国产金刚石与进口金刚石对比的试验研究  

Experimental Study on Comparison betweenDomestic Diamond and Imported Diamond

作　　者：徐强[1] 刘一波[1,2] 杨志威[2] 舒晨 XU Qiang;LIU Yibo;YANG Zhiwei;SHU Chen(Central Iron&Research Institute Group,Beijing 100081,China;Beijing Gang Yan Diamond Products Company,Beijing 102200,China;Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]钢铁研究总院,北京100081 [2]北京安泰钢研超硬材料制品有限责任公司,北京102200 [3]兰州理工大学,甘肃兰州730050

出　　处：《超硬材料工程》2024年第2期14-20,共7页Superhard Material Engineering

摘　　要：对三种品级的进口金刚石与国产金刚石样品的性能进行了全面的对比,以了解目前国产金刚石与国外高品级金刚石性能的差异。系统地分析了进口金刚石的性能指标,包括单颗粒静压强度、热冲击强度TTI、冷冲击强度TI、磁化率以及晶型构成等,提出了国产金刚石对标进口金刚石的思路。最后将这些金刚石制成Φ350 mm锯片做切割试验,对比国产与国外金刚石的实际使用效果。试验结果表明:湿切C45混凝土时,国产金刚石与进口金刚石切割速度基本相当,干切C25时,国产金刚石比进口金刚石慢15%左右,进口金刚石的切割手感要好于国产金刚石。从切割后顶刃金刚石状态可以看出进口金刚石切削刃会出现微破碎,能够持续稳定干切。在建筑工程湿切的应用中,国产金刚石的性能接近于国外中档品级产品的水平,干切时和进口金刚石还有一定的差距。The properties of three types of imported diamond samples and domestic diamond samples were compared in order to gain a comprehensive understanding of the distinctions between domestic diamonds and foreign high-grade diamonds.The performance indexes of imported diamonds were systematically analyzed,including single particle static pressure strength,TTI,TI,magnetic susceptibility and crystal form composition,etc.The idea of benchmarking imported diamonds with domestic diamonds was proposed.Finally,these diamonds were made intoΦ350 mm saw blade for cutting experiments,comparing the actual use effect of domestic and foreign diamonds.The experimental results show that when wet cutting C45 concrete,the cutting speed of domestic diamond is basically equivalent to that of imported diamond.When dry cutting C25,domestic diamond is about 15%slower than imported diamond,and the cutting feel of imported diamond is better than that of domestic diamond.From the state of the top edge diamond after cutting,it can be seen that the imported diamond cutting edge will experience micro fragmentation and can continuously and stably dry cut.In the application of construction engineering,the performance of domestic diamonds is close to the level of foreign mid grade products during wet cutting,but there is still a certain gap compared to imported diamonds during dry cutting.

关 键 词：国产金刚石 进口金刚石 对标分析 使用性能 

分 类 号：TQ164[化学工程—高温制品工业]