WO2024036987A1 - 多功能高强钢板带热处理生产***及方法 - Google Patents

多功能高强钢板带热处理生产***及方法 Download PDF

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Publication number
WO2024036987A1
WO2024036987A1 PCT/CN2023/086417 CN2023086417W WO2024036987A1 WO 2024036987 A1 WO2024036987 A1 WO 2024036987A1 CN 2023086417 W CN2023086417 W CN 2023086417W WO 2024036987 A1 WO2024036987 A1 WO 2024036987A1
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Prior art keywords
heat treatment
steel
steel plate
strip
plate
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PCT/CN2023/086417
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English (en)
French (fr)
Inventor
许立雄
廖砚林
马瑞杰
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中冶南方工程技术有限公司
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Publication of WO2024036987A1 publication Critical patent/WO2024036987A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising

Definitions

  • the invention belongs to the technical field of steel heat treatment, and specifically relates to a multifunctional high-strength steel plate and strip heat treatment production system and a high-strength steel plate and strip heat treatment production method based on the multifunctional high-strength steel plate and strip heat treatment production system.
  • the mainstream domestic high-strength steel heat treatment production processes are mainly off-line quenching and tempering (FQT) process or direct quenching + off-line tempering (DQT) process.
  • FQT off-line quenching and tempering
  • DQT direct quenching + off-line tempering
  • the invention relates to a multifunctional high-strength steel plate and strip heat treatment production system and a high-strength steel plate and strip heat treatment production method based on the multifunctional high-strength steel plate and strip heat treatment production system, which can at least solve some of the defects of the existing technology.
  • the invention relates to a multifunctional high-strength steel plate and strip heat treatment production system, which includes a preparation unit, a high-temperature heat treatment unit, a low-temperature heat treatment unit and a product collection unit connected in sequence;
  • the preparation unit includes an uncoiling device and a first shearing device
  • the high-temperature heat treatment unit includes a first heating device, a first cooling device, a second shearing device and a first stacker connected in sequence;
  • the low-temperature heat treatment unit includes at least one group of low-temperature heat treatment mechanisms, and the low-temperature heat treatment mechanism includes a second heating device and a second cooling device connected in sequence; when there are multiple groups of low-temperature heat treatment mechanisms, each low-temperature heat treatment mechanism is arranged in parallel;
  • the first shearing device is connected to the first heating device through a steel conveying channel, and the first stacker is connected to each of the second heating devices through a steel plate transfer device; each of the second cooling devices The devices are all connected to the product collection unit.
  • At least one first steel plate on-line station is provided on the steel conveying channel between the first shearing device and the first heating device, and the first steel plate on-line station is provided with There is a first steel plate on-line device capable of performing steel plate off-line or steel plate on-line operations on the steel conveying channel.
  • the product collection unit includes a finishing device and a steel plate stacking section, and each of the second cooling The devices are all connected with the inlet of the finishing device, and the outlet of the finishing device is connected with the steel plate stacking section.
  • each second cooling device is also connected to the steel plate stacking section through a bypass roller.
  • the two ends of the bypass roller are respectively located on the feeding side and the finishing device. Discharge side.
  • the steel plate conveying roller on the feed side of the finishing device is provided with a steel plate on-line station and is equipped with a steel plate on-line device.
  • each second heating device is equipped with a feeding roller, and the steel plate transfer device is respectively connected with each of the feeding rollers; there is a second steel plate up and down line on the feeding roller.
  • the second steel plate on-line and off-line station is provided with a second steel plate on-line and off-line device capable of performing steel plate off-line and steel plate on-line operations on the feed roller.
  • the invention also relates to a heat treatment production method of high-strength steel plate and strip, which is implemented based on the above-mentioned multi-functional high-strength steel plate and strip heat treatment production system;
  • the method includes a coil-plate continuous heat treatment mode and a plate-plate continuous heat treatment mode;
  • the raw steel coil is uncoiled by the uncoiling device, it passes through the first shearing device, and after being processed by the first heating device and the first cooling device, it passes through the The second shearing device cuts into plates, and the sheared steel plates are processed by the low-temperature heat treatment unit and then enter the product collection unit;
  • the raw steel coil is uncoiled by the uncoiling device, it is sheared into plates by the first shearing device, and the sheared steel plates are passed through the first heating device and the third After being processed by a cooling device, the air passes through the second shearing device, is processed by the low-temperature heat treatment unit, and then enters the product collection unit.
  • the above method also includes a plate-plate off-line heat treatment mode
  • the plate-to-plate offline heat treatment mode includes:
  • the raw steel coil is uncoiled by the uncoiling device, it is cut into plates by the first shearing device, and the sheared steel plates are temporarily stored off the line; according to the production schedule, the temporarily stored steel plates are brought online and then go through the said After being processed by the first heating device and the first cooling device, the air passes through the second shearing device, is processed by the low-temperature heat treatment unit, and then enters the product collection unit;
  • the steel plates transported from the upstream are first offline and temporarily stored.
  • the temporarily stored steel plates are brought online, and then processed by the second heating device and the second cooling device before entering the product. Collect the crew.
  • the product collection unit includes a finishing device and a steel plate stacking section
  • the product collection unit has at least one of the following steel plate finishing modes:
  • Steel plate continuous finishing mode in which the steel plates transported by the low-temperature heat treatment unit are collected through the steel plate stacking section after being finished by the finishing device;
  • Steel plate offline finishing mode in which the outer steel plate of the unit is online. After finishing treatment by the finishing device, the steel plate is passed through the steel plate. Collection in the board stacking section.
  • the method includes at least one of the following quenching and tempering heat treatment processes, quenching heat treatment processes, tempering heat treatment processes and normalizing heat treatment processes;
  • the quenching and tempering heat treatment process includes the following steps:
  • the steel plate or steel strip transported from the upstream is heated to the predetermined temperature T1 at the predetermined heating speed V1 in the first heating device, and maintained for a time t1 to austenitize the steel structure;
  • the steel output from the first heating device is cooled to room temperature in the first cooling device at a predetermined cooling rate V2 to obtain a quenched martensite structure in the steel;
  • the steel plate output from the high-temperature heat treatment unit is heated to a predetermined temperature T2 in the second heating device and kept for a time t2 to obtain a tempered martensite structure in the steel;
  • the quenching heat treatment process includes the following steps:
  • the steel plate or steel strip transported from the upstream is heated to the predetermined temperature T3 at the predetermined heating speed V3 in the first heating device, and maintained for a time of t3 to austenitize the steel structure;
  • the steel output from the first heating device is cooled to room temperature in the first cooling device at a predetermined cooling rate V4 to obtain a quenched martensite structure in the steel;
  • the normalizing heat treatment process includes the following steps:
  • the steel plate or steel strip transported from the upstream is heated to the predetermined temperature T4 at the predetermined heating speed V5 in the first heating device, and maintained for a time of t4 to austenitize the steel structure;
  • the steel output from the first heating device is cooled to room temperature in the first cooling device at a predetermined cooling rate V6 to obtain a normalized structure in the steel;
  • the tempering heat treatment process includes the following steps:
  • the steel is heated to a predetermined temperature T5 by the first heating device and held for a time of t5 to obtain a tempered martensite structure in the steel, and then cooled to room temperature in the first cooling device to obtain the target product;
  • the steel is heated to a predetermined temperature T5 through the second heating device and held for a time of t5 to obtain a tempered martensite structure in the steel, and then cooled to room temperature in the second cooling device to obtain the target product.
  • the present invention can realize production modes such as high-strength steel coil-plate continuous heat treatment and high-strength steel plate-plate continuous heat treatment, significantly improve production efficiency, production flexibility and operational reliability, and improve thin-specification high-strength steel.
  • the plate shape reduces the intermediate storage and transportation costs of steel plates, and reduces unit process costs and energy consumption.
  • the invention can be applied to the production of modulated heat treatment, quenching heat treatment, tempering heat treatment and normalizing heat treatment of steel, and has the characteristics of multi-channel, multi-mode and multi-function.
  • One production system can meet the production of multiple varieties and specifications of products, which is helpful for steel mills to reduce one-time project investment.
  • the present invention connects each unit in series and is independent of each other, so as to realize continuous production and fully utilize the production capacity and efficiency of each unit and core single equipment.
  • Figure 1 is a schematic structural diagram of a multifunctional high-strength steel plate and strip heat treatment production system provided by an embodiment of the present invention
  • Figure 2 is a schematic flow chart of the heat treatment production method of high-strength steel plate and strip provided by the embodiment of the present invention
  • Figure 3 is a schematic structural diagram of a strip cutting device provided in Embodiment 3 of the present invention.
  • Figure 4 is a schematic structural diagram of a strip conveying device provided in Embodiment 3 of the present invention.
  • Figure 5 is a plan view of a strip conveying device provided in Embodiment 3 of the present invention.
  • Figure 6 is a schematic structural diagram of a strip pressing mechanism provided in Embodiment 3 of the present invention.
  • Figure 7 is a schematic diagram of the arrangement of the guide plate on the compression frame provided by Embodiment 3 of the present invention.
  • Figure 8 is a schematic diagram of the deep bending roller body provided in Embodiment 4 of the present invention in a belt-threading position;
  • Figure 9 is a schematic diagram of the state of the deep bending roller provided by Embodiment 4 of the present invention in which the roller body is in the deep bending position;
  • Figure 10 is a schematic diagram of the state of the deep bending roller body provided in Embodiment 4 of the present invention in the standby position;
  • Figure 11 is a schematic structural diagram of a deep bending roller provided in Embodiment 4 of the present invention.
  • Figure 12 is a schematic structural diagram of a tape threading guide plate provided in Embodiment 4 of the present invention.
  • the embodiment of the present invention provides a multifunctional high-strength steel plate and strip heat treatment production system, including a preparation unit, a high-temperature heat treatment unit, a low-temperature heat treatment unit and a product collection unit connected in sequence;
  • the preparation unit includes an uncoiling device 11 and a first Shearing device 13;
  • the high-temperature heat treatment unit includes a first heating device 22, a first cooling device 23, a second shearing device 24 and a first stacker 25 connected in sequence;
  • the low-temperature heat treatment unit includes at least one group of low-temperature heat treatment units.
  • the low-temperature heat treatment mechanism includes a second heating device 41 and a second cooling device 42 connected in sequence; when there are multiple groups of low-temperature heat treatment mechanisms, each low-temperature heat treatment mechanism is arranged in parallel; wherein the first shearing device 13 passes through the steel conveying channel.
  • the first stacker 25 is connected to each of the second heating devices 41 through the steel plate transfer device 3; each of the second cooling devices 42 is connected to the product collection unit. connection.
  • the above-mentioned uncoiling device 11 is used for uncoiling steel coils, and preferably adopts a dual-channel uncoiling method, which can reduce the downtime for coil change at the entrance section and improve production efficiency.
  • a rough straightening device 12 is arranged on the outlet side of the uncoiling device 11, which can be used to straighten the steel coil and straighten the continuous strip, and can remove most of the oxide scale on the surface of the strip, and initially improve the quality of the strip. Board shape and surface quality.
  • the rough straightening device 12 can use one or more of a pinch straightening machine, a multi-roller straightening machine, and a brush roller; considering that the high-strength steel plate strip has poor plasticity, the multi-roller straightening machine can use a tension roller. Straightening, through the offset of the neutral layer, increases the plastic deformation rate, reduces the maximum elongation of the surface of the strip, and prevents cracks on the surface of the strip during the straightening process.
  • the above-mentioned first shearing device 13 can be used for cutting the head and tail of the strip, and can realize shearing operations such as cutting the continuous strip to length.
  • the above preparation unit also includes a descaling device 14, which is used to further remove iron oxide scale on the surface of the strip or steel plate, including one or more of a shot blasting machine and a brush roller; the descaling device 14 It can be arranged between the rough straightening device 12 and the first shearing device 13 , or it can be arranged on the outlet side of the first shearing device 13 .
  • the shot blasting machine sprays cast steel shots on the surface of the strip at high speed to remove the oxide scale on the surface of the strip, so that the strip has good surface quality before entering the heating furnace.
  • the inlet and outlet of the shot blasting machine are equipped with high-speed air curtains to prevent waste shot materials from overflowing. ; When the shot blasting machine and brush roller are set up at the same time, the brush roller is arranged at the outlet of the shot blasting machine to remove residual steel shot and oxide scale floating dust on the surface of the strip steel.
  • the steel conveying channel between the first shearing device 13 and the first heating device 22 is provided with at least one first steel plate on-line and on-line station.
  • the first steel plate on-line and on-line station is provided.
  • the work station is provided with a first steel plate on-line device 15 capable of performing steel plate off-line or steel plate on-line operations on the steel material conveying channel.
  • the steel conveying channel may be a conveying roller, etc.; the first steel plate loading and unloading device 15 may be a steel plate lifting device, such as a vacuum suction cup crane or a high-precision disk crane.
  • a deviation correction device 21 is provided at the entrance side of the first heating device 22, which can prevent the strip from deflecting in the first heating device 22.
  • the deviation correction device 21 can also establish tension to ensure a continuous strip.
  • the strip can be smoothly passed through during steel production and the shape of the strip in the first heating device 22 can be improved.
  • the correction device 21 is preferably in the form of a pinch correction roller. The accuracy can be controlled within ⁇ 1 ⁇ 5mm.
  • the above-mentioned first heating device 22 adopts a heating furnace, such as a non-oxidation roller hearth heating furnace or a fully sealed induction heating furnace with inert atmosphere protection, so as to achieve the purpose of heating the steel and effectively prevent the surface oxidation of the steel.
