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Method for preparing polycrystalline diamond by taking coated diamond as raw material
The invention discloses a method for preparing polycrystalline diamond by taking coated diamond as a raw material, and belongs to the field of superhard material grinding materials and grinding tools. The main process comprises three parts of diamond surface purification, diamond surface plating, pre-pressing and high-temperature and high-pressure sintering. Wherein a plating material is selected from one or a combination of more of common catalysts such as iron, cobalt and nickel, and the growth condition of the diamond can be effectively regulated and controlled by regulating and controlling the plating time to change the thickness of a plating layer. The method is easy to operate, compared with a traditional method, the hardness, compactness and abrasive ratio of the polycrystalline diamond synthesized through the method are greatly improved, the synthesis conditions of the polycrystalline diamond can be reduced to a certain degree, and the method is suitable for industrial production.
本发明公开了一种以镀膜金刚石为原料制备聚晶金刚石的方法，属于超硬材料磨料磨具领域。主要过程分为金刚石表面净化、金刚石表面镀覆、预压及高温高压烧结三个部分。其中镀覆材料选用铁、钴、镍等常见触媒中的一种或几种组合，通过调控镀覆时间改变镀层厚度能有效调控金刚石生长情况。本发明操作简单，由此方法合成的聚晶金刚石与传统方法相比在硬度、致密度、磨耗比方面都有较大的提升，且在一定程度上能降低聚晶金刚石合成的条件，适合工业化生产。
Method for preparing polycrystalline diamond by taking coated diamond as raw material
The invention discloses a method for preparing polycrystalline diamond by taking coated diamond as a raw material, and belongs to the field of superhard material grinding materials and grinding tools. The main process comprises three parts of diamond surface purification, diamond surface plating, pre-pressing and high-temperature and high-pressure sintering. Wherein a plating material is selected from one or a combination of more of common catalysts such as iron, cobalt and nickel, and the growth condition of the diamond can be effectively regulated and controlled by regulating and controlling the plating time to change the thickness of a plating layer. The method is easy to operate, compared with a traditional method, the hardness, compactness and abrasive ratio of the polycrystalline diamond synthesized through the method are greatly improved, the synthesis conditions of the polycrystalline diamond can be reduced to a certain degree, and the method is suitable for industrial production.
本发明公开了一种以镀膜金刚石为原料制备聚晶金刚石的方法，属于超硬材料磨料磨具领域。主要过程分为金刚石表面净化、金刚石表面镀覆、预压及高温高压烧结三个部分。其中镀覆材料选用铁、钴、镍等常见触媒中的一种或几种组合，通过调控镀覆时间改变镀层厚度能有效调控金刚石生长情况。本发明操作简单，由此方法合成的聚晶金刚石与传统方法相比在硬度、致密度、磨耗比方面都有较大的提升，且在一定程度上能降低聚晶金刚石合成的条件，适合工业化生产。
Method for preparing polycrystalline diamond by taking coated diamond as raw material
一种以镀膜金刚石为原料制备聚晶金刚石的方法
LI ZHENGXIN (author) / ZHANG PENG (author) / HUANG LEIBO (author)
2022-09-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Method for preparing compact polycrystalline diamond and boron-doped polycrystalline diamond
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