Hand rubbing nuclear fusion live in the wilderness

Chapter 231 The technological gap between countries
Korean Won has long been used to the fluctuation of the number of people in the live broadcast room.

The daily live broadcast is no longer a task for him, but it is as natural as eating and drinking.

Although Won doesn't pay much attention to the barrage on the virtual screen when he's working, it still brings him a lot of joy to watch it occasionally.

After all, most of the time, the audience's comments in the live broadcast room are as usual sand sculptures, and the questions they ask are also the kind that open their minds.

Occasionally, he can also gain some inspiration and ideas from the barrage.

Of course, this ratio is like panning for gold in a sea of ​​sand.

After the broadcast, he tidied up the chemical laboratory and the alloy smelter, and walked back to the living room under the moonlight.

It was not early, it was past ten o'clock in the evening when the broadcast was broadcast, and it was almost eleven o'clock when he returned to the living room.

It seems that there will be one or two hours less study time tonight.

As for data records, there is not much information to be recorded for today's alloy smelting, so we can just get it together tomorrow night.

After getting some food to deal with, Han Yuan put on the study medal, set a vibrating alarm clock and entered the study time.

After a night without dreams, Han Yuan woke up automatically at around [-]:[-] the next morning.

In the next few days, we will test the titanium-aluminum alloy plate that was smelted yesterday.

The process of testing titanium-aluminum alloys took a little longer than he thought.

In his estimation, if multiple tests start at the same time, it will take about five to seven days, and the basic requirement test can be almost completed.

But in fact, it took nearly ten days to complete the basic requirement test for titanium-aluminum alloy.

What delays time is mainly the residual stress test, which has been stuck for two days at this step.

The manufactured titanium-aluminum alloy has some gaps with the standard in the second residual stress test.

All metallic materials generate different residual stresses during machining and thermal processing (castings, weldments, forgings).

The existence of metal residual stress has a significant impact on the mechanical properties of materials, especially in the process of manufacturing and heat treatment of welded parts.

The existence of residual stress, on the one hand, will reduce the strength of the workpiece, causing process defects such as deformation and cracking of the workpiece during manufacturing;

On the other hand, the mechanical properties such as fatigue strength and stress corrosion of the material will be reduced during the natural release process after manufacture.

This causes problems in use.

This is especially important for metal materials.

Won does not dare to underestimate the residual gravitational force on the titanium-aluminum alloy that does not meet the standard.

Because it is related to his life safety.

The release of residual gravity is not up to standard, so South Korean won't dare to install titanium-aluminum alloy on the aircraft.

Because the skin on the surface of the aircraft is not a whole, but a combination of pieces of titanium-aluminum alloy.

It ends up being fixed with a lot of rivets and welds.

If there is too much residual stress on the titanium-aluminum alloy plate, it may cause the rivets or welding traces to collapse during the flight, or a certain piece of skin may bulge up as if it was inflated.

Don't look at this little bit, but when flying at high speed in the sky, any small defect will be infinitely magnified.

In particular, aircraft also rely heavily on wings to provide lift.

Once there is a problem with the wing part that provides the lift, it will lose some lift at the slightest, and the aircraft will be destroyed at the worst.

Korean won would never dare to gamble with this.

Nine times out of ten bets, you can win a thousand times in this kind of thing, but you only need to lose once, and you are completely finished.

But fortunately, on the ninth day, he still thought of a way to accelerate the release of residual stress in the titanium-aluminum alloy through a special method.

Finally, it can be ensured that after the titanium aluminum alloy is produced, the residual stress can be eliminated to the extent that meets the standard requirements within the specified time.

After confirming that it was effective, Han Yuan finally breathed a sigh of relief.

Although the smelting methods of these titanium-aluminum alloys are provided by the system, they have also been mastered through his in-depth study.

But sometimes in the manufacturing process, there will still be some unexpected and guessable accidents.

For a long time, with the help of genetic agents and systems, he has basically succeeded in creating anything.

Moreover, the parts and materials successfully manufactured can basically pass the test.

For a long time, he has relaxed some attention and rigorous attitude.

If it hadn't been related to his own flight to the sky this time, I'm afraid he wouldn't have conducted such a complicated test.

It is very likely that the residual stress relief will not be found to be substandard, and it may end up being a huge disaster.

Just like this time, if the basic test is not carried out many times, it is very likely that there will be problems when flying in the future.

Although it took an extra two or three days to test the titanium alloy material, KRW felt it was worth it.

This residual stress test incident sounded a wake-up call for him.

Remind him that consistent and rigorous testing of any scientific research results, including materials, is a must.

After finishing the performance test of the titanium alloy material, Han Yuan relaxed a lot from his nervousness at the beginning.

After downloading the broadcast, he opened the system mall and found the materials he needed.

Titanium, aluminum, antimony, cobalt, vanadium, nickel, silver, copper, iron, carbon, silicon, resin, plastic, chemical fiber.
These metallic materials and non-metallic materials are all necessary materials for the manufacture of 'electric propulsion-no working fluid engine'.

Among them, high-purity titanium and vanadium are the focus of core materials.

Both of these two materials have quite excellent properties, and have quite excellent properties in terms of corrosion resistance, heat resistance, low temperature resistance, damping resistance, elastic modulus, etc.

Even in human society, it is also a very widely used metal material.

Especially in aviation industry, atomic industry, power technology, etc., titanium is almost inseparable from it.

According to the information and data marked on the design drawings, Korean won exchanged titanium, aluminum, antimony, cobalt, vanadium and other materials one by one, and placed them in the alloy smelter.

These materials will all be used when starting to manufacture electric propulsion-no working medium engine tomorrow.

Although an engine may be two or three meters long, the complexity of the parts inside can burn most people's poor brain cells to death.

It is a "turbine engine" on an ordinary civil aircraft, and its parts are all counted in units of tens of thousands.

Not to mention top-notch aero engines.

An aero engine with a diameter of no more than 1 meter needs to provide a thrust of up to ten tons after ignition.

At the same time, all parts of the engine need to withstand the burning of thousands of degrees of flame.

This has very strict requirements on the material selection of various parts of the engine, as well as the mechanical structure.

In the early years, experts from certain countries frantically stated that even if they sent the engine drawings of their fighter jets to a certain country.

Within ten years, no country can imitate it.

Although it is a wild statement, it can be seen that there is a huge gap in top technology between countries.

Of course, these are past tense.

But in the same way, South Korean Won also dares to speak out now, even if he built the "electric propulsion-free engine" and sent it to some countries.

Without his personal explanation, some countries will not be able to imitate it within 20 years.

It's not that he underestimates certain countries, but that's the truth.

"Electric propulsion - no propellant engine" is in accordance with the progress of human's current technological development.

At least 50 years later, or even something that will appear in the next century.

The gap in between is that big.

In addition to the rigid requirements of materials, hardware, special thermal magnetic fields, and ionic electric fields.

Another software requirement is the control system.

Without a matching control system, even if you build it, you can't use the electric propulsion engine.

It's like you have imitated a computer, but there is no system in the computer, and you can't even turn it on.

Only when the software and hardware are matched at the same time, the computer can be turned on and the electric propulsion system can play a role.

(End of this chapter)