35 results about "Sterling silver" patented technology

The present invention is a bracelet having an inner layer and an outer later. The inner layer of the bracelet is copper and the outer layer is another metal, preferably a precious metal such as sterling silver or gold, platinum or titanium. However, any suitable material may be used for the outer layer. Since copper can be absorbed through the skin, a wearer receives the medicinal benefits of copper while wearing a bracelet that is a fine piece of jewelry. In a preferred embodiment, the copper inner layer is a comfort fit layer.

A silver-platinum alloy formulated to provide improved tarnish resistance and hardness as compared to sterling silver. The alloy can be incorporated in various jewelry, flatware, and like articles. The alloy generally includes silver and platinum, with silver being the predominant component. In certain applications, the alloy includes about 90–95.5% silver and about 0.5–6% platinum. A small amount of gallium can also be added to the composition to provide ease of manufacture of the alloy. The resulting alloy has the favorable properties afforded by sterling silver, but also has brighter surface finish, greater tarnish resistance and increased hardness as compared to traditional sterling silver.

Disclosed herein are a pure silver device and a method for diagnosing and treating pain on human body. The pure silver device comprises an elongated handle, a head having both a hammer head and a comb opposed to each other, a panel, and an outwardly extending protrusion on the bottom end of the handle. The pure silver device is used to diagnose and treat pain by finding out pressure pain points on both abdominal area, at which root of pain is located, and a symptomatic area of the human body and then by releasing the pressure pain points by tapping, pressing, rubbing, combing or combining the foregoing. Owing to the highest thermal and electrical conductivity of silver, the pure silver device produces amazingly better stimulation of the pressure pain points. Therefore, the pure silver device is more effectively used for diagnosing and treating pain than other devices made out of any other material, even sterling silver and magnetic material. In addition, the pure silver device is portable and useful in that anyone can diagnose and treat himself or herself anytime and anyplace. The pure silver device and the method are simple, easy, safe without any side effects and medical risks, and economical.

The present invention is related to a novel sterling silver compound for use in vermeil jewelry and other articles of manufacture. The compound includes an alloy composed of at least 92.5% by weight of silver, up to 7.5% by weight of gold, and the remainder in copper. The invention further relates to an article of jewelry including at least 92.5% by weight of silver, up to 7.5% by weight of gold, and the remainder in copper. The invention also relates to a method for making an article. The method includes providing a vessel and adding 3.75% by weight of gold, 94.0% by weight of silver, and 2.25% by weight of copper to the vessel. The method also includes melting the metals and mixing them until a homogenous mixture is formed. The method further includes pouring the homogenous mixture into a mold to form a semi-finished article and plating the semi-finished article with 18K rose gold.

An electro-surgical forceps has a pair of tines. At least one of the tines has an inner core of a metal such as stainless steel, nickel, titanium, aluminum, or alloys such as sterling silver, and an outer plating of copper or a copper alloy having a thermal conductivity and an electrical conductivity greater than the core material. The outer plating covers all or substantially all of the tine. The outer plating is suitably formed by an electroplating process.

The invention provides non-rusting silver alloy. The non-rusting silver alloy comprises, by weight, 90.0-92.5% of silver, 0.5-5% of copper, 0.5-2.0% of zinc, 0.2-1.1% of tin, 1.0-3.0% of indium and 0.1-6% of germanium. The invention further provides a preparation method for the non-rusting silver alloy and the application of the non-rusting silver alloy. According to the non-rusting silver alloy and the preparation method thereof, the compositions are simple and do not contain precious metal and rare metal; the non-rusting silver alloy is suitable for making contact with human body skin; good machinable property is achieved; the non-rusting property of the non-rusting silver alloy is over twice that of Sterling silver, so that the non-rusting silver alloy is suitable for being applied to the industries of jewelries, decorations and the like.

A silver-based alloy composition which is soft and workable in an annealed condition, is hardenable through heat treatment, and is tarnish resistant. The preferred embodiment of the composition of the present invention includes a small percentage of palladium and a reduction from typical percentages of copper found in a sterling silver alloy. In one embodiment the silver-based alloy includes no copper at all.

Titanium sterling silver alloy compositions that exhibit enhanced tarnish resistance while maintaining an acceptable hardness. Applications and manufacturing methods thereof are disclosed.

Fire-scale resistant, work-hardenable-jewelry, silver-alloy compositions having desirable properties of reduced fire scale, reduced porosity, oxide formation and reduced grain size relative to traditional sterling silver alloys while providing improved work hardening performance. These compositions contain at least 86% by weight silver, 0-5-7.5% by weight copper, 0.07-6% by weight of a mixture of zinc an silicon with silicon being present in an amount from about 0.02 to about 2.0% by weight, and from about 0.01 to no more than 2.0% by weight germanium.

