WO2015188421A1 - Long-length rolling method for t-shaped guide rail of elevator and production line therefor - Google Patents
Long-length rolling method for t-shaped guide rail of elevator and production line therefor Download PDFInfo
- Publication number
- WO2015188421A1 WO2015188421A1 PCT/CN2014/082016 CN2014082016W WO2015188421A1 WO 2015188421 A1 WO2015188421 A1 WO 2015188421A1 CN 2014082016 W CN2014082016 W CN 2014082016W WO 2015188421 A1 WO2015188421 A1 WO 2015188421A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolling
- guide rail
- elevator
- length
- long
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-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
- B21B1/08—Metal-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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/092—T-sections
Definitions
- the invention belongs to the field of steel metallurgy industrial steel rolling forming, and particularly relates to a rolling method for an elevator ⁇ -type guide rail and a production line thereof.
- the elevator guide rail is a safe rail for the elevator to travel up and down in the hoistway.
- the guide rail is installed on the hoistway wall.
- the rail bracket and the rail bracket are fixedly connected to the hoistway wall, which is related to one of the stable components of the elevator system operation. There is no substitute product at present.
- the cross-section of the commonly used guide rails of the elevator is an asymmetrical cross section, and most of them are similar to the ⁇ -shaped section, which has the characteristics of strong rigidity, high reliability, safety and low cost.
- the plane of the guide rail must be smooth and there is no obvious uneven surface. Since the guide rail is the guide rail of the elevator car and the safety rail, the clearance must be ensured during installation. At the same time, the guide rail must bear the responsibility of stopping the elevator when the elevator has an overspeed accident, so its rigidity, wear resistance and stability can not be ignored.
- GB/T 22562-2008 (ISO 7465: 2007) Hole-rolling method for T75 elevator guide rails. Due to the long leg of the elevator guide rail, the inclination of the inside of the leg is small, and the dimensional accuracy is high.
- the conventional two-roll mill has a complicated hole design, a large groove depth and a low roll strength (breaking roll) The risks are high), the hole type wears fast, the roll life is low, the production operation is complicated, the product size precision is low, and the production efficiency is low.
- the rolling of the elevator guide rail by the traditional production process technology similar to the heavy rail universal rolling method has the disadvantages of poor asymmetric rolling stability, and the curved guide rail of the asymmetric cross section is obviously bent after cooling, thereby affecting the subsequent straightening. Production pace of finishing processes such as fixed length, Production efficiency is low.
- the shortcomings of this short-slung production process include the cutting of a full-length rolling stock into a short length and then the subsequent cold working.
- the production disadvantages are: 1) The sawing process of the sawing machine such as hot saw or hot shear after finishing is increased, sawing Increase in sheet and energy consumption; 2) Increased number of short-rolled parts on cold beds, complicated control procedures for cooling beds, and increased production management costs; 3) Increased straightening times, slower production rhythms, and increased head/tail dead zone of straightened products; 4 The number of cutting heads/tails of cold saw cuts is increased, the saw blade is expensive, and the cost of saw blades is high. 5) The product yield is reduced, the production and management costs are increased, and the market competitiveness is low.
- the invention discloses a long-length rolling method for an elevator T-shaped guide rail, and the method can not only solve the cooling and bending phenomenon caused by the limitation of cooling conditions after the universal rolling of a single elevator guide rail, but also improve the elevator.
- the surface quality after rolling of the guide rail, improving the internal stress after rolling, improving the dimensional accuracy and performance of the elevator guide rail, and realizing the long-length production process of the elevator guide rail "long-length rolling, long-length cooling, long-length straightening".
- a long-length rolling method for an elevator T-shaped guide rail first, an H-type continuous casting blank is used as a raw material; then, an H-type continuous casting blank is sent to a universal double-joint rolling process, and rolled into a symmetrical double Next, the T-shaped guide rails are sent to the cooling device for cooling. After cooling, the connected T-shaped guide rails are divided into two independent T-shaped finished products through a split straightening process. Finally, the final product is obtained by performing a subsequent processing such as slitting and cutting on the T-shaped finished product after the split;
- the H-type continuous casting blank is continuously rolled and deformed in a plurality of universal rolling mills and edge-cuttering machines to obtain an elevator guide rail in a final joint state; further, the universal mold In the last rolling deformation of the double-joint rolling process, the joint portion of the two connected elevator guide rails is rolled out to obtain a positioning groove for positioning in the subsequent split straightening process;
- the split straightening process may be first divided into two-rolled parts, and then two separate single-rolled parts may be straightened; or the two-rolled parts may be straightened first, and then split into two separate rolled pieces; Further, the connected T-shaped guide rail is cooled and cooled in the cooling device, and the offline finishing includes offline double straightening, offline sawing, stacking, stacking, and collecting and feeding; After the feeding, the cutting straightening process is further divided into two independent T-shaped finished products; finally, the final finished product is obtained by performing a subsequent processing such as cutting and cutting of the split T-shaped finished product.
- the invention also claims a production line for rolling using the above process: package a heating furnace for heating an H-type continuous casting slab, a universal double-joint rolling line for rolling a H-type continuous casting blank into a symmetrical double-shaped T-shaped guide rail, for a cooling bed for cooling a joint T-rail, a split straightening unit for splitting the joint T-rail, and a post-processing line for post-processing;
- the universal twin-roll rolling production line comprises a roughing mill and a medium finishing mill which are sequentially arranged, and the roughing mill and the medium finishing mill each comprise a continuous rolling mill and a reversing rolling mill unit;
- an online shearing device is arranged before or after the continuous rolling mill unit or the reversing rolling mill unit;
- a cooling device for controlling the temperature of the rolling stock is provided in front of, behind and in the middle of the continuous rolling mill or the reversing rolling mill unit;
- the post-processing line includes a traversing marshalling gantry, a cold sawing device, a checking stacking device, a baler, and a collecting gantry.
- the invention has the following beneficial effects: Firstly, it can solve various drawbacks of the conventional two-roll single-rolled elevator guide rail, realize free-form high-precision rolling of the elevator guide rail; Second, solve the single-rolling of the elevator guide rail after During the cooling process, a large amount of bending occurs, which leads to the problem that the long-length rolling stock cannot smoothly enter the straightening machine for straightening, dredges the entire production line logistics, improves the production rhythm and fluency of each process, and realizes "long-length rolling, Long-length cooling, long-length straightening "long-length production” process; Third, reduce the number of long-cut and short-cut sawing after hot-rolling, reduce production and equipment loss costs, and significantly increase the production capacity of the production line; Fourthly, it reduces the production failure caused by uneven deformation during the traditional two-roller and universal single-rolling, reduces the production energy consumption, equipment loss, and improves the production efficiency.
- the invention is also applicable to other asymmetric cross-section shaped steel into double
- Figure 1 is a schematic view showing the production process of the present invention
- Figure 2 is a schematic view of the elevator T-shaped rail
- Figure 3 is an H-type original blank for rolling a connected elevator guide rail
- Figure 4 is a schematic view showing the general rough rolling section of the present invention.
