Emperor Jing sat down in the Fengtian Palace, smiling and seeing that the courtiers really sprayed saliva all over Li Yuncong's face, and the latter seemed to be stupid, standing in the middle of it like a piece of wood, without saying a word or moving. Emperor Jing felt funny when he looked at it, Zhu Jianji's illness was good these days, which made Emperor Jing's mood much better, and also made him more grateful to Ding Yi, of course, this gratitude, he had instructed the eunuch Xing'an, sent people to Nanjing, and taught Ding Yi to build two more fleets.

As for the court, he still subconsciously didn't want Ding Yi to appear in the center. Anyway, didn't Ding Yi ask himself to set up the Metropolitan Governor's Mansion of the Four Seas? Do you want to go to sea? Then he'll do it. At this time, looking at the messengers of the courtiers spraying Ding Yi, Emperor Jing's mood became better, doesn't this mean that Ding Yi is not allowed to be allowed by the courtiers?

"What do you think, sir?" Emperor Jing called him Mr. in Fengtian Palace, no need to ask, there is only one, that is, Yu Qian, the secretary of the military department, and Yu Da Sima. He didn't speak, and the officials below the Ministry of War didn't jump out and join in the ranks of spraying Li Yuncong, so Emperor Jing was going to force Yu Qian to make a statement.

Yu Qian listened, smiled and replied: "The old minister thinks that when he sent the factory guards to the outside of the customs and reprimanded him, he cut Ding Rujin and took the python robe, arrested him and returned to Beijing, and put him in prison to be punished. As for the outside of the gate, how heroic are the princes here? Teach them to wear seals, or overseers, and then conquer the grassland. The Ming Dynasty is rich all over the world, a little military spending, although the treasury is tight, but the princes have great wisdom, and they have a way to prepare grain and grass and recruit Ding Zhuang. ”

All of a sudden, almost the entire Fengtian Temple fell silent. So quiet that you can hear the sound of a needle hitting the ground.

Everyone could hear that Yu Qian was talking back. Yu Da Sima is angry and laughed! Emperor Jing originally wanted to see the joke, but he was choked by Yu Qian, and he didn't know how to take it for a while, and he felt like he couldn't get off the stage. Instead, Chen Xun stood up and made a step for Emperor Jing: "The minister thinks it must not be!" If Ding Zongxian is questioned, there will be people in the world who dare to serve the country after that? ”

The courtiers of Ding's lineage all jumped out to second, Zheng Wenkui, who served as the imperial history of the thirteen palm seals. even said bluntly: "If this crime is Ding Zongxian, there is a precedent in history, and it will be called unwarranted!" It is also called the dawn of the day! So he caused others to spray him. said that he compared Emperor Jing to Song Gaozong Yunyun.

So Li Yuncong had nothing to do, and Zheng Wenkui was dragged down by the Han general because of his loss of honor in front of the king, and he stripped his pants and his cane.

This guy is extremely tough. Or at the request of Ding Yi. Getting up and running every day makes his body very good, or the Han general is jealous of Ding Yi's murderous name, and he doesn't dare to beat his Ding someone's minions to death, in short, after receiving the court staff and returning to Fengtian Palace, although his face is a little pale, Zheng Wenkui still sprays Emperor Jing: "If you don't welcome the general constitution in the suburbs of Beijing." It's for the faint king! ”

Emperor Jing was so angry that he trembled, for a while. Those courtiers who impeached Ding Yi at his behest, because Yu Qian said that they wanted them to go outside the customs, they didn't dare to speak out, but as a result, Yushi jumped out to support Zheng Wenkui: "Today, the saint wants to force the ministers to be equivalent to Taishi Gong, and create Huaiyin's scheme?" "It means that Emperor Jing wants to erase Ding Yi's exploits, unless he wants to frame Ding Yi and Han Xin, the Marquis of Huaiyin, for rebellion, otherwise, it is absolutely impossible.

And Han Xin, the Marquis of Huaiyin, in the section of "The Biography of the Marquis of Huaiyin", where Han Xin and Chen Xin conspired to rebel, there was no third party present, and there was no record of Chen Xin or Han Xin saying that a third party knew about it, how did Taishi Gong know? Tai Shi Gong, who recorded this paragraph in the history books, was punished by the palace, and many people in later generations suspected that this paragraph was written by Tai Shi Gong as a last resort because he was worried about cutting off the small head and then cutting the big head.

Because the "Historical Records" did not give Chen Xin a biography, and neither the "Biography of the Marquis of Huaiyin" nor the "Gaozu Benji" wrote Chen Li's words about Han Xin, most later generations believed that Taishi Gong deliberately left a flaw. This imperial historian is determined to vote for Ding's subordinates, or he also wants to deceive the court staff, so he directly sprays Emperor Jing like this.

"If Jin was given an iron coupon pill book to rest with the country, does I have doubts about him?" Emperor Jing squeezed such a sentence, but he couldn't attack, so he had to say, "I am quite uncomfortable, this matter is handed over to the ministry for discussion, and I will retreat from the dynasty!" Then he hurriedly brushed his sleeves away.

In this chaotic court, before a result has been discussed, Ding Yi is outside the gate, but he has ushered in a messenger. If they want to let Ding Yi enter the customs, the guards will not dare, but there are messengers who want to go out of the customs to see Ding Yi, and they dare not let them go, and of course they do not dare to open and close the door, and they can only use hanging baskets to get the thirty or so people out of the city one by one.

