CN114959242A - Method for preventing edge damage of supporting roller of continuous annealing unit - Google Patents
Method for preventing edge damage of supporting roller of continuous annealing unit Download PDFInfo
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- CN114959242A CN114959242A CN202210589361.9A CN202210589361A CN114959242A CN 114959242 A CN114959242 A CN 114959242A CN 202210589361 A CN202210589361 A CN 202210589361A CN 114959242 A CN114959242 A CN 114959242A
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- 238000000137 annealing Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims 2
- 239000007921 spray Substances 0.000 abstract description 9
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/563—Rolls; Drums; Roll arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
本发明涉及连续退火机组技术领域，具体为一种防止连退机组支撑辊边部损伤的方法，包括采用以下步骤：步骤一、倒角磨削：在支撑辊的边部增加宽度为100 mm，角度为1.5°的磨削倒角；步骤二、调整凸度：将工作辊的凸度增加到0.07 mm；步骤三、喷洒平整液：在支撑辊的边部和工作辊的边部喷洒平整液。本发明通过倒角磨削，减小支撑辊边部有害接触区的接触压力和磨损，避免支撑辊边部损伤，并通过将工作辊的凸度增加到0.07 mm，降低工作辊与支撑辊边部的接触压力，减小边部磨损，便于板形控制，增加工作辊使用周期。本发明还通过增加平整液喷射清洗支撑辊和工作辊，降低支撑辊和工作辊的温度，并增加其润滑效果，改善板面质量。
The invention relates to the technical field of continuous annealing units, in particular to a method for preventing damage to the edge of a support roller of a continuous annealing unit. Grinding chamfer with an angle of 1.5°; Step 2. Adjust the crown: increase the crown of the work roll to 0.07 mm; Step 3. Spray leveling liquid: Spray the edge of the backup roll and the edge of the work roll with leveling liquid . The invention reduces the contact pressure and wear of the harmful contact area on the edge of the backup roll through chamfering grinding, avoids damage to the edge of the backup roll, and increases the crown of the work roll to 0.07 mm to reduce the edge of the work roll and the backup roll. It can reduce the contact pressure of the outer part, reduce the wear of the edge part, facilitate the control of the shape of the plate, and increase the service life of the work roll. The present invention also reduces the temperature of the support roller and the work roller by increasing the leveling liquid spray to clean the support roller and the work roller, and increases the lubricating effect thereof, thereby improving the quality of the board surface.
Description
技术领域technical field
本发明涉及连续退火机组技术领域，具体为一种防止连退机组支撑辊边部损伤的方法。The invention relates to the technical field of continuous annealing units, in particular to a method for preventing edge damage of support rollers of a continuous annealing unit.
背景技术Background technique
带钢经冷和后产生冷塑性变形，存在明显的冷加工硬化现象和极高的内应力，为了消除冷加工硬化和内应力，稳定组织，改善钢的性能，需要对冷轧后的带钢进行退火处理，通常为再结晶退大。钢材经过退火处理后，既可以改善工艺性能，又可以提高使用性能，从而更好的发挥其性能潜力。The cold-rolled strip produces cold plastic deformation after cooling, with obvious cold work hardening and extremely high internal stress. In order to eliminate cold work hardening and internal stress, stabilize the structure and improve the performance of the steel, it is necessary to anneal the cold-rolled strip. Treatment, usually recrystallization and downsize. After the steel is annealed, it can not only improve the process performance, but also improve the performance, so as to better exert its performance potential.
冷轧带钢的再结品退火，一般分为慢速加热退火和快速加热退火。慢速加热退火在罩式退火炉中进行，属间歇式生产方式，快速加热退火在连续退火炉中进行，属连续式生产方式，连续退火机组就是利用连续退火炉，将清洗、退火、平整、检查和精整等工序联结起来，实现连续式生产而逐渐发展起来。The re-annealing of cold-rolled strips is generally divided into slow heating annealing and rapid heating annealing. The slow heating annealing is carried out in a bell annealing furnace, which is a batch production method, and the rapid heating annealing is carried out in a continuous annealing furnace, which is a continuous production method. It has gradually developed by linking inspection and finishing processes to realize continuous production.
