Chapter 1459： Cuba made rubber

For revolvers, the firearm itself is extremely difficult. After all, Marin was an army fan when he was a kid. He played badly and smashed a lot of guns and was very familiar with its structure. But the biggest problem is the bottom fire. Marin doesn't know how to make it.

This is not to say how difficult the primer technology is, but that these technologies are obscure on the later China Network and are not allowed to be discussed. Therefore, even if Marin has visited many forums, he does not understand how to get the bottom line. Even Marin's previous life saw a hand-written novel called Lao Niu's Biaojie. In two chapters, he directly received 4O4 because he introduced the manufacturing technology of smokeless powder. In such an environment, Marin cannot love weapons even if he loves weapons. So, it doesn't matter what revolver or AK it is. He can make a Minnie rifle at most, which is already the limit. The one-shot bullets used to describe the rifling at the moment are considered black technology.

Of course, Marin also knew that the early fire was thunder mercury. However, he dared not study the stuff. The primer component is very sensitive, and it explodes much more violently than ordinary gunpowder. A little bit can send people to the west. He dared not study it himself, nor did he dare to let the only scientist Da Vinci study it. After all, this is desperate. Can only wait for these gangs of primary schools to grow up, there are chemical talents. Then, let them study. It ’s best to study it, and nothing if it does n’t. In short, "I am lucky, I am lost" ...

And our Da Vinci gangster is currently refitting the steam engine. After Marin came up with the idea of ​​using soft elephant skin as a gas engine gasket, the performance of the steam engine has been greatly improved.

Don't underestimate the role of the washer, this gadget seems small, but it actually works great. To give a simple example, during the Franco-Prussian War, Prussia used a rear-mounted Krupp rifled steel cannon to win the French army. At that time, the French military's front-loaded Napoleon 12-pound smoothbore gun was not old-fashioned, but because it did not solve the problem of the gas lock of the breech gun. Because the gunpowder gas when the artillery fires is particularly powerful. If the rear door of the rear gun is not properly closed, the leaked gunpowder gas can directly kill the artillery. The French have never solved this problem, so they can only continue to use old guns during the war. The Krupp company simply used a copper washer to solve this problem, so that the Krupp steel gun became the protagonist of the Franco-Prussian War, which also led to the establishment of the German Empire. If the French also had air lock washer technology, Prussia certainly could not win the French so readily. Even if you can win, it is a terrible victory. Even, it is possible to lose. After all, the French Chapelle rifle was much more advanced than the Prussian Dresser rifle ...

Historically, it was not until the late 19th century that steam engines used rubber as a gas-tight gasket. Previously, ordinary leather such as cowhide was used, and the effect was not very good. After all, Marin has been soaked on the Internet, and there are many sources of information. I know that elephant skin is soft and thick, and it is an excellent material for gas-locking gaskets. Fortunately, a team happened to hunt the rhinoceros to make rhinoceros armor in Senegal, and let them hunt the elephant together. By the way, I can get some ivory back.

As for what animal protection is, there are so many animals in Africa now that there is no need for protection. Is it necessary to protect things walking around? These animals were killed for protection in later generations because of the large-scale introduction of modern and modern shotguns in Africa, and the efficiency of hunting has been greatly improved.

Like the American bison, there were tens of millions of them in the early days, and the Indians could never kill them. Later, in the late 19th century, after the introduction of modern post-installed rifles, it was quickly extinct in decades.

Similarly, the sika deer on the island of Taiwan was killed by modern shotguns in the period from the late 19th century to the early 20th century.

Therefore, there is no need to worry about the elephant being killed. After all, the modern rifle has not been invented yet. But Marin must have told Caesar before his death. If elephants and rhinos are scarce in the future, pay attention to protection.

Moreover, Marin now uses elephant skin as a gas-locking gasket, which is only temporary. Because, Marin has begun to plant rubber in the American colonies. Once the mass production of rubber starts, Marin does not need to send people to slaughter elephants to obtain elephant skins to be used as air-tight gaskets ...

...

Marin had just thought about the rubber thing, and it was probably that the nagging was working, and the news came from the port there-the Cuban colony in the Americas began to tap rubber and sent the first batch of rubber products back ...

Calculating the time, Marin had ordered the planting of rubber trees in Cuba for several years. Now, it is indeed time to cut the glue.

But after getting the rubber products, Marin instantly turned black-Nima, what is it? Why is it still the first-class rubber ball? I'm so old, I still have to play ball? In other words, the first batch of rubber was actually raw rubber ...

Marin is mad-this is a waste of precious resources!

However, he does not want to think about it. Has he mentioned the technology of rubber curing (that is, vulcanization) before? Moreover, even Marin, it is probably known that adding sulfur to the rubber during the latex molding can make the rubber vulcanized and become a cooked rubber with practical value. But he didn't know how to cure it ...

Therefore, he really blamed the workers who cut rubber in Cuba. People are responsible for collecting the latex from the tree, as for how to process, they will not ...

Marin wanted practical cooked rubber and had to send someone to the Cuban rubber plantation to study how to vulcanize rubber. Moreover, it is better to be a craftsman with a research spirit ...

So ~ www.novelhall.com ~ Marin selected a group of master craftsmen of nitro leather and sent them to the rubber plantation in Cuba. The next time they tap the rubber, they will be divided into several groups to test how to vulcanize the rubber. And, find out what kind of ratio to use to vulcanize the rubber.

Marin's requirement is that vulcanized vulcanized rubber must be tough, elastic and have a certain hardness. In addition, it must have a certain corrosion resistance ...

In addition, Marin also asked those craftsmen to incidentally study how to add carbon black powder to rubber technology. This is the legendary carbon black tire technology. It is said that this technology, which appeared in the early 20th century, can greatly improve the wear resistance of rubber tires.

The most important application of rubber is probably tires. Therefore, adding carbon black powder to vulcanized rubber is also an important research direction. If the research is successful, it will directly enter the level of the early 20th century.

As for the more complicated steel cord technology, Marin did not allow research. It is not that the research is impossible, but the cost of the high-performance steel wire is too high. Moreover, in the era when there was no heavy vehicle, the wheel tires of the wagon did not need high-grade steel cord tires. Carbon black can be used to reinforce rubber, even if it is top-fitted. After all, according to tests in the early twentieth century, tires made of ordinary vulcanized natural rubber were almost polished after driving 6,000 kilometers. And carbon black reinforced rubber, driving 100,000 kilometers is no problem.

Of course, it's not just tire technology. Marin also intends to use rubber to study life jackets and rubber boats. After all, with the increase of ships in the North Sea countries, the safety of maritime navigation should also be taken seriously. If the sailors are equipped with life jackets and rubber boats, even if the ship hits the reef and sinks, the sailors lean on the life jackets and rubber boats, and have the opportunity to survive on the sea to support the rescue.

Therefore, the role of rubber is quite big, and we must pay attention to it ...