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Chapter 193 Old classmate, you are so amazing!
The man was making loud noises again, which caught Lin Feng's attention again.

"Guangwei, what's wrong?"

Liang Guangwei waved his hand and said, "It's okay, his tractor was repaired here, and there was a little problem."

Oh I got it.

Since it was a small problem, Lin Feng didn't take it to heart at all, and said happily, "We haven't seen each other for at least two years."

"Yeah, time flies, we haven't seen each other for two years and eight months. You are in Phoenix City, and I am in my hometown. It is getting harder and harder to meet each other."

"Oh, by the way, are you still working as a craftsman at the Phoenix Factory?"

Lin Feng said, "No more, since last year I went to sea to open a factory by myself, and now I have completely left the Phoenix factory."

"It's a pity, the Phoenix Factory is a military enterprise, with an iron job." Liang Guangwei shook his head and said.

Although there were letters between the two, Lin Feng was not a braggart. Liang Wenguang didn't ask carefully, so he didn't talk about his own business.

"Oh, by the way, there is a high school reunion tomorrow, and you come back just in time, so go and have fun at that time, you haven't seen many of your classmates for several years, right?"

Lin Feng said happily, "There is such a coincidence, so I must go to get together. Since graduating from high school, at least [-]% to [-]% of my classmates have never met."

Liang Guangwei said, "Then you can finally see at least [-] classmates tomorrow."

In the early 90s, everyone had no mobile phones, WeChat, or the Internet, and the communication between classmates was by letter or verbally.

Tomorrow's gathering will be limited to students who live in the county town or around the county town. There are more than [-] people. Lin Feng just came back and is with Liang Guangwei, otherwise I really don't know about it.

The old classmates hadn't seen each other for many years, and they were chatting happily, but the man's movements became louder and louder, and Wang Xing came over helplessly, "Master, you should take a quick look."

Liang Guangwei nodded, and then said helplessly, "Lin Feng, I'm really sorry, just happened to encounter such a thing."

Lin Feng didn't take it to heart at all, and said with a smile, "It's okay, you can go to work first."

Liang Guangwei walked over and got busy there.

Lin Feng waited for three to five minutes, and saw that he hadn't finished the work, so he walked over. He originally wanted to say that he was going back for the time being, and we would talk at the class reunion tomorrow.

But before he could say anything, the man and Liang Guangwei quarreled fiercely.

"With technology like yours, you can't even remove a few rusty screws. It's really nothing."

His words were very ugly.

Liang Guangwei's face turned red, and he really wanted to argue a few words, but he really didn't unscrew the bolt, so he could only bear it silently.

Lin Feng looked at all this from the side, and he understood what was going on. It turned out to be just a few rusty bolts. He felt a little sorry to see his old classmate getting red-faced.

So, Lin Feng looked at the few bolts that had already been spent, and he knew it immediately, and gently pulled Liang Wenguang.

"Old classmate, do you want to unscrew these bolts in a hurry now?"

Liang Guangwei nodded and sighed, "He's the one making the noise. If you give us a little time, it's just a few rusty bolts, we can always figure out a way."

Lin Feng said, "I have an idea, do you want to try it?"

Hearing this, Liang Guangwen's eyes lit up.

He patted his head lightly, "Why didn't I think of it, you are a high-achieving student, and you work in a large military industrial unit like the Phoenix Factory, you will definitely have a solution."

He is just a technician at the County Agricultural Machinery Factory. In his eyes, being able to work in a unit like the Phoenix Factory is an invisible step up.

Lin Feng smiled. It wasn't because of his work at Phoenix Factory that he had a solution, but because of his god-level learning talent. The more technical books he read, the more knowledge he had in his mind, and the more ways to solve problems. stand up.

"Lin Feng, tell me quickly how to unscrew these rusty bolts.

Lin Feng looked at the bolts, they should be twelve hexagonal bolts, and the material is also ordinary, so he said, "Is there a hand drill, find a 6 or 8 meter thread drill, and drill in the center of each bolt hole. A hole with a depth of more than ten is enough."

