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In the golden autumn of October 1341, the grain in the territory was harvested again, and Cheng Pan still sent people to take the initiative to hand over this year's autumn expedition. Both the local governments in Jiangbei and Jiangnan have completely turned a blind eye to Cheng Pan's armed forces. Of course, Cheng Pan will not suffer a loss, he handed over the food on the surface, won the image of a good baby, secretly, Cheng Pan went out on a business trip every month, and doubled the food sent out. The transport volume of 225 cubic meters also required several train wagons in later generations.

In line with the principle of muffling and making a fortune, Cheng Pan began to hibernate up, waiting for the cultivation of primary and secondary science talents in the territory to successfully enter the industrial chain. Cheng Pan spent a lot of energy on this production system that seemed extremely poor in later generations, but with the step-by-step development of the industrial system, all aspects of continuous improvement, the exhibition of science and technology tree touched the knowledge system more and more detailed and extensive. Cheng Pan is an ordinary person after all, although he has passed the cruel college entrance examination in later generations. But Cheng Pan's depth of knowledge is not broad enough, and Cheng Pan has not worked in chemical plants, steel plants, or machinery factories. There will be a time when an individual's mental power is exhausted. Cheng Pan is no exception, although now Cheng Pan is energetic and his thinking is fast because he has cultivated internal strength. But one person can't take on the whole

The technological progress of the Industrial Revolution. The rapid advancement of science and technology in Cheng Pan's territory gradually stagnated. However, with the addition of a group of junior science and engineering talents, they have taken on breakthroughs in various fields, such as the establishment of steelmaking reverberatory furnaces. Cheng Pan only mentioned this concept, and Li He of the industrial group took several newly graduated junior high school students to complete the construction of the physical object after three months of hard work, which further improved the quality of steelmaking. Cheng Pan raised the treatment of several researchers on the spot, and put forward the concept of patent fees, each factory that adopts this steelmaking technology, every ton of steel smelted with this technology has to pay a sum of money as a patent fee to several researchers, which has lasted for ten years. Why does it only last for ten years, patent fees are a reasonable compensation to encourage researchers to create new technologies, but they are not a tool for researchers to make money. If a researcher can rely on a patent to collect money for a lifetime and pass it on to the next generation, what is the difference between that and a landlord who sits at home and collects rent.

Sun Gang was one of the first batch of disciples to pass the guò elementary school exam, and he studied chemistry intensively.

Cheng Pan is now talking to Sun Gang's research team in the newly built chemistry room. Speaking of this chemical room, it was built by Cheng Pan with gritted teeth. It's not that this real room needs to be luxurious, but the chemicals in it waste Cheng Pan's various brains, among which the manufacture of hydrogen is generated by the guò water gas method, just a reaction furnace and ceramic conduit require a special porcelain master to work for a few days, everyone in the real room has a set of full-body armor, to prevent all kinds of explosions in the real room, and as a scarce gunpowder raw material - saltpeter, the consumption level of this real room is equal to a hundred-person musket team. And this real room also brought gains to Cheng Pan.

Cheng Pan now listens to their latest research.

Here's the thing. Last month, a furnace of molten iron produced by the steel group was solidified and found to be of very good quality, and the knives produced can cut other steels. The steel team was ecstatic and began to sum up the experience, but no matter how they adjusted the ratio of coal and iron and the time of baking, this fine steel only appeared intermittently and irregularly, and just when everyone was at a loss, there was finally a careful employee who produced the iron ore of fine steel that was not locally produced. It came from the land of Jingxiang upstream, which is now Hubei, and was transported downstream. The steel team remembered the elemental theory mentioned by Cheng Pan, and handed over the iron ore storage to the chemical chamber, which used a large amount of sulfuric acid and nitric acid to replace and reduce the theorem to try to analyze the elements in it. In the end, caustic soda was used to turn it into a weak acid root, and hydrogen was used to reduce it, and the elemental matter was separated. Its identity was determined by comparing it to the molar mass and referring to the periodic table.

Sun Gang was wearing an armor uniform and was carefully reporting: "Sir, the metal element in this is chromium, the outermost electron is three, that is, positive trivalent, the molar mass is 52 grams, the density is 7.2o grams / cubic centimeter, it will greatly improve the quality of steel by smelting with steel, we have calculated that this alloy steel can only be cut with steel stone." ”

After hearing this, Cheng Pan said: "Is it possible to make a large number of them?"

