This king wants you to be loyal to this king, if you betray, you will be despised by the saints, and you will be ashamed of being a craftsman, can you?

Zhao Jiujiang was stunned for a while, he didn't know how to answer, if he didn't agree, wouldn't it be clear that he would betray him in the future, and he might not survive today, but he was a little unwilling to agree in a daze, and Li Zhi said again at this time.

This king should be you, and if you are loyal to this king, it is not impossible for the new steelmaking law to be granted to you.

Under such a huge temptation, how can this not be agreed, for the craftsman, there is nothing that can impress people with new techniques.

Well, this king will come back in ten days, hoping to see a workshop that has undergone earth-shaking changes, and if there are any problems encountered in the construction of the workshop, please contact Commander Zhu.

drew a round cake for Zhao Jiujiang, Li Zhi and Zhu Kai went home, during which he also asked about a porcelain kiln in the palace, but the scale was not large, and only regular tribute was paid to complete the index, but this was enough.

When he returned to the palace of King Xin, Li Zhi locked himself in the study, scribbled something on the paper with a brush, and did not call Zhu Kaidao until the afternoon.

"The porcelain kiln must be exactly fired for the king of the things drawn on this drawing," and handed another piece of paper.

He commanded: The material written on this paper will be two days at most! This king is about to see that all the necessary expenses will be spent on Steward Zhang.

"Alright, stand down!" Li Zhi waved his hand.

"Yes!" Zhu Kai carefully put away the two pieces of paper and hurriedly retreated.

After ordering everything, Li Zhi leaned back in the chair and pressed his brow hard with both hands, and then his brow soothed for a while, thinking about something.

In fact, in the past two days, Li Zhi not only thought about steelmaking, but also intruded on him, that is, the problem of fiefdom, only by solving this problem can the fief be rich in the real sense.

In ancient times, no matter what dynasty there was, there would be such a situation, there was not enough land! Why is there not enough land for so much? Because most of the land is controlled by landlords, gentry, and wealthy merchants, only a very small number of people have land at home, but more will be seized by Haoqiang, resulting in more land and not enough people.

Several dynasties wanted to annex the land, but as soon as any signs appeared, they would be prevented from doing so, and finally they had to give up, and even worse, the dynasty fell apart.

Now, not only Li Zhi's fiefdom, but also the entire Great Xia Dynasty, so Li Zhi intends to solve this old and difficult problem, but now is not the time, the premise for solving this problem is to have a strong military force.

Therefore, Li Zhi planned to start with steelmaking, which would not only create a new economic source for the fiefdom, but also improve the quality of the army's weapons, so as to defeat the enemy in weapon technology.

After thinking about it all night, Li Zhi never had a way, and the next day he locked himself in the study for five days, and even the eating and pulling were carried out in the study, and the five-day retreat gave Li Zhi a clear direction for his future planning.

The next day, Li Zhi got up early and immediately rushed to the porcelain kiln with Zhu Kai.

The day before yesterday, Li Zhi handed over to Zhu Kai the drawings drawn on the drawings for making the crucible and the notes that need to be paid attention to when firing. The porcelain-making process of this era has reached its peak, so Li Zhi is not worried about not being able to make it.

The firing of the crucible is different from ordinary porcelain, and Li Zhi chose a graphite crucible, which has high thermal conductivity and high temperature resistance, graphite was not widely used in this era, but fortunately, there is a lot of graphite ore in Suxi Province, so Li Zhi added graphite to the porcelain-making formula, when the craftsmen made it, they were confused, and thought they were mistaken, but fortunately, with superb skills, the crucible was fired very perfectly, the wall was smooth and flat, without any flaws, Li Zhi called the chief craftsman and ordered him to write down the specific time and temperature of the crucible firing, As well as the details.

In fact, there are many annotations on the drawings written by Li Zhi, but they are only vague memories of the previous life, and the craftsmen need to continue to explore, so it takes five days, otherwise if there is a detailed process and attention to details, the craftsmen do not have to spend a lot of time groping, and the finished product can be produced in two days at most.

Ordered someone to carefully transport the crucible to the backyard of King Xin's mansion.

Everything had already been arranged in the backyard of the palace, a simple forging table on the side, and a dug pit, on which were shelves made of wood, and more than a dozen experienced craftsmen who had been summoned back by Zhao Jiujiang.

The craftsman was instructed to spread the bottom of the pit with a burning charcoal fire, and then after spreading it to a certain height, the crucible was lifted to the base of the crucible by a shelf set by Li Zhi using the principle of a lever.

After a simple preheating, Li Zhi instructed the craftsmen to carefully put the iron that had been carburized at high temperature in advance into the crucible, and then add slag remover and other inputs.

Cover the crucible furnace lid, and all that remains is to continuously add fire carbon, so that the outside of the crucible is continuously heated, and the iron in the furnace absorbs the carbon in the graphite crucible and melts into high-carbon molten steel.

After waiting for about two hours, the iron in the furnace will basically melt into molten iron. But it's not enough, Li Zhi wants to see it completely liquid.

After another hour, the molten iron in the furnace is completely liquefied, and the iron blocks are continuously reduced in sulfur, phosphorus, etc. under the action of slag beater, and then these impurities are separated and enter the slag, because the slag has a light specific gravity and floats on the molten steel, so it is easier to remove.

Seeing that the molten steel had been completed, Li Zhi instructed the craftsmen who had been called to the backyard of the palace in advance to start working, each dividing the labor, opening the crucible cover, then removing the slag, casting, and cleaning, and then some craftsmen were responsible for cooling, and some craftsmen put the cleaned crucible on the base again, added new coals, and fired it again, with a clear division of labor.

The molten steel is poured into the mold, and the molten steel is shaped after half an hour of more than 1,000 degrees, and then the craftsman in charge of forging uses large pliers to clamp the red steel ingots and put them aside for forging.

Forging by experienced craftsmen, after several processes, it didn't take long for several long swords, steel knives, and spears to be placed in front of Li Zhi.

Now that the weapon has been built, it's time to try the knife, and the craftsman holds a steel knife and chops in different directions on a log prepared in advance, and the knife goes into the wood for three points, while looking at the blade, the blade is intact.

Such a result shocked all the craftsmen present, and even Zhu Kai was stunned at this time: "Your Highness, if such weapons are equipped with a large number of troops, the combat effectiveness of the army will be invincible. ”

Li Zhi didn't expect that the first experiment would reach such a perfect level, and he thought that he would have to fail a few times and keep improving, for which Li Zhiquan attributed his luck.

After the success of the crucible experiment, Li Zhi sent people to the porcelain kiln and ordered the craftsmen to strictly produce 100 furnaces according to the successful crucible production process data for large-scale production.

In addition, Li Zhi specially instructed the craftsmen to improve the steelmaking process, hoping to reach a higher level, and sent a special person to supervise the improvement of the craftsmen. Among them, the most important slag remover, Li Zhi is responsible for the procurement of materials, proportioning, and experimental records of different people, so as to ensure that the purchaser does not know what the raw materials are used for, the proportioning person does not know what the result is, and the recorder does not know what kind of result is qualified.

After all the data are counted in one place, Li Zhi is responsible for the trial.