A silver-platinum alloy formulated to provide improved tarnish resistance and hardness as compared to sterling silver. The alloy can be incorporated in various jewelry, flatware, and like articles. The alloy generally includes silver and platinum, with silver being the predominant component. In certain applications, the alloy includes about 90-95.5% silver and about 0.5-6% platinum. A small amount of gallium can also be added to the composition to provide ease of manufacture of the alloy. The resulting alloy has the favorable properties afforded by sterling silver, but also has brighter surface finish, greater tarnish resistance and increased hardness as compared to traditional sterling silver.

The invention discloses a silver-lanthanum-calcium alloy bonding wire and a manufacturing method thereof. According to the bonding wire, high sterling silver is used as a main part material, and a lanthanum metal material, a calcium metal material and a gold metal material are included. The bonding wire comprises, by weight, 95-97% of silver, 2-3% of lanthanum, 0.5-1% of calcium and 0.5-1% of gold. The manufacturing method includes the steps that the high sterling silver with the purity being larger than 99.9999% is extracted to be prepared into silver alloy ingots and then to be prepared into cast condition silver-lanthanum-calcium alloy busbars, the alloy busbars are pulled to be wires of about 1 mm, heat treatment is completed, and then precision drawing, heat treatment and washing are conducted so that silver-lanthanum-calcium alloy bonding wires of different specifications can be manufactured.

The invention belongs to the technical field of silver alloy and specifically discloses a silver alloy and a manufacturing technology thereof. The silver alloy comprises the following components in percentage by weight: 92.5% of silver, 0.1-7.0% of copper, 0.1-1.0% of silicon, 0.1-1.0% of zinc, 0.01-0.5% of titanium, and 0.1-0.3% of aluminum. The preparation technology comprises the following steps: mixing the components of the silver alloy to obtain a mixture; smelting the mixture in a vacuum condition to obtain melt; under the protection of an inert atmosphere, pouring the melt into an alloysheet ingot; and sequentially performing homogenization heat treatment, re-annealing treatment and hardening heat treatment on the alloy sheet ingot, to obtain the silver alloy. The silver alloy disclosed by the invention is at least twice stronger than sterling silver in the ability of resisting vulcanization blackening, and has relatively strong as-cast hardness and high-temperature oxidation resistance and high processability; and moreover, the hardness reaches 150HV or above and reaches the hardness of stainless steel.

The invention relates to a silver ornament alloy, particularly relates to the silver ornament alloy taking silver as a main component, and belongs to the technical field of non-ferrous metal. The silver ornament alloy taking silver as the main component is prepared by taking the following components by weight part: 93-95 parts of silver, 2-4 parts of copper, 1-3 parts of titanium and 1-3 parts of chromium, wherein the purities of all the components are 99.9%-99.99%. The silver ornament alloy is prepared according to the following steps of: weighting the raw materials by weight part of all components; placing the components into a vacuum furnace in turn; melting in a vacuum electric arc furnace with the vacuum degree at 0-5Pa and the temperature at 1860-1890 DEG C; keeping the temperature for 1 hour, and then uniformly stirring; pouring and placing into a mould; and cooling at a speed of 30-45 min. A detection result shows that the silver ornament alloy taking silver as the main component has the advantages that the silver ornament alloy is brighter (whiter) than the s925 international sterling silver, the silver ornament alloy is characterized by anti-oxidation and corrosion resistance and is harder, the hardness is 4.5-5.2, and the silver ornament alloy is more durable and attractive and has a better health-care function for the human body.

The invention discloses a dynamic heat flow sensor integrating thermoelectric potential effect, which comprises a T-shaped encapsulation outer shell, a nichrome heat transmission body, a corundum tube, an end-exposed single core nickel-silicon alloy wire, and a sterling silver plunger; a T-shaped tail heat sink body is connected on the T-shaped encapsulation outer shell; a containing through cavity is arranged in each of the T-shaped encapsulation outer shell and the T-shaped tail heat sink body; the nichrome heat transmission body is located in the containing through cavity; one end of the nichrome heat transmission body is connected with a phlogopite insulation sleeve; a containing through hole is arranged in the nichrome heat transmission body; the corundum tube is fixed in the containing through hole; the end-exposed single core nickel-silicon alloy wire is fixed in the corundum tube; the end face of the end-exposed single core nickel-silicon alloy wire is leveled with the front end face of the nichrome heat transmission body; and, the sterling silver plunger is located at the outlet position of the containing through hole and connected with the head of the end-exposed single core nickel-silicon alloy wire. The dynamic heat flow sensor integrating thermoelectric potential effect is simple in processing and assembling technology, low in production cost and easy in quality control, and is advantaged in improving the thermal response speed of the sensor and the test precision and prolonging the effective test time.

The invention discloses a high-damping Ag-Li-Sn silver-lithium alloy with electrical conductivity close to that of pure silver. In terms of weight percentage, the chemical composition of the alloy is: Li:0.5‑3.4wt.%, Sn:2.6‑3.8wt.%, Be:0.2‑0.5wt.%, Hf:0.1‑0.3wt.%, Sr:0.5‑ 0.8wt.%, Ge: 0.2‑0.4wt.%, In: 0.1‑0.3wt.%, Ta: 0.1‑0.3wt.%, Gd: 0.2‑0.3wt.%, B: 0.2‑0.4wt.%, The balance is silver. Compared with traditional electrical contact silver alloys, the material has excellent mechanical properties, high electrical conductivity and excellent damping properties.

