2。 Prepare a set of corresponding diamond bits.
3。 Prepare a set of corresponding felt grinding head, rubber grinding head and polishing paste.
4。 Prepare a set of corresponding round sandpaper and round cloth wheel.
5。 Prepare a set of assorted diamond files.
6。 Prepare some 600 #- 1200 # polishing sandpaper for manual polishing. The working procedure is as follows: firstly, use electric tools to install diamond bits to decorate jade, and then use diamond assorted files to repair it carefully. Use circular sandpaper (made of coarse sand and fine sand) to polish a large area. Apply polishing paste to the circular cloth wheel for large-area polishing. Use a felt grinding head to apply polishing paste for fine polishing.
Rubber grinding head can also be used for direct polishing. Finally, it can be polished by hand with 1200 sandpaper. As for how bright light and matte are made, my experience is that it has something to do with the fineness of the initial polishing of jade pieces, the thickness of polishing materials, the polishing speed and polishing intensity, and of course it also has something to do with jade quality. It is easy to find experience in practice.
Hand polishing is very interesting. Experience 2:
Step 1: Paste: Apply a layer of paste polishing powder on the carved agate surface, with chromium oxide in green and cerium oxide in orange.
Step 2: Push grinding, grinding the surface with a 2000-mesh grinding wheel.
Step 3: Repeat the first two steps, usually twice.
Step 4: Brush, coating diamond powder on the surface of jadeite and then throwing it with a hard brush.
Step 5: Fine work, and start polishing small places where big tools can't be thrown. Use bamboo, dip it in diamond powder, use bamboo chopsticks for larger ones, and use bamboo toothpicks for small places.
Step 6: Fine polishing: coat agate with diamond powder and polish it with hard skin. Cowhide is widely used in China, and elephant skin is widely used in Myanmar. The agate has been polished, but there are still a few finishing touches to be done.
Step 7: Cleaning, the purpose is to clean the polishing powder remaining on the polished agate. It is mainly cleaned by ultrasonic machine, and the parts that cannot be cleaned are wiped with alcohol.
Step 8: Waxing, a kind of protection for agate surface, can be washed off with boiling water and then dried. A beautiful agate will meet you like this.
Take beads as an example.
Processing technology: slicing agate-punching the sliced agate-slicing agate-rounding with a molding machine-grinding-punching and dicing, rough machining into round beads with a vibrating bucket or centrifugal sand table under the interaction of mutual friction and quartz sand, and polishing with fine quartz sand. Holes are drilled in the later stage, and most of the beads processed by jade machinery and equipment are drilled by ultrasonic drilling machine, chamfering machine, middle plate machine and Wo Wo. With the machine, the output can reach 3-5 thousand, but it depends on the size of the beads.