Polishing mechanism for jade processing and polishing equipmentThe following was a polishing mechanism for jade processing and polishing equipment: For example, the Nakanishi electric grinder EV410 - 230, with a speed of up to 40,000, coupled with a Brushless motor ENK -410S, output power of 73W, and 4.3cN.m. It was suitable for precision grinding and polishing, tooth processing, jewelry carving, etc., including jade. The bearing structure made it without any maintenance and durable. In addition, there were also some grinding mechanisms in jade processing equipment, such as the grinding mechanism in the multi-functional small table mill (jade cutting and grinding machine) that might be used in some jade factories. It played a grinding role when cutting and grinding jade, punching Buddha beads, wooden beads, and other operations. The power was 950W.
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Polishing jadeThere were many ways to polish jade, including manual polishing and machine polishing.
##1. Hand-polished
1. ** Initial Modifications **
- Using 600# - 1200#polishing sandpaper, he first used an electric tool to install a diamond drill bit to decorate the jade piece, and then carefully repaired it with a diamond file. Then, he used round sandpaper (from coarse sand to fine sand) to grind a large area.
2. ** Large Area Polishing **
- Use a cloth wheel to apply polishing paste to polish a large area.
3. ** Finishing details **
- You can use a felt grinding head to apply polishing paste for detailed polishing, or you can use a rubber grinding head to directly polish. Finally, it could be hand-polished with 1200 sandpaper and then polished with diamond powder.
- For the sub-gloss process in hand polishing (Pure hand-polished, without the help of electric tools), commonly used for high-end seed material pendants. The surface of the polished jade has a very soft luster, close to the texture of the matte, suitable for pure color jade. However, under this kind of craftsmanship, the lines of the jade must be delicate, otherwise the overall beauty will be affected. The jade under the soft light process has a natural luster, emitting a faint light, and the light is smoother than the dull color. The luster of the high-light process was strong. Bracelets generally used high-light process to make the bracelet look more crystal clear. This process focused on the color of the material and was mostly used for processing Russian and Qinghai materials.
##2. Machine Polishing
1. ** Equipment and Materials **
- Buy a 300 to 500 yuan polishing machine (such as a small jewelry jade barrel polishing machine), then buy Feizhan's 320# - 8000#emery (from rough polishing to fine polishing), triangular bead polishing particles, cold light powder, grinding polishing powder, and polishing the mirror effect after polishing in the polishing machine for a period of time.
- For the machine polishing of jade, the surface is coated with a layer of creamy polishing powder.(Green for Chromic Oxides, orange-red for Cerium Oxides), grind the surface with a 2,000-mesh grinding wheel, repeat it many times, then apply a brush, apply the diamond powder on the surface of the jade, and then use a hard brush to polish it. Fine work, start to polish the small places that the big tools can't. After applying diamond powder on the jade, use the hard skin to polish it, then use an ultrasonic machine to clean it. Use alcohol to wipe the parts that can't be cleaned, and then wax it (a kind of protection). You can wash off the wax with boiling water and blow it dry.
2. ** Technique Steps (Take Jade as an example)**
- Roughly grinding: Use (1000 - 2000 mesh) emery to make tools of various shapes and polish them carefully and carefully.
- Fine grinding: Use (1600 - 1800 mesh) emery to polish it according to the above method until it is smooth and shiny.
- Bright: Use half-lived cowhide production tools to dip in polishing powder (3.5 um diamond powder) and rub it repeatedly to make the jade products bright inside and outside.
- Wax: Wax is used to prevent water and dirt pollution.
The polishing and polishing techniques of jade ware in different periods were also different. For example, the Neoliths used hand-polishing as the main method.(Grinding with water and fine sand), using bamboo, animal skin, or other soft materials to polish the surface. From the Shang and Zhou Dynasties to the Qing Dynasty, grinding and polishing tools of different materials were widely used for processing. In addition to the ancient method, stone weights, wood weights, felt weights, rubber weights, leather weights, cloth weights, calabash weights, cloth strips, leather strips, etc. were also used for processing. During this period, due to the improvement of speed and materials, the luster was stronger, and glass light appeared during the Han Dynasty. If modern antique jade was polished with high-speed, one-way electric tools, it would leave dense, slender, and regular traces.
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