苏联学者布加耶夫认为人造金刚石含磁性对金刚石强度及钻进效果均有较大影响。为了证实磁性对人造金刚石钻头的影响，无锡钻探工具厂和我队合作对人造金刚石进行了磁性分选（分选由无锡厂送南京大学进行），分别用有磁性、无磁性、未分类三种金刚石制成人造孕镶56绳索取芯钻头，在我队锦屏矿区两台钻机上进行了生产试验。 Soviet scholar Bugaev believes that the magnetic properties of synthetic diamond have a greater impact on diamond strength and drilling effect. In order to confirm the impact of magnetism on the synthetic diamond bit, Wuxi Drilling Tool Factory cooperated with our team to make magnetic separation of synthetic diamond (sorted by Wuxi Factory to Nanjing University), and used magnetic, nonmagnetic and unclassified respectively Diamond made of artificial impregnated 56 rope coring bit, drilling team in Jinping mine two sets of production tests carried out.