174results about How to "Reduce plate thickness" patented technology

A cooling apparatus for a fuel cell assembly includes a heat transfer fluid and at least one fluid flow field plate configured to facilitate essentially passive, two-phase cooling for an membrane electrode assembly (MEA) as the MEA is subject to changes in heat flux to the heat transfer fluid from about 0 W/cm² to about 1.5 W/cm². The flow field plate includes fluid flow channels that have a channel depth, a channel spacing, a channel length, and a channel width, which are dimensioned to promote nucleated boiling of the heat transfer fluid below a critical heat flux and to prevent dryout as the heat transfer fluid passes along the length of the channels. The channels may include coatings and/or features, such as microporous or nanostructured coatings, that extend the critical heat flux and preclude dryout at the distal sections of the fluid flow channels.

The invention discloses a prestressed concrete superimposed sheet with steel trusses and a manufacturing method, and belongs to the technical field of architectural engineering. The prestressed concrete superimposed sheet structurally comprises prefabricated bottom plates, transverse steel bars and a superimposed layer, two sides faces, in the length direction, of each prefabricated bottom plate are inclined faces, a wedge-shaped edge joint is formed between every two adjacent prefabricated bottom plates, the wedge-shaped edge joints are filled with high-strength grouting materials, longitudinal prestress steel bars are distributed in the prefabricated bottom plates in the length direction, and the transverse distribution steel bars are arranged in the width direction. The upper portion of each prefabricated bottom plate is provided with at least one steel truss in the length direction, the transverse steel bars are arranged below the steel trusses in the width direction of the prefabricated bottom plates in a penetrating mode, the prefabricated bottom plates can be connected together, the superimposed layer is poured to the prefabricated bottom plates, and superimposed layer transverse steel bars and superimposed layer longitudinal steel bars are arranged in the superimposed layer. The prestressed concrete superimposed sheet has the advantages of being good in overall stress performance, large in application span, excellent in fireproof effect and high in factory production efficiency, enabling site operation to be easy and convenient and the like.

A hot stamped high strength part in which the propagation of cracks which form at the plating layer at the time of hot stamping when hot stamping aluminum plated steel sheet is suppressed and the post painting anticorrosion property is excellent even without adding special ingredient elements which suppress formation of cracks in an aluminum plating layer is provided.

A hot stamped high strength part which is excellent in post painting anticorrosion property, which hot stamped high strength part has an alloy plating layer which includes an Al—Fe intermetallic compound phase on the surface of the steel sheet, wherein the alloy plating layer is comprised from phases of a plurality of intermetallic compounds, a mean linear intercept length of crystal grains of a phase containing Al: 40 to 65 mass % among the phases of the plurality of intermetallic compounds is 3 to 20 μm, an average value of thickness of the Al—Fe alloy plating layer is 10 to 50 μm, and a ratio of the average value of thickness to the standard deviation of thickness of the Al—Fe alloy plating layer satisfies the following relationship:

0<standard deviation of thickness/average value of thickness≦0.15.

An osteosynthesis plate is described, which is suitable for treating jaw fractures. The osteosynthesis plate has a plane of the plate as well as two plate sections 12, 14 with associated longitudinal axes 16, 18 extending substantially within the plane of the plate and inclined or staggered with respect to one another. Through openings 20, 22 inclined to the plane of the plate are formed in each of the two plate sections 12, 14. The angular alignments of the through openings 20, 22 within the plane of the plate differ with respect to a longitudinal axis 16 serving as reference line from one another by less than approximately 60°. In applications in the jaw region this slight deviation of the angular alignments permits an intraoral securement of the osteosynthesis plate. A transbuccal access through the cheek can thus be dispensed with.

The invention relates to the field of fabricated type concrete buildings, in particular to a concrete composite slab floorslab with a shear key, a prefabricated construction and a construction method. The produced concrete composite slab floorslab can be used as a floorslab applied in the fabricated type concrete buildings. The concrete composite slab floorslab is composed of a prefabricated reinforced concrete base plate, a prefabricated concrete shear key and a cast-in-place reinforced concrete layer. The section of the prefabricated concrete shear key is designed to be in a lying-H shape, or a ring shape, or a hexagon shape or other shapes which can play a role in shearing resistance. One end of the prefabricated concrete shear key is embedded in the prefabricated reinforced concrete base plate, and the other end of the prefabricated concrete shear key is embedded in the cast-in-place reinforced concrete layer. When the cast-in-place reinforced concrete layer is made, concrete is poured to the top portion or above the top portion of the shear key. The shear key is used to connect the prefabricated reinforced concrete base plate and the cast-in-place reinforced concrete layer to form the whole floorslab, and the prefabricated concrete shear key is used to bear a shearing force and a tensile force between the prefabricated reinforced concrete base plate and the cast-in-place reinforced concrete layer. By means of the concrete composite slab floorslab with the shear key, using amount of steel bars used to connect the prefabricated reinforced concrete base plate and the cast-in-place reinforced concrete layer can be effectively reduced, and thickness of the concrete composite slab floorslab is reduced.

