42results about How to "Improve performance and longevity" patented technology

The invention discloses a tester and a method for testing test environment controllable multi-directional fine motion fatigue. The tester comprises a vertical fine motion mechanism and a transverse fine motion mechanism, wherein the vertical fine motion mechanism consists of an electromagnetic excitation actuator, a force transducer I, an upper clamp for clamping a spherical upper test piece and the like; the transverse fine motion mechanism consists of a lower clamp for clamping a planar lower test piece, a force transducer II, a piezoelectric ceramic actuator, a longitudinal and transverse two-dimensional moving platform and the like; the vertical fine motion mechanism and the transverse fine motion mechanism are covered by a lower atmosphere cover and an upper atmosphere cover to form an atmosphere control space; and the periphery of the lower clamp is provided with a liquid medium groove higher than the planar test piece. Through the tester, a tightly matched friction pair can carry out multi-directional fine motion in a specific atmosphere and / or a liquid environment controlled artificially, thus the multi-directional fine motion frictional wear performance of a material under the specific environment condition is tested really and accurately, an accurate and reliable proof is provided for related design, use and maintenance of machinery and bioengineering, the properties of equipment and apparatuses are improved, and the service lives of the equipment and the apparatuses are prolonged.

A shaft for clamping in the bore of a releasable holder. On a transverse section plane, the circumference of the shaft is a series of arcs with different centers. These arcs intersect in sequence at their end points. Each intersection forms a slight ridge along the length of the shaft. Two of the ridges flank the point opposite the clamping element. These two ridges contact the bore, and they lie at the distance from the axis of the tool equal to the radius of the bore of the holder. Thus, they precisely locate the center of the shaft at the center of the bore. Two additional ridges on the shaft flank the clamping element. These additional ridges clear the holder bore just enough so that when the clamping element is released, the shaft can readily slide out of the bore and also can be easily re-inserted.

A heat spreader and method for thermal management of a computer memory module by promoting natural convection cooling of the memory module. The heat spreader includes a frame surrounding a planar body adapted to be mounted to a memory module of a computer, and a grid defined in the planar body by a plurality of uniformly distributed perforations. The perforations extend through the planar body to allow natural convention between an interior space beneath the planar body and an exterior space above the planar body.

A seal strip online velvet plastering method is characterized in that a seal strip online velvet plastering apparatus is installed at the outlet end of a seal strip production curing box, a velvet strip cylinder is installed on a bearing pedestal at the top of support of the seal strip online velvet plastering apparatus, the velvet strip on the velvet strip cylinder is wound on the four guide wheels of the guide wheel device of the online velvet plastering apparatus, a seal strip enters the guide groove on the guide plate on the guide part of the online velvet plastering apparatus through the guidance of the guide wheels, traverses through the guide groove and is pulled out from the outlet end of the curing box, and the seal strip and the velvet strip simultaneously traverse between the pinch roller on the pinch roller part of the online velvet plastering apparatus and the roller bearing on the pedestal part, and the velvet strip is applied onto the seal strip through rolling. The seal strip online velvet plastering apparatus comprises a rolling press device, the guide wheel device, a hot air device and a support, the rolling press device is installed on the workbench surface of the support, the hot air device is arranged behind the rolling press device, and the guide device is installed at the side edge of the workbench surface of the support and guides the velvet strip.

The embodiment of the invention provides a power supply device and a power supply system, and relates to the technical field of battery thermal management. The power supply device comprises a liquid-cooling plate, heat dissipation plates and a battery module, wherein the liquid-cooling plate comprises a passage, the passage is used for a liquid to pass through and penetrates through a first side surface and a second side surface, which are opposite to each other, of the liquid-cooling plate, the heat dissipation plates are arranged on a third side surface of the liquid-cooling plate at equal intervals, the battery module comprises a plurality of single batteries, each single battery is arranged among the heat dissipation plates arranged at equal intervals, and heat of the single batteries is dissipated by the heat dissipation plates and the liquid-cooling plate. The power supply device and the power supply system can be used for rapidly dissipating heat of the battery module, so that the battery module works in a relatively excellent charge-discharge state, the service lifetime of the battery is further prolonged, the performance of the battery is further improved, and electric energy output stability, safety and reliability of the battery are ensured.

