25 results about "Oxidation test" patented technology

Embodiments of the present application relate to the field of nuclear reactor technology, and more specifically, to a device for fixing a temperature measuring element on the outside of a cladding and a device for performing a high-temperature oxidation test on the cladding. The device for fixing the temperature measuring element on the outside of the cladding comprises: a first support member having a measurement fixing portion formed therein, the temperature measuring element being disposed on the measurement fixing portion; the first support member being configured to expand under the action of a first external force and to return to its original shape when the first external force is removed, thereby clamping the outer surface of the cladding and fixing the temperature measuring element; a second support member being configured to contract under the action of a second external force to place the cladding into a quartz tube and to return to its original shape when the second external force is removed, thereby abutting against the inner surface of the quartz tube; and a connecting member for connecting the first support member and the second support member, and being configured to follow the changes of the first support member and the second support member under the action of the first external force or the second external force. The fixing device of the embodiment of the present application is relatively simple to operate and facilitates the stable fixing of the temperature measuring element to the cladding.

The invention provides a synthetic lubricating oil composition and application thereof, and belongs to the technical field of lubricating oil. The synthetic lubricating oil composition comprises base oil, a pour point depressant and a composite additive, the base oil comprises synthetic ester base oil; the synthetic ester base oil consists of low-viscosity synthetic ester and high-viscosity synthetic ester. The composition has ultrahigh viscosity index and low-temperature performance, is diesel engine lubricating oil with very excellent low-temperature performance, passes a graphite flake friction characteristic test and a THOT oxidation test required by TES 439 specifications, and can meet the lubrication requirements of an engine and a transmission system.

An electric vehicle test chamber device for electric vehicle fluid oxidation testing. The device is incorporated into a system that includes a shaft implement such as a pump as well as a variable electric input mechanism with capacity to impart a variety of different types of electrical fields to the fluid. The fields may be induced by direct current, alternating current or an electromagnetic current. The system includes an acquisition unit for collection of oxidation data as well as capacity to account for a variety of other parameters applied to the fluid in order to attained enhanced accuracy of oxidation data analysis.

The utility model relates to the technical field of rock and soil testing, in particular to a rock and soil oxidation testing box which comprises a testing box body, the testing box body is existing equipment for rock and soil oxidation testing, and the front side of the upper portion of the testing box body is provided with a test sample placing opening. The test box comprises a test box body, and further comprises a door plate, a mounting frame, a placing frame, a filter screen, a fixing frame, a guide rod and a vibration piece, the door plate is hinged to the placing opening of the test box body, the mounting frame is assembled in the test box body, the top of the mounting frame is a frame body provided with a placing groove, and the placing frame is loaded in the placing groove of the mounting frame in a sliding mode. According to the utility model, the mounting frame and the placing frame are additionally arranged in the test box body, and the placing frame is driven by the vibrating piece to carry out vibration screening in the mounting frame, so that soil mixed in rock can be effectively screened, rapid separation of the rock and the soil after test is realized, and compared with manual operation, the test box is more efficient and saves time.

This invention provides a semiconductor oxidation prevention testing method and apparatus. The semiconductor oxidation prevention testing method includes: arranging multiple units under test (DUTs) on the top surface of a test sample; depositing a first film layer on the top surface of the test sample, ensuring the first film layer completely covers the multiple DUTs on the test sample; squeezing out the air between the first film layer and the test sample; and inserting a test probe through the first film layer and contacting the DUTs for testing, until all DUTs on the test sample have been tested. This invention protects the test sample and the DUTs on it by depositing a film to form a first film layer on the test sample. Furthermore, squeezing out the air between the first film layer and the test sample prevents the test probe from discharging during testing and from reacting with oxygen to form an oxide film. It is suitable for inter-process storage, long-term storage, and long-distance transportation. It saves production costs and improves testing efficiency.

The application relates to an oxidation testing device which comprises an experimental bin, a surface treatment assembly, an oxidation processor and a heating assembly. The experimental bin is configured with a testing cavity; the surface treatment assembly is arranged in the testing cavity; the surface treatment assembly is used for performing surface etching treatment on a sample to be tested located in the testing cavity; the oxidation processor is arranged in the testing cavity, and the oxidation processor is used for performing oxidation treatment on the sample to be tested subjected to the surface etching treatment for a preset time length; and the heating assembly is arranged in the testing cavity, and the heating assembly comprises a heating table which is used for bearing the sample to be tested and heating the same. The device can finally obtain the time required for critical secondary oxidation of the solder to be tested by adjusting the oxidation time of the oxidation processor on the solder to be tested, and then effectively guide the design of the process beat in the soldering process of the solar cell according to the time required for the critical secondary oxidation.

