318results about How to "Improve load resistance" patented technology

A Schottky photodiode includes a semiconductor layer and a conductive film provided in contact with the semiconductor layer. The conductive film has an aperture and a periodic structure provided around said aperture for producing a resonant state by an excited surface plasmon in a film surface of the conductive film by means of the incident light to the film surface. The photodiode detects near-field light that is generated by at the interface between the conductive film and semiconductor layer the excited surface plasmon. The aperture has a diameter smaller than the wavelength of the incident light.

Invention provides a self latching, object-holding fixture designed to release a held object whenever the object is turned slightly in either direction. Fixture has a shaped housing and the object to be held has a mated opening of a similar matching shape. Placing an object to be held locks the object to the fixture by spring-loaded latching action. The fixture housing covers a fixed spring holding base that is anchored by any suitable means to a support surface. Covering that fixed-position base, except for exposed spring-loaded keeper latches, is a rotatable casing having a pair of spring compression cam surfaces carried by the casing. Using a cam follower action, these cam surfaces selectively cause the spring to collapse in response to the rotation of the casing holding in either direction of casing rotation. As the object / casing is turned slightly, this cam follower / spring collapse action releasably disengages the keepers from the object being held.

The refrigerating machine oil composition of the invention is characterized by containing a mixed base oil which has a kinematic viscosity at 40° C. of 0.11 to 8 mm2 / s and which is composed of a low-viscosity base oil (A) having a kinematic viscosity at 40° C. of 5 mm2 / s or lower, and a high-viscosity base oil (B) having a kinematic viscosity at 40° C. of 20 to 400 mm2 / s, each of the base oil (A) and (B) being composed of at least one species selected from among a mineral oil, a synthetic hydrocarbon compound, an oxygen-containing compound, and a sulfur-containing compound. The refrigerating machine oil composition exhibits enhanced energy saving performance by virtue of its low viscosity, has excellent sealing performance and load resistance, and can be employed in various refrigeration means, particularly suitably in a closed-type refrigerator.

The invention relates to a polymethylmethacrylate waterproof paint and a preparation method thereof. The waterproof paint consists of components A and B, wherein the component A is a methacrylic acid resin liquid generated by reaction based on methyl methacrylate (MMA) utilized as a main composition, and the component B is an initiator. When the component A is prepared, a hard monomer, a soft monomer and a cross-linking monomer are put in a reaction kettle and evenly stirred, and then heating is carried out; polymethylmethacrylate moulding plastic is put, and then reaction is carried out for 1-6 hours at the temperature of 70-90 DEG C; cooling is carried out until the temperature is 50-65 DEG C, a polymerization inhibitor, an accelerator, sealing wax and a thixotropic agent are added and evenly stirred; and cooling is carried out until the temperature is 30-45 DEG C, and filtration and packaging are carried out so as to prepare the component A resin liquid. The components A and B are evenly stirred and mixed in a proper proportion, then coated, and finally solidified into a film. The waterproof paint has the characteristics of good strength, good elasticity, low temperature hardness, excellent weather resistance and the like, is simple and convenient for construction, can be solidified rapidly, and can be used for waterproof work of rapid transit railway bridge surfaces and super highway subgrades.

A post anchoring device for anchoring posts used in fence, deck, balcony and railing applications to a surface, the device comprising a base member capable of being connected to the surface, and an elongate, preferably cylindrical, tubular member having a base end and a terminal end, the base end being connected to the base member and the terminal end being remote from the base member such that the post may be impaled upon the tubular member by a user. The walls of the tubular member at the terminal end may be beveled to provide a cutting edge for cutting into the post to facilitate the impalement of the post. The base member may include a peripheral flange with a peripheral edge for abutting the end of the post thereby defining a cavity in which fasteners or other hardware may be concealed from sight for an aesthetically pleasing result.

A structural system comprised of prefabricated deck units spaced along longitudinal load-carrying members, which produce longitudinal axial compression in deck units by tensioning the longitudinal load-carrying members without the use of standard post-tensioning details. During construction, prefabricated deck units are erected on top of and supported by the longitudinal load-carrying members via leveling devices, which also permit relative motion between the longitudinal load-carrying members and the prefabricated deck units. Jacking apparatuses are used to introduce deck compression by jacking against the longitudinal load-carrying members. This system can be used for new structures and for deck replacement of existing structures.

Provided is a polyamide resin composition which can provide an expanded molding being superior in heat resistance and sufficiently reduced in weight and having high load resistance by a simple molding process. The polyamide resin composition is characterized by comprising a polyamide resin (A), a glycidyl-group-containing styrene copolymer (B) having two or more glycidyl groups per molecule, a weight average molecular weight of 4000 to 25000 and an epoxy value of 400 to 2500 Eq / 1×106 g and an inorganic reinforcing material (C) in a proportion such that the content of the glycidyl-group-containing styrene copolymer (B) is 0.2 to 25 parts by mass and the content of the inorganic reinforcing material (C) is 0 to 350 parts by mass relative to 100 parts by mass of the polyamide resin (A).

