"Xiao Wu, this competition organized by Mu Yuanju is also the biggest Nanhong event in recent years, right?"

"It should be, Qian Lao, Nanhong is also one of the traditional gemstones, but it has not been recognized by the market. What do the younger generations want to do in terms of commercial value or cultural value? That's why I had a competition with Brother Kuang, which can be regarded as a hot field. ”

Qian Lao nodded, this young man is honest, not bad. As a national master of arts and crafts, he is very familiar with Nanhong. He himself also likes Nanhong's introverted and deep, and has cooperated with Kuang Jingxia on several masterpieces in recent years. However, it has not reached the expected price and attention, and the old man is also angry.

"It's a good thing for young people to have ideas, and we're all old, and it's not good to see all kinds of foreign gems flourishing in our land. Our country has good things, why should we pursue other people's goods? I think the more games like this, the better, so that players know what is a real boutique? ”

Everyone echoed the voice, they are all experts in the circle, and the more popular the local goods, the greater the profits. You can't let foreigners make all the money, right?

"I announce the official start of the competition, and ask all the contestants to follow the staff to the rough stone area and choose the rough stone as much as possible."

More than 200 people went to the rough stone area, where there are thousands of various rough stones waiting to be selected. The size is not too big, basically all of them are covered heads, and they are good goods in Lao Kuang's hands in recent years. In order to show the high level of this competition, I endured the pain and cut my love, and contributed it all.

However, at the end of the competition, all the rough stones must be recycled uniformly, and it is impossible for the players to take them away.

"Are those three guys okay?"

"Rest assured, they are all senior designers, and one has just won a design award. Ouyang, that hairy girl, has been doing architectural design, how high can the level be? ”

Zhou Fusheng nodded with satisfaction, this time his son did a good job and discovered the conspiracy in advance. Can't let Old Guy Ouyang and Mu Yuan succeed, otherwise their lives will be even more difficult in the future.

"Is the girl of the Ouyang family okay?" Lao Kuang watched the start of the game, and all the contestants went to the rough stone area to choose stones, and said with some worry: "I would have left a mark if I knew it." At least let her choose the best stone. ”

"I don't need to." Wu Shixiang shook his head, he understood Ouyang Yao's temper and smiled: "That girl has backbone, she is willing to participate this time to prove her strength, she won't use it, wait and see." ”

"Yes. It's me who is in too much of a hurry. Lao Kuang relaxed: "This competition is very famous, and it has achieved our goal of starting Nanhong, and the rest depends on the real ability." ”

Ouyang Yao followed everyone into the rough stone area, she is very familiar with jadeite, she has been exposed to it since she was a child, and she has little contact with Nanhong. These grandfathers specially found masters to give assault training, and they also gained something.

She walked all the way with a strong flashlight, and she already had a design plan in mind, and chose the rough stone according to the size. Most of the rough stones are covered with head-covering materials, and the gambling is large. In particular, there are many colors of Liangshan material, and a rough stone is easy to produce several colors, and the yield is not high.

"I heard that there is a small part of Baoshan material in this batch of stones, and the quality is good, so I will look for it." Ouyang remembered Wu Shixiang's words before the game and locked on the target.

"This time, I don't need big materials for my design, mainly because the texture is good, the color is positive, and the Baoshan material is the most suitable. The problem is that I am afraid of cracking, and we should pay attention to this. ”

Look at the cracks in the stone. This is a technical job, and the thin-skinned Nanhong with a strong flashlight can be illuminated directly, but this thing with thick skin is useless.

There is also a kind of persimmon red color on the outside, and the white light is seen in the back. This situation should be more careful. In case there is white material behind, or crystal, it is crystal to be fine, it is white material can only be used as garbage.

There are many large head-covering materials on the market, with smooth surface and hard texture. The weight is good, and novices think it is a good material. In fact, a lot of it is garbage, and the surface has been manipulated.

Profiteers sell the rough stone in water-soaked sawdust, which is used to retain moisture, and the role of water is to make the rough look more colorful, and the wet Nanhong rough can hide many subtle imperfections. For example, the moistness is not good, there are fine cracks, etc.

There are also sellers who find that the material inside is not good after cutting a rough stone, and they will splice it again, and use mud to cover it up, making you mistakenly think that this is a complete rough stone that has just been excavated.

Generally, veterans bet on opening window materials, that is, open materials. The risk is smaller, but some windows are small open, but the color is very positive, so be careful that there is a problem.

This competition is Lao Kuang's selection of good materials at the bottom of the box, which is basically not bad, just to show the excellent quality of Nanhong, so the risk is minimized.

"Hey, that person is not Zhou Jinfu's Xiao Liu?"

Ouyang Yao suddenly raised his head, he was surprised to see an acquaintance, and his heart moved, could it be that Zhou Jinfu's participation was accidental?

"This is good!"

Ouyang took a turn, first selected a few rough stones of suitable size and surface, and finally selected two pieces to prepare for the competition.

"When the time comes, please gather all the contestants and take the rough stone to the processing area together."

Half an hour passed, the contestants had selected the rough stones, and the next step was to go to the processing area to see the results. If there is a large material, you can find a worker to cut, if it is a small material, you can polish it yourself, and there are tools on site.

Generally, designers are masters of carving, and they don't have a deep understanding of stone nature, and the finished product is not spiritual. The work is like your own child, and you naturally have to carve it yourself.

Ouyang's choice of material was not big, so she quickly found a workbench and began to grind the rough stone.

She first used a power tool to attach a diamond drill bit to remove impurities and waste from the rough, and then used a diamond assorted file to trim the shape in detail. Use round sandpaper to grind a large area from coarse sand and fine sand, and finally use a round cloth wheel to wipe the polishing paste for a large area of polishing, and the felt grinding head to wipe the polishing paste for detailed polishing.

It can also be polished directly with a rubber grinding head, and finally it can be polished by hand with 1200 sandpaper. As for the gloss and matte, it mainly depends on the meticulousness of the initial grinding, the thickness of the polishing material, the speed of polishing, the strength of polishing, and of course, the quality of the rough.

Ouyang is very skillful in his movements, and after a while, he will complete the initial grinding process with the rough stone he selected, and he is basically quite satisfied. There are a few small cracks, but they are not deep, and the position is also biased, which should not affect the design effect.

"There's still time to refine it and see what's going on inside."

She continued to apply the anointment, coating the surface of the pre-ground semi-finished product with a layer of paste-like polishing powder, the green one is chromium oxide, and the orange-red one is cerium oxide.

Then push and grind, grind the surface with a 2,000-mesh grinding wheel, repeat twice, and mainly deal with the cracked part.

Step 3

The third step is to apply the bristle brush, apply the diamond powder to the surface of the jadeite and then use a stiff brush to throw, and then the fine work, and start to polish the small places that the big tools can't throw. Use bamboo, dip diamond powder, use bamboo chopsticks for larger ones, and use bamboo toothpicks for small places.

Fine polishing, the semi-finished products are coated with diamond powder and then polished with hard leather, most of the domestic cowhide is used, and most of the elephant leather is used in Myanmar. In this way, the general process is basically completed.

Of course, it is necessary to clean up in the end, the purpose is to clean the residual polishing powder on the polished finished product, mainly with an ultrasonic machine to clean, and then wipe with alcohol where it cannot be cleaned.

Finally, it is necessary to wax to protect the surface of the finished agate product, and when the real finished product appears, it must be well maintained. (To be continued.) )