Experimental research on the friction and leakage of the metal rubber seal for reciprocating motion

Abstract

Metal seals are widely used to solve the sealing problem in severe conditions. For reciprocating motion sealing problems, a metal rubber seal was proposed by combining the metal rubber (MR) materials with an axial opening C-shape jacket. In this research, to study the reciprocating sealing performance of metal rubber seals, a series of leaking experiments were carried out with a dynamic sealing test system. The friction force of the MR seal was measured under a variety of hydraulic pressure and velocity conditions. The static leakage principle of MR seals for axial sealing was presented based on Persson’s contact mechanics, and a circular gap leakage model was employed to describe the leakage during reciprocating motions. The static and dynamic leakage experiments of metal rubber seals for axial sealing were conducted, and the influence factors of leakage rates were analyzed.

Wear mechanisms on metal seal pairs surfaces in three-body abrasive environments: removal of asperity peaks

“…Seals can effectively prevent the invasion of pollutants into the equipment during geological resource extraction [1,2]. However, due to the complex working conditions such as vibration, high temperature and abrasive particles downhole, it is di cult to avoid particle intrusion into the sealing interface [3][4][5]. In particular, metal surfaces in seals are more severely worn [6,7], as shown in Fig.…”

A novel FE model for the sealing performance of aviation flare joints with multiscale factors of manufacturing and assembly

“…The interfacial contact status of metallic rough surfaces is of vital importance in many fields, such as sealing performance, heat transformation, and contact electric resistance. [1][2][3] The sealing performance of flared pipe joints is critical in the security and dependability of aircraft since they are a critical component widely applied to the aircraft hydraulic system pipeline. [4][5][6] An illustration of the aviation hydraulic flared pipeline joint is shown in Figure 1.…”