As soon as Li Su's wedding date was announced, an official from the Ministry of Etiquette came to the door the next day to train him on the etiquette of the wedding, but just at this time, Concubine Yang summoned him to the palace, and his mother-in-law taught him a lesson for a long time, which was nothing more than telling him that he would be married in the future, and he must be steady in his life and things, and he could no longer be as foolish as before.

The next day, the officials of the Ministry of Rites came again, but Li Su was dragged by Cheng Huailiang and his gang to the restaurant to celebrate, speaking of which these boys are really crazy, they are reluctant to leave when they go to the restaurant, they sleep in it when they are tired, wake up and drink, and then celebrate in the restaurant for three days and three nights, until one of the guys almost turned into a tragedy with alcoholism, which had to end the carnival.

Li Su has not yet woken up from the carnival of alcohol, and the official who persevered in Chapter 88 of the Ministry of Rites and Steelmaking (I) came again, but God destined his errand to be extremely difficult, this time it was the Sui State Lady's Mansion that sent someone to find Li Su, of course Li Su couldn't help but go, so he could only board the carriage and go away in the resentful eyes of the Ministry of Rites official......

In the next few days, Li Su didn't have time to do any etiquette training, King Hejian, King Jiangxia, Li Ke and other people close to each other, lined up to entertain Li Su, as a person who came over, to explain the matters to be paid attention to in Li Su's married life, and Princess Hejian and Princess Jiangxia told Li Su to treat the bride well, not to have any knots because of the other party's low background, although their worries were superfluous, but Li Su was very moved, and could say these words to him, It shows that people really treat him as a close junior.

After more than ten days of hurrying, Li Su was finally free, and the official of the Ministry of Rites was so excited that he could finally get this errand done, but he didn't expect that at this time, the people from the Ministry of Industry intervened sideways, and even sent someone to invite Li Su, saying that he was ordered by Duan Lun to ask him to help the Ministry of Industry improve the technology of iron smelting and steelmaking.

Now the officials of the Ministry of Rites are gone, thinking that Lao Tzu has been here every day for more than ten days. In the past, the people who came to Chapter 88 to smelt iron and steel (I) and invite King Liang couldn't afford to offend the Ministry of Rites, so they didn't dare to stop them at all, but now your Ministry of Industry also wants to rob people? Everyone is at the same level, and our Ministry of Rites doesn't need to be afraid of you, so you have to come first and come later, okay?

The official of the Ministry of Rites was unhappy, and immediately quarreled with someone from the Ministry of Industry, and the official of the Ministry of Industry also received a strict order from Duan Lun, telling him that he would invite Li Su over no matter what, so he refused to give in. The officials of the two ministries quarreled more and more fiercely in Li Su's hall, and in the end they didn't know who made the first move, anyway, the two of them changed from a civil fight to a martial fight.

Although both of them were scribes, officials of the Ministry of Human Resources and Industry came and went outside in the wind and rain every day. The body has long been trained, so under three fists and two feet, the weak scholars of the Ministry of Rites are cleaned up. When Li Su heard the report from his subordinates and came out to persuade him, the poor official of the Ministry of Rites had already let the doctor carry him away, and in desperation, Li Su could only follow the people from the Ministry of Industry.

Last time, for the sake of patent law, Li Su promised Duan Lun to help the Ministry of Industry improve the technology of iron smelting and steelmaking. Originally, as soon as the patent law was passed, Duan Lun wanted to find Li Su. completed the conditions promised to him, but who knew that Li Su was going to get married, and he also knew that Li Su must be busy, so he endured it for more than ten days and didn't go to Li Su, until today he received the news and knew that Li Su was okay today. Then he sent for him.

Duan Lun had been waiting for Li Su in the Ministry of Industry for a long time, and as soon as he saw him come in, he immediately took Li Su to a large workshop behind the Ministry of Industry, this workshop was a little special, because the craftsmen in it were all high-grade officials. They were all promoted to technical officials because of their skill, and the content of their work was to use their exquisite skills. Improvements to current processes or technologies. It is equivalent to a research institute in later generations. Li Su knew about the existence of this big workshop when he first came to the Ministry of Industry, but because of secrecy, without Duan Lun's permission, even he, the prince, could not enter.

After entering this large workshop, Li Su looked around curiously, and found that it covers a huge area, and according to the different industries, it is divided into many areas, such as papermaking, construction, weaving and dyeing, ceramics, etc., and there are as few as three or four people in each area, and dozens of people are busy or discussing, which looks like a very busy scene.

The smelting area they were going to was in the most central position, and it was still far away, and Li Su saw several tall furnaces standing there, and there seemed to be people walking around on them. Li Su knew that this was a blast furnace used to make iron, and the technology of blast furnace ironmaking had appeared in the Han Dynasty, and had developed into a very mature iron-smelting technology in the Tang Dynasty.

