The joys and sorrows of human beings are not the same. Early on Tuesday morning, Shu Wan and the three of them dressed up and went to work beautifully, while Xiaoyuan wore blue overalls wrapped in a down jacket, dragging her violently sore limbs and moving round to work.

Save your mobile phone, change into protective clothing, and enter the factory.

Sister Hu was signing a file, and when she saw her, she motioned for her to stop. After signing it to her subordinates, she crossed her arms and looked at Xiaoyuan, "What, it was scrapped yesterday afternoon?" ”

"Good morning, Sister Hu." Madoka didn't hold it strongly, and said bitterly, "It's scrapped but it can be reused, it's just that it hurts too much when you go up and down the stairs in the dormitory." ”

Sister Hu was amused by her, and asked casually: "How many periods have you lived, but there is no elevator?" ”

"Phase I."

Sister Hu was a little surprised, but she didn't ask much, "Today shouldn't be as tired as yesterday, come with me." ”

Madoka followed in a daze. I wondered in my heart, wouldn't I move bricks today?

-

Sure enough, I didn't move bricks!

Sister Hu led her to a master: "This is Master Wang, you will follow him to remove the battery today." ”

The old master glanced at her and complained dissatisfiedly: "How can I let a little girl come and help me, what can she do?" ”

Sister Hu smiled: "College students, what are you dissatisfied with when you come to intern." ”

Master Wang was even more dissatisfied: "College students are even more dissatisfied!" One by one, they are very arrogant, and I don't like to bring them. ”

He said this in front of Xiaoyuan, but Sister Hu waved her hand and walked away.

Xiao Yuan hurriedly said: "Hello Master Wang, my name is Chang Eryuan, you can call me Xiao Yuan, I am a college student, the kind that is not arrogant." ”

Someone next to him burst out laughing, it should be a young boy, Xiao Yuan looked at him, only to see a tall and thin protective suit, probably an apprentice brought by Master Wang.

"Concentrate on your work." Master Wang reprimanded his apprentice, and his attitude towards Xiaoyuan was slightly better, "Then you have to work hard when you come." In our case, we dismantled the shell of this kind of battery and removed the cell. There will be a machine to handle the battery cells later. ”

He came to a large ternary lithium battery, and Xiaoyuan recognized it as a 72-volt 100-ampere battery produced by Yu Feng at a glance, weighing 50 kilograms on paper.

"This kind of battery is too big, and it is not easy to go to the discharge cabinet, so it will be dismantled here."

"Demolished?"

"Yes, discharge first."

Xiaoyuan was stunned for a moment, and asked, "Don't you go up to the discharge cabinet?" ”

Master Wang was impatient: "It's so big, and it's such a piece, isn't it wasted on the discharge cabinet?" Less, more work! ”

All right~~~

Of course, this is very irregular, but there are rules in a place, and she is just an intern, so she can't point fingers as soon as she comes.

Master Wang asked Xiaoyuan to help him hold on to the shell. "Just press here, yes, hold on, don't move!"

Then, in the blink of an eye, he separated the plastic shell, revealing the metal part. The inside has been short-circuited, blue electric light flashes from time to time on the shell, and the most obvious is that there is a large bulge in the right-to-center part.

Madoka looked curiously, and Master Wang was looking at her on the other side. Madoka smiled at him, her hand honestly placed, and she didn't mean to move at all.

Master Wang nodded a little drum: "Do you know what's going on?" ”

Madoka replied obediently: "The inside of the battery is abnormally warm, which causes the viscosity of the electrolyte to be too high, and the gas cannot be discharged smoothly, resulting in bulging. ”

"What should I do?"

"Try to get the gas out."

"Stand in that position."

Master Wang pointed to the side, and Xiao Yuan stood in place one by one.

She watched Master Wang choose the right angle, and a screwdriver stabbed into the edge of the bulge. She moved subconsciously, her eyes widening.

Battery bulge is one of the biggest problems in the battery, improper handling, the bulge may burst open, high-temperature electrolyte burst out, and it may hurt people!

But when Master Wang went down, a small hole appeared on the edge of the bulge, and a trace of micro-air flowed out slowly. After a while, a small amount of electrolyte also flowed out, and the bulge was visibly deflated.

-

Madoka still stood still, stretching her neck like a weasel, surprised and admired: "Wow, how did you judge this?" ”

Xiaoyuan's exclamation was too sincere, and Master Wang was very useful: "I've been doing it for decades, how can I not see anything." Come here, stand here, put your hands here. ”

He commands very carefully, and Madoka is also very obedient, never overstepping his bounds and making his own decisions.

