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2 results about "Nickel silver" patented technology
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Nickel silver, Maillechort, German silver, Argentan, new silver, nickel brass, albata, alpacca, is a copper alloy with nickel and often zinc. The usual formulation is 60% copper, 20% nickel and 20% zinc. Nickel silver is named due to its silvery appearance, but it contains no elemental silver unless plated. The name "German silver" refers to its development by 19th-century German metalworkers from the Chinese alloy known as paktong (白銅) (cupronickel). All modern, commercially important nickel silvers (such as those standardized under ASTM B122) contain significant amounts of zinc, and are sometimes considered a subset of brass.
Photoelectric composite cable applied to tethered unmanned aerial vehicle
The utility model belongs to cable field provides a kind of photoelectric composite cable applied to tethered unmanned aerial vehicle, comprising: conductor;Insulating layer and sheath layer, insulating layer is two layers in turn cladded in conductor;Sheath layer is extruded in the outer wall of insulating layer;Shielding reinforcing layer, close to sheath layer, shielding reinforcing layer is extruded in sheath layer outside with metal-plated ultrahigh molecular weight polyethylene and kevlar aramid fiber double-layer mixed, with copper nickel silver alloy on the surface of metal-plated ultrahigh molecular weight polyethylene and kevlar aramid fiber outer layer, to realize corrosion and electromagnetic shielding. Compared with prior art, the utility model has the advantages that shielding reinforcing layer is adopted, which is integrated with tensile resistance and shielding, simplifies the structure, effectively reduces the volume and weight of the cable, improves the application efficiency;In combination with the modified flexible TPU outer sheath reinforced by silicon dioxide, the cable performs well in extreme temperature difference and harsh environments such as sand and dust, prolongs the service life and reduces the maintenance cost.
Owner:NINGBO QRUNNING CABLE CO LTD
A high-reliability nickel-silver-plated aluminized ceramic substrate and a preparation method thereof
The application discloses a kind of high reliability nickel silver-plated aluminized ceramic substrates and preparation method, it is related to semiconductor technical field, comprising the following steps: aluminized ceramic substrate surface is pretreated, and then in turn shot peening, chemical nickel plating, sand blasting, nickel activation and chemical silver plating are handled.The application introduces residual stress on the surface of aluminized ceramic substrate by shot peening, improves surface roughness, improves the adhesion of nickel layer and silver layer by sand blasting, nickel activation, and effectively inhibits silver migration by nickel-silver composite coating.Therefore, the reliability of the aluminized ceramic substrate prepared by the application is high, the adhesion of the coating is strong, and the silver migration resistance is good.
Owner:江苏富乐华功率半导体研究院有限公司