- Figure 5 is a schematic view showing the rough section of the roughing of the present invention.
- Figure 6 is a schematic view showing the cross section of the universal middle rolling of the present invention.
- Figure 7 is a schematic cross-sectional view of a rolled edge in the present invention.
- Figure 8 is a schematic cross-sectional view of the universal finishing rolling of the present invention.
- Figure 9 is a schematic cross-sectional view of the split-connected elevator guide rail
- Figure 10 is a schematic view showing the simultaneous straightening of two independent elevator guide rails after splitting
- FIG 11 is a schematic view showing the arrangement of the production line of the present invention.
- the long-length rolling production line of the elevator ⁇ -type guide rail of the present invention comprises: a heating furnace 1 for sequentially heating the H-type continuous casting slab, which is used for rolling the H-type continuous casting slab into Universal double-joint rolling line for symmetrical double T-rails, cold bed 8 for cooling the connected T-rails, for splitting and straightening the connected T-rails
- the universal twin-rolling production line comprises a roughing unit 2 and a medium finishing unit 5 which are arranged in sequence, and the roughing unit and the medium finishing unit each comprise a continuous rolling unit and a reversing rolling mill unit; in this embodiment,
- the in-line shearing device of the present embodiment includes the first in-line shearing device 4 and the second in-line shearing device 7; in the embodiment
- the cooling device in this embodiment includes the first cooling device 3 and the second cooling device 6;
- the post-processing line includes a traverse marshalling gantry 11, a cold sawing device 12, a check stacking facility 13, a baler 14 and a collecting gantry 15, which are arranged in sequence.
- the long-length rolling method of the elevator T-shaped guide rail of the present invention consists in: first, using the H-type continuous casting blank as the original blank; and then, feeding the H-type continuous casting blank into the universal double
- the continuous rolling process is rolled into a symmetrical T-shaped guide rail; then, the connected T-shaped guide rail is sent to a cooling device for cooling, and after cooling, the connected T-shaped guide rail is sectioned and straightened.
- the process is divided into two independent T-shaped finished products; finally, the final product is obtained by performing a subsequent processing such as slitting and cutting on the split T-shaped finished product.
- the "H" type continuous casting blank is selected for the rolling original blank of the elevator guide rail. Since the deformation section is similar to the cross section of the connected elevator rail, the molding pass can be reduced and the production efficiency can be improved on the basis of ensuring the product quality.
- the billet is heated and transported to several universal rolling mills and edger for continuous rolling deformation. During the rolling process, the double-symmetric elevator rails are joined together and the rolling deformation is carried out in the rolling mill, as shown in Fig. 4. To Figure 8.
- an online shearing device is arranged between the rolling mills to cut off the irregular head generated by continuous deformation.
- a cooling device for controlling the temperature of the rolling stock is provided in front of, after and in the middle of the continuous rolling mill to realize online Controlled rolling and controlled cooling or hot rolling process.
- the symmetrical connected double elevator guide rails are cut by the hot saw to cut the head/tail and sampled and then enter the cold bed for long-length cooling. Since the rolling stock is symmetrically connected at this time, its own cooling condition has been significantly improved. Therefore, after cooling, the double-joint elevator guide rolling stock has a significantly reduced bending amplitude, which is completely different from the significant bending phenomenon after cooling of a single elevator guide rail.
- the cooled joint rolling piece is transported by roller conveyor to the splitting and straightening unit, and the joint rolling piece is centered by the centering device and the positioning groove in the middle of the continuous rolling piece, and then the piece is connected by the splitting device.
- the rolling stock is split and then straightened into the straightening unit to straighten the two separate elevator rails.
- the processing steps of the splitting device and the straightening unit are sequentially and simultaneously performed, and after the joint rolling stock enters the splitting and straightening unit, two separate elevator guide finished products are formed. After straightening, a plurality of elevator guide rails are arranged in rows by the traverse grouping device, and are transported to the cold sawing line for the finished fixed-length sawing.
- the H-type continuous casting blank is continuously rolled and deformed in a plurality of universal rolling mills and edge-rolling machines to obtain an elevator guide rail in a final joint state.
- the joint portion of the two connected elevator guide rails is rolled out to locate the positioning groove for the subsequent split straightening process positioning.
- the joint portion of the two connected elevator guide rails is rolled out to locate the positioning groove for the subsequent split straightening process positioning.
- the splitting and straightening process may be first divided into two-rolled parts, and then two separate single-rolled parts may be straightened; or the two-rolled parts may be straightened first, and then divided into two separate rolling parts. Pieces.
- the connected T-shaped guide rails are cooled in the cooling device and then subjected to online finishing.
- offline finishing can also be adopted, and offline finishing includes offline. Double straightening, off-line sawing, stacking and collecting and re-feeding; collecting and re-feeding, then entering the split straightening process, split into two independent ⁇ -type finished products; finally, by splitting After the subsequent ⁇ type finished product is subjected to a subsequent processing such as cut-to-length sawing, the final product is obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Disclosed are a long-length rolling method for a T-shaped guide rail of an elevator and a production line therefor. The method mainly comprises the steps of: first, taking an H-shaped continuous cast billet as an original billet material; then, feeding the H-shaped continuous cast billet into a universal paired conjoined rolling procedure, to roll same into a symmetrical paired T-shaped guide rail; and then, feeding the conjoined T-shaped guide rail into a cooling device for cooling, and after cooling, partitioning the conjoined T-shaped guide rail into two independent T-shaped finished rolled pieces through a partitioning and straightening procedure; and finally, after subsequent processing procedures such as sizing, saw cutting, etc. are conducted on the partitioned T-shaped finished rolled pieces, obtaining a final finished product. This method can not only solve the problem of a cooling bending phenomenon due to the limitation of cooling conditions after universal rolling is conducted on a single elevator guide rail, but can also increase the surface quality of the rolled elevator guide rail, improve the rolled internal stress, and increase the size accuracy and use performance of the elevator guide rail, thereby achieving the long-length production process of "long-length rolling, long-length cooling, and long-length straightening" of the elevator guide rail.
Description
电梯 T型导轨的长尺轧制方法及其生产线 Long-length rolling method for elevator T-rail and production line thereof
技术领域 Technical field
本发明属于钢铁冶金工业型钢轧制成型领域，具体涉及一种电梯 τ型导轨的轧制方法及其生产线。 The invention belongs to the field of steel metallurgy industrial steel rolling forming, and particularly relates to a rolling method for an elevator τ-type guide rail and a production line thereof.
