People have summarized in everyday life many old sayings that can be called golden phrases. These old sayings contain deep truths and are widely circulated in society. "Porcelain work" probably understands its meaning, i.e. don't do this work if you don't have that ability, but do you know what is the relation between "diamond cut" and "porcelain work".
China is the birthplace of porcelain. In the 5000-year history of China's civilization, porcelain has a 3000-year history. The main raw material is china clay, which is then fired at a high temperature of 1200 to 1400 degrees. .
Faced with broken porcelain, people came up with a way to repair porcelain. After continuous research and practice, they devised a method of drilling holes with a drill and then repairing with metal buckles connecting the pieces of porcelain like staples. This process is called "curium porcelain" and porcelain repaired with curium porcelain can be waterproof.
Development of curium porcelain
This skill first appeared in the Song Dynasty Picture of Shanghe during the Qingming Festival, which includes a description of the work of a curium master.
In the Compendium of Materia Medica, written by Li Shizhen in 1578, "sand can drill into jade to mend porcelain, hence it is called a diamond."
The Italian missionary Limarco described curium porcelain in his "Notes on the Knowledge of China": "Porcelain after curium repair withstands the temperature of hot food without cracking. If it breaks, it can be melted down with copper wire." Stand up, hold on. soup and water without leaks,” but the copper wire alloy in the book must be an inaccurate translation. Curium porcelain should use curium to bond broken porcelain, not to "fuse" it together.
Curium porcelain process
The first step in working with curium porcelain is to find the joints in the broken porcelain, restore the damaged porcelain to its original shape, and record the position of the combination of texture and design style.
Use the diamond drill bit to drill holes in the two damaged tiles. The tiles are only a few millimeters thick and cannot be pierced. The holes must be symmetrical, without any deviations.
Curium is made from gold, silver and copper. "Curium" is a two-toothed nail, which is flattened with a hammer to copper or silver, and porcelain is connected to curium like a staple. with a hammer to break the curium, and various patterns can also be made from the curium. Finally, mix the egg white and porcelain powder and apply it to the broken porcelain seam so that the porcelain does not leak.
How to punch holes in porcelain
The hardness of porcelain is very high. After glazing and firing at high temperature, the surface will be very smooth and hard. If you want to punch holes in it, you will need special tools. Work with porcelain without diamond drills,” he says as he punches holes. Tools must be very hard and not too sharp so as not to damage other parts of the porcelain, so what is used to punch holes in curium porcelain?
Now drilling holes on the product is very easy. No matter what material, you just need to choose the appropriate drill, and you can easily drill holes with an electric drill or a machine. Diamond drills are required for drilling holes in porcelain.
The editor also specifically checked some of the information. There is no clear conversion between the hardness of diamond and ceramic. Diamond has a Mohs hardness of 10, while ceramic does not. Knoop hardness of diamond is 7000~8000HK, ceramic is about 1500-2000HK, so the comparison is more intuitive. (Note: The above data is also converted, not very accurate, for reference only)
In ancient times, there were two types of drilling tools: the pull drill and the dance drill. In these two drills, the diamonds are embedded in the drill rod head and the rotation of the drill rod causes the diamond to drill holes in the hard rock. porcelain.
A pull drill consists of a handle, a drill handle, a drill pipe and a pull cable. When using, hold the handle with your left hand and pull the pull with your right hand. Through the friction between the traction rope and the rod, the rod reciprocates and rotates. The drill that drives the head plays the role of drilling.
The dancing drill is a round drill rod with a push rod, and a thin rope connects the two ends of the push rod to the top of the drill rod. During use, rotate the drill rod and the string will wrap around the drill rod. , and then press down on the pressure rod, the string will make the round drill rod rotate to complete the drilling.
What is a diamond
Diamond is a type of mineral formed in certain natural conditions. It is the hardest substance in nature. Diamond is formed by extruding carbon atoms from lava deep into the earth during the formation of the earth. Crystallization is formed at a depth of 150-200 kilometers underground at a temperature of 1100-1500 degrees Celsius Diamond is also considered the most ancient gemstone on earth.
Why is diamond so hard
The crystal structure of the octahedron is the most stable molecular structure in nature. The interior of a diamond is closely bonded to several carbon atoms, forming a dense three-dimensional structure. This is a special structure that does not exist in nature. the dense structure makes the diamond very dense and extremely hard, known as the king of hardness in nature.
How to polish a diamond
In ancient times, people discovered that the hardness of natural diamond is very high. There was no material harder than diamond, and they couldn't use the hard-to-hard method to polish a diamond. The principle of dripping water wears out. from the stone, through long-term friction between objects, hard diamond is finally crushed to the desired shape, diamond particles with a diameter of about 1mm.
The tip of the diamond drill used in the earliest curium porcelain is encrusted with diamond particles. A well-made diamond drill can be used by a curium china maker for a lifetime. one to two years to make a diamond drill.
At present, diamonds are being used more and more, and diamond cutting technology is getting higher and higher. People know that diamonds are flammable, so they use laser cutting. The melting point of diamond is 4000 degrees, and the laser can generate tens of thousands of degrees instantly. At high temperature, the diamond can be partially evaporated with a laser, and the diamond can be easily cut by the "hard temper" method.
Porcelain was once synonymous with China, curium porcelain craftsmanship was an integral part of Chinese porcelain culture, and the invention of diamonds also reflected the ingenuity of the Chinese nation. At present, few people know about curium porcelain. Make Porcelain Works Without Diamonds” will be passed down from generation to generation forever.
Finally, I would like to tell you about an interesting thing. In a foreign special forces competition, four special forces kicked and kicked a porcelain bottle for 2 minutes, and ended in failure. Porcelain is much harder than expected, which just confirms this proposal, do not work with porcelain without diamonds.