激光打标参数对黑色无卤阻燃尼龙打标效果的影响

通过激光打标机在不同参数设计下对黑色次磷酸盐阻燃尼龙66(PA66)与MCA阻燃PA6材料进行激光打标,运用工作矩阵判断激光打标效果,通过可量化的评价手段,研究了不同激光打标参数如不同电流强度、步长和频率对两种材料激光打标效果的影响,最终选出对应材料的最佳打标工艺参数。结果表明,次磷酸盐阻燃PA66材料在电流强度为16A、频率为1~2.5kHz、步长为0.001~0.0175mm范围内可以打标出满意的效果;MCA阻燃PA6材料在电流强度为16A、频率为1~3kHz、步长为0.006~0.024mm范围内可以打标出满意的效果。

Impacts of Laser Marking Parameters on Black Halogen-free Flame-retardant Nylon Marking Effects

Through laser marking of black hypophosphite flame-retardant nylon 66 (PA66) and melamine cyanurate (MCA) flame-retardant PA6 materials by laser marking machine under different parameter design,the effects of different laser marking parameters such as different current intensity,step-size or frequency on the laser marking effect were studied. The best laser marking parameters of the corresponding materials were selected according to the laser marking effects which judged by laser making matrix through quantifiable evaluation method. The results show that the hypophosphite flame-retardant PA66 can get satisfactory laser marking effect at a current intensity of 16 A,a frequency of 1–2.5 kHz and a step size of 0.001 – 0.017 5 mm. MCA flameretardant PA6 can get satisfactory laser marking effect at a current intensity of 16 A,a frequency of 1–3 kHz and a step size of 0.006 –0.024 mm.