CN111254375A - Production method of high-lubricity surface aluminum-zinc-plated plate - Google Patents
Production method of high-lubricity surface aluminum-zinc-plated plate Download PDFInfo
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Abstract
本发明涉及冷轧技术领域，尤其涉及一种高润滑性表面镀铝锌板的生产方法。本发明改进耐指纹药液的配方，配方中增加聚四氟乙烯及交联聚四氟乙烯等固体润滑剂，增加耐指纹膜中的润滑成分。提高钝化膜厚，增加加工时的有效润滑介质。进而提高了镀铝锌板润滑性，降低摩擦系数。本发明对钝化段之后的主传动辊系表面材质进行改进，在检查台转向辊上新增加带传动的压辊，并优化压辊介入的控制程序，优化钝化段之后的张力调整方式方法，形成固定的联动张力调整机制，避免张力差过大及分布不均匀造成的辊子转矩大形成打滑问题，保证机组稳定运行及避免带钢表面打滑划伤缺陷。The invention relates to the technical field of cold rolling, in particular to a method for producing an aluminum-zinc-coated sheet with a high lubricity surface. The invention improves the formula of the anti-fingerprint liquid medicine, adds solid lubricants such as polytetrafluoroethylene and cross-linked polytetrafluoroethylene in the formula, and increases the lubricating components in the anti-fingerprint film. Increase the passivation film thickness and increase the effective lubricating medium during processing. In turn, the lubricity of the galvanized sheet is improved and the friction coefficient is reduced. The invention improves the surface material of the main drive roller system after the passivation section, newly adds a pressure roller with transmission on the turning roller of the inspection table, optimizes the control program of the pressure roller intervention, and optimizes the tension adjustment method after the passivation section. , to form a fixed linkage tension adjustment mechanism, to avoid the problem of slippage caused by the large torque of the rollers caused by excessive tension difference and uneven distribution, to ensure the stable operation of the unit and to avoid slipping and scratching defects on the surface of the strip.
Description
技术领域technical field
本发明涉及冷轧技术领域，尤其涉及一种高润滑性表面镀铝锌板的生产方法。The invention relates to the technical field of cold rolling, in particular to a method for producing an aluminum-zinc-coated sheet with a high lubricity surface.
背景技术Background technique
镀铝锌板一直存在表面摩擦系数偏高，加工时润滑性差的问题，上述缺陷极易造成冲压裂、冲压或折弯时接触面发黑。Aluminum-zinc-plated sheets have always had the problems of high surface friction coefficient and poor lubricity during processing. The above defects can easily cause punching cracks, blackening of the contact surface during punching or bending.
通过调整耐指纹药液的成分，增加固体润滑剂后，耐指纹镀铝锌表面摩擦系数显著降低，加工时的润滑性显著提高。但是，由于镀铝锌板表面摩擦系数降低，导致钝化段之后的带钢与主传动辊系辊面之间的摩擦力急剧减小，进而出现钢板与辊系之间打滑造成的停机和镀铝锌板表面划伤问题，导致机组运行稳定性差，钢板表面质量达不到要求。By adjusting the composition of the anti-fingerprint liquid and adding the solid lubricant, the friction coefficient of the anti-fingerprint aluminum-zinc plated surface is significantly reduced, and the lubricity during processing is significantly improved. However, due to the reduction of the friction coefficient of the surface of the galvanized sheet, the friction between the strip after the passivation section and the roll surface of the main drive roll system is sharply reduced, and the downtime and plating caused by slippage between the steel plate and the roll system occur. The problem of scratches on the surface of the aluminum-zinc plate leads to poor operation stability of the unit, and the surface quality of the steel plate does not meet the requirements.
发明内容SUMMARY OF THE INVENTION
为了克服现有技术的不足，一种高润滑性表面镀铝锌板的生产方法，既能提高镀铝锌板的润滑性，又能保证镀铝锌机组生产高镀铝锌板时不产生钢板与辊系之间打滑造成的停机和镀铝锌板表面划伤问题，保证机组运行稳定和产品表面质量符合要求。In order to overcome the deficiencies of the prior art, a method for producing a galvanized sheet with a high lubricity surface can not only improve the lubricity of the galvanized sheet, but also ensure that no steel plate is produced when the galvanized unit produces the high galvanized sheet The problem of downtime and scratches on the surface of the galvanized sheet caused by slippage between the roller system ensures that the unit runs stably and the surface quality of the product meets the requirements.
