33results about How to "Gain strength" patented technology

The invention relates to a single component organic silicon packaging glue cured by ultraviolet for high-power LED and a preparation method thereof. The packaging glue is prepared by mixing a prepolymer component A containing acrylate polysiloxanes, a monomer component B containing acrylate polysiloxanes, a photosensitizer component C and a tackifier component D. The packaging glues obtained with different refractive indexes such as level 1.4, level 1.5 and the like are used for packaging multiple types of high-power LEDs or encapsulation of other optical purposes. By adopting ultraviolet curing, the invention enhances the packaging efficiency of the high-power LED product to a great extend without influencing the temperature tolerance, the discoloration and the light transmittance of the product.

The invention discloses a natural gas hydrate sediment triaxial test device, and belongs to the field of testing the mechanical properties of natural gas hydrate sediment. The device comprises a triaxial test device main machine, a temperature control system, a pore pressure control system, a confining pressure control system and a computer data acquisition and control system. The triaxial test device main machine, which is in a dual-pressure-chamber structure, can be used for accurately measuring volume change in the sediment in a natural gas hydrate decomposing process; a load sensor is arranged inside the pressure chamber and is capable of improving the precision of intensity data; a pre-cooling hollow cavity is formed inside a base to pre-cool pore gas and pore water which enter a sample, so as to relieve the decomposition of the natural gas hydrate in a saturated water process and to improve the precision of temperature control; in a sample installation process, a quick coupling is adopted for connection, so that the operation is convenient and rapid. The device can simulate the natural gas hydrate decomposing process under mining conditions, so as to achieve the high-precision temperature control, and accurate measurement of intensity and volume change; and the device has great significances for understanding the mechanical properties of the natural gas hydrate sediment and assessing the stability of a reservoir.

The invention relates to the technical field of detection and analysis instruments and in particular relates to an automatic gas chromatographic control system. The automatic gas chromatographic control system comprises an automatic gas chromatographic instrument center controller, a networking and data communication interface, an automatic chromatographic data processing and controlling workstation and a chromatographic analysis database; the automatic chromatographic data processing and controlling workstation comprises a chromatogram map processing and analyzing module. According to the automatic gas chromatographic control system, an embedded type technique, a software component technique and a networking technique are used. Compared with the prior art, the automatic gas chromatographic control system has the advantages that the integration of the gas chromatographic control system in controlling, processing and analyzing process can be achieved, so that the integration of embedded type control, operation management, data acquisition, chromatographic processing and analysis and report form statistics of the gas chromatographic instrument is improved; the networking control and sharing of a chromatographic analyzer are achieved; the componentization and configuration of the controlling, processing and analyzing software of the chromatographic instrument are achieved, so that the novel function can be quickly expanded by the software of the chromatographic instrument in a building block manner according to the requirement change of users.

A dynamic crosslinked polymer containing a combination supramolecular interaction is disclosed. The polymer contains at least two supramolecular interactions and the degree of crosslinking of at leastone of the supramolecular interactions is above its crosslinked gel point, wherein at least one of the supramolecular interactions is a subject-object interaction, and the dynamic crosslinked polymercan prepare polymer materials with strong reversibility, rich structure and various properties through introduction of the supramolecular interactions with different dynamicity. The difference between different kinds of supramolecular interactions in the dynamic crosslinked polymer makes the polymer exhibit a hierarchical dynamic reversible effect; and the dynamic crosslinked polymer can be usedas a self-repair material, a toughness material, a sealing material, a force transducer material, and the like, thereby being widely applied.

