Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of alumina milling balls
The invention discloses a preparation method of an alumina milling balll. The preparation method comprises the following steps: 1) sieving aluminum oxide powder with the purity of more than or equal to 99.995%, the particle size D50 value of 0.6-1.0 [mu]m and the specific surface area of less than or equal to 8 m<2>/g to obtain sieved aluminum oxide powder; 2) collecting the sieved alumina powder,adding pure water accounting for 5-20% of the weight of the sieved alumina powder, and preparing ball seeds in a ball forming machine, when the particle size of the ball seeds reaches 0.1-0.3 mm, adding sieved aluminum oxide powder on the ball seeds in the ball forming machine to start to grow balls, when the ball diameter is increased to 0.5-0.6 mm, adjusting the rolling moving track of the ball, and adding sieved alumina powder to continuously grow the ball, when the ball diameter is increased to 0.7-0.8 mm, adjusting the rolling moving track of the ball, and adding sieved aluminum oxide powder to grow the ball continuosuly, when the ball diameter is increased to 0.8-0.9 mm and the apparent density of the alumina ball after ball repairing and pressing reaches 1.5 g/cm<3> or above, drying and sintering the balls at 1300-1400 DEG C for 15-25 hours to obtain the alumina milling ball. The alumina milling ball has the characteristics of high purity, low abrasion, high strength and smoothand round surface.
本发明公开了一种氧化铝陶瓷研磨球的制备方法，所述制备方法包括如下步骤：1)纯度≥99.995％，粒径D50值为0.6‑1.0μm，比表面积≤8m/g的氧化铝粉过筛后得到筛后氧化铝粉；2)取筛后氧化铝粉，加入筛后氧化铝粉重量5％‑20％的纯水，在团球机内制备球种子；球种子粒径达到0.1‑0.3mm时，向团球机内的球种子上面加筛后氧化铝粉开始长球；当球径增长到0.5‑0.6mm时，调整球滚动运行轨迹，再加筛后氧化铝粉继续长球；当球径增长到0.7‑0.8mm时，再调整球滚动运行轨迹，再加筛后氧化铝粉继续长球；当球径增长到0.8‑0.9mm时，修球压球后氧化铝球的松装密度达到1.5g/cm以上；烘干进行15‑25小时的1300‑1400℃烧结之后得到氧化铝陶瓷研磨球。本发明的氧化铝陶瓷研磨球具有高纯度、低磨耗、高强度、表面光滑圆润的性质。
Preparation method of alumina milling balls
The invention discloses a preparation method of an alumina milling balll. The preparation method comprises the following steps: 1) sieving aluminum oxide powder with the purity of more than or equal to 99.995%, the particle size D50 value of 0.6-1.0 [mu]m and the specific surface area of less than or equal to 8 m<2>/g to obtain sieved aluminum oxide powder; 2) collecting the sieved alumina powder,adding pure water accounting for 5-20% of the weight of the sieved alumina powder, and preparing ball seeds in a ball forming machine, when the particle size of the ball seeds reaches 0.1-0.3 mm, adding sieved aluminum oxide powder on the ball seeds in the ball forming machine to start to grow balls, when the ball diameter is increased to 0.5-0.6 mm, adjusting the rolling moving track of the ball, and adding sieved alumina powder to continuously grow the ball, when the ball diameter is increased to 0.7-0.8 mm, adjusting the rolling moving track of the ball, and adding sieved aluminum oxide powder to grow the ball continuosuly, when the ball diameter is increased to 0.8-0.9 mm and the apparent density of the alumina ball after ball repairing and pressing reaches 1.5 g/cm<3> or above, drying and sintering the balls at 1300-1400 DEG C for 15-25 hours to obtain the alumina milling ball. The alumina milling ball has the characteristics of high purity, low abrasion, high strength and smoothand round surface.
本发明公开了一种氧化铝陶瓷研磨球的制备方法，所述制备方法包括如下步骤：1)纯度≥99.995％，粒径D50值为0.6‑1.0μm，比表面积≤8m/g的氧化铝粉过筛后得到筛后氧化铝粉；2)取筛后氧化铝粉，加入筛后氧化铝粉重量5％‑20％的纯水，在团球机内制备球种子；球种子粒径达到0.1‑0.3mm时，向团球机内的球种子上面加筛后氧化铝粉开始长球；当球径增长到0.5‑0.6mm时，调整球滚动运行轨迹，再加筛后氧化铝粉继续长球；当球径增长到0.7‑0.8mm时，再调整球滚动运行轨迹，再加筛后氧化铝粉继续长球；当球径增长到0.8‑0.9mm时，修球压球后氧化铝球的松装密度达到1.5g/cm以上；烘干进行15‑25小时的1300‑1400℃烧结之后得到氧化铝陶瓷研磨球。本发明的氧化铝陶瓷研磨球具有高纯度、低磨耗、高强度、表面光滑圆润的性质。
Preparation method of alumina milling balls
一种氧化铝陶瓷研磨球的制备方法
REN HONGBO (Autor:in) / JIA LIKUI (Autor:in) / LI YUAN (Autor:in)
08.05.2020
Patent
Elektronische Ressource
Chinesisch
Preparation method of mesoporous alumina balls with high specific surface area
| Europäisches Patentamt | 2021