4 thoughts on “What processes do diamonds generally need to be processed from rough!”

  1. In order to cut the diamond rough and grind into various types of finished diamonds, a series of processing processes must be implemented according to steps. Generally speaking, there are four independent steps of cutting diamonds, namely marking, dividing, shaping (shaping) and polishing.

    1, marking rough

    mainly on the correct evaluation of diamond rough, and use special strokes on the diamond with a special pen. Diamond implementation. The mark is the first step in the cutting of diamond cutting, which is also the most important job in the entire cutting process. It directly affects the economic benefits of diamond cutting processing and the perfect level of the final diamond finished product. Therefore People must have a solid professional knowledge, rich practical experience, and proficient in processing technology. His ultimate goal is to create the largest, cleanest and perfect finished diamonds, and create the largest economic benefits.

    2, segmentation of rough

    For various reasons, it is necessary to divide the rough stones. Segmentation of rough stones is also a very important job. It also directly affects the quality of diamond finished products and ultimately affects the value of diamond finished products. The important factors that need to be considered when dividing the rough stones are: the shape of diamond rough, the internal defects of diamonds, the characteristics of dual crystal and crystalline science. For example, diamonds with octagonal shapes usually use the Topping The Stone method, and it is also said to see the rough stones (Figure 4-7). This will get greater business value. Taking a 6 -carat rough as an example, if the rough stone is divided by cutting the top, the weight of the large part of the bottom is about 4 carats, and the top weighs about 2 carats. Essence If divided according to the waist and other points, the two parts of the rough stone weigh 3 carats, and will still be calculated at a 50%production rate. It will obtain two finished products of about 1.5 carats. Obviously, the commercial value obtained by the first method will be greater. Essence

    3, coarse grinding

    This is the process of forming diamond rough for molding processing. It is a cutting or cutting process. This process is similar to it on the lathe Processing wood or metal.

    The process of rough diamond grinding is: first stick the waist -grinding diamond to a fixture and put the fixture on the card of the coarse grinding machine,

    One as a cut is clamped on the fixture. The operator clamped the long handle with his arm. When the coarse mill drives the diamond rotation, the two diamonds make the two diamonds contact each other to form each other.
    4, grinding

    The grinding is a series of processes to implement a series of processes for coarsely grinding diamonds and grind it into the final finished product. The main components of the grinding equipment are grinding, clamping, and clamping. Stranging is a very technical technology. It requires diamond cutter to understand a certain process and requires rich experience.

    The processing of diamond jewelry

    one of the main functions of diamonds is to wear to decorate and beautify people's lives. To be worn, it must be made into jewelry. Therefore, the processing and production of diamond jewelry should be an extremely important part of the entire diamond processing link. Diamond jewelry processing has the following two most basic methods:

    4.3. The most basic processing steps, whether it is the casting method or the forging method, uses hand -made jewelry as a mold. Therefore, the hand -made master often has the highest technical level in jewelry processing plants. The basic process of processing the diamond jewelry hand -made method is:

    (1) Preparation: After the processor gets a complete jewelry design drawing, you must first read the picture to understand the jewelry design The teacher's design intention, analyzing the overall structure of the jewelry and the diamond inlaid method. On this basis, prepare processing materials and adjust processing equipment.

    (2) Sub -processing: According to the results of structural analysis, the entire jewelry is decomposed into several independent components according to the principle of major priority, and then according to the weight, thickness, width, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness, thickness. Prepare metal materials in length, and use tools such as chip machines, setting wires, nests, pit iron, gold hammer, clams, etc., and through the process of pressing pieces, pressing strips, dialing, cutting, gold, etc. The basic appearance; and use tools such as, pliers and other tools for more accurate components. Diamond jewelry should be inlaid, first processing the inlaid of the main stone and auxiliary stone.

    (3) Formulating: According to the design pattern, placing processed scattered components on rubber mud should pay attention to the overall coordination and high level level. is very important. After the overall is placed, pour the pre -mixed gypsum slurry on the prototype of the rubber jewelry. When the gypsum is dry, remove the rubber puree. At this time, the front of the entire jewelry will be firmly fixed by the plaster.

    (4) Surgery welding: first clean up the welding joints of the first jewelry on the plaster base, prepare several metal welding from high temperature to low temperature, use borax for welding medicine, use wind balls, use wind balls -Tor oil pot-fire blowing structure, in the order of large first, then small, welded in sequential welding. After welding, wash the gypsum powder of the coats of the jewelry, welded with a low -temperature metal, and welded small components. Pay attention to check the virtual and reality of the solder joints, and complete the welding in a short period of time to keep the welding joint clean.