The invention discloses a vibration type point load tester. The vibration type point load tester is formed by a static loading unit and a vibration loading unit, wherein the static loading unit is formed by mounting a static pressurizing device (4) on a bottom platform of a bracket (7); the vibration loading unit is characterized in that a vibration motor (1) is mounted on an upper platform of the bracket (7); an upper pressurizing cone (2) which is vertically arranged and the bottom of the vibration motor (1) are connected to form a whole body; a lower pressurizing cone (3) is connected with an upper pressurizing piston of the static pressurizing device (4) and can move up and down through a central hole of a separation plate; the upper pressurizing cone (2) and the lower pressurizing cone (3) are located on the same axial central line; a rock test piece (15) is placed between the upper pressurizing cone (2) and the lower pressurizing cone (3). The vibration type point load tester disclosed by the invention inherits the advantage that a conventional point load tester is light and easy to carry; meanwhile, the capability of applying a vibration load is further increased. The vibration type point load tester can be conveniently carried to a construction site to test the strength of movable and static point loads of the test piece. The invention provides the unique vibration type point load tester for rock mechanics researches.

The invention discloses a manganese-containing boron iron-based wear-resistant flux-cored wire for surfacing and a preparation method of a surfacing alloy, belonging to the field of machining welding materials. A powder flux core of the flux-cored wire comprises the following components by mass percentage: 25-50% of ferro-boron, 15-40% of electrolytic manganese, and 10-60% of iron powder; an outer belt material of the flux-cored wire is an SPCC (Steel Plate Cold Commercial) steel belt; and the filling rate of the powder flux core in a hollow welding wire is 25-27%. In a process of preparing the surfacing alloy by gas shield welding, the voltage is 22-30V, the current is 190-240A, the wire feeding speed is 410-510mm / min, the gas flow rate is 15-25L / min, and the distance of the welding wireextending out of a current contact nozzle is 19-25mm. The surfacing alloy prepared by the flux-cored wire of the invention contains high-hardness Mn2B and Fe2B, the hardness of the alloy is higher, the wear resistance is improved under an impaction condition, the welding manufacturability is excellent, and the wear resistance of a surfaced metal under the impaction condition is excellent.

The invention discloses an anti-lightning-stroke performance testing system and method of a horizontal-shaft wind turbine blade. The system comprises an artificially triggered lightning unit, a data collection unit, a ground protection unit, and a tested anti-thunder unit installed inside the blade; and the artificially triggered lightning unit, the data collection unit, and the ground protection unit are arranged outside the blade. With a low-cost testing detection means, a precise anti-lightning-stroke performance parameter of the blade can be obtained, thereby meeting the requirement of anti-lightning-stroke design research and development and detection of the blade. The method is characterized in that lightning-stroke testing is carried out on the blade by using a field natural lightning-stroke mode or an artificially triggered lightning mode; and with portable equipment, the lightning triggering unit, capability and the response parameter of the blade during lightning are tested. The influences on the anti-lightning-stroke capability of the blade by different lightning triggering devices can be determined by modifying the artificially triggered lightning unit. Compared with the lightning-stroke testing method carried out in a high-voltage laboratory, the provided method had advantages of simple equipment, low cost, and convenient operation and the like.

The invention discloses an adsorbing material with beta-CD (Cyclodextrin) coupled on surface of PUF (Polyurethane Foam) and a preparation method and application thereof. The method is characterized by taking the PUF as a base material, exposing amino groups on the surface of the PUF by using a hydrochloric acid boiling method, coupling beta-CD molecules to the surface of the PUF by carrying out heating reflux reaction in a beta-CD water solution through a molecular coupling technology of an aldehyde compound, and carrying out heat soaking, thus obtaining the adsorbing material with the beta-CD coupled on the surface of the PUF. The adsorbing material disclosed by the invention has better hydrophily, and the water absorption rate can excess 2000 percent; the beta-CD solid carrier amount and the water absorption rate of the adsorbing material can be regulated in a large range, the adsorbing material has stronger adsorption ability on phenol in water, the adsorbed phenol can be parsed and regenerated by using an ethanol solution, the regenerated adsorbing material can be continuously used for phenol adsorption, and the adsorption ability is not obviously reduced after three times of adsorption-parse circulation.

