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采用田口方法对HMA(热熔胶)进行配方设计,得到满足沟槽滤棒圆周稳定性控制要求的HMA。首先设置控制因子与水平表,由极差分析确定制备HMA的较优设计方案;其次以信噪比和灵敏度作为稳健性指标,采用望目特性分析法得到制备HMA的最佳设计方案;最后对制备HMA的最佳设计方案进行验证,并确认其可靠性。研究结果表明:当HMA中w(费托蜡)=15%、w(氢化石油树脂)=25%、w(石蜡)=5%和w[EVA(乙烯-醋酸乙烯酯共聚物)]=35%时,所得沟槽滤棒的圆周过程能力指数超过4σ水平,说明其过程控制能力较好、状态稳定。
The Taguchi method was used to formulate the HMA (hot melt adhesive) to obtain the HMA satisfying the requirements of controlling the circumferential stability of the trench filter rod. Firstly, the control factor and the level table are set up, and the optimal design scheme of HMA is determined by range analysis. Secondly, the signal to noise ratio and sensitivity are taken as the robustness index, and the best design scheme of HMA is obtained by the look- The best design for HMA was verified and its reliability verified. The results show that when w (Fischer-Tropsch wax) = 15%, w (hydrogenated petroleum resin) = 25%, w (paraffin) = 5% and w [EVA (ethylene vinyl acetate copolymer)] = 35 %, The circumferential process capability index of the resulting trench filter rods exceeds 4σ, indicating that the process control ability is good and the state is stable.