content
Imbedded core bit is a commonly used tool in fields such as geological exploration and engineering drilling. The following are the correct ways to use it:
I. Preparations before use
Inspection of the bit
Carefully inspect the appearance of the bit to ensure there are no obvious damages, cracks or deformations.
Check the distribution and imbedding of the diamond particles to ensure they are uniform and firm.
Selection of the appropriate drill rod and equipment
Based on the drilling depth, geological conditions and bit specifications, select the matching drill rod and drilling equipment.
Ensure the stability of the equipment's performance and that it can provide sufficient torque and rotational speed.
Preparation of cooling and lubricating fluids
Usually, water or special coolant is used to reduce the temperature of the bit and reduce wear.
Ensure the sufficient supply and normal circulation of the coolant.
II. Installation and commissioning
Correct installation of the bit
Firmly install the bit on the drill rod to ensure a tight connection and avoid loosening.
Commissioning of equipment parameters
Set the appropriate rotational speed, feed force and torque based on the geological conditions and the characteristics of the bit.
Generally speaking, in harder formations, the rotational speed should be appropriately reduced and the feed force increased; in softer formations, the rotational speed can be increased and the feed force appropriately reduced.
III. Operations during the drilling process
Constant-speed drilling
Maintain a uniform and stable drilling speed and avoid sudden acceleration or deceleration.
This can reduce the impact and wear of the bit, improve the drilling efficiency and the service life of the bit.
Control of the feed force
According to the hardness of the formation and the drilling situation, adjust the feed force in a timely manner.
Excessive feed force may cause damage to the bit, while too little will affect the drilling efficiency.
Attention to cooling and lubrication
Ensure a continuous supply of coolant to the bit and keep the temperature of the bit within an appropriate range.
Monitoring of the drilling situation
Closely observe the vibration, sound and chip removal during the drilling process.
If there are any abnormalities, stop the machine in time for inspection and troubleshooting.
IV. Maintenance after use
Cleaning of the bit
Remove debris, soil and oil stains from the bit.
Inspection of the wear condition
Evaluate the wear degree of the bit, especially the wear of the diamond particles.
For severely worn bits, replace or repair them in time.
Proper storage
Store the bit in a dry and well-ventilated place to avoid dampness and collisions.
For example, in a certain geological exploration project, the staff conducted a comprehensive inspection of the embedded core bit before use and found that the imbedding of one diamond particle was not firm and repaired it in time. During the drilling process, they flexibly adjusted the rotational speed and feed force according to the changes in the formation, which extended the service life of the bit by 30% and improved the drilling efficiency at the same time.
In conclusion, the correct use of imbedded core bits requires thorough preparations before use, careful operations during the drilling process and proper maintenance after use. Only in this way can its performance be fully exerted and the quality and efficiency of the drilling work be improved.