102results about How to "Make up strength" patented technology

The invention relates to a hollow short implant of a dental implant, which comprises an one-stage structure and a two-stage structure, wherein the one-stage implant part is connected with an abutment part into a whole; the two-stage structure comprises an implant, a bridge adapter ring and a central bolt; peripheral cylinder spirochaeta of the implant part is divided into three stages, saw-tooth double thread in the main part of the implant can bear heavier load; the hollow structural design of the implant part keeps live bone column with a base and blood supply so as to enhance the supporting strength of the bone and the implant; a self-tapping socket can make bone tissue of the internal and external of the implant grow through and heal; a platform transfer design allows the epithelial cuff of the gum around the implant more reliable to avoid bone resorption caused by micro moving and micro leakage. The short hollow implant realizes combination of the internal and external bone, increases the combination area and supporting strength for a short or a long term, can be implanted rapidly with high strength, better retention in the early stage, high success rate in a long term, and solves the problem that the upper and lower jaws abrase the dental area in the conventional oral implant technology.

An exoskeleton device and method of using the same is provided that helps rehabilitate limbs such has the lower arm. Embodiments of the exoskeleton device have multiple degrees of freedom so that a limb such as the lower arm may flex or rotate in multiple directions to establish or re-establish neural connections in the brain. With the lower arm example, a person may grasp a handle in the exoskeleton and then flex the lower arm about a pronation/supination axis, a flexion/extension axis, and/or an abductor/adductor axis. The exoskeleton device has several modes of operation where actuators can aid the person's motion, resist the person's motion, or passively allow free motion of the person's limb.

The invention relates to a manufacturing technology of an electrical-conductive exothermic material, in particular to high-electrical-conductivity graphene carbon-fiber electrical-conductive paper and a preparation method thereof. The electrical-conductive paper comprises chopped carbon fibers, polyester super-short fibers, graphene powder and wood pulp fibers, and the high-electrical-conductivity graphene carbon-fiber electrical-conductive paper is obtained by conducting permeabilization treatment, defibering and dispersing, pulping treatment, mixing and papermaking on all the materials. According to the high-electrical-conductivity graphene carbon-fiber electrical-conductive paper and the preparation method thereof, the fibers are uniformly distributed, the thickness is uniform, the strength is high, water resistance is achieved, the air permeability is good, high electrical conductivity is achieved, the transition heat efficiency is high, the heat efficiency of the product is improved, the service life of the product is prolonged, and the electrical-conductive paper is a novel leap-upgrading and transformational breakthrough in the electrical exothermic material technology.

The invention belongs to the field of function materials and particularly relates to an amorphous-nanocrystalline composite magnetic power core and a production method thereof. The amorphous-nanocrystalline composite magnetic power core is mainly made of iron-based amorphous powder, iron-based nanocrystalline powder, organic binder, and insulating agent. The insulating agent is a mixture of inorganic oxide, carbide and nitride. The organic binder and the insulating agent account for 0.5-2wt% and 0.5-4wt% of total weight of the two powders respectively. The production method includes: amorphous strip embrittlement, mechanical breaking for powdering, screening, passivation and insulation coating, die pressing, and heat treatment. The amorphous-nanocrystalline composite magnetic power core has excellent soft magnetic properties, thermal stability and mechanical strength under medium and high frequencies, and can be massively used for various inductive components, such as filters, current regulators and energy storage components, on various switch power modules.

