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90results about How to "Guaranteed technical effect" patented technology

Chameleonic colored coating steel plate and machining method thereof

The invention discloses a chameleonic colored coating steel plate which comprises a colored coating steel plate baseplate (1) with a colored coating (5) arranged on the surface of at least one side, wherein the colored coating (5) comprises a color masking layer (2) and an angle-dependent discoloring layer (3); the angle-dependent discoloring layer (3) is arranged on the color masking layer (2), and a light interference layer (4) is arranged on the surface of the angle-dependent discoloring layer (3). The machining method of the chameleonic colored coating steel plate comprises the following steps of: (A) uncoiling and butting to obtain a steel plate to be washed; (B) degreasing and washing; (C) carrying out passivating treatment; (D) coating the color masking layer; (E) coating the angle-dependent discoloring layer; and (F) coating the light interference layer. The colored coating steel plate has an angle-dependent discoloring reflection effect on lights with different colors along with the angle change, promotes the grade of the product, expands the anti-counterfeiting purpose and prolongs the service life of the steel plate; and the provided machining method has concise steps, can satisfy the industrial batch production requirements and has no influences on machining occasion environment.
Owner:CHANGSHU HUAYE STEEL STRIP

Microemulsified watered diesel, additive used thereby and preparation process thereof

The invention provides a microemulsified watered diesel additive, which comprises the following components in percentage by weight: 65 to 85 percent of fatty acid, 1 to 10 percent of diethylamine, less than or equal to 15 percent of methanol, 1 to 5 percent of potassium chloride, and 1 to 10 percent of tetrahydrofuran. The microemulsified watered diesel using the additives comprises: additive containing the above components and cetane number improver. The microemulsified watered diesel using the additive comprises the following components in percentage by weight: 50 to 90 percent of diesel, 5 to 30 percent of the microemulsified watered diesel additive, and 5 to 30 percent of water. The method for preparing the microemulsified watered diesel comprises the following steps: preparing the microemulsified watered diesel additive; mixing and stirring 50 to 90 percent of the diesel, 5 to 30 percent of the microemulsified watered diesel additive and 5 to 30 percent of the water until the mixture is transparent at normal temperature to obtain the microemulsified watered diesel. Compared with the prior art, the microemulsified watered diesel has good stability, high heat value, high power, good starting performance and high cetane number, and has expected tremendous economical value and social value.
Owner:张宝臣

Welding wire equalization welding head for multi-welding-spot welding and welding method

ActiveCN104384649AGuaranteed technical effectGuarantee the full expression of technical effectsConductorsMetal working apparatusElectrical conductorEqualization
The invention relates to a welding wire equalization welding head for multi-welding-spot welding and a welding method, which belong to the technical field of a wire and cable welding device. The welding wire equalization welding head comprises a welding head body, and is characterized in that the end surface of one end, facing downwards when in use, of the welding head body is provided with a plurality of conductor accommodating valleys which are identical to the amount of conductors to be welded in one step at intervals along the length direction of the end surface, and a projection area between every two adjacent conductor accommodating valleys respectively forms a welding wire equalization edge for segmenting a welding wire. By adopting the welding wire equalization welding head and the welding method, the welding quality of the conductor and a welding disc can be improved, the welding time is shortened, the welding efficiency is improved, and the welding material is prevented from being scattered when the welding head body is pressed downwards, and the uniformity and consistency of welding spots can be guaranteed; the process step is simple, convenience in operation is realized, and not only can the application in the industry be satisfied, but also the technical effect of the welding head body can be guaranteed.
Owner:HUIZHOU DEHONG TECH CO LTD

Control method and system for suppressing low-frequency oscillation during photovoltaic power generation

The invention relates to a control method and a control system for suppressing low-frequency oscillation during photovoltaic power generation. The control method comprises the following steps: inputting the amplitude value of active power of a grid-connected point of a photovoltaic power station into a pre-established control model of a low-frequency oscillation suppressing device, and calculatinga control output signal value; superposing the control output signal value with a reference value of a reactive power / voltage control loop of a photovoltaic power generating system, and participatingin control of the reactive power / voltage control loop of the photovoltaic power generating system, wherein the pre-established control model of the low-frequency oscillation suppressing device comprises a blocking link, two lead-lag links, a proportional link and an amplitude limiting link. The technical scheme provided by the invention is an additional photovoltaic power generation damping control method for effectively suppressing the low-frequency oscillation of a power system; through the reactive power adjusting margin and the reactive power adjusting capability of the photovoltaic powergenerating system, the low-frequency oscillation is suppressed, so that utilization of the active power by the existing method is avoided and influence on the power generating capability of the photovoltaic system is avoided.
Owner:CHINA ELECTRIC POWER RES INST +3

Uplift pile side post grouting device and construction method

The invention discloses an uplift pile side post grouting device. The uplift pile side post grouting device comprises a plurality of grouting vertical tubes and a plurality of grouting ring tubes withdifferent elevations, wherein the grouting vertical tubes are fixed on the periphery of an uplift pile reinforcement cage; the grouting ring tubes are connected with the grouting vertical tubes and are fixed on the outer sides of the grouting vertical tubes; the bottom ends of each two grouting vertical tubes communicate with one corresponding grouting ring tube; a plurality of slurry outlet nozzles are arranged on each grouting ring tube along the periphery; and each slurry outlet nozzle can be temporarily closed by a closing device which can be flushed away by water pumped in by a water pump. A construction method of the uplift pile side post grouting device comprises the following steps: fixing the prefabricated grouting vertical tubes and the prefabricated grouting ring tubes on a pile body reinforcement cage; temporarily closing the slurry outlet nozzles on the grouting ring tubes by wrapping adhesive tapes or one-way valves, wherein each one-way valve is connected with water-permeable and slurry-tight slurry bags at intervals in a sealed manner; and unplugging the grouting vertical tubes and the grouting ring tubes by high-pressure water and completing pile side post grouting in twice or at a time. By the device and method, post grouting on the side surfaces of the peripheries of uplift piles can be uniformly distributed along the peripheries, grouting is smooth, and theconstruction efficiency is high.
Owner:NINGBO HONGCHEN CONSTR

