After lunch at Qita's house, Chen Dexing returned to Nanfen Iron House. He did not go to the blast furnace to wait for the iron to be discharged. Although he used coke iron and used a water truck to drive the sealing blower, Chen Dexing did not know the concept of "preheating pool". After all, he was not a professional metallurgy. He could know about Nanfen Iron, Fushun coal, coal coking, coking iron, reflector and crucible steel, which would have been a bit out of the ordinary. If it weren't for the city where he grew up in his previous life, it was a steel industry base, and his parents and brother worked in steel factories, and they had heard and witnessed it since childhood. In addition, he later read a lot of historical time-travel novels on the Internet, it would be impossible to know so much.

However, no matter how much you know, it cannot be compared with professionals. His major is sailing, so he can make an expedition fleet composed of a sailboat to cross the Pacific Ocean to North America - it is not difficult for him. It is nothing more than finding the right latitude of the warm current in the North Pacific, and then looking at the character of the person! He drowned when he encounters a big storm, and discovers a new world without encountering it... In fact, Columbus had a good character back then. If he encounters hurricanes that are quite common in the Atlantic and Caribbean Seas, it is a dead end!

It is not necessarily safe to cross the Yangtze River these days, let alone the Pacific Ocean? So Chen Dexing would not take risks himself. He doesn't want to encounter a huge wave and then beat him to death. It's very interesting to live in this life.

After a meal of delicious mountain delicacies, King Chen Daming went to Nanfen Tiefang's steelmaking, which was on the small high ground where the two crucible furnaces were located.

In addition to two crucible furnaces, there are also two forging workshops on the small highland, which are mechanized forging workshops that use water trucks to provide power to drive hydraulic hammers - it is also possible to say that it is an original steel rolling workshop.

When Chen Dexing arrived, Sir Meng Datou was holding a rod scale to measure charcoal powder. Chen Dexing also knew the secret of using lime powder to remove sulfur and phosphorus, but considering that most of China's iron ore are high in sulfur and high in phosphorus, and the only large ore with low sulfur and phosphorus is controlled by himself, this secret has not been disclosed for the time being.

After weighing the charcoal powder, Meng De poured the charcoal powder into a crucible that looked like a wooden barrel. A thin slice of cooked iron was placed in the "washbasin". Add charcoal powder into the cooked iron sheet, and then put it in a crucible furnace to use a high-temperature smelting process. The purpose is to increase the carbon content of cooked iron and make it meet the requirements of steel. In later generations, iron with a carbon content of less than 002% was called cooked iron or pure iron, and the texture was very soft. However, a carbon content of between 002% and 211% was called steel. A carbon content of more than 211% was called pig iron or cast iron.

The process of iron making is summarized as one word - taking off! It is not taking off clothes, but removing silicon, demanganese, deoxidation, decarbonization, dephosphorization, and desulfurization. In short, it is to strip all the impurities in the iron ore to obtain extremely high purity pure iron. The process of steel making is to add something to the pure iron. It can be charcoal powder, lime powder, and something else to achieve the best quality steel.

Of course, theoretically, the two steps of decarbonization and addition can be combined into one, and in one step in the process of "firing iron". However, in practice, except for the excellent luck in dog shit, you can encounter one or two pieces of metals that can be called steel, most of the time you get is very thorough decarbonization. If the material selection is not good, high-phosphorus or high-sulfur or iron is made of coal, then the low-carbon, high-sulfur, and high-phosphorus iron is obtained. The quality is naturally terrible, and it can only be overweight when used to build weapons and armor - increase the thickness in exchange for solidity. Therefore, the armor of Song Jun was very heavy, and the blade was rolled up after a few cuts. Then he did not chop people with a knife but smashed people with a knife!

If it weren't for a strong man like Chen Dexing, it would be a big deal to go to the battlefield with the Song army-style ring-headed sword.

Moreover, even if you hit the dog's shit, you may not necessarily get any good weapons. In any case, Chen Dexing's opinion, the blades of the so-called "Hundred Refining Swords" he got were still a little soft. The sword body was a little brittle but not tough. I wonder if it was because of too many forgings that the outer steel of the sword was decarbonized, and the inner layer became brittle because it contained more carbon...

"King. The amount of charcoal powder in this crucible was determined after repeated trials." Meng Datou saw Chen Dexing bringing people to his side, so he paused his work and introduced it. "The steel made in this way is moderately hard and hard, which is especially suitable for building plate armor. If you want to build a steel-clamp weapon, you need to add more charcoal powder."

After several months of repeated experiments, the craftsmen of Nanfen Iron House have found the basic rules of how much carbon powder is added and how hard the steel is. High-carbon steel and medium-carbon steel can be smelted. The former is used to make steel clamps or steel inlays. It is hard on the outside and soft on the inside, and is both sharp and not easy to break. The latter is a perfect combination of strength and hardness and processing performance, and is most suitable for building plate armor - the price is too high, and it is not a wealthy upper military aristocrat who probably cannot afford it.

Therefore, in the latest Beiming Army Armor and Equipment Configuration Standard (actually a minimum standard. If the standard requires the military general to indicate the level of armor and equipment, the Beiming Military Affairs Department will give the military general two choices: one is to use the bargains provided by the Military Affairs Department; the other is to send money to the Military Affairs Department and add some money to buy it). There is no plate armor, only two bargains, including steel knives and steel gun tips.

