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229results about How to "No break" patented technology

Cable tension self-adjustment winch and control method thereof

The invention discloses a cable tension self-adjustment winch and a control method thereof, and belongs to the field of automatic control. The cable tension self-adjustment winch comprises a winding drum and a driving device driving the winding drum to rotate; the driving device is electrically connected with a control device; a winding displacement device parallel to the axial direction of the winding drum is arranged on the outer side of the winding drum; the winding drum is linked with the winding displacement device; a tension detection device is arranged on the winding displacement device, is located between the winding displacement device and the winding drum, and is electrically connected with the control device; and a tension protection device is connected with between the driving device and the winding drum, limits maximum torque output by the driving device and is connected with the control device. Through the measurement on winding and unwinding stressed states and winding and unwinding movement states of a cable and a clutch state of the tension protection device, self-adaption control is carried out on a rotating speed and torque of the winding drum, so that winding and unwinding movement of the cable is coordinated with active movement of a high-speed mobile object, and cable breakage is avoided.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Flexible array substrate and preparation method thereof and flexible display panel

The invention relates to the technical field of display and discloses a flexible array substrate and a preparation method thereof and a flexible display panel. The flexible array substrate comprises aplurality of pixel island regions which are sequentially arranged; flexible areas are arranged between the adjacent pixel island regions; each pixel island region comprises a gate electrode; each flexible area comprises a first elastic layer; each first elastic layer is provided with a first connection line; each first connection line is provided with a second elastic layer; each second elastic layer is provided with a second connection line; a plurality of interlayer through holes are formed in each second elastic layer; an elastic conductive column is arranged in each interlayer through hole; the elastic conductive columns are electrically connected with the first connection lines and the second connection lines separately; and the first connection lines and/or the second connection lines are connected with the gate electrodes of the adjacent pixel island regions. Through the arrangement of the elastic conductive columns and a dual-layer connection electric structure, the flexible array substrate has relatively excellent tensile property in the direction vertical to the flexible array substrate, and good tensile property and bendability of the flexible array substrate are achieved.
Owner:BOE TECH GRP CO LTD

High-tap density micro aluminum powder and method for producing the same

The invention discloses minute silver powder with high tap density and a method for producing the same. The silver powder has the following properties: the average particle diameter of the silver powder is between 0.3 and 1.5 mu m; the tap density of the silver powder is not less than 4.5g/cm<3>; and the contraction rate of the silver powder is less than or equal to 19 percent after the silver powder is sintered at the temperature of less than or equal to 900 DEG C. The production method comprises: (1) preparing a solution containing silver ions for standby; (2) preparing a reducer aqueous solution containing a dispersant for standby; (3) preparing a treatment solution containing a treating agent for standby; (4) mixing and reacting the solution containing the silver ions and the reducer solution containing the dispersant for reducing the silver ions to silver particles; (5) filtering out a reaction solution, and cleaning the silver particles by deionized water; (6) pumping and leaching the cleaned silver powder, putting the cleaned silver powder into the treatment solution for treatment; and subsequently, filtering out the treatment solution; and (7) drying the silver powder in a vacuum oven; and pulverizing the dried silver powder to obtain the minute silver powder with high tap density. Silver slurry prepared from the silver powder is printed on a magnet body or a substrate, is sintered at temperature of less than or equal to 900 DEG C and has good matching property with the magnet body or the substrate. The minute silver powder is suitable for a manufacturer for producing an electronic element.
Owner:贵阳晶华电子材料有限公司

Active amorphous brazing filler metal for brazing ZrB2-SiC ceramic materials, preparation method for active amorphous brazing filler metal and brazing process

The invention discloses active amorphous brazing filler metal for brazing ZrB2-SiC ceramic materials, a preparation method for the active amorphous brazing filler metal and a brazing process, particularly relates to Cu-Ti-Ni-Zr high-temperature active amorphous brazing filler metal for brazing ZrB2-SiC ultra-high-temperature ceramic materials, a preparation method for the Cu-Ti-Ni-Zr high-temperature active amorphous brazing filler metal and a brazing process, and belongs to brazing filler metal in the amorphous and metallurgy fields. The components of the brazing filler metal comprise, by atomic percentage, 36.0-42.0% of Cu, 30.0-35.0% of Ti, 16.0-23.0% of Zr and the balance Ni. The melting temperature of the active amorphous brazing filler metal is 1110-1150 K, and the brazing temperature is 1183-1273 K. The Cu-Ti-Ni-Zr high-temperature active amorphous brazing filler metal obtained through the rapid condensation technology has good wettability. The room temperature shearing strength of the ZrB2-SiC ultra-high-temperature ceramic materials brazed through the amorphous brazing filler metal in a vacuum brazing mode can be as high as 160 MPa and much higher than that of Cu-based and Ag-based brazing filler metal.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE

Preparation method of novel smokeless mosquito-repellent incense

The invention discloses a preparation method of novel smokeless mosquito-repellent incense, belonging to the technical field of preparation of the mosquito-repellent incense. The novel smokeless mosquito-repellent incense is prepared by the steps of preparing sludge carbon powder, preparing paste, molding the paste, drying the molded paste, spraying chemicals onto a dry mosquito-repellent incense blank, and the like. According to the preparation method, sludge carbon is taken as an incendiary agent, and an inorganic substance in the sludge carbon is taken as a flame retardant, so that not only is a new way provided for the resource utilization of the sludge carbon, but mass disafforestation caused by the mosquito-repellent incense industry is also avoided, and the preparation method of the novel smokeless mosquito-repellent incense is beneficial to environmental protection. The novel smokeless mosquito-repellent incense is non-toxic and harmless and can meet the requirement of environmental protection for the product; after the novel smokeless mosquito-repellent incense is burnt and absorbed by the human body, asthma, nerve poisoning and cancers are not caused; the novel smokeless mosquito-repellent incense has a smooth appearance, is free from fracture and mildew spots, and has the breaking-resistant strength of 425-456g and the ignition point time of 8.61-9.01h; in the burning process, smoke is not generated; the novel smokeless mosquito-repellent incense avoids a phenomenon of broken-end flameout when being burnt to an iron-tooth disk.
Owner:庞用

