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首页> 外文期刊>High Temperature Material Processes >MODELING OF THE TIME-DEPENDENT PHENOMENA IN A DC PLASMA SPRAY PROCESS
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MODELING OF THE TIME-DEPENDENT PHENOMENA IN A DC PLASMA SPRAY PROCESS

机译:直流等离子体喷涂过程中与时间有关的现象的建模

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This study addresses the 3-D and time-dependent modeling of the plasma spray process. The model includes the conversion from electrical to thermal energy in the plasma-forming gas, multiple particle injection and buildup of the coating on a fixed substrate. It uses two sequential sub-systems. The first deals with the fluid and particulate phases and makes it possible to predict the time-distributions of particle velocity, temperature, molten state and size prior to impact on the substrate as well as the location of particles in the spray jet. The second predicts the shape and thickness of the coating from the calculated particle parameters at impact.
机译:这项研究解决了等离子喷涂过程的3-D和时间依赖模型。该模型包括在等离子体形成气体中从电能到热能的转换,多次粒子注入以及涂层在固定基材上的堆积。它使用两个顺序子系统。首先处理流体相和颗粒相,并可以在撞击基材之前预测颗粒速度,温度,熔融状态和尺寸的时间分布以及喷射流中颗粒的位置。第二种方法是根据碰撞时计算出的颗粒参数来预测涂层的形状和厚度。

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