Bruce took a few blacksmith apprentices to work, and the slaves pushed a cart to send hundreds of pounds of weapons scrap into the blast furnace. The heat of the blast furnace was rolling, and the temperature of the entire blacksmith shop was at least fifty degrees.

Bruce was shirtless, with only a piece of cloth wrapped around his crotch, and directed everyone to heat the blast furnace. Because there was no coal, the blacksmith could only use charcoal for heating.

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 up to 900 to 1,000 degrees, and the temperature required for steel smelting is at least 1,000 degrees, at this time, it is necessary to blow the bellows to support combustion to reach the ironmaking temperature.

Su Lun didn't know much about ironmaking, but he remembered that heating the air in advance and then injecting it into the ironmaking furnace could increase the temperature of the furnace by about 200 degrees, so that the temperature of the ironmaking furnace could reach 1,200 degrees, which was a little higher than the temperature of using coal to make steel.

In fact, although the use of coal to make iron has many advantages, such as fast iron-making, high output, low cost, etc., but this has a serious drawback, that is, the sulfur content of coal, most of the coal has a high sulfur content, and the iron will also contain sulfur in the iron, which will cause a serious consequence, the iron becomes brittle.

The quality of iron has deteriorated, and forged weapons cannot be compared with weapons that do not contain sulfur, and even break directly when chopping, a situation that cannot be compensated for by the low cost.

After all, no matter how low the money is, the things you buy can't be used, so the money is worthless.

As for steelmaking, Su Lun also only understands a little bit, the difference between steel and iron is the amount of carbon, more carbon is iron, less is steel, if the carbon content is too low, it is wrought iron, but what is the specific proportion, Su Lun really doesn't know.

"I knew that I would cross, and I should have written down all these knowledge points in the first place. Su Lun rubbed his head and complained.

Although it is not known what the carbon content of steel and iron is, as an experienced blacksmith, Bruce still has some experience, and several blacksmith apprentices, led by Bruce, set up first-class anvils and heat them that have been smelted into iron ingots before hammering.

This way of repeatedly beating and heating iron ingots is to forge steel, and after repeatedly exercising the iron ingots, it is called a refining, this operation is repeated a hundred times is called a hundred steel, and it is also the best steel on the market at present, and the weapons cast with this steel are the elite of the elite, in the Kingdom of Florence, the weapons and armor used by the vast majority of the army are usually refined in thirty.

Of course, there are better than this kind of hundred steel, that is, the weapons made by the dwarves, of course, although the dwarves' skills are higher than those of humans, but in fact, it is also difficult for the dwarves to forge a hundred steel, but they also have other unique secret methods.

After seeing the normal production of the blacksmith shop, Suren began to look for ideas to make money, and the territory has been invested but not produced, which is also a lot of pressure for Suren, when Johnson left, Suren gave him a hundred jinnars, and now he only has two hundred jinnars left in his hand.

There are still some things in the storage space, two pieces of refined iron, some gems, and two silver treasure chests, the gems are the rewards for defeating the natives last time, Su Lun checked it, most of these gems are of average quality, only two are of good quality, and they can be sold to gem merchants for up to three or four hundred gold coins. This amount of gold is estimated to be spent in a month.

And the distance territory can be self-sufficient, it is estimated that it will take at least two years to have an income, as soon as he thinks of this, Su Lun wants to rob the treasure of the dragon, the legend of the 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, and at least after the legend can fight against it.

"By the way, there are still two treasure chests that haven't been opened. With that, Su Lun chose to open the treasure chest.

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

"Congratulations host, you've got a copy of the mechanical controls. ”

"Congratulations to the host, you got a bottle of Beidou Heavenly Jelly. ”

"Mechanical control, what is this?" Su Lun picked up the book and flipped through it, which recorded the manufacture and principles and uses of various machines. After reading the introduction of the system again, Su Lun realized that this was also a new skill generated by the system skill after fusing this world.

In the original game, this skill was controlled by the iron, and it could summon mechanical soldiers such as the Wooden Ox Flowing Horse, but after arriving in this world, it became a machine, and even if you learn it, you can't make a Wooden Ox Flowing Horse, and you need to improve it later.

The system is not too pitiful this time, and the upgrade route is given, first of all, you need to upgrade the mechanical control to the advanced level, and then learn the secret art of the machine, and then after learning the secret art of the machine, you have to find an NPC, after the peach blossom fairy passes its test, you will get a reward, this reward is awesome, it is actually a puppet golem making process.

This system actually made all the wizards' golem making processes, and directly turned some of the iron men inside into steel golems. The Iron Golem Suren has never seen it, but the reputation is still known, and there is no problem with a Steel Golem sweeping a knight order, note that it is not a cavalry, it is a knight.

Ignore the puppet golem, it's the Peach Blossom Fairy who doesn't know where to find it? In the game, the Peach Blossom Fairy can be found as long as he goes to the Peach Forest, but where can I find him in reality? This broken system doesn't give a hint.

Although it is not possible to craft a mechanical golem, it can be useful, such as making simple mechanical tools to speed up the construction of a territory, as well as making a hydro forge and a hydro blower for the blacksmith.

With a hydraulic forging machine, the speed of forging 100 steels can be increased by at least dozens of times, after all, where can manual hammering be compared to the machine, and the machine hammering speed is uniform, and the strength is enough. Originally, he wanted to find some craftsmen to do research, but now that he has this mechanical control, he can make one himself.

After learning to control the machine, Su Lun picked up a glass bottle placed next to him, the bottle contained a blue translucent liquid, as the bottle shook, the liquid inside shimmered with a little starlight, which looked very beautiful. This thing is also rare in the game, and its effect is simple, which is to increase attributes.

[Beidou Heavenly Jelly: A magical liquid formed by the power of the stars, which can enhance strength or physique after use. After use, the strength or constitution attribute is +3, only one type is triggered at a time, and it can be reused. 】