Wang Xing said, "You are going to drill the hole first and then tap the thread. This method is useless unless you can reverse the thread, but we don't have tools for tapping the thread."

Liang Guangwen seemed to trust Lin Feng very much, and reprimanded him, "Wang Xing, what are you doing with so many questions? Do as my classmate tells you."

The master spoke, but he didn't dare to say anything else. He found a 6-meter screw drill, and then began to drill holes in the center of each rusty hexagonal bolt.

Lin Feng watched from the side.

Although Wang Xing raised doubts just now, he didn't have any dissatisfaction in his heart. Seeing Wang Xing's operation now, he nodded lightly. This person still has two brushes in his hand, and every hole he drilled is very standard. , the position is very positive, without the slightest skew.

One with four bolts and one with four holes, drilled in a while.

Wang Xing put down the electric drill in his hand and asked, "What should I do next? Is it really tapping in each hole?"

Lin Feng shook his head and said, "No tapping, do you have a tapered milling cutter, if not, go to the hardware store outside and buy one."

This thing is nothing unusual, you can buy it in ordinary hardware stores.

Wang Xing was a little puzzled why he didn't use a wire tap, but a conical milling cutter. He glanced at Lin Feng suspiciously. Although he was confused, he still nodded and said, "We have quite a few conical milling cutters."

At this time, Liang Guangwen seemed to have guessed something, and waved his hand, "Hurry up, bring them all here."

Wang Xing dug out several conical milling cutters from the toolbox, some big and some small. Lin Feng chose a moderate size among them, and then stretched out his hand and said, "Give me another monkey wrench."

Liang Guangwei personally handed over a monkey wrench.

In the eyes of everyone, Lin Feng inserted the conical milling cutter into the hole of one of the bolts, and then clamped the handle of the milling cutter with an adjustable wrench, and easily turned the corroded bolt that was immobile.

This.
Is it that simple!

If you hadn't seen it with your own eyes, you wouldn't believe it would be so easy.

These few bolts made them choked up. They used all kinds of tools and even scratched the bolts, but there was nothing they could do.

The first rusted bolt was easily unscrewed, and then, Lin Feng said, "The next few bolts are also operated in the same way, you should have no problem."

Wang Xing took the wrench, nodded quickly and said, "No problem, we know what to do."

Within 2 minutes, the remaining three rusty bolts were easily unscrewed.

Problem solved!

The man who had been making noise just now also completely shut up and didn't say anything else.

Liang Guangwei even said, "Lin Feng, I have opened my eyes today, and there is such a method."

Lin Feng said modestly, "I happened to see such an operation method in a book. I will try it today. It really works."

Liang Guangwei said, "Wang Xing, today's method must be written down, and the next time you encounter such a situation, you will do it like this."

"Okay, master."

The four rusty bolts have all been unscrewed, Liang Guangwei doesn't need to worry about the repair of this tractor, Wang Xing and the others are enough for everything.

"Lin Feng, let's go have a drink or two."

It was almost noon, Lin Feng said with a smile, "Yes, but will it affect your work?"

"It affects the yarn. I'm working overtime today. It's okay to leave earlier."

The two left the maintenance workshop together, Lin Feng said, "Get in the car, let's go to the county town and find a place to have a drink or two, I'll treat you."

Seeing this jeep, Liang Guangwei was surprised. After getting in the car, he looked at Chen Wei who was driving and Tang Long who was sitting in the co-pilot.

When he was in the maintenance workshop just now, he always thought that Chen Wei and Tang Long were Lin Feng's friends or something, but now it doesn't look like it, but they look like bodyguards and drivers.

"Lin Feng, the two of them are."

Lin Feng didn't hide anything, and said truthfully, "The driver is Chen Wei, my driver, and the co-driver is Tang Long, my bodyguard."

