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地质岩心钻头是钻取岩心、了解地层地质情况、寻找矿床的工具。传统的岩心钻头制造工艺一般是在钻头体上镶焊硬质合金齿,选用的硬质合金牌号为YG6、YG8和YG4C等,型号为TO型、T_1型和T_3型。这这种镶焊钻头由于钻齿裸露在外面,钻进时容易折断;同时钻齿大部分埋入钻体,没有得到充分利用,浪费了贵重的硬质合金材料。
Geological core drill bit is drilled core, understand the geological conditions of stratigraphy, looking for the deposit tool. Conventional core drill manufacturing process is generally in the bit body with diamond carbide welding teeth, the choice of cemented carbide grades YG6, YG8 and YG4C, model TO, T_1 and T_3 type. This diamond-studded drill bit is exposed on the outside due to the drilling tooth, which is easy to break when drilling. At the same time, most of drilling teeth are buried in the drill body and are not fully utilized, thus wasting precious hard alloy materials.