Sectional material manufacturing technique for regenerative plastic doors and windows

The invention relates to a sectional material manufacturing technique for regenerative plastic doors and windows, which has the innovative points that the sectional material manufacturing technique adopts the technical steps as follows: regenerative plastics that adopt polyolefin thermoplastic plastics as main components are taken as main material; a sectional material is prepared through the procedures such as cleaning crushing, granulation, injection mold extrusion formation, stress elimination, planing milling processing, surface coating, and co-extrusion sealing; and the sectional material can be used for manufacturing high-quality doors and windows. The sectional material mainly takes the regenerative plastics made of recovered plastic garbage as the main material, so that the utilization ratio of resources is improved, and environmental protection can be achieved; the sectional material adopts a solid structure that is processed through extrusion moulding, and no shedding, no fracture and no deformation are caused in a cool drop hammer impact test; in addition, aluminum foil layers are arranged on the surface of the sectional material, so that ultraviolet ray resistance, ageing resistance, no fading, no shedding and strong weatherability can be achieved. A non-decorative surface of the sectional material is coated with a high density polyethylene layer, and decorative surfaces of the sectional material are coated with the aluminum foil layers through bonding agents, so that the high density polyethylene layer is formed between the aluminum foil layers of a front decorative surface and a rear decorative surface and is used as a heat blocking layer, and the thermal conductivity coefficient is low.
Owner:南通美特美节能门窗有限公司

Electro-thermal push bar for electronic thermostat of engine

The invention discloses an electro-thermal push bar for an electronic thermostat of an engine, which comprises a push bar body. A heating element is disposed inside the push bar body and comprises a magnesium oxide stick, an electric heating wire and a high-temperature wire, wherein the electric heating wire is wound on the magnesium oxide stick, two ends of the electric heating wire are connected through the high-temperature wire, and the high-temperature wire extends out of the push bar body to be connected with a control power source. The heating element and the push bar inside the electronic thermostat are integrated, so that deformation and even breakage of the heating element under the action of external force is avoided, the service life of the heating element of the electronic thermostat is prolonged, and the engine is guaranteed to operate within a proper temperature range for long. In addition, a conventional sheet heater for the electronic thermostat is changed into a stick heater, and the stick heater compared with the sheet heater has the advantages of no crisping, no deformation and no breakage, is longer in service life and further is simple in structure. Therefore, the internal structure of the electronic thermostat is simpler, and manufacturing cost and difficulty can be reduced.
Owner:乐清市海狮电热电器制造有限公司

Conductive silver paste for fine line laser etching for capacitive type touch screen

The invention relates to conductive silver paste for fine line laser etching for a capacitive type touch screen. The conductive silver paste comprises the following components in parts by weight: 65-80 parts of metal silver powder, 5-10 parts of organic carrier, 3-23 parts of organic solvent, 0.1-1 parts of defoaming agent, 0.1-1 parts of leveling agent, 0.1-1 parts of anti-skinning agent, 0-1 parts of thixotropic agent and 0-1 parts of pigment; the preparation method for the conductive silver paste comprises the steps of mixing the organic carrier and the organic solvent to prepare a uniform colloidal solution; then adding the other components in sequence; and enabling the mixture to be mixed through a mixer, grinded through a three-roll mill, filtered, and the like to obtain the conductive silver paste for fine line laser etching for the capacitive type touch screen. Compared with the prior art, the conductive silver paste is simple in preparation process; the prepared conductive silver paste is low in resistance, high in adhesive force, high in surface hardness, corrosion resistance, and oxidization resistance, wherein the adhesive force between the conductive silver paste and a PET substrate can reach 5B level, and the surface hardness can reach greater than 3H; and therefore, the fine lines on the capacitive type touch screen can be manufactured by a laser etching process.
Owner:SHANGHAI BAOYIN ELECTRONICS MATERIALS CO LTD

Concrete preassembled road high in rupture strength

The invention discloses a concrete preassembled road high in rupture strength. The concrete preassembled road comprises four concrete precast slabs; the two sides of each concrete precast slab are provided with holes used for placing steel strands; adjacent concrete precast slabs are connected via the steel strands; the diameter of the steel strand is 15.50mm; the four sides of each concrete precast slab are provided with the holes used for placing the steel strands, and adjacent concrete precast slabs are connected via the steel strands; one road surface unit is formed from the four concrete precast slabs via the steel strands and steel connecting plates arranged on the outsides of the concrete precast slabs; connecting key structures are arranged between adjacent concrete precast slabs; each connecting key structure comprises a shearing-resistant convex key and a shearing-resistant concave key matching with each other. The concrete preassembled road is convenient for transportation, and rapid and convenient for installation; road slabs can be divided into a plurality of kinds and types according to the ratio of the short edges to the long edges; and the plurality of positioning shearing-resistant connecting keys are arranged on the joint interfaces of the precast slabs so as to ensure that rupture or breakage of the road slabs is not caused under repeated action of overload vehicles.
Owner:郭晓磊 +17
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