Listening to Wang Jianguo squatting in the car and talking about his master, Du Xiaodi, an 18-year-old female welder at Tongyuan Boiler Factory, was already so angry that she was dizzy under the car. Pen, Fun, Pavilion www.biquge.info she is one of the three apprentices that Li Qingshan took to the capital to participate in the welder competition, and the other two are male workers and are older, so they are Du Xiaodi's senior brothers.

When everyone came all the way from the bus just now, this Wang Jianguo gathered around a few of them to talk loudly, showing how capable he was, and also "Xiaodi" and "Xiaodi" accosted her for a short time, one would say that he would invite her to go horseback riding in Shanbei Province, and one would say that he could teach her a few tricks of electric welding if he had the opportunity, and two of the three sentences were talking about the of the gymnasium beam.

Feng Xiaochen didn't hear the words in front of him, and he didn't know what was going on with the gymnasium girder. Du Xiaodi and Li Qingshan already knew that it was actually an ordinary steel beam, and the load-bearing capacity was dozens of tons. As for saying that the province only picked Wang Jianguo to weld this steel beam, on the one hand, Wang Jianguo does have some technology, not in vain, on the other hand, because Shanbei Province itself is only a province dominated by agriculture and animal husbandry, and the number of industrial enterprises under the province, prefecture and county levels in the province is not as large as that of Tongyuan City. Wang Jianguo was able to feel that Lao Tzu was the first in the world in Shanbei Province, and it was because there were no tigers in the mountains.

The reason why Wang Jianguo showed off his talent in front of Du Xiaodi and his entourage, Du Xiaodi and her senior brothers Gao Liqian and Liu Xiong were like mirrors in their hearts, that is, because Du Xiaodi was beautiful and lovely, this Wang Jianguo must have a bad heart. Just now, Gao Liqian and Liu Xiong stood under the car, squinting at Wang Jianguo, and whispered about cutting this kid into several pieces to relieve their hatred, and they had even discussed whether to use a shears or directly do gas cutting, the only thing that was uncertain was that Ya's face was so thick, whether it could be cut with ordinary equipment.

Hearing the master's call, Du Xiaodi hurriedly stepped forward, jumped lightly, and jumped on the clamp car. When Wang Jianguo saw the beauty coming up, his heart blossomed, and he hurriedly gave up a position, wanting Du Xiaodi to squat beside him. How could Du Xiaodi be willing to get together with him, and squeezed directly between Li Qingshan and Feng Xiaochen, but he didn't expect that this would happen to be face-to-face with Wang Jianguo. The two thieves' glances were almost glued to her face, making her feel as disgusting as if she had been dripping with bird droppings.

"Xiaodi, look at it, does this crack look like the one at the Yuema River Bridge?" Li Qingshan didn't notice Wang Jianguo's performance, he pointed to the crack and said to Du Xiaodi.

Du Xiaodi hurriedly glared at Wang Jianguo opposite, then took out a magnifying glass from a tool bag on his back, stepped forward to take a closer look at the parts of the crack, nodded and said: "I think it's quite similar, you see, this is the kind of sheet structure that Professor Cai said." ”

"What do you mean?" Feng Xiaochen asked.

Du Xiaodi turned his head to look at Feng Xiaochen, then looked back at Li Qingshan, not knowing whether to explain to Feng Xiaochen. Li Qingshan said: "Director Feng is a technical expert, you tell him about the situation last time, and let him help confirm it." I don't quite remember what Professor Cai said, if you have a good memory, just talk about it. ”

"Well, okay. Du Xiaodi obviously respected her master, she turned her head, pointed to the crack, and said to Feng Xiaochen: "Director Feng, if you look at the fracture of the metal on this crack, can you see that there is a longitudinal patterned crack? This kind of cracking is called lamellar tearing, that is, this steel plate is actually stacked layer by layer, and the stator behind it rushes forward, and the steel plate is torn into several layers, because each layer is not as thick as the original, and it can't bear the force, so it will be broken and become like this." ”

"Xiaodi, you're talking nonsense, aren't you? This is obviously a whole piece of steel, is it good, how can there be layer by layer?" Wang Jianguo said.

Everyone ignored him, Feng Xiaochen took the magnifying glass in Du Xiaodi's hand, carefully identified it, nodded and said: "I feel a little bit like this, I think it's better to ask Chief Engineer Cao to come up and take a look, he is an expert in metal materials, and he must know this better." ”

Feng Xiaochen was referring to Cao Guangshan, the deputy chief engineer of the Jiangcheng Iron and Steel Plant, who had already conducted a visual inspection of the crack on the car just now, and judged that there might be a defect in the forging process. Hearing Feng Xiaochen shouting at him, he got into the car along the iron ladder next to the car and came to the cracked arm.

With such a small area, it is difficult to squat more people. Feng Xiaochen handed Wang Jianguo a gesture look, Wang Jianguo was stunned for a moment, and finally reluctantly stood up and gave up his position to Cao Guangshan. Feng Xiaochen introduced himself to everyone just now, and Wang Jianguo knew that he was the deputy director of a large enterprise, and he was a little timid. He can not take an eighth-level worker like Li Qingshan in his eyes, but he doesn't dare to provoke a powerful person like Feng Xiaochen, which can be regarded as a manifestation of the people's refusal to fight with the officials.

