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本文在大量实验基础上观察分析了引起 PDC(多品金刚石块)复合片的硬质合金(WC+Co)损伤的因素,提出了减少或消除损伤的途径。PDC 复合片在6GPa、1400℃以上的压力、温度下的烧结过程中,用作 PDC 衬底的硬质合金经常产生开裂或含有未露出表面并贯穿PDC 整体而最终导致开裂,这种损伤直接影响到 PDC 烧结的成功率和质量检验的复杂性,设法减少或消除这种损伤是一个重要问题。我们提出了八个方面的损坏因素和减少、消除这些
In this paper, a large number of experiments based on the observed and analyzed PDC (polycrystalline diamond) composite pieces of cemented carbide (WC + Co) damage factors, proposed ways to reduce or eliminate the damage. PDC Composite At 6 GPa, sintering temperatures above 1400 ° C, cemented carbides used as PDC substrates often crack or contain unexposed surfaces and penetrate through the PDC as a whole to eventually cause cracking, which damage has a direct effect The success of PDC sintering and the complexity of quality testing, and trying to reduce or eliminate this damage is an important issue. We propose eight aspects of damage and reduce and eliminate these