Lakes mono-metal liner has its inner bore quenched with the carburized layer thickness as 1.5 to 1.8mm to achieve hardness of 58 to 60 HRC. The liner features high hardness, great corrosion resistance, no deformation and high surface finish. It can be applied on Gardner Denver duplex pumps such as FY-FXD7-1/2X10 series, FC-FXX5X8 series, FD-FXX5X10 series and FG-FXG5X6 series, etc.
The outer sleeve of Rundongâ??s bi-metal liner is made of forged carbon steel and features great wear resistance, while the inner sleeve is made of high-chromium alloy cast iron and features great resistance to wear and corrosion. Through thermal treatment, the inner sleeve reaches hardness of 61 to 64 HRC. In general, the service life of our bi-metal liner is 800 hours. The liner has won a great reputation among many oil fields.
Our ceramic liner is made of toughening zirconium oxide with fracture toughness (K) ranging from 10 to 15 Mpa, which is about 10 times of that of traditional ceramics. In addition, the liners flexural strength() is ranging from 600 to 800 Mpa, the Weibull modulus is 18m and the elasticity modulus (E) is 200Gpa. The ceramic liner features excellent resistance to wear and corrosion. Its average service life is longer than 3,000 hours, which significantly reduces the cost of well drilling.
The advantage of ceramic liners are as follow: 1. the ceramic liners can not only adapted to same tough environment such as deep oil reservior, hard stratum and severe earthless, but also can be used for offshore oil and natural gas exploration. 2. Compared with Bi-Metal liner, the serivice life of the ceramic liner is 5-10times higher, its maximum and minimum service life can reach more thna 4000 and 2000 hours respectively. 3. the Zirconia ceramic liner with have used the phase transformation toughen technology has various advantages such as wear-resistance, erosion-resistance, hight-pressure-resistance, high strength and high hardness. 4. the cost of shipment, maintaince, labor and storage in the drilling works can be reduced. 5. Compare with the Alumina liners, the zirconia liner have better toughness properties and longer service life, it can also reduce piston wear and water comsumption for lubrication. 6. Ceramic liners for drilling mud pump are widelu used in Coal, Non-ferrous metal, drilling field to improve drilling efficiency.
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