Hand rubbing nuclear fusion live in the wilderness

Chapter 400 Unsolvable Problem

It took more than three hours for Won to complete the matching and screening of conventional metals.

【Zinc, Aluminum】【Aluminum, Magnesium】【Iron, Nickel】【Tin, Bismuth】.
[iron, nickel, titanium] [yttrium, titanium, chromium]

The nearly hundreds of combinations recorded on the paper are all the results of his more than three hours.

Although the number seems to be quite large, this is only the first rough screening, and a re-examination will be carried out later.

His ultimate goal is to leave three to five for experimentation and find suitable alloys from the middle.

Of course, if it succeeds, it means that this line of thinking is correct.

The idea is right, it will be much easier to use this method to smelt or 3D print metal parts in the future.

Moreover, 3D printing technology will usher in great development, and it can even be said to fly directly with wings inserted.

Think about it, most of the things you need in the future can be printed by 3D printing technology.

From daily necessities such as teacups and rice bowls to transportation vehicles such as cars and airplanes, and even residential houses, they can all be printed by 3D printing technology.

I have a 3D printer at home, so I can print whatever is missing.

Even food can be printed, provided that there are corresponding materials.

In 19 years, researchers at Tel Aviv University in Israel in the Middle East used a heart patient's own tissue as a raw material to 3D print a "complete" heart with cells, blood vessels, ventricles and atria.

Unfortunately, the printed heart didn't work properly.

Busy until one o'clock in the morning, after having a late-night snack, Han Yuan finally screened out the combination of more than 100 alloy materials to [-] kinds.

It was too late, and the remaining work and data calculation could only be postponed.

However, Won is not in a hurry for this. Although there is not much time left, it is enough to complete the task of material research and development.

After all, there is really no way out, and there are various materials developed by various countries in reality.

While that might result in a much lower reward, it's better than nothing.

Do your best to do everything well. As for what the final reward will look like, leave it to the system.

At least after trying hard, you won't regret it.

The next day, in the early morning, the live broadcast started as usual, and Won came to the smelter, ready to continue the smelting work of 'rock cotton' that had not been completed yesterday.

The required potions were prepared yesterday afternoon, and we will know how effective they are today.

He also didn't expect the smelting of 'rock cotton' to be as successful as the AZO transparent film in the third-level mission.

Because the demand conditions for rock wool are much more vague than that of AZO transparent film, Han Yuan doesn't know to what extent he wants to smelt this material thoroughly.

Anyway, it is smelted first, and then optimized step by step according to the test data.

The only thing that needs to be guaranteed is that the performance of this kind of rock wool meets the minimum requirements and it is not harmful to the human body.

The high-quality rock mined yesterday was thrown into the furnace by Korean won, and the temperature rose and stabilized at [-] degrees.

After a few minutes, the rock in the furnace gradually melted and turned into a liquid.

These liquid rocks, which can be called magma, flow into a high-speed centrifuge along a special pipeline.

A centrifuge with a speed of up to [-] per minute turns the molten magma into fine rock fibers while it is hot.

In fact, when humans study rock wool, this process is a simulated volcanic eruption.

The original rock wool originated in Hawaii.

After the last volcanic eruption in the Hawaiian Islands, islanders found strands of melted soft rock on the ground.

This is the rock wool fiber that was first recognized by humans.

When Han Yuan was studying rock cotton, he didn't know these things. He deduced them from the physical properties of rocks.

The high-speed centrifuge spins rock fibers at a high speed, and the various solvents produced yesterday are sent into the centrifuge through the pipes flowing out, and are fused with the rock fibers that have been spun out.

A special binder binds the rock fibers inside the high-speed centrifuge together.

Anti-dust oil can keep the surface of these bonded rock fibers relatively smooth, preventing these rock fibers from being stained with impurities such as dust.

After centrifugation, the rock fibers mixed with various solvents are sent out through the centrifuge port, and then collected by the collector and sorted into pieces of rock wool boards.

This is not over yet. Although the finished rock wool board looks like it has been formed, the fiber structure inside is still messy.

Therefore, it needs to be sent to a special equipment to sort out the three-dimensional chaotic structure of the rock fibers inside these rock wool boards.

This step takes a bit of time. According to the Korean won data, it will take about five or six hours.

So it was not until after two o'clock in the afternoon that the first rock wool board made of rock fibers was really formed.

The first piece of rock wool was freshly baked, and Won picked it up wearing gloves, masks and other protective equipment.

The rock wool board just out of the oven is still a little warm, but it is not hot.

When Han Yuan picked it up from the ground, this rock wool board with a diameter of no more than two meters clearly completed a half-arc.

It can be seen that its softness and toughness are quite good.

After a preliminary inspection of the rock wool board, Han Yuan pinched the edge with his hands.

The audience in the live broadcast room could clearly see that the pinched place was sunken, but as soon as the hand was released, the sunken place quickly returned to its original shape.

This scene amazed the audience in the live broadcast room.

[It's still soft. 】

[It looks like a foam board, and it is also elastic. 】

[It's incredible that a rock can really turn into something like cotton. 】

[Is this asbestos?The ultimate cause of lung cancer. 】

[In the final analysis, this thing is actually a thing of the same nature as glass fiber, but glass fiber is harder than this. 】

[Rock wool is not asbestos, asbestos is a natural material, and this is obviously processed by the anchor. 】

[Rock = stone, so what is the name of the cotton made of stone? (ω`)?]

[I seriously doubt that the anchor prepared this thing in advance, and then processed it pretendingly and then took it out directly. How could something like a rock turn into soft cotton? I don't believe it. 】

[Read more books upstairs, don't play with boogers when you are in school→_→]

[Rock wool is a material. There is a rock wool processing factory near my house. It is very disgusting. After touching the skin, it feels itchy. I have complained countless times to no avail. 】

The audience in the live broadcast room were very interested in this kind of thing made of stone.

