Tetsuya Tatsuya and Yu Uchida rushed over after receiving the news. Naohiro Iwasaki handed the test report left by Du Xiaodi to Tetsuya Taka, who only read a short paragraph, and then sat down dejectedly:

"How is it possible, it is actually the composition of the steel that is wrong!"

In the past few days, Tian Xiongzhe and his friends have also guessed the causes of various accidents, and have also repeatedly verified, but there is one aspect that they have not questioned, that is, the problem of the steel itself. According to the design, the base of the fractionation column is made of No. 40 chromium-molybdenum structural steel, which is produced by Sendo Steel in Japan and is widely used in various steel structures, and has also been used in many of Iketani's past projects.

Sendo Steel is one of Japan's largest steel companies with a history of 90 years and is well-known in Japan and around the world. Tian Xiongzhe never doubted that there would be any quality problems with the steel produced by Xiando Steel, and when he carried out the structural design, he calculated the structural force in full accordance with the material composition and technical indicators provided by Xiando Steel. These days, he and his friends have calculated the model over and over again, and all the parameters have been checked repeatedly, only the technical data of the steel, they have never doubted.

However, the report in front of me claims that there is a serious difference between the steel composition of the base of the fractionation column and the No. 40 chromium-molybdenum structural steel claimed by Xiando Steel, in which the chromium content is one-third lower, and the specific gravity of molybdenum, titanium, manganese, vanadium and the like is also different, and all of them are low. As for what this means, Tian Xiongzhe's heart is as clear as a mirror.

Compared with ordinary steel, special steel has more alloying elements contained in steel. Alloying elements are much more expensive than iron, so the higher the proportion of alloying elements, the higher the price of steel. If a steel claims to contain 1% chromium, when in fact it contains only 0.7%, then its price is inflated, and at the same time, its properties are bound to fall short of the specified requirements.

The most important thing is that the type of steel and the solder used in welding are matched to each other, and the base welding process of the fractionation column requires the use of No. 74 welding wire, which is because the base is made of No. 40 chromium-molybdenum steel. If the ratio of various alloying elements in the steel is different from that of chromium-molybdenum steel No. 40, then the choice of welding wire must also be changed accordingly, otherwise the optimal welding effect cannot be achieved.

There are two reasons for the pouring of the fractionation column, one is that the force exceeds the design strength of the base, and the other is that the strength of the base does not meet the design requirements. These days, Tian Xiongzhe has also done a lot of calculations, and determined that under the conditions of greater wind, the force on the base of the fractionation column will not be higher than the design strength, so the reason can only be checked from the latter one.

The weld crack of the base under the stress condition indicates that the strength of the weld is insufficient. Tian Xiongzhe also suspected that the workers had made a mistake in operation, or had used the wrong welding wire, but he never expected that the problem was that the steel composition was wrong, and the chromium-molybdenum content of the No. 40 chromium-molybdenum steel was not enough.

Tian Xiongzhe has also been troubled by this question for many days, and all kinds of data have been engraved in his mind. As soon as he looked at the analysis report, he realized that it was true because it perfectly explained the problems he was experiencing. If you follow the data on the report, then the results are exactly in line with reality.

"Could it be that the steel was used incorrectly?" asked Yu Uchida.

"It's not possible, all the plates have rubbings on them, and they have to be checked before cutting. Naohiro Iwasaki categorically denied that the base of the fractionation column was built on the construction site, and if the steel was used incorrectly, it meant that it was his pot.

Tian Xiongzhe also shook his head and said: "We have also taken this issue into account, and we have specifically checked the discharging records of the steel during the investigation, and the model is not wrong." ”

"So,...... Could it be that there is a problem with the steel of the Sendo Works?" Uchida's face turned a little pale, which was a very appalling conjecture.

"It's impossible, Sendo Steel...... How could such a mistake occur?" Naohiro Iwasaki also thought that Uchida's speculation was too bizarre. Who doesn't know that Sendo Steel is a golden sign in Japan, and the Sendo logo on the steel is almost a guarantee of quality. Anyone who works in industry in Japan would rather doubt that the rice balls they eat at noon are actually gnocchi instead of rice, and they would never suspect that the steel in Xiando would have quality problems.

"So, is there something wrong with this report?" Uchida added, "maybe the Chinese just used a fake report to trick us into making it clear for them." ”

Tian Xiongzhe also said: "This is not possible, it is very easy for us to do a test, as long as we go to the site to take a sample...... In this case, I will ask the assistant to do a test of the steel composition and see the results. If it's really something wrong with Sendo's steel, then ...... That's a big deal. ”

At the same time, in a hotel in Perrault City, Du Xiaodi was reporting to Feng Xiaochen about his negotiations with Naohiro Iwasaki. Feng Xiaochen arrived in a hurry only yesterday, and the newspapers that Du Xiaodi took to ask Iwasaki Naohiro Xingshi for his guilt were also handed to Du Xiaodi after he translated them.

