Wang Buxu brought Zhang Buyi to the next door.

The next door is very large, divided into many courtyards, and is guarded by the imperial army. It is the only place in the entire Han Dynasty that has the same level of protection as the royal palace.

Even in some aspects, the protection here is higher than that of the palace.

At least, high-level ministers can enter and leave the palace, but not here.

Everyone who enters here must obtain Wang Buxu's consent.

So even with Zhang Liang and Xiao He, they only came down twice under the leadership of Wang Buxu.

It was precisely because Wang Buxu was so important to this unnamed neighbor that many people began to complain, fearing that the King of Han would not miss business and engage in heresy.

But as a founding monarch, his prestige is definitely the highest in the entire country, and it is basically difficult for latecomers to catch up.

At this time, no one dared to stop Wang Buxung's decision.

"Your Majesty, we succeeded..." As soon as Wang Buxu entered with his forefoot, Ding Lian, the person in charge of the weapons workshop, ran over with excitement on his face, holding a handful in his hand that already had many gaps and was slightly curled up.

A tough long sword.

Wang Buxu glanced at the long sword in Ding Lian's hand carefully.

"How's the effect?"

"Your Majesty, please see, this is the result of striking with ten bronze swords a hundred times." Ding Lian handed over the iron sword in his hand.

"Go and take a look at those ten bronze swords!" Wang Buxu said directly.

I have already scanned this long sword before, so there is no need to look at it carefully again.

There are some gaps and some curling, but overall, it does not affect the use, it just affects the experience.

The last thing you need on the battlefield is a sense of experience, especially at this time.

Soon, Wang Buxu came to a pile of bronze swords.

Compared to iron swords, bronze swords had a more miserable fate.

There were deep gaps, and some even broke into two pieces.

"Iron can be sharpened like clay" is just an adjective. At this level, the long sword in Ding Lian's hand can also be called "iron can be sharpened like clay."

The ten bronze swords that were cut down could no longer be used, and three or four were broken. Although the swords themselves were affected, they could still be used reluctantly.

Isn't this cutting iron like clay?

"How is this sword made?" Wang Buxu asked hurriedly.

What he is most concerned about now is whether it can be mass produced.

If they can't be mass-produced, what's the use of these swords?

"Hey, Your Majesty, in addition to the method you gave, we used a new idea, and the output is definitely very impressive." Ding Lian chuckled, thinking about his discovery, he felt awesome.

What a great contribution.

However, in front of Wang Buxu, he still had to take it easy and said quickly: "Even if coke and carbon powder are used, the efficiency of refining steel has increased, but if all steel is used, the output will still not be able to keep up. So in

When forging, we used steel for the blade part, and still used iron for the sword body. In this way, the steel that was originally only enough to make one sword can now be used to forge three iron swords, and there is no problem in using them...

"

Ding Lian said blatantly.

The more Wang Buxian listened, the more he felt that something was not right.

Isn’t this the traditional steel-clad technology?

The ancient method of laminating steel is to put the two together and heat them. When they are red, take them out and forge them. Continue to heat and forge them, and finally connect them into one.

If you look carefully, you can still see the connection.

This method is indeed very material-saving, but it is too labor-intensive.

How long does it take for a sword to be ready for use from the factory?

It starts in ten days and there is no upper limit.

It was really hammered out with hammer after hammer, and it often took half an hour to heat it up. You could only knock it out for a few dozen times before you had to throw it back and continue heating it.

Although the subsequent heating will be faster, basically keep beating it for a few dozen times and then throw it back to heat for a quarter of an hour.

A sword can be struck not only tens of thousands of times, but at least thousands of times before it can be used.

Wang Buxu was slightly disappointed.

Although Ding Lian improved the forging efficiency of steel according to his own requirements, he even used steel-clad technology to save materials.

However, this ancient method is still unable to meet the needs of mass production in a short period of time.

If you want to arm the 50,000 cavalry on the front line within half a year, you must recruit at least 3,000 craftsmen.

These days, those who know how to blacksmith are high-level technical jobs, so it's hard to find them.

Therefore, if you want to improve efficiency, you have to think of other ways.

"Go and find a place outside the city near the water to encircle it!" Wang Buxu thought for a moment and then directly ordered Zhang Buyi.

Separating iron from iron ore is also a very important step.

Once this step is done, the number of subsequent forgings can be reduced.

Moreover, in the current iron smelting process, too many harmful impurities are not removed and can only be removed through continuous forging.

Some of them can be solved during the process of refining molten iron.

The blast furnace iron king knows that he is not hungry, and he also knows general things.

But if you ask for specifics, you're going to be blind.

I originally hoped that Ding Lian and the others could make something famous, and I would provide some guidance, but I didn't expect that they only focused on the quality of the weapons, and didn't pay attention to the steps of iron-making at all.

When Wang Buxing returned to the palace, he began to use his free time to write and draw. There were many things to do.

It is unknown whether the blast furnace can be used, but Wang Buxin has a way to improve the forging efficiency.

Luoyang is surrounded by water, so it is not difficult to find such a place.

Early the next morning, Wang Buyi asked Zhang Buyi to find someone to dig a large canal. The area facing the river should be larger, and the internal passage would begin to narrow.

There is no need to dig the joint for the time being.

If you just dig a water channel, you don't need to dig it too deep. A depth of one or two meters is enough.

So Zhang Buyi directly mobilized 500 forbidden troops to dig out in person.

Anyway, it doesn’t need to be a long distance, just over a hundred meters in total.

In just one day, the Forbidden Army dug the channel as required. Except that the two ends were not opened, everything else was done as required.

In the early morning of the third day, Wang Buxu came here with a group of people.

Arriving at the dug channel, Wang Buxian roughly found a place, stretched out his finger, and the craftsmen began to get busy.

"Your Majesty, what are you doing?" Zhang Buyi looked at the busy craftsmen in confusion, as if he had suddenly become a fool and couldn't understand anything.

"You'll know when the time comes!" Wang Buxu showed a mysterious smile.

The craftsman first went down to take a look, then lifted the stone hammer and began to harden the ground.

After a while, the soil layer was almost hardened, and smoother stones began to be paved on it, especially the middle point, which was specially treated.

Of course, it doesn't take much effort, it's just a little bit special.

Then, several wooden boards were put together through the gaps reserved above, and in the middle was a tall wooden stake with a high protrusion.

A shelf was set up at both ends of the channel to support it. At the top of it, there was a horizontal device that protruded about half a meter.

Referring to the principle of the wheel, plus the axis plan given by Wang Buxu.

The craftsman built a simple model out of wood, and in the middle of the protrusion is an I-shaped device that uses the lever principle to work.

After a lot of work, a simple experimental device was completed.

The time is tight and the tasks are intense. It is naturally unrealistic to want to do it once and for all.

The significance of this time is to test whether this principle is reliable and feasible.

So what is carried below is a stone that weighs only ten kilograms and has no chassis. It can be hit directly on the ground.

Soon, the installation was completed and both ends of the channel were opened.

A large amount of river water began to pour in, and the water level was gradually rising.

The wooden wheel that had been soaked in water began to rotate slowly under the pressure of the water.

As the number increases and the water pressure increases, the speed of the wooden wheel's rotation also begins to increase.

And the stone, which weighed about ten kilograms, began to hit the ground hard and very regularly.

Seeing this scene, Wang Buxian smiled.

Pointing to the stone that looks like a pile driver, he said: "Using it to replace human forging, do you think the efficiency of making weapons will be improved?"
To be continued...