  • the above-mentioned first heating device 22 includes a heating section and a heat preservation section to facilitate the implementation of the steel heat treatment process.
  • the above-mentioned first cooling device 23 is used to cool the heated strip according to a set cooling rate.
  • One or more of aerosol, water mist and water spray methods can be used, and zone cooling technology can be used.
  • the upper and lower water ratio control technology improves the uniformity of cooling of the strip and prevents the strip from generating large internal stress during the cooling process.
  • the roller cooling method with tension can be used to further prevent the strip from forming defects due to internal stress during the cooling process.
  • the outlet of the above-mentioned first cooling device 23 is equipped with a meter inspection instrument and a plate shape meter, which can conduct online real-time monitoring of the surface quality and plate shape of the cooled strip or steel plate, and feed back the monitoring results to the first cooling device.
  • the cooling device 23 and the first cooling device 23 automatically adjust the cooling parameters in real time according to the feedback information to form a closed-loop control.
  • the above-mentioned first cooling device 23 can realize several cooling modes such as slow-speed quenching and cooling of continuous strip steel, slow-speed quenching and cooling of single steel plates, and rapid quenching and cooling of single steel plates.
  • the above-mentioned second shearing device 24 is mainly used for shearing operations such as cutting continuous strip steel to length.
  • the above-mentioned first stacker 25 can stack the cut-to-length steel plates neatly and then transport them to downstream processes; the first stacker 25 is preferably in the form of a swinging horseshoe roller and is hydraulically driven, which can improve the palletizing rhythm and Accuracy; the entrance of the first stacker 25 can be further equipped with pinch rollers, which can be used to assist in decelerating the steel plate.
  • the above-mentioned steel plate transfer device 3 can refer to the relevant equipment in Chinese patent application CN202111265720.7, and the specific structure will not be described again here.
  • the above-mentioned low-temperature heat treatment unit includes multiple sets of low-temperature heat treatment mechanisms, which can improve the flexibility and reliability of system production.
  • the above-mentioned second heating device 41 adopts a heating furnace, such as a non-oxidation roller hearth heating furnace or a fully sealed induction heating furnace with inert atmosphere protection, to achieve the purpose of heating the steel plate and effectively prevent the surface oxidation of the steel plate.
  • the above-mentioned second heating device 41 includes a heating section and a heat preservation section to facilitate the implementation of the steel plate heat treatment process.
  • the above-mentioned second cooling device 42 is used to cool the heated steel plate, wherein: the high temperature section 400-700°C preferably adopts protective gas circulating jet cooling (RJC) technology, and the steel plate is cooled at 20-60°C/s.
  • the cooling rate is rapid cooling to avoid the occurrence of temper brittleness and prevent the oxidation of the steel plate; in the low temperature section below 400°C, air jet cooling (AJC) technology is used to air-cool the steel plate to room temperature, reduce the internal stress of tempering, and obtain stable tempering. Fire organization.
  • RJC protective gas circulating jet cooling
  • each second heating device 41 is equipped with a feed roller, and the steel plate transfer device 3 is respectively connected to each of the feed rollers;
  • the second steel plate loading and unloading station is provided with a second steel plate loading and unloading device capable of performing steel plate offline or steel plate online operations on the feed roller. 43.
  • the above-mentioned feeding roller can be a conveying roller, etc.; the above-mentioned second steel plate loading and unloading device 43 can be a steel plate lifting device, such as a vacuum suction cup crane or a high-precision disk crane.
  • the on-line and off-line processing of steel plates can be realized, making the low-temperature heat treatment unit functionally independent, improving production flexibility and reliability, and at the same time improving unit equipment utilization. Furthermore, the connection between the steel plate transfer device 3 and the feed roller can be realized through the above-mentioned steel plate lifting device, thereby improving the equipment utilization rate of the steel plate lifting device.
  • the product collection unit includes a finishing device 61 and a steel plate stacking section, and each of the second cooling devices 42 is connected to the feed inlet of the finishing device 61, so The discharge port of the finishing device 61 is connected to the steel plate stacking section.
  • the above-mentioned finishing device 61 mainly includes steel plate straightening equipment, including a multi-roller straightening machine and/or a brush roller, which can straighten the steel plate while removing residual iron oxide scale on the surface of the steel plate to further improve the shape and surface of the steel plate. Quality; when using a multi-roller straightening machine, the upper roller of the multi-roller straightening machine is preferably pressed by servo hydraulic pressure.
  • the precision of the reduction amount can be controlled within ⁇ 0.1mm.
  • the lower roller has a crown adjustment to achieve the maximum yield strength.
  • Straightening of 1800MPa steel plate ensures that the unevenness of the steel plate is less than 3/1000.
  • the outlet of the finishing device 61 is equipped with a meter inspection instrument and a plate shape meter for online real-time monitoring of the surface quality and plate shape of the straightened steel plate, and the monitoring results are fed back to the finishing device 61, The finishing device 61 automatically adjusts the straightening parameters in real time based on the feedback information to form a closed-loop control.
  • each low-temperature heat treatment mechanism can share a set of finishing devices 61 , and the steel plates output from each second cooling device 42 can be transported to the finishing device 61 .
  • each second cooling device 42 is also connected to the steel plate stacking section through a bypass roller.
  • the two ends of the bypass roller are respectively located at the entrance of the finishing device 61 . Material side and discharging side; based on this design, the production flexibility of the system can be improved. For steel plates that do not need finishing treatment, they can directly enter the steel plate stacking section.
  • a steel plate on-line station is provided on the steel plate conveying roller on the feed side of the finishing device 61 and a steel plate on-line device 5 is configured.
  • the steel plate on-line device 5 can adopt a steel plate lifting device in the form of a vacuum suction cup crane or a high-precision disk crane, which can lift off-line steel plates onto the line, realizing functional independence of the finishing unit, improving production flexibility, and maximizing production efficiency. Make full use of the productivity and efficiency of finishing equipment.
  • the above-mentioned steel plate stacking section can include multiple sets of second stackers 63, and the steel plates output by the finishing device 61 can enter one of the sets of second stackers 63; in the above-mentioned
  • the number of the second stackers 63 can be the same as the number of low-temperature heat treatment mechanisms and arranged in one-to-one correspondence.
  • Each group of the second cooling device 42 can pass through the corresponding bypass.
  • the roller conveyor is connected with the corresponding second stacker 63.
  • the above-mentioned second stacker 63 is preferably in the form of a swinging horseshoe roller and is hydraulically driven, which can improve the palletizing rhythm and accuracy; the entrance of the second stacker 63 can be further equipped with a pinch roller, which can be used to assist in decelerating the steel plate.
  • a third shearing device 62 is also provided on the entrance side of the second stacker 63, which is mainly used for shearing operations such as cutting steel plates to length to meet the user's needs for steel plates of different lengths, and can also be used for Steel plate online sampling.
  • the embodiment of the present invention relates to a heat treatment production method of high-strength steel plate and strip, which is implemented based on the multi-functional high-strength steel plate and strip heat treatment production system provided in the first embodiment above;
  • the method includes a coil-plate continuous heat treatment mode and a plate-plate continuous heat treatment mode;
  • the raw steel coil is uncoiled by the uncoiling device 11, it passes through the first shearing device 13 and is processed by the first heating device 22 and the first cooling device 23. Finally, it is sheared into plates by the second shearing device 24, and the sheared steel plates are processed by the low-temperature heat treatment unit and then enter the product collection unit;
  • the raw steel coil is uncoiled by the uncoiling device 11, it is sheared into plates by the first shearing device 13, and the sheared steel plate is passed through the first heating device 22 and After being processed by the first cooling device 23, the air passes through the second shearing device 24, is processed by the low-temperature heat treatment unit, and then enters the product collection unit.
  • the above method also includes a plate-plate offline heat treatment mode;
  • the plate-plate offline heat treatment mode includes:
  • the raw steel coil is uncoiled by the uncoiling device 11, it is cut into plates by the first shearing device 13, and the sheared steel plates are temporarily stored offline; according to the production schedule, the temporarily stored steel plates are put online, and then processed After being processed by the first heating device 22 and the first cooling device 23, it passes through the second shearing device 24, is processed by the low-temperature heat treatment unit, and then enters the product collection unit; wherein, it can be processed by the above-mentioned
  • the first steel plate on-line and off-line device 15 realizes the on-line and off-line processing of steel plates;
  • the steel plates transported from the upstream are first offline and temporarily stored.
  • the temporarily stored steel plates are brought online, and then processed by the second heating device 41 and the second cooling device 42 before entering the production line.
  • the above-mentioned product collection unit; wherein, the on-line and off-line processing of steel plates can be realized through the above-mentioned second steel plate on-line and off-line device 43.
  • the product collection unit includes a finishing device 61 and a steel plate stacking section; the product collection unit has at least one of the following steel plate finishing modes:
  • Steel plate continuous unfinishing mode in which the steel plates transported by the low-temperature heat treatment unit directly enter the steel plate stacking section for collection, for example, the direct delivery of steel plates is achieved through the above-mentioned bypass roller;
  • Steel plate offline finishing mode in which the steel plate outside the unit is brought online (which can be realized by the above-mentioned steel plate online device 5). After being finished by the finishing device 61, it is collected through the steel plate stacking section.
  • the heat treatment production method of the above-mentioned high-strength steel plate and strip includes at least one of the following quenching and tempering heat treatment process, quenching heat treatment process, tempering heat treatment process and normalizing heat treatment process. Preferably, it can realize quenching and tempering heat treatment and quenching of the steel plate.
  • the corresponding heat treatment mode can be selected according to the design and production process of the steel plate produced.
  • the quenching and tempering heat treatment process includes the following steps:
  • the steel plate or steel strip transported from the upstream is heated to the predetermined temperature T1 at the predetermined heating speed V1 in the first heating device 22 and kept for a time t1 to austenitize the steel structure;
  • the steel output from the first heating device 22 is cooled to room temperature in the first cooling device 23 at a predetermined cooling rate V2 to obtain a quenched martensite structure in the steel;
  • the steel plate output from the high-temperature heat treatment unit is heated to a predetermined temperature T2 in the second heating device 41 and kept at the temperature for a time t2 to obtain a tempered martensite structure in the steel;
  • the steel plate output from the second heating device 41 is cooled to room temperature in the second cooling device 23 to obtain the target product.
  • the goal is to completely austenitize the steel structure and obtain a uniform and fine equiaxed austenite structure.
  • V1 is in the range of 5-100°C/s; T1 is in the range of 900-1100°C; and t1 is in the range of 2-10 min.
  • the goal is to make the structure of the steel material a uniform and fine quenched martensite structure.
  • V2 is in the range of 50 to 200°C/s.
  • the internal stress of the steel can be eliminated through tempering heating, so that the structure of the steel is a tempered martensitic structure, the plastic toughness of the steel is improved, and the strength, plasticity and toughness of the steel are reasonably matched.
  • T2 is in the range of 150-700°C, and t2 is in the range of 1-10 minutes.
  • the structure of the target product is a tempered structure stable at room temperature; at the same time, in this step, the generation of temper brittleness during the cooling process should be avoided.
  • the quenching heat treatment process includes the following steps:
  • the steel plate or steel strip transported from the upstream is heated to the predetermined temperature T3 at the predetermined heating speed V3 in the first heating device 22, and kept for a time of t3 to austenitize the steel structure;
  • the steel output from the first heating device 22 is cooled to room temperature in the first cooling device 23 at a predetermined cooling speed V4 to obtain a quenched martensite structure in the steel.
  • the goal is to completely austenitize the steel structure and obtain a uniform and fine equiaxed austenite structure.
  • V3 is in the range of 5-100°C/s; T3 is in the range of 900-1100°C; and t3 is in the range of 2-10 min.
  • the goal is to make the structure of the steel material a uniform and fine quenched martensite structure.
  • V4 is in the range of 50 to 200°C/s.
  • the normalizing heat treatment process includes the following steps:
  • the steel plate or steel strip transported from the upstream is heated to the predetermined temperature T4 at the predetermined heating speed V5 in the first heating device 22 and kept at the temperature for a time of t4 to austenitize the steel structure;
  • the steel output from the first heating device 22 is cooled to room temperature in the first cooling device 23 at the predetermined cooling speed V6 to obtain a normalized structure in the steel;
  • the goal is to completely austenitize the steel structure and obtain a uniform and fine equiaxed austenite structure.
  • V5 is in the range of 5-100°C/s; T4 is in the range of 900-1100°C; and t4 is in the range of 2-10 min.
  • the goal is to make the structure of the steel material a uniform and fine normalized structure.
  • V6 is in the range of 10 to 50°C/s.
  • the tempering heat treatment process includes the following steps:
  • the steel is heated to a predetermined temperature T5 by the first heating device 22 and held for a time of t5 to obtain a tempered martensite structure in the steel, and then cooled to room temperature in the first cooling device 23 to obtain the target product;
  • the steel is heated to a predetermined temperature T5 through the second heating device 41 and held for a time of t5 to obtain a tempered martensite structure in the steel, and then cooled to room temperature in the second cooling device 42 to obtain the target product.
  • the internal stress of the steel can be eliminated through tempering heating, so that the structure of the steel is a tempered martensitic structure, the plastic toughness of the steel is improved, and the strength, plasticity and toughness of the steel are reasonably matched; the structure of the target product is room temperature.
  • the cooling step the generation of temper brittleness during the cooling process should be avoided.
  • T5 is in the range of 150-700°C, and t5 is in the range of 1-10 minutes.
