Is silver jewelry processing okay

(1) Wire cutting: Using molybdenum wire of different sizes (a type of metal with high hardness), a wire cutting machine is used to slowly cut out the appearance of the jewelry, and then manually polish it. The more complex and difficult the style, the slower the shipment

(2) Precision die-casting: First, the sample is carved out with wax, then placed in a specialized gypsum, dewaxed, and the raw material is dissolved at a high temperature of 1500-2000 degrees Celsius. Then, it is poured into a gypsum mold, pressurized, demolded, and fully polished by hand. Because die-casting requires specialized gypsum molds, the prices vary.

(3) Polishing surface: Apply polishing wax to the high-speed rotating cotton cloth polishing wheel, and then contact the jewelry with the cloth wheel to make the surface shiny and reflect light.

(4) Sanding surface: Use sandpaper tape to create a matte effect on the surface of the accessory (light does not reflect), resulting in a matte effect on the surface.

(5) Sandblasting: The main working principle of sandblasting is to place sand (extremely fine abrasive, silver gray) in water, use a grinding fluid pump and compressed air, and use a spray gun to high-speed spray the grinding fluid onto the surface of steel jewelry, forming a silver gray coating. This makes the jewelry more high-end and not easy to fade, making it more popular among people of all grades

(6) Vacuum electroplating: Vacuum electroplating mainly includes ion plating, vacuum evaporation plating, sputtering plating, and ion plating, also known as nano electroplating electroplating method. They all use vacuum conditions to deposit various metal and non-metallic films on the surface of objects through distillation or sputtering. This method can obtain very thin surface coatings, while having the outstanding advantages of fast production speed and not easy fading, However, the price is also relatively high, and there are fewer types of metals that can be operated on. They are generally used as functional coatings for high-end jewelry and watches

(7) Resin inlay: (also known as adhesive or hard plastic) First, heat the jewelry with high temperature, and then apply the resin to the jewelry. As it is heated, it is not easy to fall off during the wearing process

(8) Zircon inlay: There are mainly two types, one is to use jewelry specific adhesive to stick, which is very strong. Another method is to use machine pressing and inlaying, which is complex in workmanship, fine and firm, but the price is more expensive than using glue.

(9) Carbon fiber inlay: It is expensive, but when used in jewelry, it moves with the line of sight and has a three-dimensional effect, which is very beautiful. Carbon fiber is a fibrous carbon material made from organic fibers containing carbon, such as nylon, acrylic, and rayon, which are combined with plastic resin and placed in an inert atmosphere to strengthen thermal carbonization under a certain pressure. Carbon fiber is a new type of material with conductivity, high strength, low density, corrosion resistance, and high temperature resistance. Composite materials made of carbon fiber and plastic can replace aluminum alloy to make light aircraft with high thrust, low noise, and low power consumption. When used in jewelry, the surface has a three-dimensional fibrous shape, and the light reflection will move up and down with your line of sight. This makes the style more unique and fully demonstrates the trend. Silver processing process flow one, casting, carving, and fine casting methods come from bronze technology. After the Tang Dynasty, The use of gold and silver decorations is becoming increasingly rare. Engraving requires the use of various shapes of steel chisels to carve patterns on the surface or back of the blank. There are several types of flower carving techniques, including yang carving, yin carving, and flat hollow carving. A considerable portion of Yunnan silver ornaments passed down from the Ming Dynasty were made by combining casting and chiseling.

2、 Hammer carving is the main method, and chiseling and engraving are the auxiliary methods. This type of silver decoration is the most common in Yunnan. Some use hammers and chisels from forming to decoration, some are welded and formed after hammering and chiseling, and some are decorated with silver rings and chains to form the entire jewelry. Some silver decorations have vertical or circular shapes, which are also welded after hammering and chiseling, and the details are carved and engraved.

3、 The filigree process involves weaving, stacking, pinching, and soldering silver wire to create various flat or three-dimensional patterns and decorations, including inlay, embellishment, or enamel, collectively known as filigree process. It can be made into larger sized jewelry with less silver material and is very exquisite and exquisite. Often, techniques such as inlay, gilding, embellishment, or enamel are used simultaneously. There were many types of silver ornaments in Yunnan during the Qing Dynasty. Silver production process:

1. Silver melting: First, weigh the weight of the silver material used using a scale, and crush the large silver material into a crucible to melt on the furnace. When the blast furnace reaches a white heat level, silver begins to melt and a copper mold is cast using a long handled pliers to clamp the crucible.

2. Forging: While the silver material is not getting cold, start forging and shape the silver blank according to the ideal.

3. Blanking: Compare the designed silver artwork to lower the silver sheet. The silver sheet should be slightly larger than the artwork, leaving a certain processing allowance. If it is a special shape, it should be unfolded into a flat surface for processing.

4. Rough machining and initial hammering to create large concave and convex shapes on silver jewelry

5. Making a lead holder: The role of a lead holder is to hold and fix the silver pieces that need to be processed for further production. Place the rough processed silver sheet upside down in a sand box, inject the melted lead liquid into it, and cool it to form. I used to use rosin as a support

6. Precision machining: This process includes processes such as hammering, carving, and engraving. It is the most crucial part of the entire process, and many silversmiths in Yunnan call this process "carving". The tools used for carving flowers are a small hammer and several chisels, with various chisel heads such as pointed, round, flat, crescent shaped, petal shaped, etc., which can be selected according to needs. When processing, the hammer is held in the left hand, like a painter using a pen, and the hearts and hands correspond to each other, carving groups of vivid and distinctive patterns. The key to the quality of silver jewelry craftsmanship lies in this moment, where the fine details of carving fully demonstrate the craftsman's meticulousness and accuracy.

7. Welding: For the silver jewelry that needs to be welded, hang welding flux at the interface and heat it up in the furnace for a moment before welding. The ingredients of welding flux, the temperature of the furnace fire, and the length of heating time are closely related to the welding quality.

8. Acid washing: After repeated pounding and moderate temperature, the surface of silver jewelry may turn black or be stained with impurities. Therefore, acid pickling is required. The pickling solution is composed of nitric acid and sulfuric acid, and the silver jewelry is rinsed in the pickling solution. Quickly remove and rinse with clean water. The timing of this process is very important, as the immersion time in acid solution is too short and impurities cannot be cleaned thoroughly. It will affect the luster of silver jewelry. If the immersion time is too long, the pickling solution will corrode the silver decoration, and also damage the color and smoothness. After rinsing and drying, be sure to choose a sunny day. The clearer the weather, the more beautiful the silver jewelry color will be.