An airfoil core die includes a tab for forming a continuous and smooth contour and extension of a first trailing edge slot recessed all to a bottom of the airfoil. The contour is formed on each airfoil core at injection and is maintained through to finish casting of the airfoil.

The invention provides a chemical modification method of bagasse for purification, which is used for filtering lubricating oil and takes the bagasse as a raw material. The chemical modification method comprises the following steps of: firstly dipping the bagasse in a sulfuric acid water solution of 0.01-1.0mol / L at the temperature of 20-80 DEG C for 1-10h, then placing the obtained bagasse into a mixed solution of tetrahydrofuran, dimethyl sulfoxide, urea, sodium silicate, alkali, ethanol and water according to the mass ratio of (0.1-1): (0.1-1): (0.1-5): (0.01-3): (0.25-15): (0.1-8): 15-200 for reaction, performing the reaction at the temperature of 20-80 DEG C for 1-100h, and washing and drying the bagasse after the reaction to obtain the bagasse with a high specific surface and a rich amorphous functional structure. The bagasse can be used for preparing various high-efficient filters, in particular to engine oil filters, and can greatly prolong the service life of engine oil and simultaneously reduce the emission of harmful substances in automobile tail gas.

The invention discloses an organic light-emitting device. The organic light-emitting device comprises a substrate, a conductive layer, a first electrode, a second electrode; at least one organic material layer, at least two insulating layers and an anti-short-circuit structure layer, wherein the conductive layer is located on one side of the substrate; the first electrode is composed of a plurality of pixels; an insulating covering edge is arranged between the pixels; the second electrode is arranged opposite to the first electrode; the at least one organic material layer is arranged between the first electrode and the second electrode; the at least two insulating layers are arranged between the conductive layer and the first electrode, and through holes are formed in the insulating layers; the anti-short-circuit structure layer is arranged between the insulating layers, and the anti-short-circuit structure layer comprises a plurality of circuit protection devices with the same electric conduction characteristics; and the circuit protection device penetrates through the through holes, and the pixels of the first electrode are electrically connected with the conductive layer. According to the technical scheme, the ultra-high anti-short-circuit resistance is achieved, the aperture ratio of the light-emitting region of the organic light-emitting device is improved, and the servicelife and performance of the organic light-emitting device are integrally prolonged and improved.

The invention discloses a device and method of a DIR-SOFC with support of a heat pipe. An anode premixing cavity and an anode combustion cavity are arranged in the top and bottom ends of the fuel cellrespectively, the high-temperature heat pipe is arranged in the inner wall of the fuel cell, fuel enters the anode combustion cavity from the anode premixing cavity, the heating end of the high-temperature heat pipe is heated by combustion, a heat-conducting medium in the high-temperature heat pipe is evaporated, and is condensed and releases heat in the process from the heating end to a condensation end, and the fuel cell is started rapidly; rapid heat conduction is realized between an internal reforming reaction area and an electrochemical reaction area in the fuel cell via the high-temperature heat pipe, and the problems of non-uniform temperature distribution and thermal stress caused by different heat effects of the two areas in the DIR-SOFC can be solved effectively; more heat energy released by electrochemical reaction can be converted to chemical energy of a reforming product; and thus, the performance and life of the fuel cell are both improved.

The invention discloses a high-clean glass, which is made of the following raw materials in parts by weight: 40-50 parts of quartz sand, 10-20 parts of cosolvent, 5-10 parts of oxidizing agent, 15-20 parts of clarifying agent, and 5-20 parts of coloring agent 10 parts, 2-3 parts of fluorescent whitening agent, 5-8 parts of reinforcing agent, 2-5 parts of binder, 1-2 parts of suspending agent and 1-2 parts of coloring aid; quartz sand, co-solvent and clarifying agent The sum of the three addition ratios accounts for 55-70% of the total parts by weight, and the sum of the four addition ratios of the coloring agent, fluorescent whitening agent, reinforcing agent and binder accounts for 15-20% of the total parts by weight; The agent comprises 2-5 parts by weight of amino acid, 2-5 parts by weight of phenolic resin and 2-3 parts by weight of organic bentonite. The invention is not only non-toxic and harmless, but also has good cleanliness, and the glaze has high rigidity, stability and strength, and long practical life.

