As the best arsenal in the Great Six, many kingdoms commissioned the forging of the holy land to develop and produce some equipment.

This time, the Kingdom of Rebach, located in the southeast of the Biberach Kingdom and entrenched on the north bank of the river, commissioned the forging of the holy land to produce a new type of velociraptor armor.

In the workshop, Charles saw a 1:1 velociraptor model.

The velociraptor looks very much like the late Cretaceous triceratops without long horns. It is more than three meters long and has a head that accounts for nearly one-third of its length. It has a high bone shield behind its head and a thick and short tail behind it, with a total length of nearly five meters. It has short and wide feet and is good at running around with weights.

"Although it likes sheep to eat grass slowly on the grass, it doesn't seem to be worthy of the name of the velociraptor at all." Halkara introduced this sub-dragon to Charles, "but it is the sub-dragon that the most used by the dragoons on the ground. Its name comes from their performance on the battlefield."

After hearing this, Charles nodded. The Dragoon was riding a guy weighing several tons in armor and rushed into the battlefield. It was a situation of crushing all the way for the infantry.

On the battlefield, these dragoons have also become the key targets of various long-range strike forces to take care of. As long as they appear, they will first cover the firepower for a round.

Now there is a problem with the armor of the Velociraptor commissioned by the Kingdom of Rebach.

As for Party A, it will naturally put forward various needs to Party B, from colorful black to changing the main color of the app based on the user's mobile phone case. It is recognized by the world that the boss of Party A has a wide range of ideas.

This time, the core requirement of the Kingdom of Rebach for armor is "lighter, harder, and cheaper".

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

This is the dwarves' life.

The world has been in battle, and various war-related technologies have been developed, but it has also reached a bottleneck stage.

It is lighter and harder than before, just pile up with magic materials. But in this way, the cost will increase.

The past time travelers brought knowledge of chemistry, 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 extract as gold, silver, copper and iron.

For example, manganese and tungsten that can increase the strength of steel, the former requires electrolytic technology for large-scale production, while the latter can obtain tungsten powder through a series of physical and chemical reactions.

In this world of insufficient productivity, the production of these two metals is extremely difficult to produce on a small scale using similar lab preparation methods. This makes them no less expensive than those magical metals.

The dwarves who could only work on ordinary steel materials were at a loss and even invited foreign aid to help.

However, Elbach, who was invited in the past few days, and Wolf, who had been traveling by before, were unable to come up with any good solutions.

Now there is a long table not far from the door of the workshop, with a few numbered steel plates on it. A blackboard is standing next to the table. Bryant and Elbach occasionally discuss in professional terms while writing and drawing on the blackboard.

During this period, the students brought by Bryant and Elbach would occasionally ask one or two questions, but most of them listened to them.

Charles was listening to the heated discussion in front of several samples produced by Bryant and Elbach in the workshop.

After listening for more than an hour, Charles also learned some tricks from it.

The velociraptors are very powerful, and the armor prepared for them is generally 5 mm thick. In extreme cases, they can put on another layer of armor before the war, but in this way they will only have the power of a battle.

The armor used by the velociraptors of the Rebach Kingdom is made of high-carbon steel that has been tempered. If you want to increase the hardness, it will inevitably cause the armor to lose its toughness and become brittle.

The research direction of the two professionals is whether alloy steel can be used to improve the performance of armor without significantly increasing costs.

According to Elbach, their college seems to have already developed methods to smelter manganese ore with soft manganese ore, and it is also recommended that Bryant use ferromanganese to produce manganese steel.

Of course, I don’t know that the metal called "Mangnis" that the two bigwigs said was manganese. Charles was confused when he heard this paragraph. Many of the nouns here are different from those in his previous life. Even if he knew how to make Harvey armor, he wouldn’t know what to say about nickel, and what are the physical and chemical properties.

Moreover, he didn't want to reveal his identity as a time traveler, he wanted to make a fortune in the back.

His grandfather is a linguist, and there is no background in metallurgy and materials in the family. He cannot pretend to be the metallurgical expert grandfather taught him like Feng Mouchen in the Qicheng Universe, or Lin Mouhua used the excuse of meeting an old professor near the station while in the army.

Just dictate Elizabeth? Just kidding, how could this kind of thing that can be used to brush papers be hidden from her? Her identity was exposed, and she had 70% of her chances of killing herself, and Halkara had 20% chances, and the remaining 10% was divided equally by coriander and red leaves. The reason was not detailed in the book.

