I welded the main beam of the Provincial Gymnasium
Chapter 146:I welded the main beam of the Provincial Gymnasium
Feng Xiaochen was also full of curiosity about Zhang Heping.The buyer was also very enthusiastic, or liked to be very busy.Before getting out of the car to see the scene of the accident, but also can explain the heart of gossip, and then busy before and after the busy to find experts and technical workers, but it is too enthusiastic.Of course, if you compare Feng Xiaochen's own actions, as if Zhang's performance is not too eye-catching, there are no more Lei Fengs in the purchaser?
Professor Bao, Cao Vice President and others are also a little famous in their respective circles, and Li Guoxing, Shang Jinglun they chatted a few words, found some people who know each other, and then three words or two words are familiar.We did not dare to delay, rushed to the clamp truck, and the whole building, Wang Zhihua will join, began to analyze the force of the arm, on the basis of the agreement to repair the plan.
With these more professional people, Feng Xiaochen was idle.However, everyone has hidden him as the heart of the Lord, and everything must be held to discuss him, and no one will regard him as a disconcerted little young man.
"We have just roughly calculated 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 and state power plant, and then completely overhaul the stator truck after a thorough overhaul to replace the damaged arm.”
Li Guoxing came to Feng Xiaochen and reported the results to him.The professor of mechanics at Northwestern University, a mechanical authority, made a stress model directly on the spot, pulled the crowd to calculate for half a day, and concluded that the clamping car was fully capable of bearing the impact of the stator.Jiangcheng Iron and Steel Plant's deputy chief engineer from the perspective of metal materials, analyzed the reason for the break of the support arm steel plate, that this is just an accidental accident, roughly related to the defects when the steel plate is forged, as for what is the specific defect, it can only wait to use the flaw detection equipment to detect.
The crowd also determined the repair plan at the scene, that is, welding at the break of the arm, and then weld some reinforcement reinforcement in several other places.However, considering that the pressure on the arm is extraordinary, the problems of the welding process should also be considered.
This will work hard, leaving the scene to find equipment Tian Xing and others also came back, with a few tractors borrowed from the surrounding communes, a few electric welding machines, as well as oxygen cylinders, acetylene generators and other gas welding equipment.He also brought in several electricians, towed long cable lines, and did not know which unit was drawn from.The two railway representatives found a unit next to them and pulled an emergency telephone line so that people at the scene could call directly to contact their respective leaders.
The Ministry of Machinery and the Ministry of Electricity 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 repair time, if it is impossible to repair the clamp truck within the specified time, then only the stator can be removed, in order to drive the clamp truck away, restore the operation order of the Jinglong line.
The three ministries and commissions also agreed to immediately form a joint investigation team 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 concealed the true weight of the stator, causing the clamping truck hydraulic rod support arm to be overloaded, causing damage to the support arm.The Ministry of Machinery and the Ministry of Electricity insist that the weight of the stator is no problem, and the problem is that there is a hidden quality hazard in the transportation vehicles in the railway department.
Of course, all these things can only be said later, and repair is the top priority.
Through the emergency telephone line of the army, Li Guoxing reported the repair plan that everyone discussed to the Ministry of Machinery.The Ministry of Machinery organized experts to discuss, and finally agreed to repair it according to the plan determined on the spot, and sent a team of experts to carry flaw detection equipment to support.However, the expert group can only arrive at the scene as soon as the next day, and this side can only start working first.
“Master Li, look at what we should do.”
Feng Xiaochen accompanied an old worker who came to help climbed into the clamp truck and began to discuss the welding plan.The old worker, Li Qingshan, is an eight-level rivetist at Tongyuan Boiler Factory in Songjiang Province.Experts have studied mechanics, some study of metal materials, of course, more mechanical, they can calculate the force, and think that through welding can repair the damaged parts.But specific to how to operate, but also to listen to the opinions of these riveters and welders.
Rivet is also called cold work, or sheet metalworking, is a type of work that specializes in the production of metal structure.Although called riveting, their technology is not limited to riveting operations, but also includes welding, bolting and other means, both with welders, fitter and other skills.In fact, welding can also be called hot riveting, so there is a saying that "rive welding does not divide home".
Rivet is not a simple operator, but a conductor in the production of metal structures.They are responsible for the drawing of samples, unheading, and then organize other jobs for installation.In the factory there is an old saying, called "rivegongs to be old, welders to be small", which means that riveters need to have a wealth of experience, the older the older, the more valuable; and welders need good physical strength, good eyes, careful, so the younger the more capable.Of course, the latter sentence does not mean that welders do not need technical accumulation, but that under the same technical level, young welders have more advantages than older welders.
