On-Line Sensor for Powdered Metal Processing

用于粉末金属加工的在线传感器

• 批准号: 8861297
• 负责人: Donald Holve
• 金额: $ 5万
• 依托单位: INSITEC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-01-01 至 1989-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8861297&HistoricalAwards=false
• 关键词: Line; Sensor; Powdered; Metal; Processing

Non-intrusive, on-line sensors of molten metal atomization have the potential to improve powder yields through improved process control. The prediction and control of powdered metal production processes are largely based on operator experience. The complex relations between the operating variables controlling powder yield, powder quality and finished product quality are not yet well understood. Powder quality refers to powder size, powder size distribution, and the powder microstructure. Rapid solidification will be increased by the controlled production of smaller powder sizes; improved powder microstructure and chemical homogeneity are directly related to solidification rates. Current powdered metal production monitoring practices are limited to visual observation of sprays by an operator during the production process and a quantitative sieve analysis after production is completed. Presently there is no on-line sensor to quantitatively assess powder quality during the course of the batch production process. Insitec has extensive experience in the design and development of non-intrusive, in situ instrumentation for particle size, concentration, and velocity measurements in fossil energy combustors.

熔融金属雾化的非侵入式在线传感器， 通过改进工艺提高粉末产量潜力 控制 金属粉末产量的预测与控制 这些过程主要基于操作者的经验。 复杂 控制粉末的操作变量之间的关系 产量、粉末质量和成品质量尚未达到 很好理解。 粉体质量是指粉体的粒度、粉质 粒度分布和粉末微观结构。 快速 固化将通过控制生产 更小的粉末尺寸;改进的粉末微观结构和化学性质 均匀性与凝固速率直接相关。 当前粉末金属生产监控实践是 仅限于操作员在操作过程中对喷雾的目视观察。 生产过程和定量筛分分析后， 生产已经完成。 目前还没有在线传感器， 定量评估粉末质量的过程中， 批量生产工艺。 Insitec在以下方面拥有丰富的经验： 设计和开发非侵入式、原位 测量颗粒大小、浓度和速度的仪器 化石能源燃烧器的测量。