6results about How to "Good conformability" patented technology

This application relates to the field of micro-mechanical component manufacturing technology, and discloses a manufacturing process for a worm gear in a humanoid robot's dexterous hand, comprising: S1, preparing a sacrificial layer template with a three-dimensional negative mold and a micro-anchoring structure using photolithography; S2, conformally depositing a functional surface shell using atomic layer deposition (ALD) and forming corresponding prefabricated physical interlocks thereon; S3, depositing an intermediate bonding layer with a material composition gradient; S4, melting a metal material using additive manufacturing to form a structural body, wherein in S4, the high-temperature molten metal undergoes atomic diffusion to form metallurgical bonds when in contact with the intermediate bonding layer, and simultaneously fills into the prefabricated physical interlocks and solidifies to form a micro-mechanical interlock; and S5, removing the sacrificial layer template. This invention achieves a strong bond between the metal substrate and the ceramic shell through the synergistic effect of metallurgical bonding and micro-mechanical interlocks, producing a heterogeneous composite worm gear that is hard on the outside and tough on the inside, and is precisely formed.

The utility model discloses a metasurface unit for conformal design. The metasurface unit comprises a bottom layer, a first dielectric layer and a metal pattern layer which are stacked in sequence, the metal pattern layer comprises a first metal layer, a first active control element and a second active control element; the first metal layer is provided with a first rectangular hollow hole and a second rectangular hollow hole; a first metal patch is arranged in the middle of the first rectangular hollow hole, and a second metal patch is arranged in the middle of the second rectangular hollow hole; the first metal patch is provided with a first conductive through hole, and the second metal patch is provided with a second conductive through hole; the first metal layer also has a third conductive via. The metasurface unit provided by the utility model has relatively high conformal capability and relatively good electromagnetic performance at the same time.

The application discloses a composite lithium-magnesium alloy negative electrode and a preparation and application thereof. After a fluorinated copolymer solution is uniformly loaded on the surface of a three-dimensional conductive framework, the three-dimensional conductive framework is combined with a lithium-magnesium alloy foil in a sandwich arrangement mode, and then the combination is obtained through mechanical rolling. The three-dimensional conductive framework material effectively reduces the size of the local current density, and can also provide sufficient accommodation space for the deposition of metal lithium. The elastic self-adaptive interface rich in LiF formed by using the fluorinated copolymer can accelerate the ion transmission at the interface and maintain the stability in a long cycle process. The lithium-magnesium alloy with the lithium affinity induces the uniform deposition of lithium ions, and the growth of dendrites is inhibited, so that the composite lithium-magnesium alloy negative electrode material with the fluorine-rich lithium elastic self-adaptive interface is constructed.

The application discloses a kind of nanofiber membrane for conformal packaging and preparation method, it belongs to precision instrument packaging material field, wherein, the preparation method of nanofiber membrane includes the following steps: biomass glue is added to first solvent with plant and is stirred, ultrasonic treatment, then is centrifuged and freeze-dried, obtain biomass glue;Polymer matrix material is added to second solvent and is dissolved, then the biomass glue is added and is mixed, obtain spinning precursor liquid;The spinning precursor liquid is electrospun, obtain nanofiber membrane;The nanofiber membrane is exposed in the vapor of crosslinking agent volatilization and carries out crosslinking reaction, obtain crosslinked nanofiber membrane.The crosslinked nanofiber membrane prepared by the application has superfast shrinkage response to water vapor, has the characteristics of high conformability and high adhesion, can meet the demand of modern packaging industry to high efficiency, environmental protection and intelligent, has good application prospect in precision instrument packaging field.

This invention relates to the field of medical device protection, and particularly to a disposable sterile coating, preparation method, and cup-shaped medical device for preventing bloodborne infectious diseases caused by contact between the surface of medical devices and wounds. Before film formation, the coating is a uniformly mixed solution containing the following components: 10-70 parts by weight of prepolymer resin; the prepolymer resin is selected from lactide prepolymer, acrylate prepolymer, polycyclopropane carbonate, polypropylene fumarate, or combinations thereof with a molecular weight of 500-10000 g / mol. The disposable sterile coating of this invention can be photocured within 20-60 seconds to form a uniform protective film, greatly improving the efficiency of medical operations, especially suitable for emergency medical situations. Through liquid dip coating, the coating can perfectly adapt to medical devices of various shapes and sizes, solving the problem that pre-made films cannot adapt to various shapes.

The invention discloses a honeycomb enhanced in-situ foaming polyimide wave-absorbing foam composite material which is prepared by the following steps: S1, adding aromatic dianhydride, aromatic diamine, triethanolamine, a foaming agent, dibutyltin dilaurate, epoxy resin and a hydroxyl chain extender into an organic solvent, uniformly mixing, adding wave-absorbing functional particles, and uniformly dispersing to obtain a component A; taking polymethylene polyphenyl polyisocyanate as a component B, and uniformly mixing the component A and the component B to obtain a polyimide foaming precursor solution; and S2, pouring the polyimide foaming precursor solution into a mold filled with a honeycomb core material, standing at room temperature for 2-6 hours to enable foam to grow in pores of the honeycomb core material in an in-situ confinement manner, then putting a semi-finished product under a vacuum condition for thermal imidization treatment, and demolding after cooling to obtain a target object. According to the method disclosed by the invention, the precursor solution is subjected to in-situ chemical foaming in the honeycomb pores by a one-step method, and the prepared composite material has excellent wave-absorbing property and mechanical property.