When everyone watched the fiery red molten iron flowing down the hole, the excitement on their faces could not be concealed.

Mixed up to the point where they have already achieved that they can be happy and angry, but in the face of these molten iron, they still chose to surrender.

"Good! Good! Good! Li Shimin excitedly stepped forward to make a basin of molten iron himself, and he was a little out of breath from the scorching air, and he felt dry in an instant.

But Li Shimin was not affected by this change in the environment, but said three good words one after another.

Li Shimin already knew the daily output of this method, and the previous time, Changsun Jun had already told him that the daily output was about 1,000 catties of molten iron.

What does it mean to produce 1,000 pounds per day?

"Congratulations to Your Majesty, congratulations to Your Majesty, with the blast furnace ironmaking technology, Datang can let go of his hands and feet!" The eldest grandson Wuji was also full of smiles.

How much does iron play a role in production?

This is enough to replace all the wooden farming tools with iron, and even if these are only semi-finished products, they are still no problem to use to make agricultural tools.

Before, Changsun Wuji asked, this is a good model that can be directly built, and then poured with molten iron, directly molded at one time, and then in the later stage, a small amount of knocking is carried out, and the blade can be used directly.

The military side still needs to continue processing, but in any case, turning iron ore into iron is the most difficult point of technology at present, and the rest is nothing more than the consumption of more manpower and time.

In other words, what restricts Datang now is no longer the output of steel, but the speed of mining ore!

Not to mention, the blast furnace ironmaking project is under the name of Changsun Jun, and Changsun Wuji knows better than anyone what benefits this technology will bring to Changsun Jun.

Looking at the excited crowd, Li Yuanjing didn't have much emotion, and glared fiercely at the equally excited eldest grandson.

To tell the truth, Changsun Jun is still very self-aware, and he doesn't have the courage to die like Li Yuanjing.

But now, he is threatened by Li Yuanjing......

"Your Majesty, in fact, there is still one biggest problem that needs to be solved...... "The eldest grandson Jun stood up and poured a basin of cold water on everyone in every reluctance.

"Oh? It seems that our little heroes have really worked hard! Li Shimin looked at the eldest grandson, and a kind smile appeared on his face, in terms of seniority, the eldest grandson still wants to call Li Shimin's uncle.

"The biggest problem is that the quality of molten iron is not up to par, but we have found the problem and have the confidence to solve this problem, but we don't have the ability to ......" Changsun Jun said with his head down without tears, muttering secretly in his heart, I want to scold you to scold Li Yuanjing, he taught me.

"Say it!" Li Shimin turned his head to look at Li Yuanjing a little helplessly, even if he thought about it with his ass, he could think that Li Yuanjing was behind his back.

"I don't know anything, it was found by the eldest grandson......" Li Yuanjing spread his hands and said that he was innocent.

"Do you really think I don't know anything?"

"Alright! All right! Li Yuanjing really couldn't put it on, mainly because Li Shimin didn't put it on, so he had to continue: "There are many impurities in the molten iron, and now this stage can only be regarded as pig iron, the reason is because the temperature in the furnace is not enough when making iron, and the original intention of designing this blast furnace is to increase the internal temperature."

All kinds of methods were used, but still failed, and finally we found the reason, that is, the use of blackstone is not good, after many tests, found that the quality of the existing blackstone is better, so the next step is to see if the blackstone can be processed, to see if the temperature in the furnace can be higher.

In this case, the practice is wrought iron, here to change a link, to the craftsman, at least a day can be saved, if this method is feasible, then you can follow this idea to continue the study, maybe then you can directly practice the molten steel. ”

"Steel?" Li Shimin was stunned.

The importance of steel is not to be said, as long as it is steel, it can be directly made into weapons, and it is not used to scare people, but it is real.

So far, none of the weapons in the captain's hands have been made of steel, which is too time-consuming and material-intensive.

To build a steel weapon, at least two or three iron weapons can be built, which is unimaginable in today's low production capacity.

"I have always said that as long as we master the core technology, we can be invincible, in fact, many things appear, not because we need to use a way to find out, such as compost, it is completely because a farmer's fertilizer has not been used up, so it is placed on the ground waiting for the next year to be used, and the result is that the place where this fertilizer has been used, the fertility is far beyond other places." Li Yuanjing sighed heavily.

Of course, steelmaking is not so simple, but if you are always reluctant to invest, how can you see the results?

If it weren't for pulling these little rabbit cubs by himself, and then gaining the acquiescence of several of their adults, whether he could do Chengdu in this industry now is still one thing.

Li Shimin has his own considerations, and he is not the emperor, so naturally he doesn't need to look at the face of the family, but Li Shimin can't, he must see it.

Let yourself agree to sell the cloth to the merchants of Luozhou, is there no pressure from the family in this?

"Country! Country! Under the nest, how many eggs are gone? Li Yuanjing then added a fire, he has done so much, theoretically even if Li Shimin is a coward, he should have some ideas at this time, right?

Existence means that it makes sense, but the existence of the family has maintained the stability of the country to a certain extent.

But in more aspects, it has brought many disadvantages to the country.

The simplest example is what Zheng Jingsi said that day, the family and the country are all over the world, and the people of the Zheng family have no right to dispose of them.

This is not Zheng Jingsi's idea alone, but the current idea of the entire family, and even some big families, no matter what happens, the first thing to do is to protect their own family, and only when their own interests are not threatened, will they consider helping the country.

The family can influence the court, but the court can't help them.

The decline of the family in history, thanks to Wu Zetian, the family was basically killed during this period, and after Wu Zetian died, the family was powerless to make any waves.

However, the influence of the family still existed during this period, and it was not until the end of the Tang Dynasty and the beginning of the Song Dynasty that the family completely faded out of the historical stage.

Of course, Li Shimin knows the shortcomings of the family, he also wants to reform, and even he has tried to weaken the power of the family, but those methods are too docile compared to Li Yuanjing's methods.

"I will give you twenty places, deduct them from the establishment of your palace, you can figure out your own way, don't mention the matter of the imperial examination for the time being!" Li Shimin sighed deeply, he was really annoyed by Li Yuanjing, but the attitude of the family could not help but take care of it, so he could only choose such a compromise method.

made a concession, Li Shimin was not to be outdone, but immediately asked: "How long will it take to solve the problem of Heishi?" ”

"A month or two......"