The battery structure is something she learned in her freshman year, and she has seen a lot of real things, but she has never been in contact with such an extreme use and problematic battery.

It was quite a wonderful feeling to see the content repeatedly emphasized in the book turn into facts in front of my eyes, and be calmly resolved by experienced masters one by one.

All in all, in an instant, she could accept that she was half tired yesterday, and she still has back pain until now.

She studied in school for two and a half years, and all she learned was theoretical knowledge. What she lacks most is practice! The battery factory is tired, and it is indeed what she needs the most at present.

-

At noon, a large group of people sat around to eat. Madoka also saw the true face of the slender protective suit, which was actually a handsome little guy with clear eyebrows and beautiful eyes, and his name was Xiao Qi. Madoka couldn't help but glance at the rice several times while pulling the rice, thinking that this must be factory grass!

"You're a college student, you have a future."

Xiao Yuan was suddenly named by Master Wang, and hurriedly withdrew his gaze from the apprentice, serious: "Master Wang, why did you suddenly praise me?" ”

Hurry up and boast!

Master Wang commented seriously: "Obedient, smart, I don't think I'm amazing." Hey, not like some people...... Actually, I haven't seen anyone, the professor Kang in their R&D center, our big and small bosses, is not polite to come. ”

Xiaoyuan nodded: "There is a specialization in the art industry, the battery just now, how am I still dealing with the circuit to make it discharge, you can get it done with a plier." It took me five minutes to figure out how it works, and you can see it at a glance. ”

Master Wang was so praised by her that crow's feet wrinkled: "I have seen too much, so I naturally have experience." ”

Xiaoyuan took the opportunity to ask a few more questions, and Master Wang was patient and answered her carefully.

When he was about to finish eating, Master Wang sighed and said, "When I was young, I would be as willing to ask as you did." At that time, I was a stuffy gourd, and all these things were touched by myself little by little. ”

He put down the empty lunch box and rolled up his sleeves to show Xiaoyuan: "This is what I was burned by electricity a few years ago, and these small ones are scalded by electrolyte." ”

His arms were full of scars, large and small, that could not be erased.

Madoka stared, her mind constantly flashing over the whole process of disassembling the battery in the morning, and she sighed slowly.

Master Wang said: "However, in recent years, it has been much better, and the residual wind protection has been better and better, and it is not as easy to get injured as before." Sometimes it can be a bit of a surprise. ”

-

In the afternoon, Master Wang was not as strict as in the morning, and began to try to let Madoka work a little deeper.

Madoka is not reckless, let me do whatever I want, and I do it very clean and beautiful.

In essence, removing the battery is the reverse operation of installing the battery, and Madoka is very familiar with the battery structure and installation process, and has strong hands-on ability, so this work is not difficult for her.

The only difficulty is that when it comes to reverse operations, she is not experienced enough to judge the internal situation from the outside.

But there is Master Wang to escort him.

The two worked happily together and continued to make progress, and the smiles on Master Wang's face became more and more.

-

When I was about to leave work, a small accident happened.

At that time, they were discharging a large ternary lithium battery.

Short circuit, electrolyte splashing, and harmful gases are the three major dangers of battery dismantling and recycling.

There is residual power inside the battery, and it is easy to spontaneously short circuit if not properly handled, and the short circuit can easily cause explosion and fire.

There are many forms of battery discharge, physical and chemical, but they usually take a long time, the process is more arranged, and the fastest and most trouble-free is still the short circuit method.

This requires a lot of experience and a very good understanding of the internal circuitry and conductivity of the battery in order to only export the electricity and not affect the surrounding area and cause an explosion.

-

For such a dangerous job, of course, Master Wang came by himself at the beginning, and even asked Xiaoyuan to go a little farther away to avoid being affected by accidents.

Madoka is very obedient and obediently retreats every time.

But her people walked away, but her eyes didn't leave, still keeping an eye on the battery.

When Master Wang was dealing with the circuit of the second battery, Madoka suddenly shouted, "Wait a minute! ”

Master Wang reflexively stopped, frowning at Xiaoyuan.

"How are you going to put it?" Xiao Yuan's eyes stared at the battery, and he asked Master Wang.

"How do you put it? Yufeng SB type 310 battery, just put it like this? Master Wang didn't understand what she meant.

"Ugh! Didn't you pay attention? This is not the afterwind SB310, it is a copycat. Madoka said.

"What?"

-

At the same time, the R&D center.

The R&D center has just finished a conference, because there is no secret, just a discussion of industry trends, so the interns of Jiangwu University are also allowed to observe.

So they met Yu Jinyi, who seemed to be more difficult to see than Professor Kang in the R&D center.

