1355results about How to "Improve bending ability" patented technology

Microstructured optical fiber and method of making. Glass soot is deposited and then consolidated under conditions which are effective to trap a portion of the consolidation gases in the glass to thereby produce a non-periodic array of voids which may then be used to form a void containing cladding region in an optical fiber. Preferred void producing consolidation gases include nitrogen, argon, CO₂, oxygen, chlorine, CF₄, CO, SO₂ and mixtures thereof.

A raised access floor has panels suspended by pedestals. Each panel may have a top surface and a frame extending around the top surface. Each panel may have extruded aluminum components including four edge members, two intermediate members, and a center member. Each edge member may have a frame portion with a box beam configuration. The frame portions can be press-fitted with corner members to provide the frame. Two edge members, the intermediate members, and the center member may have top surface portions coupled together to form the top surface. The top surface may be supported by support ribs with enlarged bottom ends that resist bending. The ends of the support ribs are press-fitted against the frame. Components may be modified or removed to alter the panel geometry. A cover plate may be used to cover the top surface. The cover plate and/or top surface may be continuous or perforated.

A covering member having a valve encloses a flexible hose to form a double pipe. Gas supply pipe fittings are attached to respective ends of the double pipe to form a hermetic space between the flexible hose and covering member. The covering member also has a pressure-measuring device to which a decision unit equipped with an alarm device is connected. The same gas or liquid as the one flowing through the flexible hose is introduced to the hermetic space from the valve provided in the covering member, and sealed in the hermetic space by closing the valve. The pressure in the hermetic space is set so as to be higher than the pressure produced in the flexible hose when the gas or liquid is flowing. The pressure-measuring device measures the pressure in the hermetic space while the gas or liquid flows in the flexible hose, and the decision unit compares the measured value with a reference value. As a result, if the value measured by the pressure-measuring device is lower than the reference value, the decision unit decides that a breakage has occurred and then the alarm device activates an alarm.

The invention discloses a corrugated double-inner-cavity gas-powered flexible micro finger, a control method and a grabbing system. The corrugated double-inner-cavity gas-powered flexible micro finger comprises a double-inner-cavity gas-powered flexible micro finger body composed of two independent pneumatic half-corrugated hollow rubber tube half-fingers I and II which are symmetrically arranged. A thin sheet type bending tilt angle sensor making contact with the two half-fingers is arranged between the two half-fingers. The two half-fingers are provided with a gas inlet and outlet I and a gas inlet and outlet II respectively. The outer side of the top face of each independent pneumatic half-corrugated hollow rubber tube half-finger is a corrugated surface, the bottom face of each independent pneumatic half-corrugated hollow rubber tube half-finger is a horizontal plane, and the top face and the bottom face of each independent pneumatic half-corrugated hollow rubber tube half-finger are connected into a whole to form a hollow sealing cavity. The bottom faces of the two independent pneumatic half-corrugated hollow rubber tube half-fingers I and II are aligned with each other and then are pasted on the thin sheet type bending tilt angle sensor. The corrugated double-inner-cavity gas-powered flexible micro finger has the advantages of being low in cost, safe in cleaning, easy and convenient to install, good in flexibility, smooth in motion, low in noise and free of pollution, having mechanical performance similar to that of biological muscles, and the like.

A sealable ceiling assembly is provided for use in applications such as clean rooms. The sealable ceiling assembly may include main beams suspended from a support ceiling parallel to each other and cross beams that run perpendicular to the main beams to attach the main beams together. Each cross beam has a bore from which coupling members extend to either side. Each coupling member has a head with a cam surface designed to interlock with a retention slot of the main beam in response to ninety-degree rotation of the coupling member. The coupling members are attached within the bores of the cross beams via set screws that can be rotated after engagement to urge retraction of the coupling members into the bore to tighten engagement of the cross beams with the main beams. Stiffeners may be attached to top nut slots of any of the beams that need reinforcement.

The invention belongs to the technical fields of road paving materials and processing and preparation thereof. A high-RAP-content asphalt mixture formula comprises the following components in percentage by weight: 40-65% of milled waste material, 30-50% of aggregate, 1.5% of mineral powder, 1.5% of ordinary portland cement, 0.3% of polyester fiber or basalt fiber, 2.8-3.9% of substrate asphalt. The content of RAP can be increased to 40-65%.