Sun Gang replied: "This month, the foreign trade team explored the origin of this iron ore and purchased a large amount of raw ore, but this ore is associated with a large number of other minerals, which can only be produced in small quantities in the real room, and cannot be produced on an industrial scale. ”

Cheng Pan went on to ask if the best alloy steel formula had been tested.

Sun Gang took out a curve table and said, "This is a curve table for steel hardness and ductility that gradually increases the chromium content."

Cheng Pan carefully observed and said how much chromium is there now.

Sun Gang said: "Now 16.351 kilograms have been produced. ”

Cheng Pan said: "Give me six kilograms, and the rest will be discussed with the industrial team to make cutting knives." Recruit people from the industrial group to expand the reactor and produce it in small quantities using the real yàn chamber method to make high-quality tools."

Sun Gang: "Yes".

After discussing the production of chromium steel, Cheng Pan said: "How is the research of manganese steel?"

Sun Gang replied: "Now we are doing it step by step, but we are now, the higher the content of manganese in the steel, the more brittle the steel seems to be." ”

Cheng Pan said: "Continue to implement step by step, and the properties of manganese steel will become special to a certain proportion."

Sun Gang's eyes lit up when he heard it and said, "Sir, we will pay attention to it carefully."

Cheng Pan walked out of the real yàn room with six kilograms of chromium. The reason why Cheng Pan wanted these chromiums was only to cast a weapon. Since the last time he was suppressed by the sharpness of the Heavenly Sword, Cheng Pan was very unhappy. Although Cheng Pan defeated Extinction with ingenious swordsmanship, Cheng Pan's favorite way to play in his heart is to fight hard, and put his opponent right in a dignified way, that kind of tricky way Cheng Pan doesn't mind, but if he can be open, Cheng Pan must not be willing to take tricks. Cheng Pan had no way to deal with the mysterious power of the sharp attribute in the Heavenly Sword, but the next time he had the opportunity to encounter a divine soldier at the level of the Heavenly Sword Dragon Slayer, Cheng Pan wanted to use the hardness of chrome steel to open a few gaps for the divine soldier.

It's just that only six kilograms of chromium can't make a pure chrome steel sword. If the chromium content is reduced, it is ordinary stainless steel, and it is unrealistic for Cheng Pan to want a factory-cut level weapon. Finally, abide by the principle that the good steel of the ancients is used on the blade, only use high-chromium steel on the blade, and the sword body is made of alloy steel containing 2o% chromium, and the sword body alone uses 5 kg of chromium.

When the molten steel was combined with the blade in the mold and gradually solidified, Cheng Pan suddenly put his hand on the red hilt, and with a stabbing sound, Cheng Pan's hand came out with a scorching smell, and the sun really repaired the wound. And Cheng Pan didn't care about the scars on his hands that weren't good, and his face was happy. Cheng Pan felt that when he just touched his hand to the hilt of the sword, a trace of the power of the sun remained on the sword, Cheng Pan felt that he had shown the method of making divine weapons, Cheng Pan was a practical person, and he endured severe pain and began to do practical yàn.

After a period of time, Cheng Pan learned about the general situation, the power of the sun does not stay on the body of the sword, but dissipates with the cooling of the sword body, but the input of the power of the sun is not without effect, after the input of the maximum amount of sun power, even if the sword body is cooled, it can easily enter the sword body to reach the maximum amount of sun power, and the maximum amount of input of the power of the sun is in the sword body, the hotter the better, that is to say, the divine weapon currently made by Cheng Pan needs to be charged, Unlike the Heavenly Sword with a mysterious power with a sharp attribute that will not be diminished, and Cheng Pan wants to expand the "battery capacity" of this divine soldier must bear the punishment of cannon branding, and the interval between cannon branding cannot be long, otherwise the power of the sun in the sword body will have to be output to the apex after it has dissipated.

