13 results about "Low emittance" patented technology

The invention discloses an infrared invisible clothes design method based on region segmentation and patch size, which comprises the following steps: carrying out region segmentation processing on infrared invisible clothes, and dividing the infrared invisible clothes into a plurality of camouflage splicing units; aiming at different sweating areas of the human body, the camouflage splicing units respectively adopt low-emissivity fabric, medium-emissivity fabric and high-emissivity fabric, the low-emissivity fabric is applied to the areas where the human body sweats much, the medium-emissivity fabric is applied to the areas where the human body sweats moderately, and the high-emissivity fabric is applied to the areas where the human body sweats moderately, and the high-emissivity fabric is applied to the areas where the human body sweats moderately; and designing patch sizes of the low-emissivity fabric, the medium-emissivity fabric and the high-emissivity fabric. Therefore, by applying the image segmentation technology and the patch size design, the problem of region segmentation and background fusion of the infrared invisible clothes under different distances is solved, and the infrared camouflage effect is improved.

The invention provides a method of making an article including steps of providing a solvent on a major surface of a glass sheet and positioning a face of an aerogel sheet onto the major surface of the glass sheet to create a glass-aerogel article, such that the solvent on the major surface of the glass sheet facilitates adhesion of the aerogel sheet to the glass sheet. In some cases, the glass sheet can also have a coated surface comprising a low-emissivity coating.

The invention discloses a reactor vacuum reflective thermal insulation device and nuclear reaction equipment. The reactor vacuum reflection heat insulation device comprises a shell, a reactor core assembly and a heat insulation reflection part, the shell is provided with a containing cavity and a vacuumizing opening, the vacuumizing opening is formed in the side wall of the shell, and the vacuumizing opening is used for vacuumizing the containing cavity; the reactor core assembly is arranged in the accommodating cavity, and a gap is formed between the reactor core assembly and the inner wall of the accommodating cavity; and the heat insulation reflection part is arranged between the reactor core assembly and the inner wall of the accommodating cavity. The low-emissivity and high-reflectivity radiation heat insulation mode of the heat insulation reflection part and the double heat insulation mode of combining the heat insulation reflection part with the vacuum interlayer are utilized, an obvious temperature gradient is formed in a compact space, the temperature of the outer surface of the shell of the pressure-bearing container is effectively reduced, and heat leakage of the reactor core assembly is reduced.

A method for manufacturing low-emissivity easy-clean glass and the resulting low-emissivity easy-clean glass and low-emissivity easy-clean composite glass. The method involves using RF (Radio Frequency) sputtering of a silicon oxide target while simultaneously introducing nitrogen gas, and simultaneously using DC (Direct Current) sputtering of a silver target to co-deposit nitrogen-doped silicon oxide silver (Si, O, N: Ag) on a clear glass substrate. This low-emissivity easy-clean glass can avoid oxidation issues, improve conductivity, hardness, water contact angle, and reduce hemispherical emissivity.

A vacuum insulated glass (VIG) unit, and a window having the same, the VIG unit including paired glass sheets separated by support structures maintaining a gap between the paired glass sheets, a dense edge sealing peripherally arranged creating a sealed cavity between the paired glass sheets, a getter placed in the gap between the glass sheets, where the pressure in the sealed cavity is no higher than 0.001 mbar, where at least one of the first glass sheet and the second glass sheet includes a low-emission coating, where the edge sealing is made from low temperature glass frit powder material, and includes less than 0.1 wt % lead, less than 1 wt % solvent and less than 1 wt % binder, where gaseous inclusions in the edge sealing constitutes less than 5% of the total volume, and where the glass frit powder material includes tellurium oxide and vanadium oxide.

The application provides a composite coating based on ultrahigh-temperature ceramic material and a preparation method and application thereof, and belongs to the technical field of coating materials. The low-emission solar energy absorption coating based on ultrahigh-temperature ceramic material is constructed through scientific and reasonable material design and advanced and precise preparation process, the ultrahigh-temperature ceramic material is innovatively introduced into the solar energy absorption coating system, the performance bottleneck of the traditional coating in the air environment application can be broken through, the high absorption rate, the low emission rate and the excellent thermal stability of the coating in the high-temperature air environment can be realized, and a solid material foundation for efficient and reliable utilization of solar energy in the high-temperature and complex air environment is laid.

A heat-resistant member comprises: a substrate made of isotropic graphite; a single-layered dense low-emissivity layer covering part of surfaces of the substrate; and a single-layered or multi-layered dense high-emissivity layer covering all or part of the remaining surfaces of the substrate. The dense low-emissivity layer has an outermost surface with an emissivity of εA, and has a relative density of 97% or more. The dense high-emissivity layer has an outermost surface with an emissivity of εB (>εA), and has a high-density region with a relative density of 97% or more in any portion between the outermost surface and the interface with the substrate. Preferably, an emissivity difference (εB−εA) is 0.1 or more.

This invention relates to a composite coating with low thermal expansion coefficient and low emissivity, its preparation method, and its application, belonging to the field of functional coating materials technology. The composite coating of this invention sequentially comprises a Si binder layer, a Ta₂O₅ stress buffer layer, and a Pt metal layer. The Si binder layer serves as the binder layer, the Ta₂O₅ stress buffer layer as the low thermal expansion stress buffer layer, and the Pt metal layer as the low emissivity functional layer. The thermal expansion coefficient of Si is 3~4×10⁻⁶. ‑6 / ℃, while the coefficient of thermal expansion of Ta2O5 material is 6~7×10. ‑6 At ℃, the coefficient of thermal expansion of Pt material is 8~9×10⁻⁶. ‑6 / ℃, through gradient coating design, the Pt metal layer can have excellent thermal cycling life and maintain low emissivity performance, which is suitable for substrates with low thermal expansion coefficient, and meets the future requirements of lightweight hot-end components and infrared signal shielding.

A lightweight, multilayer cryogenic insulator is formed by successive layers of low-emissivity sheeting and a separating truss-structure operating to resist circumferential deflection of the low-emissivity sheeting.

Described is a composition tailored in particular for automotive and flat glass applications as a glaze and / or enamel composition. Moreover, the present invention relates to a method of applying the composition on a Low-e coated side of a glass surface, in particular in the field of laminated automotive windshields, sunroofs, backlights produced via press bending process as well as architectural glass. Notably, composition according to the present invention facilitates Low-e coating dissolution and direct fusion to the glass substrate while preserving essential optical properties, and adhesion-meeting industry standards.

A lightweight, multilayer cryogenic insulator is formed by successive layers of low-emissivity sheeting and high elastic modulus mesh, the latter which provide thermal separation of the sheets while resisting high hoop stresses.

This invention provides an optimization method for a magnetic compressor decompression device in an energy recovery accelerator, comprising: sequentially setting first to sixth bends along the beam direction to establish a chicane-structured magnetic compressor decompression device; determining the structure of the reverse-optimized beamline based on the decompression device; establishing constraints for a total deflection angle of 0, an anti-dispersion constraint, and a transfer matrix constraint, and solving the constraint conditions; establishing corresponding criteria with minimizing the slice center shift caused by coherent synchrotron radiation as the optimization objective; optimizing the variables of the reverse-optimized beamline based on the constraints and criteria; and reversing the placement of the reverse-optimized beamline to obtain the decompression device. This invention retains the advantages of conventional chicanes, such as a smaller deflection angle, which prevents over-compression, effectively reducing peak current intensity and helping to suppress slice center shift caused by CSR effects, thereby achieving lower emittance.