Therefore, Charles cannot choose those highly professional knowledge to play the pretentious routines that time travelers must have.

Now Charles wants to make trouble because of his playful attitude, and secondly, he wants to build a new holy place with this unique style of painting. This requires him to come up with something that may not be useful, but can make professionals shine.

However, Charles' knowledge reserves do not have much reserves for armor, metallurgy and materials, so he has limited choices and can only find references from other places.

The bulletproof vest was first ruled out. First, he didn't know what materials could achieve Kevlar effect, second, the weapons that the two worlds needed to face were different, and the most important thing was that this method was not metal enough.

All kinds of alloy steels are also excluded. Materials knowledge has traces to follow. You can accidentally put the ore in the wrong way to make stainless steel, but you can't think of it out of thin air.

Harvey armor was also ruled out. This thing was used to armor the warships. The thinnest Harvey armor made by the United States in late World War II was also several centimeters thick.

The reasons for compound armor are eliminated are similar, and at the current level, it cannot be made thin and light enough.

Finally, there is an armor that once became famous in Charles' world...

"The idea of ​​this thing seems to be a reference," Charles thought, "and it is mature enough in craftsmanship. It seems that there are misunderstandings in the dwarves' thinking, and they did not think of this."

The discussion between the two big shots, the workshop technicians and workers has come to an end for the time being, and now we have entered the tea break.

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

The people around them smiled and didn't say anything. They treated this as fun as Bryant's idea.

"There is a little bit of an idea." Charles said in imitating his grandfather's movements and tone.

Now Bryant and Elbach, two old friends of Grandpa Charles, were happy.

Elbach pointed to the blackboard beside him and said to Charles: "Then you go and write down your ideas."

"Okay, then." Charles said cutely, "If I say it wrong, don't laugh at me."

Of course, no one would mock an eight-year-old child on academic issues. Which of the few of them studied was no older than Charles. Their study time was not as good as Harkara who was drinking tea elegantly in front of the background board.

Charles walked to the blackboard, and first drew a "?" and then added a few strokes to form a three-dimensional picture of a steel plate. Then he drew a net parallel to the steel plate below the steel plate. Then he repeatedly drew two steel plates and a net below the net to form a steel plate-net-steel plate-net-web-web-steel plate-steel plate-steel plate-steel plate-steel plate-steel plate-steel plate-steel plate-lower at the bottom, and he drew a sectional picture of "?".

At the end, he casually drew a lesson on the small flowers, and then focused on drawing the soil under it and the roots inside the soil.

After Charles finished painting, he turned his head and found that the expressions on the faces of the people at the long table were different from those when they were relaxing when they were drinking tea and relaxed. He changed back to what he was when he was discussing the issue just now.

"Tell me what you think," Bryant said to Charles. "Don't worry, no one here will plagiarize your thoughts."

Charles cleared his throat and pointed to the root system under the small flowers he drew, saying, "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 firmly grasp the soil."

"I just heard from the two masters that if steel becomes harder, they will become brittle due to their reduced toughness, and will cause cracking when they are subjected to impact."

"At this time, I thought that if a high-tough metal mesh similar to the plant root system was added to the steel plate, these mesh could be closely combined with the steel plate to help the steel plate bear the force of cracking, and whether this would make the steel plate take into account both hardness and toughness."

Charles just thought of the legendary depleted uranium armor, which is made of depleted uranium alloy into a net and embedded in steel to make armor blocks.

Then he thought of reinforced concrete. Although concrete is hard but very brittle, it is pressure-resistant but not tensile. If pressure is applied to a beam made of pure concrete, the pressure-bearing area above the concrete beam is fine, but cracks will occur at the bottom tensile area. Therefore, steel bars with higher toughness than concrete are added to the concrete to bear the tension force under the concrete beam. The expansion from beam to slab is the common reinforced concrete floor slab in buildings. (Interested readers can study it in "Material Mechanics" and "Structural Mechanics")

In Charles' eyes, the mechanics of the vertical armor being cut by people and the horizontal reinforced concrete floor slabs being stepped on by people, so he proposed an armor slab structure similar to the reinforced concrete floor slab.

At the same time, Charles felt it was very strange that concrete was used here, so those who taught them to use concrete should also teach them to use steel bars. So why didn’t the dwarves think of this method? Charles didn’t think of himself as a halo of wisdom reduction, and there was probably something hidden here.
Chapter completed!