Solving the problem of the most important source of iron ore, Xia Nan and Lin Weiye both let go of a big stone in their hearts. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 infoWith a stable source of iron ore, it is possible to try to cast larger artillery, and there is a problem that needs to be solved urgently - bayonets!

As early as when the Qionghai rifle was officially delivered to the escort team, Lin Weiye had already figured out how to make the bayonet, but at that time, the limited pig iron resources and production capacity had to solve the problem of whether the rifle existed first, and now the pig iron is no longer the bottleneck, and the rifle is about to complete the installation of 300 people, plus the new blacksmith can alleviate the shortage of manpower, and he can free his hands to go to the bayonet project. Lin Weiye plans to make a trial sample first, and then mass produce it after success.

The bayonet is not a simple job, the length is only about 0.5 meters, but it must ensure the strength and toughness in the process of repeated assassination, too hard and easy to break, too soft and easy to deform. The difficulty of making a bayonet is no easier than that of a good sword, and the best sword made of hundreds of steels in these years is not only very costly, but also time-consuming and labor-intensive.

What Lin Weiye has to do is to achieve rapid and large-scale production of bayonets, while controlling costs. The method he used was the carburizing process that was still used until modern times.

Carburizing is a common heat treatment process for metal materials, which can make the surface of the carburized workpiece obtain high hardness and improve its wear resistance. The specific method is to put the workpiece into the furnace with carburizing medium, heat it to 900-950 degrees, and after holding it for a sufficient time, the activated carbon atoms decomposed in the carburizing medium penetrate into the surface of the steel part, so as to obtain a metal workpiece with high carbon on the surface and the core still maintains the original composition. In fact, this technology is still used in modern times, which is the so-called "steel stewing method".

In this way, the surface layer of the metal workpiece has the high hardness and wear resistance of high-carbon steel, while the central part still maintains the toughness and plasticity of low-carbon steel. The bayonet made in this way is rigid enough on the outside to have an advantage when assassinating, and the toughness on the inside ensures that it will not break.

The modern carburizing process is very mature, and the carburizing medium used is also gases and liquids, such as methane, benzene, etc., which were obviously not available in 1631. Lin Weiye adopted the method of the ancients - external heating box carburizing technology.

The name sounds lofty, but in fact it means that a semi-finished bayonet made of mild steel is put into a container such as a crucible, and then covered with charcoal, tempeh, and ground soil, and heated outside the container -- charcoal and black bean sauce are used for carburizing, and soil powder is a dispersant. The advantage of this carburizing technology is that the carburizing of the workpiece is very uniform and stable, and the carbon potential is very high, and the efficiency and effect are quite good. This method is recorded in "Tiangong Kaiwu", but at that time, Song Yingxing used to make embroidery needles, and Lin Weiye used to make bayonets.

This bayonet was not the thin, flat blade of a modern bayonet, but a long, triangular cone. Considering that in the future, it will be necessary to fight often with cold weapon troops, and the thick cone is obviously stronger than the blade, and such a structure is obviously more suitable to be called a spear stab, and a bayonet is just a habit of thinking of modern people.

After making the sample, Xia Nan tested the sharpness and toughness, and it was easy to pierce through the two layers of thumb-thick boards, and then stirred up and down, left and right, and the sawdust fell one after another, but the bayonet was not deformed at all, and if it was a sword, it would inevitably break if it was stuck in the plank and folded horizontally. He took a thin iron plate, thrust it hard, and pierced it in the same way, and the bayonet was not worn, so that it would not be a problem to deal with the enemy's armor in the future.

He laughed, "Lao Lin, you really have a way, now, our team is rifle and bayonet, and we are not afraid of hand-to-hand combat." ”

Lin Weiye also has a sense of achievement, he took a rifle, the muzzle holder has been reserved for a long time, the bayonet can be easily installed and disassembled, after the bayonet is loaded, he said to Xia Nan: "The Qionghai-style rifle is loaded with a bayonet, nearly 1.9 meters, basically close to a spear, and in the future, it can be used as a spear directly, and the spearmen can be canceled, all of them are firearms soldiers, and they have both long-range strikes and hand-to-hand combat capabilities!" ”

Xia Nan looked at it and found something strange: "How is this bayonet mounted on the right side, isn't the bayonet all under the muzzle?" ”

Lin Weiye explained: "We have a front-loading smoothbore gun, which is mounted on the right side for better loading, and only in the era of rear-loading guns will it be loaded under the muzzle. ”

He stretched out his left hand and gestured at the muzzle of the gun, "You see, if it is loaded underneath, will it cut the hand when it is loaded?" ”

Xia Nan nodded: "It seems that the person who designed the bayonet for the front-loading gun has learned a bloody lesson!" Although it is awkward to install on the right side, it is practical first. ”

The prototype is successfully made, and then it can be mass-produced. Now that the problem of weapons has been basically solved, there are rifles, bayonets, and artillery, compared to the level of force in Qiongzhou Mansion, the escort team is already armed to the teeth, and Xia Nan is no longer satisfied with shrinking in a corner of Lingao.

He and Lin Weiye started from the salt field, through Lin Weiye's golden finger, take the technical flow route, and have begun to gain a firm foothold in Lingao, and the future is bright, but after all, the foundation is still shallow, and the shortcomings are obvious. The previous workers, craftsmen, and iron mines were all solved one by one, and now it is the turn of the last and most important shortcoming--grain.

In the summer, Nan thought about it, but he couldn't think of a good way, so he had to call everyone to discuss and see if they had any good suggestions.

Lin Weiye has never been interested in this kind of problem, and others are sitting here, but their minds are thinking about casting a bigger cannon at the right time.

Liu Quan's brain is more flexible, he thought about it, and said to Xia Nan: "Master, we have silver, we can buy grain ......."

Xia Nan interrupted him with annoyance and said: "In order to supply the food for the people who built the shipyard, the price of rice in Lingao County has risen, and now there are three hundred guards, three hundred native soldiers, plus more than a thousand workers and craftsmen, how much silver do you have to spend to buy grain, even if the price of rice does not rise, the cost is also very large, and the food depends on buying, which is by no means a long-term solution." At present, only the textile factories have income, the salt factories are not exported, and the arsenals, iron and steel factories, and shipyards are all burning money -- if it were not for the two windfalls from the fight against Hujiazhuang and the county seat, we would have been unable to sustain ourselves a long time ago. ”

Everyone said yes, Tan Shan added: "And the county's grain production is not much, and the grain storage is limited, even if there is silver, you can't buy so much." ”

Liu Quan continued: "Back to the master, if the local food is not enough, you can buy it in other places. However, the grain output of other states and counties in Qiongzhou is not high, and the price of rice in Guangdong is much higher than that of Qiongzhou, so it is not a good place to buy grain. The small one ran to Guangzhou several times, and heard some people say that Siam and Annam are rich in grain, and they are also three crops a year, but the output is much higher than that of Qiongzhou, and the price of rice is very low. As for the silver not making ends meet, it is not a big problem, the shipyard of the master has been built, as long as the ships are built to go to sea, whether it is to go to Japan or to the South Seas, it is the trade of gold and silver, and silver is no longer a problem. ”