Five steps of hard stone carved into a jade ring
Legend has it that the gods of Kunlun Mountain planted Kunlun jade in the nursery. After careful care for a thousand years, a drop of jade cream can be secreted. However, jade is very difficult to plant, and when it is fast, it is suddenly destroyed, and the blood of the mind is instantly lost.
The craftsmen of the Golmud Jade Company are just like the gods who care for the jade species, and carefully craft the jade rings used by the Olympic medals.
The Beijing Olympic medal medallion has an outer diameter of 58 mm, a thickness of 3 mm and a weight of about 15 g. 3030 jade rings add up to only 45.45 kg, less than a hundred pounds. However, in order to pursue quality, the consumption of jade raw materials is as much as 50 tons.
"Jade is not a weapon," the Olympic medal production of Yuhuan fully explains this sentence.
Difficulty, a jade ring can't be flawed
Jade is a mineral product naturally formed during the formation of the earth's crust. It is inevitable that the jade will be worn with shackles. The craftsman will subtly conceal the enamel according to the characteristics of the original stone to maximize its potential. Therefore, thousands of jade, there is no repetition, this is the charm of jade.
And 1010 white jade ring, 1010 green white jade ring, 1010 green jade ring, each jade ring put together, the color difference can not be too big; look at each jade ring, can not have obvious flaws, can not have cracks, smooth and not cracked If the jade is too oily or too dry, it must be eliminated.
Difficult two materials are expensive
The jade selection process consumes a lot of jade raw materials.
Liu Shengchun, president of the Golmud Jewelry and Jade Association, told the reporter that the jade raw material must be a huge block of special Kunlun white jade, white jade and sapphire. After cutting, there should be no defects such as cracks, uneven color and insufficient density.
He introduced that raw materials were first roughed in Golmud. The cutter used a jade cutter to cut the jade into a 66 mm × 66 mm cube, cut it into a 3.5 mm thick sheet, and transport it to the processing plant in Yangzhou.
In the jade warehouse, Liu Shengchun pointed out that a piece of rice with a length of more than one meter was politely said: "It is good to see this piece of material from the outer skin! Cut it and see that it is a flower. It would have been able to sell hundreds of thousands of stones. Wasted."
Difficult three bronze medals are the hardest to do
“The bronze sapphire ring is the hardest to do, and the elimination rate is the highest.†Liu Shengchun said that when the material was selected, it was a good jade stone with a bright green color, but after being sliced, the color of the jade was white, even if there was no 瑕疵Also have to be eliminated. This part of the jade piece, because of its thin thickness and small size, completely lost its original value.
The difficulty of sending four jade is the southern heavy snow
The jade piece was cut, and I did not expect that the process of sending jade was full of hardships. When the jade was delivered, it was the Spring Festival, and the southern part of the country was snowing. The disaster caused the jade team to walk on the road for eight days and eight nights.
Difficult five-dimensional jade process step by step fine
Since ancient times, the production of jade has always been a workshop operation. In order to meet the strict requirements of the size of the Olympic medal Yuhuan, the factory introduced the jade equipment of computer numerical control.
The staff put a thin piece of square jade into the washing machine, and the diamond rod at the end of the machine repeatedly circled the jade piece. After the front and back sides of the jade piece are washed and polished, the jade piece is placed in the CNC jade carving machine, and the outer ring is cut by a high-precision diamond cutter.
The slotting on the edge of the jade ring is the most difficult part. A 1 mm wide slot is to be cut on the edge of the 3 mm thick jade ring. Finally, it is manually polished to remove the edges and corners produced in the cutting.
After washing the plane, cutting the outer ring, slotting, chamfering and grinding, after five major processes, the rough jade pieces are transformed into a round and smooth jade ring.
Difficulty six elimination rate is high and scary
Liu Shengchun made more than 1,440 pieces of jade pieces, and the results were not enough. Why is there such a high elimination rate?
Jade can't be flawed, and jade ring production also has a lot of wear and tear. Jade making rarely encounters the size of 3 mm. The thin jade is easy to break, and the process of slicing, dicing, and grooveting is easy to cause the jade to collapse.
If jade is too oily and has poor color in the final polishing, it must be eliminated. Each jade ring must pass the acceptance of five experts, and one less sign will not work.
Difficult seven jade ring to ban
“Golden jade†set a first place in the history of the Olympic Games. For the first time, two different materials were used on Olympic medals. However, gold and jade hard will cause damage to the jade ring.
The designer designed a buffer zone on the inner edge of the jade ring and added a damping material to make the jade and metal "smoothly stitched together".
Considering that the medal-winning athletes may throw up medals when they are excited, the Yuhuan has also passed the "destructive test" thrown from a height of two meters.
The jade industry of Golmud did not live up to the tasks assigned by the Qinghai people and the provincial party secretary.
Yuhuan, auspicious and beautiful symbol, it bears the blessings of the Qinghai people for the Beijing Olympics; "Golden jade" represents the Chinese people's praise for the Olympic spirit; China's unique jade culture will also spread with Olympic medals around the world. .
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