Along with the messenger came, as well as Craftsman Li's apprentice Yu Ah Dan, or rather, the messenger and the accompanying infantry platoon, their real mission was to protect the craftsman, or if they couldn't protect him, kill Yu Ah Dan. Seeing Ding Yi, Yu Adan's kneeling down respectfully and kowtowing, and said excitedly: "Sir! Mr! We've got it! ”

The letter from the director of the Guangxi Factory, who is also Du Mu of Cangwu Zhi County, was submitted by a messenger.

The main thing to talk about is this matter in Yu Adan's mouth: they have made a gray iron.

When the cooling speed of molten pig iron is fast, whitening is a difficult problem, and Li Jiangtou and they have repeatedly experimented and researched, and found that after the realization of Ding Yi's metal hot air pipe technology and the construction of regenerative chamber technology, and the realization of hot blast, the furnace temperature of the blast furnace has been further improved, so that after the molten pig iron is cooled, the fracture is still gray.

And it is noted in the letter that this graying does not change with the cooling rate. It is necessary to mention what is called white iron, that is, during the Opium War in history, most of the cannons cast were white iron, and it was difficult to make gray iron in China under the technological conditions at that time. Cannons made of white iron have increased brittleness and decreased performance due to the relationship between iron and iron. In order to increase the tensile strength, it can only be solved by increasing the wall thickness. That is, with the same charge and range, the weight of the gun body is much heavier than that of a gun with gray iron, which is not only higher in price, but also many times less portable.

Don't underestimate a gray iron, it's a milestone in the casting process!

Yu A-Dan took out a letter from the pocket of the meat, and put his hands over his head, Li Yuncong was going to check, Ding Yi shook his head, and motioned to take it directly, if even this was simply given a new life by Ding Yi, so that he could not be trusted by Ding Yi from the lowest craftsman in Daming to the respected craftsman in Wuzhou now, Ding Yi was too a failure.

This letter was written by Li Jiangtou, and the handwriting was very clumsy, and it could be seen that he did not want to fake others. Ding Yi nodded secretly, but Craftsman Li knew the severity, and the letter was mainly about the problem of casting cannons: "...... The villain thinks that the cannon should be cast with gray iron......"

The Wuzhou factory is now beginning to produce even high-carbon steel, but whether it is low-carbon steel or high-carbon steel, the output is not high, the problem is to make guns, use hammer forging to make rifling, even if it is not realized, there is still a possibility of realization. But for equipment such as artillery, the means of processing are very poor, how to forge rifling and the like, the era span is too large, not to mention that the output has not kept up, even if the output has kept up, it is difficult to batch process and produce.

Therefore, Du Mu, who served as the director of the factory, also attached his opinion to the letter: it is better to use gray iron to cast cannons, and abandon the multi-layer gun barrel technology on the previous two destroyers Guangdong and Guangxi, which would be too costly. And Du Mu also proposed that the iron mold casting cannon should be used, because the iron mold casting cannon does not have to wait for a few months like the clay mold, and the original problem of the iron mold casting cannon is that it will be white, and now the quality material has been solved; Then use the Rodman casting method provided by Ding Yi, that is, replace the mold of the inner mold of the barrel with a hollow one, and add a cooling water pipe in the middle - the principle of CPU water cooling and heat dissipation in later generations is roughly the same.

In this way, the current West Sea Fleet can be quickly equipped with artillery.

But Li Jiangtou opposed this approach: "...... When the solid gray iron column is cast first, then drilled, and then the loose layer on the outer surface is turned, and then the process of reaming and boring is used to ...... "the factors that he proposed that the Du Mu plan is not feasible," ...... The inner wall is water-cooled, which can make the internal and external cooling balanced...... Even the inner layer is cooled first and the outer layer is cooled later, which is similar to the excellent ...... of multi-layer self-tightening" This is to say that Ding Yi proposed the feasibility of internal chamber water cooling, but then he proposed," ...... The flow rate and temperature changes of the coolant slurry are difficult to control...... "and even raises even bigger problems," ...... If a poor person lives a lifetime, after 30 years, he may be able to use ......"

Ding Yi looked absolutely down, thirty years? Where can he afford to wait thirty years? He remembered that as soon as this inner wall cooling method came out, it was applied on a large scale in the civil war between the north and the south! How did it take 30 years to test Li Jiangtou's place?

Li Jiangtou said that the flow rate and temperature of the inner wall of water cooling should be tested for a reasonable number of jù, and it will take 30 years. Otherwise, it is extremely risky to start now. After Ding Yi sighed and shook his head, he calmed down and thought about it, which is also right, you must know that Craftsman Li is a technical maniac, and when he was in Rongchang, he dared to go on credit and put on a batch of diamond drill bits to do the test!

It's not nice to say, with his worth at the time, he sold his whole child, and it was not enough to pay off the debt, and this guy dared to do it. Now that he said that it would take thirty years, Ding Yi really didn't dare to doubt it - even this technical maniac said that it was not feasible. It's reasonable to think about it, artillery is such a large piece of equipment, it is not so easy to do, how can a concept be put forward and can be applied on a large scale?

In fact, Ding Yi remembered wrongly, it took ten years for Rodman to put forward the theory and prove the scientific and reasonable technical parameters in practice, and the era of the Wuzhou factory itself, Li Jiangtou proposed thirty years, which is really not too exaggerated.

"According to the method said by Li Jiangtou, the ash mouth pillar, drilling holes and so on. More real yàn, I build yì at least double cannon barrel" Ding Yi's opinion was also replied simply, "A few months, I can afford to wait." Of course, Ding Yi's choice is not a few months, but a choice between modern technological processes and local methods, and the reason why he trusts Li Jiangtou more is that the process proposed by the latter is closer to the modern mechanical process, "The annealed white iron mentioned earlier to develop the process of malleable cast iron should also be stepped up." (To be continued......)