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发明公开
CN106518117A 一种超硬陶瓷磨料的制备方法 无效 - 撤回

一种超硬陶瓷磨料的制备方法
摘要：
本发明公开了一种超硬陶瓷磨料的制备方法，属于陶瓷磨料制备技术领域。本发明将膨润土粉碎过筛，与去离子水混合球磨，干燥后与硫酸溶液等搅拌，离心得精致酸浸液，加入尿素等制得混合液，抽滤得滤饼，经洗涤干燥、煅烧制得氧化铝晶须，将拟薄水铝石、柠檬酸三铵溶液等混合，再加入氧化铝晶须，经喷雾造粒、煅烧制得超硬陶瓷磨料的方法。本发明制备步骤简单，通过氧化铝晶须的桥接效应，将体系中的各种组分混合均匀，无化学偏析现象发生，所得陶瓷磨料成分均匀，性能稳定性好，无孔洞、裂纹产生。
摘要（英）：

The invention discloses a superhard ceramic abrasive material preparation method and belongs to the technical field of ceramic abrasive material preparation. The preparation method comprises the steps of smashing and sieving bentonite; mixing and ball milling the bentonite with deionized water; drying the bentonite and stirring the bentonite with sulfuric acid solution; centrifuging to obtain refined pickle liquor; adding urea to obtain mixed liquor; performing suction filtration to obtain filter cake; washing, drying and roasting to obtain aluminum oxide crystal whisker; mixing pseudo-boehmite with ammonium citrate solution, then adding the aluminum oxide crystal whisker and performing spray granulation and roasting to obtain the superhard ceramic abrasive material. The preparation method is simple in preparation step, all the ingredients in the system can be evenly mixed through a bridge connection effect of the aluminum oxide crystal whisker, the chemical segregation phenomenon is avoided, and the obtained ceramic abrasive material is even in components, good in performance stability and free of holes and cracks.

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