To prevent a reduction in load resistance of a liquid crystal panel which is caused along with a reduction in thickness thereof, tempered glass is entirely bonded to both of front and back surfaces or one of the surfaces of the liquid crystal panel using an optical adhesive, and an amount of warp by which the liquid crystal panel alone is broken due to a pressure is set equal to or larger than that in a case of the tempered glass.

The invention discloses a method for designing a wind machine blade and the wind machine blade which is designed according to the method. The blade comprises a crossbeam (2) and skin (1); and the crossbeam (2) comprises at least one opening (21). The method comprises the following steps of: determining a pneumatic appearance parameter of the blade and a structure parameter of the crossbeam by theconventional method for designing the blade; forming openings on the substance crossbeam by a topological optimization method; primarily determining the design position, number and size of ribs, the material of skin and initial design thickness by optimization calculation; and checking intensity, rigidity and fatigue of the primarily designed blade structure, adjusting and optimizing according toa checking result to ensure that the blade has high structure performance. The openings are formed on the crossbeam, and reinforcement ribs are formed between the crossbeam and the skin, so that the weight of the blade is reduced when the intensity and rigidity of the blade structure are guaranteed, the cost of the blade is reduced, and the loading of the blade can be reduced conveniently.

The invention relates to a lubricating grease composition and a preparation method thereof, in particular to a composition of food-grade lubricating grease and a preparation method thereof. The composition comprises the following components in percentage by weight: 75-86 percent of base oil, 1.0-3.0 percent of benzoic acid, 3.5-6.5 percent of stearic acid, 3.5-7.0 percent of aluminum isopropoxide tripolymer, 0.5-1.5 percent of silicone oil, 1-5 percent of calcium carbonate, 0.2-1.0 percent of antioxidant and 0.5-2.0 percent of antirust agent. The lubricating grease composition has excellent high temperature resistance, water resistance and excellent anti-rust property, is greatly improved in water spray resistance and mechanical stability, and is simple in process and convenient for large-scale industrial production. The lubricating grease can meet the lubricating requirements of mechanical equipment used for meat processing, can processing, beverage processing and the like in the food industry, and is consistent with the safety and sanitation requirements of food-grade lubricants.

The invention discloses a process and a device for the reverse circulation execution of a single rope impact drill, the reverse circulation execution device comprises a percussion drill, a slurry pumping pipe at the hole bottom and a slurry purifier at the hole mouth, the drill bit is composed of a drill bit body and a cutting blade, the drill bit body is composed of a hammer body, corner boards and a base, the upper end of the hammer body is provided with a connecting hold connected with a non-rotating rope, the corner boards are distributed in the same angle axially on the cylindrical or circular-tube-shaped hammer body, the base is composed of coaxial inner base and outer base, which are tube-shaped, the upper surfaces of the two base are in the same plane, the inner base is higher than the outer base, the lower ends of the corner boards are connected with the two bases, the hammer body, the corner plate and the base are integrated by welding, casting or riveting, the lower end of the base is evenly equipped with multiple cutting blades; pile types of various section shapes can be dilled by the drill bit, the reverse circulation process of hole bottom slag pumping is used when drilling, the execution process is fastened, the energy consumption is reduced, the slag is cleaned completely and clearly, the time for cleaning the hole is shortened.

A gear mechanism having extremely less backlash, capable of suppressing the rattling noise of gears, having a large loading resistance in the thrust direction, and capable of transmitting high torque by using the gears transmitting a force by the meshing of the gears with each other in place of the transmission of the force by friction. The gear mechanism is formed by disposing the plurality of spur gears in the meshed state with each other. The screw-like gears (2) and (4) are disposed on the same axis as the spur gears (1) and (3) in the meshed state with each other. The screw-like gears (2) and (4) adjacent to each other are formed in screw shapes having lead angles extending in the reverse directions to each other and equal in angle to each other. The spur gear (1) and the screw-like gear (2) are rotated integrally with each other to transmit its rotation to the spur gear (3) and the screw-like gear (4) adjacent to each other.

