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110results about How to "Effective loss" patented technology

Cracking-resistant multifunctional impregnated bond paper decorative face artificial board and manufacturing method thereof

The invention provides a cracking-resistant multifunctional impregnated bond paper decorative face artificial board and a manufacturing method thereof. The artificial board at least comprises a base material and an impregnated bond paper layer. At least one layer of carbon fiber material layer is arranged between the base material and the impregnated bond paper layer. The upper structure and the lower structure of the base material are arranged symmetrically. According to the cracking-resistant multifunctional impregnated bond paper decorative face artificial board and the manufacturing method thereof, carbon fiber materials are adopted for enhancing tensile strength of solidified impregnated bond paper and the overall structure stability of the decorative face board, the problem that board face cracking is liable to appear during usage is solved, the surface bonding strength, bending resistant strength, impact resistance and other mechanical properties are enhanced, and the decorative face quality is improved by the carbon fiber material layer with the flat surface and a certain buffer function and a wood buffer layer cooperatively. Especially a conducting layer is formed under the impregnated bond paper, and meanwhile, good electrostatic resistance and reflection loss electromagnetic radiation performance are achieved. According to the manufacturing method, the manufacturing efficiency is improved while the decorative face performance is improved effectively, and industrialization production is convenient.
Owner:GUANGXI UNIV

Film bulk acoustic resonator structure based on all metal Bragg reflection layer

InactiveCN102571027AExcellent cooling capacityLess heat sinkEnergy efficient ICTImpedence networksExpansion factorHeat sink
The invention discloses a film bulk acoustic resonator (FBAR) structure based on an all metal Bragg reflection layer. The FBAR structure comprises a connecting antenna, an FBAR array duplexer or multiplexer, a low noise amplifier, an inhibition emitting signal filter, a receiving end attenuator, an emitting end attenuator and a power amplifier. The all metal Bragg reflection layer with excellent heat radiation capability is adopted, and the device heat sink is reduced, so the piezoelectric vibration heat energy can be effectively radiated from the all metal Bragg reflection layer and a substrate, the power capacitance of the FBAR filter is exponentially improved through the FBAR group structure in parallel connection, the same piezoelectric layer and the Bragg reflection layer are shared, the occurrence of device cracking condition caused by different heat impact and heat expansion factors is effectively reduced, finally, the power capacity of the filter based on the FBAR counting is integrally improved, and the characteristic of miniaturization of the FBAR filter is maintained. A whole wireless communication base station realizes the miniaturization.
Owner:ZHEJIANG RUINENG COMM TECH

Magnetic driven metering pump

The invention provides a magnetic driving metering pump. A movable pushing part which is fixed on a connecting rod can axially move on a longitudinal shaft in a magnetic cover plate which is fixedly anchored in a pump shell; therefore, after a magnetized coil is driven (started) by getting electricity, the pushing part and the connecting rod overcome the force of a recovery spring and are then pulled into the magnetic cover plate and enter one hole in the magnetic cover plate by reducing the clearance; the pushing part returns to an original position by the recovery spring after the magnet is stopped; therefore, under the continuous starting and stopping of the magnetized coil, the pushing part and an elastic displacement part are driven to carry out vibration; wherein, a diaphragm is alternatively matched with an outlet valve and an inlet valve; a pumping stroke (pressure stroke) and an injection stroke are generated in a metering head which is arranged along the direction of the longitudinal axis. In the magnetic driving metering pump, a benchmark part is connected with a module which consists of the pushing part and the connecting rod; the position of the benchmark part is detected by a position sensor; wherein, the position sensor provides a practical signal which has a fixed relation with the position of the benchmark part; furthermore, the motion precision of the unit which consists of the pushing part and the connecting rod is controlled by a control circuit so as to meet a prearranged nominal drawing.
Owner:PROMINENT

Attapulgite-clay-based electromagnetic wave absorber in metal-surface-coated electromagnetic wave-absorbing coating and preparation method of attapulgite-clay-based electromagnetic wave absorber

The invention discloses an attapulgite-clay-based electromagnetic wave absorber in a metal-surface-coated electromagnetic wave-absorbing coating. The electromagnetic wave absorber refers to the attapulgite-clay-based electromagnetic wave absorber which is prepared by combining carbon nano-tubes with high-temperature-resistant attapulgite clay powder. Particularly, a preparation method of the attapulgite-clay-based electromagnetic wave absorber includes the steps of activating and dispersing common attapulgite clay to obtain attapulgite clay suspension excellent in activation performance, adding a specific number of carbon nano-tubes, using activity of the surface of the attapulgite clay to absorb the carbon nano-tubes to obtain one-dimensional nano-tube/attapulgite clay compound powder, plating metal ions on the surface of the compound powder through chemical plating, centrifuging and drying so as to obtain the attapulgite-clay-based electromagnetic wave absorber. The attapulgite-clay-based electromagnetic wave absorber is excellent in electromagnetic wave absorption performance, high in absorption performance and wide in spectrum band and is capable of absorbing 90% of electromagnetic waves within a range of 5-18 GHz, and the maximum reflection loss can be up to -44 dB (5 GHz).
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Method for preparing complete orientation soft magnetic composite material