背景技术 Background technique
电梯导轨是电梯上下行驶在井道的安全路轨，导轨安装在井道壁 上， 被导轨架、 导轨支架固定连接在井道墙壁， 关系到电梯***运行 的稳定部件之一， 目前尚无替代产品。 电梯常用导轨的断面为非对称 断面， 多数为类似 τ字型的断面， 具有刚性强、 可靠性高、 安全廉价 等特点。 导轨平面必须光滑， 无明显凹凸不平表面， 由于导轨是电梯 轿厢上的导靴和安全钳的穿梭路轨， 安装时必须保证其间隙。 同时导 轨在电梯出现超速事故时要承受制停电梯的要任， 所以其刚性、耐磨 型、 稳定性等均不可忽视。 The elevator guide rail is a safe rail for the elevator to travel up and down in the hoistway. The guide rail is installed on the hoistway wall. The rail bracket and the rail bracket are fixedly connected to the hoistway wall, which is related to one of the stable components of the elevator system operation. There is no substitute product at present. The cross-section of the commonly used guide rails of the elevator is an asymmetrical cross section, and most of them are similar to the τ-shaped section, which has the characteristics of strong rigidity, high reliability, safety and low cost. The plane of the guide rail must be smooth and there is no obvious uneven surface. Since the guide rail is the guide rail of the elevator car and the safety rail, the clearance must be ensured during installation. At the same time, the guide rail must bear the responsibility of stopping the elevator when the elevator has an overspeed accident, so its rigidity, wear resistance and stability can not be ignored.
目前电梯导轨生产以二辊轧机孔型轧制法居多，如相关国家标准 At present, the production of elevator guide rails is dominated by the two-roll mill pass rolling method, such as the relevant national standards.
GB/T 22562-2008 ( ISO 7465 : 2007 ) 中 T75电梯导轨的孔型轧制法。 由于电梯导轨的腿部较长， 腿部内侧斜度较小， 尺寸精度要求较高， 传统二辊轧机孔型轧法存在着孔型设计复杂、轧辊刻槽深度大、 轧辊 强度低 （断辊风险大）、 孔型磨损快、 轧辊寿命低、 生产操作复杂、 产品尺寸精度低、 生产效率低等弊端。 GB/T 22562-2008 (ISO 7465: 2007) Hole-rolling method for T75 elevator guide rails. Due to the long leg of the elevator guide rail, the inclination of the inside of the leg is small, and the dimensional accuracy is high. The conventional two-roll mill has a complicated hole design, a large groove depth and a low roll strength (breaking roll) The risks are high), the hole type wears fast, the roll life is low, the production operation is complicated, the product size precision is low, and the production efficiency is low.
然而通过传统类似重轨万能轧法的生产工艺技术轧制电梯导轨， 则存在非对称轧制稳定性较差的弊端，且非对称断面的电梯导轨在冷 却后弯曲现象明显，进而影响后续矫直、定尺等精整工序的生产节奏，
生产效率低。 However, the rolling of the elevator guide rail by the traditional production process technology similar to the heavy rail universal rolling method has the disadvantages of poor asymmetric rolling stability, and the curved guide rail of the asymmetric cross section is obviously bent after cooling, thereby affecting the subsequent straightening. Production pace of finishing processes such as fixed length, Production efficiency is low.
为实现电梯导轨产品的正常生产， 国内外企业在轧制后均采用 In order to realize the normal production of elevator guide rail products, domestic and foreign enterprises adopt after rolling.
"短尺冷却、 短尺矫直、 短尺锯切" 的 "短尺生产"工艺， 如 CN 102527714 A、 CN1299844C, 昭 60-130403等。 即在终轧后将全长的 热态轧件锯切成若干段，通过减少热态轧件的长度的方式减少轧件冷 却后的弯曲幅度， 进而能够进入矫直及后续工序。 The "short-foot production" process of "short-foot cooling, short-length straightening, short-slung sawing", such as CN 102527714 A, CN1299844C, Zhao 60-130403, and the like. That is, after the finish rolling, the full-length hot-rolled material is sawn into a plurality of sections, and the bending range after the cold-rolling is cooled is reduced by reducing the length of the hot-rolled product, thereby enabling the straightening and subsequent processes to be performed.
此种短尺生产工艺将全长轧件锯切成短尺后再进行后续冷加工 的方法带来的生产弊端有： 1 ) 终轧后的热锯或热剪等锯切设施的锯 切工序增加、 锯片及能耗增加； 2 ) 冷床上短尺轧件多、 冷床控制程 序复杂、 生产管理成本增加； 3 ) 矫直次数增加、 生产节奏变慢、 矫 直轧件的头 /尾盲区增加； 4 ) 冷锯定尺锯切的切头 /尾次数增加、 锯 片消耗大、 锯片成本高； 5 )产品成材率降低、 生产和管理成本增加、 市场竞争力低。 The shortcomings of this short-slung production process include the cutting of a full-length rolling stock into a short length and then the subsequent cold working. The production disadvantages are: 1) The sawing process of the sawing machine such as hot saw or hot shear after finishing is increased, sawing Increase in sheet and energy consumption; 2) Increased number of short-rolled parts on cold beds, complicated control procedures for cooling beds, and increased production management costs; 3) Increased straightening times, slower production rhythms, and increased head/tail dead zone of straightened products; 4 The number of cutting heads/tails of cold saw cuts is increased, the saw blade is expensive, and the cost of saw blades is high. 5) The product yield is reduced, the production and management costs are increased, and the market competitiveness is low.
随着城市化进程逐歩加快， 基础设施及房地产投资发展迅猛， 我 国电梯市场需求量激增，带动了配套电梯导轨产业的需求增长。此外， 电梯的更新改造和国际市场对电梯的需求也在逐歩增加，给电梯导轨 市场的发展创造了良好的条件。电梯导轨的技术工作者一直致力于非 对称断面电梯导轨的优化轧制及冷却后续加工工艺的研究，若能将电 梯导轨实现万能轧制及长尺生产工艺，将会是电梯导轨生产技术领域 的又一技术革新。 With the acceleration of urbanization and the rapid development of infrastructure and real estate investment, the demand for elevator market in our country has surged, driving the demand growth of the supporting elevator rail industry. In addition, the renovation of elevators and the demand for elevators in the international market are also increasing, creating favorable conditions for the development of the elevator guide rail market. The technicians of elevator guide rails have been working on the optimization of rolling and cooling subsequent processing of asymmetric section elevator guide rails. If the elevator guide rail can realize universal rolling and long-length production process, it will be the technical field of elevator guide rail production. Another technological innovation.