  • the multifunctional high-strength steel plate and strip heat treatment production system and high-strength steel plate and strip heat treatment production method provided in this embodiment can be applied to the heat treatment production of high-strength steel plate and strip with thickness specifications of 1 to 30mm and width specifications of 500 to 2200mm.
  • the maximum yield strength of the product can reach 1800MPa.
  • the surface flatness of the product is less than 3/1000, and the surface quality and surface cleanliness are less than Sa 2.5.
  • the embodiment of the present invention provides a strip cutting method on a strip continuous production line, which can be used to complete the corresponding shearing operations in the above-mentioned Embodiment 1 or 2, such as the first shearing device, the second shearing device and the third shearing device. At least one of the three shearing devices adopts this strip cutting method.
  • the strip cutting method includes the following steps:
  • the cutting head 1031 moves according to the designed cutting head running path to cut the strip.
  • the thermal cutting method or the water cutting method can be used.
  • the thermal cutting method is preferably the laser cutting method.
  • the cutting head 1031 is a laser cutting head; for the water cutting method, the cutting head 1031 is correspondingly a water cutting head. / Water jet.
  • the cutting head 1031 needs to be able to move.
  • the cutting head 1031 is configured with a cutting head driving mechanism.
  • the cutting head driving mechanism has a third element that drives the cutting head 1031 to move in the length direction of the strip running channel.
  • a driving stroke and a second driving stroke driving the cutting head 1031 to move in the width direction of the strip running channel.
  • a gantry cutting machine is used, which specifically includes:
  • Machine tool host part including the gantry 1033 and the movable seat.
  • the gantry 1033 can slide along the length of the strip running channel to realize the movement of the cutting head 1031 in the X direction.
  • the movable seat can move laterally on the gantry 1033 to realize the cutting head 1031 In the Y-direction movement, the movable seat can further be set to move up and down relative to the gantry 1033 to realize the movement of the cutting head 1031 in the Z-direction, which can assist focusing and improve the focusing efficiency and focusing accuracy of the cutting head 1031.
  • the drive of the gantry 1033 and the movable seat are preferably driven by servo motors, which can be driven correctly and accurately according to the control program;
  • the laser 1032 is installed on the above-mentioned movable seat, and the laser emitted by the laser 1032 is emitted from the cutting head 1031 to the strip. Surface to realize strip cutting operation;
  • CNC system controls the machine tool host to realize the X-, Y-, and Z-direction movements of the cutting head 1031, and also controls the output power of the laser 1032.
  • the above-mentioned cutting machine also includes an exhaust and dust removal mechanism to extract smoke and dust generated during processing and perform dust removal treatment so that the exhaust gas emissions meet environmental protection requirements.
  • the waste collection unit can be equipped with a slag discharge equipment to facilitate the timely discharge of the collected waste.
  • the running path of the cutting head is an oblique running path with an angle relative to the length direction of the strip.
  • the factors considered in the design of the above-mentioned cutting head running path mainly include strip steel specifications, strip running speed and cutting time.
  • the starting running position of the cutting head 1031 can be determined by the strip steel specifications, and the strip running speed mainly determines the cutting speed.
  • the X-direction moving speed of the head 1031, the cutting time requirement combined with the strip steel specifications can determine the Y-direction moving speed of the cutting head 1031.
  • the cutting head running paths will be different, but all cutting head running paths will be within the two boundary running paths of the cutting head 1031 (as shown in Figure 5).
  • this embodiment can realize the online continuous cutting operation of strip steel on the strip steel continuous production line without stopping or flying shearing, ensuring the reliability and smoothness of strip steel production, and is especially suitable for the online continuous cutting operation of high-strength steel plates.
  • the strip running channel is divided into a cutting area 10101 and a non-cutting area 10102.
  • the strip in the cutting area 10101 is Steel conveyor 101 is designed for protection. Based on this design, the strip conveying device 101 can be better protected, and the matching design of the strip conveying device 101 in the cutting area 10101 and the non-cutting area 10102 can effectively reduce equipment costs and maintenance costs.
  • the conveying surface of the strip conveying device 101 that is suitable for contact with the strip is made of a material that is resistant to laser irradiation, for example, the conveying surface is plated with copper or otherwise formed to be resistant to laser irradiation. material layer.
  • the above structure can better protect the strip conveying device 101, prevent the laser from passing through the strip and ablating the strip conveying device 101, and prevent surface defects of the strip conveying device 101 from affecting the surface quality of the strip.
  • the strip conveying device 101 in the cutting area 10101, includes a plurality of conveying units arranged sequentially along the length direction of the strip running channel, and each conveying unit includes a drive roller installed on At least one first conveying roller 1012 on the transmission roller 1011; when multiple first conveying rollers 1012 are installed on the transmission roller 1011, each first transmission roller 1012 is arranged at intervals on the transmission roller 1011.
  • Arranging the first conveying rollers 1012 at intervals can reduce the number of strip conveying equipment that may appear within the influence range of the cutting medium (such as the laser irradiation range), thereby correspondingly reducing the number of strip conveying devices 101 during the strip cutting process. damage.
  • the first conveying roller 1012 is used as the conveying equipment.
  • the replacement of the first conveying roller 1012 is also very convenient.
  • the new first conveying roller 1012 will be standardized and produced. Just replace the defective first conveying roller 1012, which avoids the need to replace the entire conveying roller in traditional roller conveying equipment, which can reduce maintenance costs; accordingly, the first conveying roller 1012 is removably and fixedly installed on the transmission roller. On axis 1011.
  • the transmission surface is made of materials resistant to laser irradiation
  • the outer edge surface of the first conveying roller 1012 only needs to be made of materials resistant to laser irradiation, which can also significantly reduce the cost.
  • the cross-section of the rim ring used to contact the strip is spindle-shaped, that is, the rim ring extends from the inner ring to the steel strip.
  • the direction of the outer ring has a tapered structure. Based on this structure, the contact range between the first conveying roller 1012 and the strip can be further reduced, that is, the area of the above-mentioned conveying surface can be reduced, thereby reducing the impact of the cutting medium on the strip conveying equipment. of damage.
  • the above-mentioned first conveying roller 1012 may further include a core ring, which is sleeved on the transmission roller shaft 1011, and the above-mentioned rim ring is sleeved on the core ring; wherein, the rim ring and the core ring are preferably detachably connected. , for example, the two are connected through an adapter plate.
  • the adapter plate and the rim ring can be connected through bolts, etc.
  • the adapter plate can be welded and fixed on the core ring, or can be fixed on the core ring through bolts.
  • the exposed transmission roller 1011 that is, the first conveyor is not installed
  • a protective tube 1015 is set on the roller shaft section of the roller plate 1012 to prevent the cutting medium from damaging the transmission roller 1011 during the cutting process, further reducing maintenance costs.
  • a plurality of second conveying rollers 1013 are installed on the shaft section of the transmission roller shaft 1011 extending to the non-cutting area 10102.
  • the outer peripheral surface of the second conveying roller 1013 is preferably a cylindrical ring surface, which has a relatively large contact area with the strip steel, ensuring reliable conveyance of the strip steel, and at the same time improving the force uniformity of each shaft section of the transmission roller shaft 1011 , to avoid defects such as torsional deformation of the transmission roller 1011.
  • the conveying rollers on the transmission roller 1011 are arranged at equal intervals to prevent the strip from deflecting.
  • the axis of the above-mentioned driving roller 1011 is parallel to the width direction of the strip running channel, and the first conveying roller 1012 and the second conveying roller 1013 are preferably coaxially installed on the driving roller 1011.
  • the above-mentioned transmission roller 1011 is connected with a conveying driving mechanism 1014 that drives it to rotate around its own axis.
  • the conveying driving mechanism 1014 can be a gear motor or a motor, preferably a servo motor or a servo motor.
  • the strip conveying device 101 before and after the cutting station also adopts a structure in which the transmission rollers 1011 are set with multiple conveying rollers.
  • the transmission rollers 1011 are preferably arranged in sequence with equal intervals.
  • each set of conveying driving mechanisms 1014 is arranged on both sides of the strip conveying channel. It is further preferred that there is a transmission roller shaft 1011 between the two adjacent groups of conveying driving mechanisms 1014 on the same side; based on this design , which can effectively prevent strip deviation.
  • the strip pressing mechanism 102 when cutting the strip, pressure is applied to the strip on both sides of the cutting slit to prevent the cut strip from rebounding upward, thereby better protecting the cutting equipment.
  • the strip pressing mechanism 102 can be configured accordingly. In order to cooperate with the operation of the strip and the operation of the cutting head 1031, the pressing part of the strip pressing mechanism 102 should be able to keep following the strip.
  • the above-mentioned strip pressing mechanism 102 is configured with an X-direction drive structure, such as a pressing frame 1021 with a traveling mechanism and equipped with a traveling drive structure (such as a motor).
  • the pressing frame 1021 can be combined with a gantry type
  • the gantry 1033 of the cutting machine shares the X-guide rail, or it can be equipped with an X-guide rail separately; accordingly, the strip pressing mechanism 102 needs to be provided on the front and rear sides of the cutting machine.
  • the strip pressing mechanism 102 is integrated with the cutting machine.
  • the above-mentioned pressing frame 1021 is installed on the gantry frame 1033 of the gantry cutting machine. Since it is necessary to press the strip steel on both sides of the cutting slit separately. Tight, therefore, mounting brackets can be provided on the front and rear sides of the gantry 1033 to install the compression frame 1021.
  • the above-mentioned strip pressing mechanism 102 includes a pressure beam 1022 and a pressure driving structure 1023 for driving the pressure beam 1022 to rise and fall.
  • the pressure driving structure 1023 can drive the pressure beam 1022 in the working position. and the standby position. In the working position, the pressure beam 1022 is pressed against the surface of the strip, and the standby position is located above the working position.
  • the pressure beam 1022 can be a pressure plate whose surface is parallel to the horizontal plane. Of course, pressure rollers and the like are also suitable for use in this embodiment.
  • the above-mentioned pressing drive structure 1023 may adopt linear drive equipment such as cylinders and hydraulic cylinders, or may adopt driving methods such as motor + transmission components.
  • the above-mentioned pressing down driving structure 1023 is installed on the pressing frame 1021 and connected with the pressing beam 1022.
  • a guide structure is provided on the compression frame 1021 to guide the lifting movement of the pressure beam 1022 and improve the stability and reliability of the lifting movement of the pressure beam 1022; the guide structure can use a guide rod 10241 -
  • the guiding method of the guide sleeve 10242 can also be the guiding method of the guide slide rail-guide slide block, and I will not give an example here.
  • multiple guide rods 10241 are installed on the pressure beam 1022, and multiple guide holes are correspondingly provided on the compression frame 1021; further, guide sleeves 10242 can be installed in the guide holes.
  • at least Some guide sleeves 10242 use self-lubricating sleeves.
  • an upper limit block can be set on the guide rod 10241 to limit the downward stroke of the guide rod 10241, thereby limiting the downward stroke of the pressure beam 1022 and preventing the pressure beam 1022 from being separated from the compression frame 1021; an upper limit block can also be provided on the guide rod 10241 A lower limit block is provided on the top to limit the upward stroke of the guide rod 10241 and the pressure beam 1022.
  • the above-mentioned strip pressing mechanism 102 also includes a buffer structure.
  • the buffer structure is arranged between the pressing beam 1022 and the pressing frame 1021. On the one hand, it can improve the pressure adaptability when applying pressure to the strip. On the other hand, it can effectively buffer the rebound force of the strip steel and reduce the impact on the pressing drive structure 1023 and so on.
  • the buffer structure includes multiple sets of buffer springs 1025. The top end of the buffer springs 1025 is in contact with the compression frame 1021, and the bottom end is in contact with the pressure beam 1022; a guide rod 10241 is provided above.
  • the buffer spring 1025 can be sleeved on the guide rod 10241, and the buffer spring 1025 can be restricted to only perform vertical expansion and contraction activities. Further, a plurality of sinking grooves are provided at the bottom of the compression frame 1021. The number of sinking grooves and the buffer springs 1025 are the same and arranged in one-to-one correspondence. The top ends of the buffer springs 1025 are accommodated in the corresponding sinking grooves, which can improve the strength of the buffer spring 1025.
  • the large-diameter hole section of the stepped hole is It is constituted as the sinking tank mentioned above.
  • a guide plate 1026 is also provided on the compression frame 1021.
  • the guide plate 1026 is installed at the front end (that is, the steel side end) of the compression frame 1021.
  • the guide plate 1026 The bottom end of is preferably no higher than the horizontal plane where the pressure beam standby position is located.
  • the bottom surface of the guide plate 1026 is preferably an inclined guide surface, which is inclined downward from the front end to the rear end of the guide plate 1026 (that is, the front end of the guide surface is located above the rear end).
  • the guide plate 1026 can prevent the belt head from being tilted too much and damaging the pressure plate, and can assist in belt threading and improve production efficiency.
  • the guide plate 1026 is provided only for the pressing frame 1021 on the front side of the cutting machine.
  • the above-mentioned pressure beam 1022 is a beam made of electromagnets, or an electromagnet is provided on the pressure beam 1022.
  • the control power supply of the electromagnet can be installed on the compression frame 1021, or can be controlled by the pressure beam 1021.
  • the tight frame 1021 is wired to connect to an external power source. Based on the above structure, when the pressure beam 1022 is pressed, the electromagnet is energized, which can cause the pressure beam 1022 to be adsorbed and pressed against the surface of the strip, significantly improving the compression effect of the strip and the operation synchronization.
  • an embodiment of the present invention also provides a strip cutting device, which can be used in the above-described first or second embodiment, for example, as the first shearing device/second shearing device/third shearing device in the first embodiment. cutting device.
