Hot - pressed tube thin - wall bit

Diamond impregnated bits possible failure and elimination method how to wear and tear:

1、Diamond impregnated bits possible failure and elimination method how to wear and tear.

Reason：

（1）The rock is harder and denser；

（2）The selected diamond bit is too hard and the diamond concentration is too high；

（3）The rig is over age, the diesel engine is not powerful enough, the bit pressure is not big, and the speed is not high；

solution：

（1）According to the nature of the rock choose a soft matrix hardness or choose serrated electroplating bit or hot pressure bit；

（2）Choose the low concentration bit；

（3）Choose rig with good mechanical performance, such as XY-2B, repair and maintain the diesel engine to ensure sufficient horsepower; General hole depth 0-200 meters,XY-2PC can be handled; If the hole depth is 0-300 meters or more than 300 meters, type 1000 drilling machine is recommended.

2、Diamond bit inner and outer diameters are ground into horns or steps

Reason：

（1）At the bottom of the hole were fragments of the body；

（2）Sweep the probe stone with drill bit；

（3）Forced drilling after the core is blocked；

（4）The rock strata drilled are hard and brittle； 

Solution：

（1）Use the old drill to grab the pieces and break up the metal, or use the ground drill to clear the bottom of the hole；

（2 When the probe stone is encountered, it is best to clean with the old bit or the reaming bit；

（3）After blocking, first gently lift the drill tool, repeated three times without effect, must lift the drill；

（4）In case of hard and brittle stratum, HRC45 or higher hardness is used body；

3、Fetal damage or partial wear

Reason:

（1）Bit steel or drill string with different core from the bit

（2）The drilling tool vibrates violently

Solution：

（1）Improve the stability of drilling tools and stabilize the field. The mechanical installation is stable and the circumference is level, and the horizontal ruler is used for careful measurement. Center alignment of the drive shaft between the rig and the diesel engine; Ensure the drill pipe is vertical; Conditions permit the use of emulsifying wash；

（2）The drill tool does not bend and deform first, if discover different core and supply group contact or contact with our factory directly change.

4、Pay attention to drilling: its symptom diesel engine sudden back force; The water pump pressure gauge suddenly increased; Other factors: First, blind pressure, the pursuit of progress, not timely discharge of powder, resulting in the silting of rock powder in the hole, resulting in burning drill; Insufficient supply of secondary washing fluid or interruption of circulation.

5、Manual blade selection: Once the lip is struck with a file, the lip can be left with a groove or the surface can be roughened. Second purpose grindstone or sand stone artificial grinding bit; Three use aqua (hydrochloric acid and nitric acid = 6, corrosion; The drill bit is soaked with waste electricity; Five such as airports or projects have a grinder, grinding wheel machine available grinding diamond impregnated bits surface, can achieve a certain effect.

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Developed by our company is mainly engaged in impregnated diamond bit for more than 20 years, formula design of rock bit drilling technology structure technology has a deep understanding of the product application areas include: engineering survey and geological prospecting concrete core pulling test pile soil survey.

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