In mud pump drilling, mud is often used as a drilling fluid, both of which are abrasive and flow at high pressure, thus causing significant wear on some parts of the pump. In order to prolong the service life of the mud pump wearing parts, the damage process and the reason of the mud pump wearing parts must be analyzed and effective measures should be taken to improve the comprehensive benefit of the drilling work. First, mud pump wearing parts of the cylinder liner and piston wear characteristics Cylinder and piston reciprocating pump is the most damaged a pair of parts, the two of them in order to achieve the purpose of sealing and reliable, generally using a hard and soft material with a form of cooperation. Pistons are often made of flexible, flexible materials (such as synthetic rubber), while cylinder sleeves are made of harder materials (carbon steel and other quenched). The main form of this structure with the piston is the first bad, when they lose the role of sealing wear and tear, so that the pump (row) down, or even can not work, we must promptly replace the maintenance and treatment, in order to restore pump capacity. Second, mud pump wearing parts valve and seat wear characteristics The reciprocating pump valve and seat are also a pair of consumables that have a shorter life than the piston or cylinder liner and damage to either one of them will prevent the pump from functioning properly or at all. The phenomenon of valve damage is mainly between the valve and valve seal failure, sealing surface punctured. The reason for the damage is generally considered to have two aspects: one is when the pump valve is in normal working condition, the drill fluid containing drill cuttings will flow through the valve seat annular clearance with a certain regularity and energy and continue to scour the valve Seat and the valve with the surface, over time, the surface with scratches and grooves, the formation of lax seal; the second is when the valve drops off, the seat surface with the impact of continuous bearing load, so the impact will be combined with the surface Fatigue broken the scars, thus undermining the seal between the valve seat, a tiny "puncture." ã€Print】 ã€Close】