在连续退火机组的平整机段，由于板材硬度较大，会导致平整机轧制力较大，致使其支撑辊的边部容易被啃伤，影响连续退火生产线的产量和质量控制，现有的连续退火机组不得不降低支撑辊的使用周期，减小平整机轧制力。In the tempering section of the continuous annealing unit, due to the high hardness of the plate, the rolling force of the tempering machine will be large, so that the edge of the support roller is easily gnawed, which affects the output and quality control of the continuous annealing production line. Some continuous annealing units have to reduce the life cycle of the backup rolls and reduce the rolling force of the skin pass mill.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种防止连退机组支撑辊边部损伤的方法，以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a method for preventing damage to the edge of the support roller of the continuous retreat unit, so as to solve the problems raised in the above-mentioned background art.
为实现上述目的，本发明提供如下技术方案：一种防止连退机组支撑辊边部损伤的方法，包括采用以下步骤：In order to achieve the above object, the present invention provides the following technical solutions: a method for preventing damage to the edge of the support roller of the continuous retreat unit, comprising the following steps:
步骤一、倒角磨削：在支撑辊的边部增加宽度为100 mm，角度为1.5°的磨削倒角；Step 1. Chamfer grinding: add a grinding chamfer with a width of 100 mm and an angle of 1.5° to the edge of the support roller;
步骤二、调整凸度：将工作辊的凸度增加到0.07 mm；Step 2. Adjust the crown: increase the crown of the work roll to 0.07 mm;
步骤三、喷洒平整液：在支撑辊的边部和工作辊的边部喷洒平整液。Step 3. Spray leveling liquid: spray leveling liquid on the edge of the backup roll and the edge of the work roll.
可选的，步骤三中，所述平整液由喷嘴喷出，所述喷嘴为扇形喷嘴。Optionally, in step 3, the leveling liquid is sprayed from a nozzle, and the nozzle is a fan-shaped nozzle.
可选的，步骤三中，所述平整液的温度为32-40℃。Optionally, in step 3, the temperature of the leveling solution is 32-40°C.
与现有技术相比，本发明具备以下有益效果：本发明通过倒角磨削，减小支撑辊边部有害接触区的接触压力和磨损，避免支撑辊边部损伤，并通过将工作辊的凸度增加到0.07 mm，降低工作辊与支撑辊边部的接触压力，减小边部磨损。此外，增加工作辊凸度尤其是支撑辊使用周期后期，可弥补由于支撑辊的磨损而导致的负凸度，便于板形控制，增加工作辊使用周期。本发明还通过增加平整液喷射清洗支撑辊和工作辊，降低支撑辊和工作辊的温度，并增加其润滑效果，改善板面质量。Compared with the prior art, the present invention has the following beneficial effects: the present invention reduces the contact pressure and wear of the harmful contact area on the edge of the backup roll through chamfering grinding, avoids damage to the edge of the backup roll, and reduces the damage to the edge of the backup roll. The crown is increased to 0.07 mm, which reduces the contact pressure between the work roll and the edge of the backup roll and reduces edge wear. In addition, increasing the crown of the work roll, especially in the later period of the backup roll, can make up for the negative crown caused by the wear of the backup roll, which is convenient for shape control and increases the life of the work roll. The invention also increases the leveling liquid to spray and clean the support rollers and the work rollers, so as to reduce the temperature of the support rollers and the work rollers, increase their lubricating effect, and improve the quality of the board surface.
附图说明Description of drawings
图1为本发明中倒角结构示意图。FIG. 1 is a schematic diagram of a chamfering structure in the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，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他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
实施例：本发明提供了一种防止连退机组支撑辊边部损伤的方法，包括采用以下步骤：Embodiment: The present invention provides a method for preventing damage to the edge of the support roller of the continuous withdrawal unit, including the following steps:
步骤一、倒角磨削：在支撑辊的边部增加宽度为100 mm，角度为1.5°的磨削倒角；Step 1. Chamfer grinding: add a grinding chamfer with a width of 100 mm and an angle of 1.5° to the edge of the support roller;
步骤二、调整凸度：将工作辊的凸度增加到0.07 mm；Step 2. Adjust the crown: increase the crown of the work roll to 0.07 mm;
步骤三、喷洒平整液：在支撑辊的边部和工作辊的边部喷洒平整液。Step 3. Spray leveling liquid: spray leveling liquid on the edge of the backup roll and the edge of the work roll.
