Datang: Combining the dual combat power of Lu Bu and Xiang Yu at the beginning

Li Zhiyun first ordered everyone to set up the crucible and prepare the desulfurized coal underneath.

"Everyone, I will now start showing you how to make the barrel of a gun.

Li Zhi took out a piece of paper and began to operate.

I saw him writing and drawing, marking various graphics and parameters on the paper.

I have to say that this picture was seen by everyone, and I was overjoyed.

Not long after,

a drawing of a cannon barrel was handed over to Zheng Wenxiu:

"Everyone follow me, first make a clay mold with yellow clay and clay, the clay mold is composed of two parts, the mold core and the mold shell, and we use the lost wax method to make it!"

After Li Zhiyun finished speaking, he began to act.

I saw that he first took a wax block of suitable size, the length, width and height were consistent with the marks on the drawing, carved it into the shape of the barrel, and drilled out the barrel.

"Everyone pay attention to the overall size must be strictly in accordance with the drawings, otherwise it will cause a small barrel and a large shell.

Luo Shixin on the side immediately added

: "The emperor is right, the cannon barrel is small and the shell is large, it is easy to check, and the result is to cause explosion and harm to yourself!" Li

Zhiyun: "Lao Luo is right, don't let the enemy not be killed, but blow ourselves up!"

Everyone nodded quickly.

Everyone immediately followed Li Zhiyun's demonstration and did it seriously.

About an hour later, the wax film of the barrel was made.

Li Zhiyun took clay and carefully wrapped the wax film, and filled the inside with sediment, leaving only a small hole in the tail of the barrel.

Li Zhiyun lit the coal and began to heat the barrel.

After a while, the wax mold inside the barrel melted.

"Wow, Emperor Emperor, look quickly

, the contents of the cannon barrel have melted!" Li Zhiyun glanced at Luo Shixin and said to everyone:

"Just now, after heating, the inside of the clay mold formed a cavity in the shape of a cannon barrel!"

"Emperor

, is it similar to the production of firecrackers?" Li

Zhiyun nodded:

"Then I won't say more, I'll teach you how to cast cannons!"

Everyone nodded.

If

it is made, it is enough to dominate the world!

I saw Li Zhiyun directly pouring coal into the furnace and igniting it.

"Everyone, let's start adding copper below, and then blow air to the furnace to raise the temperature and melt the copper into molten copper!"

With a blaze of incense, molten copper began to appear in the furnace, and this scene was very magical for Kinderman.

She jumped up and down happily:

"Emperor, look at it! The

color of the copper water!" Li Zhiyun observed the color of the copper water and ordered everyone to immediately dig a hole in the open space outside!

Li Zhiyun quietly controlled the speed of copper water flowing out, striving for perfection.

"Okay, bury this in dirt, and it'll all cool and solidify tomorrow morning!" After

the demonstration, everyone started making it.

"Emperor, leave it to me here, you are also tired for a day, it is better to go back and rest."

"Yes, Emperor, today is the first day of your canonization as a concubine, and everyone is waiting for you!"

Li Zhiyun had to say:

"Fortunately, I will come back tomorrow morning to teach you the next process!" Li

Zhiyun knows the importance of casting cannons, which is no less than the invention of the atomic bomb in the later life!

If whoever masters thermal weapons.

So Li Zhiyun instructed uneasily:

"Everyone must work hard, master various technologies, and remember not to underestimate the casting process!"

Li Zhiyun left in a hurry.

As a result, he collided with Wu Shu.