Bruce brought several blacksmith apprentices to work, and the slaves pushed a material transport truck to send hundreds of kilograms of scrap iron into the blast furnace. The blast furnace heat waves were rolling, and the temperature of the entire blacksmith shop was at least fifty degrees.

Bruce was shirtless and wrapped a piece of cloth under his crotch, directing everyone to heat the blast furnace. Because there was no coal, the blacksmith shop could only use charcoal to heat it.

The heat provided by charcoal is limited, only 700 degrees. Of course, this is in an open environment. If it is in a special furnace, the temperature can reach a maximum of 900 to 1000 degrees, and the temperature required for steel smelting is at least 1000 degrees. At this time, the bellows blowing and combustion are required to reach the iron smelting temperature.

Su Lun didn't have much knowledge about iron smelting, but he remembered that after heating the air in advance and injecting it into the iron smelting furnace, it could increase the temperature of the furnace by about 200 degrees. In this way, the temperature of the iron smelting furnace can reach 1,200 degrees, which is a little higher than the temperature of using coal to make steel.

In fact, although using coal to smelvet iron has many benefits, such as fast iron smelting speed, high yield, and low cost, this has a serious defect, that is, coal has sulfur content. Most coal has high sulfur content. When smelting iron, it will also contain sulfur, which will cause serious consequences, and iron becomes brittle.

The quality of iron has decreased, and the forged weapons cannot be compared with those without sulfur. They may even be broken directly when chopped. This situation cannot be compensated no matter how low the cost is.

After all, no matter how low the money is spent, the things you buy cannot be used, so the money spent is not worth at all.

As for steelmaking, Su Lun only knows a little bit. The difference between steel and iron lies in the amount of carbon content. If the carbon content is too low, it is iron. If the carbon content is too low, it is iron. But Su Lun really doesn't know what the specific proportion is.

"If I had known that I would have traveled through time, I should have written down all these knowledge points at the beginning." Su Lun rubbed his head and complained.

Although I don’t know what the carbon content of steel and iron is, as an experienced blacksmith, Bruce still has some experience. Under the leadership of Bruce, several blacksmith apprentices set up first-class anvils and heated the melted iron ingots before pounding them.

This method of repeatedly pounding and heating iron ingots is to forge steel. After repeated training of the iron ingots, it is called a refining. This operation is repeated a hundred times and is also the best steel on the market. The weapons cast with this steel are all the elite among the elites. In the Kingdom of Florence, most of the armies usually use weapons and armor at thirty.

Of course, there are also better ones than this kind of steelmaking, which are weapons created by dwarves. Of course, although the dwarves' skills are higher than those of humans, it is actually difficult for dwarves to forge steelmaking, but they have other unique secret techniques.

After seeing the normal production of the blacksmith shop, Sulun began to look for ideas to make money. The territory has been invested and has not been produced, which is also a great pressure for Sulun. When Johnson left, Sulun gave him 100 kinners, and now he only has 200 kinners left.

There are some things in the storage space, two pieces of fine iron, some gems, and two silver treasure chests. The gems were the rewards they received for defeating the natives last time. Su Lun checked and found that most of these gems are of average quality, and only two of them are of good quality. Selling them to gem merchants can sell up to three or four hundred gold coins. This gold coins are probably spent in one month.

It is estimated that it will take at least two years to have an income. When Su Lun thinks of this, he wants to rob the dragon's treasure. The legendary dragon is very rich. Of course, he can only think about this idea. Not to mention that the dragon is rare now. Even the power of the dragon itself needs to be at least legendary before it can be fought against it.

"By the way, there are still two treasure chests that have not been opened." As he said that, Su Lun chose to open the treasure chest.

A flash of inspiration flashed, the treasure chest disappeared, and the system prompt sounded in my ears.

"Congratulations to the host, you have obtained a mechanical control."

"Congratulations to the host, you got a bottle of Beidou Tianshui."

"Mechanical control? What is this?" Su Lun picked up the book and looked through it. The book recorded the manufacturing, principles and uses of various machinery. After reading the introduction of the system, Su Lun realized that this was also a new skill produced by system skills after the integration of this world.

In the original game, this skill was controlled by machine and iron, and could summon mechanical soldiers such as wooden ox and flowing horses, but after entering this world, it became a production machine. Even if you learn it, you cannot create wooden ox and flowing horses. You still need to improve it later.

The system is not too crap this time, and it gives an upgrade route. First, it needs to upgrade the mechanical control to advanced level, then learn the mechanical iron secret technique, and then learn the mechanical iron secret technique, and find an NPC. After the Peach Blossom Immortal passes its test, he will receive a reward. This reward is actually a puppet golem production process.

This system actually created the wizard's golem's golem, and directly turned some of the iron men inside into steel golems. Su Lun had never seen the steel golem, but he still knew his reputation. There was no problem with a steel golem sweeping a knight. Note that it was not a cavalry, but a knight.

No matter what the puppet golem is, it is the Peach Blossom Immortal. I don’t know where to look for it? In the game, you can find it by just going to Taolin. Where can I find him in reality? I won’t give you a prompt for this broken system.

Although mechanical puppets cannot be made, this mechanical control is still useful, such as making some simple mechanical tools to speed up territory construction, and making a hydraulic forging machine and hydraulic blower for the blacksmith shop.

With a hydraulic forging machine, the speed of forging steel can be increased by at least dozens of times. After all, manual pounding can be compared with machines, and the machine pounding speed is even and the strength is enough. Originally, he wanted to find some craftsmen to study it, but now he has used this mechanical control book, so he can make one by himself.

After learning mechanical control, Su Lun picked up a glass bottle placed next to him. The bottle contained a blue translucent liquid. As the bottle swayed, there were stars flashing in the liquid inside, which looked very beautiful. This thing is also rare in the game. Its effect is very simple, it is to increase attributes.
Chapter completed!