发明内容 Summary of the invention
根据上述电梯导轨生产方式存在的问题，结合当前万能轧制生产
工艺和控制发展水平， 本发明提出一种电梯 T 型导轨的长尺轧制方 法，此种方法不仅可以解决单根电梯导轨万能轧制后因冷却条件限制 导致的冷却弯曲现象， 还可提高电梯导轨轧后的表面质量、 改善轧后 内应力， 提高电梯导轨的尺寸精度和使用性能， 实现电梯导轨 "长尺 轧制、 长尺冷却、 长尺矫直" 的长尺生产工艺。 According to the above problems of the production method of the elevator guide rail, combined with the current universal rolling production The invention discloses a long-length rolling method for an elevator T-shaped guide rail, and the method can not only solve the cooling and bending phenomenon caused by the limitation of cooling conditions after the universal rolling of a single elevator guide rail, but also improve the elevator. The surface quality after rolling of the guide rail, improving the internal stress after rolling, improving the dimensional accuracy and performance of the elevator guide rail, and realizing the long-length production process of the elevator guide rail "long-length rolling, long-length cooling, long-length straightening".
本发明的目的是通过以下技术方案实现的： The object of the invention is achieved by the following technical solutions:
一种电梯 T型导轨的长尺轧制方法:首先， 利用 H型连铸坯作为 原始坯料； 然后， 将 H型连铸坯送入万能成双连体轧制工序， 轧制成 对称成双的的 T型导轨； 接着， 将连体的 T型导轨送入冷却装置中进 行冷却， 冷却后， 使连体的 T型导轨经过剖分矫直工序， 剖分成两根 独立的 T型成品轧件； 最后， 通过对剖分后的 T型成品轧件进行定尺 锯切等后续处理工序后得到最终成品； A long-length rolling method for an elevator T-shaped guide rail: first, an H-type continuous casting blank is used as a raw material; then, an H-type continuous casting blank is sent to a universal double-joint rolling process, and rolled into a symmetrical double Next, the T-shaped guide rails are sent to the cooling device for cooling. After cooling, the connected T-shaped guide rails are divided into two independent T-shaped finished products through a split straightening process. Finally, the final product is obtained by performing a subsequent processing such as slitting and cutting on the T-shaped finished product after the split;
进一歩，所述万能成双连体轧制工序中 H型连铸坯在若干架万能 轧机及轧边机中进行连续轧制变形， 得到最终连体状态的电梯导轨； 进一歩， 所述万能成双连体轧制工序的最后几道次轧制变形中， 将两个连体电梯导轨的结合部轧制出利于后续剖分矫直工序定位的 定位凹槽； Further, in the universal double-joint rolling process, the H-type continuous casting blank is continuously rolled and deformed in a plurality of universal rolling mills and edge-cuttering machines to obtain an elevator guide rail in a final joint state; further, the universal mold In the last rolling deformation of the double-joint rolling process, the joint portion of the two connected elevator guide rails is rolled out to obtain a positioning groove for positioning in the subsequent split straightening process;
进一歩， 所述剖分矫直工序可先剖分成双轧件， 再矫直两个单独 的单根轧件； 亦可先矫直成双轧件， 然后剖分成两根单独的轧件； 进一歩， 所述连体的 T 型导轨在冷却装置中冷却后进行离线精 整， 所述离线精整包括离线成双矫直、 离线锯切、 堆垛打捆和收集再 上料； 收集再上料之后再进入剖分矫直工序， 剖分成两根独立的 T型 成品轧件； 最后， 通过对剖分后的 T型成品轧件进行定尺锯切等后续 处理工序后得到最终成品。 Further, the split straightening process may be first divided into two-rolled parts, and then two separate single-rolled parts may be straightened; or the two-rolled parts may be straightened first, and then split into two separate rolled pieces; Further, the connected T-shaped guide rail is cooled and cooled in the cooling device, and the offline finishing includes offline double straightening, offline sawing, stacking, stacking, and collecting and feeding; After the feeding, the cutting straightening process is further divided into two independent T-shaped finished products; finally, the final finished product is obtained by performing a subsequent processing such as cutting and cutting of the split T-shaped finished product.
本发明还请求保护一种利用上述工艺方法进行轧制的生产线：包
括依次设置的用于对 H型连铸坯进行加热的加热炉、用于将 H型连铸 坯轧制成对称成双的的 T型导轨的万能成双连体轧制生产线、用于对 连体 T型导轨进行冷却的冷床、用于对连体 T型导轨进行剖分矫直的 剖分矫直联合机组和用于进行后处理的后处理生产线； The invention also claims a production line for rolling using the above process: package a heating furnace for heating an H-type continuous casting slab, a universal double-joint rolling line for rolling a H-type continuous casting blank into a symmetrical double-shaped T-shaped guide rail, for a cooling bed for cooling a joint T-rail, a split straightening unit for splitting the joint T-rail, and a post-processing line for post-processing;
进一歩，所述万能成双连体轧制生产线包括依次设置的粗轧机组 和中精轧机组，所述粗轧机组和中精轧机组均包括连轧机组和可逆轧 机机组； Further, the universal twin-roll rolling production line comprises a roughing mill and a medium finishing mill which are sequentially arranged, and the roughing mill and the medium finishing mill each comprise a continuous rolling mill and a reversing rolling mill unit;
进一歩，所述连轧机组间或可逆轧机机组前后设置有在线剪切设 备； Further, an online shearing device is arranged before or after the continuous rolling mill unit or the reversing rolling mill unit;
进一歩， 所述连轧机组或可逆轧机机组前、后及中间均设置有用 于在线控制轧件温度的冷却装置； Further, a cooling device for controlling the temperature of the rolling stock is provided in front of, behind and in the middle of the continuous rolling mill or the reversing rolling mill unit;
进一歩， 所述后处理生产线包括依次设置的横移编组台架、 -冷 锯切设备、 检査堆垛设施、 打捆机和收集台架。 Further, the post-processing line includes a traversing marshalling gantry, a cold sawing device, a checking stacking device, a baler, and a collecting gantry.
本发明的有益效果是： 一是， 可以解决传统二辊单根轧制电梯导 轨存在的各种弊端， 实现电梯导轨的自由规格高精度轧制； 二是， 解 决电梯导轨单根轧制后在冷却过程中发生较大幅度弯曲，进而导致长 尺轧件无法顺利进入矫直机进行矫直的问题， 疏通整条生产线物流， 改善各工序的生产节奏及流畅性， 实现 "长尺轧制、 长尺冷却、 长尺 矫直"的 "长尺生产"工艺； 三是， 减少热轧成型后的长尺改短尺的 锯切次数，降低生产及设备损耗成本，并显著提高生产线的生产能力； 四是，减少传统二辊及万能单根轧制时由于不均匀变形引起的生产故 障， 降低生产能耗、 设备损耗、 提高生产效率； 另外本发明还适用于 其他非对称断面异型钢材成双连体轧制工艺，可解决非对称断面型材 产品单根轧制冷却弯曲的问题。 The invention has the following beneficial effects: Firstly, it can solve various drawbacks of the conventional two-roll single-rolled elevator guide rail, realize free-form high-precision rolling of the elevator guide rail; Second, solve the single-rolling of the elevator guide rail after During the cooling process, a large amount of bending occurs, which leads to the problem that the long-length rolling stock cannot smoothly enter the straightening machine for straightening, dredges the entire production line logistics, improves the production rhythm and fluency of each process, and realizes "long-length rolling, Long-length cooling, long-length straightening "long-length production" process; Third, reduce the number of long-cut and short-cut sawing after hot-rolling, reduce production and equipment loss costs, and significantly increase the production capacity of the production line; Fourthly, it reduces the production failure caused by uneven deformation during the traditional two-roller and universal single-rolling, reduces the production energy consumption, equipment loss, and improves the production efficiency. In addition, the invention is also applicable to other asymmetric cross-section shaped steel into double connection. The body rolling process can solve the problem of cooling and bending of a single section of an asymmetric section profile product.
