Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic composite grinding medium and preparation method thereof
The invention discloses a ceramic composite grinding medium and a preparation method thereof, and relates to the field of ceramic composite grinding media, a metal grinding medium is used as a metal inner core, the outer surface of the metal grinding medium is ground, the ground outer surface of the metal inner core is coated with a composite ceramic layer, then the composite ceramic layer is put into a ball forming mill, rolling is performed to form balls, and polishing, drying and sintering are performed to obtain the ceramic composite grinding medium. According to the ceramic composite grinding medium, the problems that an existing grinding medium is high in manufacturing cost and low in hardness are solved; the hardness of the ceramic composite grinding medium is increased by using the metal core, SiO2 dispersed in the grinding medium can absorb the impact energy of microcracks in the grinding medium and prevent the cracks from expanding, and B4C is subjected to oxidation reaction in the sintering and temperature rising process to generate chemical binding force with high bond energy, so that the ceramic composite grinding medium is prepared. B203 generated in a molten state can flow to a crack of a ceramic interface to inhibit crack diffusion, so that the ceramic interface is denser, and the purpose that a grinding medium is not easy to crack in the grinding process is achieved.
本发明公开了一种陶瓷复合研磨介质及其制备方法，涉及陶瓷复合研磨介质领域，通过将金属研磨介质作为金属内核，将其外表面打磨，将打磨后的金属内核外表面涂覆复合陶瓷层中，再放入成球机中，滚动形成球状，抛光，烘干，烧结，得到该陶瓷复合研磨介质，解决了现有的研磨介质制造成本高，而且硬度较低的问题；使用金属内核增加了陶瓷复合研磨介质的硬度，分散在研磨介质中的Si02可吸收研磨介质中微裂纹的冲击能，阻止裂纹扩大，烧结升温的过程中B4C发生氧化反应生成键能较高的化学结合力，熔融状态生成的B203会流动到陶瓷界面裂纹处抑制裂纹扩散，使陶瓷界面更加致密化，从而达到研磨过程中研磨介质不易开裂的目的。
Ceramic composite grinding medium and preparation method thereof
The invention discloses a ceramic composite grinding medium and a preparation method thereof, and relates to the field of ceramic composite grinding media, a metal grinding medium is used as a metal inner core, the outer surface of the metal grinding medium is ground, the ground outer surface of the metal inner core is coated with a composite ceramic layer, then the composite ceramic layer is put into a ball forming mill, rolling is performed to form balls, and polishing, drying and sintering are performed to obtain the ceramic composite grinding medium. According to the ceramic composite grinding medium, the problems that an existing grinding medium is high in manufacturing cost and low in hardness are solved; the hardness of the ceramic composite grinding medium is increased by using the metal core, SiO2 dispersed in the grinding medium can absorb the impact energy of microcracks in the grinding medium and prevent the cracks from expanding, and B4C is subjected to oxidation reaction in the sintering and temperature rising process to generate chemical binding force with high bond energy, so that the ceramic composite grinding medium is prepared. B203 generated in a molten state can flow to a crack of a ceramic interface to inhibit crack diffusion, so that the ceramic interface is denser, and the purpose that a grinding medium is not easy to crack in the grinding process is achieved.
本发明公开了一种陶瓷复合研磨介质及其制备方法，涉及陶瓷复合研磨介质领域，通过将金属研磨介质作为金属内核，将其外表面打磨，将打磨后的金属内核外表面涂覆复合陶瓷层中，再放入成球机中，滚动形成球状，抛光，烘干，烧结，得到该陶瓷复合研磨介质，解决了现有的研磨介质制造成本高，而且硬度较低的问题；使用金属内核增加了陶瓷复合研磨介质的硬度，分散在研磨介质中的Si02可吸收研磨介质中微裂纹的冲击能，阻止裂纹扩大，烧结升温的过程中B4C发生氧化反应生成键能较高的化学结合力，熔融状态生成的B203会流动到陶瓷界面裂纹处抑制裂纹扩散，使陶瓷界面更加致密化，从而达到研磨过程中研磨介质不易开裂的目的。
Ceramic composite grinding medium and preparation method thereof
一种陶瓷复合研磨介质及其制备方法
ZHU ZHENYU (Autor:in) / MENG CHAO (Autor:in) / REN YONGGUO (Autor:in) / FAN XIAOYOU (Autor:in)
11.11.2022
Patent
Elektronische Ressource
Chinesisch
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