Really, I guessed right!
Liang Guangwei was even more surprised. He always thought that Lin Feng was working as a technician at the Phoenix Factory. When the two met and chatted just now, Lin Feng said that he had left the Phoenix Factory to open a factory in the sea.

At that time, he didn't take it seriously either. Going to the sea is nothing new these days. He thought that Lin Feng should just be making a fuss.

Now it seems that this is not the case.

There is a car, a driver and bodyguards when you go out. This is the configuration only a big boss has.

Liang Guangwei couldn't bear it anymore, and asked, "Lin Feng, please tell me about your current situation. Have you made a fortune?"

Lin Feng briefly explained his situation, neither exaggerated nor narrowed, just what it looked like.

Liang Guangwei didn't come back to his senses for a long time.

My heart is completely turbulent!
He actually started his own business, established Leihuo Technology Industrial Group, with an investment of more than [-] million yuan, and is developing turboshaft engines and military transport aircraft.
The jeep drove all the way to the entrance of a good restaurant in the county seat. Liang Guangwei still looked a little abnormal, and the shock in his heart had not completely receded.

Lin Feng patted him on the shoulder lightly and said, "The relationship between us is not affected by status and status, we are still best friends, come on, go in and have a drink or two."

After speaking, he personally took a bottle of Moutai from the car, and walked towards the hotel. After being stunned for a while, Liang Guangwen followed.

Lin Feng ordered a few dishes, opened the bottle of Moutai, and each poured a glass.

Liang Guangwei said, "I'm not afraid of your jokes, this is the first time I've had such a good wine."

Lin Feng said, "Then drink more, if you don't get drunk, you won't go home. After drinking this bottle, I still have several bottles in the car, enough."

Liang Guangwei laughed.

The two chatted while drinking and eating.

Lin Feng also asked about Liang Guangwei's current situation.

In Liang Guangwei's words, even if he can't make a fortune, he can't starve to death for a while, and his monthly salary is 140, [-] cents.

This salary is a bit low, that is, in small counties and slightly larger cities, the salary of technicians is basically around [-].

For example, the average salary of Leihuo Technology Industry Group has exceeded [-], and the monthly salary of Liang Guangwei, a technical backbone with a bachelor's degree and several years of work experience, is generally more than [-].

Lin Feng said, "Our Leihuo Technology Industrial Group is just short of people, especially technical and management talents. How about coming to work with me?"

Lin Feng offered an olive branch on his own initiative.

Liang Guangwei replied, "Of course I would like to go to your place, but, I am in charge of the research and development of a horizontal-bar diesel engine, and I have encountered some technical problems. If this technical problem is not resolved, it is estimated that no one will be released from the factory."

"Oh, you guys are making horizontal bar diesels!"

Of course Lin Feng knew about this thing, it was very popular in the 90s and [-]s, it was like an artifact.

Because of the simple structure and relatively low technical content, many agricultural machinery factories can manufacture it by themselves for various tractors, various water pumps, and various other agricultural machinery.

Of course, it also has disadvantages, that is, the power is generally small, often only [-] to [-] horsepower, and the noise and vibration are large, the fuel utilization rate is relatively low, and the pollution is relatively large.

"Yes, we are working on a horizontal bar diesel engine. I am the technical director of this project. From last year to this year, it has been almost a year. The prototype has also been manufactured, but the noise and vibration are too big."

He briefly explained the situation.

Lin Feng said, "Maybe I know where the fault is."

"really?"

Because he witnessed Lin Feng easily unscrew those rusty bolts just now, Liang Guangwei believed in Lin Feng very much.

"It shouldn't be a big problem. If possible, you can take me to have a look after dinner."

"Okay, great."

Liang Guangwei became happy all of a sudden, he was planning to not get drunk and never go home, but after drinking about two or three liang of wine, he stopped drinking.

"This is really good wine, what a pity."

Lin Feng said, "Take the unfinished wine back, and continue to drink at night."

Liang Guangwei usually likes to drink two glasses, but he is really reluctant to part with this little wine, and he is not polite, "Then I will take the rest of the wine home."