    (5) Fine treatment: Although the welded jewelry has basically formed, it is quite rough. It also needs to use tools such as crickets, sand, paper, leather sand wheels, etc. All excess welding and scarring marks. If there is no tadpan eye, it is necessary to repair it with fire welding. When doing this process, it must be quickly and accurate to avoid the original solder joints from getting off.

    (6) Diamond inlaid: Diamond is the center of the entire diamond jewelry, so the diamond should be put first in the whole process from design to processing. First, choose the appropriate inlaid method, use tools such as cranes, fine sturgeon, pliers, tweezers, and wooden clips to complete the diamond inlaid process through stone observation, gemstone placement, inlaid positioning, and stone reinforcement. When inlaid, the auxiliary stone is generally put, then the main stone is on, and then the bead is used to round the melon or use the rubber wheel to light it.

    (7) polishing and cleaning: polishing is to increase the smoothness of the metal surface. Usually used tools include polishing machines, brushes, yellow cloth wheels on the green wax, and white cloth wheels with red wax.

    (8) Post -processing: When processing and making diamond jewelry, it often adds electroplating color metal layers (such as electroplating 18K platinum, etc.) to achieve novel artistic effects. In addition, as an industrial product, before the factory, parameters such as printing plants, metal purity, and diamond weight on diamond jewelry are also completed in order to complete the production process of the entire diamond jewelry.

    4.3.2 casting method

    The casting method is currently more popular precious metal diamond jewelry processing method. The processing steps of this method are as follows:

    (1) Starting board: using hand -made methods to create jewelry models, and in its appropriate position welding Baseball, as a model for casting. In some cases, the jewelry is also used to create the original shape of the jewelry, which is also called the waxing plate.

    (2) Pressing rubber and waxing: Use plastic raw rubber sheet to clamp the jewelry sample in it, stuff the raw film into a pre -selected aluminum frame, and fill it with the suppressed samples. Film, use the thermal compressor (150 ℃ ±) to suppress the rubber for 30-60 minutes, and then use the operating knife to cut the film according to a certain technical rule. Take out the jewelry model to make the so-called rubber mold. Use the molten paraffin into the glue mold with the casting wax of the vacuum machine (70-90 ° C, 1-1.2 × 105Pa). After cooling and hardening, it is so-called wax mold.

    In the wool edge on the wax mold, and modify the ring mouth according to the customer's requirements, and plant it on a prepared wax pole. Wax tree. The smaller species is on the top of the tree, and the larger ones are placed at the bottom of the tree. The angle of the seed should be around 45 ° to ensure that liquid metals can be poured into all parts smoothly.

    (3) Casting: First weighing the wax tree, fixed in the cast cage, stir the gypsum powder and water at a ratio of 1:40, and place it on the vacuum of vacuum. About 90 seconds, after taking it out, pour into the casting cage, and then take a vacuum of about 90 seconds before taking it out. The gypsum can be solidified in about 2 hours, and then after 1-2 hours of steamed wax, you can put the casting cage in the oven for baking of gypsum. After about 6 hours of gradually heating, you can complete the baking of gypsum. Made into gypsum mold.

    In the next step, heated the metal material and replacement in the melt furnace. When the alloy is completely melted and stirred, the gold water is cast into the gypsum of the vacuum or centrifugal casting machine. Become a jewelry blank.

    (4) Modeling and frying gold: The molding is a process of carefully repaired the rough of the jewelry; and the frying gold refers to the process of removing the metal jewelry after the model is dense. Both processes are essential for processing diamond jewelry.

    (5) Stone inlaid and later treatment: After the golden gold, it is inlaid, polishing, cleaning, and typing printing by the same process.

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  3. 3 Answer supplement
    The biggest feature of plum blossom diamonds is the unique cutting process of its pavilion. The plum cutting method replaces the 57 sections of ordinary diamonds with 81 cutting noodles. There are still 33 cutting noodles in the crown, but the pavilion has increased to 48 cutting surfaces, 32 lower waist surfaces, and 16 main faces on the pavilion. Because the front view of its front is like a blooming plum blossom, it is called "plum diamond".
    In general, ordinary round diamonds are 57 cutting surfaces. That is, there is one crown top, 8 aspects of the star, 8 main faces of the crown, and 16 upper waist; the cut surface of the pavilion is 16 lower waist surface and 8 main faces. Under normal circumstances, the pavilion is cut according to the full reflection principle of light, and cutting according to a certain cut proportion can reflect the dazzling glory. However, because there are only 24 cutting surfaces in the pavilion, the refraction of the light is insufficient. If the diamond is larger, the more obvious the defects in this regard, which will affect the diamond fire color to a certain extent.
    Ωǒ 死 Acceptance rate: 25.0% 2008-11-21 03:10

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