  • the strip cutting device includes:
  • a cutting head 1031 is arranged above the strip running channel.
  • the cutting head 1031 is configured with a cutting head driving mechanism.
  • the cutting head driving mechanism has a first drive that drives the cutting head 1031 to move in the length direction of the strip running channel. stroke and a second driving stroke that drives the cutting head 1031 to move in the width direction of the strip running channel;
  • the controller is used to receive cutting instructions and control the cutting head driving mechanism to work when the strip moves to the set position so that the cutting head 1031 moves according to the preset cutting head running path and cuts the strip.
  • the cutting head running path is such that the cutting head 1031 keeps following the strip in the length direction of the strip and makes a traversing cutting motion relative to the strip in the width direction of the strip.
  • the above-mentioned controller can be integrated into the central control room of the production line.
  • the above-mentioned cutting head 1031 is preferably a laser cutting head.
  • An embodiment of the present invention provides a steel coil uncoiling unit, which can be used as the uncoiling device in the first embodiment.
  • the steel coil uncoiling unit includes a reel, a strip pinching device 203, a tape threading guide 201 used to guide the strip head from the reel to the strip pinching device 203, and a strip guide plate 201 installed on the workshop foundation.
  • the support frame is provided with a deep bending roller 2051 and a deep bending driving device for driving the deep bending roller 2051 to deep bend the strip.
  • the deep bending driving device includes a translation seat, a The translation drive mechanism 2052 that drives the translation base to move horizontally on the support frame and the deep bending swing drive mechanism 2053 that drives the deep bending roller 2051 to swing up and down, the deep bending roller frame 20511 is hinged on the translation base, so The deep bending swing driving mechanism 2053 is installed on the translation seat and connected to the deep bending roller frame 20511.
  • the driving stroke of the translation driving mechanism 2052 and the driving stroke of the deep bending swing driving mechanism 2053 satisfy: deep bending
  • the roller body 20512 has a standby position, a deep bending position, and a belt threading position that is pressed against the strip surface on the belt threading guide 201 .
  • the above-mentioned strip pinching device 203 can use pinch rollers, which are conventional equipment in this field, and the specific structure will not be described again here.
  • the deep bending roller 2051 can translate and swing up and down, it can adapt to steel coils of different steel types and different coil diameters. Obviously, it can also adjust its position according to the gradual change of the coil diameter, improve the quality of the strip steel, and ensure smooth production.
  • the above-mentioned translation driving mechanism 2052 can use linear driving equipment such as cylinders and hydraulic cylinders, or adopt a driving method of motor + transmission mechanism; the above-mentioned deep bending swing driving mechanism 2053 can also use linear driving equipment such as hydraulic cylinders.
  • the deep bending The cylinder of the swing driving mechanism 2053 is hinged on the support frame, and the output shaft of the deep bending swing driving mechanism 2053 is hinged on the deep bending roller frame 20511.
  • the deep bending roller 2051 can meet the conventional deep bending function, that is, the deep bending roller 2051 can remove the iron oxide scale on the surface of the strip during normal coil feeding and deeply bend the strip to at least partially eliminate the residual strip. stress etc.
  • the deep bending roller body 20512 also has a belt threading position that is pressed against the strip surface on the belt threading guide 201, the deep bending roller 2051 can also improve the strip shape during belt threading, thereby improving the threading efficiency. with efficiency to ensure smooth production; this embodiment fully utilizes and explores The role of the deep bending roller 2051 enables it to take the lead in processing, which can reduce the number of on-site equipment and investment costs, and is beneficial to the smoothness and safety of production.
  • the deep bending roller body 20512 is driven to run to its belt threading position, and the deep bending roller body 20512 is exerted downward pressure to achieve the effect of stripping the belt head. Defect handling.
  • the translation stroke of the translation seat extends to just above the guide channel of the tape threading guide plate 201.
  • the specific end of the translation stroke of the translation seat can be determined according to the guiding method of the tape threading guide plate 201 and the specific structure of the tape threading guide plate 201.
  • the translation stroke of the translation seat can have a certain margin, so that the deep bending roller body 20512 can be pressed down at multiple positions to process the strip head.
  • the above-mentioned deep bending roller 2051 includes a deep bending roller frame 20511, a deep bending roller seat 20513, and a deep bending roller body 20512 installed on the deep bending roller seat 20513.
  • a centering guide rail and a centering drive unit 20514 are provided on the deep bending roller frame 20511, and a deep bending roller base 20513 is slidably disposed on the centering guide rail and is in contact with the centering unit.
  • Drive unit 20514 is connected.
  • the guiding direction of the centering guide rail is parallel to the axial direction of the deep bending roller body 20512, and the deep bending roller body 20512 can be driven to perform axial translational movement through the centering drive unit 20514; the above-mentioned centering drive unit 20514 can use hydraulic pressure Linear drive equipment such as cylinders and cylinders. Based on the above structure, the position of the deep bending roller body 20512 can be adjusted, and the strip deviation can be corrected.
  • the uncoiler unit is equipped with a CPC (Center Position Control) centering device.
  • the CPC centering device is an existing device in this field, and the specific structure will not be described here.
  • the above-mentioned centering drive unit 20514 is preferably interlocked with the CPC centering device to ensure the correction effect of the strip.
  • the above-mentioned tape threading guide plate 201 is preferably a movable guide plate, which has high flexibility and requires small layout space. It can support the tape head and guide the tape head to the strip pinching device 203.
  • the belt threading guide 201 includes a swing frame 2012, a lifting base and a guide plate body 2011.
  • the middle part of the guide body 2011 is hinged to and connected to the lifting base through a first hinge axis.
  • the lifting seat is movably provided on the swing frame 2012, and is provided on the swing frame 2012 for driving the lifting seat.
  • a guide plate lifting drive mechanism 2015 for lifting movement; the swing frame 2012 is equipped with a guide plate swing drive mechanism 2013 for driving it to swing around a second hinge axis, and the axes of the first hinge axis and the second hinge axis are both parallel. on the axis of the drum.
  • an unwinding knife 20113 is provided at one end of the guide plate body 2011 close to the reel, so that it can be used for unwinding. Integrating the unwinding knife 20113 on the tape threading guide 201 can significantly reduce the number of on-site equipment and facilitate equipment. Arrangement and management.
  • the above-mentioned guide plate body 2011 includes a first guide plate section 20111 and a second guide plate section 20112 arranged on both sides of the first hinge axis, and the first guide plate section 20111 is located on the side of the first hinge axis close to the drum;
  • the unwinding knife 20113 is provided at the corresponding side end of the first guide plate section 20111.
  • the guide surface of the belt threading guide plate 201 is a boomerang-shaped guide surface, that is, the guide surface of the first guide plate section and the guide surface of the second guide plate section are spliced to form a boomerang-shaped guide surface, which can be smoothly carried out. Threading guide work.
  • the positions of the first guide plate section and the second guide plate section can be controlled, so that the first guide plate section and the second guide plate section switchably support the lead and cooperate with the swing of the swing frame 2012. And the lifting and lowering of the lifting seat can reliably complete the leading guidance operation between the steel coil and the strip steel pinching device 203.
  • the guide plate rotation driving mechanism 2014 is connected to the second guide plate section to facilitate the arrangement of the guide plate rotation driving mechanism 2014 and the driving of the guide plate body 2011.
  • the above-mentioned guide plate rotation driving mechanism 2014 may adopt linear driving equipment such as a hydraulic cylinder.
  • the above-mentioned guide plate rotation drive mechanism 2014 is arranged on the workshop foundation.
  • the guide plate rotation drive mechanism 2014 includes a first linear drive unit hinged to the workshop foundation, and the second linear drive unit is hinged to the workshop foundation.
  • the output shaft of a linear drive unit is hingedly connected to the guide plate body 2011; accordingly, the first linear drive unit can use a hydraulic cylinder, a pneumatic cylinder, etc.
  • the guide plate rotation driving mechanism 2014 is arranged on the workshop foundation instead of being installed on the swing frame 2012. On the one hand, it facilitates the layout of the equipment, can reduce the weight of the swing frame 2012, and saves the energy consumption of the first swing drive mechanism. On the other hand, The two actions of rotation of the guide plate body 2011 and swinging with the swing frame 2012 are made independent of each other and cooperate with each other, thereby improving the control flexibility and accuracy of the guide plate body 2011.
  • the above-mentioned guide plate lifting drive mechanism 2015 can also adopt linear drive equipment such as hydraulic cylinders.
  • a lifting guide rail is provided on the swing frame 2012 to guide and constrain the lifting movement of the lifting seat, which can improve the stability of the lifting of the guide plate body 2011.
  • the above-mentioned guide plate swing driving mechanism 2013 can also adopt linear driving equipment such as hydraulic cylinders.
  • the guide plate swing driving mechanism 2013 is arranged on a workshop foundation.
  • the guide plate swing driving mechanism 2013 includes a second linear drive unit hinged to the workshop foundation.
  • the second linear drive unit has The output shaft is hingedly connected to the swing frame 2012.
  • the bottom end of the swing frame 2012 is hinged on the workshop foundation, and the output end of the above-mentioned guide plate swing driving mechanism 2013 is hinged on the middle part of the swing frame 2012.
  • the above-mentioned swing frame 2012 can adopt a steel truss structure, which can significantly reduce its own weight while ensuring the structural strength.
  • the above-mentioned second guide plate section 20112 is provided with an electromagnet 20114, or a plurality of adsorption holes are opened on the guide surface of the second guide plate section 20112 and are provided on the second guide plate section 20112.
  • a vacuum adsorption chamber is formed in 20112.
  • an air extraction pipeline can be arranged on the swing frame 2012 and connected to external vacuum equipment through a drag chain or the like.
  • the electromagnet 20114 is provided on the second guide plate section 20112.
  • the equipment layout and The wiring is relatively convenient, and the working reliability is high.
  • the electromagnet 20114 can be powered on or off by controlling it, and the response speed is fast.
  • an electromagnet 20114 or an adsorption hole is provided on the second guide plate section 20112 so that the guide plate body 2011 can absorb the strip.
  • the guide plate body 2011 rotates or lifts, it can ensure that the lead can fit on the guide plate.
  • the reliability of the strapping operation and the efficiency of strapping are improved. Setting up the electromagnet 20114 or using the vacuum adsorption method not only facilitates the layout of the equipment, reduces the space occupied by the equipment and the weight of the swing frame 2012, but also has high adsorption reliability for the strip, easy and flexible operation, and will not interfere with the steel wire.
  • the uncoiling unit also includes a pressure roller device 204, which is used to press the strip during uncoiling to assist in completing the uncoiling operation.
  • a pressure roller device 204 which is used to press the strip during uncoiling to assist in completing the uncoiling operation. All existing pressure roller devices 204 are suitable for use in this embodiment. , will not be described in detail here.
  • the embodiment of the present invention provides a steel coil uncoiling method, which is implemented based on the above steel coil uncoiling unit;
  • the methods include:
  • the translation drive mechanism 2052 and the deep bending swing driving mechanism 2053 cooperate to drive the deep bending roller body 20512 to press the leading surface on the belt threading guide plate 201 to improve the leading plate. shape purpose.
  • the shape of the leading plate can be judged manually, or a plate shape recognition device can be installed on the support frame for automatic judgment.
  • the tape threading guide plate 201 adopts a swing structure, wherein after the tape threading guide plate 201 receives the tape head at the reel, it swings toward the strip pinching device 203 to implement the tape threading operation.
  • the belt threading guide plate 201 can adopt the structure "including the swing frame 2012, the lifting seat and the guide plate body 2011" in the first embodiment, which will not be described again here.
  • the strip guide plate 201 is provided with an electromagnet 20114 or a vacuum adsorption channel for adsorbing strip steel. This structure is also described in the first embodiment above and will not be described again here;
  • the tape head is adsorbed by the electromagnet 20114 or the vacuum adsorption channel to prevent the tape head from slipping off the tape threading guide plate 201;
  • the tape guide plate 201 can absorb the strip, it can avoid the strip moving due to poor plate shape when the deep bending roller body 20512 is pressed down, and the strip processing effect can be further improved.
  • the translation driving mechanism 2052 and the deep bending swing driving mechanism 2053 cooperate to make the deep bending roller body 20512 move along the surface of the tape threading guide 201. Compared with the situation of pressing down at a single point, it can effectively Raise the lead Treatment effect, obtain good leading plate shape.

