In Lin Zhenhua's mind, it would take a week for Populus euphratica to calculate those curves by hand, and in this week, the tackling of key problems could only be stopped first, and everyone would be busy with their own work.

Who would have thought that only one day after Lin Zhenhua finished talking to Hu Yang about finite element analysis, Hu Yang ran to the metalworking workshop with a stack of scratch paper to find Lin Zhenhua.

"Xiaolin, I'm done, you can help me see if there is any problem." Hu Yang's tone was a little excited.

"Won't it?" Lin Zhenhua was stunned, "Lao Hu, how long have you calculated?" ”

"After you finished telling me the day before yesterday, I went home and started to forget it. I took a day off yesterday and counted it up to just now, which is about one day and two nights. Hu Yang said lightly, because he continued to stay up late, his eyes were bloodshot, and there was a smell of tobacco on his body, presumably because he had been refreshing himself with cigarettes.

"You really don't have any computing equipment, just do it purely by hand?" Lin Zhenhua looked at the results of Populus euphratica, and the more he looked at it, the more frightened he became. Although he did not check the calculations, judging from the relationship between the data and the shape of the curve, the calculation of Populus euphratica should be correct. Not only that, but he also found that Populus euphratica wrote very fluent calculations, as if he had been doing this kind of operation all year round.

Hu Yang smiled: "I'm used to it, I've counted more difficult than this." Of course, I'm not purely hand-calculated, didn't our ancestors still leave an abacus? Also, Qin Ying also helped me calculate part of it. ”

"Master Qin will also count?" Lin Zhenhua asked.

Hu Yang said: "She doesn't understand differentiation, but she is a statistician, and it is no problem to plan the plate." I wrote the equation out to her, and she used the abacus to find the result. ”

Lin Zhenhua said apologetically: "Master Hu, actually, I really didn't expect you to work so hard, otherwise, I would have counted it with you." Our submerged arc welding project is not so nervous, let Director Zhu give you a few days off, and you can sit at home and calculate it slowly. ”

Hu Yang shook his head: "It's not just for submerged arc welding, Xiaolin, I really like this finite element analysis, the more I calculate, the more I feel that this thing is really easy to use, and when this person is excited, he doesn't feel sleepy and tired." ”

Lin Zhenhua said movingly: "Master Hu, in fact, there are many things in finite element analysis, if you are interested, I will tell you everything I know another day." ”

"It's a deal!" Hu Yang said happily, "Xiaolin, I will worship you as a teacher." ”

Lin Zhenhua waved his hand again and again: "Master Hu has tormented me, I just learned this thing by chance." In terms of comprehension of this method, I am far inferior to yours. I think that if you could have studied for a Ph.D. at MIT and given you a laboratory, then it would not be a foreigner who invented finite element analysis, but you Master Hu. ”

With the preliminary calculations, the rest is simple. Lin Zhenhua designed a set of experimental plans, listing different combinations of flux, steel, current and other parameters, and handed them to Fan Shibin and Feng Xu, asking them to organize welders to conduct experiments one by one. The flaw detector waits with an ultrasonic flaw detector, and after each weld, the flaw detector has to come forward to inspect and record the detailed results.

Lin Zhenhua and Populus euphratica were responsible for analyzing the results and establishing experimental curves. After learning from Lin Zhenhua for a few days, Hu Yang came from behind, and the analysis data was better than Lin Zhenhua's. Lin Zhenhua was ashamed for a few days, and then accepted the reality, he made an excuse for himself that he was used to computer calculations in his previous life, and he couldn't work without the computer, and Hu Yang, as an amateur math enthusiast, has always been accustomed to hand calculations, so in the case of bad conditions, his performance is much better than himself.