The present invention relates to silver solder or brazing alloys and to their use in making soldered joints in various grades of silver, particularly silversmithing grades. They alloys are of the Ag-Cu-Zn family containing at least 55 wt % Ag and from 0.5 to 3 wt % Ge. Additional alloys are silver solders or brazing alloys of the Ag-Cu-Zn family containing more than 70 wt % Ag and from 0.5 to 3 wt % Ge. They can exhibit an advantageous combination of colour, flowability and corrosion resistance. A method is also provided of making a joint in Sterling silver which includes using a silver solder or brazing alloy of the Ag-Cu-Zn family containing 10-30 wt % Cu, 8-15 wt % Zn, from 0.5-3 wt % Ge, optionally 0.05-0.4 wt % Si, optionally 1-3 wt % Sn, optionally 1 ppm-0.3 wt % B, the balance being 55-77 wt %, Ag, said solder being a colour match for said Sterling silver.

The invention discloses a method for detecting a lead content in submicron silver powder prepared through a PVD method by using ICP. The method comprises the following steps: (1) preparing submicron silver powder; respectively adding standard sterling silver or the silver powder sample to nitric acid according to a certain ratio, then carrying out mixing and heating to completely dissolve the silver, wherein 1 g of the standard sterling silver or the silver powder is added to 10-30 mL of the nitric acid; (2) cooling the two resulting solutions and respectively carrying out metered volume; (3) drawing standard curves of different lead spectrum lines in the silver solution, wherein the standard curve is drawn through the following steps that: a lead standard solution with a concentration of 0.00 mug / mL and a lead standard solution with a concentration of 10.00 mug / mL are adopted, the spectrum line intensity of the lead is determined under working conditions set through an inductively coupled plasma spectrometer, the lead concentration is adopted as the abscissa, the spectrum line intensity is adopted as the ordinate; (4) selecting the optimal spectrum line; (5) determining the spectrum line intensity in the silver powder solution, and the corresponding lead content, then calculating the lead content in the silver powder. The method provided by the present invention has the following advantages that: the spectrum line is easy to find; the detection cost is low; the method is applicable for the practical detection in the factory.

The Pocket Square Jeweled Cap And Base is an article of jewelry comprised substantially of a thin cap made of or plated with semi precious or precious metal, enamel, wood, crystal, sterling silver stained glass, gold, platinum, ebony, pearls or ceramic. Inside the metal cap is substantially a metal male protruding nub snap component. Affixed to the caps are substantially semi precious or precious stones, optional small time piece, enamel, wood, crystal, sterling silver, stained glass, gold, platinum, ebony or ceramic. Inserted into and snapped to the bottom opening of the decorated cap is a thin, brittle, flexible, elongated rectangular, pocketed or un pocketed triple stitched base component. Affixed to the upper base component is a male metal protruding nub snap which is then attached, snapped to the inside of the caps metal female snap receptacle creating a single ornament. The ornament is inserted into a coat outer breast pocket exposing one third to one fourth of the upper decorated metal cap above the top edge of the pocket.

The invention relates to a purple gold Jian ware with silver pekoe. Specifically, the invention provides a preparation process of a purple gold Jian ware with silver pekoe. The process comprises the following steps: glazing a green body, and roasting the glazed green body to obtain the purple gold, silver and millipekoe Jian ware. The glaze surface of the purple gold Jian ware with silver pekoe is densely covered with silver pekoe lines which are moist, dense, clear and uniform, are as beautiful as jade, present a strong layering sense and belong to top-level pekoe lines; beautiful and glittering purple gold stripes are arranged among the silver pekoe lines, and the purple gold stripes are spread like broken gold, rich in color and prominent in embossment sense; and the glaze surface is glittering, beautiful and unsophisticated in the sun, presents good texture and prominent three-dimensional sensation, and thus has graceful appearance and high artistic and collection value.

The invention provides a production process and production equipment for cooked spot copper material, comprising the following steps: producing a proportion, proportioning electrolytic copper, pure silver and zinc as synthetic materials for producing cooked spot copper, smelting zinc, First put zinc into the crucible according to the proportion, and raise the furnace temperature to the first specified temperature. The invention provides a production equipment for cooked spot copper material, which includes an equipment main body, the equipment main body includes a casing, and a telescopic stirring device is arranged on the top of the casing. The middle part of the inside of the shell is provided with an intermediate frequency smelting device, and a sealing plate is arranged inside the shell and near the bottom of the intermediate frequency smelting device. The invention uses the telescopic stirring device to stir, so as to complete the production work with high quality and complete automatic production, replacing the previous traditional The manual craftsmanship effectively improves the production efficiency and product quality. At the same time, the replacement of labor by machines also avoids the risk of accidental injury to traditional manual laborers, and protects the safety of workers' lives and property from loss.