Iron Dynasty

The next day, King Wei and the mighty fleet left the Qingzhou Wharf.

Xiao Ming looked at King Wei's fleet with some envy. He didn't know when his Qingzhou city would have such a majestic fleet.

In the shipyard in Qingzhou, his Galen ship is still under intense construction, and he only hopes to get three Galen warships as Zhang Liang said by the end of the year.

At that time, the artillery will be placed on the Galen ship. In this era of sailing warships, he has also taken a step into the sea.

But thinking of artillery, his head suddenly became big again. The number of artillery required on the battlefield is also a lot, and it is a heavy burden. It seems that training a powerful navy really needs to keep smashing in it. money.

After sending King Wei, Xiao Ming went directly to the equipment department.

At this time, Chen Qi was leading a craftsman to cast iron molds, and the technology library in his mind was full of artillery casting methods.

Naturally, Xiao Ming would not take the detours that his predecessors had taken. The method of casting guns he used this time was the method of casting guns with iron molds. This iron mold casting method actually existed in ancient times.

However, it was adopted to cast artillery in the Qing Dynasty.

There is no technical difficulty in this method, only the current craftsmen can't think of this method at all.

All that is sometimes rare is not technology, but discovery technology.

Now Xiao Ming has taught Chen Qi and others the complete iron mold casting technique. For these skilled craftsmen, it is only a matter of time before they can try it out.

His Royal Highness, now we are making mud cannon embryos. Chen Qi saw Xiao Ming coming, and immediately walked over.

The incident of casting the artillery made him unable to sleep well for days and nights, thinking day and night about the method Xiao Ming taught him.

And the artillery, the weapon Xiao Ming mentioned, made him inexplicably excited. As Xiao Ming said, if the artillery was built, Chen Qi would be famous enough to be remembered in history.

But these days he led the craftsmen to try to forge the artillery, only to realize that the manufacture of the artillery is not so simple, and now only the cannon mold has failed several times.

Looking at the failed mud cannon embryos, Xiao Ming said, Failed again?

Chen Qi's expression was a little tired, and his face was ashamed, His Royal Highness, at the beginning, the craftsmen were born by hand.

Xiao Ming nodded and looked at the craftsman who was making the clay cannon embryo.

This iron mold cast gun must first be divided into 4-7 sections according to the size of the iron gun to make a clay gun, and then according to the number of sections of the clay gun, the iron mold clay shape is made. Make the surface smooth and neat, then dry for later use.

A prefabricated handle is placed in the clay mold, which is cast into one piece with the iron mold when pouring.

Then, when using the clay mold to turn the cast iron mold, first invert the muzzle section on the clay flat plate, fill one of the petals with mud, after drying, cover the clay flat plate, tighten the mold, and pour the first part. A petal of an iron mold.

Then remove the filling mud, and cast another piece of iron mold in the same way. In this way, by pouring section by section, a complete set of iron molds can be cast into layers of tenon joints.

Finally, when casting iron cannons with iron molds, first paint the inner surface of the mold with a paint made of fine rice husk ash and fine sand mud and water, and then paint a second layer of paint prepared with extremely fine coal powder, and then fasten the iron The mold is heated, the mud core is assembled, and the molten iron is poured. After solidification, immediately take off the iron mold, while the gun body is still red hot, remove the burrs, remove the mud core, and get the finished gun.

But this time, in order to reduce the blast rate of the gun, he plans to use a hollow ceramic core instead of a mud core, and inject water into the hollow ceramic core to cool the iron in the barrel.

This is also a native method of barrel cooling technology, only to reduce the rate of blasting and produce high-quality iron guns.

The matter of extorting other vassal kings was handed over to Zhan Xingchang, and now Xiao Ming has devoted himself to the equipment department, and Chen Qi is bound to produce this artillery.

This time the barbarians went south, an army must be dispatched, and if they wanted to stop the barbarians from conquering Cangzhou, the only way to stop the barbarians from conquering Cangzhou was to make the barbarians retreat in a panic.

After all, his artillery wasn't the torch of the Great Yu Kingdom, and the range of three to four miles was enough for the barbarians to drink a pot.

As Chen Qi said, after the failure a few days ago, the craftsman has mastered some skills.

However, the artillery has not been cast, and the artillery casting specification has been released. Xiao Ming divided the artillery into 6-pound, 9-pound, 12-pound, 18-pound, 24-pound, 32-pound and 42-pound guns.

This time, the artillery that Xiao Ming cast was used to defend the city. Naturally, he had to use heavy artillery, so he used an 18-pounder. The 32-pounder and the 42-pounder were considered giant guns, so there was no need. An eight-pounder can be used as a naval gun.

And the higher the pound, the bigger and heavier the gun body is, and handling itself is a problem.

In one day, according to the design standard of the 18-pound gun, the equipment department made half of the mud gun embryo, and the rest can only be continued tomorrow.

The mud cannon embryos are still cast iron molds, and it will take at least ten days before the cannons can be cast.

It has been ten days since the news of the barbarians going south, and it is estimated that the first cannon will be produced in a month.

At this time, it is estimated that it is only about five months before the barbarians go south, and this is only his guess.

If the barbarians went south ahead of schedule, he would be really struggling.

Because of this, he didn't dare to take time off during this period of time, and he didn't dare to delay after finishing his work. When he returned to the palace at night, he was thinking about how to granulate the gunpowder.

As we all know, the greater the power of gunpowder, the greater the power of this artillery.

Today, the ratio of gunpowder in the Great Yu Kingdom is not very accurate in all aspects, but gunpowder is no longer a secret.

The materials for the production of gunpowder are also very easy to obtain.

After returning from the equipment department and having dinner, Xiao Ming called Lu Tong over.

This gunpowder is a chemical matter, and naturally it must be handed over to Lu Tong. Luluo and Aster also come to fight. The five people are in the side hall of the palace, and lanterns are lit around them.

In front of Xiao Ming was charcoal, saltpeter, sulfur, and a small scale. While weighing the three things, he instructed Lu Channel: Crush these three things into powder, be careful, it will fry. .

Lu Tong's face turned pale, and his hands shook for a while. Since he learned chemistry from Xiao Ming, he realized that nothing in this chemistry research can kill people.

Now Xiao Ming asked him to engage in such a powerful thing as gunpowder, which put him under a lot of pressure.

However, when he thought of the barbarians going south, he gritted his teeth. This was the hatred of the country and the family. In order to destroy the barbarians, not to mention the manufacture of gunpowder, even if he ate it raw, he also ate it.

Looking at Lu Tong gritting his teeth and looking like he couldn't get through with the gunpowder material, Xiao Ming was scared. He said, Be gentle. The finer the powder, the better. Don't use too much force. You won't be able to kill this king.

PS: There are two chapters first, and there are four more chapters in the evening.