However, experts from various countries were slightly disappointed after watching the manufacturing process.

Because there is not much difference between the 'rock wool' displayed by Korean won and the 'rock wool' they produce.

Not only is there not much difference in the manufacturing process, it can also be seen from this simple test that the properties of the two should be similar.

So it is absolutely certain that rock wool and rock wool are one thing.

This kind of gadget, which appeared in the 90s of the last century, has a wide range of uses for humans, but the manufacturing technology is quite mature.

In other words, the technology displayed today has no reference value.

Even to a certain extent, the rock wool manufacturing technology displayed in this live broadcast room is not as good as their rock wool manufacturing technology.

Of course, this is just an idea in the minds of experts from various countries, and no expert will publicly knock it on the screen.

Han Yuan didn't know about this, and he didn't have time to pay attention to it now.

The rock wool has been manufactured, and it was successful at the first time, which also verified that there is no problem with his theoretical data.

The next step is to test these finished products to see how they perform on parameters such as temperature insulation capacity, tensile strength, compressive strength, thermal conductivity, and average fiber diameter.

After the inspection is complete, make adjustments.

It took half a day for Han Yuan to complete the preliminary inspection of the rock wool board.

Some general parameter information has been recorded.

The performance of the rock wool produced for the first time is much better than Won's prediction.

The thermal conductivity is lower than 0.031W/m·K, the tensile strength reaches 32Kpa, and the compressive strength and average fiber diameter are all beyond the Won's expectations.

There are data that exceed expectations, and there are also data that are being calculated.

Although these rock wool boards have good performance after processing, they also have disadvantages.

Like asbestos and rock wool produced in various countries, the rock wool he produced passed the damage test and found that it would also split a large amount of dust powder.

Most of these dust powders are composed of fine rock fibers.

If it is inhaled into the lungs, it will be deposited in the lung cells like asbestos fibers, eventually causing lung cell necrosis.

Although the number is much smaller than the asbestos fibers split from asbestos sheet damage, there are still many.

However, wearing a regular N95 mask can prevent these rock fibers from entering the lungs.

In addition, the rock fibers that burst out of these splits can cause discomfort when they fall on the human skin.

Won tested it himself, but when a rock wool board snapped off on his forearm, it shed a layer of fine rock fibers.

When these rock fibers come into contact with the skin, they can cause a tingling sensation similar to a needle prick, as well as cause goose bumps and itching on the surface of the skin, making people want to scratch unconsciously.

Obviously, rock wool with the above two defects does not meet the requirements of the won.

The rock wool he wants is harmless or extremely weak to the human body, so this material needs to be improved again.

Holding the detected data, Han Yuan fell into deep thought again.

Judging from the test data, the improvement of this kind of rock wool is not so easy to do.

Because the softness and low thermal conductivity of the rock wool board actually come from the rock fiber.

This extremely fine rock fiber gives most of the performance of the rock wool board, but they are also the culprit of harm to the human body.

The combination of the two is difficult no matter how you deal with it.

After thinking hard for a long time, Han Yuan thought of the first improvement method.

Since the rock fiber cannot be solved, finding a way to completely glue it together may change this problem.

There may be ways to improve on the special binders that were previously added to these rock fibers.

As long as these extremely thin rock fibers are glued together, even if they break, the number of fibers that burst out can be reduced.

At least in theory, South Korea thinks this method is feasible.

But reality soon hit him hard again.

The improvement of the special binder is limited to a certain extent in the binding effect of the rock fiber. No matter how the won is improved, when these rock wool boards are burst and damaged, a large number of rock fibers will still fly out.

"It's really a headache."

Looking at the latest test data, Han Yuan stroked his temple with some headaches.

It actually took only two days from theoretical research to the production of the first batch of rock wool, but the subsequent improvements have already taken him four days.

Counting today, it is actually the sixth day of research and development of rock wool materials.

During these six days, even the audience in the live broadcast room became a little impatient.

After all, he has been improving one thing for a week, and ordinary viewers only know that he is improving the defects of the rock sponge.

For some special terms in Han Yuan's mouth, most people are confused and don't understand much.

Coupled with repeating a step for a long time, the audience in the live broadcast room became even more impatient.

On the contrary, experts from various countries returned to the live broadcast room one after another when Won began to correct the defects of the rock wool.

The full display of such repair steps for a material defect is quite revealing.

Experts from various countries are very interested in how Korean won can solve the problem of rock wool’s harm to the human body, because rock wool and asbestos are not only very similar in structure, but also cause harm to the human body in almost the same way.

If rock wool can be resolved, asbestos can also be reused.

In addition, there are other materials, such as cement, gypsum and other powder materials, which may also be solved in this way.

In this way, the damage of building pollution and material pollution to human body and nature can be reduced a lot.

Han Yuan has no time to care about the audience in the live broadcast room. Since he got the live broadcast of this system, he is in such a predicament for the first time.

It took four or five days, but there was not much progress.

You must know that in the past four or five days, KRW did not care about the thermal conductivity, softness and other performance problems of the rock wool.

The flaws in the rock wool slabs he's dealing with exclusively these days.

However, several methods have been tested, but none of them can completely solve the problem of rock fiber bursting.

Although this problem can be completely solved by using a large number of special binders, new problems will appear again.

If a large amount of special binder is used, the manufactured rock wool board will be very hard, just like cooled magma, and its thermal conductivity, softness, corrosion resistance, weight and other properties will be greatly reduced.

This is unacceptable to the won.

(End of this chapter)