Chen Dexing turned around and said to the two brothers of the Deng family: "This is all knowledge! Metallurgy is also endless. The iron smelting technique of Nanfen Iron House is just a first look at the path, and it is still too early to be profound!"

"What the king said is extremely true." Deng Mingan and Deng Mingli hurriedly bowed and said yes.

"Meng Qing, start making steel." Chen Dexing turned around and ordered Meng Datou.

Two wooden barrel-like crucibles were carried by people and sent into a crucible furnace made of refractory bricks. The temperature of the crucible furnace is extremely high because it needs to melt the cooked iron, which requires a high temperature of nearly 1,600 degrees. If it cannot be reached, the cooked iron will not become liquid and it will be difficult to integrate with the charcoal powder. Therefore, the crucible furnace and the crucible themselves use the best refractory bricks, and the furnace wall thickness of the crucible furnace is very thick and will not be burned by the high temperature anyway.

The design of the crucible furnace is relatively simple, which is to blow the bottom, fry the chimney at the top, and coal is piled around the crucible. After more than two hours of ignition, the iron sheet finally turned into liquid... It may not be, but it turned into a gel-like shape - the iron sheet is inside the crucible, and people outside cannot see it, and the furnace temperature can only be estimated. You can only wait until the crucible furnace cools naturally, take out the crucible and smash it to see if the things inside dissolve into a large piece of steel cake and a layer of steel slag floating on the upper layer. If so, it will be successful.

...

A crisp clang!

The Hundred Sword with a green and bright body as bright as a mirror was cut into two pieces! What cut off was a steel piece that had been cut through the blade! In the afternoon, Meng Datou made a piece of steel piece of "medium carbon steel" made by the crucible. Without a handguard or a knife handle, he wrapped it with a cloth strip and opened the lower blade slightly. Chen Dexing used it to cut off a sword that was cut out of the Hundred Sword.

"Deng Ming'an, Deng Mingli," Chen Dexing threw the "steel piece" in his hand on a desk with a bang. "How is it? The Lonely King didn't lie to you, right? This steel... is better than the Baijian Steel in Song State?"

"The king is truly a god... This steel is better than a hundred times more refined!"

"Is this a deal done?" Chen Dexing smiled faintly and looked at the two of them, "You... should know what the Lone King wants you to do, right?"

The two looked at each other and showed a little dismay.

"King, this homeland is hard to leave..." As soon as Deng Ming'an said, Chen Dexing snorted coldly, scaring him to shut up quickly.

Deng Mingli was indeed sensible and immediately said, "What kind of homeland is hard to leave! Let those poor people pay back the tent of the King of Hell who owed our Deng family!"

Chen Dexing nodded in appreciation, and it was indeed a famous family of poetry and rituals! There was a way... He had already received a report from Liu Yang that 90% of the poor and lower-middle peasants on Zhoushan Island owed the Deng family the account - usury was the second source of wealth in addition to collecting rent.

In contrast, the unscrupulous businessman, the unscrupulous businessman, never put the tent of the King of Hell, but often does good deeds and starts serving porridge in the year of disaster. Whoever dies, her grandmother has no place to bury her in the Shen family and can have a thin-skinned coffin and a burial place... Of course, the premise is that the recipient of the beneficiary must be from Changguo!

The reason for this is that the Deng family in Changguo had a Jinshi, but the family was still alive! Therefore, the family had to be regarded as a hero in Changguo, so that they could bring together a "Changguo Pirates Group".

"That's right!" Chen Dexing smiled and patted the table. "Those poor men will never pay back the money from your Deng family if they are digging in the acres of land in Zhoushan!"

"Yes, let them go to Nanfen and Fushun to mine and be coolies!" Deng Mingan also reacted and shouted loudly. "If our Deng family wants them to come to Liaodong, they have to come obediently!"

Chen Dexing nodded with a deep expression of agreement, "That's it! If you can bring 3,000 households and 15,000 people to Nanfen and Fushun, you will pay all the mobilization, transportation and resettlement fees. You will be given to the Orphan King within one year. In this way, the Orphan King will let you invest 200,000 shares in Nanfen Tiefang... You only need to pay 200,000 yuan. In addition, the agents of Nanfen Tiefang in Zhejiang East and West Roads are also your Deng family."

Two hundred thousand guan plus 3,000 immigrants in exchange for 200,000 shares of Nanfen Tiefang plus two agency rights. This business is really... so smart.

The entire investment of Nanfen Tiefang, including Nanfen City and Fushun City, does not have 200,000 yuan! However, for the Deng family, they are also sure to make a profit without losing money!

"Okay!" Deng Mingli clapped his hands, "This business can be done!" He stood up and bowed to Chen Dexing, "I thanked the king for the Deng family in Changguo!"

Chen Dexing touched his beard and smiled and said, "Do it well, there will be many such business! Don't your Deng family have many relatives and friends in Qingyuan Mansion? In the future, they can be allowed to do business with the orphan king!" (To be continued, please search Piaotianwen, the novel is better and faster!
Chapter completed!