314results about How to "Use less material" patented technology

The invention discloses a dry-hanging curtain wall for thermal insulation and decoration and an installation technique thereof, which essentially comprises a 'duplex F' shape installation hanging part; the radial frameworks and the zonal frameworks of the 'duplex F' shape installation hanging part are vertically arranged; a first layer of the radial frameworks with two or more than two layers is level to the zonal frameworks and the radial framework at the last layer is at a certain distance from the tail end of the zonal framework; the width and thickness of the radial frameworks at every layer can be equal or not. Insulation boards can be fixed in a point-typed installation and location method by the installation hanging part, thus overcoming the defects of the prior art, providing an installation technique of the thermal insulation and decoration curtain wall without installing the horizontal and the vertical joist, simplifying the installation procedure, saving the installation raw materials and cost and overcoming the defect that the rain leakage is easy to happen in the splicing seam of the insulation board adopting the traditional method.

The invention discloses a 3D-printing-based customized external foot fixation protector. The 3D-printing-based customized external foot fixation protector comprises protectors at left and right portions, dual-dovetail-groove fasteners distributed on the edges of the protectors and air vents distributed in the surfaces of the protectors; the protector is realized through a 3D printing technology on the basis of CT data of a foot of a patient and is printed as left and right portions crossing an ankle, and the protectors at the left and right portions are fixed through the dual-dovetail-groove fasteners. The 3D-printing-based customized external foot fixation protector can be optimally customized aiming at different wounds of different patients, has the advantages of light weight, good air permeability, convenience in installation, simplicity in use and reliable fixation, facilitates the rehabilitation activities of the patient, prevents skin aging, itching and the like, and greatly improves the comfort of the patient during rehabilitation.

The invention relates to a manufacturing method of removable dentures. Currently, the removable-denture manufacturing methods in all countries in the world are a thermos-coagulation packing method, need steps such as casing, filling, squeezer pressurizing and water bath polymerization (dental cast cooking pot), are complex in process, time-consuming and labor consuming, are non-uniform in moldingcase pressurizing and are difficult in precise mastering and control of heating speed and heating maintaining time during heat processing. The method has the advantages that the manufacturing flow oftraditional removable dentures is improved, joint height increasing and contraction bubbles of the removable dentures manufactured by the traditional manufacturing process are avoided, and the base-material filling of the partial removable dentures and attachment dentures can be performed; the models of the attachment dentures does not need to be pressurized on a squeezer, and the subfissure or deformation of the fixing-part porcelain teeth of the attachment dentures is avoided.

The rut resisting admixture for high-grade asphalt highway consists of low density polyethylene of 20-50 kD 50-85 weight portions, high density polyethylene of 10-30 kD 10-45 weight portions, petroleum asphalt in 10-50 needle penetration 5-10 weight portions and diatomite 5-20 weight portions. Experiment shows that the rut resisting admixture of the present invention has low material consumption, low production cost, good waterproof performance, high wear resistance and other advantages, and may be used a the rut resisting material for asphalt road.

The invention discloses a double-nail-hook metaphysis pressurizing fixing device which comprises a first fixing part, a second fixing part and a connecting part. The connecting part is used for connecting the first fixing part and the second fixing part. The first fixing part comprises two strip-shaped objects. The strip-shaped objects are used for penetrating through the fracture part of the metaphysis and being inserted into the backbone to be fixed. The connecting part is in a forked strip-shaped hook shape attached to the surface of the bone. Forked strips of the connecting part and the strip-shaped objects of the first fixing device are connected in a one-to-one corresponding mode. A plurality of pressurizing fixing holes are formed in the second fixing part. Pressurizing screws penetrate through the pressurizing fixing holes so that the second fixing part can be fixed to the backbone connected with the metaphysis. The pressurizing fixing device is convenient to take out, low in cost, and beneficial for healing the fracture part and preventing secondary injuries to normal bone tissue.

