Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of single-phase cubic boron nitride poly-crystalline sintered body
The invention discloses a method for preparing a single-phase pure cubic boron nitride poly-crystalline sintered body by taking cubic boron nitride micro powder as an initial raw material. The sintered body is good in heat resistance and high in hardness. The method comprises the following steps: 1, preferably selecting cubic boron nitride powder; 2, carrying out pre-pressing molding; 3, carryingout vacuum heat treatment; 4, assembling pyrophyllite synthetic block accessories; and 5, carrying out high-temperature and high-pressure sintering and the like, so as to complete the preparation of the single-phase pure cubic boron nitride poly-crystalline. The method disclosed by the invention is high in operability and is completed by one-time sintering on the existing cubic boron nitride poly-crystalline sintered body, and the wear resistance, the heat resistance, the hardness and the like of the single-phase cubic boron nitride poly-crystalline sintered body are greatly improved. The method provided by the invention provides an effective way for the preparation of a super-hard cutter material.
本发明属于一种耐热性好、硬度高的用立方氮化硼微粉作为初始原料制备单相纯立方氮化硼聚晶烧结体的方法。该方法的步骤1.优选立方氮化硼粉末，2.预压成型，3.真空热处理，4.叶腊石合成块配件组装，5.高温高压烧结等程序，完成单相纯立方氮化硼聚晶的制备。本发明的方法操作性强，在现有六面顶压机上一次烧结完成，单相立方氮化硼聚晶烧结体的耐磨、耐热、硬度等性能大幅度提升。本发明的方法将为超硬刀具材料的制备提供一种有效的途径。
Preparation method of single-phase cubic boron nitride poly-crystalline sintered body
The invention discloses a method for preparing a single-phase pure cubic boron nitride poly-crystalline sintered body by taking cubic boron nitride micro powder as an initial raw material. The sintered body is good in heat resistance and high in hardness. The method comprises the following steps: 1, preferably selecting cubic boron nitride powder; 2, carrying out pre-pressing molding; 3, carryingout vacuum heat treatment; 4, assembling pyrophyllite synthetic block accessories; and 5, carrying out high-temperature and high-pressure sintering and the like, so as to complete the preparation of the single-phase pure cubic boron nitride poly-crystalline. The method disclosed by the invention is high in operability and is completed by one-time sintering on the existing cubic boron nitride poly-crystalline sintered body, and the wear resistance, the heat resistance, the hardness and the like of the single-phase cubic boron nitride poly-crystalline sintered body are greatly improved. The method provided by the invention provides an effective way for the preparation of a super-hard cutter material.
本发明属于一种耐热性好、硬度高的用立方氮化硼微粉作为初始原料制备单相纯立方氮化硼聚晶烧结体的方法。该方法的步骤1.优选立方氮化硼粉末，2.预压成型，3.真空热处理，4.叶腊石合成块配件组装，5.高温高压烧结等程序，完成单相纯立方氮化硼聚晶的制备。本发明的方法操作性强，在现有六面顶压机上一次烧结完成，单相立方氮化硼聚晶烧结体的耐磨、耐热、硬度等性能大幅度提升。本发明的方法将为超硬刀具材料的制备提供一种有效的途径。
Preparation method of single-phase cubic boron nitride poly-crystalline sintered body
一种单相立方氮化硼聚晶烧结体的制备方法
JIA HONGSHENG (Autor:in) / E YUANLONG (Autor:in) / LI HAIBO (Autor:in) / LI DONGFEI (Autor:in) / ZHANG YONG (Autor:in) / LYU JUNCHENG (Autor:in) / ZHANG PUHUA (Autor:in)
19.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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