After the experimental curve was fully established, Lin Zhenhua began to modify the original design drawing of the submerged arc welding machine, according to the results of the experiment, many electronic components parameters need to be reset, and the mechanical part also needs to be adjusted. Hu Yang and the engineers of the technical department also joined in the work of revising the drawings, they have more experience in mechanical design than Lin Zhenhua, and some technical problems that Lin Zhenhua cannot solve can be solved in a short time in their hands.

Lin Zhenhua sometimes feels that he is quite sad, in countless legends of travel, the people who travel are all proud of themselves wherever they go, martial arts first, IQ first, and even the lethality of young girls and young women is the first. However, although he has knowledge that has been advanced for decades, others can surpass him as long as he learns a little. A poplar who claimed to have only a high school degree studied finite element analysis with him for a few days, and now he is a latecomer. A group of engineers in the technical department had never seen the drawings of submerged arc welding in the past, but now they have been working for a few days, and the proposed plan is much stronger than that of Lin Zhenhua.

In fact, it is not surprising that this situation occurs, Lin Zhenhua was only a graduate student before the crossing, and his knowledge is enough, but his basic skills and experience are far from being the opponents of others. His strength lies only in the use of the cheat of foresight, and other talents cannot be made up casually.

"How's it going?" Zhu Tiejun has to ask questions to the research team every day.

"It's going very well, the final drawings can be completed today, and you can place an order tomorrow to start processing." Fan Shibin replied happily.

"Okay, this time your technical department has made a great contribution."

"Where, the first credit is still Xiaolin." Fan Shibin pulled Lin Zhenhua and said.

"That's right, Xiao Lin is the first credit." Zhu Tiejun nodded.

Lin Zhenhua shook his head: "Director Zhu, Section Chief Fan, don't make fun of me." Now the whole research team, I am the most idle, I found that everyone has a deeper understanding of submerged arc welding than me. In comparison, the picture I drew at the beginning was rubbish. ”

Fan Shibin said: "Xiaolin, you are wrong. The principle of submerged arc welding, we all listened to you at the earliest, or we still don't know it yet. The relevant parameters are all measured by you designing experiments, and your role cannot be replaced by anyone. ”

Zhu Tiejun patted Lin Zhenhua on the shoulder and said, "Xiaolin, you have a wide vision and understand a lot of things, this is your strength." If it weren't for you, everyone would still be groping in the dark. However, after all, you are too young and inexperienced in some areas, while the old comrades are experienced, and once they have mastered the principle, they will naturally be able to find a better way to solve the problem. In this regard, you still need to learn from your old comrades with an open mind. ”

"I understand, I understand." Lin Zhenhua said solemnly.

Lin Zhenhua's attitude is not pretending, but heartfelt feelings. He remembered that when he was a graduate student at Huaqing University, his mentor Professor Yao Heliang also said this, he said that in fact, the real master is on the front line of production, and practice produces true knowledge, which is not an empty scene.

"Lad, yes, I didn't disgrace our troops." Zhu Tiejun said, "A few days ago, the factory council had agreed to change you to another type of work. A well-rounded young man like you is too condescending to be a porter. You think about it, see what type of work you want to do, and when the submerged arc welding test is successful, I will do it for you. ”

Lin Zhenhua shook his head: "Director Zhu, thank you for your kindness, but I think it's pretty good now." I still like the porter job. ”

"What a fight that can't be helped!" Zhu Tiejun scolded.

Fan Shibin interjected on the side: "Director Zhu, I think that an outstanding talent like Xiaolin should not be placed in the workshop, but should come to our technical department, and first work instead of work, and in the future, the factory office should strive to solve a cadre establishment for him." I think that although Xiaolin only has a beginner's Chinese certificate, his level is higher than that of many of our college students. ”

"That's a solution, Kobayashi, what do you mean?" Zhu Tiejun looked at Lin Zhenhua and asked.

Lin Zhenhua now knows a lot about the things of this era, and he knows that this society is divided into many levels. First of all, the difference between urban and rural areas is the biggest hierarchical difference, people in the city are called workers, and people in the countryside are called peasants. Specifically, there is another level within the workers, that is, the distinction between cadres and workers. Cadres are under the management of the personnel department, and workers are under the management of the labor department, and the wages and benefits are different.

