论文部分内容阅读
一、液压介质的发展与变化液压传动是以液体作为工作介质进行能量的传递和转换的。由于矿物油具有一系列优点,自二十世纪初以来,矿物油一直是液压传动的主要工作介质,但矿物油作传动介质并不是没有问题的,油的燃点低,易燃烧就是一个严重缺点。特别是随着液压系统工作压力的不断提高,着火的危险更为严重。在高压情况下,从破裂油管喷出的液压油往往呈细雾状,只要遇到300～400℃的热表面,就会引起火
First, the development and changes in the hydraulic medium Hydraulic transmission is the use of liquid as a working medium for energy transfer and conversion. Since mineral oil has a series of advantages, mineral oil has been the main working medium for hydraulic transmission since the early twentieth century. However, it is not without problems that mineral oil is used as a transmission medium. Low ignition and easy ignition of oil are a serious drawback. Especially with the increasing pressure on the work of the hydraulic system, the risk of fire is even more serious. In the case of high pressure, the hydraulic oil sprayed from the ruptured tubing tends to show a fine mist, as long as it encounters hot surface of 300 ~ 400 ℃, it will cause fire