The invention relates to a novel method for enclosing a deep foundation pit and a slope protection project, such as a multi-storey basement and a subway. A rotary multiaxial borehole pouring concrete occluding pile wall is combined with an internal supporting system or anchor rod to form an integral enclosing structure. The slope protection project can be enclosed by an cantilever pile wall without an internal supporting system and anchor rods inside. An enclosure wall adopting multiaxial borehole pouring concrete occluding piles can be constructed along the foundation pit enclosing axis; because the planes of the stressed multiaxial borehole pouring concrete occluding piles are rotated by 90 DEG at a fixed position, the long edges of the cross sections of the multiaxial borehole pouring concrete occluding piles are perpendicular to the foundation pit enclosing axis, so that the lateral resistant strength and the rigidity of the enclosure wall are improved, and the cost of the project is lowered. Compared with method of using the underground continuous wall for enclosing, the method is easy and rapid to implement with simple construction machines and the enclosure wall with strong rigidity, low manufacturing cost and the like. Calculation shows that the rigidity of the enclosure wall adopting conventional reinforcing steel bars can be improved by about six times, and the resistance to bending can be improved by about 2 times, and the amount of reinforcing steel bars used and the comprehensive manufacturing cost are all reduced by about half.

The invention discloses a prestressed concrete precast pile. The prestressed concrete precast pile comprises a precast pile body with a square cross section, wherein the precast pile body comprises two end plates, a pile body and prestressed reinforcements, the pile body is arranged between the two end plates, and the prestressed reinforcements are arranged in the pipe body and connected with the two end plates; bulge rib which longitudinally extends to an end and a first groove which longitudinally extends and penetrates through the end are arranged on an outer side surface of the precast pile body; and a second groove and a third groove which are corresponding to positions of the bulge rib and the first groove respectively, matched in shape and size and longitudinally extend and penetrate through an end of the precast pile body are formed in one outer side surface which is not adjacent to the outer side surface. According to the prestressed concrete precast pile, the construction is convenient, the engineering cost can be reduced, the water stopping effect is enhanced, and the prestressed concrete precast pile has good bending and shearing resistance.

A fiber optic cable assembly including a mid-span access location, a cable having at least fiber therein, and a tether attached and spliced to at least one fiber of the cable. The access location and portions of the cables are substantially encapsulated within a flexible body having dimensions sufficient to accommodate a slack coil or loop of bend performance optical fiber therein. A method for making a fiber optic cable assembly including an access location, distribution cable, tether and slack coil of optical fiber maintained within a flexible overmolded body while providing an assembly having a cross-sectional diameter less than about 1.25 inches.

A vehicle body structure includes a reinforcing material layer formed of a fiber reinforced resin and a vehicle skeleton member having a closed sectional structure formed of metal. The reinforcing material layer is bonded to a surface of the vehicle skeleton member having a recessed portion recessed toward an inside of the closed sectional structure. An adhesive is disposed at least between the recessed portion and the reinforcing material layer.

The invention belongs to the technical field of vehicle parking, and particularly discloses a side movement type parking system. The system comprises a supporting frame and a bracket used for supporting a vehicle, wherein the supporting frame is pivoted to the bracket, the supporting frame is located below the bracket, and a supporting hydraulic cylinder is arranged between the supporting frame and the bracket; a cylinder tube of the supporting hydraulic cylinder is hinged to the supporting frame, a piston rod of the supporting hydraulic cylinder is hinged to the bracket, and a hydraulic station is arranged on the supporting frame and connected with the supporting hydraulic cylinder through a first hydraulic pipe. The system further comprises a telescopic mechanism, wherein the telescopic mechanism comprises a power part, a telescopic part and a fixed block fixed to the ground, the power part, the telescopic part and the fixed block are sequentially connected, the power part is fixed in the supporting frame, and the supporting frame is located within the projected area of the bracket in the horizontal plane. The system has the advantages of being high in adaptability in a parking lot, and capable of improving the parking rate of the parking lot.

A wooden-structure building beam-column joint structure is provided. In this structure, a wooden column and a wooden beam are connected through a steel connector; the steel connector is formed by perpendicularly welding two steel sheets special in shape; the steel connector can be divided into two parts according to usable functions, namely a cross steel sheet part and a linear steel sheet part; the wooden column and the steel connector are reinforced with engineering adhesive; the wooden beam and the steel connector are fixed with a steel rod. The wooden-structure building beam and column are connected with the steel connector and the engineering adhesive instead of a mortise and tenon structure, the connective strength, bending resistance and tensile capacity of a joint are substantially higher than those of the mortise and tenon structure, and the wooden-structure building beam-column joint structure is particularly suitable for large wooden connections; the wooden-structure building beam-column joint structure is simple in structure, and members of this structure are easy to mechanically produce; the joint is simple to mount, quick to construct and low in manufacturing cost.