A toothed belt is provided that has excellent environment resistance, high load resistance, high stiffness, and achieves high accuracy, light weight, compactness and low noise.A toothed belt is provided with a belt body including a plurality of core wires juxtaposed in the width direction of a rubber portion, a plurality of tooth rubber portions formed on one surface of the belt body, and a tooth cloth covering the surface of the tooth rubber portions. The rubber portion contains dioctyl sebacate and trimellitic acid ester in a mass part ratio of 1:19 to 1:1, the mass percentage of the dioctyl sebacate to the whole quantity of the rubber portion is less than 4 mass %, and the mass percentage of the total quantity of the dioctyl sebacate and the trimellitic acid ester to the whole quantity of the rubber portion is in a range from 4 mass % to 8 mass %.

The invention discloses a container tank body and a processing method thereof. The tank body is arranged in a frame with a square-shaped cross section and comprises a cylindrical main body part, end enclosures arranged at the two ends of the cylindrical main body part and fixedly connected with the cylindrical main body part, and a tank body strengthening device; the cylindrical main body part comprises a plurality of parts with an arc-shaped cross section, the parts are formed by the bending and welding of a same panel, and the cross section of the cylindrical main body part of the tank body is generally arranged between the square-shaped cross section of the frame and an inscribed circle of the square-shaped cross section. The invention also discloses a tank container comprising the tank body. As the cylindrical main body part is made by continuously bending a whole panel, the molding process is simplified so that the cylindrical main body part is only provided with one welding line, thereby remarkably lowering the leakage risk of the container tank body in use and improving the reliability of the container tank body in work; and the structure has quite strong self-anti-load capacity, thereby decreasing the number of the used tank strengthening devices and reducing own weight.

This invention relates to a method for purifying eutrophic water body by using water plant, particularly duck-weed and polycultured with other water plants. The adsorption, absorbing and biochemical reaction of said water plants are used for removing nitrogen, phosphorus and other pollutants. The plants occupies 70-90% of the surface of the water body. This invention has advantages of: simple operation, low management cost, obvious treatment effect, no secondary pollution, the water plants can be harvested as resource, being of a popularized treatment method for eutrophic water body.

The invention relates to an aerodynamic component, in particular a wing, a landing flap, a pitch elevator, a yaw rudder, a fin or tail. The aerodynamic component comprises an outer shell and at least one supporting element supporting said outer shell. A drive unit rotates the supporting element. A supporting region is created between the supporting element and the outer shell. The supporting region transfers deformation forces from the drive unit via the supporting element to the outer shell. The supporting element is designed and configured for changing the distance of the supporting region from a longitudinal plane of the aerodynamic component with a rotation of the supporting element. The outer shell comprises an elastic deformation region. The elastic deformation region is elastically deformed by the deformation forces with a rotation of the supporting element.

In a method to seal / lock a strap (44) including a metal strap (44d) which is fitted at least in the zone of seal with a protective layer (44c), the packing strap is laid in the form of a loop around the package and is held, in particular, clamped, in place before and / or during production of the seal. The seal is implemented on the packing strap (44) by resistance welding and the protective layer (44c) of the packing strap (44) shall be pierced before and / or during production of the seal.

The invention discloses an optimization design method of blades of a horizontal-axis wind turbine based on the topology optimization of the structure, each blade comprises a web plate (3), spar caps (3, 5) and a coating (1), and the design method comprises the following steps: adopting the existing blade design method to determine an aerodynamic shape parameter and the structural parameters of the blades; adopting the topology optimization method to perform opening design on the web plates and the spar caps of the structure; determining the initial design positions, the number and the sizes of openings through optimization calculation; and checking the strength, the rigidity and the fatigue of the structure of the blades obtained by the topology optimization, and further performing structural adjustment according to the check result so as to ensure that the blades have good structural performances. Through the design method of arranging openings on the web plates and the spar caps, the strength, the rigidity and the anti-fatigue performance of the structure of the blades can be kept, the weight of the blades is simultaneously reduced, not only is the cost of the blades reduced, but also the reducing of the loads of the blades is benefited.

The invention provides high-temperature-resistant polytetrafluoroethylene lubricating grease for sealing. The lubricating grease is prepared from, by mass, 30-70% of base oil, 25-55% of thickener, 2-5% of structural stabilizer, 1-5% of tackifier and 1-5% of lubricant. The invention further provides a preparation method of the lubricating grease, polytetrafluoroethylene micro powder serves as the thickener to thicken silicone oil as the base oil, meanwhile a certain amount of the structural stabilizer, the tackifier and the lubricant are added at the same time, and then the lubricating grease is prepared through corresponding preparation processes. The prepared polytetrafluoroethylene lubricating grease has excellent high temperature resistance, good sealing performance, excellent lubricity, adhesion and oxidation resistance, high load, water spraying resistance and other properties, the lubricating grease has no suncrack, oil splitting and hardening phenomena at the high temperature more than 200 DEG C, and has good sealing property, adhesion property and high temperature resistance.