在上述实施例的基础之上，本实施例中平整液的温度为32-40℃，且平整液由喷嘴喷出，喷嘴为扇形喷嘴。On the basis of the above embodiment, in this embodiment, the temperature of the leveling liquid is 32-40° C., and the leveling liquid is sprayed from a nozzle, and the nozzle is a fan-shaped nozzle.
请参阅图1，图1中A的大小为100 mm，β的大小为1.5°。See Figure 1, where A is 100 mm in size and β is 1.5° in size.
本发明通过倒角磨削，减小支撑辊边部有害接触区的接触压力和磨损，避免支撑辊边部损伤，并通过将工作辊的凸度增加到0.07 mm，降低工作辊与支撑辊边部的接触压力，减小边部磨损。此外，增加工作辊凸度尤其是支撑辊使用周期后期，可弥补由于支撑辊的磨损而导致的负凸度，便于板形控制，增加工作辊使用周期。本发明还通过增加平整液喷射清洗支撑辊和工作辊，降低支撑辊和工作辊的温度，并增加其润滑效果，改善板面质量。The invention reduces the contact pressure and wear of the harmful contact area on the edge of the backup roll through chamfering grinding, avoids damage to the edge of the backup roll, and increases the crown of the work roll to 0.07 mm, reducing the edge of the work roll and the backup roll. The contact pressure of the part can reduce the wear of the edge. In addition, increasing the crown of the work roll, especially in the later period of the backup roll, can make up for the negative crown caused by the wear of the backup roll, which is convenient for shape control and increases the life of the work roll. The invention also increases the leveling liquid to spray and clean the support rollers and the work rollers, so as to reduce the temperature of the support rollers and the work rollers, increase their lubricating effect, and improve the quality of the board surface.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210589361.9A CN114959242A (en) | 2022-05-27 | 2022-05-27 | Method for preventing edge damage of supporting roller of continuous annealing unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210589361.9A CN114959242A (en) | 2022-05-27 | 2022-05-27 | Method for preventing edge damage of supporting roller of continuous annealing unit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071003A (en) * | 1993-06-14 | 1995-01-06 | Kawasaki Steel Corp | Manufacture of cold rolled stainless steel strip |
| KR19990017267U (en) * | 1997-10-31 | 1999-05-25 | 이구택 | Wear compensation device of rolling mill support roll |
| CN202021201U (en) * | 2011-01-29 | 2011-11-02 | 首钢总公司 | Roll contour configuration structure of hot rolling temper mill |
| CN102319750A (en) * | 2011-08-18 | 2012-01-18 | 中冶南方工程技术有限公司 | Water spray leveling method in cold milling wet leveling production |
| CN203830430U (en) * | 2013-09-29 | 2014-09-17 | 上海梅山钢铁股份有限公司 | Online efficient sweeping device of cold rolling temper mill |
| US20170080467A1 (en) * | 2015-09-21 | 2017-03-23 | Novelis Inc. | Pre-heating and thermal control of work rolls in metal rolling processes and control systems thereof |
| CN107604302A (en) * | 2013-10-15 | 2018-01-19 | 大日本印刷株式会社 | Metallic plate, the manufacture method of metallic plate and the method using metallic plate manufacture deposition mask |
-
2022
- 2022-05-27 CN CN202210589361.9A patent/CN114959242A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071003A (en) * | 1993-06-14 | 1995-01-06 | Kawasaki Steel Corp | Manufacture of cold rolled stainless steel strip |
| KR19990017267U (en) * | 1997-10-31 | 1999-05-25 | 이구택 | Wear compensation device of rolling mill support roll |
| CN202021201U (en) * | 2011-01-29 | 2011-11-02 | 首钢总公司 | Roll contour configuration structure of hot rolling temper mill |
| CN102319750A (en) * | 2011-08-18 | 2012-01-18 | 中冶南方工程技术有限公司 | Water spray leveling method in cold milling wet leveling production |
| CN203830430U (en) * | 2013-09-29 | 2014-09-17 | 上海梅山钢铁股份有限公司 | Online efficient sweeping device of cold rolling temper mill |
| CN107604302A (en) * | 2013-10-15 | 2018-01-19 | 大日本印刷株式会社 | Metallic plate, the manufacture method of metallic plate and the method using metallic plate manufacture deposition mask |
| US20170080467A1 (en) * | 2015-09-21 | 2017-03-23 | Novelis Inc. | Pre-heating and thermal control of work rolls in metal rolling processes and control systems thereof |
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