As the best level arsenal on the mainland, many kingdoms will entrust the Forging Holy Land to develop and produce some equipment.

This time, the Rybach Kingdom, located in the southeast of the Bibrach Kingdom and on the north bank of the Great River, commissioned the Forging Holy Land to develop and produce a new type of velociraptor armor.

Inside the workshop, Charles saw a 1:1 model of a velociraptor

Velociraptor looked much like a Triceratops from the late Cretaceous period without horns. It is more than three meters long, with a back height of nearly two meters, a head that accounts for nearly one-third of its length, a tall bone shield behind its head, and a stubby tail behind it, with a total length of nearly five meters. It has short, wide feet and is good at running with weights.

"Although it usually likes to graze slowly on the grass like sheep, it doesn't seem to be worthy of the name of the velociraptor at all. Halkala was introducing the wurm to Charles, "but it was the most used wurm by the dragoons on the ground." And its name comes from their performance on the battlefield. ”

Charles nodded after listening, and the dragoons rode into the battlefield quickly on such a guy who weighed several tons after being dressed in armor, which was simply a crushing situation for the infantry.

On the battlefield, these dragoons have also become the focus of attention of various long-range strike forces. As soon as they appear, cover the fire for one round first.

Now there is a problem with the armor of the velociraptor equipped with the Velociraptor commissioned by the Kingdom of Rybach.

Party A will naturally put forward a variety of needs to Party B, ranging from colorful black to changing the main color of the APP according to the user's mobile phone case. The boss of Party A has a wide range of ideas, which is recognized by the world.

This time, the core requirements of the Rybach Kingdom for armor were "lighter, harder, and cheaper".

Sometimes the simpler the problem, the more difficult it is.

Now the dwarves are going to die.

The world is constantly in the midst of a battle, and various war-related technologies have developed by leaps and bounds, but it has also reached a bottleneck.

It's not difficult to be lighter and harder than the previous armor, just pile it up with magic materials. But in this way, the cost goes up.

The previous time-travelers brought the knowledge of chemistry, and the people in this world also had the concept of elements, and also knew some knowledge of alloys.

However, not all metals are as easy to refine as gold, silver, copper, and iron.

For example, manganese and tungsten, which can improve the strength of steel, require electrolysis technology for large-scale production, and tungsten powder can be obtained through a series of physical and chemical reactions.

In this underproductive world, the large-scale production of these two metals is extremely difficult and can only be produced on a small scale using methods similar to laboratory preparation. This makes them not much less expensive than those magic metals.

The dwarves, who could only work on ordinary steel materials, were at a loss, and even brought in foreign help.

It's just that Erbach, who was invited in the past few days, and Wolff, who had traveled and passed by before, failed to come up with any good solutions.

Now in the workshop, not far from the gate, there is a long table on which are placed several numbered steel plates. A blackboard stood at one side of the table, and Bryant and Erbach occasionally discussed it in technical terms while writing and drawing on it.

The students brought in by Bryant and Erbach would occasionally ask a question or two, but they mostly listened.

Charles listened to a heated discussion between Bryant and Erbach in front of a few samples produced in the workshop.

After listening for more than an hour, Charles also heard some doorways from it.

Velociraptors were very powerful, and the armor prepared for them was generally 5 mm thick. In extreme cases, they can put on another layer of armor before the battle, but then they will only have the power to fight.

The armor used by the Velociraptor in the Rebach Kingdom is made of tempered high-carbon steel, and if you want to increase the hardness, it will inevitably make the armor lose its toughness and become brittle.

Now the research direction of the two professionals is whether it is possible to use alloy steel to improve the performance of armor without significantly increasing the cost.

According to Erbach, the institute seems to have discovered a way to smelt ferromanganese from soft manganese ore and iron ore, and suggested that Bryant use ferromanganese to produce manganese steel.

Of course, Charles, who didn't know that the metal called "Mangnis" that the two bigwigs said was manganese, was confused in this paragraph. Many of the metals here are nomenclatically different from those of his previous life, and even if he knows how to get Harvey's armor, he doesn't know what to say about nickel, what the physical and chemical properties are.

And he doesn't want to reveal his identity as a traverser, he wants to make a fortune in the rear.

His grandfather is a linguist, and there is no trace of metallurgy and materials science in the family, so he can't pretend that his grandfather, a metallurgical expert, taught him like Feng Mouchen in the Qi Orange Universe, or Lin Mouhua used the excuse that he met an old professor near the station when he was in the army.

Fake Elizabeth? Just kidding, how could such a thing that could be read a paper be hidden from her. Her identity is exposed, she has a seventy percent chance of killing herself, Halkala has a twenty percent chance, and the remaining one percent is divided equally between coriander and red leaves. The reasons for this are beyond the details of the book.