The invention relates to a device for testing the thermal stability of an aviation rolling bearing. The device includes a computer system, a working platform, and a drive system, a test system and a loading system which are arranged on the working platform. The test system includes a test case. A high-speed test spindle is arranged in the test case through a support bearing group. A tested bearing is arranged on the high-speed test spindle. Temperature sensors are respectively arranged in an inner ring position, in an outer ring position and in a rolling body position of the tested bearing. The output shaft of a high-speed electric spindle of the drive system is connected with the high-speed test spindle through a coupling. The loading system includes a radial loading mechanism and a bearing loading body. The temperature sensors are arranged on the inner ring, the outer ring and the rolling body of the tested bearing in order to acquire a more comprehensive distribution law of the temperature field of an aviation rolling bearing. The key influence mechnism and the restraining method for the thermal instability of aviation rolling bearings can be measured and acquired, in order to improve the performance and life of rolling bearings.

The invention discloses a hydrothermal method for preparing a SnSe2 / carbon nanotube composite lithium ion battery electrode material, comprising the steps of: weighing a certain amount of SnCl2 and SeO2; placing the SnCl2 and SeO2 in the liner of a hydrothermal reaction vessel; weighing and placing a carbon nanotube in the liner; adding deionized water to the liner, and sealing the liner in the reaction vessel after magnetic stirring; placing the reaction vessel in a drying oven for a hydrothermal reaction; after the reaction is completed, centrifugally washing a reaction product with deionized water and absolute ethyl alcohol a plurality times, and then drying the reaction product. The method is easy to operate and does not require complicated equipment. The synthesized nano-scale SnSe2 / CNTs composite material, as a negative electrode material, is used in a lithium ion battery system to be subjected to an electrochemical performance test. In an electrochemical test with a current density of 0.1C, the specific discharge capacities in the first three charge-discharge cycles are 803.7mAh g-1, 521.3mAh g-1, and 454.7mAh g-1 respectively, and the specific discharge capacity remains at210.3mAh g-1 after 100 cycles. In addition, the charge-discharge capacity can still maintain at 176.5mAh g-1 at a high current density of 0.5 C.

The invention relates to a device for cooling a guiding device group of a turbine. The device comprises a plurality of guide blade components, a first external edge plate mounting ring, a second external edge plate mounting ring and an internal edge plate mounting ring; an annular groove is formed at the side end of the first external edge plate mounting ring; and an annular groove is formed at periphery of the internal edge plate mounting ring. The device provided by the invention provides three cooling channels to cool the guiding device group in an omnibearing mode, so that the greater heat stress caused by uneven temperatures of the guide blade components is reduced, and the heat stress situations of the blade bodies and the connection parts among the blade bodies, the internal edge plate and the external edge plate are improved particularly; and the crack caused by heat impact and heat fatigue phenomena is eased, and thus, the performance of the guiding device group is improved and the service life of the guiding device group is prolonged.

The present invention comprises a weighted lariat that improves ropers' chances of catching animals at which the lariat is thrown, particularly in competitive roping events. Weight is added to the tip of the loop by covering a portion of the loop with shrink-wrap tubing. Additionally, elongated, malleable metal wires of variable length can be laid in the groove of between the strands of the lariat thereby adding still more weight.

The invention discloses a processing method of a composite copper alloy plunger pump cylinder body. The processing method is characterized in that a copper alloy bush (5) and a core rod (4) are arranged in a cylinder body hole; and meanwhile, another kind of copper alloy material is placed in a spherical concave surface (3) at the top center of a cylinder body blank (1), and a method of heating and cooling is utilized, so that different copper alloys can be compounded on two different working faces of the plunger pump cylinder body, and further the performance of a plunger pump is improved and the service life of the plunger pump is prolonged.