一种高润滑性表面镀铝锌板的生产方法，具体包括：A method for producing a galvanized sheet with a high lubricity surface, specifically comprising:
1)提高镀铝锌板润滑性，降低摩擦系数；1) Improve the lubricity of the galvanized sheet and reduce the friction coefficient;
A、改进耐指纹药液的配方，耐指纹药液包括重量份数的如下组分：A. Improve the formula of the anti-fingerprint liquid medicine. The anti-fingerprint liquid medicine includes the following components in parts by weight:
水溶性聚氨酯15-40份；15-40 parts of water-soluble polyurethane;
丙烯酸有机硅共聚物乳液25-45份；25-45 parts of acrylic silicone copolymer emulsion;
磷化物1-15份；1-15 parts of phosphide;
含环氧基的化合物2-15份；2-15 parts of compounds containing epoxy group;
硅烷偶联剂1-10份；1-10 parts of silane coupling agent;
纳米级SiO2水溶液1-15份；1-15 parts of nano-scale SiO 2 aqueous solution;
聚四氟乙烯15-40份；15-40 parts of PTFE;
交联聚四氟乙烯25-45份；25-45 parts of cross-linked polytetrafluoroethylene;
B、提高钝化膜厚；B. Increase the passivation film thickness;
钝化膜厚为1.2um-1.6um；Passivation film thickness is 1.2um-1.6um;
2)避免辊面与带钢之间打滑、保证机组稳定运行及避免带钢表面打滑划伤；2) Avoid slippage between the roll surface and the strip, ensure the stable operation of the unit and avoid slippage and scratches on the strip surface;
A、钝化段之后的主传动辊系表面全部采用碳化钨涂层处理，辊面粗糙度Ra不低于4.5um；A. The surface of the main drive roller system after the passivation section is all treated with tungsten carbide coating, and the roller surface roughness Ra is not less than 4.5um;
B、在检查台转向辊上方设置压辊，在机组断卷减速之前5秒提前压下并跟随转动，直至机组重新穿带升速后恢复到稳定工艺速度时5秒后再抬起；B. Set the pressure roller above the turning roller of the inspection table, press down and follow the rotation 5 seconds before the unit breaks and decelerates, and then lift it up 5 seconds after the unit re-threads the belt and returns to the stable process speed;
C、优化钝化段之后的张力调整方式方法，形成固定的联动张力调整机制：C. Optimize the tension adjustment method after the passivation section to form a fixed linkage tension adjustment mechanism:
a、保持钝化段与检查段、出口活套段的张力差值在800daN之内；a. Keep the tension difference between the passivation section, the inspection section and the exit looper section within 800daN;
b、张力调整时保证传动辊的电机负荷均不超过50％。b. Ensure that the motor load of the drive roller does not exceed 50% during tension adjustment.
为了达到上述目的，本发明采用以下技术方案实现：In order to achieve the above object, the present invention adopts the following technical solutions to realize:
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
1、本发明改进耐指纹药液的配方，配方中增加聚四氟乙烯及交联聚四氟乙烯等固体润滑剂，增加耐指纹膜中的润滑成分。提高钝化膜厚，增加加工时的有效润滑介质。进而提高了镀铝锌板润滑性，降低摩擦系数。1. The present invention improves the formula of the anti-fingerprint liquid medicine. Solid lubricants such as polytetrafluoroethylene and cross-linked polytetrafluoroethylene are added to the formula to increase the lubricating components in the anti-fingerprint film. Increase the passivation film thickness and increase the effective lubricating medium during processing. In turn, the lubricity of the galvanized sheet is improved and the friction coefficient is reduced.
2、本发明对钝化段之后的主传动辊系(张力辊)表面材质进行改进，在检查台转向辊上新增加带传动的压辊，并优化压辊介入的控制程序，优化钝化段之后的张力调整方式方法，形成固定的联动张力调整机制，避免张力差过大及分布不均匀造成的辊子转矩大形成打滑问题，保证机组稳定运行及避免带钢表面打滑划伤缺陷。2. The present invention improves the surface material of the main drive roller system (tension roller) after the passivation section, newly adds a pressure roller with transmission on the turning roller of the inspection table, and optimizes the control program of the pressure roller intervention, and optimizes the passivation section. The subsequent tension adjustment method forms a fixed linkage tension adjustment mechanism to avoid the problem of slippage caused by the large torque of the rollers caused by excessive tension difference and uneven distribution, to ensure the stable operation of the unit and to avoid slippage and scratches on the surface of the strip.
具体实施方式Detailed ways
本发明公开了一种高润滑性表面镀铝锌板的生产方法。本领域技术人员可以借鉴本文内容，适当改进工艺参数实现。特别需要指出的是，所有类似的替换和改动对本领域技术人员来说是显而易见的，它们都被视为包括在本发明。本发明的方法及应用已经通过较佳实施例进行了描述，相关人员明显能在不脱离本发明内容、精神和范围内对本文所述的方法和应用进行改动或适当变更与组合，来实现和应用本发明技术。The invention discloses a production method of a high lubricity surface galvanized sheet. Those skilled in the art can refer to the content of this document to appropriately improve the process parameters to achieve. It should be particularly pointed out that all similar substitutions and modifications are obvious to those skilled in the art, and they are deemed to be included in the present invention. The method and application of the present invention have been described through the preferred embodiments, and it is obvious that relevant persons can make changes or appropriate changes and combinations of the methods and applications described herein without departing from the content, spirit and scope of the present invention to achieve and Apply the technology of the present invention.
