14 results about "Nickel silver" patented technology

The invention relates to the technical field of bar machining, in particular to a nickel-copper-nickel triangular bar machining method which comprises the following steps that S1, a cast ingot is heated to form a triangular bar blank; s2, reducing treatment is carried out; s3, annealing heat treatment; s4, electroplating treatment; and S5, quality detection. Wherein a detection device used in the step S5 comprises a detection platform, a CCD (Charge Coupled Device) camera and a positioning mechanism. The bar is limited and propped through the pre-positioning part and the propping part, so that the three circumferential end faces of the bar face upwards in sequence, the three end faces of the bar are photographed and sampled in sequence through the CCD camera, and the bar quality is detected according to the obtained bar surface image information; according to the detection mode, the problem that the detection quality is affected by fatigue caused by naked eye detection of personnel is avoided, meanwhile, the detection requirement in the batch bar production process is met, it is ensured that the CCD camera is perpendicular to the corresponding shooting end face during shooting, and the accuracy of image collection is improved.

The present application provides a lightweight electromagnetic shielding multi-element metal fabric and a preparation method thereof. The fabric prepared by the present application has a wide frequency band of electromagnetic protection and strong protection effect, and the combination of nickel silver and the base cloth is firm, and has good wear resistance and oxidation resistance, effectively combining the advantages of silver and nickel. The advantages of silver are strong conductivity and good shielding effect, but the disadvantages are poor friction resistance, easy oxidation, fast shielding performance decay with washing or time, high cost, and nickel has the advantages of friction resistance, not easy to oxidize and not easy to decay. The nickel is wrapped outside the silver, which can effectively protect the silver from friction, oxidation and shielding decay. The cost of nickel is relatively low. The multi-element metal fabric prepared has a weight of 65-68g / m 2 , and a comfortable hand feeling, which is not different from ordinary cloth.

A disk with a resistance heating arrangement comprising a plurality of linear heating elements and two opposing conductor elements, wherein the plurality of linear heating elements is arranged between the two opposing conductor elements on the surface of the disk, and wherein the plurality of linear heating elements is designed to be supplied with electrical power via the conductor elements in order to heat, and wherein the plurality of linear heating elements comprises tin, ITO, FTO, nickel silver, an alloy according to DIN 17 470 and / or aluminum-doped zinc oxide.

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.

The utility model relates to a low-cost surface-mounted SIP (Session Initiation Protocol) frequency source module, which comprises a shielding case and a PCB (Printed Circuit Board) substrate, the PCB substrate unit comprises an integrated VCO phase lock circuit, an amplifying circuit, a power supply control circuit and an enabling control direct current bias voltage input terminal; the integrated VCO phase lock circuit is connected with the amplifying circuit; the enabling control direct current bias voltage input terminal is connected with the integrated VCO phase-locked loop circuit and the amplifying circuit through the power supply control circuit unit; the power supply control circuit unit adopts a power supply conversion filter circuit; the power supply conversion filter circuit is respectively connected with an enabling control direct current bias voltage input terminal, an integrated VCO phase lock circuit and an amplifying circuit; surface-mounted installation is realized by adopting a substrate form, low cost is realized by adopting an integrated packaging device, and the surface-mounted LED display screen has the advantages of low cost, surface-mounted type, stability, reliability, convenience in installation, long service life and the like.

The invention relates to the technical field of brazing materials, in particular to silver brazing filler metal and a preparation method thereof. The brazing filler metal of the silver brazing filler metal is in a foil shape containing a plurality of nickel layers or a strip shape containing a plurality of nickel cores; the foil-shaped silver solder comprises a plurality of nickel layers and a plurality of silver alloy layers, the nickel layers and the silver alloy layers are alternately arranged, and the outermost layer is the silver alloy layer; the strip-shaped silver brazing filler metal comprises a plurality of nickel cores and a silver alloy part wrapping the outer sides of the nickel cores. A plurality of nickel layers or a plurality of nickel cores are fixed in a mold cavity at intervals, a multi-layer plate-shaped or multi-nickel-core columnar cast ingot is obtained after the remaining brazing filler metal liquid is cast and demolded, foil-shaped silver brazing filler metal or strip-shaped silver brazing filler metal with the high nickel content can be obtained through a conventional machining mode, the nickel content can reach 20 wt% or above, and the nickel content can reach 20 wt% or above. The problem that the current high-nickel-silver brazing filler metal is difficult to process due to high brittleness is solved; and the silver solder provided by the invention is high in cleanliness, and the shear strength of a soldered joint can be remarkably improved.

