Amorphous coating hydraulic plunger

       The plunger pump is an important device in the hydraulic system. It relies on the reciprocating movement of the plunger in the cylinder body to change the volume of the sealed working cavity to achieve oil absorption and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment. Plunger pumps and other pumps are widely used in shipbuilding, oil exploration, and trucks. When the plunger moves backward, the outlet pipe valve is closed and the inlet pipe valve is opened, and the fluid is sucked into the cylinder from the inlet pipe. When the plunger moves forward, the inlet pipe valve is closed and the outlet pipe valve is opened, and the cylinder block The fluid in the pump is sent out from the outlet pipe when it is pressed, the plunger keeps reciprocating in the cylinder, and the fluid is continuously transported to the target mechanism. This is the function of the plunger. Usually the plunger is mainly used for high working pressure. the occasion. During the reciprocating process of the plunger, it is easy to be worn and corroded by the conveyed material, which seriously affects the production efficiency.



wococarbide.com uses HVAF spraying technology to prepare an amorphous alloy coating on the surface of the plunger. Because of this special substance, the wear and corrosion performance of the plunger is effectively improved. The main features of this special coating are as follows:



1. Coating thickness: 0.03mm, high coating hardness: MAX.HRC75, temperature resistance range: -40℃--800℃, thermal shock resistance: 650℃/100cycle, friction coefficient: 0.05—0.12, easy processing, coating The layer performance is more than 3 times higher than that of chrome plating. High bonding strength.



2. The amorphous alloy coating is an iron-based compression material, and its thermal expansion coefficient is almost the same as that of ordinary carbon steel materials, and the coating will not crack and peel due to thermal expansion when subjected to thermal shock. The flexibility is 3 times that of titanium alloy materials. It has a low weight loss rate in a corrosive environment.

This innovative design improves the utilization rate of materials, reduces the pollution of chrome plating to the environment, increases the service life of the plunger pump, reduces the number of unplanned shutdowns, and reduces maintenance costs.