The invention discloses a foldable electric bicycle which comprises a frame assembly, a handlebar assembly, a front fork assembly with a front wheel set and a rear fork assembly with a rear wheel set. The frame assembly comprises a front frame tube and a rear frame tube which are connected with each other. The handlebar assembly is arranged at the front end of the front frame tube, the rear fork assembly is arranged at the lower end of the rear frame tube, and the front fork assembly is arranged at the lower end of the handlebar assembly. The front frame tube and the rear frame tube are in rotating connection through a rotating shaft which is horizontally arranged so that the front frame tube and the rear frame tube can be far away from each other in parallel or be close to each other in parallel around the rotating shaft to be in an unfolding state or a folding state, wherein in the folding state, a certain spacing distance exists between the front wheel set and the rear wheel set so that pushing can be conducted conveniently. The foldable electric bicycle is small in size, small in number of adopted materials, low in bicycle body weight, low in manufacturing cost, simple in folding structure and convenient to fold.

A heat dissipation device for a heat-generating package is composed of a cavity, a working fluid, an evaporating unit, a condensing unit, and fine grooves. Its preparing process includes such steps as preparing die, and using the die to prepare said evaporating unit, condensing unit and fine grooves on the inner surface of said cavity.

The invention discloses a simple pendulum milling head based uniaxle rotating platform. It includes milling head (1), electro main axle of milling head is installed in the main electro axle box (2). The simple pendulum milling head in the invention also includes the uniaxle rotating platform (4) which is drove by alternating current permanent-magnet synchronous external rotor torque motor, the uniaxle rotating platform (4) is installed horizontally; the main electro axle box (2) is fixed on the face plate (5) of uniaxle rotating platform (4) by latus. The simple pendulum milling head bases on the uniaxle rotating platform in the invention, designs the simple pendulum milling head using the uniaxle rotating platform, reduces the design and manufacture difficulty greatly, separates the original integral complex main axle box body into connection method of uniaxle rotating platform face plate, thus omits the trouble of big box body casting, avoids the high cost of inner hole fine finishing of box, can realize simple pendulum milling head rapidly pendulum Head and save a lot of production costs.

The invention discloses a combination of a battery protection board and a battery core as well as a combination method thereof. The combination method comprises the following steps of: providing a battery protection board equipped with conductive bodies, welding a pair of positive connecting blocks and a pair of negative connecting blocks on a surface of the battery protection board in a SMT (Surface Mounting Technology) mode, electrically connecting each positive connecting block and each negative connecting block with the corresponding conductive bodies; covering the battery protection board on an end surface which is provided with a positive plate and a negative plate of the battery core, enabling the positive connecting blocks and the negative connecting blocks to correspond to the positive plate and the negative plate; and propping the positive bar and the negative bar of a DC (Direct Current) spot welding machine in the conductive body position at the other surface of the battery protection board, pressing the battery protection board on the battery core, and welding the battery protection board on the positive plate and the negative plate of the battery core via the positive connecting blocks and the negative connecting blocks so that the battery protection board is electrically connected with the battery core. The combination method of the battery protection board and the battery core enhances the efficiency and improves the welding quality.

The invention provides a positive electrode material coated with a phosphorus-containing compound and a preparation method of the positive electrode material, and relates to a positive electrode material of a lithium battery. The preparation method comprises the following steps: coating the surface of a positive electrode material with a phosphorus-containing compound layer through an atomic layerdeposition method, wherein the phosphorus-containing compound in the phosphorus-containing compound layer is one or more of phosphorus oxide, phosphorus nitride and phosphorus oxynitride. The coatingthickness can be accurately controlled through atomic layer deposition, and a uniform protective layer is formed. The deposited phosphorus-containing compound reacts with residual lithium on the surface of the positive electrode material to generate a fast ion conductor substance, so that the residual lithium on the surface of the positive electrode material is reduced, the phosphorus-containingfast ion conductor can reduce the interface impedance, and the material performance is improved.

The invention discloses a low-power vertical wind generator fixed with upper vane and lower vane supporting discs at the upper and lower ends of a center column, respectively, installing plural vanes between the two supporting discs through vane shaft coupling, where the lower end of each vane is connected with a vane windward angle drive mechanism through the vane shaft coupling, the upper end of the center column is connected with an anchor and the lower end of the center column is connected through a main bearing to a base, the main bearing is connected with a generator equipped with reducer through a power transmission mechanism provided with sensor; a wind vane is arranged above the anchor, and the sensor is connected with the windward angle drive mechanism through main controller and the whole is anchored with cable through the anchor, and the main bearing is of a compound pull bearing structure. And it effectively prolongs service life and has strong practicality.

