The integral drilling tools (integral drill rod) is forged from a single piece of hexagonal hollow alloy steel. One end is the drill shank (connected to the rock drill), and the other end is the drill bit inlaid with hard alloy. The rod body has a central water passage hole for slag removal.
Based on the cutting edge type, commonly used integral drilling tools include straight-edged, cross-shaped, composite-tooth, ball-tooth, and three-edged types. The cross-section of the rod is usually hexagonal.
According to customers feedback, we filed some common issues while the integral drilling tools operated:
1. Bit chipps, breaks teeth, and wears quickly. This could be caused by excessively hard rock, excessive impact, and uneven force during drilling. Insufficient water and air flow, poor slag removal, and repeated breakage may also cause such problems. Symptoms include slow bit advance and short drilling life.
2. Body is bent or deformed. Possible causes include excessive force during rock drilling, forcibly prying away cuttings, hole misalignment, lateral force on the rod, and material fatigue. Symptoms include uneven drilling, stuck drill rod, and excessive vibration.
3. Chipping, wear, and baldness of the drill bit shank. This may be due to improper piston impact in the rock drill, insufficient lubrication, or mismatched integral drilling tool shank hardness. Symptoms include insufficient drilling force, low efficiency, and even damage to the drilling rig.
4. Cracks and breakage of the integral rod. This is caused by repeated fatigue stress, forceful pulling during drill jamming, and material heat treatment issues. It manifests as direct breakage at the rod body or shoulder.
5. The flushing hole is blocked, preventing water and slag removal. This problem may be caused by rock powder or mud clogging the hole, or a lack of water in the borehole. Symptoms include burnt drill bit, stuck drill bit, and slow advance.
How to maintenance?
Before using, carefully check the condition of the drill bit to ensure there is no chipping, missing teeth, or other damage. Also check if the drill shank is flat and free of chipped corners to ensure a proper fit with the rock drill. Pay special attention to ensuring the flushing hole is clear to avoid blockages.
During using, make sure to follow the correct operating procedures. Be gentle when drilling, and gradually increase the force after the drilling hole is stable. Ensure uninterrupted water and air supply throughout the process to ensure timely removal of rock powder and avoid repeated crushing that will aggravate wear on the drill bit. It is strictly forbidden to forcibly pry off the slag, forcefully pull the rod, or operate in a rough manner. If the drill bit is stuck, the drill must be withdrawn first to check. Do not force it or pull it to prevent the drill rod from bending or cracking.
After using, promptly clean the rock powder and mud attached to the surface of the rod. Thoroughly unclog the flushing hole to prevent residual impurities from clogging it, and apply anti-rust oil after cleaning to prevent rust.
When storing, lay the entire rod flat or hang it up to avoid throwing it on the ground or putting heavy pressure on it, which can prevent the rod from bending and deforming. Store it in a dry and ventilated place, avoiding exposure to sunlight and rain, and do not pile it up too high. Take further precautions to ensure its performance for the next use.