The invention discloses an artificial marble of moulded shaped fiber reinforced polymer and making method, which comprises the following parts: 32-46% insaturated polyester resin, 0.2-0.9% hardener, 0.2-1. 4% thickener, 0.6-1. 5% inner stripper, 41-46% fill, 7. 2-11. 9% glass fiber and 4. 8-6. 3% artificial colorful grain, wherein the artificial colorful grain is composed of 32-49% insaturated polyester resin, 0.5-2% methyl-ethyl ketone peroxide, 0.5-2% cobalt isooctanoic acid, 49-60% calcium carbonate and 1-4% dye. The making method of marble comprises the following steps: allocating mould plastic with those raw materials; thickening; moulding; shaping.

The invention discloses a method for processing a rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as a material, belonging to the technical field of thermal treatment. The method comprises the steps of: free forging of a blank, normalizing treatment, rough turning, hardening and tempering thermal treatment, finish turning, spline drawing, drilling, burr gripping, carburization treatment, surface deposition treatment, phosphorylation treatment, electroplating, drying and detection. In the invention, due to the new material and new technology, the wear resistance of the produced rectangular-tooth spline sleeve is greatly enhanced, the phenomenon of crack of the rectangular-tooth spline sleeve is avoided, the surface is smooth, the friction is low, the heat dissipation is good, and the service life is prolonged, thus the processing technology is widely applied.

The invention relates to a tunnel lining rapid repair structure based on a carbon fiber woven mesh and a repair method thereof. The tunnel lining rapid repair structure based on the carbon fiber woven mesh comprises self-propelled hollow grouting anchors, joist steel, the carbon fiber woven mesh, U-shaped hooks and a composite mortar layer. The joist steel is arranged on a tunnel lining to be repaired, one end of each self-propelled hollow grouting anchor stretches into the tunnel lining to be repaired in the radial direction of the tunnel lining to be repaired, the other end of each self-propelled hollow grouting anchor is connected with joist steel, the carbon fiber woven mesh is laid on the inner wall of the tunnel lining to be repaired and connected with the joist steel through the U-shaped hooks, and the composite mortar layer is sprayed on the inner surface of the carbon fiber woven mesh. The tunnel lining rapid repair structure based on the carbon fiber woven mesh and the repair method thereof aims to solve the problems existing in the existing tunnel lining reinforcing technology, the structure is reasonable in design, the mechanical property is good the steps of the method is simple, the operability is high, and the project cost is low.

The invention relates to alumina ceramic powder, alumina ceramic and a preparation method of the alumina ceramic. The alumina ceramic powder comprises components in percentage by mass as follows: 85%-95% of alumina powder, 2%-6% of titanium dioxide powder, 2.5%-8% of magnesia powder and 0.5%-1.5% of nano-ceramic powder which is chromium oxide powder or silicon nitride powder. The alumina ceramic with better bending strength can be prepared from the alumina ceramic powder.

The present invention discloses modern pipe outer anticorrosion spraying method. The pipe outer anticorrosion spraying process includes the following steps: processor-treatment of steel pipe, preheating steel pipe, spraying one layer of thermosol in the thickness of 0.1-0.2 mm, spraying polyethylene layer of 1-5 mm thickness, curing and leveling for 20-35 min, discharging from furnace and cooling. The present invention is suitable for the surface anticorrosion treatment of conveying pipe for petroleum, natural gas, chemical material, etc.

The invention relates to a rock-drilling drill carriage with a foldable arm and an automatic drill rod replacing device, which belongs to the technical field of rock-drilling machinery equipment. A cab is mounted on a rotating platform of a chassis assembly, and the rotating platform is located above a framework platform and can circularly rotate; a control system of the cab is connected with a power and pneumatic control system, and an operating and displaying terminal is a liquid crystal display screen; the extension angle of the foldable arm, the extension quantity of a pushing beam, the rotation angle of the cab and actions of a rock-drilling machine are controlled by the control system; the foldable arm is integrally connected onto a drill carriage platform via an auxiliary arm and an arm folding cylinder, the pushing beam and the foldable arm are mounted in a slide fit manner via a supporting plate on a bracket, the supporting plate is sleeved in a double-side bending structure of the pushing beam, and a telescopic end of an extending cylinder is fixedly connected onto the pushing beam; and the drill rod replacing device is fixed on the pushing beam and located below a transmission rod, and the rock-drilling machine is fixed at the upper end of the pushing beam. System efficiency is high, integral stability is good, and drill rods can be replaced automatically.