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Abstract

本发明涉及一种多功能高强钢板带热处理生产***，包括依次衔接的准备机组、高温热处理机组、低温热处理机组和产品收集机组；准备机组包括开卷装置和第一剪切装置；高温热处理机组包括依次衔接的第一加热装置、第一冷却装置、第二剪切装置和第一堆垛机；低温热处理机组包括至少一组低温热处理机构，低温热处理机构包括依次衔接的第二加热装置和第二冷却装置。另外还提供一种基于上述生产***实施的高强钢板带热处理生产方法。本发明可实现卷-板连续热处理、板-板连续热处理等生产模式，适用于钢材的调制热处理、淬火热处理、回火热处理、正火热处理生产，具有多通道、多模式、多功能的特点，可满足多品种、多规格产品的生产。

Description

多功能高强钢板带热处理生产***及方法 技术领域
本发明属于钢材热处理技术领域，具体涉及一种多功能高强钢板带热处理生产***及基于该多功能高强钢板带热处理生产***的高强钢板带热处理生产方法。
背景技术
随着现代工业水平的提高，工程机械、商用车等行业对钢铁材料的结构轻量化、产品升级换代、产品寿命提高等方面提出了迫切需求，800MPa级以上热处理超高强钢、耐磨钢需求量逐年增加，钢铁市场对高强钢的质量和产量均提出了越来越高的要求。
目前国内主流的高强钢热处理生产工艺主要是离线调质(FQT)工艺或直接淬火+离线回火(DQT)工艺，但由于生产周期长、工序复杂，这两种热处理工艺均存在投资高、效率低、能耗大以及产品性能稳定性差等缺点。
发明内容
本发明涉及一种多功能高强钢板带热处理生产***及基于该多功能高强钢板带热处理生产***的高强钢板带热处理生产方法，至少可解决现有技术的部分缺陷。
本发明涉及一种多功能高强钢板带热处理生产***，包括依次衔接的准备机组、高温热处理机组、低温热处理机组和产品收集机组；
所述准备机组包括开卷装置和第一剪切装置；
所述高温热处理机组包括依次衔接的第一加热装置、第一冷却装置、第二剪切装置和第一堆垛机；
所述低温热处理机组包括至少一组低温热处理机构，所述低温热处理机构包括依次衔接的第二加热装置和第二冷却装置；有多组低温热处理机构时，各低温热处理机构并联布置；
其中，所述第一剪切装置通过钢材输送通道与所述第一加热装置衔接，所述第一堆垛机通过钢板转运装置分别与各所述第二加热装置衔接；各所述第二冷却装置均与所述产品收集机组衔接。
作为实施方式之一，所述第一剪切装置与所述第一加热装置之间的钢材输送通道上设有至少一个第一钢板上下线工位，所述第一钢板上下线工位处设有能够对钢材输送通道进行钢板下线或钢板上线操作的第一钢板上下线装置。
作为实施方式之一，所述产品收集机组包括精整装置和钢板堆垛工段，各所述第二冷却 装置均与所述精整装置的入料口衔接，所述精整装置的出料口与所述钢板堆垛工段衔接。
作为实施方式之一，每一所述第二冷却装置还通过旁通辊道与所述钢板堆垛工段衔接，所述旁通辊道的两端分别位于所述精整装置的入料侧和出料侧。
作为实施方式之一，精整装置入料侧的钢板输送辊道上设有钢板上线工位并且配置有钢板上线装置。
作为实施方式之一，每一所述第二加热装置配置有进料辊道，所述钢板转运装置分别与各所述进料辊道衔接；所述进料辊道上有第二钢板上下线工位，所述第二钢板上下线工位处设有能够对进料辊道进行钢板下线或钢板上线操作的第二钢板上下线装置。
本发明还涉及一种高强钢板带热处理生产方法，基于上述的多功能高强钢板带热处理生产***实施；
所述方法包括卷-板连续热处理模式和板-板连续热处理模式；
所述卷-板连续热处理模式下，原料钢卷经所述开卷装置开卷后，空过所述第一剪切装置，经所述第一加热装置和所述第一冷却装置处理后，通过所述第二剪切装置剪切成板，剪切后的钢板经所述低温热处理机组处理后，进入所述产品收集机组；
所述板-板连续热处理模式下，原料钢卷经所述开卷装置开卷后，通过所述第一剪切装置剪切成板，剪切后的钢板经所述第一加热装置和所述第一冷却装置处理后，空过所述第二剪切装置、经所述低温热处理机组处理后，进入所述产品收集机组。
作为实施方式之一，上述方法还包括板-板离线热处理模式；
所述板-板离线热处理模式包括：
原料钢卷经所述开卷装置开卷后，通过所述第一剪切装置剪切成板，剪切后的钢板下线暂存；根据生产排产，使暂存的钢板上线，再经所述第一加热装置和所述第一冷却装置处理后，空过所述第二剪切装置、经所述低温热处理机组处理后，进入所述产品收集机组；
和/或，在低温热处理机组，上游输送过来的钢板先下线暂存，根据生产排产，使暂存的钢板上线，再经第二加热装置和第二冷却装置处理后，进入所述产品收集机组。
作为实施方式之一，所述产品收集机组包括精整装置和钢板堆垛工段；
所述产品收集机组具有如下钢板精整模式中的至少一种：
钢板连续精整模式，其中，所述低温热处理机组输送过来的钢板经所述精整装置精整处理后，通过所述钢板堆垛工段收集；
钢板连续不精整模式，其中，所述低温热处理机组输送过来的钢板直接进入所述钢板堆垛工段进行收集；
钢板离线精整模式，其中，机组外钢板上线，经所述精整装置精整处理后，通过所述钢 板堆垛工段收集。
作为实施方式之一，所述方法包括如下调质热处理工艺、淬火热处理工艺、回火热处理工艺和正火热处理工艺中的至少一种；
所述调质热处理工艺包括如下步骤：
S11，上游输送过来的钢板或钢带在所述第一加热装置中按预定加热速度V1加热至预定温度T1，并保温t1时间，使钢材组织奥氏体化；
S12，第一加热装置输出的钢材在所述第一冷却装置中按预定冷却速度V2冷却至室温，以在钢材中得到淬火态马氏体组织；
S13，高温热处理机组输出的钢板在所述第二加热装置中加热至预定温度T2，并保温t2时间，以在钢材中得到回火马氏体组织；
S14，第二加热装置输出的钢板在所述第二冷却装置中冷却至室温，获得目标产品；
所述淬火热处理工艺包括如下步骤：
S21，上游输送过来的钢板或钢带在所述第一加热装置中按预定加热速度V3加热至预定温度T3，并保温t3时间，使钢材组织奥氏体化；
S22，第一加热装置输出的钢材在所述第一冷却装置中按预定冷却速度V4冷却至室温，以在钢材中得到淬火态马氏体组织；
所述正火热处理工艺包括如下步骤：
S31，上游输送过来的钢板或钢带在所述第一加热装置中按预定加热速度V5加热至预定温度T4，并保温t4时间，使钢材组织奥氏体化；
S32，第一加热装置输出的钢材在所述第一冷却装置中按预定冷却速度V6冷却至室温，以在钢材中得到正火态组织；
所述回火热处理工艺包括如下步骤：
通过第一加热装置将钢材加热至预定温度T5，并保温t5时间，以在钢材中得到回火马氏体组织，随后在第一冷却装置中冷却至室温，获得目标产品；
或者，通过第二加热装置将钢材加热至预定温度T5，并保温t5时间，以在钢材中得到回火马氏体组织，随后在第二冷却装置中冷却至室温，获得目标产品。
本发明至少具有如下有益效果：
本发明通过相关设备的配置和产线设计，可实现高强钢卷-板连续热处理、高强钢板-板连续热处理等生产模式，显著提高生产效率、生产灵活性和运行可靠性，改善薄规格高强钢的板形，减少钢板中间储运成本，降低单位工序成本和能耗。本发明可适用于钢材的调制热处理、淬火热处理、回火热处理、正火热处理生产，具有多通道、多模式、多功能的特点， 一个生产***即可满足多品种、多规格产品的生产，有利于钢厂减少一次性工程投资。
本发明进一步具有如下有益效果：
本发明通过多种物流通道的合理设计，将各个机组相互串联又彼此独立，实现连续生产的同时，可充分发挥各机组以及核心单体设备的产能和效益。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本发明实施例提供的多功能高强钢板带热处理生产***的结构示意图；
图2为本发明实施例提供的高强钢板带热处理生产方法的流程示意图；
图3为本发明实施例三提供的带钢切割装置的结构示意图；
图4为本发明实施例三提供的带钢输送装置的结构示意图；
图5为本发明实施例三提供的带钢输送装置的平面图；
图6为本发明实施例三提供的带钢压紧机构的结构示意图；
图7为本发明实施例三提供的导向板在压紧框架上的布置示意图；
图8为本发明实施例四提供的深弯辊辊体处于穿带位的状态示意图；
图9为本发明实施例四提供的深弯辊辊体处于深弯位的状态示意图；
图10为本发明实施例四提供的深弯辊辊体处于待机位的状态示意图；
图11为本发明实施例四提供的深弯辊的结构示意图；
图12为本发明实施例四提供的穿带导板的结构示意图。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
实施例一
如图1，本发明实施例提供一种多功能高强钢板带热处理生产***，包括依次衔接的准备机组、高温热处理机组、低温热处理机组和产品收集机组；所述准备机组包括开卷装置11和第一剪切装置13；所述高温热处理机组包括依次衔接的第一加热装置22、第一冷却装置23、第二剪切装置24和第一堆垛机25；所述低温热处理机组包括至少一组低温热处理机构， 所述低温热处理机构包括依次衔接的第二加热装置41和第二冷却装置42；有多组低温热处理机构时，各低温热处理机构并联布置；其中，所述第一剪切装置13通过钢材输送通道与所述第一加热装置22衔接，所述第一堆垛机25通过钢板转运装置3分别与各所述第二加热装置41衔接；各所述第二冷却装置42均与所述产品收集机组衔接。
上述开卷装置11用于钢卷开卷，优选为采用双通道开卷方式，可缩减入口段换卷停机时间，提高生产效率。
优选地，如图1，开卷装置11出口侧布置有粗矫装置12，可用于钢卷直头并对连续带钢进行矫直，以及可去除带钢表面大部分氧化铁皮，初步改善带钢的板形和表面质量。该粗矫装置12可采用夹送矫直机、多辊矫直机、刷辊中的一种或多种；其中，考虑到高强钢板带的塑性较差，多辊矫直机可采用张力辊矫，通过中性层的偏移提高塑性变形率，降低带钢的表面最大延伸率，防止矫直过程中带钢表面出现裂纹。
上述第一剪切装置13可用于带钢切头尾，以及实现连续带钢的定尺分切等剪切操作。
进一步地，如图1，上述准备机组还包括除鳞装置14，用于进一步去除带钢或钢板表面的氧化铁皮，包括抛丸机、刷辊中的一种或多种；该除鳞装置14可布置在粗矫装置12与第一剪切装置13之间，也可布置在第一剪切装置13的出口侧。抛丸机通过向带钢表面高速喷射铸钢丸，以去除带钢表面氧化铁皮，使带钢进入加热炉前具有良好表面质量，抛丸机入出口均配置有高速气帘，防止废丸料溢出；当同时设置抛丸机和刷辊时，刷辊布置在抛丸机出口，用于清除带钢表面残余钢丸和氧化铁皮浮灰。
进一步优选地，如图1，所述第一剪切装置13与所述第一加热装置22之间的钢材输送通道上设有至少一个第一钢板上下线工位，所述第一钢板上下线工位处设有能够对钢材输送通道进行钢板下线或钢板上线操作的第一钢板上下线装置15。上述钢材输送通道可以是输送辊道等；上述第一钢板上下线装置15可采用钢板吊运装置，例如采用真空吸盘吊机或高精度磁盘吊机等。基于该结构，可以实现钢板的上下线处理，实现准备机组的功能独立化，可在下游工序故障时，将钢板吊运下线暂存(例如进入中间库)，也可在上游工序故障时，将线下钢板吊运上线，实现故障不停产，提高***稳定性。
在其中一个实施例中，如图1，第一钢板上下线工位有两个并且分列于除鳞装置14的前后两侧，能实现除磷装置功能独立化，实现线外钢板的除磷，最大程度发挥除磷装置的产能和效益。
优选地，如图1，在第一加热装置22的入口侧设有纠偏装置21，可以防止带钢在第一加热装置22内跑偏，同时也可通过该纠偏装置21建立张力，保证连续带钢生产时顺利通板，并改善带钢在第一加热装置22内的板形。该纠偏装置21优选为采用夹送纠偏辊形式，纠偏 精度可控制在±1～5mm。
优选地，上述第一加热装置22采用加热炉，例如采用无氧化辊底式加热炉或带惰性气氛保护的全密封感应加热炉等，实现钢材加热目的同时，可有效防止钢材表面氧化。优选地，上述第一加热装置22包括加热段和保温段，便于钢材热处理工艺的实施。
优选地，上述第一冷却装置23用于将加热后的板带按照设定的冷却速率冷却，可采用气雾、水雾与水喷淋方式中的一种或多种，可通过分区冷却技术与上下水比控制技术，提高板带冷却均匀性，防止板带在冷却过程中产生较大的内应力。进一步地，可采用带张力的辊压式冷却方式，进一步防止带钢在冷却过程中因内应力而产生板型缺陷。
进一步地，上述第一冷却装置23的出口处配置有表检仪和板型仪，可以对冷却后的带钢或钢板的表面质量和板形进行在线实时监测，并将监测结果反馈到第一冷却装置23，第一冷却装置23根据反馈信息对冷却参数进行实时自动调节，形成闭环控制。
其中，上述第一冷却装置23可实现连续带钢慢速出炉淬火冷却、单张钢板慢速出炉淬火冷却和单张钢板快速出炉淬火冷却等几种冷却模式。
