32results about How to "Check reliability" patented technology

The invention relates to a start-stop shock test bench for a turbocharger, which belongs to the technical field of power machinery. Including two circuits, the first circuit and the second circuit are identical, including a turbocharger and connecting pipes, and share the air ejector, combustion chamber and high temperature conversion valve. The invention also discloses a test method for the start-stop shock of the turbocharger, which provides a basis for the reliability of the start-stop shock of the turbocharger. The test bench scheme of the invention is scientific and reasonable, easy to realize, stable and reliable, and has important application value for improving the reliability of the turbocharger.

The invention relates to preparation method and application of pressure-sensitive temporary bonding glue and belongs to the technical field of microelectronic packaging. A slide glass wafer and a device wafer are bonded in a temporary mode by adopting the pressure-sensitive temporary bonding glue, and microcapsules are broken by utilizing temporary bonding pressure, so that color of the peripheral space changes. If a certain area is hollow, the microcapsules in the area are not broken, the color of the peripheral space does not change, and the aim of directly observing the temporary bonding quality after bonding removal is achieved. According to the method, a low-cost temporary bonding process can be greatly realized, and the reliability of the temporary bonding process is rapidly checked.

The invention provides a digestive tract system simulation device, which includes a simulated oral cavity, a simulated esophagus, a simulated stomach, a simulated small intestine, a simulated large intestine, and a simulated anus and switches thereof; There are acid storage chambers, buffer storage chambers, digestive enzyme storage chambers, lye storage chambers and their flow controllers, as well as sensors for pH, pressure and enzymes; the central control unit is used to set the overall parameters of the simulated digestive tract , receive the detection results fed back by the sensor, adjust the flow controller, analog switch, electric control driver action range and action duration, etc., and save various parameters in the data storage unit, and output through the data output interface. The invention can simulate the peristaltic action of the digestive tract, and can achieve the purpose of controlling the running time of the simulated digestive tract through the control of the action range and action time. It has the advantages of simple system structure, long working time, many simulation parameters and comprehensive functions.

The invention provides an arrow-loaded electric field stretching rod ground unfolding experimental device. The arrow-loaded electric field stretching rod ground unfolding experimental device comprises a rotating platform and a clamping releasing mechanism and is characterized by further comprising a microgravity simulation mechanism. The microgravity simulation mechanism further comprises a central pillar, steel wire ropes, a nylon rope and clamping hoops which are fixed on each section of an electric field stretching rod, wherein one end of each steel wire rope is pulled in a slant mode to be fixed on the central pillar, and the other end of each steel wire rope is connected with the clamping hoop of each section of the electric field stretching rod. One end of the nylon rope is connected with the clamping releasing mechanism, and the other end of the nylon rope is fixed on a pressing plate on the top of the electric field stretching rod. The central pillar comprises a plurality of sections of hollow cylinders, wherein flanges are arranged at two ends of each hollow cylinder. Every two sections of the cylinders are fixedly connected through a bolt, and each flange of each section of the cylinder is provided with a cylinder hole used for connecting one steel wire rope. One end of each steel wire rope is pulled in the slant mode to be fixed on the central pillar, and the other end of each steel wire rope is connected with the clamping hoop of each section of the stretching rod of the electric field stretching rod.

The invention relates to a device for a start and stop impact test of turbochargers, and belongs to the technical field of power machinery. The device comprises a first loop, a second loop and an intermediate connecting valve 17, and the turbochargers and combustion chambers in the two loops are completely same. The invention further discloses a testing method for start and stop impact of the turbochargers, and a basis is supplied to the reliability of turbine start and stop impact. The device for the start and stop impact test of the turbochargers is scientific and reasonable in test table scheme, easy to achieve, stable and reliable and has the important application value for improving the reliability of the turbochargers.

The invention belongs to the field of the wind resistance of an engineering structure, and particularly relates to a wind-induced internal pressure testing method oriented to a punched flexible building. The invention provides the wind-induced internal pressure testing method oriented to the punched flexible building. A building model is subjected to internal volume correction, a regulation deviceis reasonably selected, so that the problem of experiment test errors brought by the reduced scale effect of the punched flexible building model is solved, an internal pressure resonance frequency test deviation caused by model reduced scale is reduced, the test distortion of internal pressure response is lowered, the reliability of a model experiment result is improved, the pulse response of aninternal wind load after the flexible building is punched can be accurately measured, and a dereferencing basis is provided for engineering wind-resistant design.

The invention provides an experimental device for ground expansion of a rocket-borne electronic extensible rod. The device is used for simulating control of expansion of the electronic extensible rod in the separation of a hood of a sounding rocket on the ground. The device comprises a base with a sliding way, an extension spring, a screw, an electromagnet, a circular ring, a cylindrical pin and electrical pure iron, wherein the base is fixed on a rotary platform; a screw hole seat and a pin hole seat are arranged at left and right ends of the base in opposite direction; the lower part of the screw hole seat is fixed with one end of the extension spring; a threaded hole for mounting the screw is formed on the upper part of the screw hole seat; the electromagnet is embedded into the lower part of the pin hole seat; the upper part of the pin hole seat is a limiting part; a pair of small holes is formed on the limiting part correspondingly; the circular ring is placed between the pair of small holes and fixed by inserting the cylindrical pin; the electrical pure iron is shaped like a Chinese character 'Tu'; a circular hole through which the cylindrical pin penetrates is processed on the upper half part of the electrical pure iron; the lower half part of the electrical pure iron is used for fixing the other end of the extension spring; and the bottom of the electrical pure iron is nested in the sliding way on the base.

The invention relates to a deep thermal shock testing device of a heavy-duty engine. The deep thermal shock testing device comprises the engine, and is characterized in that a water outlet of the engine is connected with a third port of a second switching valve, a second port of the second switching valve is connected with a hot water tank, a first port of the second switching valve is connected with a cold water tank and a cold expansion water tank, and the cold expansion water tank is connected with a thermal expansion water tank which is connected with the second port of the second switching valve; a water inlet of the engine is connected with a third port of a first switching valve, a second port of the first switching valve is connected with a hot water tank, a first port of the first switching valve is connected with a third port of a three-way proportional valve, a first port of the three-way proportional valve is connected with the cold water tank, and a second port of the three-way proportional valve is connected with the first port of the second switching valve; the hot water tank is connected with a hot water heat exchanger and a steam heat exchanger, and the cold water tank is connected with a refrigerating unit. The deep thermal shock testing device can improve the number of alternations of unit time, and verify reliability of the engine within a short time.