Enhanced pyrometry for continuous galvanizing of advanced high strength steel

先进高强度钢连续镀锌的强化高温测量

• 批准号: 521291-2017
• 负责人: Daun, Kyle
• 金额: $ 6.48万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=697624
• 关键词: Enhanced; pyrometry; continuous; galvanizing; advanced

Automotive manufacturers increasingly rely on galvanized advanced high strength steels (AHSS) for lightweighting. Unfortunately, Canadian steel producers report unacceptably high AHSS rejection rates due to substandard strength and zinc layer adhesion. Much of the issue can be traced back to errors in the pyrometrically-inferred temperatures used to control the furnaces. These errors originate from the evolving surface state of the steel strip, in terms of roughness and oxide formation, which changes the spectral emissivity. The proposed research partnership between Prof Kyle Daun, a thermal radiation expert at the University of Waterloo, and Prof Myriam Brochu, a metallurgist at Polytechnique, will address this issue by: (i) elucidating how the AHSS surface state evolves during processing, and how this affects the spectral emissivity; and (ii) determining how temperature excursions affect strength and zinc adhesion. This information will be synthesized into an algorithm that provides robust steel strip temperature estimates using multiwavelength pyrometers. This research is supported by the Galvanized Autobody Partnership, convened by the International Zinc Association (IZA), and will be carried out in close collaboration with Stelco, a major producer of galvanized AHSS, Williamson, Inc. who supplies the pyrometers used by Stelco, SRB Controls, Inc., Williamson's Ontario distributor, and Teck Metals, Inc., Canada's largest producer of zinc. Stelco will use this research to enhance profitability of AHSS steel strip production, which will also benefit Canada's iron and zinc mining industry, who provide the feedstock needed to make galvanized AHSS steel. These savings will be passed down to Canadian automotive parts suppliers and OEMs, thereby benefiting the entire automotive supply chain and Canada's economy as a whole.

汽车制造商越来越依赖镀锌高级高强度钢（AHSS）来实现轻量化。不幸的是，加拿大钢铁生产商报告说，由于强度和锌层附着力不合格，AHSS的废品率高得令人无法接受。大部分问题可以追溯到用于控制熔炉的高温推断温度的错误。这些误差源于钢带表面状态的变化，即粗糙度和氧化物形成，从而改变光谱发射率。 滑铁卢大学的热辐射专家凯尔道恩教授和理工学院的分析师Myriam Brochu教授之间拟议的研究伙伴关系将通过以下方式解决这个问题：（i）阐明AHSS表面状态在加工过程中如何演变，以及这如何影响光谱发射率;以及（ii）确定温度偏移如何影响强度和锌附着力。这些信息将被合成到一个算法，提供强大的钢带温度估计使用多波长高温计。这项研究得到了国际锌协会（IZA）召集的镀锌车身合作伙伴关系的支持，并将与镀锌AHSS的主要生产商Stelco，威廉姆森，Inc.密切合作。Stelco，SRB Controls，Inc.使用的高温计的供应商，威廉姆森的安大略分销商，和泰克金属公司，加拿大最大的锌生产商。 Stelco将利用这项研究来提高AHSS钢带生产的盈利能力，这也将有利于加拿大的铁和锌矿业，他们提供了制造镀锌AHSS钢所需的原料。这些节省下来的成本将传递给加拿大汽车零部件供应商和原始设备制造商，从而使整个汽车供应链和整个加拿大经济受益。