为提高热固化树脂结合剂固结磨粒线锯的制作效率,在环氧-酚醛体系的树脂结合剂固结磨粒线锯涂层材料中加入咪唑、液体聚硫橡胶和偶联剂,通过正交试验对线锯涂层材料组分进行研究。以酚醛树脂含量、聚硫橡胶含量、偶联剂含量以及树脂中金刚石浓度作为正交试验因素,以最大有效锯切面积和涂层材料的凝胶时间为评价指标。结果显示：各因素对评价指标的影响由大到小依次为咪唑含量、酚醛树脂含量、金刚石浓度、聚硫橡胶含量和偶联剂含量,其最佳组分分别为酚醛树脂质量分数40.0%、聚硫橡胶质量分数6.4%、偶联剂质量分数3.0%、咪唑质量分数1.2%,其余为金刚石,金刚石浓度450 mg/cm3。用优化配方进行验证,最大有效锯切面积为185.32 mm2,凝胶时间130 s。%In order to improve the production efficiency of epoxy-phenol bonded abrasive wire saw imidazole liquid polysulfide rubber and coupling agent were added into the coating material The influence of components on wire saw performance was investigated with orthogonal experiment The contents of phenol resin liquid polysulfide rubber and coupling agent as well as the diamond concentration in the resin were chosen as the orthogonal experimental factors while the evaluation indexes of the orthogonal experimental were the maximum cutting area of the wire saw and the gelatin time of the coating material Results show that imidazole content has the most significant influence on the indexes followed by phenol resin content diamond concentration liquid polysulfide rubber and coupling agent the best values of which are phenol resin 40 0 wt% liquid polysulfide rubber 6 4 wt%coupling agent 3 0 wt% imidazole content 1 2 wt% and diamond concentration 450 mg cm3 49 4 wt% respectively When verified with the optimized formula the maximum cutting area reaches 185 32 mm2 and the gelatin time 130 s.
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