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Fakulteta za strojništvo, Ljubljana (FSLJ)
  • Research of carbon fibre hydraulic cylinder [Elektronski vir]
    Majdič, Franc
    Paper presents the information about possibility of using tap water without any additives as a hydraulic liquid instead of the nowadays widely used mineral hydraulic oil. Hereinafter we present the ... most important basic properties of tap water, its impact on the environment, the current use of water hydraulics and state of the art. After that follows a presentation and a description of the carbon fibre water hydraulic cylinder, test rigs, procedures of the tests, main parameters of the tests and results of hydraulic and tribological investigations. The carbon fibre tube was able to withstand a burst test up to a pressure of 62 MPa. Composite hydraulic cylinder was after 100 km of total stroke of rod under load in oil without damage. In water only 42 km of total rod stroke was done, because a major damage of the sliding surface and consequently a damage of piston seal occurred. Results of basic tribological tests with five different seals type and three different sliding surface is presented on the end. The lowest coefficient of friction (0,12) was observed with Polytetrafluoroethylene with bronze in contact with clear epoxy gel without nanoparticles.
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2017
    Jezik - angleški
    COBISS.SI-ID - 15804955