复合片取心钻头的研制及其应用  

Manufacture of Composite Slice Core Bit and Its Application

作　　者：刘梦溪 王彦君 康丽生[2] 

机构地区：[1]江苏省煤田地质勘探研究所,徐州221006 [2]郑州经济管理干部学院,郑州450052

出　　处：《中国煤田地质》2001年第3期69-74,共6页Coal Geology of China

基　　金：中国煤田地质总局Ⅱ类课题成果

摘　　要：由金刚石共晶体与硬质合金基座制成的复合体是一种新型超硬研磨材料,用它和特制的钻头胎体制成的复合片取心钻头适用于可钻性小于Ⅶ级岩石的钻进,它的应用可大大提高煤系地层特别是煤心的采取率。The composition made by diamond crystal and foundation of hard alloy is a n ew type of superhard abrasive.The co m-posite slice core bit which made by th e new superhard abrasive and specially made bit embryo,is applicable to d rilling the rocks less thanⅦgrade in drillability,and much rais e the core recovery in coal -bearing s trata(especially coal),so there are value of popular application.

关 键 词：金刚石 硬质合金 复合片 取心钻头 

分 类 号：P634.41[天文地球—地质矿产勘探]