Luo Heng saw Jon coming so soon, and said with a smile: "This is the secret." ”

Jon looked at the dwarf in front of him, and longed for a fireball to be smashed out, Luo Heng was digging yellow clay, and the soil could be burned pottery, and there were two kinds of ceramics, and the white clay could be used to fire porcelain.

There is no porcelain in this world, but there is pottery, and it is the worst pottery.

Ceramics is actually a very esoteric knowledge industry, different metals, under the action of high temperature, will show different colors, the same different clay, different temperatures, and the firing is different.

After the two kinds of clay were transported back, Luo Heng made a pool and prepared the clay for making pottery, there was no stone or anything in the real yellow clay, but it was a technical job, Luo Heng had seen it in the pottery bar in the city, and he learned a little about it.

"Making pottery?" Jon asked, incredulously, pottery for commoners, a grand duke would make.

"That's right. Luo Heng nodded.

Jon still didn't believe it, but when Luo Heng and Mud arrived, Jon left this side disappointed.

Luo Heng found two fox people, two cat people, two rabbit people ~ orc female slaves, and asked them to be with the mud, one by one, that is, the mud was repeatedly beaten.

Luo Heng made a mold by himself, a mold for making pipes, and making pottery pipes does not need to be on a rotating turntable like making porcelain.

Because the clay pipe needs to be spliced together one by one, size is crucial.

Luo Heng found a carpenter and made two sets of extrusion molds, the mold making is very simple, the outer layer is a pipe style mold, but one side is concave and the other side is protruding.

There is an extrusion mold in the middle, a polished iron rod in the middle, and a hole in the middle of the wood mold extruded inside, and the reconciled mud is put into the mold, and the outer mold is divided into two and covered with an iron hoop.

And there are some pores under the outer layer of the abrasive to prevent the presence of air bubbles inside.

It took most of the day for these simple things to be cleared inside an empty house.

The whole mold was transported, and together with the base, it weighed hundreds of pounds, and the length of a mold was half a meter, and the thickness reached one centimeter and a half.

Luo Heng personally squeezed it once, when the mold was completely pressed down, the excess mud was squeezed out, picked up an iron piece, scraped the excess mud on the mold, and then Luo Heng carried the mold down and put it in a dry room.

After opening the mold inside, Luo Heng saw that there were some trachoma in some places, so he manually repaired it with good mud.

When the outer layer of abrasives is lifted, a section of the pipe made of dirt is successful.

Luo Heng touched the humidity and found that he could dry some.

Then Luo Heng adjusted it, and then asked several orc female slaves to make it separately to see who made it well.

Luo Heng almost taught the six orc female slaves by hand.

The next day, Luo Heng basically moved his mouth, and the two giants carried the clay, and the yellow and white ones were separated.

Luo Heng found a large wooden barrel again and stirred the white mud into a viscous ~ thick liquid.

The temperature in summer is very high, and in two days, it has almost dried in the shade, Luo Heng used the mud made of white mud, evenly brushed on the inner ~ wall of the pipe, and dried it once and brushed it once, three times in a row.

Several other pipes were painted with this mud on the outside.

A stone kiln was quickly erected, and two floors of refractory bricks were used inside.

Refractory bricks are indispensable for smelting and forging, so there is no shortage of them.

On the seventh day, the dry pipes were put in the furnace, and some charcoal was sprinkled in the pipes, Luo Heng took out the all-copper blower, and Sodin and Harding also came.

"Harding, Sodin, you two control the temperature, and gradually increase the temperature to keep the black iron melting, the heating process is about twenty hours, and the temperature will cool down after an hour, is it okay?" Luo Heng said.

"No problem. Thordin and Harding assured that after studying forging for so many years, they would know what temperature they would be when they looked at the color of the flame.

Luo Heng had actually heard that the temperature at which porcelain was fired was about the same as that of pig iron melting, but what Luo Heng didn't know was that the temperature required for black pottery was very low.

"This thing has to be kept secret, it's easy to make millions of gold coins a year for us dwarves. Luo Heng knew how popular ancient Oriental porcelain was in the West.

Cheney ...... I'm afraid. When Thordin heard this, he trembled and was excited.

"Don't be afraid, this is just an experiment. Luo Heng patted Suo Ding on the shoulder and said.

However, in order to keep it secret, Luo Heng issued a ban that no one else was allowed to approach the area where the pottery was fired for 500 meters.

Charcoal, a lot of charcoal, good charcoal is sent, these are all essential materials for the forging place.

Luo Heng also pays attention to it all the time, firing these things, the main thing is to prevent cracking, so Luo Heng extended the heating process to twenty hours, anyway, Luo Heng made the burning in the pottery bar There are bubbles, the boss said that the heating is the key, and the explosion will be over during the heating process.