The invention belongs to buffering and energy absorption components and discloses a buffering and energy absorption filling pipe. The problem that an existing foamed aluminum filling pipe is poor in energy absorption effect is solved. Aluminum-based composite foam materials are filler to be made into an aluminum-based composite foam filling pipe component, the energy absorption effect many times that of an ordinary foamed aluminum filling pipe component is achieved, the disadvantage that the aluminum-based composite foam materials cannot be independently used as an energy absorption or bearing structure due to poor intensity is overcome, and the high-intensity aluminum-based composite foam filling pipe component can fully play and integrate the advantages and mechanical property of various materials when bearing explosive blast, impact or other extreme loads, not only has the independent bearing capacity, but also has the outstanding advantages of being high in stability and energy absorption capacity and capable of working in the extreme environment and the like. Equivalent static compression tests are conducted on the buffering and energy absorption filling pipe and prove that the buffering and energy absorption filling pipe has the energy absorption capacity and mechanical property superior to those of the ordinary foamed aluminum filling pipe. Compared with a traditional hollow steel pipe and the ordinary foamed aluminum filling pipe, the crushing force and the energy absorption capacity are greatly improved.

This invention relates to a hyperthermal molybdenum disilicon zirconium oxide compound heater, belonging to the heating material technology. This heater uses molybdenum disilicon zirconium oxide two-phage reticulated structure compound material as matrix, concretely it uses (Mo1-x,Wx)Si2 as one phage of the two-phage compound material, where X=0-0.5, and uses yttrium oxide/calcium oxide stabilized zirconium oxide powder as the other phage, where the content of the zirconium oxide powder is 30-70vol% of the compound material. The process comprises: charging the above two-phage compound material and sintering aid, adding in adhesive for pugging, extrusion molding, drying, burning and filming treatment, so as to obtain the product, wherein: the bar produced by organic adhesive molding and drying needs degreasing process under 0.1MPa hydrogen gas pressure, at 300-600Deg C for 3-30 hours, where the burning temperature is 1500-1750Deg C. The invention can produce high efficient and long-life heater at more than 1850Deg C.

The invention provides an improved labyrinth and fingertip combined type seal structure which adopts a fingertip seal and a fingertip seal front baffle plate as main bodies, wherein the fingertip sealfront baffle plate is improved into a labyrinth seal structure, the fingertip seal comprises two high-pressure seal grade fingertip pieces and a low-pressure seal grade fingertip piece with a fingertip shoe, arc-shaped gaps are arranged on the fingertip pieces, the three fingertip pieces are fixed together, the front baffle plate is arranged in front of the high-pressure seal grade fingertip pieces, a rear baffle plate is arranged at the rear of the low-pressure seal grade fingertip piece with a fingertip shoe, and the labyrinth seal is a seal tooth which is inlaid in the front baffle plate.The labyrinth and fingertip combined type seal structure is used for axially sealing a mechanical rotor of an impeller and can effectively prevent the axial gas leakage of an engine; and if the direction of the seal tooth is changed, the labyrinth and fingertip combined type seal structure can be used for sealing holes.

The invention discloses an integral hollow slab bridge structure based on ultra-high-performance concrete connection and a construction method thereof. The bridge structure is formed by connecting atleast three prefabricated hollow slab bridges in the transverse direction of the bridges through at least two ultra-high-performance concrete joints and a plurality of ultra-high-performance concretetransverse stripes. Each ultra-high-performance concrete joint comprises a hinge joint between every two hollow slab bridges and ultra-high-performance concrete longitudinal stripes. The hinge joint forms a basic frame through two prefabricated hollow slab bridge web plates, embedded transverse connecting steel bars extending out of the web plates, longitudinal steel bars and hoop bars and is filled with ultra-high-performance concrete. The ultra-high-performance concrete longitudinal stripes include steel bar frameworks formed by prefabricated bridge top slab extending steel bars, longitudinal steel bars and transverse steel bars, and the ultra-high-performance concrete longitudinal stripes and the hinge joints are filled with ultra-high-performance concrete simultaneously. The integral hollow slab bridge structure is good in stress performance, good in durability and remarkable in full-life economical benefit, and construction steps can be executed by adopting a traditional construction device and process and are simple, quick and convenient.

