The first orbit of the Shenzhou-2 manned spacecraft to fly is an elliptical orbit with a perigee of 200 kilometers and an apogee of 300 kilometers.

This is mainly done from the perspective of energy saving.

Although the thrust of the Hongyan rocket is large, the thrust is not unlimited after all.

Every gram of weight of the rocket, it needs to be carefully considered.

It can save a lot of fuel consumption, and has a great effect on improving the time of manned spacecraft in orbit.

On the night of the launch of the rocket, 21 o'clock.

The Beidu Flight Control Center, through the Yuanze 2 in the Pacific Ocean, injected orbit change commands into the manned spacecraft.

Four high-thrust engines on top of the propulsion module began to work, continuing to adjust the spacecraft's flight angle and speed.

Because the height of the adjustment is at the apogee in the elliptical orbit, it requires less fuel.

The propulsion module of the manned spacecraft worked very efficiently, and the orbit change was completed in a short period of time.

Compared with Shenzhou-1, Shenzhou-2 has more space experiment projects.

The main purpose of Shenzhou-1 is to test the reliability of the launch and recovery system, and there are not too many experimental projects.

Inside the orbital module, a large number of experimental equipment is loaded.

It includes a multi-station space crystal growth furnace for verifying material production experiments in microgravity and a supporting crystal growth observation device.

Because Shenzhou-2 is also an unmanned spacecraft, these experimental equipment are all automated production.

In addition to the crystal growth furnace, more important are the widely concerned cell "space wedding" - animal cells and plant cells two space cell fusion experiments.

They are used to explore the fusion experiment of B lymphocytes and myeloma cells for the exploration of pharmaceuticals, and the fusion experiment of Huanghua tobacco protoplasts and innovative No. 1 tobacco protoplasts.

The main thing is to explore new methods of space medicine, after all, microgravity in space is difficult to achieve on the ground.

These devices are all in the sky for the first time, so their working status is also what everyone is most concerned about.

"Has our superalloy crystal growth begun?"

Zhang Xingyang asked with some curiosity, and Su Xiao, who had been in contact with the flight control center, asked.

The crystal growth furnace on the manned spacecraft needs to grow a large number of materials, including: semiconductor optoelectronic materials, oxide crystals, metal alloys, etc.

The Inconel superalloy used in the turbine disc used by the Rocket Research Institute for the YF-100 rocket engine and the WS-10 aero engine was included in this experiment.

The microgravity environment in space allows the crystals in the growth furnace to be unaffected by the earth's gravity during the growth process.

It can be grown uniformly and has a more perfect crystal structure.

However, because it is an unmanned spacecraft, everyone still has certain doubts about whether it can succeed in the end.

"Ten minutes ago, they just said the experiment had begun."

The answer given by Su Xiao did not have any useful information.

"Space growth furnace detection device, has the data returned?"

Although there is no way to control the process of the material in the space growth furnace, the growth process of the crystal can be observed.

Then, the situation in the crystal growth process is analyzed, which provides a theoretical basis for the subsequent performance analysis.

"It hasn't been sent back yet, and judging from the reply over there, it will probably take a few days to get the data."

Su Xiao told Zhang Xingyang about the results of the previous communication with the center.

"Okay, let me know as soon as the data comes back."

Although there was no way to get the data in the first place, Zhang Xingyang was not too angry.

He also knew that at this time, various experiments were being carried out in various centers, especially the flight control center's orbital observation of manned spacecraft was more important than their experiments.

With limited data transmission capacity, it is natural to prioritize meeting their needs.

And their superalloy crystal growth experiments, even if the data are available later, there is no problem.

To say that the flight control center is now paying the most attention to the manned spacecraft itself.

The spacecraft's orbit is in a circular orbit of 300 kilometers, and the Earth's gravity at this altitude can still have a great impact on the orbit of the spacecraft.