The invention discloses a linear driving device and a controlling and using method of the linear driving device for a solar tracker. The linear driving device comprises an outer tube and a sealing end cover arranged at the end portion of the outer tube. A screw is arranged in the outer tube, one end of the screw is connected with a drive mechanism, a transmission nut in threaded match with the screw is arranged on the screw, and a telescopic rod is arranged between the outer tube and the screw. One end of the telescopic rod is connected with the transmission nut, the other end of the telescopic rod penetrates through the sealing end cover, a sealing assembly is arranged between the telescopic rod and the sealing end cover, and a waterproof oil-proof vent plug is arranged on the outer tube. The linear driving device is mainly used on the solar tracker, corresponding structural design is performed on the aspects of deflection, load resistance and protection of the device according to the using environment of the solar tracker, and the linear driving device applied in the solar tracker is reliable and stable in operation and strong in deflection and load resistance and accordingly improves the tracking accuracy of the solar tracker effectively.

The invention discloses a giant magnetostrictive flap wind turbine blade vibration reduction system and a control method, belonging to the technical field of wind power generation. The invention adopts the technical scheme that the system comprises a giant magnetostrictive flap wind turbine blade, a wind speed measurement laser radar, an embedded vibration control card and an upper computer. The giant magnetostrictive flap wind turbine blade comprises three fiber optic strain sensors and three giant magnetostrictive actuators. The embedded vibration control card comprises an ARM (Advanced RISC Machines) main control chip, an FPGA (Field Programmable Gate Array) circuit, an A / D (Analog to Digital) converter, a first low pass filter, a signal conditioner, a voltage-controlled constant current source, a second low pass filter, a digital to analog converter and a USB (Universal Serial Bus) port. The giant magnetostrictive flap wind turbine blade vibration reduction system and the control method have the beneficial effects that vibration reduction of the wind turbine blade which is provided with flap structures is realized under small amplitude and low frequency, and the antijamming capability of the system is improved.

The invention discloses a high-durability and high-bearing-capacity concrete pipe pile, which is characterized by comprising the following raw material in part by mass: 685 to 760 parts of common silicate cement, 170 to 200 parts of silicon powder with an average particle size of 0.30 mu m and a SiO2 content of more than or equal to 92 percent, 1,100 to 1,190 parts of quartz sand with a particle size between 0.16 to 1.25mm, 13 to 15 parts of superplasticizer, 165 to 190 parts of water, and 90 to 150 parts of copper-plated steel fibers with a diameter between 0.18 and 0.25mm and a length between 11 and 15mm. The preparation process of the pipe pile is to uniformly stir the steel fiber and fine quartz sand and the concrete, silicon powder, water and superplasticizer in turn to obtain a mixture, fill the mixture into a mold, form with vibrating, cure in a steam environment with a temperature between 75 and 95 DEG C and a humidity of not less than 95 percent for 36 to 48 hours and demold. The pipe pile has the advantages of high antifatigue performance and corrosion-resistance performance and small cross section thickness.

There is provided an inductively coupled plasma processing apparatus capable of reducing a RF power loss within a high frequency power supply unit (particularly, a matching unit) and capable of enhancing a plasma generation efficiency. In this inductively coupled plasma processing apparatus, a multiple number of closed-loop secondary circuits 96, 98 independent from each other are formed between a coaxial antenna group 54 and a transformer 68. Further, by varying electrostatic capacitances of variable capacitors 64 and 66, secondary currents I2A and I2B flowing through an inner antenna 58 and an outer antenna 60, respectively, of the coaxial antenna group 54 are independently controlled. Accordingly, it is possible to readily control a plasma density distribution on a semiconductor wafer W in a diametrical direction.

A torque meter enables highly accurate measurement of a torque by detecting only the torque, without being affected by various loads. The torque meter includes an elastic member placed in a power transmission channel and being deformed upon application with a torque being measured, and a means for detecting the torque based on the deformation of the elastic member. The torque member receives a torque being applied to the elastic member, and the load member is provided separately from the torque member, for supporting the load of the elastic member.

A hoisting and lowering driving engagement multi-row chain is disclosed, in which bending of the connecting pins in the chain is suppressed to avoid fatigue failure. Additionally, the load carrying balance in the chain width direction is improved, and contact vibrations and contact noises generated between the chain and the hoisting and lowering sprockets are suppressed. Endurance of the bush in the chain is thereby improved. Bending of connecting pins is avoided by press-fitting bushes, through which connecting pins pass, into intermediate tooth plates. This also improves load carrying balance widthwise. Contact noises and vibrations between the bushes and sprockets are suppressed by providing bushes with a separate sprocket engagement portion having a larger diameter than the press-fitting portion of the bushes.