本发明的其他优点、目标和特征在某种程度上将在随后的说明书 中进行阐述， 并且在某种程度上， 基于对下文的考察研究对本领
域技术人员而言将是显而易见的， 或者可以从本发明的实践中得 到教导。 本发明的目标和其他优点可以通过下面的说明书来实现 和获得。 附图说明 为了使本发明的目的、 技术方案和优点更加清楚， 下面将结 合附图对本发明作进一歩的详细描述， 其中： Other advantages, objects, and features of the present invention will be set forth in part in the description which follows, and in some extent, based on the study of the following It will be apparent to those skilled in the art, or may be taught in the practice of the invention. The objectives and other advantages of the invention may be realized and obtained by the following description. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the objects, technical solutions, and advantages of the present invention more comprehensible,
图 1为本发明生产工艺流程示意图； Figure 1 is a schematic view showing the production process of the present invention;
图 2为电梯 T型导轨示意图； Figure 2 is a schematic view of the elevator T-shaped rail;
图 3为用于轧制连体电梯导轨的 H型原始坯料； Figure 3 is an H-type original blank for rolling a connected elevator guide rail;
图 4为本发明万能粗轧断面示意图； Figure 4 is a schematic view showing the general rough rolling section of the present invention;
图 5为本发明轧边粗轧断面示意图； Figure 5 is a schematic view showing the rough section of the roughing of the present invention;
图 6为本发明万能中轧断面示意图； Figure 6 is a schematic view showing the cross section of the universal middle rolling of the present invention;
图 7为本发明轧边中轧断面示意图； Figure 7 is a schematic cross-sectional view of a rolled edge in the present invention;
图 8为本发明万能精轧断面示意图； Figure 8 is a schematic cross-sectional view of the universal finishing rolling of the present invention;
图 9为剖分连体电梯导轨的断面示意图； Figure 9 is a schematic cross-sectional view of the split-connected elevator guide rail;
图 10为剖分后两根独立电梯导轨同时矫直示意图； Figure 10 is a schematic view showing the simultaneous straightening of two independent elevator guide rails after splitting;
图 11为本发明生产线布置示意图。 具体实施方式 以下将参照附图， 对本发明的优选实施例进行详细的描述。 应当理解， 优选实施例仅为了说明本发明， 而不是为了限制本发明 的保护范围。 Figure 11 is a schematic view showing the arrangement of the production line of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the preferred embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention.
如图 11所示， 本发明的电梯 τ型导轨的长尺轧制生产线： 包括 依次设置的用于对 H型连铸坯进行加热的加热炉 1、 用于将 H型连铸 坯轧制成对称成双的的 T型导轨的万能成双连体轧制生产线、用于对 连体 T型导轨进行冷却的冷床 8、 用于对连体 T型导轨进行剖分矫直
的剖分矫直联合机组和用于进行后处理的后处理生产线； 本实施例 中， 剖分矫直联合机组包括依次设置的剖分装置 9和矫直机 10， 本 实施例中， 所述万能成双连体轧制生产线包括依次设置的粗轧机组 2 和中精轧机组 5， 所述粗轧机组和中精轧机组均包括连轧机组和可逆 轧机机组； 本实施例中， 所述连轧机组间或可逆轧机机组前后设置有 在线剪切设备，本实施例的在线剪切设备包括第一在线剪切设备 4和 第二在线剪切设备 7;本实施例中，所述连轧机组或可逆轧机机组前、 后及中间均设置有用于在线控制轧件温度的冷却装置，本实施例中的 冷却装置包括第一控冷装置 3和第二控冷装置 6; 本实施例中， 所述 后处理生产线包括依次设置的横移编组台架 11、 冷锯切设备 12、 检 査堆垛设施 13、 打捆机 14和收集台架 15。 As shown in Fig. 11, the long-length rolling production line of the elevator τ-type guide rail of the present invention comprises: a heating furnace 1 for sequentially heating the H-type continuous casting slab, which is used for rolling the H-type continuous casting slab into Universal double-joint rolling line for symmetrical double T-rails, cold bed 8 for cooling the connected T-rails, for splitting and straightening the connected T-rails The split straightening combined unit and the post-processing line for performing the post-processing; in this embodiment, the split straightening unit includes the splitting device 9 and the straightening machine 10 which are sequentially disposed, in this embodiment, The universal twin-rolling production line comprises a roughing unit 2 and a medium finishing unit 5 which are arranged in sequence, and the roughing unit and the medium finishing unit each comprise a continuous rolling unit and a reversing rolling mill unit; in this embodiment, The in-line shearing device of the present embodiment includes the first in-line shearing device 4 and the second in-line shearing device 7; in the embodiment, the continuous rolling mill Or a cooling device for controlling the temperature of the rolling stock in the front, the rear, and the middle of the reversing mill unit. The cooling device in this embodiment includes the first cooling device 3 and the second cooling device 6; The post-processing line includes a traverse marshalling gantry 11, a cold sawing device 12, a check stacking facility 13, a baler 14 and a collecting gantry 15, which are arranged in sequence.
如图 1的生产工艺流程所示，本发明的电梯 T型导轨的长尺轧制 方法在于:首先， 利用 H型连铸坯作为原始坯料； 然后， 将 H型连铸 坯送入万能成双连体轧制工序，轧制成对称成双的的 T型导轨；接着， 将连体的 T型导轨送入冷却装置中进行冷却， 冷却后， 使连体的 T型 导轨经过剖分矫直工序， 剖分成两根独立的 T型成品轧件； 最后， 通 过对剖分后的 T 型成品轧件进行定尺锯切等后续处理工序后得到最 终成品。 As shown in the production process of Fig. 1, the long-length rolling method of the elevator T-shaped guide rail of the present invention consists in: first, using the H-type continuous casting blank as the original blank; and then, feeding the H-type continuous casting blank into the universal double The continuous rolling process is rolled into a symmetrical T-shaped guide rail; then, the connected T-shaped guide rail is sent to a cooling device for cooling, and after cooling, the connected T-shaped guide rail is sectioned and straightened. The process is divided into two independent T-shaped finished products; finally, the final product is obtained by performing a subsequent processing such as slitting and cutting on the split T-shaped finished product.
