The first test piece was welded, and it looked very beautiful from the outside. It was a typical "fish scale welding", and Zhang Yi's welding skills were undoubtedly revealed.

The specimen was sent to the welding laboratory for further inspection. If it was qualified, the specimen welding was successfully passed, which means that the formal steel plate could be welded.

"Chief Yang, how about we go to the lounge to sit and have some tea?"

It is estimated that it will take some time for the result to come out. Yang Fan nodded and said, "Yes, take a little rest first."

Accompanied by the director of the welding workshop, several people walked into the lounge and sat down on the sofa. Soon someone made hot tea and brought it over.

Sun Baoguo seemed full of confidence and said with a relaxed look on his face: "I don't think there should be any problem. Zhang Yi is our best welder."

The director of the welding workshop also said: "Mr. Sun is right. Welding of the test piece should be passed. Zhang Yi has a lot of experience. If he cannot pass the welding, what should the others do?"

Yang Fan took a sip of tea and said softly: "I hope so."

Inexplicably, Yang Fan was a little worried. This was a new steel type. No surface ship had used such steel type. The welding of this steel plate was the first time for Dongjiang Shipyard.

Hope the welding is successful.

Yang Fan comforted himself in this way in his heart, trying to make him less worried.

Obviously, Sun Baoguo seemed to be confident in the welding of the specimen and did not continue to talk about the welding of the specimen, but talked more deeply about the welding of the segments to be carried out.

The 054 ship adopts the modular construction method of the main section. When the ship is built, three large main sections will be closed and welded together.

Each total section is composed of several sections. The welding workshop will first start the welding manufacturing of each section, and then the welding manufacturing of the total section.

Sun Baoguodao: "Chief Professor Yang, you are an expert in modular construction of the main section. The construction process of the 054 ship is like this..."

He introduced the construction process of the 054 ship in detail, and Yang Fan listened carefully.

After the talk, Sun Baoguo asked with a modest look on his face: "Chief Teacher Yang, do you think there is any problem with us using this construction process?"

The director of the welding workshop next to him opened his eyes wide and showed an incredible expression. He probably couldn't calm down.

What's going on!

Mr. Sun is an expert in ship construction. How could he ask Chief Professor Yang for the construction of the 054 ship? Even if he wants to ask for advice, it is still some design matters.

He can't figure it out!

Especially when he saw Sun Baoguo asking for advice with a modest look on his face, Yang Fan looked as if he was taken for granted, he said he couldn't stand it and didn't even bring such a play.

What's going on???

Maybe he noticed his incredible expression, Sun Baoguodao: "Don't be surprised. Chief Engineer Yang not only has a high level of ship design, but also an absolute expert in ship construction."

"The Type 052 missile destroyer uses the modular construction method of the main section. You should know this, but you definitely don't know that not only Chief Engineer Yang suggested using the modular construction method of the main section, but also Chief Engineer Yang taught the Donghai Shipyard step by step."

What!

There is actually such a thing!

The director of the welding workshop looked shocked. Others, such as the two deputy directors of the welding workshop and several technicians, had basically the same expression.

Sun Baoguo continued: "We started to try to promote the modular construction method of the main section a few years ago. Now we have a certain foundation and experience. It was also the suggestion of Chief Professor Yang at the time. In the actual process, there are some things I don't understand. I often ask Chief Professor Yang for advice."

My God!

Mr. Sun also often asks Chief Professor Yang about the modular construction method of the general section!

If Mr. Sun hadn't said it himself, who would have believed it!

Chief Secretary Yang, you are amazing!

Everyone's eyes looked at Yang Fan were different, some were shocked, some were admired, and so on.

Yang Fan said modestly: "Mr. Sun is too exaggerating. I have only made some research on the modular construction method of the main section."

Sun Baoguodao: "Chief Yang, you are still so humble. I don't care. You must give us some advice on the construction of the 054 ship."

He had just introduced the construction process that Dongjiang Shipyard will adopt in a more detailed manner, and Yang Fan also listened carefully.

Seeing that Sun Baoguo really wanted to make suggestions by himself, Yang Fan pondered for a moment and then made a few suggestions.

Perhaps his experience in ship construction is not as good as Sun Baoguo, but Yang Fan has the experience of the next few decades and is used to the advanced ship construction technology and methods in the future. Combined with the actual situation of Dongjiang Shipyard, he casually made some suggestions.

Yang Fan really just mentioned a few points casually, but it was different in Sun Baoguo's eyes.

The eyes were absolutely lit!

He is worthy of being Chief Commander Yang!

This is really high!

Sun Baoguo quickly took out his notebook and recorded what Yang Fan said seriously.

The people next to him were not laymen, and they had some experience and research on ship construction. After listening to Yang Fan’s suggestions, their eyes lit up.

