829 results about "Structural shapes" patented technology

A structural shape on the surface of an optical substrate is such that the brightness of diffuse light departing from the surface of the optical substrate at certain off axis angles is reduced, at the expense of a small reduction in peak brightness measured near the viewing axis. The net result is an overall increase in useful illumination. A cross section of a prism as the structural shape has a curved sidewall or facet. A material with a relatively high index of refraction combined with a prismatic structure having a modified prism geometry improves brightness.

The invention discloses a magnetic pulse connecting method and a joint structure for thin-wall metal pipelines and provides a safe and high-efficiency magnetic pulse connecting method and a magnetic pulse connecting joint structure for similar and dissimilar thin-wall metal pipelines. A coil-magnetic concentrator composite inductor or a coil inductor is connected with electromagnetic pulse forming equipment so that the pipelines of various metal materials or various structure shapes can be connected in a magnetic pulse way. The transition area of the joint connecting interface is small, the brittle phase or intermetallic compound almost cannot be generated, and the joint almost has no heat affected area and torsion deformation and has high strength and corrosion-resistance property; the tension strength and torsion strength of the joint are respectively higher than those of weak base metal; the subsequent cleaning procedure and post-weld heat treatment are not needed; and the connected pipeline satisfies certain rigidity requirement, cannot be subjected to the plastic deformation in the magnetic pulse connecting process and has high process flexibility.

A container assembly for bulk materials and a kit for assembling same are disclosed. A forming member having a plurality of sidewalls defines an internal cavity for receiving bulk materials. The sidewalls are arranged relative to one another and are locked into position so as to define a geometric volume of predetermined shape, by means of a locking assembly. The locking assembly can be integrally attached to or can be separable from the sidewalls, and can form a bottom of the container assembly. A tubular sleeve of continuous material is sized to snugly engage and overlie substantially the entire outer surface area of the sidewalls. The sleeve provides the containment strength, while the forming member provides structural shape and stability to the container assembly. Additional layers of corrugated material or woven polypropylene material or their combination may be used as inserts engaging the inner peripheral sidewall areas of the forming member to provide additional strength to the container assembly. The forming member sidewalls may be freely slidable relative to one another or may be slidably affixed to one another by releasable glue.

The invention provides a structure and a method for packaging white-light LED devices. The structure mainly comprises an LED chip, a packaging tube shell, packaging silica gel and phosphor gel. The structure is characterized in that the LED chip is pasted in the packaging tube shell; the LED chip is covered and packaged in the packaging tube shell by the packaging silica gel and the phosphor gel; the packaging silica gel is in a lens shape; the packaging tube shell consists of a plurality of packaging single-bodies; the periphery of each packaging single-body is provided with a convex strip or a groove; and the packaging silica gel and a phosphor layer are made into a monolayer or multilayer packaging body through the structural shape of the packaging single-bodies. The invention has the advantages of utilizing the own surface tension of the silica gel and the phosphor layer, limiting the own flowing of the silica gel and the phosphor layer through the structure on the packaging tube shell, forming the packaging body of a lens and the phosphor layer of which the surface shape meets design requirements, reducing cost and improving product quality.

Provided are a nonvolatile memory device and a driving method thereof. In the method of driving a nonvolatile memory device, a structural shape and position of a memory cell to be driven is determined, and then the memory cell is driven with an optimized operating condition according to a distribution of the memory cell using a determination result.

The present invention provides for improvement of ductility and strength performance of connections in structural steel buildings made typically with rolled structural shapes, specifically in bolted and / or welded beam-to-column connections with welded flanges, by greatly reducing the very significant uneven stress distribution found in the conventionally designed connection at the column / beam weld, through use of slots in column and / or beam webs with or without continuity plates in the area of the column between the column flanges, as well as, optionally, extended shear plate connections with additional columns of bolts for the purpose of reducing the stress concentration factor in the center of the flange welds. Moreover, the slots in beam web adjacent to the beam flanges allow the beam web and flange to buckle independently thereby eliminating the degrading of the beam strength caused by lateral-torsional bucking.

The invention relates to a production method of a light-emitting diode, which comprises facilitating the epitaxial layer of the light-emitting diode to start etching from the bottom to form a structural shape whose side is overhung and projected through combining the epitaxial way and the etching way, and leading the epitaxial layer of the light-emitting diode to change into a non-rectangular inclined plane, thereby improving the phenomenon of interface total reflection of the light-emitting diode, and increasing the light sending rate of the light-emitting diode. The invention can reduce production cost owing to simple manufacture, and is suitable to be produced in industrialization.

