CAJ | 학술논문

为延长合成金刚石用硬质合金顶锤使用寿命，改善金刚石合成质量，研究了硬质合金顶锤的冷却方式并加以优化。将冷却水通过加热顶锤，使之保持在一个相对较低的温度，以减少顶锤消耗；但冷却加热顶锤的同时，这一措施也导致腔体内部温度场不均匀，连聚晶的比例增加了8%。经研究分析，将6个硬质合金顶锤同时冷却，独立调节冷却水流量，使各个顶锤按照预期的效果进行冷却，并均衡腔体内部温度场，以提高金刚石合成质量。结果表明：采用6个顶锤同时、独立冷却的方法，不仅使顶锤消耗减少61%，同时提高了合成金刚石的质量，使连聚晶比例降低了15%，粒度集中度提高了8%。
위연장합성금강석용경질합금정추사용수명，개선금강석합성질량，연구료경질합금정추적냉각방식병가이우화。장냉각수통과가열정추，사지보지재일개상대교저적온도，이감소정추소모；단냉각가열정추적동시，저일조시야도치강체내부온도장불균균，련취정적비례증가료8%。경연구분석，장6개경질합금정추동시냉각，독립조절냉각수류량，사각개정추안조예기적효과진행냉각，병균형강체내부온도장，이제고금강석합성질량。결과표명：채용6개정추동시、독립냉각적방법，불부사정추소모감소61%，동시제고료합성금강석적질량，사련취정비례강저료15%，립도집중도제고료8%。
In order to prolong anvil life and improve the quality of synthesized diamond,the cooling mode of anvil was studied and optimized.Cooling water could keep the anvil at a lower temperature and reduce the anvil abrasion.But it could lead to a non-uniform temperature field inside the anvil and increase 8% of polycrystalline. In our present work, cooling six anvils simultaneously and independently was an effective way to balance temperature distribution inside the furnace and improve the quality of synthetic diamond.Results showed that it not only reduced anvil abrasion by 61%,but also improved diamond quality with 15% less polycrystalline and 8% increased concentration.