摘要
覆膜铁具有更好的节约资源能源和绿色环保安全的性能,可替代镀锡板等包装用材,是正在研发中的新型金属包装材料。针对国内覆膜铁研发需求,从覆膜工艺、膜铁结合机理、覆膜质量评价与控制、基材表面预处理及膜表面改性等方面概括梳理国内外关于覆膜铁覆膜理论与技术的研究进展,指出膜与基材接触区温度场是决定界面连接乃至覆膜质量和速度的关键,实现覆膜区温度场稳定、控制界面空洞缺陷与膜内再结晶缺陷、减小横向与纵向膜厚波动是提高覆膜质量和效率的关键;提出从膜铁结合强度、膜厚均匀性、膜结晶率、塑性成形加工性能等不同角度对覆膜质量进行全面评价;建议精细研究接触区热行为和聚合物膜熔融及凝固过程,从细观尺度研究熔融膜在基材粗糙表面受辊压作用流动、铺展、湿润、填充行为,从微观尺度研究膜铁化学反应键合与聚合物再结晶;提出借鉴板形和厚度的控制理论与技术及其研究方法,包括借鉴轧机颤振问题研究考虑覆膜辊系动力学特性,研究横向和纵向膜厚控制方法及技术。相关分析及建议有助于覆膜理论与技术的创新研究。
Polymer-coated steel is a new type of metal packaging material under development, which has better performance in saving resources, energy, and environmental protection. It can replace packaging materials such as tinplate. In response to the research and development needs of domestic polymer-coated steel products, the research progress of the theory and technology of polymer-coated steel is analyzed and summarized. The trend of theory and technology development is studied from the laminating process, the combined mechanism of film and steel, the evaluation of laminating quality, the quality control of the film and the strip steel, the surface pretreatment and the surface modification of polymer film. It suggests that the temperature field of the contact zone between the film and steel is the key factor to determine the interface hydrogen bonding connection and even the film quality and film laminating speed. The temperature field stability of the film area and the controlling of interface cavity defect are studied. Intra-membrane recrystallization defects, reducing lateral and longitudinal film thickness fluctuations are the key to improving film quality and efficiency. We pointed out that the film quality should evaluated in different field such as bonding strength, film thickness uniformity, crystallization rate and plastic forming processing performance. The thermal behavior in the contact zone and the melting and solidification process of the polymer film should be studied. The flow, spreading, wetting and filling behaviors of the molten film under the action of roller on the rough surface of the substrate should be studied from the microscopic scale. The control theory and technology of the shape and thickness of the plate and the research methods be introduced, including the study of the dynamic characteristics of the coated roller system, and the lateral and longitudinal film thickness control methods and techniques are studied. In addition, several research proposals for improving film quality and efficiency are proposed, which may be helpful to the innovative research of current laminating theory and technology.
作者
张清东
刘吉阳
张勃洋
张立元
ZHANG Qingdong;LIU Jiyang;ZHANG Boyang;ZHANG Liyuan(School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083)
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2019年第8期30-45,共16页
Journal of Mechanical Engineering
基金
国家自然科学基金(U1760106)
中央高校基本科研业务费专项资金(FRF-TP-17-010A1)资助项目
关键词
覆膜铁
覆膜质量
熔融覆膜
金属包装
polymer-coated steel
laminating quality
thermal melting laminating
metal packaging
作者简介
张清东,男,1965年出生,博士,教授,博士研究生导师。主要研究方向为板带轧制与板形厚度表面控制,塑性成形装备与工艺界面力学行为,薄带屈曲与皱曲。E-mail:zhang_qd@me.ustb.edu.cn;通讯作者:刘吉阳(通信作者),男,1992年出生,博士研究生。主要研究方向为覆膜铁覆膜机理与关键技术。E-mail:b20170270@xs.ustb.edu.cn.