上述第二剪切装置24主要用于连续带钢的定尺分切等剪切操作。上述第一堆垛机25可将定尺分切后的钢板码垛整齐，进而运送到下游工序；该第一堆垛机25优选为采用摆动马蹄辊形式，液压驱动，可提高码垛节奏和精度；该第一堆垛机25的入口可进一步配置夹送辊，可用于辅助钢板减速。
在其中一个实施例中，上述钢板转运装置3可参考中国专利申请CN202111265720.7中的相关设备，具体结构此处不作赘述。
优选地，上述低温热处理机组包括多组低温热处理机构，可以提高***生产的灵活性和可靠性。
上述第二加热装置41采用加热炉，例如采用无氧化辊底式加热炉或带惰性气氛保护的全密封感应加热炉等，实现钢板加热目的同时，可有效防止钢板表面氧化。优选地，上述第二加热装置41包括加热段和保温段，便于钢板热处理工艺的实施。
优选地，上述第二冷却装置42用于对加热后的钢板进行冷却，其中：高温段400～700℃优选为采用保护气体循环喷吹冷却(RJC)技术，将钢板以20～60℃/s的冷却速度快速冷却，避免回火脆性的发生，同时防止钢板氧化；低温段400℃以下采用了空气喷吹冷却(AJC)技术将钢板空冷至室温，降低回火内应力，并得到稳定的回火态组织。
在其中一个实施例中，如图1，每一所述第二加热装置41配置有进料辊道，所述钢板转运装置3分别与各所述进料辊道衔接；所述进料辊道上有第二钢板上下线工位，所述第二钢板上下线工位处设有能够对进料辊道进行钢板下线或钢板上线操作的第二钢板上下线装置 43。上述进料辊道可以是输送辊道等；上述第二钢板上下线装置43可采用钢板吊运装置，例如采用真空吸盘吊机或高精度磁盘吊机等。基于该结构，可以实现钢板的上下线处理，使低温热处理机组具有功能独立性，提高生产灵活性和可靠性，同时也能提高机组设备利用率。进一步地，可以通过上述钢板吊运装置实现钢板转运装置3与进料辊道之间的衔接，提高该钢板吊运装置的设备利用率。
在其中一个实施例中，如图1，所述产品收集机组包括精整装置61和钢板堆垛工段，各所述第二冷却装置42均与所述精整装置61的入料口衔接，所述精整装置61的出料口与所述钢板堆垛工段衔接。其中，上述精整装置61主要包括钢板矫直设备，包括多辊矫直机和/或刷辊，可以对钢板进行矫直，同时去除钢板表面残留的氧化铁皮，进一步改善钢板的板形和表面质量；采用多辊矫直机时，该多辊矫直机的上辊优选为采用伺服液压压下，压下量精度可控制在±0.1mm，下辊带凸度调节，可实现最大屈服强度1800MPa钢板的矫直，保证钢板不平度在3/1000以下。另外，优选地，精整装置61出口配置有表检仪和板型仪，用于对矫直后的钢板的表面质量和板形进行在线实时监测，并将监测结果反馈到精整装置61，精整装置61根据反馈信息对矫直参数进行实时自动调节，形成闭环控制。
对于并联的多组低温热处理机构，各低温热处理机构可共用一组精整装置61，各第二冷却装置42输出的钢板均可以输送至该精整装置61中。
进一步地，如图1，每一所述第二冷却装置42还通过旁通辊道与所述钢板堆垛工段衔接，所述旁通辊道的两端分别位于所述精整装置61的入料侧和出料侧；基于该设计，可以提高***生产灵活性，对于不需要进行精整处理的钢板，可以直接进入钢板堆垛工段。
进一步地，如图1，精整装置61入料侧的钢板输送辊道上设有钢板上线工位并且配置有钢板上线装置5。该钢板上线装置5可采用真空吸盘吊或高精度磁盘吊等形式的钢板吊运装置，可以将线外钢板吊运上线，实现精整机组具有功能独立化，提高生产灵活性，最大程度地发挥精整设备的产能和效益。
在其中一个实施例中，如图1，上述钢板堆垛工段可以包括多组第二堆垛机63，精整装置61输出的钢板可以进入其中一组第二堆垛机63；在上述设有第二冷却装置42配置有旁通辊道的方案中，可设置第二堆垛机63的数量与低温热处理机构的数量相同并且一一对应配置，每组第二冷却装置42可通过对应的旁通辊道与对应的第二堆垛机63衔接。上述第二堆垛机63优选为采用摆动马蹄辊形式，液压驱动，可提高码垛节奏和精度；该第二堆垛机63的入口可进一步配置夹送辊，可用于辅助钢板减速。
进一步地，在第二堆垛机63的入口侧还设有第三剪切装置62，主要用于钢板的定尺剪切等剪切操作，以满足用户对不同长度钢板的需求，也可用于钢板在线取样。
实施例二
如图1和图2，本发明实施例涉及一种高强钢板带热处理生产方法，基于上述实施例一所提供的多功能高强钢板带热处理生产***实施；
所述方法包括卷-板连续热处理模式和板-板连续热处理模式；
所述卷-板连续热处理模式下，原料钢卷经所述开卷装置11开卷后，空过所述第一剪切装置13，经所述第一加热装置22和所述第一冷却装置23处理后，通过所述第二剪切装置24剪切成板，剪切后的钢板经所述低温热处理机组处理后，进入所述产品收集机组；
所述板-板连续热处理模式下，原料钢卷经所述开卷装置11开卷后，通过所述第一剪切装置13剪切成板，剪切后的钢板经所述第一加热装置22和所述第一冷却装置23处理后，空过所述第二剪切装置24、经所述低温热处理机组处理后，进入所述产品收集机组。
进一步地，上述方法还包括板-板离线热处理模式；所述板-板离线热处理模式包括：
原料钢卷经所述开卷装置11开卷后，通过所述第一剪切装置13剪切成板，剪切后的钢板下线暂存；根据生产排产，使暂存的钢板上线，再经所述第一加热装置22和所述第一冷却装置23处理后，空过所述第二剪切装置24、经所述低温热处理机组处理后，进入所述产品收集机组；其中，可以通过上述第一钢板上下线装置15实现钢板的上线和下线处理；
和/或，在低温热处理机组，上游输送过来的钢板先下线暂存，根据生产排产，使暂存的钢板上线，再经第二加热装置41和第二冷却装置42处理后，进入所述产品收集机组；其中，可以通过上述第二钢板上下线装置43实现钢板的上线和下线处理。
进一步地，所述产品收集机组包括精整装置61和钢板堆垛工段；所述产品收集机组具有如下钢板精整模式中的至少一种：
钢板连续精整模式，其中，所述低温热处理机组输送过来的钢板经所述精整装置61精整处理后，通过所述钢板堆垛工段收集；
钢板连续不精整模式，其中，所述低温热处理机组输送过来的钢板直接进入所述钢板堆垛工段进行收集，例如通过上述旁通辊道实现钢板的直送；
钢板离线精整模式，其中，机组外钢板上线(可通过上述钢板上线装置5实现)，经所述精整装置61精整处理后，通过所述钢板堆垛工段收集。
在其中一个实施例中，上述高强钢板带热处理生产方法包括如下调质热处理工艺、淬火热处理工艺、回火热处理工艺和正火热处理工艺中的至少一种，优选为可以实现钢板的调质热处理、淬火热处理、回火热处理和正火热处理，根据所生产钢板的设计生产工艺选择相应的热处理模式即可。
(1)所述调质热处理工艺包括如下步骤：
S11，上游输送过来的钢板或钢带在所述第一加热装置22中按预定加热速度V1加热至预定温度T1，并保温t1时间，使钢材组织奥氏体化；
S12，第一加热装置22输出的钢材在所述第一冷却装置23中按预定冷却速度V2冷却至室温，以在钢材中得到淬火态马氏体组织；
S13，高温热处理机组输出的钢板在所述第二加热装置41中加热至预定温度T2，并保温t2时间，以在钢材中得到回火马氏体组织；
S14，第二加热装置41输出的钢板在所述第二冷却装置23中冷却至室温，获得目标产品。
优选地，S11中，目标为使钢材组织完全奥氏体化，得到均匀细小的等轴奥氏体组织。在其中一个实施例中，V1在5～100℃/s范围内；T1在900～1100℃范围内；t1在2～10min范围内。
优选地，S12中，目标为使钢材的组织为均匀细小的淬火态马氏体组织。在其中一个实施例中，V2在50～200℃/s范围内。
优选地，S13中，通过回火加热，可以消除钢材内应力，使钢材的组织为回火马氏体组织，提高钢材的塑韧性，并使钢材的强度、塑性和韧性合理匹配。在其中一个实施例中，T2在150～700℃范围内，t2在1～10min范围内。
优选地，S14中，目标产品的组织为室温下稳定的回火态组织；同时，在该步骤中，应避免冷却过程中回火脆性的产生。
(2)所述淬火热处理工艺包括如下步骤：
S21，上游输送过来的钢板或钢带在所述第一加热装置22中按预定加热速度V3加热至预定温度T3，并保温t3时间，使钢材组织奥氏体化；
S22，第一加热装置22输出的钢材在所述第一冷却装置23中按预定冷却速度V4冷却至室温，以在钢材中得到淬火态马氏体组织。
优选地，S21中，目标为使钢材组织完全奥氏体化，得到均匀细小的等轴奥氏体组织。在其中一个实施例中，V3在5～100℃/s范围内；T3在900～1100℃范围内；t3在2～10min范围内。
优选地，S22中，目标为使钢材的组织为均匀细小的淬火态马氏体组织。在其中一个实施例中，V4在50～200℃/s范围内。
(3)所述正火热处理工艺包括如下步骤：
S31，上游输送过来的钢板或钢带在所述第一加热装置22中按预定加热速度V5加热至预定温度T4，并保温t4时间，使钢材组织奥氏体化；
S32，第一加热装置22输出的钢材在所述第一冷却装置23中按预定冷却速度V6冷却至室温，以在钢材中得到正火态组织；
优选地，S31中，目标为使钢材组织完全奥氏体化，得到均匀细小的等轴奥氏体组织。在其中一个实施例中，V5在5～100℃/s范围内；T4在900～1100℃范围内；t4在2～10min范围内。
优选地，S32中，目标为使钢材的组织为均匀细小的正火态组织。在其中一个实施例中，V6在10～50℃/s范围内。
(4)所述回火热处理工艺包括如下步骤：
通过第一加热装置22将钢材加热至预定温度T5，并保温t5时间，以在钢材中得到回火马氏体组织，随后在第一冷却装置23中冷却至室温，获得目标产品；
或者，通过第二加热装置41将钢材加热至预定温度T5，并保温t5时间，以在钢材中得到回火马氏体组织，随后在第二冷却装置42中冷却至室温，获得目标产品。
优选地，通过回火加热，可以消除钢材内应力，使钢材的组织为回火马氏体组织，提高钢材的塑韧性，并使钢材的强度、塑性和韧性合理匹配；目标产品的组织为室温下稳定的回火态组织，同时，在冷却步骤中，应避免冷却过程中回火脆性的产生。在其中一个实施例中，T5在150～700℃范围内，t5在1～10min范围内。
本实施例提供的多功能高强钢板带热处理生产***及高强钢板带热处理生产方法，可适用于厚度规格1～30mm、宽度规格500～2200mm高强钢板带的热处理生产，产品最大屈服强度可达到1800MPa，产品表面平直度小于3/1000，表面质量表面清洁度小于Sa 2.5。
实施例三
本发明实施例提供一种带钢连续生产线上的带钢切割方法，可用于上述实施例一或实施例二中完成相应的剪切操作，例如第一剪切装置、第二剪切装置及第三剪切装置中的至少一种采用该带钢切割方法。
该带钢切割方法包括如下步骤：
在带钢运行通道上方布置切割头1031；
设计切割头运行路径，使切割头1031在带钢长度方向上保持与带钢随动，并且在带钢宽度方向上相对于带钢作横移切割运动；
当带钢运行到设定位置时，所述切割头1031按所设计的切割头运行路径活动，对带钢进行切割。
其中，可以采用热切割方式或水切割方式，热切割方式优选为采用激光切割方式，相应地，所述切割头1031为激光切割头；对于水切割方式，上述切割头1031对应地为水切割头/ 水刀。
显然地，上述切割头1031需要能够移动，相应地，所述切割头1031配置有切割头驱动机构，所述切割头驱动机构具有驱动所述切割头1031在带钢运行通道长度方向上运动的第一驱动行程以及驱动所述切割头1031在带钢运行通道宽度方向上运动的第二驱动行程。在其中一个实施例中，如图3，采用龙门式切割机，具体包括：
机床主机部分：包括龙门架1033和活动座，龙门架1033可以沿带钢运行通道长度方向滑动，实现切割头1031在X向的运动，活动座能在龙门架1033上横移，实现切割头1031在Y向的运动，进一步还可设置活动座能相对于龙门架1033升降，实现切割头1031在Z向的运动，可以辅助聚焦，提高切割头1031的聚焦效率和聚焦精度。龙门架1033的驱动以及活动座的驱动优选为采用伺服电机，能按照控制程序正确而精准的进行驱动；激光器1032即安装在上述活动座上，激光器1032发出的激光由切割头1031出射至带钢表面，实现带钢切割操作；
数控***：控制机床主机实现切割头1031的X向、Y向、Z向运动，同时也控制激光器1032的输出功率。
进一步地，上述切割机还包括抽风除尘机构，将加工时产生的烟尘和粉尘抽除并进行除尘处理，使废气排放符合环保要求。
进一步地，在带钢输送通道下方还设有废料收集单元，该废料收集单元可配置排渣设备，便于将收集的废料及时排出。
如图5，由于切割头1031同时具有带钢长度方向上的运动和带钢宽度方向上的运动，呈现出的切割头运行路径是相对于带钢长度方向具有一夹角的斜向运行路径。
其中，上述切割头运行路径的设计考虑的因素主要包括带钢规格、带钢运行速度和切割时间等，由带钢规格可以确定切割头1031的起始运行位置，带钢运行速度则主要决定切割头1031的X向移动速度，切割时间要求结合带钢规格则能确定切割头1031的Y向移动速度。针对不同的工况，切割头运行路径会有差异，但所有切割头运行路径会在切割头1031的两条边界运行路径范围之内(如图5所示)。
