Chapter 638: Cement Ball Cannonball

Although it was great to use artillery to bombard people, Marin found a problem-the 50 Francs seized from the army of the electoral country of Saxony were fitted with bronze guns, and the caliber was not uniform ...

The 50 Frang cannons, some are 2 pound guns, some are 3 pound guns, and 4 pound guns, calibers are mixed. Moreover, even with the same caliber, there are slight differences due to the casting process.

Therefore, if you use the seized Franc cannon to fight, you also need to manufacture matching ammunition. Fortunately, casting shells is not difficult, as long as there is a template shell with a high degree of fit, you can use the sand-turning method to cast the same shell. Although the shells cast in the wet sand, because of water vapor, there must be some honeycomb, but because it is a shell, not a barrel, it has no effect. Anyway, it is used to smash people. The iron ball shells have honeycombs, which are definitely harder than the human body. Smashed, it must have been finished ...

And, to Marin's surprise, according to the captured Saxon artillery-Saxon artillery, many of them are stone bombs, not iron balls. Because the current iron smelting technology in Europe is backward, most blacksmiths still use the method of directly reducing iron ore on the red charcoal fire to smelt iron. Therefore, European iron prices are still very expensive. Therefore, it is also good to replace iron ball shells with stone shells ...

"Stone shells ... it looks like it is not powerful enough, but it can't hit the wall ..." Marin muttered.

But, soon, he reacted-the infantry artillery was hitting people, not siege, not necessarily iron balls, stone bullets are definitely enough.

However, for Marin, the production of stone bombs is more troublesome than the production of iron ball shells. To produce iron ball shells, just use the model standard bomb to press out the space in the sand box divided into two halves, and then divide the two sand boxes in half, then put them together, pour molten iron from the casting hole above, and it will be cast quickly Cannonballs of the same size.

If you use stone bullets, you need to use a stonemason to polish manually. Although the stonemason can also polish the stone bomb to the same size as the iron ball shell, it is very time-consuming and not as fast as the sand casting method. Other countries use stone bombs because iron **** are too expensive, but Marin doesn't care ... He has an iron-making blast furnace, uses coke to smelt iron, and imports hematite from Luxembourg. Therefore, he does not care about the cost of iron balls. Moreover, grinding stone ball shells is too time-consuming and inefficient. Therefore, Marin still intends to mainly use iron ball shells.

However, one day, after seeing workers building cement roads in the city, Marin immediately changed his mind ...

Why? Because Marin thought of using cement to cast shells ...

Yes, cement pouring shells. Stone cannonballs are difficult to polish because they require the use of stone masonry and they take a lot of time. It is easier to use cement.

After thinking, Marin felt that two iron bowls could be made together. Then, put the cement into the iron bowl. After a while, when the cement ball can't fall apart, then separate the iron bowls on both sides and take out the cement ball to dry or dry it. Then, a cement ball shell was born ...

Infantry artillery hitting people with iron **** is indeed a waste. Anyway, hitting people, the difference between iron ball and cement ball is not very big. Moreover, how cheap is the cement ball? Pouring is very convenient, it can save a lot of money than using iron **** ...

I did it when I thought of it, and Marin immediately found the craftsman, and first casted an iron bowl divided into two halves, which was specially used for pouring cement ball shells. However, the processing of the iron bowl seems to be somewhat difficult. After all, it is iron, and the mold manufacturing is troublesome.

Later, a craftsman simply suggested that it is better to use wooden bowls ... Wooden bowls can also be used to shape cement, and it is easy to process wooden bowls. Carpenters can make fine adjustments at any time. Unlike the Iron Bowl, if the casting fails, the modification is very difficult. For wooden bowls, the carpenter can use axe chisel to knock and beat for a while, then it can be adjusted. If it doesn't work, just change to a wooden bowl, and the wood is not valuable ...

After a few days of hard work, a method of using two hemispherical wooden bowls together to fix the cannonballs poured by cement came out like this ...

As long as there is cement, it is not too simple to pour cement ball shells-pour the cement directly into the bowl, the two hemispheres force together, and squeeze out the excess cement. Then wait for an hour or two, the cement in the bowl is almost not easy to fall apart, then remove the two half of the wooden bowl, so that the cement ball is exposed to the sun or dried or air dried ... A cement ball shell is completed ...

After the cement ball dries and hardens, after testing, it is not particularly different from the stone shell. Anyway, it is properly enough to hit people. After all, if the human body and the cement ball hit each other hard, the human body must suffer. Even if the cement ball is broken, it doesn't matter. After all, the cement is not worth much, and if it's gone, get some new ones. It doesn't matter if you make a gap, get a bit of cement paste on the gap, and it can continue to be used as a cannonball after being dried. It's different, but if you are hit by a cement ball, you'll die if you die. It's useless to wear plate armor. That kind of kinetic energy, even if you don't wear plate armor, can break your bones and let you die.

Marin summoned his men and showed them this low-cost cement ball shell. Kohler, the Chancellor of the Exchequer, caught this low-cost shell at a glance. How low is the cost of cement, as Marin's confidant, Kohler is very clear. At least, it is much lower than iron **** ~ www.wuxiaspot.com ~ because, to make iron balls, hematite needs to be imported from Luxembourg, and then smelted into molten iron through the equipment and craftsmen of the steel plant. Finally, the craftsmen who cast through the sand, cast one by one. A series of costs are much higher than cement shells.

What about cement ball shells? Just find a construction worker, mix the cement, and then take out the wooden bowl of the mold. No craftsmanship is required. Ordinary construction workers can produce this type of shell, which is very simple.

Although Marin said, shelling the city walls and the artillery battle at sea still requires the use of iron balls. However, changing the infantry artillery to cement ball can definitely save a lot of money. For Chancellor Kohler, there is nothing more important than saving money.

As for the problem of the cement ball shells bumping and bumping easily, just like Marlin had planned before-bring a few construction workers with the army, and then bring a little cement yellow sand. If there is a gap in the recovered cement ball shell, stir some cement and apply it to the gap of the shell, let it dry, blow it, and a new infantry shell is released ...

Marin was proud of this original invention of his own. It seems that there has not been a cement shell in history ...

However, this is no wonder. Because, when the cement appeared (in the 19th century), the solid shells had been eliminated, and it was already the world of flowering shells. Therefore, no one thought of using cement to pour shells. After all, cement is at most a solid bullet like a stone ball cannonball, not a flower bullet.

Therefore, the cement ball shells made by Marin are really original. Moreover, because there is no cement in other countries, if you want a cottage, you have to master the cement technology first ...