Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grinding medium and preparation method thereof
The invention discloses a grinding medium, which comprises the following raw materials in percentage by weight: a first raw material group: 90-95% of alumina powder, 0.5-2.0% of calcined talc, 1.0-3.0% of dolomite, 3.0-5.5% of Suzhou soil and 0.3-0.8% of yttrium oxide; and a second raw material group which comprises 0.2-1.0% of a plasticizer and 0.2-1.0% of a dispersing agent; meanwhile, the invention further discloses a preparation method of the grinding medium. By increasing the content of aluminum oxide in the grinding medium, the liquid phase amount in the sintering process is reduced. The finally prepared grinding medium is low in porcelainization degree and large in grain boundary energy, and large cracks are difficult to generate in the impact process. Therefore, according to the process, the impact resistance of the grinding medium is greatly improved, so that the grinding medium is suitable for a relatively severe dry grinding environment.
本发明公开了一种研磨介质，按重量百分比包括如下原料：第一原料组：90～95％的氧化铝粉、0.5～2.0％的烧滑石、1.0～3.0％的白云石、3.0～5.5％的苏州土和0.3～0.8％的氧化钇；第二原料组：0.2～1.0％的增塑剂和0.2～1.0％的分散剂，同时，本发明还公开了一种研磨介质的制备方法。本发明通过增加研磨介质中的氧化铝含量，降低了烧结过程中的液相量，最终制备的研磨介质瓷化程度低，晶界能较大，在冲击过程中很难产生大裂纹，大大增加了研磨介质的抗冲击性，使其适用于较恶劣的干磨环境中。
Grinding medium and preparation method thereof
The invention discloses a grinding medium, which comprises the following raw materials in percentage by weight: a first raw material group: 90-95% of alumina powder, 0.5-2.0% of calcined talc, 1.0-3.0% of dolomite, 3.0-5.5% of Suzhou soil and 0.3-0.8% of yttrium oxide; and a second raw material group which comprises 0.2-1.0% of a plasticizer and 0.2-1.0% of a dispersing agent; meanwhile, the invention further discloses a preparation method of the grinding medium. By increasing the content of aluminum oxide in the grinding medium, the liquid phase amount in the sintering process is reduced. The finally prepared grinding medium is low in porcelainization degree and large in grain boundary energy, and large cracks are difficult to generate in the impact process. Therefore, according to the process, the impact resistance of the grinding medium is greatly improved, so that the grinding medium is suitable for a relatively severe dry grinding environment.
本发明公开了一种研磨介质，按重量百分比包括如下原料：第一原料组：90～95％的氧化铝粉、0.5～2.0％的烧滑石、1.0～3.0％的白云石、3.0～5.5％的苏州土和0.3～0.8％的氧化钇；第二原料组：0.2～1.0％的增塑剂和0.2～1.0％的分散剂，同时，本发明还公开了一种研磨介质的制备方法。本发明通过增加研磨介质中的氧化铝含量，降低了烧结过程中的液相量，最终制备的研磨介质瓷化程度低，晶界能较大，在冲击过程中很难产生大裂纹，大大增加了研磨介质的抗冲击性，使其适用于较恶劣的干磨环境中。
Grinding medium and preparation method thereof
一种研磨介质及其制备方法
DING SHENLIANG (Autor:in) / WANG HUI (Autor:in) / LI TONG (Autor:in) / DONG WEIQIANG (Autor:in) / ZHANG GANG (Autor:in) / SONG XINYUE (Autor:in) / YU HONGLIN (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch
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