可以理解地，“使切割头1031在带钢长度方向上保持与带钢随动”，即需要使切割头1031的X向移动速度与带钢运行速度保持一致。带钢运行速度是由带钢输送装置101所控制的，因此可使切割头驱动机构与带钢输送装置101联锁控制，以保证上述随动要求，避免造成带钢废料。
基于上述方法，本实施例可以实现带钢连续生产线上的带钢在线连续切割操作，无需停剪或飞剪，保证带钢生产的可靠性和顺畅性，尤其适用于高强钢板的在线连续切割作业。
进一步优化上述方法，如图5，根据不同工况下的切割头运行路径所限定的切割头运行范围，将带钢运行通道划分为切割区域10101和非切割区域10102，对切割区域10101内的带钢输送装置101进行保护设计。基于该设计，能较好地保护带钢输送装置101，对切割区域10101和非切割区域10102的带钢输送装置101进行匹配性设计，可以有效地降低设备成本和维护成本。
在其中一个实施例中，在切割区域10101，带钢输送装置101的适于与带钢接触的传送表面采用耐激光辐照的材料制成，例如在传送表面镀铜或形成其他耐激光辐照的材料层。上述结构能较好地保护带钢输送装置101，避免激光穿过带钢而烧蚀带钢输送装置101，以及避免带钢输送装置101出现表面缺陷而影响带钢表面质量。
在其中一个实施例中，如图4和图5，在切割区域10101，带钢输送装置101包括沿带钢运行通道长度方向依次排列的多个输送单元，每个输送单元包括安装在传动辊轴1011上的至少一个第一输送滚盘1012；传动辊轴1011上安装有多个第一输送滚盘1012时，各第一输送滚盘1012在该传动辊轴1011上依次间隔排列。
将各第一输送滚盘1012间隔布置，可以减少可能出现在切割介质影响范围(例如激光辐照范围)内的带钢输送设备，从而相应地减少带钢切割过程中的带钢输送装置101的损伤。另外，采用第一输送滚盘1012作为输送设备，在保证对带钢的可靠输送要求的前提下，第一输送滚盘1012的更换也非常方便，将标准化生产的新的第一输送滚盘1012替换出现缺陷的第一输送滚盘1012即可，避免传统的辊式输送设备需要更换整个输送辊的情况，可以降低维护成本；相应地，第一输送滚盘1012可拆卸地固定安装在传动辊轴1011上。
在上述“传送表面采用耐激光辐照的材料制成”的方案中，相应地，第一输送滚盘1012的外缘表面采用耐激光辐照的材料制成即可，也能显著地减少所需的耐激光辐照材料耗量。
在其中一个实施例中，如图4和图5，上述第一输送滚盘1012中，其用于与带钢接触的轮缘环的截面呈纺锤形，也即该轮缘环从内环向外环方向呈渐缩结构，基于该结构，可进一步减小第一输送滚盘1012与带钢的接触范围，也即减小上述传送表面的面积，从而减少切割介质对带钢输送设备所造成的损伤。
上述第一输送滚盘1012可进一步包括芯环，该芯环套装在传动辊轴1011上，上述轮缘环套装在该芯环上；其中，轮缘环与芯环之间优选为可拆卸连接，例如通过转接板将二者连接起来，转接板与轮缘环之间可通过螺栓等连接，转接板可焊接固定在芯环上，也可通过螺栓固定在芯环上。基于上述结构，可便于第一输送滚盘1012的维护，即只需更换轮缘环即可，能有效地降低维护成本。
进一步地，如图4，在切割区域10101内，裸露的传动辊轴1011上(即未套装第一输送 滚盘1012的辊轴轴段上)套设有保护管1015，防止切割过程中切割介质损伤该传动辊轴1011，进一步降低维护成本。
进一步优选地，如图4和图5，所述传动辊轴1011延伸至非切割区域10102的轴段上安装有多个第二输送滚盘1013。第二输送滚盘1013的外周面优选为是圆柱环面，与带钢具有相对较大的接触面积，保证对带钢的可靠输送，同时可提高传动辊轴1011的各个轴段受力均匀性，避免传动辊轴1011发生扭转变形等缺陷。
其中，传动辊轴1011上的各输送滚盘等间距排布，防止带钢跑偏。
可以理解地，上述传动辊轴1011的轴线平行于带钢运行通道宽度方向，第一输送滚盘1012和第二输送滚盘1013优选为同轴安装在传动辊轴1011上。上述传动辊轴1011连接有驱动其绕自身轴线旋转的输送驱动机构1014，该输送驱动机构1014可采用齿轮马达或电机，优选为采用伺服马达或伺服电机。
优选地，切割工位前后的带钢输送装置101也采用传动辊轴1011套装多个输送滚盘的结构形式，在带钢运行通道长度方向上，各传动辊轴1011优选为等间距依次排列。进一步地，如图5，各组输送驱动机构1014分别布置在带钢输送通道的两侧，进一步优选为同侧相邻的两组输送驱动机构1014之间具有一个传动辊轴1011；基于该设计，可以有效地防止带钢跑偏。
在其中一个实施例中，对带钢进行切割时，对切割缝两侧的带钢施与压力，以防止切断的带钢向上反弹，从而较好地保护切割设备。可以相应地配置带钢压紧机构102，其中，为配合带钢的运行和切割头1031的运行，该带钢压紧机构102的施压部应能保持与带钢随动。
在其中一个实施例中，上述带钢压紧机构102配置X向驱动结构，例如采用带有行走机构的压紧框架1021并配备行走驱动结构(例如电机)，该压紧框架1021可与龙门式切割机的龙门架1033共用X向导轨，也可单独为其配置X向导轨；相应地，需在切割机的前后两侧分别设置带钢压紧机构102。在另外的实施例中，该带钢压紧机构102与切割机集成安装，例如上述压紧框架1021安装在龙门式切割机的龙门架1033上，由于需要对切割缝两侧的带钢分别压紧，因此可在龙门架1033的前后两侧分别设置安装支架，用以安装压紧框架1021。
优选地，如图3和图6，上述带钢压紧机构102包括压梁1022和用于驱动压梁1022升降的压下驱动结构1023，该压下驱动结构1023可以驱动压梁1022在工作位与待机位之间活动，在工作位，压梁1022压靠在带钢表面，待机位则位于工作位上方。其中，压梁1022可采用板面平行于水平面的压板，当然压辊等也适用于本实施例中。上述压下驱动结构1023可采用气缸、液压缸等直线驱动设备，或采用电机+传动组件等驱动方式。上述压下驱动结构1023安装在压紧框架1021上并与压梁1022连接。
优选地，如图6，在压紧框架1021上设有导向结构，用于对压梁1022的升降运动进行导向，提高压梁1022的升降平稳性和可靠性；该导向结构可采用导向杆10241-导向套10242的导向方式，也可采用导向滑轨-导向滑块的导向方式，此处不作一一例举。本实施例中，如图6，在压梁1022上安装多个导向杆10241，在压紧框架1021上相应地设置多个导向孔；进一步可在导向孔内安装导向套10242，优选地，至少部分导向套10242采用自润滑套。
其中，可在导向杆10241上设置上限位块，用以限制导向杆10241的下降行程，从而可以限制压梁1022的下降行程，防止压梁1022与压紧框架1021分离；还可在导向杆10241上设置下限位块，用以限制导向杆10241和压梁1022的上升行程。
进一步地，如图6，上述带钢压紧机构102还包括缓冲结构，该缓冲结构设置在压梁1022与压紧框架1021之间，一方面可以在对带钢施与压力时提高压力自适应性，另一方面，可以有效地缓冲带钢的反弹作用力，减轻对压下驱动结构1023等的冲击。在其中一个实施例中，如图6，上述缓冲结构包括多组缓冲弹簧1025，缓冲弹簧1025的顶端与压紧框架1021抵接、底端与压梁1022抵接；在上述设有导向杆10241的方案中，可使缓冲弹簧1025套设在导向杆10241上，可以约束缓冲弹簧1025仅发生竖向伸缩活动。进一步地，在压紧框架1021的底部设有多个沉槽，沉槽与缓冲弹簧1025数量相同并且一一对应配置，缓冲弹簧1025的顶端收容在对应的沉槽内，可以提高缓冲弹簧1025的竖向伸缩活动的平稳性和可靠性；在压紧框架1021上设置多个导向孔的方案中，该导向孔相应地可采用上窄下宽的阶梯孔，该阶梯孔的大直径孔段即构成为上述的沉槽。
在其中一个实施例中，如图7，在压紧框架1021上还设有导向板1026，该导向板1026安装在压紧框架1021的前端(也即来钢侧端部)，该导向板1026的底端优选为不高于压梁待机位所在水平面。该导向板1026的底面优选为是倾斜导向面，该倾斜导向面自导向板1026的前端向后端向下倾斜(也即该导向面的前端位于后端的上方)。当带头通过时，导向板1026可以防止带头上翘过大而损坏压板，并且能辅助穿带，提高生产效率。对于切割机前后分别设有压紧框架1021的情况，优选为仅对切割机前侧的压紧框架1021配置导向板1026。
在其中一个实施例中，上述压梁1022为电磁铁制成的梁体，或者在压梁1022上设有电磁铁，该电磁铁的控制电源可安装在压紧框架1021上，也可以通过压紧框架1021布线而与外部电源连接。基于上述结构，在压梁1022压下时，电磁铁得电，可以使压梁1022吸附压靠在带钢表面，显著地提高对带钢的压紧效果和运行同步性。
相应地，本发明实施例还提供一种带钢切割装置，可用于上述实施例一或实施例二中，例如作为实施例一中的第一剪切装置/第二剪切装置/第三剪切装置。
该带钢切割装置包括：
布置在带钢运行通道上方的切割头1031，所述切割头1031配置有切割头驱动机构，所述切割头驱动机构具有驱动所述切割头1031在带钢运行通道长度方向上运动的第一驱动行程以及驱动所述切割头1031在带钢运行通道宽度方向上运动的第二驱动行程；
控制器，所述控制器用于接收切割指令，并在带钢运行到设定位置时控制所述切割头驱动机构工作以使所述切割头1031按预设的切割头运行路径活动并对带钢进行切割，所述切割头运行路径满足使切割头1031在带钢长度方向上保持与带钢随动并且在带钢宽度方向上相对于带钢作横移切割运动。
其中，上述控制器可集成至生产线的中控室中。
上述切割头1031优选为是激光切割头。
上述带钢切割装置的相关组成及结构可参见前述相关内容，此处不作赘述。
实施例四
本发明实施例提供一种钢卷开卷机组，可用于上述实施例一中作为其中的开卷装置。
如图8-图10，该钢卷开卷机组包括卷筒、带钢夹送装置203、用于将带头从卷筒导引至带钢夹送装置203处的穿带导板201以及安装在车间基础上的支撑架，所述支撑架上设有深弯辊2051以及用于驱动所述深弯辊2051对带钢进行深弯处理的深弯驱动装置，所述深弯驱动装置包括平移座、用于驱动平移座在所述支撑架上水平移动的平移驱动机构2052以及用于驱动深弯辊2051上下摆动的深弯摆动驱动机构2053，深弯辊辊架20511铰接于所述平移座上，所述深弯摆动驱动机构2053安装在所述平移座上并与所述深弯辊辊架20511连接，平移驱动机构2052的驱动行程与所述深弯摆动驱动机构2053的驱动行程配合满足：深弯辊辊体20512具有待机位、深弯位以及压合在穿带导板201上的带钢表面的穿带位。
上述带钢夹送装置203可采用夹送辊，其为本领域常规设备，具体结构此处不作赘述。
由于深弯辊2051能够平移和上下摆动，因此能够适应不同钢种的钢卷以及适应不同卷径，显然也能根据卷径的逐渐变化调整自身位置，提高带钢质量，保证生产顺行。其中，上述平移驱动机构2052可采用气缸、液压缸等直线驱动设备，或者采用电机+传动机构的驱动方式；上述深弯摆动驱动机构2053同样可采用液压缸等直线驱动设备，例如，该深弯摆动驱动机构2053的缸体铰接于支撑架上，该深弯摆动驱动机构2053的输出轴与深弯辊辊架20511铰接。
本实施例中，深弯辊2051可以满足常规深弯功能，也即该深弯辊2051能够在正常送卷时去除带钢表面的氧化铁皮、使带钢深度弯曲以至少部分消除带钢的残余应力等。除此以外，由于深弯辊辊体20512还具有压合在穿带导板201上的带钢表面的穿带位，因此，深弯辊2051还能在穿带时改善带头板形，从而提高穿带效率，保证生产顺行；本实施例充分利用和发掘 深弯辊2051的作用，使其具有带头处理功能，可减少现场设备数量和投资成本，利于生产的顺畅性和安全性。
在实际生产中，当出现带头翘头严重/扣头严重等情况时，通过驱使深弯辊辊体20512运行至其穿带位，通过深弯辊辊体20512施与下压力，可以实现对带头缺陷的处理。
其中，平移座的平移行程延伸至穿带导板201的导引通道的正上方，具体的平移座的平移行程末端可以根据穿带导板201的导引方式及穿带导板201的具体结构等进行确定，在保证不与带钢夹送装置203等发生冲突的情况下，可以使平移座的平移行程具有一定的裕量，使深弯辊辊体20512能在多位置下压以对带头进行处理。
如图11，上述深弯辊2051包括深弯辊辊架20511、深弯辊辊座20513以及安装于深弯辊辊座20513上的深弯辊辊体20512。在其中一个实施例中，于所述深弯辊辊架20511上设有对中导轨和对中驱动单元20514，深弯辊辊座20513滑动设置在所述对中导轨上并且与所述对中驱动单元20514连接。其中，该对中导轨的导向方向平行于深弯辊辊体20512的轴向，通过对中驱动单元20514可以驱动深弯辊辊体20512作轴向平移运动；上述对中驱动单元20514可采用液压缸、气缸等直线驱动设备。基于上述结构，能够调整深弯辊辊体20512的位置，可以对带钢进行纠偏。