The invention discloses a method for preparing high temperature titanium alloy by adopting a selective laser melting rapid formation technique. The method comprises the following steps: (1), preparing powder of elements in nominal chemical components of titanium alloy according to the mass proportion of all the elements, then carrying out vacuum induction melting; (2), milling titanium alloy formed by melting by adopting a gas atomization milling method; (3), establishing a part three-dimensional model, and importing the part three-dimensional model into selective laser melting rapid formation equipment; (4), placing powder into the selective laser melting rapid formation equipment, and carrying out part forming on a substrate; (5), separating the formed part from the substrate by adopting a wire cutting process, annealing the part, so as to improve the plasticity and the toughness of titanium alloy; (6), performing a high temperature oxidation test on the part, so as to determine the high temperature oxidation resistance of the novel titanium alloy. According to the method for preparing high temperature titanium alloy by adopting the selective laser melting rapid formation technique, provided by the invention, a high temperature titanium alloy part with a complex structural shape is quickly formed, and the characteristics of rapid manufacturing, accurate manufacturing and reduction of manufacturing cost and the like are achieved.

The invention relates to a conformal active phased array antenna unit. An antenna radiator (1) is provided with a conformal curved thin-wall cavity whose structural shape is matched with a placing environment of an outer slat cavity of an aircraft wing; a transmitting / receiving circuit board is fixedly connected with the inner part of the conformal curved thin-wall cavity of the antenna radiator;the outer radiating surface of the conformal curved thin-wall cavity is provided with a radiating slot (2); the slot cavity of the radiating slot is fixedly connected with a feed mechanism (3); the feed mechanism (3) is connected with a transmitting / receiving circuit (4) and is used for finishing the radiation and the reception of electromagnetic waves; and input and output signals facing to a receiving machine and a power supply interface of the transmitting / receiving circuit (4) are arranged on an interface seat (5) of a back wall plate of the antenna radiator. The structural body of the slot cavity matched with the structural shape of an antenna placing environment is used as an array antenna radiation unit as well as a packaging box of the transmitting / receiving circuit. The inventionsolves the problems of mutual separation, cascaded dispersion, large occupation space, heavy weight, non-compact structure and high manufacturing cost of the antenna radiation unit and a transmitting / receiving assembly in the prior art.

A wedge clamp providing for a positive attachment to structural angles, I-beams, H-beams, T-bars, plates, boards, conventional angles, bulb angles, channels, plates and other similar structural shapes comprises a clamp wedge and body that capture objects with two opposing surfaces securing the objects against each other using a fastener or other means to engage both parts of the clamp to pull the wedge through the body and causing the objects being attached together to be squeezed together. The wedge clamp is also used to support other members using a bolt or threaded rod attached to the wedge clamp which in this case normally attaches to a single flange of the structure.

The invention provides a rigidizable inflatable deployment radial rib brace type offset parabolic reflector antenna, relating to a parabolic antennal. The aim of the invention is for solving problems that the antennal used for satellites of existing mechanical structure has low unfolding or folding efficiency, great weight and high cost, and low unfolding reliability in the folding course caused by complex driving mechanism. One side of a plurality of radial ribbed slabs of the invention are all connected with a central drum and the other side of a plurality of radial ribbed slabs are all connected with an inflatable support ring by a hanging guy. An elastic reflecting surface net is arranged on the lower side of a plurality of radial ribbed slabs and one side of three inflatable support tubes are all connected with the inflatable support ring. The whole antenna is in curling and folding state initially, and the inflatable support tubes are firstly aerated after entering after injection. The invention combines the radial ribs autologous rebound force to unfold the whole reflector structure under unfolding pulling of the inflatable support tubes and the inflatable support ring, and the invention can maintain the structure shape of the antenna without continuous aerating after the inflatable support tubes and the inflatable support ring are completely rigidized and hardened.

A method, apparatus and system for determine a parameter of a structure is disclosed. A fiber optic cable is coupled to a member. The fiber optic cable includes at least a first core helically arranged in the fiber optic cable that includes at least a first sensor and a second sensor. A first measurement related to the parameter is obtained at the first sensor, and a second measurement at the second sensor related to the parameter is obtained at the second sensor. A difference between the first and second measurements is used to determine the parameter.

A transparent rollout pantry organizing system for kitchen cabinets has at least two rollout shelf units that are constructed of planar clear sheet material that is cut and fused together to form a rigid structural shape with shelves having heavy duty drawer guides fastened to the rollout unit which can be extended out of the pantry cabinet so that items can be easily accessed, and having at least one pair of side by side drawers above the rollout units also made of clear material used for the rollout units. By using clear material, items on upper shelves can be seen through the drawer bottoms, and by using the drawers in pairs, items on upper drawers at the rear of the drawer can be easily accessed by extending one drawer at a time and reaching over the sides.