The invention discloses a prestressed concrete two-way laminated slab and a manufacturing method thereof, which belong to the technical field of construction engineering. Its structure includes a prefabricated bottom plate, a laminated layer and a steel truss. The trusses are connected, and the laminated layer transverse steel bars and laminated layer longitudinal steel bars are arranged inside the laminated layer. The laminated layer longitudinal steel bars are fixed on the upper surface of the steel truss. The transverse prestressed reinforcement is arranged at equal intervals, the longitudinal prestressed reinforcement is arranged at equal intervals along the length direction, the longitudinal prestressed reinforcement is located above the transverse prestressed reinforcement, and multiple steel trusses are arranged at equal intervals along the width direction on the upper part of the prefabricated floor. The invention also discloses a manufacturing method of the laminated board. The invention has the characteristics of high overall rigidity of the laminated slab, good force bearing performance, two-way force transmission mechanism, no joints on the prefabricated bottom plate, reduced on-site support and formwork consumption, and improved construction speed and the like.

The invention concerns a tibial prosthetic component comprising a plate (100) for forming a tibial plateau of a tibia (16), wherein a peripheral region of the plate (100) has a thickness of less than 3 mm. The invention also concerns a tibial prosthetic component having a keel of depth less than 9 mm. The invention also concerns a method of selecting a tibial prosthetic component comprising receiving measurements of at least one physical attribute of an individual into whom the tibial prosthetic component is to be implanted, selecting a thickness of a plate (100) and depth of keel of the tibial prosthetic component based on the measurements and providing a tibial prosthetic component comprising a plate (100) having the selected thickness and a keel having the selected depth. The invention may also comprise implanting a tibial prosthetic component selected in accordance with this method into an individual and a kit comprising a plurality of prosthetic components comprising plates having different thicknesses with keels of different depths.

An ink-jet head includes a channel unit in which two sets of a manifold and five pressure chambers adjacent to the manifold are formed, a vibration plate which is provided on an upper surface of the channel unit, a piezoelectric layer which is provided on an upper surface of the vibration plate, and a piezoelectric actuator which includes individual electrodes provided on an upper surface of the piezoelectric layer, corresponding to the pressure chambers. The vibration plate is arranged such that the vibration plate covers 10 pressure chambers and two manifolds, and on a lower surface of the vibration plate, in an area overlapping with the two manifolds, a recess having a cross-sectional shape of a taper is formed. Due to the recess, a pressure wave which is propagated to the manifold can be attenuated assuredly.

Opposite ends of a torsion beam are connected to left and right trailing arms, and a spindle which supports a wheel is secured to a spindle support plate which is welded to each of the left and right trailing arms. Bent flanges which are formed in the outer periphery of a body of the spindle support plate, are fitted to the outer periphery of the end of trailing arm and secured by welding. With this arrangement, thermal warp of the body of the spindle support plate which supports spindle can be prevented, and not only can the mounting precision of the spindle be improved, but also the thickness of the spindle support plate can be reduced to reduce the weight.

A vehicle body structure having a firewall is disclosed. The firewall has a board body made from an aluminum alloy. Steel left and right housing curved parts which may be readily press molded, and which constitute rear parts of left and right wheel housings, are attached to the left and right sides of the board body.

The present disclosure provides a lightweight steel-coarse aggregate reactive powder concrete composite beam structure which comprises a plurality of segments, each segment comprising: a steel box girder comprising a bottom plate, a plurality of steel box girder webs and a plurality of steel box girder diaphragms. A coarse aggregate reactive powder concrete bridge deck comprises a plurality of precast bridge decks, a longitudinal wet joint and a transverse wet joint. A plurality of T-shaped pre-embedded steel plates are arranged on the bottom surface of the pre-fabricated bridge deck, the webplate thereof is connected with the steel box girder cross diaphragm plate, the top surface of the T-shaped pre-embedded steel plate is welded with a shear connector, and the shear connector is pre-embedded in the pre-fabricated bridge deck, so that the T-shaped pre-embedded steel plate and the pre-fabricated bridge deck form an integral whole. The invention can improve the mechanical performanceof the steel-concrete composite beam, enlarge the applicable span and scope, improve the construction speed and process quality of the bridge engineering, and overcome the problems of self-weight of the traditional steel-concrete composite beam and easy cracking of the bridge deck without reducing the mechanical performance of the concrete bridge deck.

When an object to be heated is heated without temperature nonuniformity in its heated surface, unwanted thermal deformation can be suppressed, and thermal processing precision can be improved. For this purpose, a heat transfer plate for heating a plate-like object to be heated, and a base plate are stacked. A rod heater as a heat source is inserted in the heat transfer plate. The heat transfer plate has a larger thermal conductivity and smaller creep than the base plate.

A child seat attachment structure comprising a lower anchor comprising a fixing portion that is fixed to a configuration member configuring a vehicle body or a vehicle seat, a leg portion that extends from the fixing portion towards a vehicle top side, and a coupling portion that is provided at an upper end portion of the leg portion and that fixes a child seat to the vehicle body or the vehicle seat by connecting to a connector of the child seat; and a contacted portion that restricts displacement of the coupling portion of the lower anchor towards a vehicle front side with respect to the fixing portion by making contact with a portion of the lower anchor when the child seat fixed to the vehicle body or the vehicle seat has moved towards the vehicle front side.