However, it is precisely because the status of a cadre represents better treatment that it is very difficult for a worker to become a cadre. In many units, there is the name of "substituting work for work", that is, as a worker, he first does the work of a cadre, and after a period of time, when there is a target, he will officially become a cadre. Being able to work instead of work can be regarded as a step up for many workers, not to mention that the targets are much more sought-after than ordinary workers.

Fan Shibin's proposal may be very attractive to other workers, but it has no effect on Lin Zhenhua. Lin Zhenhua knows that all these workers, cadres, and work-for-work are actually floating clouds, and once they go to marketization, these identities will become meaningless.

"Director Zhu, Section Chief Fan, let's put this issue aside for now, and wait until the second-class pressure vessel is completed to collect evidence." Lin Zhenhua adopted a delaying method and avoided Fan Shibin's invitation.

The time for the test run of the submerged arc welding machine has finally arrived, two steel plates with grooves are placed in the center of the container workshop, two guide rails used to support the welding machine have also been paved along the joints of the steel plates, and a small car with exquisite workmanship is parked at one end of the guide rail, which is the submerged arc welding machine. Under the welding machine, a small steel column sticks out, which is the contact tip of the welding machine, and the welding wire sticks out of the contact tip and hangs above the weld, waiting for the welding operation to begin.

The workers in the container workshop all put down their work and gathered around the test site. Lin Zhenhua, Hu Yang, Fan Shibin and others repeatedly inspected the welding machine many times, striving to be foolproof.

"Okay, Director Zhu, now it's time to start the test run." Feng Xu, director of the container workshop, reported to Zhu Tiejun.

"Who's going to do it the first time?" Zhu Tiejun asked.

Lin Zhenhua and the others looked at each other, but they all smiled and didn't speak.

"Why, don't you dare to step forward, or do you want to give this opportunity to others?" Zhu Tiejun asked strangely.

"Director Zhu, you are knowingly asking. The opportunity to cut the ribbon like this must be given to the leader. Lin Zhenhua couldn't help but remind.

Zhu Tiejun was stunned for a moment, and then he realized what Lin Zhenhua meant, he pointed to his nose and asked, "What, do you want me to burn the first crack?" ”

"Exactly. Director Zhu, we are waiting for you to cut the ribbon. Feng Xu said.

Zhu Tiejun laughed: "Okay, I'm willing to cut this color." With that, he stepped forward and pressed the button on the submerged arc welding machine.

The transmission motor sounded softly, and the welder slowly moved along the guide rail. The wire feed wheel rotates lightly, pushing the wire downward, and the flux box on the side is also opened, and the flux flows down at a set speed, just covering the welding spark that bursts out when the wire touches the workpiece. Where the welder walked, a weld was left as flat as a fish scale.

"Bang Bang!" Feng Xu took the lead in clapping, the workers applauded, and thunderous applause rang out in the workshop.

"Director Zhu, this weld is so beautiful, it's just the level of an eighth-level welder!" Feng Xu applauded and complimented Zhu Tiejun, and his farts were louder than applause.

Of course, Zhu Tiejun knew that the quality of this weld had nothing to do with whether he was wise or not, Lin Zhenhua and the others had already set all the parameters, and he just pressed the button. However, seeing the effect of the welding machine is so good, Zhu Tiejun is still very excited, anyway, submerged arc welding is a project he grasps single-handedly, and the success of this project is of course due to his leadership as a leader.

"Congratulations!" Zhu Tiejun shook hands with the members of the research team one by one, and then announced: "Everyone has worked hard, I will give everyone three days off." Three days later, Lao Fan, Lao Feng, Xiao Lin, and Master Yang Chunshan, a few of us took this submerged arc welding machine to the petrochemical machine for inspection. ”