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803results about How to "Wide range of use" patented technology

Built-up synergetic class-A/B water extinguishing agent series

The invention discloses a built-up synergetic class-A / B water extinguishing agent series. Class-A fires caused by solid substances (such as woods, cottons, wools, linens, paper) and products thereof and class-B fires caused by liquid or melted solids such as gasoline, kerosene, diesel oil, crude oil, methanol, ethanol, asphalt, paraffin waxes and the like can be put out rapidly through the functions such as heat absorption and cooling, diluting and smothering, insulating and covering, suppressing and blocking combustion chains, and the like which are synergetically performed by various extinguishing functional components, and a high-temperature-resistant thermal-insulation and fire-retarding covering layer is formed on the surface of an inflammable matter by various after-combustion functional components so as to achieve the effect of after-combustion resistance. Because the class A / B fires relate to multiple occasions of daily life and production activities, the extinguishing agent disclosed by the invention can be used in the fields of home fire prevention and extinguishing, urban architecture fire prevention and extinguishing, oil depot and gasoline station fire prevention and extinguishing, vehicle and ship fire prevention and extinguishing, forest and grassland fire prevention and extinguishing, mine fire prevention and extinguishing, confined spaces (such as civil air-defense architectures) fire prevention and extinguishing.
Owner:NANJING UNIV OF SCI & TECH

Deep hole inner wall strain gauge adhering tool for steel rolling sensor

ActiveCN103527588AThe placement of the patch is accurateWide range of useFastening meansBall valveStrain gauge
The invention discloses a deep hole inner wall strain gauge adhering tool for a steel rolling sensor. The deep hole inner wall strain gauge adhering tool for the steel rolling sensor comprises a pipe body and a locating base. The locating base is provided with a ball valve, and a gas connector is arranged at the outer end of the locating base. A plurality of exhaust holes are formed in the side wall of the pipe body, the outer side of the pipe body is sleeved with a silicon rubber sleeve, and the two ends of the silicon rubber sleeve are connected with the outer sides of the two ends of the pipe body in a sealing mode. A silicon rubber inner sleeve is arranged between the inner side of the silicon rubber sleeve and the outer side of the pipe body. A plurality of annular grooves are formed in the outer side surface of the pipe body at intervals in the axial direction, and a plurality of hoop rings are arranged on the outer side surface of the silicon rubber inner sleeve. Accordingly, the deep hole inner wall strain gauge adhering tool for the steel rolling sensor has the advantages that a strain gauge can adhere to the deep hole inner wall accurately, the adhering position is accurate, the strain gauge can be separated from the tool conveniently after adhesion, the pressure on the strain gauge acts on the strain gauge stably and continuously in the adhering process and can be adjusted conveniently, and the strain gauge can adhere to the deep hole inner wall firmly.
Owner:YUYAO TONGYONG METER

Method for manufacturing radio frequency tags with hot and cold stamping technology

The invention discloses a manufacturing method of radio frequency tags, and the radio frequency tags are manufactured with a hot and cold stamping technology; the process method has the steps that: polyvinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), paper, plastics and the like are adopted as base materials, and electro-metal stamping foils are stamped on the base materials by a stamping machine through a hot stamping or cold stamping technology, then waste is discharged from other parts of the metal foils, and antenna patterns are obtained; and if coil antennas are to be manufactured, insulation layers need to be paved on coils, the electro-metal stamping foils are stamped on the insulation layers and are connected with the ends of the antennas to form bridges, i.e. radio frequency antennas. Finally, chips are reversely pasted on the antenna bridges, coated and packaged, and radio frequency tags are obtained. A traditional radio frequency tag process has the disadvantages of too high cost, complicated process, long production time, certain pollution to the environment and the like, and the method for manufacturing radio frequency tags with the hot and cold stamping technology can effectively reduce the radio frequency tag manufacturing cost, simplify the complicated process, and meet the market demand for the low-cost radio frequency tags.
Owner:哈尔滨大东方新材料科技股份有限公司

Flexible spacecraft attitude control method for flywheel saturation and friction characteristics

The invention relates to a flexible spacecraft attitude control method for flywheel saturation and friction characteristics and aims to solve a problem of influence of flywheel saturation and friction characteristics on spacecraft control precision. According to the method, a spacecraft coupling kinetic equation containing flywheel saturation and friction characteristics is firstly constructed; secondly, a friction interference estimator according to flywheel friction characteristics is established; thirdly, a flexible vibration observer is designed according to interference caused by flexible accessory vibration; fourthly, an anti-saturation controller is designed for inhibition according to friction interference estimation errors and flexible vibration interference observation errors; and lastly, through solving control gain of the anti-saturation controller, the friction interference estimator and the flexible vibration observer, a composite layered anti-interference controller is designed, and spacecraft anti-interference attitude control under the action of multi-source interference influence is accomplished. The method is advantaged in that attitude control precision of spacecrafts employing a flywheel execution mechanism can be remarkably improved, and the method can be applied to high precision attitude control on spacecrafts such as high precision earth observation satellites in the aerospace field and space telescopes.
Owner:BEIHANG UNIV
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