石英砂研磨棒是目前光整加工新型工具之一。它具有造价低,研磨精度高,有效地提高表面光洁度,节省材料,重复使用等特点,因此,适于一般工厂采用。自从第一期发表“石英砂研棒”一文之后,不少同志来信来访,在这里,对同志们的大力支持表示感谢,并借此回答研棒制造的有关问题。 Quartz sand grinding rod is one of the new tools for finishing. It has low cost, high grinding accuracy, effectively improve the surface finish, save material, reuse, etc., therefore, suitable for general factory use. Since the publication of the article entitled “Quartz Sand Research Stick” in the first issue, many comrades have come to visit us and here to express my gratitude to the comrades for their support and to answer relevant questions concerning the manufacture of sticks.