The sealing reliability of collet connectors is essential within underwater production systems. This paper based on the lens gasket mechanism and Hertzian contact theory, establishing mechanical models for core components in preloaded working states analyzing minimum required axial preload force sealing. According to principles connector, characteristics each element are analyzed both states. i...

Maintaining a high level of gasket performance with current non-asbestos materials can be difficult. The replacement of previous asbestos containing sheet gaskets with other types of fiber reinforced sheet gaskets required a thorough evaluation using a simulated service testing procedure. In this paper we will discuss the details of the fabrication of a test fixture which simulates the temperat...

Abstract This work expounds a case of insulation abnormality 220kV wall bushing end shield caused by the failure rubber seal gasket. The mechanism and causes were put forward combined with method on-site inspection, XRF analysis, infrared spectroscopy (IR) analysis thermogravimetric analysis. And suggestions for improvement sealing performance to prevent this kind defect management operation ma...

Rubber gaskets are commonly adopted as the waterproof component in shield tunnels for their outstanding sealing performance. The contact pressure between surfaces generated by assembly stress ensures that resist certain water without leaking. However, with continuous occurrence of leakage accidents, attention has been drawn to topic performance gasketed joint tunnels. In this article, prominent...

In this paper, a study of the power and impulse frequency influences on the microfabrication fluidic structures by infra-red laser ablation in low-temperature co-fired ceramics (LTCC) substrates is presented.LTCC technology , which has been commonly used for electronic applications, is presented as a useful alternative to construct continuous flow analytical microsystems. A μ-FFE device, with e...

The swelling capacity of novel hydrophilic gaskets used in geomembrane cutoff walls and infrastructures is critical for decreasing the flow rates contaminated groundwater. This study investigated behavior, relaxation characteristics, rates, micro-morphology a gasket with different testing liquids. radial tests were performed using device modified from single-lever consolidation instrument. A mo...