The invention provides an environment light sensor and electronic equipment. The environment light sensor is arranged below a screen of the electronic equipment; the environment light sensor comprises a first receiving unit, a second receiving unit, a first linear polaroid and a first quarter-wave plate; the first linear polaroid is located above the first receiving unit; the first quarter-wave plate is located above the first linear polaroid; and at most one of the first linear polaroid and the first quarter-wave plate extends to a position above the second receiving unit; the first quarter-wave plate and the first linear polaroid can enable screen leaked light and environment transmitted light to penetrate through; the first linear polaroid is further used for blocking the environment transmitted light penetrating through the first quarter-wave plate to penetrate through, so that the first receiving unit receives the screen leaked light, and the second receiving unit receives the sum of the screen leaked light and the environment transmitted light; and the intensity of the environment transmitted light can be obtained through the difference between the screen leaked light and the sum of the screen leaked light and the environment transmitted light, so that the environmental transmitted light and the screen leaked light are distinguished, and the detection accuracy of the environment light sensor is improved.

The present invention provided a shield type connector having a higher freedom in a position and a shape of a fitting leg for fitting it on a board, capable of keeping a unity by protecting joint partof a shield shell even before board mounting, capable of lowering the height from the board after mounting on the board. Of the shield type connector 1 provided with a contact 8, an insulation housing 6 housing the contact 8, and a metal shield shell 10 covering an outer periphery of the insulation housing 6 and having a joint on one face of the insulation housing 6, the shield shell 10 is equipped with a separate metal fitting member 70, which has a face covering the joint 60, and a fitting leg 82 for mounting the shield type connector 1 on the board 26 at positions corresponding to either side of the shield shell 10.

The invention provides a composite brick and a preparation method thereof. The composite brick comprises a hot end aluminum brick layer and a cold end hollow sphere brick layer combined therewith, wherein the hot end aluminum brick layer is formed by high aluminum clinker or mullite, binding clay, silicon micropowder and phosphoric acid; and the cold end hollow sphere brick layer is formed by aluminum hollow spheres or mullite hollow spheres, high aluminum clinker or mullite, binding clay, silicon micropowder and phosphoric acid. Compared with the existing high aluminum brick or light brick, the hot end of the composite brick in contact with a working layer is the aluminum brick layer, thus having favorable high-temperature strength and heat stability; and the cold end is a hollow sphere brick of which the main raw materials are aluminum hollow spheres or mullite hollow spheres combined with high aluminum clinker or mullite, so that the hollow sphere brick is less prone to shrink at high temperature while reducing the heat conductivity coefficient. The composite brick obtained by combining the aluminum brick and the hollow sphere brick has the advantages of low heat conductivity coefficient, less temperature drop, low energy consumption, no shrinkage at high temperature and the like, and prolongs the service life.

The invention relates to a Chinese medicine for setting of fracture and a preparation method thereof and belongs to the field of Chinese medicines. The basic Chinese medicine active ingredients for internal application include 3-7g of native copper, 13-17g of sow, respective 18-22g of dragon's blood, notoginseng, cutch, ampelopsis japonica, frankincense, rhizoma drynariae and herba artemisiae as well as respective 28-32g of common bletilla pseudobulb, melon seeds and dog tibia; 28-32g of cassia twig needs to be added for setting the fracture on the upper part of the body, 28-32g of achyranthes is added for setting the fracture on the waist and 28-32g of dandelion is added for setting the fracture at the lower part of the body. The Chinese medicine active ingredients for external application are composed of respective 38-42g of achyranthes, safflower, angelica dahurica, dipsacus asperoides, cortex acanthopanacis radicis, bell cricket, pawpaw, native copper, crinis carbonisatus and cornu bubali. The application method is as follows: the Chinese medicines for internal and external application are taken as raw materials; the Chinese medicine powder for internal application, which is prepared by blending and pulverizing the raw materials for internal application, is prepared into Chinese medicine honeyed pills for internal application by adding honey, and each honeyed pill is 6-10g in weight, or the Chinese medicine powder for internal application is added with water and dried to be prepared into internal Chinese medicine water-paste pills with the weight of 3-5g per pill; the raw materials for external application are blended, pulverized, and decocted with water to be prepared into ointment. When the Chinese medicine is used for setting fracture, good curative effect, short treatment time and low cost can be achieved.