The application relates to a forced oxidation test system, comprising: a forced oxidation subsystem, a first machine box, a second machine box and a connecting device; the inner cavities of adjacent forced oxidation subsystems are arranged in parallel; the forced oxidation subsystem comprises: forced oxidation parts, the inner cavities of adjacent forced oxidation parts are arranged in series; the packaging to be tested is placed on the first machine box; the second machine box is connected with the first machine box through the connecting device; the forced oxidation subsystem is installed on the second machine box, and the forced oxidation part is arranged opposite to the packaging to be tested; the second machine box is configured to act along the axis of the connecting device to the direction close to the packaging to be tested, and is sealedly installed into the inner cavity of the forced oxidation part on the packaging to be tested, so that the displacement gas in the inner cavity of the forced oxidation part penetrates into the packaging to be tested. The forced oxidation subsystems of the application can provide stable packaging to be tested with different oxygen permeation degrees for shelf life simulation test.

The invention discloses an integrated circuit chip high-temperature anti-oxidation testing device, and relates to the technical field of sorting equipment, the integrated circuit chip high-temperature anti-oxidation testing device comprises a machine body, and the machine body is sequentially provided with a feeding device, a heating device, a caching device, a heat preservation device, a testing device and a cooling device in a connected mode along a chip transmission path; the flow channels are arranged on the heating device, the caching device, the heat preservation device and the testing device respectively, and flow channel grooves for placing chips are formed in the flow channels; an inflation cavity communicated with the flow channel groove is formed between the inner wall of the separation cover and the flow channel, and the two opposite sides of the separation cover are respectively provided with a communication port for the chip to enter and output; a plurality of air injection holes located in the side, away from the groove opening, of the flow channel groove are formed in the flow channel, a conveying groove communicating with the air injection holes is formed in the flow channel, and an air inlet hole communicating with the conveying groove and allowing inert gas to enter is formed in the side, back to the flow channel groove, of the flow channel. According to the invention, the possibility of oxidation of the integrated circuit chip in the test process can be prevented.

This evaluation device comprises: an acquisition unit that acquires an observed value of an observable parameter that has a correlation with the rotating pressure vessel oxidation test (RPVOT) residual ratio and that represents the properties of a lubricating oil; a calculation unit that calculates an estimated value of the RPVOT residual ratio corresponding to the observed value on the basis of the correlation; and an output unit that outputs an evaluation result pertaining to the degree of deterioration of the lubricating oil on the basis of the estimated value.

The application relates to the technical field of aviation testing devices, and discloses an integrated performance testing and evaluating system for aviation lubricating oil, which comprises a testing subsystem; the testing subsystem comprises a No. I testing area for testing the oxidation corrosion stability of aviation lubricating oil, a No. II testing area for testing the thermal oxidation stability of aviation lubricating oil and a No. III testing area for testing the effective service life of aviation lubricating oil, which are integrally arranged; a constant-temperature solid bath and a pipeline interface arranged around the constant-temperature solid bath are arranged in the testing areas; the constant-temperature solid bath is used for containing and constant-temperature heating of a test pool; the pipeline interface is connected with the test pool; the pipeline interface is used for inputting liquid medium or gas medium required by the test into the test pool; the test pool matched with the No. I testing area and the No. II testing area is an oxidation test pool; and the test pool in the No. III testing area is a service life test pool. The application can effectively improve the testing efficiency and shorten the test period.

The invention discloses a granulator sintering mixture granularity optimization method, and relates to the technical field of granularity optimizing.According to the method, a granularity optimization system is adopted for working, and the system comprises an oxidation test module, a granularity optimization module and a simulation analysis module; the oxidation test module is used for carrying out sampling test on the oxidation reaction degree of each group of granular materials, and the granularity optimization module is used for reversely deducing the granularity arrangement strategy in the granulation stage according to the oxidation test result and optimizing the particle size distribution structure of the granular mixed raw materials. The simulation analysis module is used for simulating a hot air flowing mode of a current granularity arrangement strategy and analyzing a heat transfer effect, and the oxidation test module comprises a position calibration module, a sample collection device, a sample reaction device, an ion concentration calculation module and an oxidation degree analysis module. And the position calibration module is electrically connected with the oxidation degree analysis module. The device provided by the invention has the characteristic of adaptive adjustment.

