Analysis of Two-phase flows for Spraying Processes

喷涂过程的两相流分析

• 批准号: RGPIN-2015-06092
• 负责人: Dolatabadi, Ali
• 金额: $ 2.48万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638927
• 关键词: Analysis; Two; phase; flows; Spraying

Thermal sprays are extensively used in the aerospace, automotive, power generation, and biomedical industries to provide protective coatings on landing gear, engine, turbine, and implant components that are exposed to heat, corrosion, and wear. In a conventional thermal spray system such as plasma, high velocity oxygen fuel (HVOF), or cold spray, coating particles with a size of tens of microns are fed into the spray nozzle where they are heated and accelerated to high velocities. Consequently, thermally sprayed coatings are formed by the impact and solidification of a stream of molten or semi-molten particles on a surface. We have designed and built a shroud attachment which considerably expands the capabilities of the HVOF process in the areas of deposition efficiency and flexibility to allow coating with ceramic powders (U.S. Patent No. 6,845,929).

热喷雾剂在航空航天，汽车，发电和生物医学行业中广泛使用，可在起落架，发动机，涡轮机和植入物组件上提供防护涂料，这些涂层暴露于热，腐蚀和磨损。在传统的热喷雾系统（例如等离子体）中，高速氧燃料（HVOF）或冷喷雾剂，涂有数十万微米的涂层颗粒被送入喷嘴中，并加热并加速到高速速度。因此，通过对表面上的熔融或半摩尔质颗粒流的影响和凝固形成热喷涂的涂层。我们设计并建立了一个裹尸布的附件，可大大扩展HVOF过程在沉积效率和灵活性领域的功能，以允许使用陶瓷粉末涂层（美国6,845,929号专利）。