Device applied to stress etching experiment
A stress corrosion and experimental technology, which is applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, and the use of stable tension/pressure to test the strength of materials, etc., can solve problems such as inability to complete experiments as required, and achieve reliable measurement results. Low cost, less effect of temperature change
Inactive Publication Date: 2011-05-25
ZHEJIANG UNIV OF TECH
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When the test requires the temperature of the medium to be higher than room temperature, the evaporation of water in the aqueous solution will affect the change of the medium concentration. If you continue to use conventional containers, you will not be able to complete the test as required.
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[0013] The present invention will be further described below in conjunction with the accompanying drawings.
[0014] With reference to Fig. 1, a kind of device that is applied to stress corrosion experiment comprises the beaker 4 that is used to place the loading sample of stress corrosion experiment, and described device also comprises water bath 1, rubber stopper 2 and condensation tube 3 for sealing, described The beaker 4 is placed in the water bath 1, the opening of the beaker 1 is provided with a rubber stopper 2, the condensation pipe 3 passes through the rubber stopper 2 and extends into the beaker 4, and the water bath 1 is connected to an auxiliary automatic water adding system.
[0015] The auxiliary automatic water adding system includes a water tank 6 , a water pipe, a control valve 5 and a controller for controlling the water flow, and the water outlet of the water pipe is located in the water bath 1 . The condensing pipe 3 is provided with a water inlet, a water...
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The invention relates to a device which is applied in a stress corrosion test, including a beaker which is used for the placement of a loading test sample of the stress corrosion test, the device further includes a water bath, a rubber plug used for sealing and a condensation tube, wherein, the beaker is arranged in the water bath, an opening of the beaker is provided with the rubber plug, the condensation tube penetrates the rubber plug to extend in the beaker, and the water bath is connected with an auxiliary automatic water adding system. The invention provides the device of the stress corrosion test which can maintain the solution concentration, reduce the temperature change and be applied to the solution with the temperature which is between the room temperature and 100 DEG C with reliable measurement results.
Description
technical field [0001] The invention relates to a device used in stress corrosion experiments. Background technique [0002] The phenomenon that metal materials are subjected to tensile stress in a specific medium environment, and cracks and fractures occur after a certain period of time is called stress corrosion cracking. Because of its unpredictable low stress brittle fracture, it often leads to accidents and a large amount of material loss. For example, 41.6% of the corrosion failures in the equipment of petrochemical enterprises are stress corrosion, so it is very harmful. The problem of metal stress corrosion cracking It has always been a topic of great concern and research by relevant people at home and abroad. In order to obtain some stress corrosion data of materials, a series of laboratory studies have been carried out. For quantitative K ISCC and da / dt data can be obtained by referring to GB / T15970.6-1998 (Stress Corrosion Tests for Corrosion of Metals and Alloy...
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IPC IPC(8): G01N3/54G01N3/18G01N17/00
Inventor 张明锋邓凯陈学东高增梁
Owner ZHEJIANG UNIV OF TECH