本实施中， 电梯导轨的轧制原始坯料选用 "H"型连铸坯， 由于 其变形断面与连体电梯导轨断面相似， 在保证产品质量的基础上， 可 减少成型道次， 提高生产效率。坯料经过加热后运送至若干架万能轧 机及轧边机中进行连续轧制变形； 在轧制过程中， 成双对称的电梯导 轨连体在一起， 同时在轧机中进行轧制变形， 如图 4到图 8所示。 在 连续轧制过程中， 可根据轧件变形道次及头部实际情况， 在连轧机组 间设置在线剪切设备， 剪切掉持续变形产生的不规则头部。在连轧机 组前、后及中间均设置有在线控制轧件温度的冷却装置， 以实现在线
控轧控冷或热机轧制工艺。经过万能轧制后生产出对称相连的双根电 梯导轨经热锯锯切头 /尾及取样后进入冷床进行长尺冷却， 由于此时 轧件对称连体， 其自身冷却条件有了显著改善， 因此在冷却后双根连 体的电梯导轨轧件， 其弯曲幅度显著减小， 与单根电梯导轨轧件冷却 后的显著弯曲现象截然不同。 冷却后的连体轧件经辊道运送至剖分、 矫直联合机组，经过对中装置及连体轧件中部的定位凹槽将连体轧件 对中， 再经剖分装置对连体轧件进行剖分， 随后进入矫直机组对分开 的两根电梯导轨进行矫直。剖分装置与矫直机组的加工工序依次且同 时进行， 连体轧件进入剖分、矫直联合机组后则形成两个单独的电梯 导轨成品。矫直后经横移编组装置对若干支电梯导轨进行成排， 并输 送至冷锯切线进行成品定尺锯切。随后进入检査台架和堆垛台架对定 尺后的电梯导轨进行检査和码垛，最后经打捆装置对成垛产品进行捆 扎， 下线入库。 对称成双的连体电梯导轨精整工艺有两种方式， 一种 为在线剖分、 矫直、 锯切、 堆垛、 收集； 另一种为在线锯切、 收集后 再离线剖分、 矫直、 堆垛、 收集。 In this embodiment, the "H" type continuous casting blank is selected for the rolling original blank of the elevator guide rail. Since the deformation section is similar to the cross section of the connected elevator rail, the molding pass can be reduced and the production efficiency can be improved on the basis of ensuring the product quality. The billet is heated and transported to several universal rolling mills and edger for continuous rolling deformation. During the rolling process, the double-symmetric elevator rails are joined together and the rolling deformation is carried out in the rolling mill, as shown in Fig. 4. To Figure 8. In the continuous rolling process, according to the deformation of the rolling stock and the actual situation of the head, an online shearing device is arranged between the rolling mills to cut off the irregular head generated by continuous deformation. A cooling device for controlling the temperature of the rolling stock is provided in front of, after and in the middle of the continuous rolling mill to realize online Controlled rolling and controlled cooling or hot rolling process. After universal rolling, the symmetrical connected double elevator guide rails are cut by the hot saw to cut the head/tail and sampled and then enter the cold bed for long-length cooling. Since the rolling stock is symmetrically connected at this time, its own cooling condition has been significantly improved. Therefore, after cooling, the double-joint elevator guide rolling stock has a significantly reduced bending amplitude, which is completely different from the significant bending phenomenon after cooling of a single elevator guide rail. The cooled joint rolling piece is transported by roller conveyor to the splitting and straightening unit, and the joint rolling piece is centered by the centering device and the positioning groove in the middle of the continuous rolling piece, and then the piece is connected by the splitting device. The rolling stock is split and then straightened into the straightening unit to straighten the two separate elevator rails. The processing steps of the splitting device and the straightening unit are sequentially and simultaneously performed, and after the joint rolling stock enters the splitting and straightening unit, two separate elevator guide finished products are formed. After straightening, a plurality of elevator guide rails are arranged in rows by the traverse grouping device, and are transported to the cold sawing line for the finished fixed-length sawing. Then enter the inspection gantry and the stacking gantry to check and palletize the elevator guide rails after the fixed length. Finally, the smashing products are bundled by the bundling device, and the lower thread is put into storage. There are two ways to complete the symmetrical double-joint elevator guide rail finishing process, one is online splitting, straightening, sawing, stacking, and collecting; the other is online sawing, collecting and then offline, and correcting Straight, piled up, collected.
本实施例中，所述万能成双连体轧制工序中 H型连铸坯在若干架 万能轧机及轧边机中进行连续轧制变形，得到最终连体状态的电梯导 轨。 In this embodiment, in the universal double-joint rolling process, the H-type continuous casting blank is continuously rolled and deformed in a plurality of universal rolling mills and edge-rolling machines to obtain an elevator guide rail in a final joint state.
本实施例中，所述万能成双连体轧制工序的最后几道次轧制变形 中，将两个连体电梯导轨的结合部轧制出利于后续剖分矫直工序定位 的定位凹槽； 以便在后续矫直及剖分工序中顺利对中， 限位， 防止轧 件在剖分过程中跑偏。 In this embodiment, in the final rolling deformation of the universal double-joint rolling process, the joint portion of the two connected elevator guide rails is rolled out to locate the positioning groove for the subsequent split straightening process positioning. In order to smoothly center and limit the subsequent straightening and splitting process, prevent the rolling stock from deviating during the splitting process.
本实施例中， 所述剖分矫直工序可先剖分成双轧件， 再矫直两个 单独的单根轧件；亦可先矫直成双轧件，然后剖分成两根单独的轧件。 In this embodiment, the splitting and straightening process may be first divided into two-rolled parts, and then two separate single-rolled parts may be straightened; or the two-rolled parts may be straightened first, and then divided into two separate rolling parts. Pieces.
本实施例中，所述连体的 T型导轨在冷却装置中冷却后进行在线 精整， 当然在不同的实施例中还可采用离线精整， 离线精整包括离线
成双矫直、 离线锯切、 堆垛打捆和收集再上料； 收集再上料之后再进 入剖分矫直工序， 剖分成两根独立的 τ型成品轧件； 最后， 通过对剖 分后的 τ型成品轧件进行定尺锯切等后续处理工序后得到最终成品。 最后说明的是， 以上实施例仅用以说明本发明的技术方案而 非限制， 尽管参照较佳实施例对本发明进行了详细说明， 本领域 的普通技术人员应当理解， 可以对本发明的技术方案进行修改或 者等同替换， 而不脱离本技术方案的宗旨和范围， 其均应涵盖在 本发明的权利要求范围当中。
In this embodiment, the connected T-shaped guide rails are cooled in the cooling device and then subjected to online finishing. Of course, in different embodiments, offline finishing can also be adopted, and offline finishing includes offline. Double straightening, off-line sawing, stacking and collecting and re-feeding; collecting and re-feeding, then entering the split straightening process, split into two independent τ-type finished products; finally, by splitting After the subsequent τ type finished product is subjected to a subsequent processing such as cut-to-length sawing, the final product is obtained. The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to be limiting, and the present invention will be described in detail with reference to the preferred embodiments. Modifications or equivalents are intended to be included within the scope of the appended claims.
