Many factors affect the service life of rock drilling tools, and they are also very complex. In addition to internal factors such as steel type and process, external factors such as corrosion, bending, and bumping during transportation and storage also directly or indirectly affect the service life of rock drilling tools. Therefore, to maximize the service life of rock drilling tools, in addition to choosing high-quality rock drilling tools, prevention should be taken during transportation, storage, and use. Especially the drill rod, it is a slender rod and more likely to cause damage. How to reasonably carry out transport, storage, and use the drill rod is particularly important for enterprises.

Transportation Precautions

1. Civilized loading and unloading

In the process of loading and unloading, the goods are easy to be subjected to violent handling. Rock drilling tools are steel products, and unprofessional loading and unloading personnel will take it for granted that this loading and unloading method will not cause damage to them. On the contrary, the cyclic stress is very sensitive to the surface damage of the drill rod, which will directly lead to sudden fracture, and the formation of fatigue failure, so civilized loading and is necessary.

2. Double packing

To effectively prevent bending, bumping, and water hole blockage, double-layer packaging should be used according to regulations, namely, the inner layer is softly packaged and the rock drilling tools should be separated by plastics. In addition, plastic sleeves and water hole plugs should be inserted at both ends of the rod.

3. Prevent rain and water immersion

The material of the drill rod is brazing steel. After being drenched in rain or water, the drill rod is prone to rust due to the action of moisture and oxygen in the atmosphere, shortening the service life. Therefore, it is necessary to strictly prevent rain and water immersion during transportation.

Precautions for storage

1. Classified storage

Drill rods that have not been wetted and are well packaged should be classified and placed on the rock drill tools rack after acceptance.

2. Pay attention to storage

The storeroom should be dry and ventilated, moisture-proof, rust-proof, and kept in good condition.

Drill rods with damaged packaging or damp, bent, bruised, or blocked water holes should be inspected and repaired one by one, and then repackaged and stored separately.

Precautions for use

1. Before use

①When leading and sending drill rods, pay attention to prevent bending, rust, injury, and blocking.

②Before drilling, we should check the wear state of the rock drill shank adapter, the operation of the rock drilling equipment, and the overall condition of the drill rod.

2. Correct selection of rock drilling tools and equipment

①The length of the drill rod should meet the depth required, and should not be too long.

②The connection status of the drill rod and the drill bit should meet the requirements, and the dimensional accuracy and contact conditions should be good.

③Choose drill bits with fast drilling speed and long service life. Its diameter should meet the requirements of the drilling hole diameter, and should not be too large.

④ The hydraulic rock drilling equipment with moderate and adjustable impact power, good stress waveform, and anti-jamming and automatic feeding facilities is preferred.

3. In use

start drilling with less impact power, and adjust the shaft thrust, wind pressure, and water quantity appropriately. Keep the rock drill and the rock drilling tools consistent with the axis of the drilling hole at any time, so that the chip removal is unobstructed and the drill rod rotates flexibly.

4. After use

①Repair and replace blunt drill bits and expired drill bits in time, and it is forbidden to use blunt drill bits.

②Use the special tool to discharge the rock drilling tools. Do not use a hand hammer to remove the drill bit.

③The drill rod should be wiped dry, oiled, and placed flat on the special drill rod holder immediately after use.

In short, the correct transportation, storage, and use of drill rods are inseparable from the “five prevention” work. that is to say, in the whole process from the factory to the failure of drilling, it is necessary to do a good job of anti-rust, anti-bending, anti-injury, waterproof hole blocking, and anti-grade mixing. Not only the drill rod, the transportation, storage, and use of any rock drilling tools should follow the “five preventions” work. As long as it is in place, it can reduce the impact of external factors on the service life of rock drilling tools. It is preferred to choose high-quality rock drilling tools made by professional drilling tool factories to prevent the occurrence of internal factors. Only the combined action of internal and external factors can effectively prolong the service life of rock drilling tools.