After going out, it was a little cold outside. After all, Sweden has a high latitude.

Everyone stood in the cold wind and stopped the taxi with their hands, but they didn't see the taxi coming for a long time.

"These people are trying to bully us. They will pick us up in a special car when they come here and leave us alone when they go back." Jin Mao said, "We have to fight for our reputation. Let's walk back and it won't feel cold anymore!"

"

Qin Tao nodded and put his coat on Zhao Ling.

"Brother Tao, I'm not cold."

"But I'm hot." Qin Tao said, "You will sweat after exercising. After saying that, he took big steps forward."

Wearing a coat that smelled of Qin Tao's body, Zhao Ling felt warm in her heart.

Everyone walked back together and looked at the streets of Sweden, which were full of exotic customs. It felt good.

"Mr. Qin, thank you for coming to help. After all, you have the most experience in dealing with foreigners." Jin Mao talked to Qin Tao as he walked.

If it is Jin Mao, he can only insist on his opinion. Even if he insists for a day, it will be in vain if the other party does not agree. However, Qin Tao has good reasons and the other party has no choice but to use delaying tactics. But tomorrow, we will bring an endoscope over.

, let’s see what else they say.

Thinking of this, Jin Mao said to Qin Tao: "Tomorrow, we need to bring an endoscope to find out the cracks. It is obviously their manufacturing defect, but now they are talking about it. In short, we are absolutely responsible for the defective propeller.

Don’t do it, otherwise it’s a crime.”

That's a warship! How can a new-generation destroyer developed by numerous scientific research units in China have serious defects in its propeller?

"There is no need to wear an endoscope tomorrow." Qin Tao said.

What? You won’t bring it tomorrow?

Looking at Jin Mao's confused eyes, Qin Tao said: "Because after driving us away, they will definitely work all night to weld and fill up the cracks. When they hand it over to us tomorrow, they will definitely not be able to find any cracks."

"What? No, we will go back immediately. We don't want the defective welded products, we want brand new ones!" Jin Mao said.

Qin Tao shook his head: "When we go back, will they let us in? They will definitely use various means to stop us."

"Then what should we do? We can't just watch foreigners fool us with defective products!"

"There is always a way." Qin Tao said: "Do they think it will be seamless after welding? After welding, the center of gravity has changed. Tomorrow we will not use an endoscope. We will directly measure the center of gravity. The center of gravity is not on the axis.

It's time for the transmission shaft to vibrate. This defect is absolutely unavoidable and they didn't say anything about it." (Actually, it's more appropriate to call it the center of mass, but the center of gravity is more general. It's a point in the gravity field anyway.)

Everyone's eyes lit up, yes, in this way, they were caught off guard!

"Brother Tao, I have a question." Zhao Ling wrapped herself in Qin Tao's warm coat and walked with everyone. She walked quickly and caught up with Qin Tao, and then she spoke.

"what is the problem?"

"Hasn't Kameva Company been manufacturing variable-pitch propellers for decades? How could such low-level errors still occur in the products they provide us?" Zhao Ling asked Qin Tao.

Hearing this question, Qin Tao's face looked a little ugly: "This, it's not difficult to guess, right?"

Zhao Ling was so smart that she understood immediately: "On purpose?"

No one will know what the other party is thinking specifically, and the other party will not say it, but this is the fact. Qin Tao had a sneer on his face: "You can't outsource a strong national defense. You can't outsource it yourself."

It is reliable, and our domestic propeller manufacturing companies should work harder and strive to manufacture our own domestic advanced propellers as soon as possible."

Qin Tao is full of confidence in this.

In later generations, CSSC Wärtsilä Propeller Company developed a new seven-axis five-linkage CNC machine tool, which marked the country's mastery of the manufacturing technology of large propellers. This machine tool can manufacture propellers with a diameter of up to 12.5 meters, which is equivalent to that of the United States.

The diameter of the propeller of the USS Nimitz is twice that of the USS Nimitz, and the weight of a single propeller exceeds 400 tons, indicating that China has reached the highest level in the world in this regard. (It seems that this company is a Sino-foreign joint venture, but it is domestic anyway.

Can produce aircraft carrier propellers for us.)

Now, we have to work hard. After we go back, we will go to the water jet propeller factory in Huating to see if we can make some progress.

the next day.

Rosenberg had a smile on his face: "Everyone, the endoscope has been prepared for you. Even if you want to use a metal flaw detector, we can also provide it. Don't worry, the propellers produced by our factory are definitely qualified.

The product, yesterday’s test, was just a small mistake.”

"We request to measure the center of gravity of the propeller." Jin Mao said, "Forget about looking for cracks."

What?

After hearing Jin Mao's words, Rosenberg's expression changed drastically: "What do you want to test?"

"Center of gravity."

"We have a test report here, and the center of gravity of the propeller has been calibrated, right on the axis. How could such important data be wrong?" Rosenberg said: "You just need to read the report."

