How is gold jewelry produced

Gold jewelry should be made into different models. How to form a liquid into the model? How to extract it when it is dissolved in aqua regia?? I want a simple explanation

5 thoughts on “How is gold jewelry produced”

  1. Melting gold: use acetylene flame to burn the (unwrought) gold in the quartz crucible (high-temperature resistant crucible) to make the B melt into a single ingredient suitable for processing jewelry

    reverse mold: use high cycle or medium cycle centrifugal casting machine to melt the gold ingredients and then pour them into the gypsum mold to cast the casting

    polishing: the process of using magnetic polishing machine or roller polishing machine to produce luster on the casting surface

    mold holding: use ring iron, pit iron and other auxiliary tools to weld, file and hammer the casting to repair the deformation and surface roughness of the casting during the casting process

    calendering: contact the gold surface with an agate pen and rub the workpiece to make the surface of the workpiece bright

    patterning: use a patterning machine equipped with a diamond patterning knife to make patterned batch engraving on the surface of the product

    extended data:

    maintenance methods

    1. The chemical substance of detergent will change the color of gold, so you should take off the gold jewelry before cleaning

    2. Avoid direct contact with perfume, hair gel and other highly volatile substances, otherwise it will easily lead to the fading of gold ornaments

    3. When swimming, take off the gold ornaments to avoid chemical changes on the surface after touching the seawater or pool water

    4. Wrap it with flannelette and put it into the jewelry box to avoid mutual friction and damage

    5. Gold is soft and easy to deform, so don't pull necklaces and other accessories to avoid deformation

    6. Pure gold jewelry will produce chemical reaction when encountering mercury, and white spots will appear. When cleaning, it can restore its original color as long as it is roasted under an alcohol lamp for a while

    7. Gold ornaments often lose luster due to dirt and dust after wearing. At this time, just put the gold ornaments in neutral detergent, soak them in warm water and clean them, then take them out and wipe them dry

    cleaning method

    1. To protect the luster of gold jewelry, you can apply a thin layer of nail polish on it

    2. If there is a black silver film on the surface, use 2G of salt, 7g of baking soda, 8g of bleaching powder and 60ml of water to prepare a "gold ware cleaner". Put the gold jewelry in a bowl and pour the cleaner. After 2 hours, take out the gold jewelry, rinse it with water (preferably not hard water), bury it in wood chips and dry it, and then wipe it with a soft cloth

    3. For the ring set with gems, roll a piece of cotton with a popsicle or a matchstick. After wetting it in the mixture of toilet water and glycerin, scrub the frame of the gems, and then polish the ring with a flannel cloth. Never scrape with sharp objects such as blades

    4. Salt and vinegar are mixed to form a cleaning agent, which can be used to wipe pure gold jewelry and keep it fresh for a long time

    5. The luster can also be restored by wiping with toothpaste or scrubbing with hot concentrated rice soup

    6. 70% nitric acid and 98% sulfuric acid can be used in a ratio of one to three. However, this pair is cleaned by chemical reaction and has a certain loss of gold

    avoid contact

    warm tips: pay attention to the method of self cleaning gold jewelry: you can put the gold jewelry in diluted soap solution for cleaning, and then use a soft cloth to absorb the water

    reference: Baidu Encyclopedia - gold jewelry

  2. Melting gold: use acetylene flame to burn the (unwrought) gold in the quartz crucible (high-temperature resistant crucible) to make the B melt into a single ingredient suitable for processing jewelry

    reverse mold: use high cycle or medium cycle centrifugal casting machine to melt the gold ingredients and then pour them into the gypsum mold to cast the casting

    polishing: the process of using magnetic polishing machine or roller polishing machine to produce luster on the casting surface

    mold holding: use ring iron, pit iron and other auxiliary tools to weld, file and hammer the casting to repair the deformation and surface roughness of the casting during the casting process

    calendering: contact the gold surface with an agate pen and rub the workpiece to make the surface of the workpiece bright

    patterning: use a patterning machine equipped with a diamond patterning knife to make patterned batch engraving on the surface of the product

    extended data:

    commodity knowledge of finished products and main raw materials:

    gold jewelry is precious metal jewelry made of (unwrought) gold

    k (yellow) gold jewelry is made of (unwrought) gold and (unwrought silver) joint coating in proportion

    k (yellow) gold inlay jewelry is a precious metal jewelry made with K (yellow) gold (unwrought) and (unwrought silver) patched in proportion and various kinds of diamond, gemstone, semi precious stone, pearl and other inlaid materials used in jewelry

    the main products are: rings, earrings, pendants, necklaces, brooches, etc

    reference: fenghuang.com --- gold jewelry craft production line jewelry brand craftsman production process

  3. First, the recycled old gold ornaments are used as raw materials and melted into the iron tank to form gold bars
    II. Press the gold bar into a gold plate according to the thickness of the required profile
    III. forge the gold plate and remove the profiles required for making bracelets and other jewelry
    in the material preparation department, the staff process the prototype of products according to the mold, that is, semi-finished products or accessories, including Necklace [2] accessories, small round beads or olive beads. Then, these semi-finished products will be transferred to the chain to connect each part of the necklace, thus forming a preliminary complete necklace
    IV. make patterns for semi-finished jewelry cars and polish off unnecessary parts
    the work content of the oil pressure department is the same as that of the material preparation department. It is also the rudiment of processing and production products. Once the prototype is available, it will be sent to the mold holding department for reshaping, so that the shape of gold jewelry such as rings and bracelets will be closer to the shape of the finished product
    v. connect the processed gold beads to form a preliminary complete necklace
    regardless of the structure of jewelry, semi-finished products are sent to the flower Department. We can see the exquisite patterns on the gold ornaments, which are the masterpieces of this department. Finally, the gold jewelry should be sent to the electric gold department for polishing and calendering, that is, to remove some impurities and dust on the surface of the gold jewelry. After further processing by professional technology, it can achieve the best effect of a finished gold jewelry
    VI. after a piece of jewelry is finally processed, it will be weighed and delivered.

  4. Melting gold: use acetylene flame to burn the (unwrought) gold in the quartz crucible (high-temperature resistant crucible) to make the B melt into a single ingredient suitable for processing jewelry

    reverse mold: use high cycle or medium cycle centrifugal casting machine to melt the gold ingredients and then pour them into the gypsum mold to cast the casting

    polishing: the process of using magnetic polishing machine or roller polishing machine to produce luster on the casting surface

    mold holding: use ring iron, pit iron and other auxiliary tools to weld, file and hammer the casting to repair the deformation and surface roughness of the casting during the casting process

    calendering: contact the gold surface with an agate pen and rub the workpiece to make the surface of the workpiece bright

    patterning: use a patterning machine equipped with a diamond patterning knife to make patterned batch engraving on the surface of the product.

  5. The processing of gold jewelry is wire drawing. It was specially mentioned on TV that it is not melting. It is drawing gold bars into thin wires, so the processing cost is very expensive.

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