After the trading fleet of Liuqiu Island set off in a group, Wang Defa personally went to the Badaohe Ceramics Factory to take a look, and first found that they spent the most time and labor on stirring porcelain clay, and the quality of porcelain clay was not high. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Wang Defa said to Zhang Guoan: "We can't make thin porcelain, bone china is very simple......

Zhang Guoan, the owner of the island, said with some embarrassment: "I just want to compare porcelain art with the Great Song Dynasty...... I forgot that I could compare the types of porcelain with them. ”

Wang Defa is single, and in his spare time, he once played porcelain for a while.

He nodded in understanding, people who have not played with porcelain will not think so much for a while.

He said lightly: "I'll deal with this piece, I have to sell the porcelain to the Great Song Dynasty!" ”

Wang Defa very much agreed with his friend's plan to export luxury goods to the Great Song Dynasty, to make the big merchants consume highly, and then buy goods from small merchants and small households, although he had to let the Song Dynasty government shear the wool, but the idea was completely correct.

Earning money from the rich and buying things from the common people is the right way to develop the economy.

In that world, bone china was the only porcelain species invented in the West.

As mentioned above, porcelain is extremely valuable in the West, and its export history can even be traced back to the Tang Dynasty.

In fact, even ordinary porcelain is valuable, so Wang Zheng and Xiao Er are confident that they can exchange bowls and plates for buffalo.

The profits of porcelain made Europeans blush, and around the 17th century, Jingdezhen's thin porcelain was introduced to Europe, which was a shocking invention, according to the Europeans, "they were thinner than paper, whiter than milk, and more transparent than glass"!

This porcelain is invaluable in Europe. A piece of porcelain can even be exchanged for an army.

What's even more amazing is that this kind of porcelain can even be made into lamps, but it has a more fantastical effect than glass lamps.

In order to achieve a "more transparent than glass" effect, around 1794, the British inventor William Walson added animal bone meal to the clay.

Bone meal can obtain calcium oxide after high temperatures, which is a very mature technique in glass technology, and then in order to obtain the warm milky white color of thin fetal porcelain, he added some bauxite.

Calcium oxide is one of the most important fluxes in glass manufacturing, which can effectively reduce the softening temperature of silica and make it easier to form glass-like substances.

Alumina is a commonly used emulsion agent, which can even give glass a less opaque milky white color.

In this way, they happened to invent a new kind of porcelain, but now this invention belongs to Wang Defa.

Wang Defa knew that the basic recipe of bone china was generally six parts of ashes and four parts of china clay, but it gradually developed into fifty parts of ashes, twenty-five parts of china clay and twenty-five parts of clay, which was the standard formula in Europe until he crossed.

The bone meal of bone china is generally made of cow, sheep, pig bones, etc...... It is better to use beef bones, this ingredient can increase the hardness and transmittance of porcelain, and the strength is higher than that of ordinary porcelain, so it can be thinner than ordinary porcelain.

The greater the bone content, the easier it is to burn during the production process, so the more expensive the finished product.

Bone china is lightweight, fine and hard, twice as hard as ordinary porcelain, not easy to wear and tear, has moderate light transmittance and heat preservation, and the color is a natural milky white unique to natural bone meal, and it is not stained with oil.

Wang Defa asked someone to go to Jingdezhen to dig up the best porcelain clay and buy alum clay...... In this time and space, the Great Song Dynasty mainly used it as traditional Chinese medicine.

During this period, Wang Defa used the pot camel machine to make a mixer, and soon the mixing effect was good, and labor was saved.

At the same time, he took out the largest and most scientific "town kiln" in the space-time porcelain kiln.

This kiln body resembles an egg, with a high front and a low back, wide in the front and narrow in the back.

The top of the kiln is arc-shaped at the kiln head, and gradually descends backwards; The bottom of the kiln is gradually inclined upwards from the kiln head; A chimney is set at the end of the kiln.

Its structure is reasonable, the kiln temperature is high, the sealing is good, and the space is also large, usually about 10 tons of porcelain can be fired at a time.

When Wang Defa played porcelain, some township enterprises were still like this.

Then he began to instruct the Great Song porcelain craftsmen to make embryos.

From grouting to mold pressing embryo, and then to gypsum mold dehydration, the Great Song Dynasty porcelain craftsman is also very familiar with it, so he doesn't need to worry about it.

The key is that bone china is sintered twice.

The first time is to be fired at high temperature, and the second time is to be glazed at low temperature...... Due to temperature control, the yield of bone china is very low, and if it is completely tested by the craftsmen of the Great Song Dynasty, I don't know how much time it will take.

Wang Defa directly launched the gas generator and used controllable gas to sinter them!

In the whole process of trial firing, after the common problems such as dirty spots, cracking, overburning, dirty color, raw burning, and brown eyes that are prone to bone china have appeared one by one, Wang Defa tried repeatedly in the preparation of raw materials, and finally found a relatively good ratio.

The success rate of bone china has risen from 10 percent at the beginning to 50 percent...... In fact, this is an intolerable number for industrial production, but this is bone china!

They want to sell it to the local tyrants of the Great Song Dynasty for ten times the price!

The local tyrants must have liked this kind of bone china, which is light in weight and more than twice as hard as Song dynasty porcelain.

Sure enough, after they took out the bone china products, the so-called Liuqiu porcelain immediately caused a sensation in Lin'an City, and some people even thought that this kind of Liuqiu porcelain was comparable to the five official kilns...... Big businessmen are paying more attention to it than to the good news on the battlefield!

Of course, Wang Defa and Zhang Guoan, the owner of the island, would not care about how much money was sold, for them, it was really just a number.

On this evening, the two of them sat in the yard and enjoyed the coolness of early autumn.

Quietly handed over her son to her maid and went down to the kitchen to cook snacks for the two men.

Her behavior made the Great Song Chef Niang dissatisfied, and a few days ago she praised others for learning Yin Di'an cuisine, but today she doesn't trust others.

After a quiet period of frying and frying, he made eight dishes, let the two men drink slowly under the gaslight, and took the children with him.

Jing Jing saw Wang Defa's workaholic, and knew why he was like this, in this world, only Zhang Guoan could comfort him.

The friendship between men, women may not understand, but the quiet seeing the indifferent smile they showed when chatting made her understand that their friendship is unbreakable.

In fact, Quiet has known this for a long time, and smart women never let their men make any choices in love and friendship.

Two men drink a small drink under a bright gas lamp.

They were indeed delighted.

Their Liuqiu guards lured the enemy deep into the Shandong Peninsula and broke the army of 50,000 in one fell swoop!

More crucially, most of the prisoners this time were civilian ------ (to be continued). )