Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of aluminum oxide ceramic granulation powder
The invention relates to the technical field of ceramic materials, and provides a preparation method of aluminum oxide ceramic granulation powder. The preparation method comprises the following steps: mixing alpha-alumina raw powder, a dispersing agent, a grinding aid and water, and carrying out first ball milling to obtain first ball-milled slurry; mixing the first ball-milled slurry with a granulation binder aqueous solution, and carrying out second ball milling to obtain second ball-milled slurry; and mixing the second ball-milled slurry with a lubricant and an antifoaming agent, and carrying out spray granulation to obtain the aluminum oxide ceramic granulation powder. The high-purity alpha-alumina powder is selected as the raw material, the granularity of the alpha-alumina powder original crystal after ball milling dispersion is small, the distribution is narrow, the sintering activity can be improved, and the optimized granulation formula and process are adopted, so that the granules of the granulation powder are solid, good in sphericity degree and good in fluidity. The prepared aluminum oxide ceramic granulation powder is good in sintering performance and high in ceramic forming density, and can meet the requirements of advanced ceramics, especially functional ceramics and structural ceramics.
本发明涉及陶瓷材料技术领域，提供了一种氧化铝陶瓷造粒粉的制备方法。本发明将α‑氧化铝原粉、分散剂、助磨剂和水混合进行第一球磨，得到第一球磨浆料；将第一球磨浆料和造粒粘结剂水溶液混合进行第二球磨，得到第二球磨浆料；将第二球磨浆料和润滑剂、消泡剂混合后进行喷雾造粒，得到氧化铝陶瓷造粒粉。本发明选用高纯α氧化铝粉做原料，球磨分散后α‑氧化铝粉原晶的粒度小且分布窄，能够提高烧结活性，并且本发明采用优化的造粒配方和工艺，使得造粒粉颗粒中实，球形度好，流动性好。本发明制备的氧化铝陶瓷造粒粉烧结性能好，成瓷密度高，能够满足先进陶瓷特别是功能陶瓷和结构陶瓷的要求。
Preparation method of aluminum oxide ceramic granulation powder
The invention relates to the technical field of ceramic materials, and provides a preparation method of aluminum oxide ceramic granulation powder. The preparation method comprises the following steps: mixing alpha-alumina raw powder, a dispersing agent, a grinding aid and water, and carrying out first ball milling to obtain first ball-milled slurry; mixing the first ball-milled slurry with a granulation binder aqueous solution, and carrying out second ball milling to obtain second ball-milled slurry; and mixing the second ball-milled slurry with a lubricant and an antifoaming agent, and carrying out spray granulation to obtain the aluminum oxide ceramic granulation powder. The high-purity alpha-alumina powder is selected as the raw material, the granularity of the alpha-alumina powder original crystal after ball milling dispersion is small, the distribution is narrow, the sintering activity can be improved, and the optimized granulation formula and process are adopted, so that the granules of the granulation powder are solid, good in sphericity degree and good in fluidity. The prepared aluminum oxide ceramic granulation powder is good in sintering performance and high in ceramic forming density, and can meet the requirements of advanced ceramics, especially functional ceramics and structural ceramics.
本发明涉及陶瓷材料技术领域，提供了一种氧化铝陶瓷造粒粉的制备方法。本发明将α‑氧化铝原粉、分散剂、助磨剂和水混合进行第一球磨，得到第一球磨浆料；将第一球磨浆料和造粒粘结剂水溶液混合进行第二球磨，得到第二球磨浆料；将第二球磨浆料和润滑剂、消泡剂混合后进行喷雾造粒，得到氧化铝陶瓷造粒粉。本发明选用高纯α氧化铝粉做原料，球磨分散后α‑氧化铝粉原晶的粒度小且分布窄，能够提高烧结活性，并且本发明采用优化的造粒配方和工艺，使得造粒粉颗粒中实，球形度好，流动性好。本发明制备的氧化铝陶瓷造粒粉烧结性能好，成瓷密度高，能够满足先进陶瓷特别是功能陶瓷和结构陶瓷的要求。
Preparation method of aluminum oxide ceramic granulation powder
一种氧化铝陶瓷造粒粉的制备方法
CHEN DONGSHENG (Autor:in) / WU DINGMING (Autor:in) / WANG SONG (Autor:in) / WANG LEI (Autor:in)
15.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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