| 摘要 |
FIELD: physics, measurements. ^ SUBSTANCE: invention is related to technology for determination of temperature resistance of lubricant oils. In method for determination of lubricant oil temperature resistance, oil sample is taken, divided into equal portions, each of them is heated at atmospheric pressure without air access with condensation of vapors and condensate drain, besides for each subsequent part of oil sample, test temperature is increased by a permanent value, afterwards light flux absorption ratio Ka is determined, graphical dependences on temperature are built, and temperature resistance is detected, moreover, after testing sample is weighed, value of evaporated mass G is identified as difference of oil sample mass before and after test, evaporation ratio KG as ratio of evaporated oil sample to remained mass, coefficient of conversion energy Ec as sum of light flux absorption coefficients Ka and evaporation KG, then graphical dependences of energy conversion ratio Ec on test temperature are built, and temperature resistance of tested lubricant oil is determined by temperatures of destruction process beginning and completion. ^ EFFECT: improved accuracy of determination. ^ 1 tbl, 1 dwg |