"Jiao Xing, the director of the Ministry of Works, see Lord Shangshu!" The director in charge of the smelting area saw Duan Lun and immediately ran up to salute, this Jiao director has gray hair and looks like he is over sixty years old, he may have been smoky and burned all year round, his two cloudy eyes are red, and his back is slightly hunched, but his spirit looks good.

"Director Jiao doesn't need to be polite!" Duan Lun smiled, then stretched out his hand and pointed at Li Yu and introduced, "This is the famous Liang King Li Liulang, who came to help you improve your smelting technology this time." ”

Hearing that the other party turned out to be King Liang, Master Jiao was startled and immediately bowed down to salute, but when he heard that Li Su came to help them improve their smelting techniques, this old Jiao's eyebrows were slightly raised, and a hint of disdain flashed in his eyes, but his face was not revealed at all.

"Master Jiao, can you take me to see this blast furnace for iron smelting first?" Li Su took in the other party's reaction, but he didn't break it, but pointed to the blast furnace with a smile and said.

Hearing Li Su's words, Master Jiao was stunned for a moment, and then said with a smile: "If Your Highness is interested, Your Highness will be honored!" ”

As soon as they approached, Li Su felt a wave of heat coming to his face, and then looked at the smoke billowing above the blast furnace, and it seemed that the furnace inside was burning.

"Your Highness, this is the blast furnace for iron smelting, we superimpose the fuel with iron ore and limestone layer by layer, ignite the fuel inside, and then blow air from the bottom with a blower, when it reaches a certain furnace temperature, the iron in the ore is heated into molten iron, which flows out from below, which is very common pig iron. Now it is making iron with the coke that has just been delivered, and the coke is growing new fuel, so what we need to do now is to find out its character and facilitate large-scale application in the future. "The director of coke didn't know that the coke was made by Li Su in front of him, so he introduced the coke in such detail.

"Hehe, Master Jiao, you may not know that this coke is the masterpiece of His Highness." Hearing Jiao's words, Duan Lun said with a smile.

"Oh?" Director Jiao glanced at Li Su with some hesitation, he had also heard of Li Su's name, and knew that this prince was good at making weapons, but iron-making was different from others, this was all real experience, not that it could be done if he was smart, but looking at Li Su's age, it was impossible to have any experience in iron-making, so when he heard Li Su come to guide them in iron-making just now, he would be so disdainful.

"Your Highness is talented, the little old man doesn't know that the coke is made by His Highness, but it makes you laugh." Jiao said with a bow, as a craftsman who has been smelting iron all his life, of course he knows the importance of the appearance of coke for ironmaking, this coke has good air permeability, and can support the stacking of a large amount of iron ore, the most important thing is that using coke to make iron can increase the furnace temperature, so that the quality of the iron is better, and the amount of iron produced is also higher, and it is not like charcoal, which will make the iron too brittle, which can be said to be the best fuel he has seen in his life.

"Hehe, it's okay!" Li Su saw that this Jiao was in charge of his attitude and immediately became more respectful, and he was quite proud in his heart, the other party's respect just now was only because of his status as a prince, and the current respect was the respect for his own talents, and the meaning of these two kinds of respect was completely different.

"Master Jiao, these should be used for wind blowing, right?" Li Su stretched out his hand and pointed to the row of skins next to the blast furnace, which were stretching and shrinking in reciprocating motion, and the gas outlet was connected to the bottom of the blast furnace with an iron pipe, and it was several horses that provided power for the skins.

"Your Royal Highness, this thing is called a water row, and it is indeed used for blowing wind, because it is generally driven by water power, so it is called a water row, but because the blast furnace here is only for experiments, it does not really produce iron, and it is not used much, and there is no water source around, so it is driven by horsepower, so it can also be called a horse row." Director Jiao stepped forward and introduced.

"Oh~, I have a question I want to ask Master Jiao, when making iron, is the higher the temperature in the furnace, the better?" Li Su said with a smile, although there are not many things he can improve in this blast furnace ironmaking, but there happens to be one in front of him, and with this improvement, he can also shock the craftsmen of Jiao Gongzhi and let them know their talents, so that they can better command them in the future steelmaking.

"Uh~" Director Jiao was stunned, he was still not used to Li Su's jumping thinking, and he asked about the water drain just now, why did he run to the furnace temperature all of a sudden? However, after all, he has been doing iron smelting all his life, so he opened his mouth to these questions, "Your Highness Qiqi, if you don't consider the degree of burning resistance and cost of the furnace, the higher the furnace temperature, the better, such as the kind of coke you made, Your Highness, one of its biggest advantages is that it has a higher temperature than when charcoal is burned, and it is also more resistant to burning." ”

After Li Su heard the other party's answer, he laughed and said: "Master Jiao, since you know that the higher the temperature, the better, but why do you still blow cold air inside, isn't this like pouring cold water into a pot of boiling water, how can it be possible to make the furnace temperature inside reach the highest?" ”！！！