The invention discloses a gear ring and rolling way separable main driving bearing for a shield tunneling machine. The gear ring and rolling way separable main driving bearing for the shield tunnelingmachine comprises an outer ring assembly, an inner ring assembly arranged in the outer ring assembly and a rolling body and a retainer which are arranged between the outer ring assembly and a rollingway of the inner ring assembly; the inner ring assembly comprises an inner gear ring and an inner gear ring rolling way arranged at the periphery of the inner gear ring in a sleeving mode; and the outer ring assembly comprises an outer ring upper end cover, an outer ring upper end cover rolling way, an outer ring lower base and an outer ring lower base rolling way. According to the gear ring androlling way separable main driving bearing for the shield tunneling machine, a damaged part can be quickly replaced when bearing gear teeth are crashed or seriously worn and the rolling ways are worn,materials with different properties can be adopted according to the working requirements of an outer ring base body, the rolling ways and the gear teeth when overall bearing manufacturing is conducted, and then the purposes of shortening the maintenance downtime time, improving the maintenance working efficiency, reducing the maintenance and manufacture cost and increasing the overall economic benefit are achieved.

The invention discloses a preparation method of a 7XXX series aluminum alloy bar based on mechanical ultrasonic vibration aging. The preparation method comprises the following steps that A, a 7XXX series aluminum alloy cast ingot is subjected to homogenization treatment; B, hot extrusion is conducted on the homogenized cast ingot to form the bar; and C, the bar obtained after hot extrusion is rotated to pass through a mechanical ultrasonic vibration device located at the fixed position, and the 7XXX series aluminum alloy bar based on mechanical ultrasonic vibration aging is obtained. According to the preparation method, the mechanical ultrasonic vibration aging device with four symmetrically distributed pressure heads is used for machining the hot extrusion bar, so that uniform precipitation of a nanoscale precipitated phase in an alloy, nanocrystallization of surface layer grains and gradient distribution of grain sizes are promoted, meanwhile, good surface quality and uniformity are achieved, the toughness and fatigue resistance of the 7XXX series aluminum alloy are remarkably improved, and combination of ultrahigh strength and good plasticity is achieved.

The invention discloses a preparation method of a PUF (polyurethane foam) adsorbing material. According to the method, PUF is used as a base material, amino groups on the surface of the PUF are exposed firstly with a hydrochloric acid boiling method, then the amino groups are converted into diazo salt through a diazo-reaction, CMbeta-CD (carboxymethyl beta-cyclodextrin) is coupled and fixed on the surface of the PUF by the aid of electrostatic self-assembly of a CMbeta-CD aqueous solution and a nitrogen release coupling reaction under irradiation of ultraviolet light, finally, CMbeta-CD which is not assembled and coupled is removed through hot water soaking, and the PUF adsorbing material is prepared. The adsorbing material has the better hydrophilic property, the CMbeta-CD capacity and the water absorption of the adsorbing material are adjustable in a large range, and the adsorbing material has higher adsorption capacity for phenol in water; the adsorbed phenol can be desorbed with an ethanol aqueous solution, the adsorbing material is regenerated, and phenol can be recycled; the regenerated adsorbing material can adsorb phenol continuously, and the adsorbing capacity is not reduced obviously.

The invention relates to a friction lining (1) which is particularly used in a clutch or brake. The invention at least has a supporting element (2), at least one side of the supporting element is provided with a fiction material (3). In order to achieve a firm and non-warping combination, the invention is provided with the supporting element (2) which at least has one circular component or circular segment component (4) winding and extending on the circumference segment of a predetermined friction lining (1); and the radial extending (r) of the supporting element is smaller than that (r)of the fiction material (3), wherein, a plurality of connecting sheets (5), at least one sides of which are wound by the fiction material (3) to form a tongue shape is arranged on the circular component or circular segment component (4); the supporting element (2) is provided with a plurality of fixing segments (6) extending inwards along the axial direction; and the fixing segments extend outwards from the radial direction of the fiction material (3). The invention relates to a friction clutch, in particular to a friction clutch for vehicle.