The invention belongs to the technical field of a laser, in particular relates to a single-cavity dual-electrode discharging cavity and a quasimolecule laser adopting the same. The single-cavity dual-electrode discharging cavity comprises a cavity body and two sets of main discharging electrodes, wherein the cavity body comprises a left chamber and a right chamber to form a symmetrical dual-chamber structural shape, the cross section of each chamber is shaped like a pear with small top and large bottom, the left chamber and the right chamber are intersected on a symmetric surface of the entire discharging cavity and communicated with each other, and the two sets of main discharging electrodes are respectively arranged on the upper sides of the left and the right chambers. A dual-cavity function of a master oscillator power amplifier (MOPA), master oscillator power oscillator (MOPO) and master oscillator power regenerative amplifier (MOPRA) structure can be realized, and not only is the complexity of the system reduced, but also the discharging synchronism of the discharging cavity is guaranteed.

The invention belongs to the forming technique of aerospace wall panels, relating to a shape maintenance shot peening strengthening and calibration method for preventing the in-plane bending of a wall panel. The method comprises the following steps of: firstly carrying out regional division on the spare parts of the wall panel, then inputting data in a shot peening device, and finally carrying out shot peening strengthening in a double opposite spraying manner; when in-plane bending occurs for the shot peening, calibrating thin-gauge skins, firstly choosing a calibration region, and then inputting the data into the shot peening device; and carrying out double opposite spraying on the inner and the outer thin-gauge skins in the deformed region with in-plane bending. According to the invention, aiming at the complicated structural shape, shot peening strengthening is carried out on the wall panel under the condition of guaranteeing that the space shapes of the spare parts are not changed after deformation, and the calibration method for forming the in-plane bending after the shot peening strengthening reduces the rejection rate of the spare parts, avoids severe economic lost and has good technological and economic benefits.

The steel box and basket arch bridge constructing process with 500-ton crane boat and full framing includes the following steps: determining the structural shape, rise-to-span ratio, arch rib toe-in angle and arch rib section form; installing the steel box girder support and midspan steel box girder; hoisting side arch and sidespan steel box girder and finally hoisting arch center. During the process, a total station meter and water level gages are adopted for overall process measurement, and jacks in longitudinal, transverse and vertical directions are utilized to locate the arch ribs and the steel box girder precisely, so as to ensure correct structural form and construction safety. At the same time, ANSYS program for calculating the installation profile and sensors for structure and stress control are also utilized. The constructing process is simple and easy to control, and the steel box and basket arch bridge has high typhoon resistance and high efficiency.

The present invention relates to one kind of inflating expanded truss for outer space use. The inflating expanded truss includes at least three inflating expanded pipes and several thermosetting support rods. Each of the inflating expanded pipes consists of one inner lining layer and one outer thermosetting layer. Each of the thermosetting support rods is connected between two inflating expanded pipes. After being launched to preset space orbit, the inflating expanded pipes are inflated and the truss structure is expanded to fixed shape and hot cured via absorbing sun radiation, so as to obtain designed rigid truss. The present invention needs no outer space assembling and has the advantages of small folded volume, high expanding reliability, light weight, etc and thus wide aeronautic and astronautic application foreground.

The invention relates to a positive and negative alternate electrolysis-resistance metal oxide electrode, which is suitable to be used in the field of electrochemical industry, such as high-speed steel plate plating, sea water electrolysis marine biofouling-resistance devices, sodium hypochlorite electrolysis production devices, sewage treatment, cathodic protection and other technical fields of electrochemistry. The positive and negative alternate electrolysis-resistance metal oxide electrode consists of a titanium substrate and a platinum-containing multielement mixed metal oxide coating formed on the titanium substrate by a pyrolytic process or a sol-gel method, wherein the mass percentage purity of the metal titanium substrate is over 99 percent; valve metal titanium has excellent mechanical property and machinability and is suitable for making electrode substrates, and the electrode titanium substrate is netty, platy, tubular or bar structural shapes; the platinum-containing multielement mixed metal oxide coating is IrO2-Ta2O5-PtOx, wherein the mole ratio of the Ir to Ta to Pt is (40-70):(20-40):(1-20); and the metal oxide electrode is obviously improved in positive and negative alternate electrolysis resistance and comprehensive performance, and is simple in structure and long in service life.

