Ge kiln is the black tire celadon, the glaze color is pink and blue, the glaze surface is more open with stripes, and there are characteristics such as "purple mouth iron foot". The younger kiln is the white-tired celadon, the glaze is verdant and delicate, especially the pink and plum green are loved by the world, representing the mainstream of the Longquan kiln system.

Longquan celadon came out of Liutian at the beginning, went to the county sixty miles, and then there was Jincun kiln, which was more than five miles away from Liutian, and there were white geese, Wutong, Anren, Anfu, green winding and other places.

Longxi Fang is located on the bank of Meixi in Liutian, in Longxi Fang, Wang Jin (word Shimian), the owner of Longxi Fang, warmly received Lu You.

After visiting Longxi Fang, Lu Yo found that although the celadon produced by it was also quite good, it lacked characteristics.

"I want to make the Chuzhou kiln the eighth most famous kiln in the Tang Dynasty, does Shi Mian think it is feasible?" Lu Yo suddenly asked Wang Jin.

"Longquan porcelain raw materials are sufficient, water transportation is convenient, and it is definitely feasible." Wang Jin said excitedly when he heard this.

Wang Jin actually has the "ambition" to make the porcelain industry bigger and stronger, but he has not been able to make a breakthrough, and if Lu Yo has the support, then he will be more likely to succeed.

Luyo did not know much about the porcelain industry, and most of his knowledge was obtained from documentaries, science and education programs, documents and materials, so he needed the support and help of people who were very familiar with porcelain making.

"Shi Mian is willing to work with me to improve Longquan kiln porcelain and make Longquan kiln famous?" Lu Yo asked Wang Jin again.

"I'm willing." Wang Jin replied excitedly.

So Lu You, together with Wang Jin, improved the porcelain firing process of Longxi Fang, and Lu You's first step was to imitate the Ge kiln, that is, the black tire celadon.

The quality and characteristics of porcelain depend mainly on the raw material, that is, the porcelain clay. Longquan porcelain clay raw materials are mainly divided into two kinds: one is porcelain stone raw materials, deeply weathered porcelain stone raw materials are used to make tires, and shallow weathered porcelain stones are often used for glaze making; The other is purple gold soil, that is, a purple-brown clay with high iron content, often containing a number of inclusions of quartz and feldspar, which can be used as a tire or glaze.

Purple gold clay is the main raw material of black tires in the tire, and it can be used in the glaze to make the glaze show a variety of hues because of its iron content.

Lu Yo asked Wang Jin to use purple clay as a raw material to test the burning of black-tired celadon, and Wang Jin immediately led the craftsmen of Longxifang to start a long road of experimentation.

In the blink of an eye, it was the second year of neutralization.

Spring, the eighth day of the first month, Chengdu is in the line, Tang Xizong dismissed Gao Biao and all the envoys, and still used his salt and iron to transport the envoys. With Wang Duo and Zhongshu Order, all the Taoist camps are unified, and the right to know the Yongping Army Festival is the envoy. Listen to Wang Duo's self-appointed generals, with the prince and young master Cui Anqian as the deputy capital.

In the Daming Palace of Chang'an, the Great Qi Chengtian should be sent to the Holy Ruiwen Xuanwu Emperor Huang Chao to summon Zhu Wen to the front.

"Zhu Sanlang, I have named you the assassin of the same state, and you can take the same state by yourself." Huang Chao said to Zhu Wen.

Tongzhou is located in the east of the Weibei Plain in Guanzhong, the confluence area of the Huang, Luo and Wei rivers, the land is fertile, it is the throat of Chang'an leading to the Central Plains, and it is an important town of Sanfu.

"No." Zhu Wen happily surrendered.

In Longquan Liutian Longxi Fang, Lu You's carefully looking at the black-tired celadon bowl newly fired by Wang Jin.

"It's still not good, the glaze juice is too much, which completely covers the tire color, and it needs to be improved." Luyo said dissatisfied.

"No." Wang Jin was a little disappointed.

Lu Yue saw that Wang Jin was a little disappointed, so he comforted: "Shi Mian don't be discouraged, the black-tired celadon fired this time is very close to my expectations, and I believe that we will be able to succeed in the experiment soon." ”

When Wang Jin heard this, he regained his confidence and went to the test again.

At this time, a servant reported to Lu Youyu: "The envoy is enlightened, and the coppersmith says that the things that the envoy needs have been cast. ”

"Hmm." Lu Yo nodded and said, "Order someone to send it to the brick kiln in the south of the city along with dolomite and charcoal." ”

"No." The servant replied.

In the brick kiln in the south of Longquan City, Lu Yo personally instructed the craftsmen to use the dry retort furnace to dry the coal to make coke and tar.

The first batch of coke and tar was soon baked, and Luyo checked the quality and thought it was okay, so he ordered the craftsmen to continue processing.

The next day, the artisans had produced a lot of coke, and Luyo personally instructed several other craftsmen to start calcining the dolomite.

On the eighteenth day of the first lunar month, Luyo successfully fired the first kiln refractory bricks, so Luyo began to manufacture "alkaline bottom blowing converters".

In fact, the "alkaline bottom blowing converter" is not complicated, that is, the alkaline refractory brick is used as the lining, the steel plate is used as the shell, the bottom is connected to the bellows, and the furnace body can be moved and tilted.

After Lu Yo made the "alkaline bottom blowing converter", he summoned all the bosses of the sword casting workshops in Longquan together and smelted a furnace of steel on the spot to show them.

When the owners of the sword casting workshop inspected the quality of the steel made using the "alkaline bottom blowing converter", they all showed shocked expressions.

"How did you do that? How is this furnace so magical? ”

"It's amazing, does the envoy know immortal arts?"

"It's unbelievable that you can turn iron ore into steel so easily."

Lu Yue saw that everyone was talking about the "alkaline bottom blowing converter", and the more he talked about it, the more outrageous it became, so he said: "Do you believe that you can now cast high-quality and low-cost weapons?" ”

"Believe." The owners of the Sword Forge Workshop nodded excitedly and said.

At this time, Zhou Ming pointed to the "alkaline bottom blowing converter" and asked Lu You: "Dare to ask the envoy, what is the price of this furnace?" ”

When the owners of the Sword Casting Workshop heard this, they all looked at Lu You, and they all wanted to add an "alkaline bottom blowing converter".

"I won't sell this furnace." Luyo shook his head and said.

"Huh?"

Everyone showed disappointed expressions when they heard this, only Zhou Ming asked Lu You, "I'm afraid that the envoy is not just for us to increase our knowledge, right?" I don't know what the envoy is planning? ”

"I intend to work with you. ”

When everyone heard this, they showed joy again, and they all asked Lu Yo how to cooperate.

Lu Yo said: "I will jointly invest with you to reopen a swordsmithing workshop, and the profits will be distributed according to the proportion of capital contribution. ”

Everyone's expressions darkened when they heard this, they couldn't believe Lu You, after all, the difference between their status and Lu Yo was too great, and even if Lu Yo didn't give them any money, they would be helpless.

Seeing this, Lu Yo said with a straight face: "You can rest assured, I can make a contract with you and swear an oath of blood sacrifice to the sky." ”

When Zhou Ming heard this, he thought: With so many people co-funding, it must not be much money, so I will gamble.

Zhou Ming thought about it and said to Lu You: "I am willing to cooperate with the envoy." ”

The others then figured it out and expressed their willingness to cooperate.

The reason why Lu Yo wanted to cooperate with all the swordsmithing workshops in Longquan was because the mass production of high-quality and low-cost weapons required a large number of experienced swordsmiths.