InactiveCN106373693AFully oriented structureTypical Anisotropic Magnetic PropertiesInorganic material magnetismEpoxyMetal particle
The invention relates to a method for preparing a complete orientation soft magnetic composite material. According to the method, flattened metal magnetic powder with an average thickness of 0.5-5 [mu]m is taken as a raw material; the flattened metal magnetic powder is fully evenly mixed with epoxy resin, and the mixture is injected into an annular die after a curing agent is added; the die is placed in a magnetic field to be orientated; according to orientation mode differences, there can be three forms: (1) a magnetic ring is horizontally placed and there is no magnetic field orientation; (2) the magnetic ring is horizontally placed, the normal is perpendicular to the magnetic field direction, and the magnetic ring rotates with the normal as the axis; (3) the magnetic ring is vertically placed, the normal is parallel to the magnetic field direction, and the magnetic ring rotates with the diameter as the axis; and a sample undergoes orientation and curing in the magnetic field and then is taken out. According to the method, in the soft magnetic composite material forming process, the magnetic field is applied, the magnetic ring rotates, flattened metal particles form complete orientation in the external magnetic field direction and present a complete orientation structure; the complete orientation structure of flattened magnetic powder in the magnetic ring generates typical anisotropic magnetic performance, the effective magnetic permeability is improved, and the loss is reduced.
Owner:彭晓领

Vehicle-mounted box for refrigerated transportation of vegetables

The invention relates to the field of vegetable fresh-keeping transportation, and discloses a vehicle-mounted box for refrigerated transportation of vegetables. The vehicle-mounted box comprises an outer box body, a fresh-keeping box is arranged in the middle of the outer box body, the side surface of the fresh-keeping box is not in contact with the side surface of the outer box body, a supportingbaffle plate fixedly sleeved with the interior of the outer box body is arranged at the bottom of the fresh-keeping box, and the bottom of the fresh-keeping box is not in contact with the bottom of the outer box body. According to the vehicle-mounted box for refrigerated transportation of the vegetables, through the structural design that the fresh-keeping box is arranged in the outer box body and matched with a flow guide chamber and a heat exchange chamber between the fresh-keeping box and the outer box body, in the transportation process, ice blocks are placed in the heat exchange chamber,so that the fresh-keeping box is refrigerated and subjected to heat preservation, a ventilation pipe and an exhaust pipeline extend out of a vehicle to facilitate real-time ventilation in the fresh-keeping box, and the problems that vegetables in the fresh-keeping box breathe, the content of carbon dioxide in the fresh-keeping box is increased, the temperature in the fresh-keeping box is increased, and the fresh-keeping effect on leaf vegetables is poor are effectively solved.
Owner:文辉

Waterwheel type fishway

The invention discloses a waterwheel type fishway. The waterwheel type fishway is characterized in that two fish inlet open channels are arranged at the downstream part of a dam; the fish inlet open channels are connected with fish inlet gates arranged at an outlet of a downstream river channel; two fish outlet open channels are arranged at the top of the dam; the fish outlet open channels are connected with fish outlet gates; two rails are parallelly arranged on an external slope of the dam; the upper ends of the rails are connected with the fish outlet open channels; the lower ends of the rails are connected with the fish inlet open channels; brackets and pulleys are arranged on the dam; a waterwheel is arranged on each of the rails; the two waterwheels are connected through a cable; the waterwheels respectively perform climbing and descending motion through the cable and the pulleys on the brackets; and when the waterwheel on one rail reaches the top of the dam and is tightly connected with the downstream ends of the fish outlet open channels, the waterwheel on the other rail descends and reaches the upstream ends of the fish inlet open channels. According to the waterwheel type fishway, the construction and maintenance cost is remarkably reduced, the engineering construction land is decreased, and besides, the consumption of water resource and electric energy is remarkably reduced.
Owner:SHANGHAI JIAO TONG UNIV

Heat dissipation device and electronic equipment

The invention discloses a heat dissipation device used for electronic equipment. The heat dissipation device comprises a first heat sink, a second heat sink and a heat transfer connection piece, wherein the first heat sink is used for being in closely contact with a heat generation component of the electronic equipment, the second heat sink is used for being arranged with the heat generation component in a staggered way, and the heat transfer connection piece is arranged between the first heat sink and the second heat sink and is connected with the first heat sink and the second heat sink. In the heat dissipation device, the first heat sink can be used for directly dissipating heat of the heat generation component, the heat can be also transferred to the second heat dissipation component far away from the heat generation component by the heat transfer connection piece and is dissipated, so that the heat of the heat generation component is fully and effectively dissipated, the frequency of the electronic equipment is prevented from being reduced, the performance of the electronic equipment can be fully developed, a local temperature of a position, corresponding to the heat generation component, on the electronic equipment is also prevented from being excessively high, and a user is convenient to wear the electronic equipment. The invention also provides the electronic equipment employing the heat dissipation device. The performance of the electronic equipment can be developed to the greatest extent, no problem of excessively high local temperature is generated, and the user is convenient to wear.
Owner:LENOVO (BEIJING) CO LTD

Solar steam cement curing device

The invention provides a solar steam cement curing device. The device comprises a vehicle body, a heating device, a circular device and a spraying device; the vehicle body comprises a chassis and steering wheels, a water storage tank supporting base is arranged on the upper end face of the chassis, the heating device comprises a supporting frame, a solar heat collector and a solar photovoltaic cell, the circular device comprises a first circular pipeline, a second circular pipeline and a water storage tank, an automatic exhaust valve is arranged between the upper end of the first circular pipeline and the solar heat collector, a direct-current circular pump, an expansion tank and a liquid injection valve are arranged on the second circular pipeline, and the spraying device comprises a telescopic rod, a nozzle and a steam conveying pipeline; and the upper end of the telescopic rod is connected with the nozzle, the lower end of the telescopic rod is connected with the chassis, a steam spraying switch is arranged between the lower end of the steam conveying pipeline and the water storage tank, a temperature pressure safety valve is arranged between the steam spraying switch and the water storage tank, and a temperature sensor is arranged at the upper end of the side wall of the water storage tank. The solar steam cement curing device is suitable for field operation, and is energy-saving, environment-friendly and low in energy consumption.
Owner:山东嘉宇项目管理有限公司
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