It turned out that after Du Xiaodi and Wang Ruidong left the capital, Feng Xiaochen received a briefing from the foreign affairs department, saying that the local newspaper in Mexico was slandering the level of Chinese skilled workers. After Feng Xiaochen saw the faxes of these newspapers, he realized that his guess had been fulfilled, and the Japanese were really planting the blame. Later, Du Xiaodi, who had already arrived in Mexico, called and reported that he had found that the steel used by the Japanese was not of the right composition, and he wondered if he had made a mistake when he did the test.

"Haha, that's right!" Feng Xiaochen burst out laughing on the phone. In this era, the whole world is believing in Japanese mythology, and who would have thought that more than 20 years later, so many scandals of Japanese companies would break out. According to the situation disclosed by later generations, the falsification of steel data by Xiando Steel has been happening for several years at this time, but under the fame, no one will question this aspect. That is, the experienced Du Xiaodi can guess the difference in the composition of the steel with the slightest color difference, so he specially found a place to test it. How could anyone else have thought of this?

"You mean, there is really a problem with Xianhu's steel?" Du Xiaodi was also stunned when he heard Feng Xiaochen's words. She is a welder and has been trained in Japan, so she is naturally very familiar with the name of the Sendo Steel Works. At a time when "Made in Japan" is in full swing, it is too subversive for her to suspect that there is a problem with Japanese steel.

"Believe in your test results, this time the problem is indeed a steel problem!" Feng Xiaochen said.

"Well, I'll keep them informed of the situation. ”

"Don't be busy...... Feng Xiaochen had a flash of inspiration in his mind, and hurriedly ordered: "Xiaodi, don't make a noise first, wait for me to come over." ”

"What?

"That's right, it's an opportunity, and it would be a shame not to take advantage of it!"

Feng Xiaochen said that he would leave, and he urgently applied for a visa through the relationship of the Ministry of Foreign Affairs, and also rushed to Mexico through the United States. When he arrived in Perrault, he managed to find the newspapers that had denigrated the Chinese workers the other day, translated them, and gave them to Du Xiaodi, where he gave her such and such instructions, and then waited in the hotel to see the rest of the show. Of course, at the end of this scene, he, the chief director, is going to make a cameo role.

"Xiaochen, how can you be sure that there will be problems with Japanese steel?"

After Du Xiaodi reported the situation, he still asked Feng Xiaochen with some apprehension. She tested the steel four or five times repeatedly, and only then did she issue a test report when it was foolproof. But Rao still felt that she might have made a mistake somewhere, for no other reason, that is, how could the Japanese be wrong?

"Why can't the Japanese make mistakes?" Feng Xiaochen asked rhetorically.

"Because ......" Du Xiaodi was speechless, isn't this an obvious thing, how delicate the Japanese are, how dedicated the Japanese are, how Japanese ...... How reverent it is to bow down.

Feng Xiaochen said with a smile: "Xiaodi, in fact, Japanese people are also human beings, and if they are human, they will make mistakes. However, the Japanese are different from others in that the country is located on an earthquake-prone island, and has developed a national character that is extremely pessimistic and full of a sense of crisis. This kind of personality makes them afraid to face up to their mistakes, once they make mistakes, their first reaction is to conceal them, and then to pass the buck, and when they can't do it, they will try to avoid it in extreme ways. ”

"Well, that kind of meant. ”

Du Xiaodi thinks of his days in Japan, and feels that the Japanese around him are indeed a bit like Feng Xiaochen described.

"At a time when the Japanese economy is facing a turning point, the consequences of the Plaza Accord are beginning to show, and the whole of Japanese society is coming to a standstill, it is all too normal for widespread fraud to occur at this time. If I'm not mistaken, even if Iketani was aware of the quality of the steel, it would have chosen to keep it silent and not make it public. Because once the problems of Sendo Steel are exposed, the quality of the work that Iketani has done before will also be questioned, and it is not a loss they can afford. Feng Xiaochen analyzed.

Du Xiaodi said: "Then are we going to publish this report?"

"Of course it can't be announced. Feng Xiaochen said, seeing Du Xiaodi's surprised look, he smiled and said: "What does it matter to us that the Japanese have made fake pits to harm the Mexicans? If the Japanese want to hide their ugliness, I will fulfill them, but well, the hush money must be calculated carefully. ”

"Xiaochen, you're too insidious!" Du Xiaodi rebuked, half angry.