It seems hard, but it's not that hard. Song Jiuzhi said that the technology of this era was backward, but if the iron output of a large country was only 1,000 tons, then there must be some serious problems in the middle. didn't leave immediately, and arrived at Kaifeng Mansion again. He didn't want to deal with the two kings, so he couldn't just go up the mountain and go to the countryside in a daze, and he went to Xiangzhou Tiekeng to take a look, and he saw the problem. He is not a god.

Zhao Kuangyi received him in the lounge, and let the officials serve tea and fruits, which cannot be regarded as making things difficult for Song Jiu, in this era, it is too meaningful to add a million catties of iron. Song Jiu got straight to the point and said: "Second king, the minister wants to take a look at the Salt and Iron Division." ”

"Salt and Iron Division?"

"If you don't make an overall understanding, it may not be useful for the ministers to go down and read it."

"Okay."

"Second, I request the imperial court to re-issue the edict, and the right of the quasi-ministers to inspect the pits on Hebei Road."

"Song Jiu!"

"Second king, I know that this request is very excessive, but it is not really to inspect all the pits and mines in Hebei, the first I want to see the operation of one or two iron pits, the second I want to see the situation of cast iron steelmaking, and the third I want to see the situation of coal mining, but quickly return to the capital. The minister's time is also precious, and the three years will be reached, and then the money must be paid to the court. ”

"Why do you need to look at steelmaking and coal mining?"

"The iron production is small, and the minister has not seen it now, so he can't judge, but it is likely that the iron of iron ore cannot be completely smelted, and there are many iron impurities smelted. As for steel, steel and iron are substances with different properties, and good steel is an iron-carbon alloy with a carbon content of no more than 2%. ”

"Charcoal?"

"It is the carbon next to the stone word, not the charcoal that the folk say, with it, the strength of the steel can be increased, so the Mo knife of the Tang Dynasty can split the war horse in half with a knife. If you add some other elements, it is not easy to rust, but the strength of that kind of steel is not very high. Changing to other different elements can increase strength, corrosion resistance and toughness. Song Jiudao. In fact, with the help of some processes in the Song Dynasty, it is theoretically possible to add carbon, chromium, manganese, molybdenum, silicon, and tungsten to steel. There are two prerequisites for this, the first must be that the imperial court provides R&D funds and manpower, and individuals cannot afford such huge R&D costs. Secondly, although various types of steel can be studied theoretically, whether it can be mass-produced is one thing, and the cost is another. In addition to the open mind, some of the latter alloy steels can not be realized in this era, and the actual use is not very large, the important thing is still iron-carbon alloy steel, and he has forgotten a lot of theoretical knowledge, and he does not remember it completely, and it will be very difficult to set the modern technology of later generations to the original process of the present.

Not in his position, not in his position.

If it weren't for the fact that the buildings on the sandbar would use a lot of steel in the future, he wouldn't want to do more.

Feel free to say it lightly.

It doesn't matter if you say it or not, there is only one sentence, steel and iron are substances with different properties, and Zhao Kuangyi can't understand the other explanations.

"Grid?"

"This little Taoism is the study of these things."

"If you can increase one million catties of iron, this official will correct your name for this little Taoist in the future." Zhao Kuangyi said happily, and said: "Song Jiu, re-change the edict, this official does not have that right, but I will report to the imperial brother, it is not difficult to think about it." But you must pay attention to one thing after you go down this trip, choose a few brave people from the river to be your attendants. ”

"Guards?"

"Squire, what a guard! The imperial court will also send two soldiers to protect your safety, but the country must have rules, and the number of guards depends on the rank of the official, but the following things will be a little complicated. His Majesty's edict to give you the right to inspect is to facilitate you to have a comprehensive understanding. But it will make the people below misunderstand what you are going for. If you are a few years older and have a slightly higher official position, you will not be in great trouble, although you will have trouble. You can't do it yet......"

"The two kings said that there will be ink greed in the pits below? What do you not deal with? By the way, the water is clear and there are no fish. ”

"What water is so clear that there are no fish! It's not what you think, in short, if you're smart enough, you can see it when you go down and look at it, and if you're not smart enough, don't bother, come up with a solution is your main thing. If you go down and make some disputes, then the official and His Majesty will not be able to protect you. ”

Zhao Kuangyi said that this sentence has two deep meanings, but unfortunately Song Jiu didn't hear it.

