聚晶金刚石复合片脱Co增强性能研究  

Remove cobalt to enhance performance of polycrystalline diamond compact

作　　者：秦伟丽 衡军 骈小璇 栗正新[2] 栗晓龙[2] QIN Weili;HENG Jun;PlAN Xiaoxuan;LI Zhengxin;LI Xiaolong(Zhengzhou New Aisa Superhard Material Composite Co.,Ltd.,Zhengzhou 450001;Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]郑州新亚复合超硬材料有限公司,郑州450001 [2]河南工业大学材料科学与工程学院,郑州450001

出　　处：《金刚石与磨料磨具工程》2018年第3期16-20,共5页Diamond & Abrasives Engineering

摘　　要：在制备普通聚晶金刚石复合片(PDC)的基础上,将一次合成的聚晶金刚石进行脱Co处理,再重新组装进行二次合成。新合成PDC的耐磨性、抗冲击性能和耐热性等有很大提高,其平均体积磨耗比达到5.20×10~6,比普通产品的磨耗比高约40%;金刚石层中Co的减少并未造成其抗冲击性能的下降;耐热性能也大幅度提高。脱Co处理能有效减少金刚石层中的Co含量,并改善其结合剂分布的均匀性,抑制结合剂的局部聚积,最终使金刚石层中D-D键数量明显增多,PDC的耐磨性提高。Based on the common PDC preparation,synthetic polycrystalline diamond was treated by cobalt removal,reassembled and then synthesized again.Tests indicate that new PDC has better performance on abrasion resistance,impact resistance and heat resistance.The average volume abrasion ratio reached 5.20×10~6,about 40% higher than that of normal products;the reducing of cobalt bond in diamond layer does not decrease the impact resistance;heat resistance is greatly improved.The cobalt removal could effectively reduce the cobalt content in the diamond layer,and improve the uniformity of bond distribution by inhibiting of local accumulation of the bond.Eventually,there appear more D-D bonds in diamond layer,thus improving the wear resistance of PDC product.

关 键 词：聚晶金刚石复合片 脱Co处理 二次合成 

分 类 号：TQ164[化学工程—高温制品工业] TQ153