"I've heard of this as a lamellar tear, but I haven't seen it specifically. Little master, who did you listen to this concept?" Cao Guangshan asked Du Xiaodi after looking at the rift with a magnifying glass.

Du Xiaodi said: "It was Professor Cai of Beijing University of Technology who said it, and I don't understand it." ”

"Professor Cai, Professor Cai Xingquan?" Cao Guangshan asked.

"Yes, that's him. Du Xiaodi said.

"Do you know him?" asked Cao Guangshan in surprise. This Professor Cai Xingquan is well-known in the field of metal materials, Cao Guangshan has dealt with him a few times, and he is not familiar with him, but he admires his talent and learning. Now that he heard that the little girl in front of him actually knew Cai Xingquan, he couldn't help but feel a little strange.

Li Qingshan said beside him: "Last year, there was a dangerous situation on a Yuema River bridge in our province, and the steel beam was cracked, so I took Xiaodi and a few of them to participate in the emergency repair. At that time, the province invited Professor Cai to do the analysis, and the lamellar tear was what he said. ”

"I see, I know about it. Cao Guangshan had a surprised expression on his face and said, "The rescue of the Yuema River Bridge is a very legendary thing in our industry." The use of welding to repair the steel structure of a heavy-duty bridge is a pioneering achievement. By the way, I still remember that the person in charge of the welding of the steel beams at that time was a female worker under the age of 20, could it be you?"

Speaking of this, he looked at Du Xiaodi, his eyes full of appreciation.

Du Xiaodi, who was still talking just now, suddenly became stunned, and a blush passed over her face, she lowered her head and said: "Originally, the province invited my master to weld, but the space under the bridge was too small, and my master and my two brothers couldn't get in, only I could get in, so I let me go." ”

"Amazing, amazing! Heavy-duty bridge, I heard that it is still back-welding, you are such a little girl...... Tsk, Master Li, you are really a famous teacher and a high apprentice!" Cao Guangshan praised repeatedly. The layman looks at the excitement, the insider looks at the doorway, how difficult a thing is, the layman may not be able to see it, but the people in the circle know it. Cao Guangshan did not personally participate in the rescue of the Yuema River Bridge, but he heard some technical details from his peers in the industry and could imagine the difficulty.

Feng Xiaochen couldn't help but turn his head to look at Wang Jianguo, and saw that the muscles on his face were already a little stiff, and the eyes that were still burning like fire just now staring at other people's sister paper suddenly became dull.

What is called a face-to-face slap, this is called a face-to-face slap!

He just bragged to others all the way that he had welded the steel beams of a gymnasium, and kept saying that he wanted to teach Du Xiaodi a few tricks, but he didn't know that people played more than ten times more than ten times more than him. Welding the steel girders of the bridge that pass through the heavy-haul train, even the deputy chief engineer of the Jiangcheng Iron and Steel Plant is amazed by his technology.

The most important thing is that she is a lesbian, and she is seven or eight years younger than him. Seven or eight years back, he Wang Jianguo has just started to enter the factory to learn electric welding, but the little girls are already able to take charge of themselves.

After Cao Guangshan sighed, he returned to the original topic, and he asked, "Has Professor Cai said in detail what this lamellar tear is all about?"

Du Xiaodi said: "He said it. Listen to him say that this lamellar tear has rarely been studied in the past because it occurs much less often than other cracks. He said that the International Welding Society has been doing case studies since the early 70s, and as of last year only 22 cases had been counted. He said that the reason for this is that the cast steel ingots are mixed with bubbles or other impurities, which will be pressed into strips when the steel is rolled, resulting in interlayers in the material. The steel rolled out in this way looks like a single piece, but in fact it is a layer-by-layer structure. ”

Cao Guangshan himself is engaged in steel, and he understood what was going on as soon as he heard it. Du Xiaodi's account is a little inaccurate, it is estimated that he did not understand Cai Xingquan's explanation too much, or it may be that Cai Xingquan deliberately said it in a more popular way when he explained. Cao Guangshan knew the principle of it as soon as he analyzed it based on his own knowledge, and he nodded again and again: "It makes sense, it makes sense, judging from the shape of the crack, it does conform to this kind of lamellar tear." So, Xiao Du, is the same for the situation of the Yuema River Bridge last time?"

"That's it. Du Xiaodi replied.

"In other words, your last repair plan can be used for this time?" Cao Guangshan said again.

The forces on the railway bridge will not be less than the current hydraulic rod arm, and the vibration generated by the train passing at high speed will be much greater than the vibration of the clamp car running smoothly at 40 kilometers per hour. In addition, the restoration of the Yuema River Bridge is to be used for a long time, and this time the repair of the clamp truck only needs to cope with the next few hundred kilometers of transportation. If the last repair plan is feasible, then this time it should be no problem. (To be continued.) )