公开(公告)号：US20100005728A1

公开(公告)日：2010-01-14

申请号：US12499679

申请日：2009-07-08

Applicant: FEDERICO BELLIN

Inventor： FEDERICO BELLIN

IPC: C09K3/14 ,  B01J3/06 ,  C01B21/064

CPC classification number: B01J3/062 ,  B01J2203/062 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/0685

Abstract: The present invention relates to polycrystalline ultra hard material cutting elements, and more particularly to a method of forming a polycrystalline ultra hard material cutting element with a thicker ultra hard layer than cutting elements formed by prior art methods. In an exemplary embodiment, such a method includes pre-sintering the ultra hard material powder to form an ultra hard material layer that is partially or fully densified prior to HPHT sintering, so that the ultra hard layer is pre-shrunk. This pre-sintering in an exemplary embodiment is achieved by means of a spark plasma process, or in another exemplary embodiment by a microwave sintering process.

Abstract translation: 本发明涉及多晶超硬材料切割元件，更具体地涉及一种形成具有比通过现有技术形成的切割元件更厚的超硬层的多晶超硬材料切割元件的方法。 在一个示例性实施例中，这种方法包括预烧结超硬材料粉末以形成在HPHT烧结之前部分或完全致密化的超硬材料层，使得超硬层被预收缩。 在示例性实施例中的这种预烧结通过火花等离子体工艺实现，或者在另一示例性实施例中通过微波烧结工艺实现。