进一步地，开卷机组配置有CPC(Center Position Control，中心位置控制)对中装置，该CPC对中装置为本领域现有设备，具体结构此处不作赘述。上述对中驱动单元20514优选为与该CPC对中装置联锁控制，保证对带钢的纠偏效果。
上述穿带导板201优选为采用活动导板，灵活度高、所需布置空间小，其能托住带头并能将带头导引至带钢夹送装置203处。
在其中一个实施例中，如图12，所述穿带导板201包括摆动架2012、升降座和导板本体2011，所述导板本体2011的中部通过第一铰轴铰接于所述升降座上并且连接有用于驱动该导板本体2011绕第一铰轴转动的导板转动驱动机构2014，所述升降座活动设置于所述摆动架2012上，并于所述摆动架2012上设有用于驱动所述升降座作升降运动的导板升降驱动机构2015；所述摆动架2012配置有用于驱动其绕第二铰轴摆动的导板摆动驱动机构2013，所述第一铰轴与所述第二铰轴的轴线均平行于卷筒的轴线。
其中，优选地，所述导板本体2011的靠近卷筒的一端设有开卷刀20113，从而能用于开卷，将开卷刀20113集成在穿带导板201上，能显著地减少现场设备数量，便于设备布置和管理。
其中，优选地，上述导板本体2011包括分列于第一铰轴两侧的第一导板段20111和第二导板段20112，第一导板段20111位于第一铰轴的靠近卷筒的一侧；当设有开卷刀20113时， 该开卷刀20113设于第一导板段20111的相应侧端部。
优选地，所述穿带导板201的导向面为回旋镖形导向面，也即第一导向板段的导向面与第二导向板段的导向面拼接形成回旋镖形导向面，可以顺畅地进行穿带导引工作。
其中，通过控制导板本体2011的转动角度可以控制第一导向板段和第二导向板段的位置，使第一导向板段和第二导向板段切换地托住带头，配合摆动架2012的摆动和升降座的升降，能够可靠地完成钢卷至带钢夹送装置203之间的带头导引操作。
其中，优选地，导板转动驱动机构2014与第二导向板段连接，方便导板转动驱动机构2014的布置以及对导板本体2011的驱动。上述导板转动驱动机构2014可采用液压缸等直线驱动设备。在其中一个实施例中，如图12，上述导板转动驱动机构2014布置在车间基础上，具体地，所述导板转动驱动机构2014包括铰接于车间基础上的第一直线驱动单元，所述第一直线驱动单元的输出轴与导板本体2011铰接；相应地，该第一直线驱动单元可采用液压缸、气缸等。将导板转动驱动机构2014布置在车间基础上，而不是安装在摆动架2012上，一方面便于设备的布置，可以减少摆动架2012的重量，节约第一摆动驱动机构的能耗，另一方面，使导板本体2011的自转和随摆动架2012摆动这两个动作相互独立又相互配合，提高导板本体2011的控制灵活度和准确性。
上述导板升降驱动机构2015同样可采用液压缸等直线驱动设备。相应地，在摆动架2012上设有升降导轨，用以对升降座的升降运动进行导向和约束，可提高导板本体2011升降的平稳性。
上述导板摆动驱动机构2013同样可采用液压缸等直线驱动设备。在其中一个实施例中，该导板摆动驱动机构2013布置在车间基础上，具体地，所述导板摆动驱动机构2013包括铰接于车间基础上的第二直线驱动单元，所述第二直线驱动单元的输出轴与所述摆动架2012铰接。其中，优选地，摆动架2012的底端铰接在车间基础上，上述导板摆动驱动机构2013的输出端与该摆动架2012的中部铰接。
上述摆动架2012可以采用钢桁架结构，在保证结构强度的同时，能够显著地减轻其自重。
如图8-图10以及图12，进一步优选地，上述第二导板段20112上设有电磁铁20114，或者于第二导板段20112的导向面上开设有多个吸附孔并于第二导板段20112内形成有真空吸附腔。
对于第二导板段20112上设有电磁铁20114的情况，相应地，可在摆动架2012上布设电线并通过拖链等与外部电源连接；对于第二导板段20112上开设吸附孔的情况，相应地，可在摆动架2012上布设抽气管道并通过拖链等与外部的抽真空设备连接。
本实施例中，优选为采用在第二导板段20112上设置电磁铁20114的结构，设备布置及 走线都较为方便，工作可靠性高，通过控制电磁铁20114得电或失电即可，响应速度快。
本实施例通过在第二导板段20112上设置电磁铁20114或者开设吸附孔，使导板本体2011能够吸住带钢，在导板本体2011作转动或升降等动作时，能保证带头能够贴合在导板本体2011上，提高穿带操作的可靠性和穿带效率。设置电磁铁20114或采用真空吸附方式既便于设备的布置，减少设备占用空间和摆动架2012的重量，而且对带钢的吸附可靠性高、操作简便灵活，不会对过钢线造成干涉。
进一步地，如图8-图10，该开卷机组还包括压辊装置204，用于在开卷时压住带钢，以辅助完成开卷操作，现有的压辊装置204均适用于本实施例中，此处不作详述。
如图8-图10，本发明实施例提供一种钢卷开卷方法，基于上述钢卷开卷机组实施；
所述方法包括：
带头穿带时，判断是否需要改善带头板形；
当带头板形需要改善时，通过所述平移驱动机构2052和所述深弯摆动驱动机构2053配合，驱使深弯辊辊体20512压合在穿带导板201上的带头表面，以达到改善带头板形的目的。
其中，带头板形的判断可以人工判断，也可以在支撑架上设置板形识别装置以自动判断。
进一步地，所述穿带导板201采用摆动式结构，其中，所述穿带导板201在卷筒处承接带头后，向带钢夹送装置203处摆动，以实现穿带操作。该穿带导板201可以采用上述实施例一中的“包括摆动架2012、升降座和导板本体2011”的结构，此处不作赘述。
在其中一个实施例中，所述穿带导板201上设有电磁铁20114或真空吸附通道，用以吸附带钢，该结构在上述实施例一中也有述及，此处不作赘述；
所述穿带导板201摆动过程中，通过电磁铁20114或真空吸附通道吸附带头，避免带头从穿带导板201上滑脱；
和/或，改善带头板形时，通过电磁铁20114或真空吸附通道对带头施与吸附作用力，与深弯辊辊体20512的压力配合，以达到改善带头板形的目的。
其中，在带头处理时，由于穿带导板201可以吸附住带头，能够避免深弯辊辊体20512下压时带头由于板形不良而出现窜动等情况，能进一步提高带头处理效果。
当仅需要吸附带头以避免带头滑脱时，仅需相对较小的吸附力即可；当需要改善带头板形时，通过施与较大的吸附力，可以提高带头处理效果和效率。例如，对于电磁铁20114吸附的情况，通过控制电流强度即可，易于控制，并且能实现吸附力的量化控制，可适用于不同钢种或不同变形程度的带头处理。
另外，在带头处理时，通过平移驱动机构2052和深弯摆动驱动机构2053配合，使深弯辊辊体20512沿着穿带导板201的表面移动，相较于单点下压的情况，能有效地提高带头处 理效果，获得良好的带头板形。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种多功能高强钢板带热处理生产***，其特征在于，包括依次衔接的准备机组、高温热处理机组、低温热处理机组和产品收集机组；
    所述准备机组包括开卷装置和第一剪切装置；
    所述高温热处理机组包括依次衔接的第一加热装置、第一冷却装置、第二剪切装置和第一堆垛机；
    所述低温热处理机组包括至少一组低温热处理机构，所述低温热处理机构包括依次衔接的第二加热装置和第二冷却装置；有多组低温热处理机构时，各低温热处理机构并联布置；
    其中，所述第一剪切装置通过钢材输送通道与所述第一加热装置衔接，所述第一堆垛机通过钢板转运装置分别与各所述第二加热装置衔接；各所述第二冷却装置均与所述产品收集机组衔接。
  2. 如权利要求1所述的多功能高强钢板带热处理生产***，其特征在于：所述第一剪切装置与所述第一加热装置之间的钢材输送通道上设有至少一个第一钢板上下线工位，所述第一钢板上下线工位处设有能够对钢材输送通道进行钢板下线或钢板上线操作的第一钢板上下线装置。
  3. 如权利要求1所述的多功能高强钢板带热处理生产***，其特征在于：所述产品收集机组包括精整装置和钢板堆垛工段，各所述第二冷却装置均与所述精整装置的入料口衔接，所述精整装置的出料口与所述钢板堆垛工段衔接。
  4. 如权利要求3所述的多功能高强钢板带热处理生产***，其特征在于：每一所述第二冷却装置还通过旁通辊道与所述钢板堆垛工段衔接，所述旁通辊道的两端分别位于所述精整装置的入料侧和出料侧。
  5. 如权利要求3所述的多功能高强钢板带热处理生产***，其特征在于：精整装置入料侧的钢板输送辊道上设有钢板上线工位并且配置有钢板上线装置。
  6. 如权利要求1所述的多功能高强钢板带热处理生产***，其特征在于：每一所述第二加热装置配置有进料辊道，所述钢板转运装置分别与各所述进料辊道衔接；所述进料辊道上有第二钢板上下线工位，所述第二钢板上下线工位处设有能够对进料辊道进行钢板下线或钢板上线操作的第二钢板上下线装置。
  7. 一种高强钢板带热处理生产方法，其特征在于，基于权利要求1至6中任一项所述的多功能高强钢板带热处理生产***实施；
    所述方法包括卷-板连续热处理模式和板-板连续热处理模式；
    所述卷-板连续热处理模式下，原料钢卷经所述开卷装置开卷后，空过所述第一剪切装置，经所述第一加热装置和所述第一冷却装置处理后，通过所述第二剪切装置剪切成板，剪 切后的钢板经所述低温热处理机组处理后，进入所述产品收集机组；
    所述板-板连续热处理模式下，原料钢卷经所述开卷装置开卷后，通过所述第一剪切装置剪切成板，剪切后的钢板经所述第一加热装置和所述第一冷却装置处理后，空过所述第二剪切装置、经所述低温热处理机组处理后，进入所述产品收集机组。
  8. 如权利要求7所述的方法，其特征在于，还包括板-板离线热处理模式；
    所述板-板离线热处理模式包括：
    原料钢卷经所述开卷装置开卷后，通过所述第一剪切装置剪切成板，剪切后的钢板下线暂存；根据生产排产，使暂存的钢板上线，再经所述第一加热装置和所述第一冷却装置处理后，空过所述第二剪切装置、经所述低温热处理机组处理后，进入所述产品收集机组；
    和/或，在低温热处理机组，上游输送过来的钢板先下线暂存，根据生产排产，使暂存的钢板上线，再经第二加热装置和第二冷却装置处理后，进入所述产品收集机组。
  9. 如权利要求7所述的方法，其特征在于，所述产品收集机组包括精整装置和钢板堆垛工段；
    所述产品收集机组具有如下钢板精整模式中的至少一种：
    钢板连续精整模式，其中，所述低温热处理机组输送过来的钢板经所述精整装置精整处理后，通过所述钢板堆垛工段收集；
    钢板连续不精整模式，其中，所述低温热处理机组输送过来的钢板直接进入所述钢板堆垛工段进行收集；
    钢板离线精整模式，其中，机组外钢板上线，经所述精整装置精整处理后，通过所述钢板堆垛工段收集。
  10. 如权利要求7所述的方法，其特征在于，所述方法包括如下调质热处理工艺、淬火热处理工艺、回火热处理工艺和正火热处理工艺中的至少一种；
    所述调质热处理工艺包括如下步骤：
    S11，上游输送过来的钢板或钢带在所述第一加热装置中按预定加热速度V1加热至预定温度T1，并保温t1时间，使钢材组织奥氏体化；
    S12，第一加热装置输出的钢材在所述第一冷却装置中按预定冷却速度V2冷却至室温，以在钢材中得到淬火态马氏体组织；
    S13，高温热处理机组输出的钢板在所述第二加热装置中加热至预定温度T2，并保温t2时间，以在钢材中得到回火马氏体组织；
    S14，第二加热装置输出的钢板在所述第二冷却装置中冷却至室温，获得目标产品；
    所述淬火热处理工艺包括如下步骤：
    S21，上游输送过来的钢板或钢带在所述第一加热装置中按预定加热速度V3加热至预定 温度T3，并保温t3时间，使钢材组织奥氏体化；
    S22，第一加热装置输出的钢材在所述第一冷却装置中按预定冷却速度V4冷却至室温，以在钢材中得到淬火态马氏体组织；
    所述正火热处理工艺包括如下步骤：
    S31，上游输送过来的钢板或钢带在所述第一加热装置中按预定加热速度V5加热至预定温度T4，并保温t4时间，使钢材组织奥氏体化；
    S32，第一加热装置输出的钢材在所述第一冷却装置中按预定冷却速度V6冷却至室温，以在钢材中得到正火态组织；
    所述回火热处理工艺包括如下步骤：
    通过第一加热装置将钢材加热至预定温度T5，并保温t5时间，以在钢材中得到回火马氏体组织，随后在第一冷却装置中冷却至室温，获得目标产品；
    或者，通过第二加热装置将钢材加热至预定温度T5，并保温t5时间，以在钢材中得到回火马氏体组织，随后在第二冷却装置中冷却至室温，获得目标产品。
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