摘要
采用低温工艺制造金刚石钻头并成功用于钻探工业，在世界范围内我国属于首创。较全面地介绍了我国电镀金刚石钻头的制造工艺特点，为适应各种地层钻进需要而研制的钻头种类以及应用于地质钻探领域和延伸到其它工业部门的使用效果。
he manufacture of diamond bits by low temperature (normal) technique began in 1970s inthe world. It can be said that Chinese are the first to have made a breakthrough in this field andthey have put this into mass production and wide operation. After 20 years of work, the researchers of Electroplated Diamond Bits Research Section of China University of Geosciences,have developed successfully not only various sizes o.f electroplated diamond bits for geologicaldrilling, but also different series of electroplated thin wall engineering bits, petroleum bits andPDC bits, which amount to more than 10 thousands and are widely used in China and in othercountrIes.As the low temperature electroplated diamond bits are manufactured at normal temperature(20￣30℃ ), the original properties of the diamond can be protected from damage to a great extent. Moreover, the whole production is made in electricmagnetic field, so it is very difficult toavoid the arrangement of magnetic synthetic diamond in certain direction in the magnetic field,but their arrangement direction is just favorable for anisotropic synthetic diamond to break rocksby their strong side. Therefore, the fine properties of the diamonds can be made to their bestadvantage. In addition, the manufacture of low temperature electroplated diamond bits is carried out in a principle to have metal ion deposited on the steel body under the force of electricfield. Since the specifications of diamond bits are contrblled by mould, the manufature is simpleand thus results in low cost, which benefits the wide application of the products.The adaptability of the matrix obtained by certa.in electroplating liquid is limited, and theadaptability of bits generally means whether the diamonds can be exposed normally. Therefore,the matrix metal should be allowed to wear as normal as possible in order to guarantee the edging of the diamonds. Because different rocks have different hardness, especially different abrasiveness, the bit matrix will not be worn at the same level in different ty
出处
《探矿工程》
1996年第4期41-43,共3页
Exploration Engineering(Drilling & Tunneling)
关键词
电镀
金刚石钻头
地质钻探
low temperature electroplated diamond bit geological drilling application scope