At the end of the meeting, everyone rushed out. Yu Jinyi and Professor Kang seemed to be discussing something, and they didn't leave for a while. Shu Wan slowly packed up her notes, which made Zhang Jun a little impatient, "Hurry up later, go to dinner early after work." ”

Shu Wan couldn't hold back any longer, packed up her things and followed the interns to the outside of the conference room. However, as soon as she stepped out of the room, she stopped.

"Zhang Jun, Yiyi, you guys go first." She looked nervous and hesitant, "Or you can accompany me to strengthen my courage." ”

These words suddenly aroused Zhang Jun's curiosity, "What are you going to do?" Do you want to be brave? ”

The boys looked at her curiously, too.

Jiang Yuwei still cared about her in the end, "What are you embarrassed about?" I can help you. ”

Zhang Jun immediately looked at Jiang Yuwei, and then at Shu Wan, with a hint of doubt in his eyes.

Not to be outdone, the children's camp performed, "Yes, you name it, let's do it together." ”

"It's not a big deal." Shu Wan shook her head, and then said with a firm expression, "That's it, I want to fight for Madoka." ”

Everyone was a little confused, so at this moment, Yu Jinyi and Professor Kang came out. They didn't seem to care about the group of students stranded outside the room, passing them by without squinting.

Shu Wan bit her lower lip and resolutely shouted, "Senior Brother Yu." ”

Yu Jinyi stopped.

-

Shu Wan walked up to him with a look of embarrassment on her face. "Senior Brother Yu, do you remember me? We met at Mr. Cai's wedding dinner, and this time my classmates and I were fortunate to be selected for an internship at Yufeng's R&D center. ”

Yu Jinyi nodded, "I have an impression, you are welcome to come to Yu Feng for internship." ”

Shu Wan looked a little cramped, "Senior Brother Yu, I shouldn't have bothered you, but there is something about my classmate, and I want to help her ask about the situation." ”

Yu Jinyi's eyes flashed slightly, "You say." ”

"I have a classmate named Chang Eryuan, who has good grades and is also in this batch of interns. Everyone filled out the form together to apply for an internship at the R&D center, but she was assigned to the battery recycling center. She is a girl, she can't do the work of the battery factory, and when she came back yesterday, she said that she was exhausted. So I just thought, can I ask Senior Brother Yu to help ask, is there something wrong? If Senior Brother Yu is inconvenient, forget it. ”

Yu Jinyi listened quietly, and it wasn't until she finished speaking that she read Madoka's name. "Chang Eryuan, is it?"

Shu Wan nodded.

Yu Jinyi asked, "Are you classmates unhappy about going to the battery recycling center?" ”

Shu Wan replied thoughtfully: "It's our honor to be able to come to Yufeng for an internship, but everyone is in the R&D center, and she is lonely, and she must be very disappointed." And she really couldn't bear the labor intensity of the recycling center, and kept saying that she was tired. ”

Yu Jinyi nodded, "I'll find out." ”

Shu Wan immediately looked very happy: "Thank you, Senior Brother Yu, then we won't bother you." ”

Yu Jinyi turned to leave.

-

It wasn't until he walked away for a long time that the interns at Jiangwu University came to their senses. Zhang Jun first shouted: "It's a good day, you actually know Senior Brother Yu, why don't you say it." ”

Shu Wan shook her head, "I just met at a banquet, the elders are more familiar, and I just said hello to him a few times." If it weren't for Madoka's business, I'd be really embarrassed to tell him more. ”

Zhang Jun sighed: "You are so low-key. Oh, I think you told Senior Brother Yu that Chang Eryuan's matter will definitely be done, and she will die of happiness. ”

Shu Wan: "Madoka's appearance yesterday was really miserable." I was really nervous just now. ”

Zhang Minkang snorted: "If you can't do it, it's Yu Jin...... Senior Brother Yu arranged it, you didn't work in vain. ”

"Don't talk nonsense, Senior Brother Yu is not such a person. Can you stop targeting Madoka all the time, where did she offend you. Shu Wan said angrily.

Tong Ying's face was a little gloomy, and then he smiled, "Then you're done, let's go to dinner together." ”

A group of people said and walked out.

Zhang Jun pouted as he walked: "Chang Eryuan is really lucky to have a good friend like you." ”

Qiao Zhiyi nodded, "Shu Wan, you are really good." ”

Shu Wan affectionately took the arms of the two of them left and right, "You are also my good friends, let's go, let's eat." ”

Three girls walked in front slimy. Behind him, Jiang Yuwei's gaze fell on Shu Wan, revealing a warm smile.