The invention relates to a basement-roof-post-pouring-belt pre-closing structure. The basement-roof-post-pouring-belt pre-closing structure comprises a basement-roof-post-pouring-belt pre-closing lateral model structure, a basement-roof-post-pouring-belt pre-closing flush-type prefabricated plate structure and a basement-roof-post-pouring-belt pre-closing suspending-model jacking pouring structure; the basement-roof-post-pouring-belt pre-closing lateral model structure comprises comb-type lattice-type skeletons, expanded steel diamond meshes, steel wire dense meshes, vertical reinforced steelplates, water-stopping steel plates, horizontal supporting rods, slant iron wire support rib pulling rods and straight thread sleeves; the basement-roof-post-pouring-belt pre-closing flush-type prefabricated plate structure comprises post-pouring-belt main ribs, an upper ribbed prefabricated plate, foam plates, connecting threaded rods, deformation adjusting gaskets and hauling threaded rods. Thebasement-roof-post-pouring-belt pre-closing structure has the advantages that accurate positioning and fixing of the comb-type lattice-type skeletons, the expanded steel diamond meshes, the steel wiredense meshes, the vertical reinforced steel plates and the water-stopping steel plates are achieved, and meanwhile the horizontal supporting rods and the slant iron wire support rib pulling rods aremore easily arranged.

In a miniaturized liquid crystal display device, a thickness of the liquid crystal display device is decreased and the occurrence of cracks is prevented. A portion of a TFT substrate to which a lower polarizer is adhered has a small thickness, and a periphery of the TFT substrate including a terminal portion has a large thickness. A portion of a counter substrate to which an upper polarizer is adhered has a small thickness, and a periphery of the counter substrate except for one side which forms a U shape has a large thickness. Accordingly, in adhering the upper polarizer to the counter substrate, it is possible to decrease a possibility that a foreign material is entangled. By applying chemical polishing to edge portions of the TFT substrate and edge portions of the counter substrate, the edge portions are rounded and hence, the probability of occurrence of cracks caused by an impact or the like from the outside can be decreased.

The invention discloses a precast prestresed-concrete beam-type stair and a making construction method, and belongs to the technical field of constructional engineering. The precast prestresed-concrete beam-type stair structurally comprises a beam-type stair body, an upper stair beam and a lower stair beam, wherein the upper stair beam and the lower stair beam are used for supporting the beam-typestair body; the beam-type stair body comprises a stair-section slant beam and ladder-shaped steps, the stair-section slant beam is arranged in the length direction of the beam-type stair body, the two ends of the steps are supported on the stair-section slant beam, the two ends of beam-type stair body are connected with the upper stair beam and the lower stair beam respectively, a prestresed reinforcing steel bar is arranged at the lower portion of the stair-section slant beam in the length direction, an upper common reinforcing steel bar is arranged at the upper portion of the stair-sectionslant beam in the length direction, stirrups are arranged outside the prestresed reinforcing steel bar and the upper common reinforcing steel bar in the length direction at equal intervals, the prestresed reinforcing steel bar and the upper common reinforcing steel bar are located in the stirrups, and step distribution reinforcing steel bars are arranged in the steps. The precast prestresed-concrete beam-type stair and the making construction method have the advantages of being large in application span, good in crack resistance, light in self weight, convenient to hoist and transport, excellent in earthquake resistance and the like.

A shunt resistance type current sensor includes a bus bar, a circuit board disposed to oppose the bus bar, a shunt resistance part in the bus bar, connection terminals which electrically connect the bus bar and the circuit board, and a voltage detector which is mounted on the circuit board and detects a voltage applied to the bus bar to detect a magnitude of current to be measured flowing through the bus bar. The connection terminal is formed integrally with the bus bar as an extending piece extended from an edge part of the bus bar, an area of the connection terminal reduced in its plate thickness than that of the bus bar is set in a range from a tip side thereof, and the tip side of the connection terminal penetrates the circuit board and connects with the circuit board.

The invention relates to an HMA/CC (Hot-Mix Asphalt)/(Cement Concrete) composite type pavement structure and a constructing method thereof. The composite type pavement structure comprises a roadbed layer, wherein an emulsified asphalt dilute slurry seal layer, a cement concrete slab layer, a clamped rib layer and a hot mix asphalt layer are sequentially paved on the roadbed layer. The pavement structure mainly presents the characteristic of rigidness and also has flexibility; the asphalt layer can be used for greatly relieving impacts of vehicles to the pavement board; the clamped rib layer in the structural system has the advantages of small material modulus, high viscosity and good elasticity recovery performance and can be used for better absorbing stress generated by deformation of a cement concrete slab and effectively suppressing the transmission of reflection cracks; and the emulsified asphalt dilute slurry seal layer can be used as a powerful measure of preventive curing, greatly and can improve the waterproofing of the pavement and avoid damages such as pumping, and the like. The structure provided by the invention has the advantages of reasonable structural design, simple construction method and lower construction cost.