He took Song Jiu to the Third Division, and it wasn't until another person came out that Song Jiu faintly felt the caution of the Song Dynasty this time, that is, Li Chongju, the envoy of the Third Division. However, after hearing about Song Jiu's miscellaneous affairs, Li Chongju saw that Song Jiu was still not serious, and his face seemed to be smiling, and his expression was quite strange.

Zhao Kuangyi didn't smile and was always very serious.

It's not forced, it seems that this kid still has a back hand, saying what kind of coal (coal) and what kind of steel. Could it be that this physicality is so magical? But he didn't ask, for fear of being disappointed, and for fear of forcing Song Jiu to be anxious.

The two bigwigs took Song Jiu into the three divisions of salt and iron, the three divisions are divided into salt and iron, degree branch and household department, salt and iron is the head of the three divisions, in charge of seven cases, soldiers, crest, commercial taxes, salt, tea, iron, and design, and the iron case is divided into gold, silver, copper, iron, cinnabar, alum, green alum, charcoal, tin, and drum casting. Seventy percent of all the family foundations of the Song Dynasty were in this salt and iron department. The information that Song Jiu wanted to see was in the Iron Case Department of the Salt and Iron Division.

There are many officials who are busy, nine times out of ten they see Zhao Kuangyi and Li Chongju coming, they have to be busy if they are not busy, there are very few real officials, there are many small officials, if there is a chance, Song Jiu's students may enter here as small officials in the future. In addition, there are many miscellaneous ones, and there are even one or two small yellow doors that occasionally convey news back and forth.

Song Jiu looked at it with a little curiosity.

Zhao Kuangyi and Li Chongju are also looking at him, curiosity is doomed, any ordinary person who goes to such a national central institution will be a little curious, they are looking at Song Jiu's expression, if they are like Grandma Liu, then it will be the same thing for a lifetime. These are two words, bearing!

They thought it was too amazing, it was just a business building in Song Jiu's previous life, a slightly higher-grade business building.

Song Jiu's expression was curious, but he was very calm, so calm that it almost made Zhao Kuangyi and Li Chongju feel that their eggs hurt, and they couldn't help but smile, although this kid has no ambitions, he is a thief. Brought to the Iron Case Department, Li Chongju asked the officials to bring the considerable iron and the charcoal archive together.

Song Jiufu looked at it in the information.

If it weren't for the ancient Chinese that I had studied for a year, I would have a headache when I read these materials, not mentioning the traditional writing, and it was written vertically, and there was no punctuation, and there were no Arabic numerals, which would make people dizzy after reading for a long time.

Song Jiu looked through it carefully, it was really watching. What else should I do?

Zhao Kuangyi and Li Chongju didn't disturb him, Li Chongju ordered someone to bring a cup of tea and put it next to Song Jiu. Song Jiu was fascinated by it, and casually picked it up and drank it. The officials and officials in the iron case were a little displeased when they saw him rude, if it weren't for the two bigwigs here, they could immediately blast Song Jiu out.

Song Jiu looked at it, the Song Dynasty ruled the north at this time, and the iron pits were also in the north, mainly divided into three, the first is the Laiwu area of Yanzhou, eighteen administrative offices, that is, eighteen iron ore mining areas, according to the reason, there are a lot of them, but the eighteen iron mines in the year of iron production are less than 500,000 catties a year, and an iron mine produces fifteen or six tons of iron a year! With such a large output, no wonder Zhao Kuangyi was anxious when he heard that he wanted 400,000 catties of iron. Look at this output, can you not be in a hurry? followed by the Xuzhou area, even less. It is mainly in the areas of Xing, Xiang and Ci in Hebei Road, which accounts for more than half of the country's iron production. There are also some small fragments left. At the same time, it was found that Zhao Kuangyi's statement that the annual iron output was less than 2 million catties was incorrect. This two million catties is the amount of iron in the class, that is, the amount of iron handed over by the pits of the imperial court, and some of it must be lost to the people. There are also some private iron pits, but the number is even more pitiful. It may be that the iron that Blacksmith Li bought to build the pulley block is these lost private iron and private iron pit iron. But the total output will not exceed four million catties.

