一、棕刚玉黄盖砂的制备1、制粒其制粒过程与棕刚玉基本相同,仅增加一道整形工序,以满足树脂重负荷砂轮对磨粒强度的要求。2、整形对影响磨料堆积密度的整形时间和投料量进行了试验研究,结果表明磨料的堆积密度和球磨韧性随整形时间的增加和投料量的减少而提高。整形后堆积密度可提高0.1～0.2克/厘 First, the preparation of corundum yellow cover sand 1, the granulation process granulation and corundum is basically the same, only to add a plastic process to meet the resin heavy-duty wheel on the abrasive strength requirements. The results of the experiment show that the bulk density and the ball-milling toughness of abrasive increase with the increase of shaping time and the decrease of feeding amount. After plastic packing density can be increased 0.1 ~ 0.2 g /%