39results about How to "Good strength and stiffness" patented technology

The invention relates to a construction method of a post-pouring strip beam slab template, and is characterized in that the invention comprises the following procedures in sequence: the axial line is rechecked, the beam slab template support is erected, the template of 800 mm-1000 mm width is erected on the both sides of the post-pouring strip, and the reinforcing bar is arranged, the template support becomes an independent system, a concrete beam slab is poured and cured, firstly, the template is removed after the strength of the pouring concrete beam slab reaches the requirement of the template removal, the template on the both sides of the post-pouring strip and the support are not removed, the roughening in the construction joint is cleaned and wetted, the post-pouring strip template is arranged, the epithelium elevation and the smoothness of the pouring strip template after being checked are fixed with the adjacent template at both sides. The invention ensures the wholeness of a post-pouring strip beam slab structure on the both sides, the performance quality of the concrete cast-in-situ at a concrete joint is effectively ensured, in particular to the clean water concrete. Because the method of the invention can not repeatedly remove the post-pouring strip template support system, the mass labor force is saved during the construction, and the construction speed is accelerated, as well as the engineering cost is reduced.

A microelectronic spring contact for making electrical contact between a device and a mating substrate and method of making the same are disclosed. The spring contact has a compliant pad adhered to a substrate of the device and spaced apart from a terminal of the device. The compliant pad has a base adhered to the substrate, and side surfaces extending away from the substrate and tapering to a smaller end area distal from the substrate. A trace extends from the terminal of the device over the compliant pad to its end area. At least a portion of the compliant pad end area is covered by the trace, and a portion of the trace that is over the compliant pad is supported by the compliant pad. A horizontal microelectronic spring contact and method of making the same are also disclosed. The horizontal spring contact has a rigid trace attached at a first end to a terminal of a substrate. The trace is free from attachment at its second end, and extends from the terminal in a direction substantially parallel to a surface of the substrate to the second end. At least a distal portion of the trace extending to the second end is spaced apart from the surface of the substrate. The spaced-apart distal portion is flexible in a plane parallel to the substrate.

The invention provides a thin-wall rectangular-cross-section pipe bending method. The thin-wall rectangular-cross-section pipe bending method comprises the following steps that (1), a conventional pipe bending method is adopted, a thin-wall rectangular-cross-section pipe blank is bent in advance, and a pipe pre-bending piece with folds is obtained; (2), a corresponding shaping die is selected and installed on a pressure bulging pressing machine; (3), the pre-bending piece is installed to the shaping die and is connected with a high-pressure-oil oil way; (4), a high-pressure oil pump is started to eliminate air in the pipe pre-bending pipe, an exhausting hole is sealed, a pipe is filled with oil liquid; (5), pressure is exerted for bulging till the folds of the pipe pre-bending piece are eliminated; (6), pressure is relived, oil is discharged, and die sinking is performed. By means of the method, two types of process technologies are comprehensively utilized, on one hand, the advantage that the conventional bent pipe is easy to form is utilized, the blank is bent in advance in the first place, then the inner-high-pressure forming technology is utilized, high pressure is exerted on the interior of the pipe so that the pipe can be bulged and attached to the die to eliminate the folds, disadvantages of the conventional bent pipe are overcome, a thin-wall rectangular-cross-section pipe bending piece is formed accurately, forming quality and precision are high, the surface is neat and smooth, and the appearance is attractive.

An oriented strand board panel and a method for making the same are provided. The OSB panel has at least three layers, namely, a top surface layer, a core layer, and a bottom surface layer. A first cover layer may be provided on the top surface layer. Likewise, a second cover layer may be provided underneath the bottom surface layer. The first cover layer and/or the second cover layer may have a smaller strand angle, defined by an average deviation of strands from a longitudinal axis, than the top surface layer and the bottom surface layer. The smaller strand angles for the first cover layer and/or the second cover layer provide the OSB panel with greater stiffness and strength along the strong direction of the panel without significant compromise of strength and/or stiffness in the weak direction of the panel.

The present disclosure provides a DRAM cell structure. The DRAM cell structure includes a substrate, a gate structure disposed in the substrate, a source region and a drain region disposed in the substrate respectively at two sides of the gate structure, a landing pad disposed over the drain region, a plurality of carbon nanotubes disposed on the landing pad, a top electrode disposed over the plurality of carbon nanotubes, and a dielectric layer disposed between the top electrode and the plurality of carbon nanotubes.

