From ancient times to the present, humans have been looking for power that can be supplied stably. Before the invention of the steam engine, the power that humans could use was mainly composed of animal power, wind power and hydraulic power.

The output of animal power is too small, and the maintenance cost is too high. Not only is the wind power scarce in inland plains, even if there is one, it is not stable enough. The only thing that can be used stably is hydraulic power.

There are several prerequisites to use water power on a large scale: first of all, of course, is the water truck, and only with the water truck can the most basic power be provided.

The second is the reduction gear set - the reverse dress is called the acceleration gear set. The power provided by the rotation of the water truck is very slow. It is OK if it is just used for pushing the mill, but if it is used as a general power, the speed of the gear set is required.

In addition, the bellows driven by hydraulic power are also one of the important pre-technology for increasing furnace temperature. If this road is completed, the only difficulty in blast furnace steelmaking is the coking process.

Finally, if you want to apply hydraulic power on a large scale, it is best to build a dam to increase the water level to increase the power. After all, the power provided by ordinary rivers through the water flow is still very limited and cannot meet the needs of large-scale industrial production.

Just as Xiao Heng was thinking about the subsequent technological route, the iron was already jingling there - Xiao Heng's sword embryo gradually formed by the hammer's repeated knocks, and many burrs and uneven areas gradually became smooth and soft.

The red fire was reflected on Wang Tiehui's face, and his expression seemed to be filled with chicken blood. Under the reflection of the fire, Wang Tiehui's muscles seemed to be coated with oil, and sweat kept flowing down his forehead, gathering into a trickle in the gullies of the muscles...

...The sound of thrashing, dim flames, and splashing Mars, everything seemed so primitive but indescribable shock.

By the time the forging was completed, it was almost dark.

"Thuh..."

The water vapor evaporated, and the red iron sword completed the final quenching in the river, and then installed the wooden hilt and sword grid, and opened the blade on the grinding wheel... At this point, the sword was completed.

Wang Tiechu pulled out a hair, put it on the blade and blew it, and the hair immediately divided into two sections and slowly fell down...

At this time, Wang Tiechhui's face was full of fanaticism - as a blacksmith, who didn't have a dream of forging magical weapons? And now... this dream seems to be held in his hands.

"Young Master." Wang Tiechhui offered the steel sword to Xiao Heng with great enthusiasm.

"Very good, thank you for your hard work." Xiao Heng nodded.

Xiao Heng started recording mode since he casted the sword embryo with steel. He originally wanted to keep it as a souvenir, but he didn't expect to record the entire process of how the ancients made weapons. If it was edited again, this scene would be very shocking.

"Fortunately, I have not been humiliated!" Wang Tiech looked satisfied.

Xiao Heng also praised him very well.

Holding the iron sword, he returned to the small building, and happened to be sitting at the door to enjoy the cool air.

"Young Master, is this?" Miss Qin suddenly became interested when she saw Xiao Heng coming back with a sword in his hand.

"Today's first furnace of molten steel is the result." Xiao Heng picked up the long sword and waved it slightly. The movements were no different from children's play.

The girl in white frowned unconsciously.

"Why do you think I can't use a sword for this expression... Why don't you try it?" Xiao Heng turned his hand and handed the sword over.

"..." The girl in white changed her expression after getting started, and then she frowned again.

"How?" Xiao Heng asked.

"Is this sword cast?" Although the girl in white asked questions, she was obviously sure in her heart.

"Yes." Xiao Hengqi said, "How did you know?"

"Cast iron is hard but not tough." The girl in white shook a sword flower, but only a few shadows appeared. "But this sword is a bit strange."

"How strange?" asked the young lady of the Qin family.

Both steel and pig iron are very hard, but the difference is that steel is hard but not brittle... So, Xiao Heng pointed to a landscape stone buried outside the door and said, "Why don't you try chopping?"

"Cut the stones!?"

"Try it." Xiao Heng is still confident about the quality of this steel.

"when!!"

Mars splashed, and there was a white dot on the stone. The blade did not collapse or rolled up, and it was intact.

"Is this cast iron!" The girl in white was shocked. If it were an ordinary cast iron sword, it would have been broken if it was cut at this force.

"This is steel...the molten steel is directly cast out of the oven, and then it is forged and renovated." Xiao Heng said with a smile.

Modern swords usually follow this path. Although they are not molded with steel, they are all ready-made boards. After buying special alloys from steel mills, they can cut and polish them by themselves, and finally match the handle and scabbard to put their own inscriptions on them.

As for modern folding forging, it is basically just for showing off skills and patterns. The forging technology itself does not bring much more benefits to the sword than modern steel and heat treatment technology, and its performance will even decrease after forging.

What we are talking about here is a relatively ordinary mass-produced steel. As for the tools made of special powder-smelted alloys, there are review videos online... You can see them casually by searching for iron pipes, security doors, etc. If you get it in ancient times and combine it with a suitable cutting angle, it will be literally cut iron like mud!

Although the sword in the white-clothed girl's hand was not that perverted, it was much stronger than the ancient sulphur and phosphorus iron.

After testing the hardness, the girl in white cut paper, wood, and copper coins under Xiao Heng's suggestion... The more she tried the girl in white, the more surprised the girl's face was. Until the thick stack of copper coins were easily cut off, the girl in white held her and didn't want to let go.

"Do you like it? If you like it, I'll give it to you." Xiao Heng smiled. As for the souvenirs... he would just collect a piece of it when Jia Ye was cast out.

"...How can I ask the young master to give up my love?" The girl in white shook her head and finally pushed the sword back.

"This thing... forget it, there will be something better in the future." Xiao Heng suddenly thought that he had ordered a modern craft Longquan sword. It will arrive in about two months, so he didn't push it back and forth.

Then the girl in white looked at Xiao Heng throwing the baby into the corner beside the bed.

"I'll go out again." Xiao Heng said hello and left.

"How? Is that sword really good?" asked the young lady of the Qin family curiously.

"Apart from the harder sword spine, I don't give in to it more than mine... It's a pity." The girl in white sighed with a pearl covering her dust.

"But sister's sword is really a famous sword made by hard work. But Young Master Xiao's meaning seems to be able to create many things at any time?" The focus of Miss Qin's attention is obviously different from her best friend.

"I'm going to see how this steel is made until tomorrow." The girl in white finally realized the problem.

Although overall, the sword brought back by Xiao Heng is not as good as the one on her waist, but the problem is that her sword yields are scarce, and it takes a lot of manpower and material resources to occasionally produce one or two fine products after a long period of forging. However, the sword brought back by Xiao Heng is unknown how many swords can be produced in a day!

If you can maintain the same level as this sword, then this productivity will be very terrifying!
Chapter completed!