However, Sodin and Harding controlled the temperature very well, at least there was no obvious cracking, and the inferior fire-type magic crystal powder prepared by Luo Heng was not used.

Twenty hours of warming, one hour of warming, then closing the furnace.

It takes another dozen or twenty hours, and the furnace also needs to be closed slowly, otherwise it will explode when it is hot and cold.

Twenty hours later, the cave was opened, and after it cooled down, Luo Heng entered it in person.

"It looks like the kiln needs to be changed. Luo Heng found that some of the middle ones were burnt and some were slightly deformed.

However, when the two intact snow-white pottery pipes were taken out, there were still some red lines on the pottery pipes.

Thording and Harding were stunned, and carefully stroked the pipe, which was as smooth as jade, and the red lines on it were even more astonishing.

"This red color is copper powder, different ore powders, different colors. Luo Heng said in a low voice, in fact, Luo Heng used copper oxide powder.

"Cheney, this, this must be kept secret, kept secret. Harding looked at the pure white pipe, which was very smooth.

"That is, this pottery workshop will be handed over to you to be in charge of, see this plate, and this bowl, this wine glass. "Luo Heng made a few bowls and cups made of white clay, there are dozens of them, and only about one-third of them are made.

"It's simply ...... Cheney, do you want to inform the teacher?" Harding said, swallowing his saliva.

"Inform me. "Can Luo Heng say no notice?

Harding and Sodin began to take charge of the pottery workshop, and Harding remembered that when he was logging somewhere in the back mountain, he saw a large ~ piece of white soil in the river valley.

Luo Heng immediately sent orc slaves to fetch soil, and after the soil was retrieved, it had to be carefully screened, then rinsed with water, and finally the finest precipitated was used to make porcelain.

The clay pipes are brushed with white mud, and they don't leak at all when they are fired, but they explode every time, and the temperature is high in the middle, and the middle of Harding and Sodin is reduced when they fill the charcoal, and the cave has expanded a lot.

"It's ....... Ten days later, at noon one day, when Jon and the others walked into the second floor of the restaurant, their eyes bulged out.

The key to the production of porcelain is the temperature, and there is the stirring wheel, these Luo Heng have taken out, after three firings, Harding and Sodin have a lot of experience, and various metal ore materials have also been used, cyan, red, green, pure white.

chose a good condition, Luo Heng placed it directly on the dining table.

"What is this ....... As soon as Jon's mental power moved, he found that this kind of thing was a lot of metal, not jade, and it was extremely delicate to touch.

Red, gold, silver lines.

Even a few of Jon's students were cautious.

"Dinner. Luo Heng opened his mouth and shouted.

When the huge white plate with a diameter of more than 50 centimeters, the edge of the plate is red flowers, and then there are colored plates, and there are golden plates.

"Duke Cheney!" Jon asked anxiously when he saw Luo Heng's triumphant appearance.

"Come, cheers!" Luo Heng picked up a goblet, which was also porcelain, but this porcelain was very thin, like jade.

"Your Excellency. Shirley was also stunned, stroking the pink plate in front of her, which she had never seen before.

"Eat, eat, eat, Jon, let's talk about business. Luo Heng said with a smile.

Jon didn't care about aristocratic etiquette or noble magician etiquette, and ate quickly.

"Jon, how much do you think these things are worth?" Luo Heng asked.

"This plate looks like jade, but it is obviously manufactured, so according to the price of jade, one-third, but because of the color, half of the price of jade is acceptable, about fifty gold coins. Jon spoke.

"No matter what color this plate is, as long as it is the same size, five gold coins each, this large twenty gold coins, this cup, ten gold coins ....... And this kind of thing can prevent anything from corroding, and I exclusively supply it to your family. Luo Heng said with a smile, secretly saying in his heart, sure enough, there is no one in the hands of our ancestors who is not valuable.

"Is it made of dirt?" Jon asked guessingly.

"Hehe, you're smart, but I hope this thing doesn't leak out, because I'm exclusive to you, all of the human world. Luo Heng said with a smile.

"I need to take one back with me. Jon obviously shut up, how many nobles are there in the entire human race, one nobleman is one, and the family is developed.

"Yes. Luo Heng nodded in agreement.

Jon carefully stroked the plate in front of him, and after scanning his mental power, he had a guess in his heart, but looking at Luo Heng's smiling face, Jon knew that even if his family tested it, once it was announced, his family's loss would be the greatest.

"Duke Cheney, I swear I won't tell you about it. Jon spoke.

"Hehe, whatever you want, it's all made of clay anyway, it's just a complicated process, if your family experiments it, it's a big deal that I will announce the secret method." Luo Heng smiled and made his words clear.

"No, no one will know what these things are made of. Jon thought of his family and affirmed.

"Duke Cheney, why don't you sell it yourself?" asked Jon.