The invention discloses a kelp shredding cutter. The kelp shredding cutter comprises a driving shaft and a driven shaft in mutual parallel; the driving shaft and the driven shaft are supported on two parallel supports by bearings; multiple round spacers are arranged on the driving shaft; a spacer gasket is arranged between adjacent spacers; multiple spacer gaps are formed at the periphery of each spacer; multiple round blades are arranged on the driven shaft; a blade gasket is arranged between adjacent blades; multiple blade gaps are formed at the periphery of each blade; the multiple blades are right inserted into the spacer gaps of the multiple spacers; an edge is arranged at the periphery of each blade; a check piece is inserted into each blade gap; the end of each check piece is sleeved on a hanging rod; two ends of the hanging rods are connected onto the supports. Compared with the prior art, the kelp shredding cutter has the advantage of capability of cutting thinner kelp silks, the width of each kelp silk achieves 1mm, the shredding speed is fast, the defect that the silks easily wrap a blade shaft is overcome, and the cutter is not deformed after being stressed and is good in strength and rigidity, long in service life, timesaving and laborsaving.

An open cell or highly porous woven composite truss utilizes fibers of carbon, glass, ceramic, or the like that are woven together in a loom. The warps or tow are woven with the wefts, while the fibers are impregnated with resin. The resin impregnation step may be performed before or after the weaving step. The truss is then cured on the loom and later may be machined as needed. A rigid foam material may be used to stabilize the shape of the truss prior to curing and while machining. The foam may be later chemically dissolved or otherwise disposed of.

A faucet pipe body forming device, including a hydraulic pressure generating system, a hydraulic bulging press, and an internal high-pressure forming die. The internal high-pressure forming die includes an upper die and a lower die. Die holes, including short and long end round die holes and vertically arranged manifold circular grooves, long and short end round die holes are installed with left and right push heads for tight sealing, the oil inlet channel of the right push head is connected with the high-pressure oil circuit, and the manifold is round A back pressure piston is installed in the die hole, and the left and right push heads and the back pressure piston are respectively connected with the left and right oil cylinders and the back pressure oil cylinder of the hydraulic bulging press. The method for manufacturing the faucet body includes the steps of: S1 using the internal high pressure forming technology to manufacture the semi-finished faucet body, S2. using the conventional bending process to form the finished faucet body. The design of the device is scientific, and the method of using the forming device to manufacture the complex-shaped faucet body fully utilizes the advantages of the internal high-pressure forming technology and the conventional pipe bending process, which can make the manifold end precisely formed, and the quality of the formed pipe body is good.

The invention discloses a three-way joint for aluminium materials. The three-way joint comprises a first joint, a second joint and a third joint, wherein one end of the second joint is vertically connected with one end of the first joint; one end which is connected with the second joint, of the first joint, is further connected with one end of the third joint, and the third joint is vertical to the first joint and the second joint simultaneously; and the three joints are all made of the aluminium materials, and are integrally formed. A machining method for the three-way joint for the aluminium materials comprises the following steps: step 1, carrying out extrusion forming on an aluminium cast ingot by virtue of a die to obtain an L-shaped blank; step 2, carrying out quenching and ageing treatment on the blank; step 3, carrying out saw cutting the blank to obtain a blank block; and step 4, carrying out milling machining on the blank block to machine the first joint, the second joint and the third joint. The three joints of the three-way joint disclosed by the invention are integrally formed through the aluminium materials, have light weight and high rigidity and strength, and can also be recycled with the aluminium materials.

Provided is a joined body wherein a reinforcing material having at least one layer of each of a random layer, wherein a chopped carbon fiber is randomly oriented in a thermoplastic resin, and a unidirectional material layer, wherein a continuous carbon fiber is disposed unidirectionally arranged within a thermoplastic resin, has been vibration-welded, in a manner so as to produce a hollow closed cross section, to a material to be reinforced that is open cross section and has at least one layer selected from the group consisting of the random layer and the unidirectional material layer.

A modular assembly for creating formwork for casting vertical concrete structures is characterized by elongated, generally concave elements which are disposed in edge to edge relationship in two facing rows, and which are simultaneously retained in edge to edge relationship and in facing relationship by connecting members. The connecting members have spaced ribs allowing the flow of concrete across the plane of the connecting member.

The invention discloses an adjustable support pad stone template. The adjustable support pad stone template comprises a rectangular template and a template adjusting device, wherein the rectangular template is made of square steels; the rectangular template is made by connecting two transverse square steels with two vertical square steels; the transverse square steels and the vertical square steels, which are adjacent to each other, are detachably connected with each other through connecting devices; the template adjusting device comprises angle irons and angle screws which are correspondinglypaired with the square steels; the template adjusting device is movably connected with the rectangular template and used for adjusting elevation of the template and height differences of four cornersof the top surface of the template; and the angle screws are fixed at the four corners of the angle irons. According to the adjustable support pad stone template, it can be guaranteed that the elevation of support pad stone is accurate and the height differences of the four corners of the support pad stone conform to a specified value; and the quality of the support pad stone can be improved.

