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: $ 7万
• 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: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=692584
• 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的高强度钢（AHSS）进行轻巧。不幸的是，加拿大钢铁生产商报告说，由于不合格的强度和锌层粘附而导致的高AHS拒绝率令人难以置信。大部分问题可以追溯到用于控制炉子的金属尺度上提取的温度中的错误。这些误差源于钢带的发展表面状态，就粗糙度和氧化物形成而言，这会改变光谱的发射率。滑铁卢大学的热辐射专家凯尔·达恩（Kyle Daun）教授与理工学院的冶金学家米里亚姆·布鲁楚（Myrim Brochu）教授之间的拟议研究合作关系将通过：（i）阐明AHSS表面状态在处理过程中的发展方式，以及这如何影响光谱发射率； （ii）确定温度偏移如何影响强度和锌粘附。该信息将合成为一种算法，该算法使用多波强度仪提供稳健的钢条温度估计。 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将利用这项研究来提高AHSS钢铁脱带生产的盈利能力，这也将使加拿大的铁和锌矿业行业受益，后者提供制造镀锌AHSS钢所需的原料。这些节省将传递给加拿大汽车零件供应商和OEM，从而使整个汽车供应链和整个加拿大的经济受益。