Thread Wireline Drill Rods Heat Treatment BC BQ Type With Through
This wire line rod is the equipment that connects the drilling
tools and drilling bits, and it is mainly used to transmit power.
It mainly consists of a tubing body and two thread ends.
The function of the wire line drill rod :
(1) To transfer torque and rotation from the core drill rig to the
(2) To transfer the lifting and pull forces;
(3) To serve a distribution line for the flushing water;
(4) To serve as a distribution line for the inner tube assembly.
A wire line drill rod has a box thread in one end and a pin thread
in the other end. Right handed threads are commonly used. The
threads are cut directly in the tubing and special separate drill
rod couplings are not necessary. Thanks to this ,so called flush
jointed design,the wire line drill rods have an even and o constant
inner diameter which is a precondition for hoisting the inner tube
assembly.The threads are surface treated and the rod is heat
treated in order to prolong the life of the wire line rods.
Every wire line dimension requires a matching set of wire line
drill rods .i.e.if you change from drilling a B-size core barrel to
an other size ,meanwhile you must also exchange the size of wire
|No||Size||Drill rod||Thread type||Heat||Raw material||Designed hole depth|
|OD mm||ID mm||treatment|
|1||BQ||55.6||46||DCDMA standard||Heat treatment the whole pipe|
Our company’s Wire line drill rods are manufactured from the best
quality heat-treated seamless steel tubes (30CrMnSiA or XJY850).
Ultimate tensile strength, yield strength, high precision and good
straightness provide the best performance under different drilling
conditions. Our wire line drill rods are wildly used in fields(like
geology , metallurgy, coal, hydrology, civil engineering projects).