Lai Wu was very unlucky. After jumping into the sea to escape, he quickly swam to the shore on the side of the pier, climbed ashore and walked quickly into the forest.

After walking not far, he got separated from his companions who had climbed ashore together, and then lost their way again. At night, the forest was dark, and Lai Wu did not dare to run around. He climbed up a tree and hugged a tree trunk. I spent the night in a daze.

At dawn the next day, Lai Wu heard the sound of dogs barking in the forest from a distance. Knowing that the other party was searching for fish that had slipped through the net like them, he immediately jumped down from the tree and ran deep into the forest.

By afternoon, I was tired and hungry, and my body was shaking. I thought that there must be birds and beasts in the forest that I could catch to satisfy my hunger. But firstly, the knife in my hand had long been thrown into the sea. Secondly, this broken forest , there were not many small animals to catch. I finally climbed a few trees, dug out a few bird's nests, and ate a few bird eggs, but I became more and more panicked. In this situation, I wouldn't starve to death here. .

After wandering around in the forest for a while, I finally met a few companions who had escaped. Two of them were his brother Lai Si's men. Others included Lao Bangzi and Lao Yutou. There were eight or nine people in the group. , squatting in the woods and discussing for a while. I thought that I could try my luck at the beach. Maybe I could find the two ships that were not burned, seize them when they were not prepared, and then leave this place.

I stumbled to the beach, and sure enough, I saw the two boats that had not been burned docked at the pier.

Lai Wu and a few others quietly entered the water, swam slowly under a boat, picked each other up, and climbed towards the boat.

Three or four people climbed up one after another, but there was no movement. Lai Wu was so happy that he followed and climbed up. But as soon as he climbed up the side of the ship and exposed his head to look around, he suddenly found that five or six muskets were aimed at him. The first one to come up was Several companions squatted on the deck dejectedly.

Just as Laiwu was about to shout loudly, he saw a big man with one arm opposite him, putting his finger to his mouth to signal him not to shout.

Looking at the black muzzle of the gun, Lai Wu could only imitate his companions, jump off the side of the ship, and squat on the deck.

It was not until the two of them were unable to climb up that Chen Dalang led his men and held up muskets and ordered the pirates in the water to swim to the dock and capture them all.

"Lai Wu, you used to follow Kang Yongzu, right?" Yu Fukun thought for a moment and asked Chen Dalang.

"That's right, I used to follow Kang Yongzu. He had an older brother, Lai Si. Half a year ago, that guy had a fight with us in Zhangpu. Brother Dahai pushed him to the ground and gave him a lesson!" Chen Dalang said.

Hearing "Brother Dahai", Qi Tian raised his head. That was his eldest brother. In a daze, it seemed that it was a long time ago, but when he mentioned Lai Si, he realized that it was only half a year ago. The appearance of his eldest brother, but It's a little blurry.

"Then just chop it off!" Yu Fukun glanced at Qi Tian and sighed slightly in his heart.

In the following days, Jianye City guards and Minzhuang successively captured more than 20 people in the wild. Counting the number of attackers provided by the thieves, there were more than 260 people, and more than 60 people were killed in the front and back (including the injured and dead in front of them) ), captured more than 180 people, and only a dozen of them escaped without a trace.

After searching for several days, no trace of the thieves was found, so we had to give up. Maybe they drowned in the sea, died of illness or disease in the mountains, or were killed alone by nearby natives. It seems possible.

All production and life in Jianye City and Heishanbao have gradually returned to normal.

In Black Mountain Castle, a group of craftsmen gathered around an iron-making blast furnace, all sweating profusely as they stared at the blazing flames in the blast furnace. As the flames continued to change, it meant that the iron ore began to undergo chemical reactions.

The iron ore put into the blast furnace is carefully beneficiated to remove other impurities to improve the grade of the iron ore. It is then crushed, ground, and sintered before it is finally sent to the blast furnace for smelting.

The role of a large amount of refining coke is to provide heat and produce a reducing agent - carbon monoxide. Limestone is used to make slag and remove gangue to separate the iron produced by smelting from impurities.

The main equipment for iron-making is the small blast furnace in front of you. During smelting, iron ore, coke, and limestone are added from top to bottom through the feed port on the top of the furnace. At the same time, hot air is blown from bottom to top through the air inlet using a bellows.

