Jade is not cut, not a device. A good piece of jade must be carefully polished by the designer to reflect its greatest value. So, how does jade polish? Let's take a look together.
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Jade polishing: There are generally two ways. For the light body jade (such as jade bracelet, jade buckle, chicken heart, hanging ring), use hand polishing; for Guanyin, Maitreya Buddha various flower pieces, etc., then the earthquake is polished. The time required for the polishing of the shaker can be completed in about 3-5 days, and a large batch of jade can be polished at a time.
1. Hand throw: use 600#---1200# polishing sandpaper, first use the power tool to install the diamond drill bit to modify the jade piece, and then repair it with diamond assorted. Large-area grinding with round sandpaper (from coarse sand). * Use a round cloth wheel to apply a polishing paste for large-area polishing. * Use a felting head to apply a polishing paste for fine polishing. It can also be directly polished with a rubber grinding head. Finally, it can be hand-made with 1200 sandpaper, and then finely thrown with diamond powder.
2. Machine throw: buy a polishing machine (300 yuan to 500 yuan), a small jewelry jade barrel polishing machine. Buy some diamonds of our flying abrasives 320#-8000#, and throw them into fine polishing. Buy triangle bead polishing particles, cold light powder, grinding and polishing powder (both of these flying abrasive tools can be provided) to achieve a mirror effect in the polishing machine for a while.
3. Emerald polishing: the surface is coated with a layer of paste polishing powder, green is chrome oxide orange red for yttrium oxide. Grinding the surface with a two-mesh grinding wheel. Repeat the first two steps, generally repeat the brush after the second time, apply the diamond powder to the jade surface and then use a hard brush to throw. Fine work, began to throw a small place to throw away the big tools. Use bamboo, dipped in diamond powder, use bamboo chopsticks bigger, and use bamboo toothpicks in small places. 4. Apply the diamond powder to the jadeite and use the hard skin to concentrate. Then use an ultrasonic machine to clean, wash the area and then rub it with alcohol. Then on the wax, the surface of the jadeite product is protected, washed with boiling water and then blown dry. A beautiful emerald made.
4. Jade carving and polishing process—Jadeite has high hardness, but as long as there is diamond or synthetic diamond tool plus speed, it can be carved as desired. There are three processes for polishing and polishing to radiance: a. Rough grinding - using (1000-2000 mesh) emery, the tools are made into various shapes and carefully polished. b. Fine grinding - using (1600-1800 mesh) corundum with the above method to polish smooth and shiny. c. On the bright - use the semi-green leather making tools 蘸 polishing powder (3.5 micron diamond powder) repeatedly rubbing, so that the jade products inside and outside the gloss bright. d. Wax - Wax is used for waterproofing and anti-dirt contamination.
About the polishing knowledge of jade, I will introduce you here briefly and hope to help you.
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