Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic corundum abrasive and preparation method thereof
The invention discloses a ceramic corundum abrasive and a preparation method thereof. The preparation method comprises the following steps: (a) weighing materials, (b) mixing and uniformly stirring titanium-containing bauxite ore, nanoscale alumina powder, industrial alumina powder and a rare earth modifier to obtain a mixed material, (c) preparing a PVA aqueous solution, (d1) carrying out primarygrinding, (d2) carrying out fine grinding, (d3) adding a PVA aqueous solution into the slurry obtained by fine grinding, carrying out mixed grinding, and removing iron, (e) aging the slurry obtainedafter iron removal, (f) adding a PVA aqueous solution into the aged slurry, and carrying out spray granulation to obtain granulated powder, (g) carrying out spinning high-pressure forming on the granulated powder to obtain a green body, (h) putting the green body into a high-temperature sagger, scattering isolation sand, feeding the green body into a high-temperature tunnel kiln and carrying out high-temperature sintering, (i) removing the isolation sand adhered to the product after high-temperature sintering, and (j) crushing and screening the powder-cleaned product to obtain the ceramic corundum abrasive materials with different particle sizes. The ceramic corundum abrasive is good in ball-milling toughness and hydrophilicity, high in sharpness, high in self-sharpening and low in grinding heat.
本发明公开了一种陶瓷刚玉磨料及其制备方法,包括以下步骤：(a)称料；(b)将含钛铝矾土矿、纳米级氧化铝粉、工业氧化铝粉、稀土改性剂混合并搅拌均匀得到混合物料；(c)配制PVA水溶液；(d1)初磨；(d2)细磨；(d3)向细磨得到的浆料中加入PVA水溶液进行混磨，并进行除铁；(e)将除铁后得到的浆料进行陈腐；(f)向陈腐后的浆料中加入PVA水溶液，进行喷雾造粒，得造粒粉；(g)将造粒粉通过旋压高压成形得到生坯；(h)将生坯放入高温匣钵，撒上隔离砂，送入高温隧道窑内进行高温烧结；(i)将高温烧结后产品上粘附的隔离砂清除；(j)将清粉后的产品经破碎后筛分，得到不同粒度的陶瓷刚玉磨料。本发明陶瓷刚玉磨料球磨韧性和亲水性好，具有高锋利性、高自锐性、低磨削热。
Ceramic corundum abrasive and preparation method thereof
The invention discloses a ceramic corundum abrasive and a preparation method thereof. The preparation method comprises the following steps: (a) weighing materials, (b) mixing and uniformly stirring titanium-containing bauxite ore, nanoscale alumina powder, industrial alumina powder and a rare earth modifier to obtain a mixed material, (c) preparing a PVA aqueous solution, (d1) carrying out primarygrinding, (d2) carrying out fine grinding, (d3) adding a PVA aqueous solution into the slurry obtained by fine grinding, carrying out mixed grinding, and removing iron, (e) aging the slurry obtainedafter iron removal, (f) adding a PVA aqueous solution into the aged slurry, and carrying out spray granulation to obtain granulated powder, (g) carrying out spinning high-pressure forming on the granulated powder to obtain a green body, (h) putting the green body into a high-temperature sagger, scattering isolation sand, feeding the green body into a high-temperature tunnel kiln and carrying out high-temperature sintering, (i) removing the isolation sand adhered to the product after high-temperature sintering, and (j) crushing and screening the powder-cleaned product to obtain the ceramic corundum abrasive materials with different particle sizes. The ceramic corundum abrasive is good in ball-milling toughness and hydrophilicity, high in sharpness, high in self-sharpening and low in grinding heat.
本发明公开了一种陶瓷刚玉磨料及其制备方法,包括以下步骤：(a)称料；(b)将含钛铝矾土矿、纳米级氧化铝粉、工业氧化铝粉、稀土改性剂混合并搅拌均匀得到混合物料；(c)配制PVA水溶液；(d1)初磨；(d2)细磨；(d3)向细磨得到的浆料中加入PVA水溶液进行混磨，并进行除铁；(e)将除铁后得到的浆料进行陈腐；(f)向陈腐后的浆料中加入PVA水溶液，进行喷雾造粒，得造粒粉；(g)将造粒粉通过旋压高压成形得到生坯；(h)将生坯放入高温匣钵，撒上隔离砂，送入高温隧道窑内进行高温烧结；(i)将高温烧结后产品上粘附的隔离砂清除；(j)将清粉后的产品经破碎后筛分，得到不同粒度的陶瓷刚玉磨料。本发明陶瓷刚玉磨料球磨韧性和亲水性好，具有高锋利性、高自锐性、低磨削热。
Ceramic corundum abrasive and preparation method thereof
一种陶瓷刚玉磨料及其制备方法
WANG CHAO (Autor:in) / ZHAO GUOQING (Autor:in) / WANG FENG (Autor:in) / ZHENG BIN (Autor:in) / ZHU HONGHAI (Autor:in)
14.08.2020
Patent
Elektronische Ressource
Chinesisch
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