YOU ARE HERE >
HOME >
DIAMOND DRILL BIT
The structure and characteristics of diamond drill bits
Publish Date:2020-08-17
The diamond drill bit is an integrated drill bit. The whole drill bit has no moving parts. It mainly includes the bit body, crown, hydraulic structure (including water eye or nozzle, slot also known as runner, chip flute), gauge, cutting edge (tooth) Five parts.The crown of the diamond bit is the working part of the bit for cutting rock. Its surface (working surface) is inlaid with diamond material cutting teeth and is arranged with a hydraulic structure. Its side is the gauge part (inlaid gauge teeth), it and the bit body Connected, made of tungsten carbide carcass or steel material.
The bit body is a steel material body, the upper part is threaded and connected to the drill string, and the lower part is connected to the crown carcass (the steel crown is integrated with the bit body).
The hydraulic structure of diamond drill bits is divided into two categories. The first type is used for natural diamond drill bits and TSP drill bits. The drilling fluid of this type of drill bit flows out from the central water hole, and is dispersed through the surface of the drill bit to the working surface of the drill bit to cool, clean and lubricate the cutting teeth, and finally carry the cuttings from the side water groove and The chip flute flows into the annular space. The other type is used for PDC bits. The drilling fluid of this type of bit flows out from the water hole, and is distributed to various parts of the working surface of the bit through various diversion elements to cool, clean and lubricate the cutting teeth. The position and number of water holes of the PDC bit are determined by the bit structure.
The gauge part of the diamond material plays the role of righting the drill bit and ensuring that the diameter of the well does not shrink when drilling. The method of inserting diamonds on the side of the drill bit is used to achieve the purpose of gauge gauge.
Tags:
RETURN
The structure and characteristics of diamond drill bits
2020-08-17
Diamond bit is a very broad concept. It is a tool for drilling with diamond powder embedded in the bit body. Because diamond products are very rich, such as PCD, PDC, ordinary diamond powder, etc., it is formed a series of product lines of diamond drill bits. This article mainly introduces common diamond drill bits and their common structures and characteristics....
The structure of the diamond bit and cutting material
2020-11-09
The diamond drill bit is composed of five parts: drill body, crown, hydraulic structure, gauge, and cutting edge, each of which has its own function. As the main part of cutting, the cutting material of the drill bit is also a very critical part. This article introduces the structure of the diamond bit and the cutting bit, so that everyone has a preliminary understanding of the diamond bit....
Advantages and disadvantages of diamond drill bits
2020-08-17
Diamond drill bits have obvious advantages and disadvantages. The advantages are high hardness, high compressive strength and good wear resistance. But the shortcomings are also obvious, such as relatively brittle, easy to crack, and then low thermal stability, easy to become graphite with low hardness. This article helps us understand this part of knowledge....