The application discloses a kind of pressure control condition under the oxidation testing device of coal body around borehole, including test tank body, gas supply device is arranged at the bottom of test tank body, gas detection device is arranged at the top of test tank body, the porous supporting plate is fixedly connected at the bottom of test tank body, the porous top plate is fixedly connected at the top of test tank body, heat shrink tube is arranged between porous top plate and porous supporting plate, coal sample is arranged in heat shrink tube, pressure cavity is formed between the outer wall of heat shrink tube and the inner wall of test tank body, the sliding groove is arranged in porous top plate, the sliding block is slidably connected in sliding groove, the drill rod is rotatably connected to sliding block, the drill sleeve is fixedly connected to the lower end of drill rod, the pre-charged inflatable rubber membrane elastic pipe column is arranged outside drill rod, and the lancet is fixedly connected to sliding block. On the one hand, the pipe column is broken and shrinks, the internal pore of coal sample collapses, the effect of borehole surrounding coal body breaking under the action of simulated test pressure is simulated, and the test working condition is consistent with the actual situation. On the other hand, the application can simulate the actual coal oxidation process under different gas environments.

The application provides a kind of coal mine heading machine with high performance wear-resistant hydraulic oil industrial performance test method and system, it is related to hydraulic oil performance test technical field, the method includes: in viscosity test period, obtain viscosity test data;According to viscosity test data, determine viscosity performance score;Obtain first antioxidant experimental sample and second antioxidant experimental sample;In first oxidation test period, obtain the first oxidation test data of first antioxidant experimental sample;In second oxidation test period, obtain the second oxidation test data of second antioxidant experimental sample;According to first oxidation test data and second oxidation test data, determine antioxidant performance score;In application test period, obtain application test data;According to application test data, determine actual performance score;Generate test report.According to the application, the comprehensiveness and accuracy of the coal mine heading machine with high performance wear-resistant hydraulic oil industrial performance test can be improved.

The application relates to a high-oxidation-resistance high-entropy metal diboride composite phase material, and belongs to the technical field of ultrahigh-temperature ceramic materials. The high-oxidation-resistance high-entropy metal diboride composite phase material has a chemical formula of (Hf 0.2 Zr 0.2 Ta 0.2 Nb 0.2 Tm 0.2 )B2 / TmB4. The (Hf 0.2 Zr 0.2 Ta 0.2 Nb 0.2 Tm 0.2 )B2 / TmB4 powder and block prepared by the application contain (Hf 0.2 Zr 0.2 Ta 0.2 Nb 0.2 Tm 0.2 )B2 and TmB4 two phase structures. The obtained material is subjected to static oxidation test, the oxides generated by Tm and other metal elements form a continuous oxidation layer, fill the gaps, and a high-density oxidation layer is obtained, which can effectively prevent oxygen from entering and reduce the oxidation rate. Therefore, the high-entropy metal diboride composite phase material prepared by the application has excellent oxidation resistance.

The invention relates to the technical field of fraction fuel oil detection and analysis, in particular to a fraction fuel oil oxidation stability measuring device which comprises a cabinet body and a plurality of sample tubes, a bath heating cavity is formed in the cabinet body, a plurality of insertion holes communicated with the bath heating cavity are formed in the cabinet body, and the sample tubes can penetrate through the insertion holes in a matched mode to be inserted into the bath heating cavity. An annular flexible connecting body is fixed on the inner wall of each bath heating cavity, an annular air bag is fixed on the inner edge wall of each flexible connecting body, and a clamping part for clamping the annular air bag when the annular air bag is inflated and expanded is arranged on the outer wall of the sample tube. Through linkage cooperation of the driving mechanism, the shaking assisting mechanism and the pushing linkage mechanism, the supporting plate is driven to conduct composite offset in the horizontal direction and the vertical direction, the sample pipe can be driven to synchronously conduct multi-dimensional shaking, the jolting and shaking working conditions of fuel oil in the actual transportation process are simulated, and the test efficiency is improved. Therefore, the environmental condition of the accelerated oxidation test is closer to a real scene, the evaluation deviation is reduced, and the prediction value of the measurement result on the actual storage and transportation stability is improved.