In the spacecraft's scheduled test program, the spacecraft will not turn on the engines of the thrust module to maintain its orbital altitude for the first six days.

It's also to test how much of an impact Earth's gravity will have on the spacecraft.

Although the theoretical daily deviation value can be obtained with a little calculation, the actual situation is always the most complex.

Without actual testing, no one knows what the real deviation will look like in space.

In space, in the space growth furnace in the orbital module, the superalloy is growing slowly.

But what is even more striking is the spatial cell fusion experiment.

After all, in these years, in many film and television works and stall literature, there are many scenes about creatures entering space and then mutating under the action of high-energy rays in the universe.

With such a preconceived notion, many do-gooders are discussing whether the new cells born after cell fusion will mutate.

What's more, it is believed that human beings should not go to space, and after entering space, the human body's genes will mutate, and deformed offspring will be produced.

Especially in various hero manga and anime, many superheroes have been mutated after being irradiated with high-energy rays.

However, those who really understand the situation actually know that the orbital module is a place where astronauts live and work in the sky.

It has a thick enough radiation shield to protect against all kinds of radiation.

Otherwise, it is very likely that the irradiation process of cosmic high-energy rays will cause a lot of damage to the body.

Therefore, the experiments carried out in the orbital module will not be affected by cosmic rays, and the greater impact is actually the microgravity environment!

Six days later, the flight control center had obtained enough orbital data to begin injecting orbit change data into the spacecraft.

The ship's propulsion module engine began to work, slowly raising the ship's altitude.

After experiencing several sun-rising and setting events, the spacecraft began to maintain its altitude at an altitude of three hundred kilometers.

"Brother Xingyang, the data analysis of the space growth furnace is finished."

At the Materials Experiment Center of the Rocket Research Institute, Su Xiao handed the newly completed material analysis report to Zhang Xingyang on the side.

After taking the report, Zhang Xingyang quickly flipped through it.

Basically, we understand the process by which superalloy crystals grow in a microgravity environment.

In the growth furnace, because the buoyancy convection caused by gravity is difficult to avoid, in the process of crystal growth, the transport process of solutes and the interface characteristics between crystals/solutions will be greatly affected, which will affect the size and properties of crystals.

In the microgravity environment of space, because the gravity of the earth has little effect, there will be no gravitational deposition, and the aggregation between particles will be suppressed.

In the growth furnace, the number of crystal nuclei that can form spontaneously is also greatly reduced, making it easier to grow larger crystals.

The purity of the crystals will also be greatly improved.

Judging from the report, although it did not reach the crystal growth furnaces that were placed in high orbits and were in a near-zero gravity environment.

However, judging from the current conditions, the gap between the data and Zhang Xingyang's expectation is not particularly large.

"Do you think this kind of data is good?"

Looking at Zhang Xingyang, who was still flipping through the report, Su Xiao asked.

As the person in charge of the Materials Experiment Center, Su Xiao has also grown a lot in the past few years, but she also knows it.

His own level, in front of Zhang Xingyang, was as bleak as the stars before Haoyue.

"Judging from the data alone, the crystal structure is better than when we were originally on the ground."

After Zhang Xingyang finished reading the report, he put a thick dozen pieces of paper under the desk, looked up at Su Xiao and said.

"Basically, at the level I expected."

At this time, Su Xiao also breathed a sigh of relief.

Being able to get Zhang Xingyang's evaluation shows that there is no problem with his material formula.

The material formula this time was mainly developed by Su Xiao.

After all, Zhang Xingyang is carrying a lot of major projects, and for sub-projects like this, there is not so much time to stare at.

At most, it is just a little time at some key nodes to look at the progress of the project.

"That's good."

Su Xiao's expression relaxed a little at this time and said.

"However, the most we can do now is explore microgravity environmental production."

"Practical application, it should be far away."

Simulated microgravity growth environment on the ground is still a difficult topic to study.

Everyone in the world is basically in the exploration stage.