The invention belongs to the technical field of a protection circuit and particularly relates to an overheating protection circuit for a power distribution cabinet. Connection with an output end of a power supply and an input end of electronic equipment is respectively carried out, the overheating protection circuit for the power distribution cabinet comprises a temperature sampling detection circuit, a self-locking circuit, an actuating circuit and an alarm circuit. According to the overheating protection circuit for the power distribution cabinet, when temperature of the power distribution cabinet rises, target temperature is sampled through the temperature sampling detection circuit, if the sampled temperature is higher than preset temperature, a triggering signal is generated, the triggering signal is maintained through the self-locking circuit, the triggering signal is received through the actuating circuit, supply of the power supply for the electronic equipment is cut off, and the alarm circuit is used for prompting a user to know about being in a present fault state. Through the overheating protection circuit, performance and service life of the power distribution cabinet are improved, and loss of a user is reduced.

The invention provides a cleaning machine which comprises a high-pressure pump, a motor assembly, a control assembly and a shell, wherein the motor assembly comprises a motor for driving the high-pressure pump to operate, fan blades arranged on the motor and a fan housing for accommodating the motor; and the shell is internally provided with a first accommodating cavity for accommodating the motorassembly, the second accommodating cavity for accommodating the control assembly, and a partition plates for separating the first accommodating cavity and the second accommodating cavity. The shell is further provided with an air inlet part and an air outlet part; the air inlet part, the first accommodating cavity, the fan housing and the air outlet part form a first air duct; and the air inlet part, the second containing cavity and the air outlet part form a second air duct. Compared with the prior art, the cleaning machine provided by the invention has double heat dissipation air ducts which do not interfere with each other, so that the problem of mutual interference between the heat dissipation of a motor and the heat dissipation of a high-power controller is solved. The heat dissipation effect of the motor and the high-power controller is improved, the performance of the cleaning machine is improved, and the service life of the cleaning machine is prolonged.

The present invention relates to a battery module including an ultra-long battery cell. The battery module according to the present invention includes: ultra-long battery cells each having opposite ends to which a plurality of electrode tabs are connected; a battery stack formed by stacking the battery cells; end-side bus bar assemblies formed at opposite ends of the battery stack, respectively, and electrically connecting the electrode tabs of the battery cells; transverse bus bar assemblies each electrically connecting electrode tabs connected to opposite ends of an uppermost battery cell ora lowermost battery cell in the battery stack; and a case accommodating the battery stack, the end-side bus bar assemblies, and the transverse bus bar assemblies. With the battery module according tothe present invention, it is possible to suppress an increase in internal resistance of the ultra-long battery cell and heating, and to improve structural stability.

The invention discloses a TM mode dielectric filter, and the filter comprises a filter housing and a dielectric resonator disposed in the filtering housing. The filter housing comprises a bottom plate, a cover plate, and side walls connected with the bottom plate and the cover plate. The dielectric resonator is fixedly connected with the bottom plate in a contact manner. The filter is characterized in that the bottom plate is made of an alloy material, and the alloy material contains the following components by mass percentage: 20.0%-39.0% of Si, 0.1%-1.0% of Mg, 0.1%-2.0% of Fe, 0.1%-1.0% of Mn, 0%-1.0% of foreign matters, and a remaining part (Al). The bottom of the filter housing is made of the above alloy material, reduces the thermal expansion coefficient of the bottom plate, prolongs the service life of the filter, and improves the performance of the filter.

The invention relates to a muting device for an air purifier. The muting device comprises a casing and a sound baffle group, wherein a draught fan is mounted inside the casing; two sides of the draught fan are fixedly connected with supporting plates through damping support; ball bag air cushions separated through sound insulation plates are arranged between the two side walls of the casing and the supporting plates; air inlet passages with electromagnetic valves and air outlet passages with electromagnetic valves are arranged at the left ends and the right ends of the ball bag air cushions respectively; the electromagnetic valves are connected with controllers at the right end parts of the draught fan through conducting wires; an air inflating pump connected with the air outlet passages is mounted at the lower parts of the controllers. The muting device has the advantages that the ball bag air cushions in the casing can be automatically inflated and deflated according to the magnitude of noise and vibration, the noise and vibration of the draught fan can be greatly reduced, the performance of the complete machine can be improved, and the service life of the complete machine can be prolonged.