This invention discloses an anti-oxidation testing device and method. The anti-oxidation testing device includes a base and a test stand. The base holds a workpiece under test, which has multiple test rows arranged along a second direction. Each test row has multiple test units arranged along a first direction. The test stand is equipped with a probe and a nozzle. The probe contacts the test unit, and the nozzle sprays a protective liquid. The nozzle and probe move synchronously with the test stand. The test stand can move relative to the base along the first direction to switch the test units corresponding to the probe and nozzle. The test stand can also move relative to the base along the second direction to switch the test rows corresponding to the probe and nozzle. The nozzle is positioned upstream of the probe so that each test unit moves to the probe after passing through the nozzle for testing. This device allows for timely testing of individual test units after spraying, reducing the probability of oxidation due to evaporation of the protective liquid.

The invention discloses a synthetic ester antioxidant performance evaluation method based on model free dynamics and apparent activation energy, and belongs to the technical field of antioxidant performance analysis. According to the method, a model free dynamics method is utilized, and the apparent activation energy is calculated, so that rapid screening and performance prediction of the lubricating oil antioxidant system are realized. The antioxidant evaluation method can quickly, accurately and quantitatively evaluate the efficiency and synergistic effect of the synthetic ester antioxidant, has good consistency compared with the traditional long-term oxidation test result, and can greatly shorten the research and development period and reduce the research and development cost. The method disclosed by the invention can be widely applied to the fields of lubricating oil, lubricating grease, hydraulic oil, conduction oil and the like which take synthetic ester as base oil, and is used for developing novel antioxidants, comparing the performance of the existing antioxidants and optimizing a compound formula; the method has important significance in promoting the development of high-end synthetic lubricating materials and in the technical field of performance analysis of lubricating oil antioxidants.

The invention relates to the technical field of high-temperature oxidation testing, and relates to a design and use method of a novel high-temperature stress loading device, the loading device comprises a temperature control system, a stress loading system and a testing system, the temperature control system comprises a furnace body and a temperature monitoring device, and the furnace body can provide a preset temperature environment; the stress loading system comprises a weight loading mechanism and a test piece connecting mechanism, the test piece connecting mechanism comprises a plurality of test pieces, and the weight loading mechanism applies a preset stress load to the test pieces in the furnace body; the temperature monitoring device can monitor the real-time temperature in the furnace body and adjust the temperature in the furnace body when the real-time temperature exceeds the preset temperature. The test system can test the thickness of the oxide layer on the surface of the test piece and draw a change curve of the oxide layer thickness and the test time. According to the method, the oxidation behavior data under the coupling action of the high temperature and the stress can be obtained, and accurate data support is provided for predicting the service life of the turbine blade, optimizing the alloy component design and improving the surface protection process.

The invention discloses a coal mill dynamic and static ring compensation control method. In the aspect of dynamic and static ring sealing performance, high stone content in coal in the Xinjiang region seriously impacts and abrades dynamic and static rings of a coal mill, the abrasion rate of a grinding roller is increased, and a dynamic and static ring sealing gap is continuously increased. The method comprises the following steps that a gap self-adaptive compensation mechanism is designed on a sealing structure, automatic adjustment of a sealing gap after a grinding roller is abraded is achieved through combination of a spring set and a floating sealing ring, and the situation that the air leakage rate synchronously rises along with abrasion of the grinding roller is avoided; comparing and screening a multi-element alloy wear-resistant material containing Cr, Mo and V on the material of a sealing surface, performing forging and heat treatment, processing into a dynamic and static ring sealing element, and performing a wear test on site; and screening three types of candidate materials, and carrying out high-temperature oxidability test, hardness test and wear test to obtain performance data of each material under the actual working condition of the coal mill. The method is used for coal mill dynamic and static ring compensation control.

The invention relates to the technical field of micro-arc oxidation, in particular to a micro-arc oxidation test device with a liquid medicine cooling system, comprising a mounting seat, a test mechanism mounted on the mounting seat, a cooling mechanism mounted on the test mechanism, and a discharging mechanism mounted on the test mechanism; through installation of the test mechanism, micro-arc oxidation test on parts is facilitated, after equipment installation, the size is small, operation is convenient, liquid medicine replacement and cleaning are convenient, the test efficiency and quality are improved, through installation of the cooling mechanism, liquid medicine in the test mechanism is cooled, and through cooperation of the discharging mechanism and the limiting mechanism, the test efficiency is improved. The parts needing to be tested are placed and stably placed into the testing mechanism for testing, operation is safer and more convenient, the discharging mechanism can rotate by a certain angle through the rotating mechanism and the adjusting mechanism, operation smoothness during feeding and discharging is facilitated, and meanwhile, parts of different sizes can be conveniently placed.

