| 摘要 |
PURPOSE:To supply working oil in temperature environment to a sample body, or a product which operates under hydraulic pressure and to take a test by installing a cylinder which has a piston as a tank for the working oil, valve, etc., in a temperature chamber. CONSTITUTION:The product 1 and a working oil temperature environment application device 13 are installed in the temperature chamber 2. The valve 16 is turned off firstly and a hand valve 17 is opened; and the piston 15 in the cylinder 14 is moved to the left end and then the hand valve 17 is closed to connect high-pressure piping 11 and low-pressure piping 12 to the product 1, which is placed in low-temperature environment in this state. The valve 16 is turned on when the temperature in the temperature chamber 2 drops to necessary temperature to apply hydraulic pressure from the left side of the cylinder 14, and then the piston 15 is pressed to right to supply the working oil which is cooled sufficiently in the cylinder 14 to the product 1 through the valve 16 and high-pressure piping 11, taking the temperature environmental test. |
