After leaving Qian Lixun's resting ward, Ye Zhou immediately notified Chen Hao to prepare to receive technical documents provided by Chou Guo. At the same time, he also came to the core target room of Shenguang No. 4 device and restarted the temporary suspension of pre-ignition detection work.

“Has the flaw detection completed?”

Ye Zhou looked through the inspection record document in his hand and asked the staff on the side.

"It has been completed, the material is good, and the segregation damage of ODS steel welding is controllable--most of the structures are manufactured by jet forming, with few welding points and little impact."

Ye Zhou nodded slightly. In fact, compared to the other core difficulties, what Ye Zhou was most worried about was that there was no problem with welding problems in the technology provided by the simulator.

Because the ods technology is used on a large scale in the material technology of the first wall, the strength, creep resistance and radiation resistance of the material are greatly improved through the small ods particles dispersed in the alloy matrix.

However, the problem follows, that is, the welding of this material is quite difficult.

If the welding method is ordinary, local melting and then solidifying again, the ODS phase will be severely segregated under the action of gravity and solid-liquid interface tension, making the welded part the weakest point in the structure.

"What welding method is used?"

"The small part uses laser welding, and most of them use explosive welding. The laser welding part is not a big problem. The instantaneous temperature of the welding equipment is very high and the welding gap is extremely small, so it can be completely controlled within the strength requirements."

The so-called explosive welding refers to the processing technology that uses the energy of explosive explosion to dissolve two opposite metal plates together. This process is essentially a pressure welding. The pressure and temperature inside the material do not change much. It uses a pure solid phase sintering mechanism, which ensures the stability of the ODS phase inside the material.

However, in the long run, such welding method is too expensive, and the success rate and yield rate are also low. If you want to launch a large-scale fusion device in the future, you will definitely have to go to the path of integrated molding and casting in the end.

After confirming that there was no problem with the welding technology, Ye Zhou did not test the vast number of testing projects one by one. This was originally a system project, and everyone was responsible for their own part. As long as the person in charge thought there was no problem, there was no problem.

----In other words, I can only think that it is fine.

The role of personal knowledge in it is limited. As long as you control the key nodes, you can basically ensure the success rate of the experiment.

This is actually the reason why Qian Lixun can let go at this time. If this project is still in a state of necessity, he will probably have to complete the entire testing process even if he is desperate.

After browsing silently for a while, Ye Zhou asked directly:

"Are there any high risk points found during the inspection? Is there any component that performs poorly?"

The staff member on the opposite side shook his head, but nodded immediately.

"In theory, judging from our current test results, there is no high risk point, but there is one problem... Everyone is a little worried about the performance of the first wall material."

"Is it because there has been no irradiation experiment?"

Ye Zhou asked with a frown.

In fact, according to the normal process, the anr-ht material as the first wall material should undergo a full-range irradiation experiment, but the difficulty of such an experiment is too great.

The radiation faced by fusion reactors mainly includes three parts: neutron radiation, ion radiation and electron radiation. Among them, the experimental conditions for neutron radiation are the most harsh. Judging from the current technology, humans do not have suitable experimental sites and equipment at all. The only thing they can do is to use fission reactors to perform experiments.

This experiment requires long-term radiation to dpa--that is, the atomic ion rate caused by radiation. After the irradiation is completed, you have to find a place to place it for a period of time to eliminate the radiation dose. Otherwise, the experimenter who comes into contact will be exposed directly to high doses of radiation, which is really exchanging his own life for the result.

In addition to neutron radiation, although ion radiation and electron radiation are much safer, high-energy ions are difficult to conduct macroscopic testing. Electronic radiation also has the problem of high-voltage electron microscopy, which is time-consuming and troublesome to operate.

In short, considering these issues, Ye Zhou's last instruction was to skip large-scale irradiation experiments and only perform a few key metal phase characteristics tests, which is probably the reason why the staff have low confidence in the materials.

Hearing Ye Zhou’s question, the staff opposite nodded and replied:

"It's true. Leader, you know that most of these researchers are perverted and are worried if they can't see the data."

"But this does not affect the overall experimental progress, that is... we want to know, is this material really reliable?"

Ye Zhou didn't know how to answer this question for a moment. From his own perspective, he could pat his chest to ensure that the materials were absolutely fine, but how could he convince the staff?

Although the documents provided previously contained a series of test data, those data did not really pass through the hands of any researcher, and they would naturally remain a little suspicious if they were not experiments made by themselves.

This is probably the spirit of truth-seeking that is common in scientific research - it seems a bit difficult to understand, but it is precisely this rigorous spirit that technology can continue to develop forward.

After thinking for a while, he answered:

"We can discuss this issue of irradiation testing later. Experiments can be done, but the problem is that our time is too tight and we can only postpone it."

"It is normal to question the existence, but there is definitely no problem with the material itself, so you can rest assured of this."

"The most important thing now is to realize the ignition first. If you encounter any resistance in the advancement in the future, you can tell me that I will find a way to solve it."

The staff nodded and replied:

"If you understand, then we will continue to follow the road signs and plan to start the ignition in 5 days."

In 5 days, if we follow the requirements of the current relevant technology of target pill manufacturing, after obtaining the Chouguo technology and using existing resources, it will take about 5 days to make new target pills, which gives them a chance.

An opportunity to solve problems at once.

"Have the target pill been installed?"

Ye Zhou asked.

"Not yet, the black cavity test of the target pill was placed last, so it has not been installed yet."

"That's good. In a few days, we may use new target pills and test them first. If the results are OK, then use the new target pills to replace the one we are using now."

"New target pill?"

The staff repeated in surprise, paused for a moment, and then continued to ask:

"Leader, where did the new target pill come from?"

"The ugly people gave it to me, and in this regard, their technology does have advantages."

"Ugly people? Why?"

The other party asked in shock.

Ye Zhou smiled and replied:

"Who knows? Maybe they suddenly woke up and found that being a dog licking is the only way out."

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