Drill Pipe

Drill rod is a tool used to connect drill bit and rock drill in shaft engineering.Mine engineering general use of the drill rod for the hexagonal hollow steel and hollow steel, hexagonal hollow steel cutting inside garden of 22 mm and 25 mm in diameter, outside diameter of hollow garden steel and 38 mm to 32 mm, steel has finished steel and forging steel, the length of the finished soldering is according to certain forging good brazing head chisel eye straight after installation, forged steel is the hollow six Angle steel, shear according to need to use dressing machine forging shanks and qian first, and then fitted with drill bit chisel.

After quenching, shot peening and anticorrosive treatment, the threaded rod of our company increases its surface hardness, wear resistance and fatigue strength, as well as the notch sensitivity of the threaded rod surface, so as to better connect the bit tail and the high-heat softening resistance generated at the connection