After entering the furnace, at high temperature, the reactants fully contact and react to obtain iron.

Blast furnace ironmaking refers to putting iron ore, coke, carbon monoxide, hydrogen and other fuels and fluxes (theoretically speaking, iron can be smelted at high temperatures by mixing metals with stronger metal mobility than iron and ores) into a blast furnace for smelting.

Impurities are removed to obtain metallic iron (pig iron).

As the flame gradually turns purple, it indicates that the temperature in the furnace is gradually increasing.

After more than four hours, the reaction of the ore in the furnace has been completed, the molten iron sank to the bottom of the furnace, and the slag floated on top.

"Almost..., that's it!" Malciolu was sweating profusely, staring at the flames in the blast furnace that began to change color.

A craftsman gritted his teeth, opened the baffle of the tap hole, and released the molten iron from the tap hole. The molten iron was introduced into the molds prepared in advance to form iron bars, iron blocks, and iron plates.

Preparation of ironware for the production of daily tools.

In Qi Tian's opinion, if a high-strength stamping equipment can be built, when the molten iron has solidified but has not yet hardened, it can be placed under the stamping equipment and various molds can be used to produce corresponding tools (instruments) in one go.

The development of science and technology has a long way to go! However, this small blast furnace has actually produced qualified ironware at one time, which can be regarded as a small progress.

The gangue in the iron ore in the blast furnace, the coke and the ash in the injection material combine with the limestone and other fluxes added into the furnace to form slag, which is discharged from the tap hole and the slag hole respectively.

Large particles of slag are naturally accumulated outside the steel workshop and will be transported to the highway to pave the road.

The fine slag is stored to provide raw materials for cement kilns.

Since iron can be made out of the furnace at once, it seems that making steel should be easier.

The main purpose of steelmaking is to reduce the excessive carbon content in pig iron. For steel, phosphorus is a harmful element. It will reduce the plasticity and toughness of steel and cause cold brittleness (as the temperature decreases, the strength of the metal material decreases.

increase, but the toughness decreases), its content needs to be limited to less than 0.05%

.However, manganese element can increase the sturdiness, strength and wear resistance of steel. In addition, silicon element also helps to enhance the strength of steel. Therefore, when making steel, it is necessary to remove phosphorus, sulfur, etc. in pig iron that affect the performance of steel.

elements, while retaining or adding silicon, manganese and other elements and adjusting the ratio between elements.

Although people in the steel industry or construction industry in later generations knew these principles and applications. However, in the late Ming Dynasty, people may simply keep heating molten iron to make steel, so it was called "Hundred Steelmaking".

.

The most commonly used method is called "steel filling", also known as "tuan steel". It is a high-quality steel with a high carbon content and uniform texture obtained by smelting pig iron and wrought iron together (the carbon content is between

(0.05% to 2.0% iron is called steel). This original steel-filling smelting method has been invented at least during the Northern and Southern Dynasties.

The steel filling method is an outstanding achievement in ancient my country's steelmaking technology. Its invention and promotion are of great significance for increasing steel production and improving the quality of weapons, farm tools and hand tools. Therefore, during the Sui and Tang Dynasties, this method It was favored by smelters; by the Song Dynasty, it was popular all over the country, and some innovations and improvements were made.

Good, became the main steel-making method at that time. In Shen Kuo's "Mengxi Bi Tan", in addition to recording the smelting methods at that time, the word "steel pouring" was also mentioned for the first time. He said: "Those who forge iron in the world are called steel.

It is bent with soft iron, and then pig iron is trapped in the middle, sealed with mud and tempered, and forged into it. It is called group steel, and it is also called steel filling. "

By the Ming Dynasty, in addition to improved steel filling technology, a new steel filling smelting method was also produced, which is the "Suzhou Steel" smelting method.

"Suzhou Iron and Steel" is the advanced stage of the development of Guangang, and the advantages of Guangang are most fully demonstrated here.

According to legend, "Suzhou Steel" was invented by people from Jiangsu, so it is called "Suzhou Steel".

Its smelting method is to smelt pig iron and wrought iron together. When the pig iron melts and the iron juice is about to flow, rub the molten pig iron into the wrought iron and pour it into the steel.
Chapter completed!