The invention relates to a vibrating tray for conveying a workpiece to be processed to automatic mechanical equipment, in particular to a multifunctional adjustable vibrating tray which comprises a top tray, wherein the top tray is mainly composed of a spiral feed channel and a spiral feed channel outer race, characterized in that a workpiece position adjusting processor is arranged on the spiral feed channel of the top tray, the workpiece position adjusting processor is fixedly installed on the spiral feed channel outer race, and the workpiece position adjusting processor comprises a radial adjusting device and a height adjusting device. The invention aims to design a multifunctional adjustable vibrating tray capable of adjusting according to the structural shapes of workpieces, screening the directions of workpieces and conveying in an array, so that one vibrating tray can be used for conveying workpieces of all sizes and various shapes. Compared with the prior art, the manufacturing cost and the automatic mechanical equipment matching cost are reduced, mass production can be realized, the workpieces to be processed are convenient to replace, the operation is convenient and the working efficiency is high.

The invention discloses a repair method for the press roll of a roll press. The repair method comprises the following steps of: on the surface of the press roll, pre-treating the roll surface by carbon arc air explosion, and gouging off the wear-resistant layer of the roll surface; performing a flaw detection by using a dye flaw detection agent to check whether cracks exist, performing a pit excavation treatment on the cracks partially occurring on the roll surface, and filling the excavated pits via manual welding; after determining that the roll surface is qualified, warming the whole press roll to 120-145 DEG C, and surfacing the first backing layer of the roll surface in a manner of open arc welding by using YB-01 welding wires; when the first backing layer is surfaced to a place which is 8 mm away from the radial direction of the standard roll surface by using the YB-01 welding wires, surfacing the second wear-resistant layer by using YB-02 welding wires; surfacing the third special wear-resistant layer by using YB-03 welding wires; surfacing the fourth pattern layer having a structural shape which is an in-line shape, a diamond, a diamond with a point at the centre, a wave shape or a herringbone shape by using the YB-03 welding wires; surfacing the two end surfaces of the press roll by using the YB-02 welding wires; and after the two end surfaces are grinded levelly, surfacing a layer by using the YB-03 welding wires.

The invention relates to a floating press-fitting device which is characterized by comprising a rack, a press-fitting power unit, floating guiding shafts, guiding sleeves, a supporting plate, a power unit mounting plate, a workbench panel, a workpiece clamping device, a clamp table panel, fixing-connecting rods, linear bearings, floating connecting columns, a cross beam, dead stop blocks, a lifting air cylinder, keyway guiding sleeves, keyway guiding rods, a lifting connecting plate, a press head, a floating connecting part, an air cylinder bracket, a locking air cylinder; a locking rod connecting plate, a locking rod and a profiling supporting block. The floating press-fitting device provided by the invention has the advantages that parts of various types and workpieces of various structures can be subjected to stable press-fitting; in the workpiece press-fitting process, uncontrollable factors such as the inclination and the deformation can be avoided, the press-fitting success rate and the press-fitting size stability can be improved, and the press-fitting workpieces can be conveniently taken and placed; during the press-fitting, the press-fitting power unit can be voluntarily regulated in a floating manner along with changes in the press-fitting position, thereby automatically adapting to the workpiece press-fitting state; and accordingly, the press-fitting of products of different structures and shapes can be achieved.

Disclosed are wax emulsion compositions for curing or sealing concrete and cement formulations, methods for preparing and processes for using the same. The modifiers are applicable to curing or sealing membranes, used in roadways, highways, parking lots and other freshly placed or poured concrete surfaces to retain moisture and achieve high compressive strengths. This invention also relates to materials used to coat, spray, brush, roll etc. on conventional Portland cement concrete mix designs or other applied concrete mixes in formed structural shapes and transport road mix designs, providing an effective layer that controls and minimizes moisture loss from the mix to enable proper curing and achievement of desired compressive strengths. The compositions of the invention further provide for concrete and cement formulations having lower water soluble chloride content.

A bowl-shaped container (10a) which is as a biodegradable molded article adheres a coating film (12) mainly made of biodegradable plastic and having at least hydrophobicity to the surface of the main body (11a) of the container mainly made of starch. The main body (11a) is molded through steam expansion of a slurry or dough molding material containing high-amylose starch and water, or a slurry or dough molding material containing starch, polyvinyl alcohol and water. For these reasons, it is possible to accomplish sufficient strength and at least sufficient water resistance, to exert a very excellent biodegradability and further to provide a biodegradable molded article having excellent moisture absorption strength mainly made of starch even if the biodegradable molded article has a complicated shape.