The invention discloses a slope type caisson breakwater composed of a plurality of slope type caisson bodies arranged lengthways. The top portion of each slope-type caisson body is a caisson body levee crown slope surface rising from the seaside to the port side of the breakwater, the inclination of each caisson body levee crown slope surface is between 1:3 to 1:1, and each caisson body levee crown slope levee crown inclined surface of a caisson body surface is one to 4 times as high as waves. The slopes of slope-type caissons enable waves to break on the slope surfaces, most of wave energy is absorbed and dissipated during moving on slope surface, wave reflection is little, and the breakwater has high stability and good protecting effects. As a breakwater body is made of the slope type reinforced concrete caissons, building materials are saved, construction efficiency is high, manufacturing cost is low, investment is saved and construction period is shortened.

The invention relates to a quick manufacturing process for carbon fiber reinforced paste resin. The quick manufacturing process mainly comprises the following steps of: processing a PS foam board, sequentially performing extrusion-coating on an epoxy paste resin material, a carbon deposition fiber reinforced resin layer and adhesive support, removing the PS foam board to support, position and process a surface, which is separated from the PS foam mould, of the epoxy paste resin material, and performing surface treatment on the processed surface to obtain a final workpiece. Automobile carts manufactured by the quick manufacturing process are short in processing time and are high in processing precision, and processed parts can be modified by many times to meet requirements of a developer. Compared with conventional injection-molding and stamping, the quick manufacturing process greatly shortens development time, reduces cost, and meets physical properties needed, and therefore, a quickand precise process route is provided for developing and repairing automobile part products.

The present invention relates to a new horizontal diesel engine body, especially a horizontal single-cylinder or double-cylinder diesel engine body employing gantry structure, which belongs to field of diesel engine. Wherein, the front end of horizontal gantry single or twin cylinder diesel engine is a cylinder, the back end is a gantry globoidal crankcase, the left end is a flywheel end and related mounting surface, the right end is a gear chamber surface and related accessory mounting surface, the top end is a mounting surface of the gasoline tank, the bottom is an oil pan mounting surface and a cooling water chamber, five oil channels are provided in the engine body, the specific compulsory cooling water chamber is provided outside the cylinder cooling water cover (namely between handspike and oil pan mounting surface) on bottom of engine body, a reinforce rib is provided on engine body. The gantry horizontal diesel engine body employs a gantry type globoidal crankcase, the cover of crankcase and the engine body respectively are single part, the crankcase cover of the engine body and the crankcase are connected at mounting surface of the crankcase cover by a bolt. The present invention has merits of compact structure, good intension and rigidity, high carrying capacity of headstock, good reliability, good cooling efficiency because of cooling water chamber on bottom of engine body, short oil channels, good lubrication efficiency and low cost.

The invention discloses an elevator traction system. The elevator traction system comprises guiding pulleys which are arranged on an elevator lift car frame, an elevator main engine and a counterpoise, and composite steel belts which successively pass through the guiding pulleys, wherein the guiding pulleys are in an integrated structure of a pulley and a bearing main shaft, a guiding groove which is formed in a bearing main shaft is formed in the bearing main shaft, and the guiding groove is a groove with a flat base. On one hand, the elevator traction system solves the problems that the composite steel belts are in line deflection and load carrying capacity is uneven, on the other hand, the elevator traction system further solves the problems of inability to slip caused by an oversize friction coefficient by adopting the composite steel belts with a concave shape and a protruding shape and a rope sheave, so that the elevator traction system is authentically suitable for long term operation of the elevator. The elevator traction system has the advantages of being good in rigidity and intensity by adopting a wheel axle integrated structure, high in safety coefficient, compact in structure, capable of ensuring that an elevator device and an elevator complete machine structure are simplified, thereby reducing occupied space of the elevator device to an elevator well, and effectively saving well space.

The invention provides a combined sectional steel concrete beam. The combined sectional steel concrete beam comprises combined sectional steel, concrete and connecting nodes, wherein reasonable spacing is kept between the combined sectional steel and the outer surface layer of the concrete through configuration; the combined sectional steel and frame beam sectional steel are kept in consistent upper flange top elevation through configuration; the spacing between central axes distributed by secondary beams of the combined sectional steel concrete beam is 2 to 3 times of beam width. Compared with a method of increasing the sectional dimension of a building structure, the combined sectional steel concrete beam provided by the invention has the advantages that the beam height can be well controlled while the structure bearing capacity and the applicability are ensured, and more using space of a building is ensured.