Orthogonal experiment on coating material of resin bonded abrasive wire saw

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.Resultsshow 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.