Chapter 319 Gold Washing Water

Facing Zhao Jinmai's complaint, Liu Yifei smiled and comforted her: "Brother Yi was just joking with you, just don't take it seriously."

Seeing this, Zhao Jinmai could only mutter resentfully: "I knew you were reluctant to talk about him..."

She spoke vaguely, and the audience didn't hear clearly, but Liu Yifei understood what she was moaning.

Shaking her head helplessly, Liu Yifei looked at Li Yi and asked with a smile, "Brother Yi, can you help us make some skin care products with bletilla striata if you have time?"

"It's easy to say, by the way."

Li Yi agreed casually.

Seeing that he agreed, Liu Yifei smiled at Zhao Jinmai and said, "Okay, Brother Yi will make some skin care products for you."

Hearing this, Zhao Jinmai was satisfied and joked: "It's still your words that work."

While they were talking and laughing, Li Yi had already glued the gold thread pattern on the bowl tire.

The next thing he has to do is to burn all the gold wires on the golden tire.

Putting the bowl tire glued with gold wire on a crucible, Li Yi turned around and lowered the temperature of the kiln to 800°C.

Then, he picked up the bowl tire with pliers and sent it into the kiln.

Seeing that he sent the bowl directly into the kiln without any fixation, Geng Wanhua couldn't help reminding: "If you put it in like this and burn it directly, the pattern will fall off."

This is the experience accumulated by the expert group after many experiments.

But Li Yi casually pointed at the mouth of the kiln: "Whether it will come off or not, you can see for yourself."

Seeing what he said, both Geng Wanhua and Cai Yi became curious.

Where does his confidence come from?

Is he really not afraid of falling off?

Geng Wanhua glanced at Cai Yi, and then walked to the entrance of the kiln.

He wanted to see the firing situation, Li Yi said so, just as he wanted.

The special structure of the kiln prevents hot air from blowing out of the kiln mouth.

However, the high temperature of 800°C in the kiln still projects a lot of high-temperature rays from the kiln mouth.

Geng Wanhua came to the entrance of the kiln, squinted his eyes, and looked in, but found that it was dazzling and he couldn't see anything clearly.

Master Han at the side kindly brought him a dark lens and handed it to him.

Geng Wanhua thanked him, took the sunglasses and put them in front of his eyes.

With the cover of the sunglasses, he could clearly see the golden bowl tire inside which was being roasted at high temperature.

But after he saw the bowl tire clearly, he couldn't help being stunned.

In the kiln, the bowl was sitting on the crucible end-to-end, and all the gold wire patterns stuck to the wall of the bowl were all stuck to the end of the bowl, and none of them fell off.

Seeing this situation, Geng Wanhua was stunned.

how so?

It's obviously not fixed at all, so why didn't any of those gold wire patterns fall off?

Are they just glued on with bletilla striata glue?

At a high temperature of 800 ° C, no glue is used, how can bletilla striata glue stick to it?

Suddenly, he found that a ball of fire burst out from the outside of the bowl wall, and several sparks jumped out at the same time.

Then, another place suddenly burst into flames, and sparks shot out.

Soon, the golden bowl tires seemed to be setting off firecrackers, and the flames kept shining out.

Seeing this scene, Geng Wanhua suddenly understood.

He looked back at the bletilla striata glue in the glass bottle next to Li Yi's hand in surprise, and asked, "Is there welding powder in there?"

Seeing that he guessed it so quickly, Li Yi was also a little surprised.

But Li Yi didn't deny it, just nodded and smiled: "The bletilla striata melts when it encounters fire, it just serves as a fixation.

After entering the furnace, the gold wire must be welded with flux. "

Geng Wanhua didn't understand: "But then the gold would be impure!"

"It's not a pure gold bowl, why should it be so pure?"

Li Yi didn't take it seriously: "And it's not that it can't be washed off, it's enough to wash the gold water once."

Hearing what he said, Geng Wanhua was stunned for a moment, then nodded: "It makes sense."

Gold washing water is water, that is, sulfuric acid solution, which has a strong corrosion and stripping effect on metals.

The main components of soldering flux are metal oxides and aluminum powder, which will indeed contaminate gold when burned.

But the cloisonne bowl is indeed not made of pure gold, and the gold wires and the surface will be covered with glaze.

So as long as the pure gold luster on the surface can be guaranteed, it is not so important whether the internal adhesion and welding are pure gold.

Li Yi was also observing the condition of the bowl tires in the kiln.

Seeing that the bowl tire was no longer flaming and sparks were shooting out, I used tongs to pinch it out.

At this moment, the golden bowl tire has turned into a "flower bowl", with black spots and gray spots on the sides of the bowl, as if it had been burned as the bottom of a pot.

Putting it aside to cool down, Li Yi took out a brown glass bottle and a glass beaker.

The brown-yellow glass bottle was filled with water. After he opened the bottle, he poured the water into the glass beaker.

Then, he picked up the golden bowl tire and put it into the cooling water just now to lower its temperature.

Afterwards, he wiped off the water and put the golden bowl tire into the water beaker.

The camera zoomed in for a close-up shot, and everyone behind them stretched their necks, watching Li Yi's movements.

I saw that after Li Yi put the golden bowl tire into the water, the burnt golden bowl tire recovered its original pure gold luster at a speed visible to the naked eye.

Seeing this scene, there was a burst of exclamation at the scene.

"Wow!"

In the live broadcast room, the audience also exclaimed again and again.

"Wow! So magical? It feels like magic!"

"What's in that brown glass bottle? How does it feel like you're doing a chemical experiment?"

"H2SO4? Is this sulfuric acid? No wonder it can clean the gold! This thing is very corrosive!"

"Why do I feel that Brother Yi is becoming more and more like a wizard? He can cook, mix rouge, and build equipment. He can easily take out concentrated sulfuric acid. If it is put in the game, it will be a big villain boss! "

The audience was joking in the barrage area, while Li Yi took out the golden bowl tire from time to time to observe.

Seeing that all the discolored areas on the golden bowl tires had returned to pure gold, he took the golden bowl tires into the bucket beside him, brewed them and washed them.

After washing it once, he took the golden bowl tire under the faucet by the wall, rinsed it again, and then took it back.

Later, he wants to order blue, so he has to hold the bowl tire with his hand.

If you don't wash it well, those sulfuric acid solutions will be very bad for your skin if it gets on your hands.

Back in front of the table, he put the golden bowl tire on the table, let the camera get close, and took close-ups for the audience.

The audience was amazed when they saw the golden bowl tire completely restored to golden color.

But when Li Yi saw this, he reminded them: "This is concentrated sulfuric acid, also called washing water, which is the so-called gold washing water in many gold shops.

Its effect is indeed very strong, but it directly corrodes a layer of gold objects, and it will lose grams.

Therefore, if you have gold jewelry, don't take it to a gold shop for people to wash it with this kind of gold washing water.

These gold washing waters can still extract gold after washing the gold. Some profiteers use this method to deceive people. You must pay attention. "

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