轧生产的工艺方法, 其特征 在于: 单流薄板坯连铸机, 釆用一漏到底的凸透镜型结晶器。  4. A process for producing a thin and medium plate continuous casting and rolling according to claim 2, wherein: the single-flow thin slab continuous casting machine uses a convex lens type crystallizer which leaks to the bottom.
5、 根据权利要求 1所述的一种薄中板连铸连轧生产的工艺方法, 其特征 在于: 釆用火焰切割机进行板坯分切, 分切后釆用步进梁式加热炉进行加热, 并将出炉温度设定为 1100 - 1200°C ; 釆用强力、 高速的可逆式四辊粗轧机轧 制,粗轧后的中间带坯经切头飞剪切除头部尾, 然后送入?1^3精轧机组轧制。 5. The process for producing a thin and medium plate continuous casting and rolling according to claim 1, wherein: the slab is cut by a flame cutting machine, and the stepping beam type heating furnace is used after slitting. Heating, and setting the tapping temperature to 1100 - 1200 °C; 釆 rolling with a strong, high-speed reversible four-roll roughing mill, the intermediate strip after rough rolling is cut by the cutting head, except for the head and tail, and then sent In? 1 ^ 3 finishing mill rolling.
6、 根据权利要求 1所述的一种薄中板连铸连轧生产的工艺方法, 其特征 在于: 釆用摆动剪进行板坯分切, 分切后釆用步进梁式加热炉或辊底式加热炉 进行加热,并将出炉温度设定为 1050 - 1150°C ;釆用 FrF3精轧机组进行轧制。 6. The process for producing a thin and medium plate continuous casting and rolling according to claim 1, wherein: the slab is cut by a swinging shear, and the walking beam type heating furnace or the roller is used after slitting. The bottom heating furnace is heated, and the tapping temperature is set to 1050 - 1150 ° C; and the rolling is performed by the F r F 3 finishing mill.
7、 根据权利要求 1所述的一种薄中板连铸连轧生产的工艺方法, 其特征 在于: 釆用火焰切割机进行板坯分切, 分切后釆用步进梁式加热炉或辊底式加 热炉进行加热, 并将出炉温度设定为 1050 - 1150°C ; 釆用 FrF3精轧机组进行 轧制。 7. The process for producing a thin and medium plate continuous casting and rolling according to claim 1, wherein: the slab is cut by a flame cutting machine, and the step beam heating furnace is used after slitting or The roller bottom heating furnace is heated, and the tapping temperature is set to 1050 - 1150 ° C; and the rolling is performed by the F r F 3 finishing mill.
8、 根据权利要求 5至 7任意一项所述的一种薄中板连铸连轧生产的工艺 方法,其特征在于:所述 FrF3精轧机组釆用三架四辊式大压下量不可逆式?^3 精轧机, 并使用液压 AGC、 工作辊弯辊及窜辊、 快速换辊、 全交流电机传动。 8. A process for producing a thin and medium plate continuous casting and rolling according to any one of claims 5 to 7, wherein the F r F 3 finishing train uses three four-roller large pressures. Is the amount irreversible? ^ 3 finishing mill, and use hydraulic AGC, work roll bending and rolling, fast roll change, full AC motor drive.
9、 根据权利要求 6或 7所述的一种薄中板连铸连轧生产的工艺方法, 其 特征在于: 辊底炉后设液压事故剪。  9. A process for producing thin and medium plate continuous casting and rolling according to claim 6 or 7, characterized in that: a hydraulic accident shear is arranged behind the roller bottom furnace.
10、根据权利要求 1至 7任意一项所述的一种薄中板连铸连轧生产的工艺 方法, 其特征在于: 所述冷却的目标温度为 550-180°C。 10. Process for producing thin and medium plate continuous casting and rolling according to any one of claims 1 to 7. The method is characterized in that: the target temperature of the cooling is 550-180 °C.
PCT/CN2008/071378 2007-09-19 2008-06-20 Method for continuous casting, rolling intermediate and thin sheet WO2009036665A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20110074A1 (en) * 2011-04-01 2012-10-02 Sms Meer Spa APPARATUS FOR THE PROCESSING OF HIGH ENERGY SAVING STEEL AND RELATIVE METHOD
CN104384184A (en) * 2014-12-04 2015-03-04 贵州省过程工业技术研究中心 One-step lead anode plate shearing and forming machining method and device for wet electrolytic

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI496633B (en) * 2011-04-13 2015-08-21 Sms Siemag Ag Verfahren und vertikalstranggiessanlage zum herstellen von dicken brammen aus einer metallischen schmelze
CN102528153A (en) * 2012-01-10 2012-07-04 唐山国丰钢铁有限公司 Method for improving shearing accuracy of flying shear on hot-rolled thin plate production line
CN106734196B (en) * 2017-01-11 2018-12-14 首钢京唐钢铁联合有限责任公司 Belt steel rolling method
CN106583455B (en) * 2017-02-07 2019-01-15 唐山市丰南区嘉谊牧栏杆厂 Continuous casting and rolling production line based on the enclosure pile that intermediate frequency furnace is smelted
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TWI672382B (en) * 2019-04-18 2019-09-21 大陸商南京吉茂汽車零件有限公司 Automatic continuous roll forming method for water tank side belt
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023835A (en) * 1997-07-23 2000-02-15 Mannesmann Ag Process for producing thin-hot rolled strip
CN1189256C (en) * 2002-09-19 2005-02-16 鞍钢集团新钢铁有限责任公司 Method for continuous casting, continuoccs rolling intermediate and thin sheet blanket
CN1978080A (en) * 2005-11-29 2007-06-13 中冶赛迪工程技术股份有限公司 Band-steel producing process EPS
CN100336617C (en) * 2004-10-25 2007-09-12 广州珠江钢铁有限责任公司 Method for using hot-rolled steel plate to produce and steel cylinder by using continuously casting and rolling thin steel blanket

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529049C1 (en) * 1995-07-31 1997-03-20 Mannesmann Ag High-speed thin slab plant
CN1757454A (en) * 2005-09-01 2006-04-12 赵宗波 Prodn. process for casting and rolling medium plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023835A (en) * 1997-07-23 2000-02-15 Mannesmann Ag Process for producing thin-hot rolled strip
CN1189256C (en) * 2002-09-19 2005-02-16 鞍钢集团新钢铁有限责任公司 Method for continuous casting, continuoccs rolling intermediate and thin sheet blanket
CN100336617C (en) * 2004-10-25 2007-09-12 广州珠江钢铁有限责任公司 Method for using hot-rolled steel plate to produce and steel cylinder by using continuously casting and rolling thin steel blanket
CN1978080A (en) * 2005-11-29 2007-06-13 中冶赛迪工程技术股份有限公司 Band-steel producing process EPS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20110074A1 (en) * 2011-04-01 2012-10-02 Sms Meer Spa APPARATUS FOR THE PROCESSING OF HIGH ENERGY SAVING STEEL AND RELATIVE METHOD
WO2012131736A1 (en) * 2011-04-01 2012-10-04 Sms Meer S.P.A. Energy-saving steel production apparatus and method thereof
CN103608130A (en) * 2011-04-01 2014-02-26 Sms米尔公开股份有限公司 Energy-saving steel production apparatus and method thereof
US9156083B2 (en) 2011-04-01 2015-10-13 Sms Meer S.P.A. Energy-saving steel production apparatus and method thereof
CN104384184A (en) * 2014-12-04 2015-03-04 贵州省过程工业技术研究中心 One-step lead anode plate shearing and forming machining method and device for wet electrolytic

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