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在激光表面涂敷技术中,一种方法是用气体运载金属和陶瓷粉末从激光输出口喷出,溶化后在基底表面形成覆盖层.喷出的粉状微粒在基底表面上的分布情况对涂敷的质量有很大的影响.本文从理论上研究了被运载的粉状材料从圆形喷口喷出后的运动情况,得到了在管口下方的基底材料表面上的分布形式,与实验的结果基本符合.这对提高激光表面涂敷的质量,从实验上改进喷粉微粒在基底表面的分布形式提供了参考依据.
In the laser surface coating technique, one method is to use a gas-carrying metal and ceramic powder to be ejected from a laser output port and to form a coating on the surface of the substrate after being melted The distribution of the ejected powder particles on the surface of the substrate Deposited quality has a great influence.This paper theoretically studied the movement of the powdery material carried out after being discharged from a circular orifice and obtained the distribution pattern on the surface of the underlying material under the orifice, The results are basically in line with.This is to improve the quality of the laser surface coating, from the experimental to improve the distribution of the surface morphology of the powder particles provide a reference.