He hasn't drunk half of a bottle of wine, enough for him to drink again.

The two had dinner, and then went to the agricultural machinery factory.

The problematic horizontal-bar diesel engine was still there, and Liang Guangwei didn't give instructions, so he didn't move it.

Lin Feng suggested, "Start it, let me check the situation first."

Liang Guangwei waved his hand and said, "Xiao Li, come here a few of you."

Xiao Li and several other young technicians and young workers came over.

"Liang Gong, do you have any orders?"

Liang Guangwei said, "Start the diesel engine."

Xiao Li really wanted to say, hadn't it already been activated in the morning, why should it be activated again? He looked at Lin Feng next to him and thought in his heart, could it be because of him.

Xiao Li took the crank and began to start the diesel engine by hand. Soon, the sound of chug chug sounded, and the horizontal bar diesel engine started working again.

Lin Feng looked at the work situation, then signaled to increase the accelerator, and nodded lightly, signaling that the engine could be turned off.

After the diesel engine stopped, Lin Feng said, "I probably know where the problem is. As for the design drawings, show me first."

There are design drawings in the cabinet next to it. Lin Feng first spread out the general design drawing and looked at it, and then looked at the design drawings of several main parts, such as crankshaft, flywheel, connecting rod and cylinder.

Lin Feng said, "I think there is a problem with the crankshaft and flywheel. The symmetry between the two is not enough, and the mass distribution is also asymmetrical. When working, the vibration and noise are relatively large."

Is it really?

Several technicians including Xiao Li looked at Lin Feng, and some people thought, who are you? They just took a look at the working condition of the diesel engine, then looked at the design drawings, and then said that the crankshaft and flywheel were asymmetrical, and there was a problem.

A technician questioned, "You are talking nonsense, how is it possible, I don't think what you said."

Facing doubts, Lin Feng did not refute. Instead, he took out his pen and saw a blank piece of paper beside him.

I drew a simple diagram on a white paper, and then pointed it out, "Then you see, the angle between the flywheel and the crankshaft should be adjusted, it should be like this'"

Liang Guangwei watched carefully, and gradually understood that a layer of window paper seemed to be pierced in front of him.

He patted his head lightly, why didn't I think about the problem of mass symmetry, no wonder I saw in some books that some high-speed rotating parts need to be dynamically balanced.

In the field of aero-engines, dynamic balancing of rotating parts is common and necessary, and everyone is not used to it.

In the field of agricultural machinery, it is normal for them not to know what the problem is, where there is a dynamic balancer.

Liang Guangwei has suddenly realized, but the other technicians are still in the fog, and it is estimated that they will not understand for a while.

"Old classmate, thank you, thank you so much."

"If it weren't for you, I don't know how long I would have been troubled by this problem."

Lin Feng smiled, "It's just a coincidence for me, it's easy, you don't need to thank me so much."

Now that the problem has been identified, it is necessary to verify it.

Validation is also simple.

Under the command of Liang Guangwei, the workers dismantled the flywheel and crankshaft, then adjusted the assembly angle and fixed them to make them symmetrical in mass, and then reassembled the horizontal bar diesel engine.

Without further instructions, a worker started the diesel engine, took the crank and shook it vigorously for a dozen times, and the engine started to work again and again.

"what"

Whether it is the workers or the technicians, everyone quickly discovered the difference, both the noise and the vibration are much smaller.

Liang Guangwei increased the accelerator, and then increased it to the maximum.

Surprise was written all over his face!
The technicians and workers around cheered even more, and then applauded vigorously. The problem was miraculously solved.

At this moment, everyone looked at Lin Feng with only deep admiration in their eyes.

so amazing!

It's really amazing!

I don't know if it was because of too much commotion or a coincidence, Li Yong, the leader of the agricultural machinery factory, just walked in with a few people. Seeing the situation here, they walked over here.

I only have these [-] words today, so sorry.

(End of this chapter)