"In fact, if you want to achieve microgravity crystal growth on a large scale, there are still many ways."

Zhang Xingyang is more optimistic, at least he has a lot of ideas.

"Depending on the route, there are probably two ways."

"The first is to find a way to build a large-scale orbital crystal growth furnace cluster in orbit."

"There are two main difficulties in this route, one is that if we want to mass production, we must build a large-scale space station, which is still difficult for us."

"Another difficulty is that in order to maintain such a huge space creation, a large number of astronauts are needed to maintain it in space."

"This is also difficult for us."

"So this technical route, if you want to get through, it's very difficult!"

When Su Xiao heard this, his heart was also half cold.

"So we can only wait until a few decades before we can produce it on a large scale?"

Zhang Xingyang glanced at Su Xiao a little strangely, not knowing how she came to such a conclusion.

"It won't take a few decades, and it will be enough to walk this path for a maximum of ten years."

"Of course, there are faster ways."

"What's the solution?"

At this time, Su Xiao was also a little curious about what kind of way he had.

"You also know that the advantage of microgravity is mainly that gravity-induced buoyant convection no longer exists."

"Then if we want to get the same growth effect as in space, we just need to start from buoyancy to hand."

"For example, the magnetic field can be strengthened outside the growth solution to reduce the gravitational settlement and buoyancy convection in the solution during crystal growth."

Hearing the technical method Zhang Xingyang said, Su Xiao's eyes lit up.

Yes, since the biggest impact is buoyancy convection.

Then find a way to get rid of it!

In fact, Zhang Xingyang did not say the disadvantages of this technology.

The first is that the strong magnetic field will slow down the nucleation of the crystals, and the production efficiency will also be slowed down, hindering the crystallization process, resulting in a much increase in the growth time of the crystals.

Secondly, strong magnetic fields are not so easy to do, and require a lot of advanced equipment.

Zhang Xingyang did not say these bad points, because he didn't want to take such a technical route at all.

He is still more optimistic about the plan of the space production base.

Just when Zhang Xingyang and Su Xiao were communicating on the ground about the future material production methods.

Manned spacecraft uses the engines on the propulsion module to maintain its altitude in space.

The solar and cosmic high-energy radiation monitors in the orbital module began their work.

Because the earth is protected by the atmosphere, most of the high-energy rays from the universe will be absorbed by the atmosphere.

This is also an important reason why the creatures on the ground can grow healthily.

But it is precisely because of this that it is basically impossible to detect cosmic rays on the surface.

The best way to truly detect cosmic rays is to take the test equipment into space and test it in the field.

The high-energy radiation monitor of cosmic celestial bodies continuously records the intensity of various types of radiation monitored in the data box in the cabin.

The data box is specially reinforced to ensure that the internal data is not lost even under the extreme conditions of the recycling process.

The in-orbit time of Shenzhou-2 far exceeds that of Shenzhou-1, reaching an astonishing 20 days.

This is mainly due to the fact that the thrust of the Hongyan rocket is large enough, the manned spacecraft can carry more experimental equipment, and the engine of the propulsion module can carry more fuel.

For a longer period of time, maintain the orbital altitude of the spacecraft

Shenzhou-2 compared to the previous Shenzhou-1. There are a lot of in-orbit experiments, and when Shenzhou-1 is launched, everyone is most concerned about whether the spacecraft can be successfully sent into orbit.

Not much attention is paid to other aspects.

On January 25, after 20 days of orbital flight and 324 orbital orbits.

The return capsule turned into a meteor and returned to the Amugulang grassland.

After the recovery of the simulated astronauts, experimental equipment, and various seeds in the return capsule.

The mission of Shenzhou-2 was a complete success.

Next, manned spaceflight will enter one of the most important levels.

Shenzhou-3 will take the first domestic astronaut into the sky.

Complete the first step in the three-step plan for manned spaceflight.

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(End of chapter)