Development of an Online Measurement of Cleanliness on the Zodiac Galvanising Line

Zodiac 镀锌线上清洁度在线测量的开发

• 批准号: 105999
• 金额: $ 7.05万
• 依托单位: TATA STEEL UK LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=105999
• 关键词: Development; Online; Measurement; Cleanliness; Zodiac

The project scope is to develop a test method for measuring contamination films on the steel surface at the Zodiac galvanising line in Tata, which supplies galvanised thin strips to Automotive Customers for pressing into body panels. The Zodiac galvanising line is the final process in a production process that takes several weeks from liquid steel to a coil that is ~0.7mm thick; so the need to achieve a good zinc coating for the required corrosion performance is critical.The strip comes into Zodiac and is welded to the previous coil and then cleaned, annealed and then coated with Zinc before being despatched to the customer. Before the strip is coated in Zinc the surface of the steel is cleaned to remove all contamination; if any minute levels of contamination is left on the steel then the subsequent Zinc coating will not adhere to the steel surface.To achieve this the cleaning section is complex and involves chemical application and agitation, surface brushing, sprays and drying operations; to optimise the removal of any contamination left on the strip from the previous rolling processes.It is important to the manufacturing line to be able to measure the surface cleanliness in real time i.e. on the processing line itself. This will enable responsive problem solving to correct any discrepancies with surface cleanliness.This project is to develop an effective online measurement device with the capability to reliably measure the cleanliness level of the steel surface ahead of coating operations.The environment poses a few challenges;The online device would need to continuously measure throughout the length of a steel 20T coilIdentify levels of organic and metallic particlesQuantify the level of residueTest over a reasonable test areaAbility to accommodate the moving strip surfaceDetect very low levels of contamination ie thin layer or isolated particles.

该项目的范围是开发一种测试方法，用于测量塔塔Zodiac镀锌线钢表面的污染膜，该镀锌线向汽车客户提供镀锌薄带，用于压入车身面板。Zodiac镀锌线是生产过程中的最后一道工序，从钢水到厚度约为0.7mm的钢卷需要数周时间，因此获得良好的镀锌层以满足所需的腐蚀性能至关重要。带钢进入Zodiac，焊接到前一个钢卷上，然后清洗，退火，然后镀锌，然后发送给客户。在带钢镀锌之前，钢表面要进行清洁以去除所有污染物;如果钢上留下任何微量污染物，那么随后的锌涂层将不会粘附在钢表面。为了实现这一目标，清洁部分很复杂，涉及化学品应用和搅拌、表面刷涂、喷雾和干燥操作;优化去除先前轧制过程中残留在带材上的任何污染物。对于生产线来说，能够在生产线上真实的实时测量表面清洁度是非常重要的。这将有助于快速解决问题，以纠正任何与表面清洁度的差异。该项目旨在开发一种有效的在线测量设备，能够在涂层操作之前可靠地测量钢表面的清洁度水平。在线设备需要在20 T钢卷的整个长度上连续测量，识别有机和金属颗粒的水平，残留物水平在合理的测试区域内进行测试能够适应移动的测试条表面检测非常低水平的污染物，即薄层或孤立的颗粒。