3results about How to "Bind firmly" patented technology

The invention provides a Tl-series superconducting thin film and a preparation method thereof, and belongs to the field of superconducting thin film materials. The preparation method of the Tl-series superconducting thin film provided by the invention comprises the following steps: mixing nitrate or acetate of metal, ethylenediaminetetraacetic acid, a water-soluble high-molecular polymer and water to obtain precursor sol; the metals are thallium, barium, calcium and copper; the molar ratio of thallium to barium to calcium to copper to ethylenediamine tetraacetic acid is (2-3): 2: 1: 2: (7-8); coating a substrate with the precursor sol to obtain a precursor film; and carrying out heat treatment on the precursor thin film in an oxygen atmosphere under a closed condition to obtain the Tl-series superconducting thin film. The Tl-series superconducting thin film obtained by the preparation method provided by the invention presents a Tl-2212 phase, no impurity phase is generated, and the critical transition temperature can reach 100K and is close to the Tl-2212 theoretical superconducting transition temperature.

The utility model relates to a modularized binding and fixing device, and belongs to the technical field of modularized binding and fixing of rescue boats. The modularized binding fixator comprises a fixing frame, the inner wall of the fixing frame is rotationally connected with a binding wheel, and the surface of the binding wheel is wound with a binding band; the anti-loosening mechanism comprises a stirring wheel fixedly connected to one end of the binding wheel, the inner wall of the fixing frame is in threaded connection with a screw rod, the surface of the screw rod is in threaded connection with the inner wall of the stirring wheel, the inner wall of the stirring wheel is in sliding connection with a clamping block, and the surface of the clamping block is clamped to the lower end of the inner wall of the screw rod; the threaded rod is installed in the shifting wheel in a threaded mode, then the shifting wheel is locked, the threaded rod is locked through mutual cooperation of the clamping block and the soft cushion, it is guaranteed that the threaded rod is stably installed in the shifting wheel in a threaded mode, then stable locking of the shifting wheel is guaranteed, and therefore it is guaranteed that the bandage is stably bound to the surface of the rescue boat.