The invention discloses a method for acquiring electro-hydraulic pulse shock wave intensity under a high static pressure. An electro-hydraulic pulse shock wave emitter performs gap discharge on liquidthrough a pulse capacitor, and shock waves are outwardly radiated through quick expanding of a cavity and electric arc. The electro-hydraulic pulse shock wave emitter normally operates in deep sea orland environments, the static pressure around the electro-hydraulic pulse shock wave emitter is increased along with increasing of operating depth, and the shock wave intensity is largely different from that under a normal pressure due to influences of static pressure in a discharge process. A shock wave generation process includes a prebreakdown process and a main discharge process, and energy loss in the prebreakdown process is calculated according to a relationship of variation of prebreakdown delay along with the static pressure. Influences of the static pressure on liquid density, shockwave propagation speed and cavity expanding rate are considered on the basis of the fluid mechanics equation, energy deposition of arc channels under different static pressures is calculated, and inversion of efficiency in conversion of electric energy into mechanical energy in the main discharge process is realized. Further, by integrating of the two processes, the relationship of variation of shock wave intensity along with the static pressure is obtained.

The invention relates to the technical field of medical biological internal fixation instruments, and discloses a biological joint-less locking nail, which comprises a locking nail body (22), wherein the locking nail body (22) comprises a nail head (1), a nail body (2) and a nail tail (3), which are sequentially connected; the nail body (2) is provided with threading holes (11), and is made from cortical bones; so that the biological joint-less locking nail is endowed with high biocompatibility and bone conduction and induction activity, and can be completely degraded and absorbed after complete bone healing. The biological joint-less locking nail is convenient to use, time-saving and efficient in operation and firm in fixation; the biological joint-less locking nail is made from cortical bones, so that initial fixation strength can be achieved, and tendon-bone healing fixation can be facilitated; the raw materials are low in cost, so that the economic burden of a patient is greatly reduced.

The invention discloses a multi-device fusion calligraphy teaching system, and relates to the technical field of calligraphy teaching. The multi-device fused calligraphy teaching system solves the problems that when a traditional APP for assisting calligraphy practice is used, the evaluation standard is single, the problem in the writing process cannot be visually found, and meanwhile when the APP is used, a copying mode is separated from a traditional calligraphy writing mode.

The invention provides a fan blade cantilever beam element-level strength test method, which is based on a pyramid test verification strategy, obtains the local strength performance of the fan blade and identifies the design weak points of the fan blade, and supports the part-level test of the fan blade, including the following steps: S 1 , determining a sampling position on the fan blade to obtain a component-level test piece, the sampling position is located at the leading edge and the trailing edge of the fan blade; S 2 , Determine the size of the test piece; S 3 , carry out the sampling of described test piece to described fan blade; S 4 1. The fixed end of the test piece is clamped by the fixture, and the other end is cyclically loaded and unloaded by the loading head until the test piece is destroyed. The invention has strong pertinence and can adapt to the local characteristics of the fan blades made of composite materials. The purpose of the test verification is clear, and the stiffness and strength performance of the leading and trailing edges of the blade can be obtained, as well as the corresponding typical failure modes, which is conducive to identifying design weak points.

The invention provides a fan blade cantilever beam element-level strength test method. Based on a pyramid test verification strategy, local strength performance of a fan blade is obtained, design weakpoints of the fan blade are recognized and a part level test of the fan blade is supported; the method comprises the following steps: S1, determining sampling positions on the fan blade, to obtain aelement-level test piece, wherein the sampling positions are located at the front edge and the tail edge of the fan blade; S2, determining the size of the test piece; S3, performing sampling of the test piece on the fan blade; and S4, clamping the fixed end of the test piece through a clamp, and circularly loading and unloading the other end of the test piece through a loading head until the testpiece is damaged. The method is high in pertinence and can adapt to local characteristics of the fan blade made of a composite material. Test verification aims are clear, rigidity, strength performance and corresponding typical damage forms of the front edge and the tail edge of the blade can be obtained, and weak points can be recognized and designed favourably.