It's about the point!

A few very valuable suggestions.

Someone even slapped his thighs violently and thought to himself, why didn’t I expect that Chief Secretary Yang is really awesome, he is so skillful!

There was a little more admiration in everyone's eyes.

After remembering these things and asking for advice, Sun Baoguo raised his hand and looked at the time, and said loudly: "It should be almost the same, but the result should have been out. Let's go and take a look."

A total of several people left the lounge together, came to the welding site, and walked to the welding station.

Everyone came over with talking and laughing, which was very relaxed. Including Sun Baoguo, they were basically sure that the welding of the welding specimens would be successful.

They know Zhang Yi very well and have full confidence.

However, after coming over, their expressions became different. The smile on their faces became restrained. Sun Baoguo asked in a deep voice: "What's going on?"

Zhang Yi was holding the checked order in his hand, and his face looked a little bad. When facing Sun Baoguo's inquiry, he handed over the order, "Mr. Sun, take a look."

After taking the order, Sun Baoguo frowned slightly. After reading it, he sighed softly, "You all take a look. The welding is not qualified and there are microcracks in the weld."

What!

Everyone was shocked!

How could the welding of specimens that was originally very confident become like this?

Yang Fan was silent for a while, and his worries were finally verified. The welding performance of this new steel grade was poor, and even the most experienced welder fell into this.

This list is passed on between the chief, deputy director and several supervisors of the welding workshop, as if the weight is getting bigger and heavier.

How could this happen?

The weld is so beautiful, how can there be microcracks???

No one can understand, including those technicians in charge of welding.

There was a silence on the scene.

After a long time, Yang Fan broke this silence and suggested: "Mr. Sun, try welding another test piece and adjust the welding parameters appropriately."

That's all.

Sun Baoguo nodded, agreed with Yang Fan's suggestion, and said, "Zhang Yi, try again and strive to pass the welding this time."

"Okay, I'll give it another try."

Zhang Yi replied, and then began to prepare for the second welding. During the first welding, he looked relaxed and thought that this was a pediatric department. The second welding was obviously different. He looked much more serious and serious, and he was meticulously doing the relevant preparations.

The arc flashed again, emitting a dazzling light.

Zhang Yi re-welded a test piece. After the welding was completed, he did not feel any relief. He felt that it seemed to be similar compared to the last time.

Everyone came over and looked at the weld that was still hot. It was still very beautiful, and it was a typical fish scale welding. Some people thought to themselves that if the inspection is qualified, there is no problem, this is definitely one of the most beautiful welds.

"How is it?"

Sun Baoguo first asked, he was concerned about the welding results and hoped to succeed, so that it would not affect subsequent segmented welding, otherwise...

No, no...

Constantly comforting himself, Sun Baoguo said in his heart that if even Zhang Yi cannot complete the welding task, then the others will not be enough.

However, Zhang Yi's answer made Sun Baoguo's heart sink slightly, and the face of the welding workshop director also changed slightly.

Zhang Yi shook his head gently and said, "It feels like it is similar to last time. I found that my welding experience seems to be unsatisfied. There wouldn't be such a problem before."

What!

Your welding experience is not effective!

This is not a good situation!

Everyone's mood became a little heavier, and pessimism even began to emerge.

Yang Fan reminded: "Don't be too anxious. This is the welding of the second test piece. Even if it fails, it's nothing. When Donghai Shipyard welded the test piece of the Type 052 missile destroyer, hundreds of test pieces were welded, which took more than ten days."

Oh my god!

The two young technicians next to them were stunned. They didn't know that the welding of the 052 test piece was so difficult.

It's so difficult!

Yang Fan continued: "The steel plates on our 054 ship have more alloy elements than those on the 052 ship, thinner steel plates and worse weldability. Try a few more times, I firmly believe you will succeed."

Perhaps Yang Fan's encouragement played a role, and everyone was in a better mood. Sun Baoguo even said loudly: "No matter what, the second test piece will be sent to the laboratory for inspection immediately, and then we will talk about it after checking the situation."

The second test piece was immediately sent to the laboratory. Not long after, the result came out, but it still failed and had microcracks.

The scene was silent.

No one speaks anymore.

Yang Fan encouraged: "It's okay, failure is the mother of success. Summarize experience from every welding and continue to test welding, and you will definitely succeed."

Then he turned to Sun Baoguo Highway: "Mr. Sun, it seems that you need to prepare more welding specimens. In addition, all the supervisor-level technicians related to welding will come to the scene. Three cobblers are the one Zhuge Liang. The collective wisdom will definitely solve this problem."

"Okay, I'll arrange it right away."

.........

Today's third update, the first update is here!
Chapter completed!