Therefore, Charles can't choose those highly professional knowledge to play the necessary pretending routines of the traverser.

The current Charles wants to do things out of a playful mentality, and secondly, he wants to connect with this strange style of blacksmithing, which requires him to come up with something that may not be useful, but can make the eyes of professionals shine.

Charles's knowledge reserve does not have many reserves of armor, metallurgy, and materials science, so he has limited options and can only find references from other places.

The body armor was first excluded, firstly, he did not know what materials could achieve the Kevlar effect, secondly, the weapons that the two worlds needed to face were different, and most importantly, this method was not metallic enough.

All kinds of alloy steels are also excluded, and the knowledge of materials science is traceable, you can accidentally put the wrong ore to make stainless steel, but you can't pat your head out of thin air to come up with stainless steel.

Harvey armor is also excluded, this thing is used to make armor for battleships, and the thinnest Harvey armor made by the United States in the late World War II is also a few centimeters thick.

The reason for the exclusion of composite armor is similar, it cannot be made thin and light enough at the current level.

Finally, an armor that once made a name for itself in Charles's world......

"The idea of this thing seems to be something to learn from. Charles thought, "And it's mature enough in terms of craftsmanship." It seems that there is a misunderstanding in the thinking of the dwarves, and this is not thought of. ”

The discussion between the two bigwigs and the technicians and workers of the workshop has come to an end for the time being, and everyone has now entered the time for tea breaks.

Bryant noticed Charles' thoughtful look, so he asked, "Charles, do you have any ideas?"

The people around him smiled and didn't speak, and they thought the same thing as Bryant, and took it as a pleasure.

"The idea is that there is a point. Charles said, imitating his grandfather's movements and tone.

Now Bryant and Erbach, two old friends of Grandpa Charles, are happy.

Erbach pointed to the blackboard and said to Charles, "Then you go and write your thoughts." ”

"Oh well. Charles said, "Don't laugh at me if I'm wrong." ”

Naturally, no one would laugh at an eight-year-old child on academic issues, and none of them had been in school longer than Charles. And their study time is not as good as Halkala, who is elegantly drinking tea in front of the backdrop.

Charles walked over to the blackboard, where he drew a ▱ and then added a few strokes to form a three-dimensional drawing of a steel plate. Then he drew a net parallel to the plate underneath it. Then two steel plates and a piece of net were repeatedly drawn under the net, and the structure of steel plate-net-steel plate-net-steel plate was repeated. At the bottom, he drew a cross-sectional drawing of the "⌸" shape.

At the end, he drew a small flower on the side, and then focused on the soil underneath it and the roots inside the soil.

Charles turned his head after finishing the drawing, and found that the expressions on the faces of the people at the long table were different from when they were relaxing with tea just now, and they had changed back to the way they had just discussed the problem.

"Tell us what you think. Bryant said to Charles, "Don't worry, no one here is going to plagiarize your ideas." ”

Charles cleared his throat and pointed to the root system under the small flower he drew and said, "Everyone knows that when we pull out weeds and other plants, their roots will come out with the surrounding soil. This is because these roots hold firmly on the soil. ”

"I just heard from the two masters that if you make steel harder, it will become brittle due to the reduction of toughness, and it will cause cracking when subjected to impact. ”

"At this time, I thought about whether the steel plate could be made with a combination of hardness and toughness by adding high-toughness metal nets similar to plant roots, which could be tightly combined with the steel plate to help the steel plate bear the cracking force. ”

Charles had just thought of the legendary depleted uranium armor, which was made of a mesh made of depleted uranium alloy embedded in steel to make armor blocks.

Then he thought of reinforced concrete. Concrete is hard but brittle, and it is compressive but not tensile resistant. If there is pressure acting on a beam made of pure concrete, the compression area above the concrete beam is fine, but the tension area at the bottom will crack. Therefore, steel bars with higher toughness than concrete are added to the concrete to withstand the tensile force under the concrete beam. Extending from beams to slabs is a common reinforced concrete floor slab in buildings. (Interested readers can look for "Mechanics of Materials" and "Structural Mechanics" to study)

In Charles's eyes, the vertical armor should be about the same as the horizontal reinforced concrete floor slab for people to step on, so he proposed an armor plate structure similar to a reinforced concrete floor slab.

At the same time, Charles thought it was strange that concrete was used here, so the people who taught them to use concrete should also teach them to use steel bar. So why didn't the dwarves think of this method? Charles didn't think he had the aura of reducing intelligence, and there was probably something hidden in this.

"The hammer is on it!" Bryant suddenly jumped up from his chair and yelled at the owner of the workshop, "Ask the Pope to come over!"