激光再制造粉末输送流量检测系统设计

Design of measurement system of powder flow in laser remanufacturing technology

为了检测粉末的流量,设计了一种激光再制造粉末输送流量检测系统,采用电容传感器来检测流量的变化并以2Cr13和 H13金属粉末作为输送介质进行了测试试验。结果表明,输送介质为 H13粉末的情况下获得较好的检测效果,在粉末的浓度变化大于10^(-1)/min 时具有较好的分辨率。该系统可以用于送粉系统粉末流的检测。

In order to measure the powder flow, a measurement system of powder flow in laser remanufacturing technology was designed. The variance of the powder flow was detected with a capacitance sensor and with 2Crl3 and H13 metal powder as transmission medium, experiments were carried out. The results show that a smaller solution can be obtained if the change of powder density is larger than 10^-1g/rain with Hl3 metal powder as medium. The system can be used to measure powder flow.