6 results about "Dodecahedron" patented technology

This invention discloses a dodecahedral Co-C / LDH composite electrode material loaded with bismuth nanoparticles, its preparation method, and its application. The composite material has a dodecahedron formed by a Co-C amorphous carbon layer as the core, an outer NiCoAl-LDH layer, and a surface loaded with Bi nanoparticles, forming a unique three-dimensional core-shell structure. Co-C / NiCoAl-LDH@Bi is assembled as the anode and AC as the cathode. The Co-C / NiCoAl-LDH@Bi / / AC device improves the Cl... ‑ Storage capacity, electrochemical reaction kinetics, and long-term cycling stability expand the application boundaries of LDH materials in the field of high-performance CDI anodes, providing high-performance material support for the practical application of CDI technology in seawater desalination. It is expected to promote the development and implementation of low-cost, large-scale seawater desalination systems and has important industrial application prospects and environmental value.

In percussion instruments, this makes it possible to generate a wider variety of sounds during performance. [Solution] The percussion instrument 10 has 12 plate-like members 110[1]~110[10], 120, 130, each with a regular pentagonal shape, which are assembled at positions corresponding to each face of a regular dodecahedron. Of the 12 plate-like members 110[1]~110[10], 120, 130 that make up the percussion instrument 10, at least one plate-like member 130 is provided with an opening that penetrates in the thickness direction.

The utility model discloses a wooden assembled wisdom toy, including wooden main part, card block and fixed component, the wooden main part is dodecahedron, and every surface of the wooden main part is all seted up recess, card block with recess is matched, and the side of card block is equipped with chamfer, and fixed component is installed in one side of card block, and the card of card block fixed is set in the inside of recess, the utility model discloses through the additional wooden main part, card block and fixed component, can realize the dismounting between card block and wooden main part, and increase the stability that card block assembled placed, and the toy can exercise the dexterity, observation and the cognitive ability to shape of children when playing, and exercise the carefulness and patience of children in the process of playing, can effectively improve the fun of children playing.

The application discloses a machining process of a dodecahedron head bolt, which comprises five core steps of blank pretreatment and copper plating lubrication, high-frequency induction rapid heating, rapid hot upsetting forming and quenching, direct aging heat treatment and thread warm rolling machining in sequence, and is particularly suitable for preparation of a GH6159 high-temperature alloy dodecahedron head bolt. The application solves the problem of adhesion of a hot upsetting die through copper plating lubrication, adopts a high-frequency induction 6-7s rapid heating + ≤4s extremely rapid hot upsetting + normal temperature water cooling quenching process to inhibit grain coarsening, and stably controls the grain size at 5-6 levels. The traditional solid solution + aging process is abandoned, and a 660 DEG C + or - 5 DEG C * 20h direct aging treatment is adopted, so that the tensile strength of the bolt breaks through 1800MPa. The 600 DEG C-610 DEG C preheating stable rolling + rolling oil cooling process fundamentally solves the problems of thread folding and broken tooth. The process has strong coherence and high operability, the prepared bolt meets the use requirements of aerospace and high-end equipment under high-temperature severe working conditions, and is suitable for industrialized batch production.

A method for preparing self-assembled spherical superlattice microcavity from synthetic rhombic dodecahedron nanocrystals, the method comprises the following steps: prolonging annealing time through hot injection method to obtain rhombic dodecahedron CsPbBr3 nanocrystals with good monodispersity, dispersing the nanocrystals in toluene solution after centrifugal separation and purification, dropping appropriate diluted nanocrystal solution on a substrate, slowly evaporating at low temperature, and self-assembling the rhombic dodecahedron nanocrystals in the solution into superlattice with regular morphology structure under the interaction between ligands and ligands and between solvent and ligands. The size of the self-assembled superlattice structure is approximately several hundred nanometers to several microns. The regular rhombic dodecahedron nanocrystals have good application prospect in the field of photocatalysis and display due to their weak size limitation effect and multi-faceted nature; meanwhile, the spherical superlattice has a high packing factor due to the close packing of its structure, and can form a microcavity as an optical feedback surface in combination with the regular geometric morphology of the self-assembled superlattice structure.

This invention discloses an environmentally friendly nanopesticide particle, its preparation method, and its application. The nanopesticide particle is a nanopesticide particle loaded with fluopyram, with a dodecahedral-like structure. The inner layer is a zinc metal-organic framework (ZIF-8), and the outermost layer is a polydopamine membrane (PDA). Fluopyram is not only loaded in the ZIF-8 channels but also present on the PDA membrane, with a particle size of 500-700 nm. The environmentally friendly nanopesticide particle of this invention can be used to prepare environmentally friendly nanopesticide formulations, reducing pesticide dosage, effectively controlling plant fungal diseases, while minimizing harm to non-target organisms (such as fish), thus mitigating the damage to the ecological environment caused by traditional pesticides. This provides technical support for the development of efficient, specific, and environmentally friendly nanopesticides that protect the ecological environment.