Claims
1. 一种电梯 τ型导轨的长尺轧制方法， 其特征在于： 首先， 利 用 Η型连铸坯作为原始坯料； 然后， 将 Η型连铸坯送入万能成双连体 轧制工序， 轧制成对称成双的的 Τ型导轨； 接着， 将连体的 Τ型导轨 送入冷却装置中进行冷却， 冷却后， 使连体的 Τ型导轨经过剖分矫直 工序， 剖分成两根独立的 Τ型成品轧件； 最后， 通过对剖分后的 Τ型 成品轧件进行定尺锯切等后续处理工序后得到最终成品。 A long-length rolling method for an elevator τ-type guide rail, characterized in that: first, a slab-type continuous casting slab is used as a raw material; and then a slab-type continuous casting slab is sent to a universal double-joint rolling process, Rolling into a symmetrical double-shaped guide rail; then, the connected Τ-shaped guide rail is sent to the cooling device for cooling, and after cooling, the connected Τ-shaped guide rail is divided into two by a split straightening process. Separate Τ-type finished product rolled; Finally, the final product is obtained by performing a subsequent processing such as cut-to-length sawing of the finished Τ-type finished product.
2.根据权利要求 1所述的电梯 Τ型导轨的长尺轧制方法，其特征 在于：所述万能成双连体轧制工序中 Η型连铸坯在若干架万能轧机及 轧边机中进行连续轧制变形， 得到最终连体状态的电梯导轨。 2 . The method of claim 1 , wherein the spliced continuous casting slab in the universal double rolling process is in a plurality of universal rolling mills and edgers. Continuous rolling deformation is performed to obtain an elevator guide rail in a final joint state.
3.根据权利要求 1所述的电梯 Τ型导轨的长尺轧制方法，其特征 在于： 所述万能成双连体轧制工序的最后几道次轧制变形中， 将两个 连体电梯导轨的结合部轧制出利于后续剖分矫直工序定位的定位凹 槽。 The method for long-length rolling of an elevator stern-type guide rail according to claim 1, wherein: in the last several rolling deformations of the universal double-joint rolling process, two connected elevators are used. The joint portion of the guide rail is rolled to obtain a positioning groove for positioning in the subsequent split straightening process.
4.根据权利要求 1所述的电梯 Τ型导轨的长尺轧制方法，其特征 在于： 所述剖分矫直工序可先剖分成双轧件， 再矫直两个单独的单根 轧件； 亦可先矫直成双轧件， 然后剖分成两根单独的轧件。 4 . The method of claim 1 , wherein the splitting straightening process can be first divided into two rolled parts, and then two separate single rolled parts are straightened. It can also be straightened into double-rolled parts and then split into two separate rolled parts.
5.根据权利要求 1所述的电梯 Τ型导轨的长尺轧制方法，其特征 在于： 所述连体的 τ型导轨在冷却装置中冷却后进行离线精整， 所述 离线精整包括离线成双矫直、 离线锯切、 堆垛打捆和收集再上料； 收 集再上料之后再进入剖分矫直工序， 剖分成两根独立的 τ 型成品轧 件； 最后， 通过对剖分后的 τ型成品轧件进行定尺锯切等后续处理工 序后得到最终成品。 The method according to claim 1, wherein the connected τ-shaped guide rail is cooled in a cooling device and is subjected to offline finishing, and the offline finishing includes offline Double straightening, offline sawing, stacking and collecting and re-feeding; collecting and re-feeding, then entering the split straightening process, split into two independent τ-type finished products; finally, by splitting After the subsequent τ type finished product is subjected to a subsequent processing such as cut-to-length sawing, the final product is obtained.
6.—种电梯 Τ型导轨的长尺轧制生产线， 其特征在于： 包括依次 设置的用于对 Η型连铸坯进行加热的加热炉、用于将 Η型连铸坯轧制
成对称成双的的 τ型导轨的万能成双连体轧制生产线、 用于对连体 T 型导轨进行冷却的冷床、用于对连体 τ型导轨进行剖分矫直的剖分矫 直联合机组和用于进行后处理的后处理生产线。 6. A long-length rolling production line for an elevator-type guide rail, comprising: a heating furnace for sequentially heating a slab-type continuous casting slab, which is used for rolling a slab-type continuous casting slab A universal twin-roll rolling line for symmetrical τ-shaped guide rails, a cooling bed for cooling the connected T-rails, and a splitting method for splitting the joint τ-type guide rails Direct combined unit and post-treatment line for post-treatment.
7. 根据权利要求 6所述的电梯 T型导轨的长尺轧制生产线， 其 特征在于：所述万能成双连体轧制生产线包括依次设置的粗轧机组和 中精轧机组，所述粗轧机组和中精轧机组均包括连轧机组和可逆轧机 机组。 7. The long-length rolling production line of an elevator T-shaped guide rail according to claim 6, wherein the universal twin-roll rolling production line comprises a roughing unit and a medium finishing rolling unit which are sequentially disposed, the coarse Both the rolling mill and the medium finishing mill include a continuous rolling mill and a reversing mill unit.
8. 根据权利要求 7所述的电梯 T型导轨的长尺轧制生产线， 其 特征在于： 所述连轧机组间或可逆轧机机组前后设置有在线剪切设 备。 8. The long-length rolling line for an elevator T-rail according to claim 7, wherein: the in-line shearing device is disposed between the continuous rolling mill unit or the reversing rolling mill unit.
9. 根据权利要求 7所述的电梯 T型导轨的长尺轧制生产线， 其 特征在于： 所述连轧机组或可逆轧机机组前、后及中间均设置有用于 在线控制轧件温度的冷却装置。 9 . The long-length rolling production line of the elevator T-shaped guide rail according to claim 7 , wherein: the cooling device for controlling the temperature of the rolling stock is arranged in front of, behind and in the middle of the continuous rolling mill or the reversing rolling mill unit. .