Wetting ironing method of spinning fiber bundle and PTC ironing device used by same

The invention discloses a wetting ironing method of a spinning fiber bundle and a PTC ironing device used by the wetting ironing method of the spinning fiber bundle, and belongs to the spinning technical field. The method includes the steps of enabling the spinning fiber bundle to pass through and be wetted by, under an advancing condition, a wetting device at a twisting triangular area portion in front of a front leather roller and a front roller of a twisting device which is arranged on and corresponds to a ring spinning frame, controlling the advancing speed of the spinning fiber bundle and water content of the wetted spinning fiber bundle, enabling the wetted spinning fiber bundle to enter the PTC ironing device, installed on the ring spinning frame along with the wetting device, to be ironed after getting out of the wetting device, controlling the ironing temperature of the PTC ironing device, and enabling the spinning fiber bundle which is ironed by the PTC ironing device to be wound on a spool through a winding device of the ring spinning frame to form a spindle. The amount of filoplume is reduced and therefore quality of yarn is improved; filoplume is prevented from being produced, a good and even evenness effect is obtained, the ignition point range of the yarn is avoided, and safety is ensured.
Owner:JIANGSU NEW LINZHI ELECTRONIC TECH CO LTD

Polyurethane composite-type waterproof thermal-insulation decorative board, and production method

The invention discloses a polyurethane composite-type waterproof thermal-insulation decorative board and a production method of the board. The board is the composite board formed by thermal-insulation layer material comprising expanded perlite of inorganic ore material, hollow glass beads, coal ash and serozem, binder comprising high-strength foaming polyurethane, and decorative panel comprising marble, ceramic tile and calcium silicate board with microporous. The production method comprises the following steps: arranging inorganic thermal-insulation material and polyurethane binder raw material into a container according to the proportion, wherein the container is provided with a stirrer, stirring continuously in order to enable the inorganic thermal-insulation material to fully contact the polyurethane, flowing the mixture directly to the back surface of the decorative panel from a discharge, foaming, curing, and molding into a board, cutting and packaging, thereby obtaining the product. The board is low in volume weight, low in coefficient of thermal conductivity, high in compression strength, is fireproof, so that the board is an ideal outer wall thermal-insulation decorative material.
Owner:BEIJING LIGAO WATERPROOF ENG CO LTD +1

Large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer and preparation method thereof

The invention discloses a large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer and a preparation method thereof, and relates to a pavement structure layer consisting of large-grain-diameter rubber block-modified asphalt and fiber together with single-grain-diameter gravels, and a preparation method thereof. The large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer consists of aggregate, fiber and rubber block-modified asphalt. The preparation method comprises the following steps: 1) sweeping, blowing dust and cleaning an underlayer; 2) preparing the rubber block-modified asphalt; 3) preparing the rubber block-modified asphalt mastic; 4) before sprinkling the rubber asphalt mastic, inspecting various indexes; 5) sprinkling the rubber block-modified asphalt mastic; 6) scattering and paving the gravels; 7) performing rolling compaction; 8) sweeping the large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer. The large-grain-diameter rubber block-modified asphalt mastic and gravel sealing layer is low in production cost, low in energy consumption, free of pollution and high in storage stability. The preparation method is convenient in construction, simple and feasible, and can be easily applied to industrial production.
Owner:NANJING TONGAN ROAD ENG +2

Grouting device for controlling settlement of height railroad bed and grouting method

The invention relates to a grouting device for controlling settlement of a height railway roadbed and a grouting method. The grouting device for controlling the settlement of the height railway roadbed comprises a pulping machine, a grouting pipe and a grouting pump, wherein the grouting pipe comprises an inner pipe and an outer pipe which sleeve with each other, the inner pipe and the outer pipe communicate with each other, and grout outlet holes are formed in the outer pipe; meanwhile, the inner pipe and the outer pipe are connected with the grouting pump through a communicating pipe and a circulating pipe correspondingly; meanwhile, the outer pipe further sleeves with an expansion sleeve, and the expansion sleeve is connected with the communicating pipe through an expansion pipe. According to the grouting device for controlling the settlement of the height railway roadbed, slurry is buffered through the design of the inner pipe and the outer pipe, so that the pressure change amplitude of the slurry is reduced; meanwhile, drainage is conducted to the far end of the grouting pipe through adjustment of the hole diameter and the distribution density of the grout outlet holes, and therefore uniform distribution of grout is guaranteed; the grouting pipe is fixed in a mounting hole after the expansion sleeves at the two ends of the grouting pipe are expanded, so that the vibration of the grouting pipe is further reduced, and the grouting quality is improved; an inlet and an outlet of the grout are formed in the top of the grouting pipe, the grouting pipe can be installed at any angle, and the application range of the grouting pipe is expanded.
Owner:CHINA RAILWAY ENG CONSULTING GRP CO LTD
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