The invention relates to an assembling jig frame of a curved surface truss. The assembling jig frame comprises a base and a plurality of jig frame sections which are fixedly assembled and spliced in the extending direction of the curved surface truss above the base. The radian of the top of the assembling jig frame is matched with the design radian of the curved surface truss, a plurality of splicing fixed fixed-plates are symmetrical and fixedly arranged on two sides of the top of the assembling jig frame, and supporting rods are fixedly arranged on each two symmetrical fixed plates in a penetrating mode. Fixed frames are fixedly arranged at the top of the assembling jig frame in a splicing mode. The fixed frames are fixed to the supporting rods in a splicing mode and are matched with thesupporting rods to support the curved surface truss. The assembling jig frame meets the requirement of vertically assembling the curved surface truss in the vertical direction, can effectively ensurethe assembling size and overall assembling quality of the curved surface truss, reduce the deformation during assembling and lifting of the curved surface truss and ensure the structural integrity ofthe curved surface trusses, so that the structural safety and normal use of a cantilevered roof are ensured.

A flexible-tube wall for river, lake, reservoir, etc to isolate water regions, filtering water and treating water by using it in conjunction with biochemical reactor is composed of the horizontal collecting tubes, the vertical sub-tubes, adhesive fastening belts, lifting lugs, liquid filling connection tubes between said collecting tube and sub-tube, and jointers.

The invention discloses a submerged-arc welding deep penetration single-side welding technology of thick plates. The technology comprises the steps of cutting notches in to-be-welded steel plates; splicing the two steel plates with the notches through adopting the V-shaped notches, and fixing the two steel plates to a liner plate, wherein an included angle of the two notches is 45 degrees, and a clearance of the bottoms of the two notches is 0 to 5 mm; carrying out fixed point welding inside the notches, wherein the interval between adjacent fixed points is 1 m, and the length of the fixed points is 50 mm; welding steel plates of which the thickness is smaller than 35 mm and the thickness is 35 to 70 mm through adopting a double-welding wire matched sintered flux technology, and welding steel plates of which the thickness is 70 to 100 mm through adopting a three-welding wire matched sintered flux and backing flux technology. According to the submerged-arc welding deep penetration single-side welding technology, the consumed time is short, the utilized welding materials are few, the welding efficiency can be greatly improved, and the labor and material cost is reduced.

The invention discloses a shielding analysis and optimization method for the 3D ground power-frequency electric field of an UHVAC power transmission line. The method comprises that S1) an analysis and calculation model for the shielding effect of the 3D power-frequency electric field is established; S2) a shielding effect threshold and a shielding line optimizing objective function are established; S3) the 3D power-frequency electric field of a sensitive area when shielding lines are erected is calculated; S4) whether the power-frequency electric field surrounding the sensitive area satisfies requirement of limiting value is determined, and if no, the positions, amount and length of the shielding lines are optimized and adjusted till the sensitive area satisfies the requirements; S5) the state of the shielding lines is adjusted repeatedly till the total length of the shielding lines is minimal and the sensitive area satisfies the requirement of the limiting value; and S6) an optimal shielding scheme is provided aimed at practical lines. On the basis of a simulated charge method, the shielding effect of the ground 3D power-frequency electric field of the UHVAC power transmission line can be analyzed and optimized, it can be ensured that optimal shielding effect is obtained, materials used by the shielding lines are reduced, and the application value is practical engineering is high.

The invention discloses a Hall-effect large-diameter pipeline flowmeter and a method thereof for measuring flow of large-diameter pipelines. The Hall-effect large-diameter pipeline flowmeter comprises a large-diameter pipe and a small-diameter branch pipe, two ends of the small-diameter branch pipe are arranged in the large-diameter pipe, and a Hall flow sensor is arranged in the small-diameter branch pipe. By means of the theory of Hall effect and the principle that flow value of the large-diameter pipe is proportional to that of the small-diameter branch pipe, numerical value of the large-diameter pipeline flowmeter is worked out by pulse signal frequency value of the flow sensor of the small-diameter branch pipe according to the formula Q=KF, and the K in the formula is accurately calibrated during manufacture of the flowmeter. Accordingly, the large-diameter pipeline flowmeter is convenient to manufacture, low in material consumption, low in cost, small and convenient to mount, use and maintain and brings considerable social and economic benefits.