The invention relates to a polyphenyl ether elastomer composition and a preparation method thereof. The composition comprises the following components in percentage by mass: 3 to 40 percent of polyphenyl ether, 25 to 50 percent of styrene block polymer resin, 15 to 50 percent of rubber processing oil, 0 to 40 percent of polyolefin, 0 to 20 percent of inorganic mineral filler and 0.1 to 0.3 percent of antioxidant. The preparation method comprises the following steps of: weighing the materials in a mass ratio, mixing the materials at a high speed in a high-speed mixer, putting the mixture into a double-screw extruder, and performing melt extrusion and granulation to obtain the polyphenyl ether elastomer composition. Compared with the prior art, the polyphenyl ether elastomer composition hasthe advantages of softness, high heat resistance and the like.

The invention relates to a high-strength titanium diboride particle-reinforced copper-based composite material used for heavy equipment, and a preparation method thereof. The high-strength titanium diboride particle-reinforced copper-based composite material is composed of the following components, by volume percentage, of 6-9% of high-purity titanium diboride with the purity greater than 98%, and 91-94% of copper alloy ZCuSn5Zn5Pb5. The high-strength titanium diboride particle-reinforced copper-based composite material used for the heavy equipment is prepared through the steps of smelting, stirring, heat insulation, casting and the like. According to the high-strength titanium diboride particle-reinforced copper-based composite material used for the heavy equipment, which is provided by the invention, the strength, the hardness, the slide speed and the service life of the copper alloy ZCuSn5Zn5Pb5 are increased and prolonged while the original wear resistance and corrosion resistance thereof are ensured by virtue of the characteristics of a high melting point, corrosion resistance, high hardness, good heat stability, high-temperature oxidization resistance and the like of the high-purity titanium diboride, and therefore the requirements for applications of the high-strength titanium diboride particle-reinforced copper-based composite material to the heavy equipment are met.

The invention discloses a method for quantitative analysis of main pyrazine flavor substances in cigarette mainstream smoke and relates to a method for gas chromatography-tandem mass spectrometer-based determination of eight main pyrazine flavor substances such as 2-methylpyrazine, 2, 5-dimethylpyrazine, 2, 6-dimethylpyrazine, 2-methoxypyrazine, 2, 3, 5-trimethylpyrazine, 2-ethyl-3-methylpyrazine, 2, 3, 5, 6-tetramethylpyrazine and 2-acetylpyrazine in cigarette mainstream smoke. The method comprises internal standard solution, standard work solution and sample solution preparation, gas chromatography-tandem mass spectrometry analysis and determination result calculation. The improved detection method can be operated simply, has response sensitivity and quantitative analysis accuracy, effectively reduces complex sample matrix-caused interference and is suitable for quantitative analysis of a trace quantity of a target object in a complex flue gas matrix.

A movable connector having a fixed housing fixed to a wiring board and a movable housing displaceably connected to the fixed housing, and a reinforcing tab for reinforcing the connector. The reinforcing tab comprises a connection part connected to the end part of the fixed housing, a pair of curved parts curved inward along the pair of side faces of the fixed housing, and a soldering part provided at the lower ends of the pair of curved parts and used for soldering to the wiring board.

The invention relates to a high-strength cast aluminum-silicon alloy material and application thereof to a hydraulic shell. The alloy material comprises the following chemical components: 6.0 to 8.0 percent of Si, 0.2 percent of Fe, 0.3 to 0.6 percent of Cu, 0.2 percent of Mn, 0.55 to 0.75 percent of Mg, 0.2 percent of Zn, 0.1 to 0.2 percent of Ti, 0.01 to 0.02 percent of Sr and the balance of Al. according to the application of the alloy material to the files of automobiles, aviation and aerospace, the invention comprises: (1) according to the alloy material, the components are smelted and proportioned, and refined to remove gas to form a melt; (2) a casting process; and (3) a heat treatment process. Based on the alloy material and the heat treatment process, products can meet the using performance requirements.