This is a protracted battle, Cheng Pan's character is content with pleasure, this kind of drudgery, Cheng Pan will generally consider it solemnly. For the sake of a divine soldier, Cheng Pan decided to do it, although he was in pain from being scalded every day, but he felt that the capacity of the divine soldier was constantly expanding, Cheng Pan gritted his teeth and persevered. People can constantly see their own results when doing things, which provides the motivation to keep things done. But the process was too difficult, Cheng Pan wanted to give up several times, but, thinking about the cold mangs of Yitian, and then thinking about the rewards of what he was doing, and the suffering he had suffered before, Cheng Pan decided to grit his teeth and charge the heavy sword in front of him to the limit. Cheng Pan decided to compete with it.

For three months, Cheng Pan has been in the sword casting room, and Cheng Pan has handed over all the affairs of the entire territory to the administrative group, he only makes decisions in the general direction, Cheng Pan has been eating non-stop for three months, meditating under the sun, and then he is exporting the power of the sun, and taking out bits and pieces of time to read official documents every day. The power of the sun repaired the severely burned hand again and again, and Cheng Pan put the restored hand on the sword again and again. Finally, the hard work paid off, and three months later, Cheng Pan suddenly appeared that the capacity of the sword body reached a limit, and Cheng Pan finally increased his efforts to input the power of the sun. As if the meridians had been opened in the sword body, the power of the sun formed a cycle in the sword body. The power of the rolling sun is moving in the sword body, and the dissipation of the power of the sun is decreasing very slowly compared to the previous degree, only one-twentieth of the uncircular, and the whole sword seems to come alive with a pale golden glow under the injection of the power of the sun, yes, the sword body is indeed light. Cheng Pan tried the capacity of the sun power of the sword body, which had reached the limit, ten times the capacity of the sun power in Cheng Pan's body. The hard work pays off, and the three months have been tense in order to complete this work. In these days, both he and the people in his territory had advised him not to suffer like this, or that it would be better for him to finish half of it, that there was no need to do it so perfectly. And today Cheng Pan succeeded, Cheng Pan felt that his soul was sublimated once, and his willpower was greatly improved, Cheng Pan also had this experience before, that is, he worked hard to repeat the college entrance examination for a year. You can't experience the joy of success without experiencing pain. Cheng Pan calculated the time, and it was exactly ninety-nine eighty-one days from Cheng Pan's first input of the power of the sun to his success. Cheng Pan quenched and polished the heavy sword, and the whole sword body was as bright as a mirror, worthy of the reputation of stainless steel. Cheng Pan picked up the sword and observed, this sword weighs 81.3 kilograms, the hilt is 1.9 meters long, the width of the sword body (not counting the gauntlet) is 12 centimeters, and the thickness of the sword ridge is 3 centimeters. The outside of the sword body is chrome steel with a chromium content of 2o%, and the inside is made of low carbon steel molten steel, and the blade is high chromium steel. The entire sword, along with the hilt, is a single piece of metal. The appearance is stainless steel (chromium content 13% to 25% chromium steel) looks very gorgeous, as for such a powerful piece of iron, even if it smashes people, it is a murder weapon, not to mention that it also has a blade. Only a person like Cheng Pan, who can carry a ton of weight, can sway.

Cheng Pan held the sword and walked out of the sword-casting room with a high temperament, the early winter sun was warm, Cheng Pan was stunned for a moment, and then ecstatic. If Cheng Pan's sword is filled with the power of the sun, it will need to be dissipated in the sword casting room for ten days before the power of the sun will be exhausted. But Cheng Pan just appeared that the sword was under the sun, and the total amount of the sun's power was not decreasing but growing when it circulated in the sword body, Cheng Pan observed with his senses, the circulation of the sun's power kept replenishing from the sword body illuminated by the sun's rays, and the degree of this supplement was only one-tenth of Cheng Pan's cultivation in the sun, but it was still objective, that is to say, in two hours of irradiation under the sun, the sword was fully charged. Cheng Pan was overjoyed, and now that he saw it in this way, this sword was completely comparable to the Heavenly Sword Dragon Slayer.

Cheng Pan looked at the sword, recalled his heart of forging a sword these days, and involuntarily a sentence appeared in his mind: "Tianxingjian, a gentleman strives for self-improvement." Cheng Pan said: "The process of refining the sword is also refining the heart, so let's call you the heart refining sword." Cheng Pan put the Heart Refining Sword into the sea space. After leaving the sword casting room, there was a lot of work backlogged in three months, and Cheng Pan was going to be busy for a while.