The invention relates to a construction method adopting grouting to stop water in bare rock of an underground cavern and belongs to the technical field of civil construction. The construction method comprises six steps of determining a grouting range for a water seepage area of the underground cavern; determining parameters of grouting holes in the grouting range of the underground cavern; pre-burying a water seepage drainage pipe and a return pipe; spraying concrete in the grouting range; performing grouting in the grouting range with a method; ending grouting according to a standard. According to the construction method adopting grouting to stop water in the bare rock of the underground cavern, construction of the grouting holes and pre-burying of the drainage pipe before spraying of the concrete are sufficiently used, slide waste of the sprayed concrete material is reduced, combination of the sprayed concrete material with rock surface is increased, grouting is performed after concrete spraying according to the grouting ideas of grouting outer-ring holes firstly and then grouting inner-ring holes, grouting seepage-free holes firstly, then grouting small-seepage holes and finally grouting large-seepage holes, water seepage in the cavern is prevented effectively, repeated grouting to stop water is avoided, time is saved, and the construction progress is accelerated.

The invention discloses a fabricated energy-saving building, and relates to the field of energy-saving board rooms. The fabricated energy-saving building comprises wall body plate units, roof plate units and a locking mechanism. The wall body plate units close to a roof are fixedly connected with the roof plate units by steel angle fixing pieces. The locking mechanism comprises mounting grooves respectively formed in vertical faces of the adjacent wall body plate units and roof plate units, and female hook bodies and male hook bodies in the mounting grooves. Flow guide plates are arranged at the connecting seams between the adjacent roof plate units. Each flow guide plate comprises two inclined plates with the planes being manually obliquely. The inclined plates are fist inclined plates and second inclined plates. The inclination angle of the first inclined plates is the same as that of the roof plate units. The ends of the second inclined plates are inserted below the first inclined plates. The fabricated energy-saving building has excellent heat preservation effect, has good water resisting and fire resisting performance, has a certain of shock resisting ability, and is suitablefor post-disaster disaster relief housing.

The inventing relates to a supporting frame of a wood roof, which comprises an inverted V-shaped bracket. A bottom beam (9) is connected at the lower part of a central column (1) of the inverted V-shaped bracket; extension connectors (8) fixedly connected with the central column are hung at two ends of the bottom beam (9); the extension connectors (8) are connected with an extension beam (6) through a mortise (11); the tail end of the extension beam (6) is connected with a roof framework; an extension oblique beam (4) is connected between the tail end of the extension beam (6) and the top of the inverted V-shaped bracket; and a short column (5) is connected between the extension oblique beam (4) and the extension beam (6). The supporting frame of the wood roof can support polyhedral sloping rooftop, has strong supporting capacity and large span, and uses less material.

The invention discloses a making method of 3D printing arch supports. The making method comprises the following steps: examining conditions of a patient; conducting 3D scanning on foot bottoms of thepatient, so that 3D scanning data of the foot bottoms is obtained; scanning the bottom surfaces of insoles which are used by the patient in daily life via a 3D scanner, so that 3D scanning data of thebottom surfaces of the insoles is obtained; as for establishment of a 3D insole model digital document, and introducing the 3D scanning data of the foot bottoms and the 3D scanning data of the bottomsurfaces of the insoles via 3D Max and netfabb software, so that the 3D insole model digital document is generated; firstly, forming the full-length insoles, then changing the full-length insoles into arch supports, and finally, correcting the arch supports in accordance with a requirement of foot orthopedics, so as to obtain final arch support data; conducting printing via a 3D printing machinein accordance with the arch support data, so that half-finished arch support products are obtained; and conducting fine processing on the half-finished arch support products, so that the finished archsupport insoles are obtained. The 3D printing arch supports are comfortable to wear; adopted materials are reduced and pertinence is enhanced; the arch supports are small in occupied area when placedon the foot bottoms; and the arch supports are more suitable for the patient to wear.