This time, Li Qingshan took three apprentices to Beijing to participate in the welder competition organized by several ministries and commissions, just got on this train.I heard that there was an accident in front of me, and it was necessary to recruit excellent welders to participate in the repair, and Li Qingshan came with his apprentices and Zhang Heping.
“Oh, how could it be so hard to break.”
Li Qingshan squatted in front of the crack, looking at the broken steel plate, chirping.
"Yes, 100 thick steel plates have been torn, this thing has to weigh!"Another welder who followed the clipper to the clamping car also shivered.His name is Wang Jianguo, claiming to be a worker in a mechanical factory in Shanbei Province, 26 years old, but he is already a five-level welder, and has a small name in the mechanical system of Shanbei Province.Coincidentally, he also went to Beijing to participate in the welder competition, heard the notice in the train radio, and ran to help.
"I heard that it is more than 300 tons, and the strength of any bump is not small."Li Qingshan Road.
"But it doesn't matter, it's just re-welding."The last time the beams of our provincial gymnasium cracked, it was I who went to weld, and now there is nothing.That's why I got a young raider in the province."Wang Jianguo said with some ostentation.
Feng Xiaochen looked at Wang Jianguo and asked, “Master Wang, in your opinion, how should weer?”
Wang Jianguo stroked his hand and said, “From this to this, open two slopes and welded with a 506 electrode.”Then stand on both sides of each side to open four vertical groove, deep and wide each is about 15, 200 long, embedded in 14 steel bars, and then seal welding.The last time I wedged the beams of our provincial gymnasium, it was done that way, and several professors from the Provincial Institute of Technology had been given to the town.”
In just a few hours, he has already told the welded gymnasium girder twice, I think this is the most brilliant thing he has ever done in his life.Feng Xiaochen listened to him show off, a little unhappy in his heart, but he could not say what the reason was.Think about it, welding gymnasium beams this kind of thing, can fall on his 26-year-old young workers, also shows that he really has a few brushes, even if he takes out to brag, others can not say anything.
“Master Li, what do you think?”Feng Xiaochen turned to Li Qingshan and asked.
Li Qingshan slightly frowned and said, "Little Wang said this method, we call it buried rivets, but it is indeed a good way."But I always think there's something wrong with this crack."
“What’s wrong?”Without waiting for Feng Xiaochen to speak, Wang Jianguo first rushed to ask questions.He had just said a good idea, but Li Qingshan came to a "but", which made Wang Jianguo a little unhappy.
Li Qingshan did not care too much about Wang Jianguo's attitude, but pointed to Feng Xiaochen and Wang Jianguo and said: "Feng director, Master Wang, you see, this rift is left and right cracked, but the cracked place is not a neat seam, but each other's forking."I thought, when the train started, a stop, this strength is backward and forward, not to the left and to the right.If, as Master Wang said, the reinforcements are planted on both sides of the rift, and the strength of the left and right is guarded, rather than the strength before and after, I am worried that after welding up in this way, it will not play much role.
Li Qingshan previously called Wang Jianguo a small king, after he groaned a word, he changed to call him Wang Master, the taste of Feng Xiaochen can feel, as for Wang Jianguo whether there is a feeling, it is not easy to say.However, the question raised by Li Qingshan makes Feng Xiaochen feel some reason.
In the process of stator transportation, the force of the hydraulic rod arm is in the direction of the train, although the steel plate torn the mouth is left and right, that is, perpendicular to the direction of the force, but does not mean that a vertical force tearing the steel plate.Wang Jianguo proposed the plan to use eight steel bars to connect the steel plates at both ends of the rift, which is obviously the wrong direction of strengthening.
"Master Li, I think you are too worried."Wang Jianguo said, "When I welded the girder of the gymnasium in our province, there was also an expert who said that the force direction was not right, but other experts did not have this opinion."After the fact, it turned out that welding was no problem.Eight steel bars buried in, can pull how much force, you can certainly think out?"
"It wasn't meant to be out of the mind, it was calculated."Feng Xiaochen coldly returned to Wang Jianguo.Nima, you are a jerk, every word does not mention your bullshit gym, can't you?
Li Qingshan looked at Feng Xiaochen and seemed to have a close relationship with Feng Xiaochen's heart.However, he did not care about Wang Jianguo, but turned to the car and shouted: "Xiao Di, you come up to see, I can't see this place."(Unfinished.)
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