"Look at the report? Your report didn't say that the propeller will leak oil, right?" Qin Tao said from the side: "You are such a professional company, don't you let customers who have ordered products check the center of gravity position? What are you afraid of? Shouldn't you?

Could it be that the processing accuracy is not enough?"

"How is it possible? We use the most advanced CNC machine tools in Europe for processing, and the accuracy is the highest."

"Then why don't you let us test it again?"

"We, we..."

"If you don't allow testing, then we have every reason not to purchase your product. We will also have to claim compensation." Qin Tao said, "No matter which country it is in, we will definitely win this lawsuit."

"Okay, since you insist, let's go on the machine and test it."

"Okay, this is the style of the old factory." Qin Tao said, "By the way, have your machines been debugged in advance?"

"As long as there is a trial run, the machine will automatically adjust to zero internally. The equipment we have here is the most advanced." Rosenberg said.

"That's good. To avoid having to blame the machine for not debugging if something goes wrong later, let's start quickly."

The propeller was transferred to the huge machine and then rotated. (I haven't seen it before in East China Heroes. I think it should be similar to the dynamic balance after tire repair.)

The machine started spinning, and the golden propeller looked extremely beautiful. After a few minutes, the data was displayed.

"The propeller's center of gravity deviates from the axis by three millimeters." Qin Tao looked at the data displayed above and said to Rosenberg: "You are the strongest in the propeller field, but it is actually at this level? What if this was installed on the ship?

, the drive shaft seal ring leaked on the first trip to sea!"

Three millimeters is not large compared to a propeller with a diameter of one or two meters, but it has a significant impact on ships!

The propeller is unbalanced and will vibrate during rotation. The vibration of the mobile phone is based on this principle. However, the mobile phone needs to vibrate, and the propeller cannot vibrate. The vibration will have a major impact on the ship, and even damage the bearings of the drive shaft.

If it is too heavy, the entire hull will resonate and fall apart, which is very dangerous.

"It's only three millimeters, completely within the error range," Rosenberg said.

"What? Are you a professional or an amateur? If there is no problem with three millimeters, then we will ask people in the industry to comment!" Qin Tao was annoyed.

Jin Mao couldn't sit still anymore and stood up and said: "What consequences will these three millimeters have on the warship? Let me analyze it for you now!"

After saying that, Jin Mao picked up a piece of chalk in his hand and started writing on the cement floor.

In order to prevent these guys from cheating, Jin Mao prepared chalk in advance and planned to use it to mark the propeller. Now, he finished drawing the structural diagram of the propeller on the ground and indicated various parameters.

Then, he circled the part where the center of gravity shifted and began to write various formulas. The calculations proved that this shift could even be a fatal problem.

The representatives of Kamewa Company opened their eyes wide and looked at the data analyzed by Jinmao. They would never have imagined that Orientals would actually use this method to prove it!

What else can be done?

"Friends from the East, we admit that this propeller is defective. We are willing to destroy the propellers that have been manufactured and make new propellers for you." Faced with the facts, Rosenberg finally stopped quibbles.

I know, I have no reason to say anymore.

"As an old factory that has manufactured variable pitch propellers for decades, you are supposed to strictly control quality. I hope you will learn from this experience and produce qualified propellers for us. If the next batch of propellers is still unqualified

, we will claim compensation in accordance with the contract." Qin Tao said.

It's a relief. It's a relief. A young man from the East stood in front of an old factory that has been manufacturing propellers for decades or even hundreds of years. He pointed at their technicians and said, "Your quality is not good. We must strictly control the quality in the future."

close!

Moreover, these people have not yet said that facts speak louder than words. No matter what their intentions are, if they build the propeller next time, nothing will happen again!

"We are producing a second batch of propellers as soon as possible," Rosenberg said.

Every Chinese person present felt proud and proud that the other side had finally given in and was willing to give birth to their side again!

"Tonight, please be sure to take advantage of us and dine at our king's palace."

The other party raised the standards. Yesterday they just talked about the dinner party, but today they set up the dinner at a place like this, so it was hard for everyone to refuse.

So, just go and eat after you go, no need to discuss other conditions!

"This mistake will cost us 800,000 marks. I hope you can open up and use the propellers we repaired." Sure enough, when the dinner was over, Rosenberg said.

"Didn't we already have an agreement during the day? This is private time now and we won't discuss official matters," Jin Mao said.

"Haha, you will gain wisdom after suffering a loss. Please treat this loss as tuition payment. From now on, you will strictly control the quality." Qin Tao disgusted the other party again.

Back at the hotel, Qin Tao felt very happy and called the shipyard, and then received a message.

"There is news from the north! You are invited to come over!"

Although this was a code word, Qin Tao understood it immediately.

The more chaotic the situation, the more opportunities there are. Qin Tao knows this deeply, and Nicholas also knows this.
To be continued...