一种高润滑性表面镀铝锌板的生产方法，具体包括：A method for producing a galvanized sheet with a high lubricity surface, specifically comprising:
1)提高镀铝锌板润滑性，降低摩擦系数：1) Improve the lubricity of the galvanized sheet and reduce the friction coefficient:
A、改进耐指纹药液的配方，耐指纹药液包括重量份数的如下组分：A. Improve the formula of the anti-fingerprint liquid medicine. The anti-fingerprint liquid medicine includes the following components in parts by weight:
水溶性聚氨酯40份；40 parts of water-soluble polyurethane;
丙烯酸有机硅共聚物乳液45份；45 parts of acrylic silicone copolymer emulsion;
磷化物15份；15 parts of phosphide;
含环氧基的化合物15份；15 parts of compounds containing epoxy group;
硅烷偶联剂10份；10 parts of silane coupling agent;
纳米级SiO2水溶液15份；15 parts of nano-scale SiO2 aqueous solution;
聚四氟乙烯40份；40 parts of polytetrafluoroethylene;
交联聚四氟乙烯45份；45 parts of cross-linked polytetrafluoroethylene;
B、提高钝化膜厚，增加加工时的有效润滑介质:B. Increase the passivation film thickness and increase the effective lubricating medium during processing:
钝化膜厚在1.2um至1.6um之间，润滑介质为聚四氟乙烯及交联聚四氟乙烯The passivation film thickness is between 1.2um and 1.6um, and the lubricating medium is PTFE and cross-linked PTFE
2)避免辊面与带钢之间打滑、保证机组稳定运行及避免带钢表面打滑划伤：2) Avoid slippage between the roll surface and the strip, ensure the stable operation of the unit and avoid slippage and scratches on the strip surface:
A、对钝化段之后的主传动辊系(张力辊)表面材质进行改进，全部采用碳化钨涂层处理，并且要求辊面粗糙度Ra不低于4.5um。A. Improve the surface material of the main drive roller system (tension roller) after the passivation section, all of which are treated with tungsten carbide coating, and the surface roughness Ra of the roller is required to be no less than 4.5um.
B、在检查台转向辊上新增加带传动的压辊，并优化压辊介入的控制程序，在机组断卷减速之前5秒提前压下并跟随转动，直至机组重新穿带升速后恢复到稳定工艺速度时5秒后再抬起，增加带钢与辊面在升减速期间的摩擦力，保持带钢与辊面同速。B. Add a new belt-driven pressure roller to the steering roller of the inspection table, and optimize the control program of the pressure roller intervention, press down and follow the rotation 5 seconds before the unit breaks and decelerates, until the unit returns to the speed after re-threading the belt and increasing the speed. When the process speed is stable, lift it after 5 seconds, increase the friction between the strip and the roll surface during the lifting and deceleration, and keep the strip and the roll surface at the same speed.
C、优化钝化段之后的张力调整方式方法，形成固定的联动张力调整机制，避免张力差过大及分布不均匀造成的辊子转矩大形成打滑问题。C. Optimize the tension adjustment method after the passivation section to form a fixed linkage tension adjustment mechanism to avoid slippage caused by excessive tension difference and uneven distribution of roller torque.
具体调整机制：Specific adjustment mechanism:
a、保持钝化段与检查段、出口活套段的张力差值在合适的范围内(800daN之内)，避免张力差过大造成传动辊系转矩增大造成打滑a. Keep the tension difference between the passivation section, the inspection section and the exit looper section within a suitable range (within 800daN) to avoid slippage caused by the excessive tension difference caused by the increase in torque of the drive roller system
b、张力调整时务必关注传动S辊的电机负荷，保证电机负荷均不超过50％，避免电机负荷加大造成辊子转矩增加引起打滑。b. When adjusting the tension, be sure to pay attention to the motor load of the drive S roller, ensure that the motor load does not exceed 50%, and avoid slippage caused by the increase of the motor load caused by the increase of the torque of the roller.
本发明既能提高镀铝锌板的润滑性，又能保证镀铝锌机组生产高镀铝锌板时不产生钢板与辊系之间打滑造成的停机和镀铝锌板表面划伤问题，保证机组运行稳定和产品表面质量符合要求。The invention can not only improve the lubricity of the galvanized sheet, but also ensure that the problem of downtime and scratches on the surface of the galvanized sheet caused by slippage between the steel plate and the roller system does not occur when the galvanized sheet is produced by the galvanized unit. The unit runs stably and the product surface quality meets the requirements.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.
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