Feng Xiaochen was also full of curiosity about Zhang Heping. The purchaser www.biquge.info the pen "Fun" Pavilion is really enthusiastic, or he likes to join in the fun. I got out of the car and ran all the way to see the accident scene, which can be interpreted as a gossip heart, and then I was busy looking for experts and skilled workers, but I was too enthusiastic. Of course, if you compare Feng Xiaochen's own actions, it seems that Zhang Heping's performance is not too eye-catching, so he doesn't want one or two Lei Feng from the buyers?

Professor Bao, Deputy Chief Engineer Cao and others are also a little famous in their respective circles, and after chatting with Li Guoxing and Shang Jinglun, they found some people who knew each other, and then they were familiar with each other in a few words. Everyone didn't dare to delay, and hurriedly came to the clamp car, met with Quan Jiancai and Wang Zhihua, and began to analyze the force of the arm, and on this basis, agreed on the emergency repair plan.

With these more professional people making a move, Feng Xiaochen was idle instead. However, everyone has faintly regarded him as the backbone, and everything must be discussed with him, and no one will treat him as a dispensable young man anymore.

"We have just done a rough calculation that it is completely feasible to repair the arm by welding. If nothing else, the repaired clamp truck can even transport the stator all the way to the Hezhou power plant, and then carry out a thorough overhaul after the stator is unloaded to replace the damaged arm. ”

Li Guoxing came to Feng Xiaochen's side and happily reported the results to him. Professor Bao of the Department of Mechanics of Northwest University, an authority on mechanics, directly made a stress model on the spot, pulled everyone to calculate for a long time, and came to the conclusion that the clamp car can fully withstand the impact of the stator. Deputy Chief Engineer Cao of Jiangcheng Iron and Steel Plant analyzed the cause of the fracture of the arm steel plate from the perspective of metal materials, and believed that it was just an accidental accident, which was roughly related to the defects of the steel plate when forging.

The crowd also determined the emergency repair plan on the spot, that is, welding at the fracture of the arm, and then repairing some stiffeners in several other places. However, considering the extraordinary pressure on the arm, the welding process also needs to be considered.

After this time, Tian Xing and others, who left the scene to look for equipment, also returned, bringing a few tractors borrowed from the surrounding communes, and several electric welding machines were loaded in the trailers, as well as gas welding equipment such as oxygen cylinders and acetylene generators. He also brought several electricians, dragging long cable lines, and I don't know from which unit they were pulled. The two representatives of the railway army found a unit next to them and brought an emergency telephone line, so that the people on the scene could directly call and contact their respective leaders.

The Ministry of Machinery and the Ministry of Electric Power finally got the news, and they urgently went to the Ministry of Railways to discuss emergency matters. After discussion, the Ministry of Railways agreed to give 48 hours of emergency repair time, if the clamp car could not be repaired within the specified time, then the stator could only be unloaded, so that the clamp car could be driven away and the operation order of the Jinglong Line could be restored.

The three ministries and commissions also agreed to immediately form a joint investigation team to rush to the scene to investigate the cause of the accident and determine the responsible party. The Ministry of Railways suspected that the Longshan Electric Factory had concealed the true weight of the stator, resulting in the clamping car hydraulic rod arm being overloaded, resulting in damage to the arm. The Ministry of Machinery and the Ministry of Electricity insisted that there was no problem with the weight of the stator, and that the problem was that there were hidden quality hazards in the transport vehicles of the railway department.

Of course, all these nonsense things can only be said later, and emergency repair is the top priority.

Li Guoxing reported to the Ministry of Machinery through the army's emergency telephone line the emergency repair plan discussed by everyone. The Ministry of Machinery organized experts to discuss, and finally agreed to repair it according to the plan determined on the spot, and at the same time sent an expert group to carry flaw detection equipment to support. However, the team will not be able to arrive at the scene until the next day at the earliest, so it will have to start work first.

"Master Li, look at what we should do. ”

Feng Xiaochen accompanied an old worker who came to help to climb onto the clamping cart and began to discuss the welding plan. This old worker's name is Li Qingshan, and he is an eighth-level riveter at the Tongyuan Boiler Factory in Songjiang Province. Some of the experts are mechanical, some are metallic, and of course more mechanical, they are able to calculate the force and think that the damaged parts can be repaired by welding. But when it comes to how to proceed, you have to listen to the opinions of these riveters and welders.

Riveter, also known as cold worker, or sheet metal worker, is a type of work that specializes in the production of metal structures. Although they are called riveters, their skills are not limited to riveting work, but also include welding, bolting, etc., and they have a variety of skills such as welders and fitters. In fact, electric welding can also be called hot riveting, so there is a saying that "riveting welding is not separated".

