Electroslag re-melting (ESR) of H13 steel: recycling and environmental process research

H13钢的电渣重熔（ESR）：回收与环保工艺研究

• 批准号: 530693-2018
• 负责人: Chattopadhyay, Kinnor
• 金额: $ 1.82万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=647271
• 关键词: Electroslag; re; melting; ESR; H13

The Electroslag Remelting process (ESR) is a consumable electrode remelting process for producing high**value steel ingots used in aerospace, energy, mining and tooling applications. Passage of an Alternating**Current (AC) from the electrode to the crucible creates resistive heating in the slag that melts the electrode to**build up the ingot in the crucible. RS +CO ltd is setting up a value added steel mill in Port Colborne, Ontario,**and has identified the ESR process route to produce H13 Ingots after remelting used bars. The idea is to**produce as good or better quality than forged bars. So RS+CO can sell in as cast condition after soft annealing**and rough machining to required round sizes for extrusion die production. RS+CO to intends to recycle**used/scrap mandrel bars of pure H13 grade from seamless tube mills around the world, mainly from**USA/Canada and Europe. The tube mills usually reject mandrel bars due to diameter, spalls, cracks, etc. and**the used bars are solid and of consistent H13 grade pre forged steel. Therefore, they are the best raw material**for using as a direct electrode for re-melting in an ESR furnace. North American tube mills generate about**2000-3000 tons of used H13 mandrels every year and an ESR facility locally in Ontario to only re-melt the H13**used bars as a direct electrode to produce ESR purified H13 ingot is an excellent example of recycling and**value addition in Canada. This project will focus on a technical study of the ESR process to produce high**quality clean H13 steels and will investigate the issues related to slag design, slag recycling and emissions**reductions using tools like physical modeling and mathematical simulation. This project will ensure it**REUSES old H13 mandrell bars, RECYCLE the complex ESR basic slag to minimize waste/slag dumping, and**finally REDUCE emissions by using best available technologies and outperform current industrial standards.

电渣重熔工艺（ESR）是一种自耗电极重熔工艺，用于生产航空航天、能源、采矿和工具应用中使用的高 ** 值钢锭。从电极到坩埚的交流电流（AC）在熔渣中产生电阻加热，熔渣熔化电极，从而在坩埚中形成铸锭。RS +CO有限公司正在安大略的科尔伯恩港建立一家增值钢厂，** 并已确定电渣重熔工艺路线，在重熔旧棒材后生产H13铸锭。这个想法是 ** 生产一样好或更好的质量比锻造酒吧。因此RS+CO可以在软退火 ** 和粗加工到挤压模具生产所需的圆形尺寸后以铸态出售。RS+CO打算回收来自世界各地无缝管米尔斯厂的纯H13级废旧芯棒，主要来自 ** 美国/加拿大和欧洲。管米尔斯通常拒绝芯棒由于直径，剥落，裂纹等，** 使用的酒吧是坚实的，一致的H13级预锻钢。因此，它们是在电渣重熔炉中用作直接电极的最佳原料 **。北美的管米尔斯厂每年产生约 **2000-3000吨的H13用过的芯轴，而位于安大略的电渣重熔设施仅将H13** 用过的棒作为直接电极重新熔化，以生产电渣重熔纯化的H13锭，这是加拿大回收和 ** 增值的一个很好的例子。该项目将侧重于电渣重熔工艺的技术研究，以生产高质量的清洁H13钢，并将使用物理建模和数学模拟等工具调查与炉渣设计，炉渣回收和减排相关的问题。该项目将确保它 ** 重新使用旧的H13芯棒，回收复杂的电渣重熔碱性渣，以尽量减少废物/渣倾倒，并 ** 最终通过使用最佳技术减少排放，并优于当前的工业标准。