10. 根据权利要求 6所述的电梯 T型导轨的长尺轧制生产线，其 特征在于： 所述后处理生产线包括依次设置的横移编组台架、 -冷锯 切设备、 检査堆垛设施、 打捆机和收集台架。
10. The long-length rolling production line for an elevator T-shaped guide rail according to claim 6, wherein: said post-processing production line comprises a traversing grouping gantry arranged in sequence, - cold sawing equipment, inspection stacking facility , balers and collection stands.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260224.6 | 2014-06-12 | ||
| CN201410260224.6A CN104014587A (en) | 2014-06-12 | 2014-06-12 | Long-length rolling method and production line of T-shaped elevator guide rails |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015188421A1 true WO2015188421A1 (en) | 2015-12-17 |
Family
ID=51431747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2014/082016 WO2015188421A1 (en) | 2014-06-12 | 2014-07-11 | Long-length rolling method for t-shaped guide rail of elevator and production line therefor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104014587A (en) |
| WO (1) | WO2015188421A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289517A (en) * | 2014-09-23 | 2015-01-21 | 南京钢铁股份有限公司 | Production method for off-line subdividing plate s |
| CN105290109A (en) * | 2015-12-06 | 2016-02-03 | 辽宁宏昌重工股份有限公司 | Roller assembly for slitting and rolling of elevator guide rail and rolling method |
| CN105414237A (en) * | 2015-12-11 | 2016-03-23 | 山东石横特钢集团有限公司 | Steel section producing device and process thereof |
| CN105583631B (en) * | 2016-02-29 | 2018-08-03 | 中冶华天工程技术有限公司 | The online strong company of the company of cuing open that connects is sawn into production cage guide finishing equipment and method |
| CN110142293A (en) * | 2019-05-09 | 2019-08-20 | 山东钢铁股份有限公司 | The milling method and its rolling system of open fashioned iron |
| CN111468911A (en) * | 2020-04-07 | 2020-07-31 | 中冶东方工程技术有限公司 | Steel rail finishing method and production line |
| CN115092790A (en) * | 2022-08-24 | 2022-09-23 | 浙江保利电梯导轨制造有限公司 | Elevator guide rail connecting and positioning structure and assembly forming process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB357789A (en) * | 1930-09-29 | 1931-10-01 | Otto Grave | The method of manufacturing t-irons |
| SU980877A1 (en) * | 1981-05-04 | 1982-12-15 | Коммунарский горно-металлургический институт | T-section production method |
| JPH0332403A (en) * | 1989-06-28 | 1991-02-13 | Sumitomo Metal Ind Ltd | Production of ribbed steel plate |
| CN102215989A (en) * | 2008-11-20 | 2011-10-12 | 杰富意钢铁株式会社 | Process for producing t-bar steel and series of rolling devices |
| CN203853375U (en) * | 2014-06-12 | 2014-10-01 | 中冶赛迪工程技术股份有限公司 | Long-length rolling production line for T-shaped guide rails of elevators |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415203A (en) * | 1987-07-07 | 1989-01-19 | Nippon Steel Corp | Manufacture of t-shape steel and similar shape steel |
| CN1096233A (en) * | 1994-02-05 | 1994-12-14 | 姜其平 | The production new technique of T shape casement section steel |
| JP3183083B2 (en) * | 1995-02-15 | 2001-07-03 | 日本鋼管株式会社 | Manufacturing equipment for cut T-section steel |
| JP3503387B2 (en) * | 1997-01-23 | 2004-03-02 | Ｊｆｅスチール株式会社 | Manufacturing method of T-section steel |
| JP3671577B2 (en) * | 1997-02-27 | 2005-07-13 | Ｊｆｅスチール株式会社 | Manufacturing method of T-section steel |
| JP2002301501A (en) * | 2001-04-06 | 2002-10-15 | Yamato Kogyo Co Ltd | T section and method for manufacturing the same |
| JP4546938B2 (en) * | 2006-03-10 | 2010-09-22 | 新日本製鐵株式会社 | Method for manufacturing T-shaped steel or angle steel |
| CN102247981B (en) * | 2011-06-01 | 2013-06-26 | 中冶赛迪工程技术股份有限公司 | Structural steel rolling production line and production process thereof |
| CN203003488U (en) * | 2012-10-12 | 2013-06-19 | 浙江海通钢业有限公司 | Elevator guide rail steel precise tandem-rolling processing line |
-
2014
- 2014-06-12 CN CN201410260224.6A patent/CN104014587A/en active Pending
- 2014-07-11 WO PCT/CN2014/082016 patent/WO2015188421A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB357789A (en) * | 1930-09-29 | 1931-10-01 | Otto Grave | The method of manufacturing t-irons |
| SU980877A1 (en) * | 1981-05-04 | 1982-12-15 | Коммунарский горно-металлургический институт | T-section production method |
| JPH0332403A (en) * | 1989-06-28 | 1991-02-13 | Sumitomo Metal Ind Ltd | Production of ribbed steel plate |
| CN102215989A (en) * | 2008-11-20 | 2011-10-12 | 杰富意钢铁株式会社 | Process for producing t-bar steel and series of rolling devices |
| CN203853375U (en) * | 2014-06-12 | 2014-10-01 | 中冶赛迪工程技术股份有限公司 | Long-length rolling production line for T-shaped guide rails of elevators |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104014587A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015188421A1 (en) | Long-length rolling method for t-shaped guide rail of elevator and production line therefor | |
| KR101516910B1 (en) | Pre-control method of head and tail shapes of continuous casting slab for reducing the removed amount from the head and tail of hot-rolled intermediate slab | |
| CN104815907B (en) | Quick connection die and method for hot rolled strip intermediate billets | |
| CN103143562A (en) | Technological method for symmetrical paired universal rolling of deformed steel | |
| CN104874603B (en) | Bar rolling process system and method | |
| KR20070112879A (en) | A continuous casting and rolling method for medium plate | |
| WO2015176515A1 (en) | Production technology for screw-thread steel bar with three ribbed sides | |
| CN208321724U (en) | Hot plate/with on-line continuous hot bending shape device and with the production line of the device | |
| CN110665962B (en) | Pass system and rolling method of narrow-flange asymmetric steel rail beam hot rolling mill | |
| CN108620434A (en) | A kind of X-shaped steel hot rolling molding process method | |
| CN203853375U (en) | Long-length rolling production line for T-shaped guide rails of elevators | |
| CN103230943A (en) | Method for improving bending of head portion of medium plate | |
| CN109092890A (en) | A kind of hot-roll forming method of bridge bracket U-shaped steel | |
| CN107639116A (en) | A kind of continuous casting line | |
| CN204685652U (en) | A kind of process system of high production capacity high-quality rolling bar | |
| CN208357553U (en) | The on-line continuous hot bending shape system and production line of hot plate/band | |
| CN110560485A (en) | Hot-rolled strip steel endless rolling intermediate billet connecting system and method | |
| CN1475314A (en) | No heating processing method in bar steel continuous casting and continuous rolling process | |
| CN112974519B (en) | Economical welding endless rolled bar production line process arrangement and production method | |
| CN215614062U (en) | Economical process arrangement of welding endless rolled bar production line | |
| CN105414183B (en) | Roll-casting of magnesium alloy plate prepares the process of wide sheet | |
| CN210754352U (en) | Hot-rolled strip steel endless rolling intermediate billet connecting system | |
| CN110180889B (en) | Track rolling production line and track rolling process applying same | |
| CN113102495A (en) | Process arrangement and production method for welding endless rolled steel bars on bar and wire production line | |
| CN111282993A (en) | Near-net shape rail blank short-flow continuous casting and rolling production method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14894452 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 14894452 Country of ref document: EP Kind code of ref document: A1 |