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"That is, your Dongshan Marquis is powerful, and in order to build a house, you have to send people to explore mines, but if some mines are really surveyed, I'm afraid that Brother Jing will not be able to deal with it in the court, right?" A hint of worry flashed across Jin Yang's face. Pen & Fun & Pavilion www.biquge.info

Xuan Shijing naturally knows that the mine belongs to Datang, and even if the mine is explored, it must be honestly handed over to the state, but what Xuan Shijing asked people to find is a coal mine, not a metal mine such as copper ore, iron ore, and gold ore, so the coal mine is not within the scope of the country.

Moreover, it is useless for the imperial court to ask for coal mines, is it possible to let the ministers of civil and military affairs dig coal? And this coal, even if the court knows about it, Xuan Shijing doesn't say it, this Manchu Dynasty civil and military, who will know the great use of this coal?

Therefore, at this point, Xuan Shijing is not worried about the problems of the imperial court at all, if someone really wants to sabotage and interfere, although it is, this kind of thankless thing, I really don't know who will come to risk offending people to find fault, without Xuan Shijing, the coal buried in the ground was dug out and piled there, just a pile of useless black stones.

"There's nothing wrong with the court, it's just some stones used to burn the fire, it's hard to do it, and there will be people who want to occupy it and make a fire at home to cook." Xuan Shijing said with a smile.

However, as soon as this coal comes out, it naturally can't only be supplied to Xuan Shijing to burn cement, and now His Majesty Li Er is sharpening his knife Huo Huo wants to do something to Goguryeo, and Xuan Shijing also plans to discuss the matter of this coal mine with His Majesty Li Er, if this coal mine can be used on wrought iron, the quality of weapons in the hands of Tang soldiers can be further improved.

The second is to improve the technology of the Tang knife, although the Tang knife is very strong, but it cannot be equipped to the army on a large scale, Xuan Shijing thought of Dongying's katana, which is also on the street to see the Tang envoy of the Wa Kingdom with a knife, this is what I remembered.

The biggest feature of Dongying's katana is that it improves the Tang sword, adds a certain arc, and is easy to chop, and in the forging process, it also adopts the technology of Baotou steel.

As the saying goes, good steel is used on the blade, the material of steel is harder than iron, but the weapon can not be 100% made of steel, and the rigidity of the weapon must have moderate toughness, unless it is alloy steel or high-carbon steel, but these, Datang does not have, so the most common weapon in the army is iron, if the technology of clad steel is used to improve the Tang knife, the Tang knife created will be improved in both toughness and hardness, especially the hardness of the knife edge, the hardness will be raised, and the life of the weapon on the battlefield will be greatly improved, so that there will be curling blades and gaps in a few slashes, and it will also provide a little more protection for the lives of soldiers.

"By the way, son, did you see the blades worn by those Japanese people on the waists of those Japanese people on Chang'an City Street before?" Xuan Shijing looked at Jin Yang.

Jin Yang nodded and replied: "I see, those Japanese people who wear blades are all guards brought by Tang envoys, if they are ordinary people, they can't go to the street with blades without the government's order." ”

Sure enough, it was an envoy to the Tang Dynasty......

"What do you think of the blades of those Japanese people?" Xuan Shijing asked again.

"It's very ordinary, if it is against my Datang's long knife, the strength is greater, and it is inevitable that you will end up broken in two." Jin Yang said: "Why is Brother Jing interested in the blades of the Japanese people? ”

"I see that the blade of the Japanese people seems to have been improved on the horizontal sword of our Datang, so I feel a little curious." Xuan Shijing said: "The knife of the Japanese people has more arc than our Tang knife of the Tang Dynasty, and it is more convenient in chopping and chopping, originally I thought that their knife would be stronger than our Datang knife, but I didn't expect that this improvement was wasted." ”

Even if there is a radian, there is no quality to rely on, and the Tang knife will still end up with a loss, because the current Wa Kingdom, the technology of forging blades has not yet matured.

The current Japan, historically speaking, belongs to the Nara period, this period, with the Tang envoys to the Central Plains, the Tang Dynasty's "Tang Broadsword" was transmitted to Japan, "Tang Broadsword" adopted the most advanced forging process at this time, through forging cold and hot treatment, uniform steel tissue fibers, remove impurities, so, the forging of the Wa Kingdom have imitated, produced countless "Tang like Dadao", soon, the forgers of the Wa Kingdom mastered this advanced technology, and then later, Some well-known knife blacksmiths have even begun to adjust the carbon content of the steel to enhance the toughness and hardness of the knife.

If you say anything else, Xuan Shijing may not know, but when it comes to the Japanese ronin in the coastal areas during the Ming Dynasty, most people must know that the Ming army suffered a big loss in terms of weapons alone, because by the time of the Ming Dynasty, the forging technology of the Japanese country was already very mature.

The Ming Dynasty was the heyday of the samurai culture of the Wa Kingdom, and there was a great breakthrough in the forging process of the katana, when the forging masters of the Wa Kingdom invented a technology called carbon folding steel quenching, which is to continuously forge the steel, and then fold and laminate and then forge, and then fold and laminate the process, during which the quenching and cold treatment is constantly carried out to adjust the carbon content, so that after the katana is created, you can see obvious beautiful water ripples on the knife surface, and the carbon folding steel is mixed with a large number of leather steel and core iron. The hardened leather steel ensures the hardness of the knife, and the non-quenched core iron ensures the flexibility of the knife.

"What's so good about the blades of the Japanese people, if Brother Jing likes it, the son also has a magic weapon, and he will give it to Brother Jing." Jin Yang thought that Xuan Shijing was a weapon that lacked hand, so he would be interested in the blades of those Japanese people.

Xuan Shijing smiled and shook his head: "I don't lack blades, I'm just thinking if I can improve the long knives in the hands of our Tang soldiers." ”

"Good and decent, why did Brother Jing think of improving his weapons? But what's wrong with the weapons in the hands of the soldiers in the army now? Jin Yang asked.

"There's nothing wrong with it, it's just that with the coal mine, you can take those weapons to the next level." Xuan Shijing said, but naturally it has to cooperate with the technology that Xuan Shijing came up with.

The so-called technology is naturally the kind of carbon folding steel technology, in short, it is the steel technology.

Although it takes a lot of manpower and financial resources to build this kind of blade, it is not necessary for every soldier to achieve that kind of accuracy, but it is only necessary to improve the original technology slightly.