The embodiments of the present application relate to the field of nuclear reactor testing, and specifically to a device for fixing a cladding to a quartz tube and a device for performing a high-temperature oxidation test on the cladding. The device for fixing the cladding to the quartz tube includes a first fixing member, a clamping member, and a second fixing member. The first fixing member and the second fixing member are both configured to be connected to the clamping member, and are configured so that when an external force acts on the clamping member, the first fixing member and the second fixing member both contract, and when the external force is removed from the clamping member, the first fixing member and the second fixing member both return to their original shapes; wherein, when the first fixing member returns to its original shape, it abuts against the inner wall of the cladding, and when the second fixing member returns to its original shape, it abuts against the inner wall of the quartz tube. The embodiments of the present application also provide a device for performing a high-temperature oxidation test on the cladding. The device for fixing the cladding to the quartz tube provided in the embodiments of the present application can simplify the fixing operation, facilitate remote operation of a manipulator, and improve the efficiency of the high-temperature oxidation test; and is conducive to achieving a stable fixation of the cladding.

To provide an evaluation device and an evaluation method capable of appropriately assessing degradation degree of lubricating oil.SOLUTION: An evaluation device includes: an acquisition part which acquires an observed value of an observable parameter correlating with a RPVOT (Rotating Pressure Vessel Oxidation Test) residual ratio and representing property of lubricating oil; a calculation part which calculates an estimated value of the RPVOT residual ratio corresponding to the observed value according to the correlation; and an output part which outputs an evaluation result concerning degradation degree of the lubricating oil according to the estimated value.SELECTED DRAWING: Figure 1

The application relates to a repairing method for surface damage of a SiC high-temperature oxidation-resistant coating of a C / C composite material. First, the damaged part of the SiC coating on the surface of the C / C composite material is pretreated, that is, the damaged part is polished along the damaged direction, the surface of the damaged part is treated to be more flat, and the damaged part is facilitated to be repaired, then the embedding infiltration method and the slurry brushing-oxidation method are selected to repair. The preparation method is simple, the process is stable, the repeatability is high, and the method is expected to be applied in large-scale engineering. After oxidation test is conducted on the repaired composite material, it is found that the mass loss of the repaired composite material is reduced by 74.36% compared with the damaged sample, and is reduced by 1% compared with the undamaged sample, which indicates that the method can effectively repair the damaged oxidation-resistant coating, can restore the oxidation protection performance of the damaged sample, and can even exceed the undamaged level, can improve the thermal protection performance of the damaged C / C composite material, can greatly reduce the use cost of the C / C composite material, can prolong the service life of the C / C composite material component, and conforms to the green energy-saving concept.

The present disclosure relates to a forced oxidation test system, including: forced oxidation subsystems, a first cabinet, a second cabinet, and connecting devices. Inner cavities of adjacent forced oxidation subsystems are arranged in parallel. The forced oxidation subsystems include: forced oxidation portions, inner cavities of adjacent forced oxidation portions being arranged in series. To-be-tested packages are placed on the first cabinet. The second cabinet is connected to the first cabinet through the connecting devices. The forced oxidation subsystems are arranged opposite to the to-be-tested packages. The second cabinet is configured to move along an axis of the connecting devices towards a direction adjacent to the to-be-tested packages until the inner cavities of the forced oxidation portions are sealed and mounted on the to-be-tested packages, such that a replacement gas in the inner cavities of the forced oxidation portions is permeated into the to-be-tested packages.

The present invention discloses a device for testing the oxidation resistance of a flow battery membrane, which relates to the technical field of flow battery membrane testing and solves the problem of being unable to simulate the actual operating state of the ion exchange membrane and accurately reflect the membrane's oxidation resistance during battery operation. + The present invention relates to a technical problem that the flow rate of the electrolyte in the test is not easy to adjust at any time and may affect the test results of the liquid flow battery membrane performance; including: a liquid flow battery pack, wherein an ion exchange membrane is embedded inside the liquid flow battery pack; the test results of the present invention are more obvious than the concentration change trend of the comparative example, avoiding the comparative example test method not taking into account the flow of the electrolyte in actual application conditions, and at the same time avoiding the influence of local concentration changes of the comparative example immersed in the electrolyte. The oxidation test method is convenient and fast. At the same time, the flow rate and flow velocity of the electrolyte can be adjusted during the test to reduce the factors affecting the ion exchange membrane performance test.