The invention provides a light straw concrete wall material and a preparation method thereof. A standard mixture ratio of water to cement to ceramsite to sand is 50:100:106:123, wherein the standard mixture ratio is only a reference standard ratio and is not adopted as an actual operation ratio. Then, with the mass percentage of the cement as the standard, 1%-3% of the straw is added, and 5%-15% of the cement is replaced with fly ash. According to the volume percentage, the replacement rate of the aggregate is 0.25% or 50%, 0.25% or 50% of the ceramsite is replaced with stones, and meanwhile,the proportion of the sand is 38% or 40% or 42%. The problem that some straw piles are difficult to dispose can be solved, the weight of a wall body is reduced, and the requirements for the mechanicalproperties of the straw concrete wall material are met at the same time.

The invention discloses a filtering material for high-temperature smoke and dust and a preparation method thereof. The filtering material is composed of five layers of symmetric composite structures and comprises high-temperature-resistant fiber nonwoven cloth on the outermost layers, high-temperature-resistant fiber woven cloth on the layers close to the outermost layers and superfine glass fiber nonwoven cloth on the middle layer. The preparation method includes: using the superfine glass fiber nonwoven cloth as a core filtering layer and composites of the high-temperature-resistant nonwoven cloth and the high-temperature-resistant woven cloth as upper and lower coating layers of the superfine glass fiber nonwoven cloth; reinforcing through ultrasonic binding or stitching with high-temperature-resistant stitching lines to prepare the filtering material. The filtering material can realize long-acting, low-resistance and high-accuracy filtering, so that energy consumption and raw material cost during use are lowered greatly.

The invention relates to a high-strength nanometer silicon carbide strengthening copper-based composite material and a preparing method thereof. The high-strength nanometer silicon carbide strengthening copper-based composite material used for a high-load impeller is prepared from, by volume, 1.2-3.5% of nanometer silicon carbide and 96.5-98.8% of copper alloy ZCuSn10Zn2. Preparing of the high-strength nanometer silicon carbide strengthening copper-based composite material used for the high-load impeller includes the steps of stirring, smelting, casting and the like. According to the high-strength nanometer silicon carbide strengthening copper-based composite material used for the high-load impeller, the beneficial effects that the nanometer silicon carbide is high in hardness, good in wear resistance and self lubrication, high in heat conductivity, low in heat expansion coefficient, high in high-temperature strength and the like are utilized, the original corrosion resistance and machinable performance of the copper alloy ZCuSn10Zn2 can be ensured, meanwhile, the strength and hardness of the copper alloy ZCuSn10Zn2 are improved, and therefore the service life of the high-strength nanometer silicon carbide strengthening copper-based composite material in an important impeller accessory is prolonged.

The invention discloses a C/C-ZrC-SiC surface-layer iron-based alloy modified composite material and a preparation method thereof. The composite material comprises a C/C-ZrC-SiC matrix and a modifiedlayer; and the modified layer is an iron-based high-temperature alloy and uniformly fills and seals the surface layer of the matrix through a low-pressure suspension infiltration technology. A preparation technology for the composite material is characterized in that a blank is immersed into an iron-based high-temperature alloy melt to be subjected to low-pressure suspension infiltration, and themelt temperature is controlled to be 1545-1635 DEG C so as to obtain the C/C-ZrC-SiC surface-layer iron-based high-temperature alloy modified composite material. The composite material has the advantages that the iron-based high-temperature alloy is uniformly distributed on the surface layer of the matrix, the surface density is increased, the heat dissipation quantity is large in the evaporationprocess, so that the surface temperature of the matrix can be lowered, in addition, high-temperature and high-speed air flow washout can be resisted, the damage to the matrix caused by mechanical erosion can be avoided, and meanwhile, the high-temperature creep resistant performance of the iron-based high-temperature alloy is excellent, so that the defects of the matrix in strength and toughness can be overcome. The preparation method has the advantages of being simple in technological process, short in period, wide in application size range of workpieces and novel in ablation mechanism.