Some look selectively, some look carefully, some are irrelevant, and they flip through.

What made him strange was that he hadn't seen any record of the relevant smelting techniques.

"Little way." Song Jiu smiled bitterly, Dong Zhongshu killed people, and another Zhu Xi came out later, can China get better?

I was in a bad mood and started throwing it around, put down the iron part, and started to look at the coal part.

After putting down the file, Zhao Kuangyi and Li Chongju stared at him. Coal made them ignore it, and all they saw was a lot of iron ore.

Song Jiu said: "The second king, Envoy Li, the original output is really so small, no wonder there are many soldiers on the front line who use cotton armor, paper armor, leather armor, and inferior armor. ”

The number of troops in the Song Dynasty at this time was not large, there were only 100,000 forbidden soldiers, and there were only 100,000 box soldiers. It's not easy, for example, armor, the weight of armor varies from different arms, the average is about fifty catties, but it must be hammered repeatedly, there is a tempering process, one less time, five or six times, it will take more than 100 catties of iron, if it is refined a little, ten times and eight times, it will take two hundred catties of iron. In addition, the weapons in the hands of the soldiers, such as arrows and guns, are less iron, only the tips are iron, but the amount of iron used in the sword is also very large, and the requirements are higher. Therefore, a good Pu knife on the market costs more than three dollars. More than a dozen catties weigh, nearly 2,000 wen, and one catty reaches 200 wen. If you are really fully armed to the teeth and use the best steel, a soldier needs at least 300 catties of iron, nearly 300,000 soldiers in the country, hundreds of millions of catties! In the Song Dynasty, it took more than 50 years for this iron production to be satisfied. Folk rumors of Taizu long fist and Taizu stick method, saying that Zhao Kuangyin used a coiled dragon stick, it is estimated that the iron is insufficient, Zhao Kuangyin used a wooden stick instead of a weapon to smash the enemy's head. Dissect the illusion on the surface, and the truth will make people laugh and cry.

Song Jiu's arrogant attitude made some officials dissatisfied, and a small official said: "Boy, what nonsense are you talking about, if the big Tang Dynasty is as far as the Green Mountains in the west, as far as Goryeo in Liaodong in the north, as far as Jiaozhi in the south, and as far as the sea in the east, the annual iron output is not much higher than that of my dynasty." ”

"The times are progressing, for example, the stone coal, the Han Dynasty discovered it, why did it gradually use it in our dynasty?" Song Jiu suddenly stopped, thought of one thing, and whispered to Li Chongju: "Envoy Li, the officials in charge of the three divisions must have a business mind, do you want to try their talents?" ”

"How do you try?"

"I make a problem, fold a piece of paper a hundred times, and whoever can do it, I will reward him with a hundred gold, and you will reward him with another hundred gold. If it's thinking, you can keep it for inspection, if it's trying it right away, these people can't use it anymore, if it's impossible, then you can reuse it after me for a period of time. ”

"Nonsense...... "Originally, Li Chongju wanted to say, wouldn't it be easy to fold!" It's not a small paper, how much area is the length and width of the paper reaching one zhang, but Song Jiu said that if you rush to try, you can't use it anymore, so keep your mouth shut about the words in the back.

Zhao Kuangyi stood on the side and meditated, and said, "Code, you can give it a try." ”

Li Chongju looked at Song Jiu suspiciously: "If someone really succeeds, don't cry." ”

The emperor will reward you with 100 gold!

"Don't worry."

Li Chongju repeated Song Jiu's words in the iron case.

Sure enough, there was a lot of scolding, scolding Song Jiu for messing around, only half of them were pondering, as for the impossible, almost no one was there, and the rest had to try. Officials don't, they have to be conservative about their identity, mainly small officials.

Li Chongju ordered someone to bring a large piece of paper. In this era, the weights and measures are not standard, and the production of paper is not standard, some are big and some are small, take a large piece of paper, let a servant measure and cut it and put it on the ground, rush over a small official, and start to fold, just a moment, sweat on his forehead like rain.

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