Traveling through Great Qin: Father Qin Shihuang!

Others believed that the main problem of the Tenshen Gun should be the gunpowder. If the gunpowder of the Tenshen Gun was replaced with the same bullet as the Xuanniao No. [-], it would be safer.

However, the problem is that the biggest difference between the Tianshen Gun and the Xuanniao No. [-] lies in the different firing methods.

If the gunpowder of the Celestial Gun is replaced with bullets, then the manufacturing process of the Celestial Gun must be modified. In this way, wouldn't it be equivalent to recreating the Xuanniao No. [-]?
It was precisely because the two sides insisted on their own opinions and argued endlessly with each other that they quarreled here.

"My lord, how should you improve the evaluation?"

Shen Kuo, the head of the Ordnance Department, stepped forward and asked.

Zhao Che took out the blueprint of the god gun at the beginning, in fact, the conditions in all aspects have basically reached the upper limit.

But since Shen Kuo asked, Zhao Che would naturally not be stingy in guiding him.

Immediately, Zhao Che took Shen Kuo's remodeled Celestial Gun and gunpowder and said.

"Actually, what you said makes sense. The power and safety of the Celestial Gun are related to the casting material and gunpowder formula of the Celestial Gun. Therefore, if you want to increase the power of the Celestial Gun, you must work together from both aspects!"

"Two sides to start together? It's not like we haven't thought about it, but if that happens, wouldn't the cost increase a lot?"

Shen Kuo frowned. The reason why they were arguing endlessly was mainly because of the cost issue. If we want to control the cost of the Celestial Gun, we can only mainly modify one aspect of it.

"The cost is not as high as you imagined, and the casting process of the Celestial Gun has been determined, so there is no need to make too many changes. In terms of material, it only needs to upgrade the original material!"

"As for the gunpowder, you don't have to think about casting it into bullets. In that case, you have to improve the manufacturing process of the Tianshen Gun. It would be more convenient to directly make the Xuanniao No. [-]."

"The problem with gunpowder now is that the first one is not powerful enough, and the second one is troublesome to load. In fact, this is also easy to solve. First, the gunpowder is granulated and then repacked!"

……

Zhao Che pointed out the problem in a few words and gave a solution.

It is easy to understand the gunpowder packaging, that is, wrap each gunpowder needed in oiled paper, so that it saves the time to control the dosage when using it.

As long as an appropriate amount can be found, the chamber will not be exploded due to too much gunpowder, and the power will not be insufficient due to too little gunpowder.

But the gunpowder was granulated, which made people a little confused. For a while, they didn't understand what Zhao Che meant.

"My lord, how exactly is the gunpowder granulation you mentioned?"

Shen Kuo asked curiously.

The gunpowder used in the Tenjin Gun is generally a powdered gunpowder made by mixing the powder of saltpetre, sulfur and charcoal in a certain proportion.

However, powdered gunpowder obviously has great defects. The gunpowder made in this way can only be regarded as the most basic, and it is not easy to store and transport.

At the beginning, Zhao Che only took out the blueprints for making the Celestial Gun and the method of making the gunpowder. Later, after making the Xuanniao No. [-], he naturally lost his attention to the Celestial Gun.

The powdered gunpowder has been used in this way. In order to ensure the power of the gunpowder, the powdered gunpowder must be kept dry.

However, the density of the various components in gunpowder is different, and dry powdered gunpowder will be stratified due to bumps during transportation.

In this way, the power of gunpowder will naturally be greatly weakened, and even directly lose the characteristics of gunpowder.

Therefore, the gunpowder transported in the past must be taken out and mixed before the war can be used again.

But for things like mixing gunpowder, if it is in ordinary warfare, you have time to operate it. If you encounter urgent battles such as encounters and raids, there is no time for you to slowly mix gunpowder.

Therefore, in order to increase the power of gunpowder and make it more stable, granulation is obviously a necessary step.

Gunpowder granulation is not only easy to preserve, but also more powerful.

The first is that granulated gunpowder does not need to be remixed before taking it, after all, the ratio of each gunpowder particle is stable.

Secondly, granulated gunpowder is not easily affected by moisture, and the storage time is longer and the storage conditions are simpler.

The last and most important point is that when the granulated gunpowder is loaded, because they are all round particles, there will be some gaps between each gunpowder to facilitate the circulation of oxygen and play a combustion-supporting role. It is also more even and smooth.

At the same time, granulated gunpowder can also greatly increase the use efficiency of gunpowder. One catty of granulated gunpowder is as powerful as three catties of powdered gunpowder.

In this way, the cost of gunpowder can also be reduced, and the reduced cost can be used to upgrade the casting materials of the Celestial Gun.

The production process of gunpowder granulation is also very simple. The most simple and crude method is to directly sieve the paste, that is, filter the semi-dry gunpowder directly through a fine mesh sieve, and wait until the gunpowder is completely dry. Naturally, it becomes small particles one by one.

"Bring a copy of gunpowder here, I'll show you how to operate it, and then compare it with the power of powdered gunpowder later!"

It is obviously impossible to explain the truth of science in just a few words, so Zhao Che plans to practice it for Shen Kuo and the others himself!
After hearing Zhao Che's order, someone soon brought two gunpowder of similar weight.

Zhao Che did it himself, wet one of them, and then found a mesh sieve, sifted the paste black powder through the mesh into small particles one by one, the next step is to dry the powder before using it up.

In order to find out the gap between the two as soon as possible, Zhao Che directly carried out manual air-drying, and after more than half an hour, a piece of granular gunpowder appeared in front of everyone.

"Go, go to the test site and see the difference between granular gunpowder and powdered gunpowder!"

Zhao Che gave an order, and everyone hurriedly took two identical celestial guns and headed to the test site.

"Try powdered gunpowder first!"

In order to test the difference in power between powdered gunpowder and granulated gunpowder to the greatest extent, Zhao Che directly loaded the powdered gunpowder with a precision instrument.

But in the battlefield, it is obviously impossible to do this. Even the gunpowder packaged may not be guaranteed to be the same every time, so the test of powdered gunpowder is a trick.

Soon, the gunpowder selected according to the ratio of maximum power was loaded into the Celestial Gun.

After igniting, a burst of flame burst out from the muzzle of the Tianshen gun, hitting the target in the distance.

"This amount of gunpowder is about ten times, continue to test!"

Zhao Che did not stop testing at this point, but continued to use up all the powdered gunpowder.

"Next, we'll test granulated gunpowder!"