The riveter is not a simple operator, but a conductor in the production of metal structures. They are responsible for lofting and blanking according to the drawings, and then organizing other types of work to carry out installation operations. There is an old saying in the factory, called "the riveter should be old, the welder should be young", which means that the riveter needs to have a lot of experience, and the older he is, the more valuable he is, and the welder needs to have good physical strength, good eyesight, and carefulness, so the younger the more capable. Of course, the latter sentence does not mean that welders do not need to accumulate skills, but only that young welders have an advantage over older welders at the same level of technology.

This time, Li Qingshan took three apprentices to the capital to participate in the welder competition organized by several ministries and commissions, and happened to get on this train. Hearing that there was an accident in front of him and that he needed to recruit excellent welders to participate in the emergency repair, Li Qingshan brought his apprentices over with Zhang Heping.

"Oops, how can it crack so badly. ”

Li Qingshan squatted in front of the crack, looked at the broken steel plate, and sighed.

"yes, the 100-thick steel plate has been torn, how heavy this thing must be!" another welder, who had climbed up to the clamp truck, also smacked his tongue. His name is Wang Jianguo, and he claims to be a worker in a machinery factory in Shanbei Province, 26 years old this year, but he is already a fifth-level welder, and he is well-known in the mechanical system of Shanbei Province. Coincidentally, he also went to the capital to participate in the welder competition this time, and when he heard the notice on the train radio, he came to help.

"I heard that it weighs more than 300 tons, and it takes a lot of strength to flip it casually. Li Qingshan said.

"But that's okay, just re-solder. Last time, the girder of the gymnasium in our province cracked, and I went to weld it, and now there is nothing at all. That's why I got a young commando in the province. Wang Jianguo said with a little ostentation.

Feng Xiaochen glanced at Wang Jianguo and asked, "Master Wang, in your opinion, how should we weld?"

Wang Jianguo gestured with his hand and said, "From here to here, open two grooves and weld them with No. 506 electrode." Then vertically open four longitudinal grooves on both sides, the depth and width are about 15, 200 long, embedded into 14 steel bars, and then do sealing welding. Last time, I welded the girders of our provincial gymnasium, and that's what I did, and I gave several professors from the Provincial Institute of Engineering to the town. ”

In just a while, he has already said twice about welding the stadium beams, and it is estimated that this is the most brilliant thing he has ever done in his life. Feng Xiaochen listened to him show off, and felt a little unhappy, but he couldn't say what the reason was. Think about it, welding the girder of the gymnasium, this kind of thing can fall to him, a young foreman who is only 26 years old, which also shows that he really has a few brushes, even if he takes it out to brag, others can't say anything.

"Master Li, what do you think?" Feng Xiaochen turned to Li Qingshan again and asked.

Li Qingshan frowned slightly and said, "The method that Xiao Wang said, we call it buried rib riveting, is indeed a good way. But I always felt that there was something wrong with this rift. ”

"What's wrong?" Without waiting for Feng Xiaochen to speak, Wang Jianguo rushed to ask first. He just said a good idea, but Li Qingshan came to a "but", which made Wang Jianguo a little unhappy.

Li Qingshan didn't care too much about Wang Jianguo's attitude, but pointed to the crack and said to Feng Xiaochen and Wang Jianguo: "Director Feng, Master Wang, come and see, this crack is split left and right, but the crack is not a neat crack, but it is split from each other. I pondered that when the train moves, it moves and stops, and this force is backward and forward, not left and right. If, as Master Wang said, bury stiffeners on both sides of the crack, and prevent the left and right forces, rather than the front and rear forces, I am worried that after this repair welding, it will not play a big role. ”

Li Qingshan previously called Wang Jianguo Xiao Wang, but after he choked a sentence, he changed his name to Master Wang, Feng Xiaochen can feel the taste of this, as for whether Wang Jianguo feels it, it is difficult to say. However, the question raised by Li Qingshan made Feng Xiaochen feel that there was some truth.

In the process of stator transportation, the force of the hydraulic rod arm is along the direction of the train, although the tear of the steel plate is in the left and right direction, that is, perpendicular to the direction of the force, it does not mean that it is a vertical force to tear the steel plate. Wang Jianguo's proposal was to use eight steel bars to connect the steel plates at both ends of the crack, which was obviously the wrong direction of strengthening.

"Master Li, I think you're overly worried. Wang Jianguo said, "When I welded the girder of our provincial gymnasium, there was also an expert who said that the direction of the force was wrong, but other experts did not have this opinion." As it turned out later, welding like this was no problem. You can't imagine how much force you can pull when eight steel bars are buried in it?"

"This was not originally conceived, but calculated. Feng Xiaochen replied to Wang Jianguo coldly. Nima, you're a talker, you can't say anything without mentioning the beams of your bullshit gymnasium, right?

Li Qingshan glanced at Feng Xiaochen, as if he was related to Feng Xiaochen. However, he didn't bother with Wang Jianguo, but turned his head and shouted under the car: "Xiaodi, come up and take a look, I can't see this place for sure." (To be continued.) )