The ball tooth drill head types and their respective characteristics

发布时间：2014/6/20

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Domestic drill bit is mainly divided into flake drill bit tooth bit and column. Carbide drill bit in the relatively neutral and more general application of brittle rock under the condition of carbide drill bit in production process and technical requirements are relatively high, because if there is damage in the process of drilling operation to replace up more troublesome, effect is larger. Can the current domestic manufacturer of this kind of product is not a lot. The ball tooth drill head is one of the carbide bit more special drill bit, it is suitable for hydraulic drill jumbo for in the deep hole drilling operations. The ball tooth drill head alloy is generally adopted by the cemented carbide. Its shape basically has the following four: One and a half, the spherical gear: when applied to the hydraulic rock drill, under the condition of impact enough, its energy utilization rate is higher, so the rock damage effect is relatively better, and its alloy tooth will be more strong and abrasion resistance. 2, cone-shaped alloy ball tooth in drilling rock would seem to be more free, because of its cone shape make it rock drill speed can reach a higher state, in which impact energy is not very sufficient cases, the ball tooth drill head cone alloy the efficiency will be higher some, fly in the ointment is its resistance to wear and corrosion resistant performance is less. Three, parabolic type ball tooth drill head, between the above two kinds of shape of a ball tooth drill head. The current domestic enterprise to use less, the user alloy factory mainly foreign or sino-foreign joint venture of some manufacturers. Four, wedge type ball tooth more applied to some of the hard rock. The ball tooth drill head has longer effective use period, wear resistance, and the characteristics of fast drilling, greatly improving the construction speed, reduce the expense of workers physically. Reduces the production cost.