Use of a construction for preventing the adhesion of marine organisms, characterized in that a layer of nickel silver is applied to its surface which comes into contact with seawater, the layer consisting, expressed in mass fractions, of the following: Cu: from 63.0% to 67.0% inclusive; Pb: from more than 0 up to and including 0.03%; Fe: from 0 to inclusive 0.25%; Mn: from 0 to and including 0.50%; Ni: from 8.5% to 11.0% inclusive; and the remainder consisting of Zn and unavoidable impurities.

The invention discloses a treatment method for metal product falling on the back of a wafer, which comprises the steps of sheet film pasting, metal deplating, cleaning, drying, grinding, corrosion and re-evaporation, and can be used again after rework treatment of wafers which have metal falling or have metal falling and cannot be used after evaporation. In the treatment process, the cracking rate of thin film pasting can be effectively reduced through secondary film pasting; when the deplating liquid medicine is used for removing nickel and silver, no heat is released, the reaction degree is not violent, the operation is free of risks, the nickel and silver can be removed in a whole batch, the metal layer removing operation efficiency is improved, the product quality is not influenced, and the problems that the metal deplating difficulty is large, the operation risk is large, deplating is not thorough, the back face is floating after deplating, and the deplating efficiency is low are solved; during secondary grinding, only Z2 accurate grinding is used, so that the thickness of the wafer subjected to secondary grinding can be ensured to be within a required range standard, the problem that materials cannot be automatically taken due to warping of the wafer is solved, and meanwhile, a series of problems that the back surface of the wafer is rough due to too small grinding amount and the like are solved.

The invention relates to a nickel silver alloy for use in the manufacture of components for use in the lock and key industry as well as in the jewelry and watch industry, comprising 1 - 30% nickel, 8 - 45% zinc, 0.01 - 1% sulfur, 0.05 - 5% manganese, optionally including one or more further elements totaling 0.001 - 5%, and copper as the remaining portion to total 100%.

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.

The invention relates to a pane comprising a resistance heating arrangement having a plurality of linear heating elements and two opposing conductor elements, wherein the plurality of linear heating elements is arranged on the surface of the pane between the two opposing conductor elements, and wherein the plurality of linear heating elements is designed to be supplied with electrical power via the conductor elements in order to generate heat, and wherein the plurality of linear heating elements comprises tin, ITO, FTO, nickel silver, an alloy in accordance with DIN 17470, and / or aluminium-doped zinc oxide.

The invention relates to a nickel silver alloy for use in the manufacture of components for use in the lock and key industry as well as in the jewelry and watch industry, comprising 1 - 30% nickel, 8 - 45% zinc, 0.01 - 1% sulfur, 0.05 - 5% manganese, optionally including one or more further elements totaling 0.001 - 5%, and copper as the remaining portion to total 100%.

The utility model discloses a high temperature resistant pure nickel silver plated OK wire in the OK wire field, comprising a connector and a wire body, the wire body comprises a nickel core used for realizing electric conduction, the outer surface of the nickel core is electroplated with a silver plated layer, the outer surface of the silver plated layer is wrapped with a high temperature resistant layer, a limiting block is formed in the connector, and the limiting block is arranged in the connector. A limiting block is arranged on the connector, a limiting channel used for installing a wire body is formed between the limiting block and the connector, the limiting block protrudes outwards to form a clamping part, a clamping groove is formed between the clamping part and the limiting block, and a conductive contact block clamped with the clamping groove is arranged in the clamping groove; according to the high-temperature-resistant pure-nickel silver-plated OK line, the conductive contact block is welded with the line body, the conductive contact block is clamped with the clamping groove, and the positioning block is clamped with the clamping groove, so that the stable connection between the line body and the connector is ensured, part of the line body is arranged in the limiting channel, the line body can be prevented from being easily loosened, and the service life of the line body is prolonged. And poor contact caused by loosening is avoided.

The invention provides a lightweight electromagnetic shielding multi-metal fabric and a preparation method thereof. The prepared fabric is wide in electromagnetic protection frequency band and high in protection effect, nickel silver and gray fabric are firmly combined, good wear resistance and oxidation resistance are achieved, the advantages of silver and nickel are powerfully combined, silver has the advantages of being high in conductivity and good in shielding effect, and silver has the defects of being not resistant to friction, prone to oxidation, rapid in shielding effectiveness attenuation along with washing or time and high in cost; nickel is resistant to friction, not prone to oxidation and not prone to attenuation, wraps the silver, can play a good role in protecting the silver from friction, oxidation, attenuation shielding and the like, and is low in cost; the prepared diversified metal cloth has the gram weight of 65-68 g / m < 2 > and comfortable hand feeling, and is not different from common cloth.