Chapter 606: Gunmetal and Navy Copper

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Although Henry VII fooled the past in front of the Roman investigation team, his enemies did not intend to let it go. Soon, Henry VII used the fake bones of Edward V and Duke of York to fool the Roman investigative mission and was promoted by interested people. The most unlucky thing is that it was even spotted on the spot.

Although Henry VII's claims confuse the Roman investigation team, Henry VII's opponents, while sending people to spread the news, slammed it-this is not a misunderstanding, but Henry VII deliberately falsified. Because the matter of Richard III ’s killing of the king does not exist at all ...

As a traverser who is well versed in the power of rumors, Marin knows how easy it is to spread a rumor of three points and seven points in this era.

Therefore, Marin directly sent representatives of the North Sea Chamber of Commerce in the UK to quickly spread rumors in England that His Majesty Henry VII could not get the bodies of Edward V and Richard, Duke of York. Come pretend to be the bones of Edward V and Richard, Duke of York. It can be seen that the killing of Richard III is clearly a rumor. But Henry VII killed the king, but everyone is aware of it ...

In fact, this can not be regarded as rumors, most of them are speculated facts. Even Marin made people publicize in England that Richard III's reforms were good for ordinary British people, but harmed the interests of the aristocracy. Therefore, Henry VII colluded with these nobles who had suffered damage, and a rebellion broke out ...

This statement quickly spread among the folks in England and caused an uproar. Earlier, after Henry VII, in order to show his orthodoxy, he desperately discredited Richard III, and discredited Richard III as a tyrant without evil. When Henry VII started to defeat Richard III, it was in line with the instructions of the emperor ... Those nobles who rebelled Richard III to Henry VII were also portrayed as the wise characters of "abandoning the dark and casting the light" ...

However, this seemingly rumored rumor shattered the shame of Henry VII and his supporters ...

Henry VII was angrily angry, ordered a severe tracing of who spread this "rumor", and vowed to find these people to be hanged in public. It is a pity that the spies under Marin are not so cautious? Therefore, Henry VII did not catch any useful people, but caught a large number of ordinary people who secretly spread "rumors".

Henry VII was annoyed by the Roman investigative team at this time. Hearing such "rumors", he was naturally angry. Then, some unlucky ordinary people were hanged on the execution ground ...

The intelligence personnel of Marin took the opportunity to spread the news-"The King Killer" became angry and angry, because the secret was broken by humanity, so the response was so big ...

Then, although the news from the private sector seems to be overwhelming, in private, many people believe this statement ...

...

Of course, neither is important. Even if ordinary people know some so-called insider, it will not have much impact on the overall situation. Marin's real purpose is to build momentum for Edward.

After all, Marin wanted to lead tens of thousands of troops to help Edward defeat Henry VII and win the whole of England. If after defeating England, it turned out that no one supported Edward, that would be embarrassing.

In this era, although the love of the people is not important, it must be there. After all, there are people who love it, and when Edward ascended the throne, did he have a bright face? If everyone shouted and beaten, it would be considered to seize the throne, and then face the rebellion in succession ...

...

A batch of copper ingots were sent from Sweden. Exactly, Marin now has tin ingots and zinc ingots. So, Marin suddenly remembered the legendary gunmetal specially used for casting guns, and the navy copper specially used to wrap part of the waterline against seawater corrosion ...

The so-called gunmetal is a kind of bronze. Of course, not the simplest copper-tin alloy bronze, but also need to add a part of zinc. Examples are-88% copper, 10% tin and 2% zinc.

This match is the best match after repeated verification. Marin is not a metallurgical major, and it is not clear why gunmetal should be used for this. However, he knew that it was used, why should he think so much?

Previously, Marin cast copper guns, and could only use copper-tin alloy bronze, which was impossible. Because, there was no zinc in his hand. Now that zinc ingots are made, Marin will naturally have to use standard gunmetal to cast guns. Although I do n’t know why I need to use this configuration, it was repeatedly certified by future generations. I can get gunmetal according to this configuration.

The reason for gunmetal is because Marin wanted to cast 12-pound Napoleon guns in batches. The popular 6-pound artillery of the Marin Army can only penetrate half of the company column at a distance of 200 yards. The 12-pound Napoleon gun can penetrate the entire company column at a distance of 600 yards, and it is very easy.

Moreover, copper cannon casting can use the iron mold casting method. The casting speed is very fast. A casting group can cast several doors a day. Cast iron guns, because there are many problems with iron, it is best not to cast iron molds when casting guns. However, if the clay mold is used for casting, it takes only two to three months to dry the clay mold, which is very inefficient.

Although it is said that Marin can make steel now, Marin does not intend to promote the steel gun. Why? This is setting a high threshold for other countries ...

The 12-pound Napoleon gun is the most powerful infantry gun known by Marin. It takes 1227 pounds of gunmetal to build a 12-pound Napoleon gun. If you cast 100, it would cost 122,700 pounds of gunmetal. At the current copper price in Europe, a 100 12-pound Napoleon cannon was cast, enough for most nobles to go bankrupt.

Therefore, when Marin promotes copper guns, he can use the die-casting method to mass-produce equipment quickly and effortlessly, or he can create cost barriers for other countries. At least, it can't afford a lot of equipment ...

And Marin will invade Japan in the future. Japan not only has abundant gold and silver, but also extremely rich copper mines. As long as you reach into Japan, you do n’t have to worry about the source of the cannon material ...

But the problem is that when he really came to gunmetal, Marin encountered a real problem-zinc vapor is easy to evaporate ...

The melting point of copper is 1083 degrees, and zinc can be vaporized to steam at 907 degrees. Therefore, it is simply not practical to melt copper ingots and zinc ingots together. When heated, the copper has not melted, and zinc has become zinc vapor ...

In desperation, Marin had to use a stupid method-first burn the zinc ingot to convert it to zinc oxide, and then heat the copper block, charcoal and zinc oxide together. Charcoal and zinc oxide undergo a reduction reaction to produce zinc, but it is incorporated into the copper block.

Then, the copper block containing zinc was melted again and stirred evenly to obtain a copper-zinc alloy ...

As for tin, it can be added when it melts. Because the melting point of tin is low, but the boiling point (vaporization temperature) is as high as 2260 degrees ~ www.wuxiaspot.com ~ When the copper-zinc alloy is melted, add tin water directly to the inside and stir evenly. In this way, gunmetal produced ...

As for navy copper, it is another match. It is composed of 70% copper, 29% zinc and 1% tin. Because of the high zinc content and tin content, it belongs to brass. The gunmetal tin content is higher, so it belongs to bronze.

The characteristics of navy copper are mainly strong corrosion resistance, especially the resistance to seawater corrosion. Therefore, this kind of brass is the most suitable for manufacturing the copper skin that covers the lower part of the wooden boat's waterline. This copper skin can not be changed for many years. Because of its strong resistance to seawater corrosion.

Even in later generations, naval copper is a widely used copper alloy, which can be used in the manufacture of propellers for ships, and can also be used to manufacture copper pipes and copper valves that pass high-temperature steam. The steam engine that Marin is engaged in now can use naval copper in large quantities to manufacture pipes and valves that pass steam to enhance the service life. Unlike iron, it is easily oxidized under the impact of high-temperature water vapor ...

In short, with zinc, Marin can manufacture gunmetal and navy copper on a large scale. With gunmetal, it can be used to make high-quality bronze guns; The important components such as copper pipes and valves required by the steam engine ...

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