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Chapter 271 Have you ever considered 'pest damage'?
"It's done, it's done!"

"This is the keel that gathers all our efforts!!"

In the warehouse, the keel squad surrounded by students from class nine let out a hearty roar.

In the middle, Xu Kai raised a keel with both hands, looking up at the sky as if doing some kind of ritual.

On the side, Li Cheng, Wang Bo and the others were unavoidably excited.

This keel is the one with the longest working hours, the most care, and the most complicated mortise and tenon structure in the past few days.

It can be said that it has gathered all their hard work in the past few days.

Whether it is the analysis of force, the calculation of impact, and the consideration of various details, they have reached the limit of what they can currently achieve.

If they still fail this time, they really don't know what to do.

[-]% still have to ask the cheap teacher.

But in the past few days, I have been competing with the other party in the aspect of 'cheapness'.

Would it be embarrassing to ask now?

Doesn't this mean that we take the initiative to admit defeat?

The students in class nine shook their heads slightly.

In this regard, they really don't want to admit defeat easily.

We must combat Teacher Ren's arrogance.

Otherwise, the other party will become less and less human in the future!

"Anyway, let's go and test the actual impact now."

Wang Yu in the crowd pushed his glasses, and the pen in his hand almost slipped onto his face.

"Yes, test test!"

Only then did the members of Class Nine come to their senses, and walked out of the warehouse surrounded by keels.

Ren Yan is used to this.

Because there is no device in the warehouse for them to meet the actual force, they will go outside to find help every time they test.

It's not clear what they're testing with.

But Ren Yan didn't panic at all, and had no intention of moving her position at all.

Anyway, wait a while to know the result.

From what he knew of the students, these guys couldn't hide things.

Whenever there is something, it is always the first time to show it.

If it fails, it must be the previous dejected face.

If you succeed, you will have to rejoice if you fail to return.

So watching the students drift away, Ren Yan was unmoved at all, and even yawned.

In the port area, in an auto parts warehouse.

The administrator looked at the group of students in front of him, and his eyelids trembled:
"Are you testing your log again?"

"This is the ninth time in these three days."

"Even if I'm helping you for free, you can't do this."

"If this goes on, I'll have to pay you~"

The management put down the work in hand with some pain, and looked at the 'wood' in Xu Kai's hand.

Hearing this, the students in Class Nine laughed apologetically.

"Uncle Chang, how can you say it's wood? Ours is a keel ~ the keel used for shipbuilding ~"

"For the sake of safety, don't test it~"

"Besides, you don't have much to do during the day, so it's up to you to help us make an impact."

"You have the heart to reject a group of young people with ideals like us?"

The administrator gave them a blank look:
"I don't know if I have ideals, but you are quite annoying anyway."

"We've agreed in advance. From now on, it will be twice a day at most. Your Uncle Chang won't be able to take it too much."

The students in class nine nodded quickly, and then the manager took the keel from Xu Kai's hand and walked towards the corner of the warehouse.

There is a facility dedicated to impact testing, although it is mainly used to test certain parts of the car.

But because the strength can be adjusted, the upper keel can barely work.

This place was also found by Class Nine with great difficulty, and all the tests during this period were completed here.

Soon, the keel was placed on top of the equipment, and management activated the equipment.

The strength setting is the same as last time, starting at [-] kg.

The onslaught started immediately.

A solid iron pillar kept moving back and forth and hit the 'keel' to make a 'bang bang' sound.

But the keel just remained unmoved, without any intention of damage.

Seeing this, the administrator frowned.

The last time when it weighed [-] kilograms, this piece of wood made a cracking sound in an instant, but after just one day, this piece of wood's tolerance has improved so much?
It seems that these students are not just talking.

The manager's heart moved, and he silently increased the intensity of the attack.

One hundred and fifty kilograms.
two hundred kilograms
two hundred and thirty kilograms
The impact force is strengthened bit by bit, but the keel is still as stable as an old dog.

Except for some slight dents on the impact surface, there is no other 'damage' on the entire keel.

On the side, the students of Class Nine clasped their hands tightly, their eyes shining brightly.

There was a suppressed look of joy on his face.

After such a long time, they finally came up with a possible qualified keel!
Although it is only [-] kilograms at present, it is still far from their expected goal.

But at least this path is on the right track!

"Do you want to add more?"

"This piece of wood is already very good. If you add more, it will be a pity if it gets damaged."

The administrator paused the attack, and looked at the students in Class Nine questioningly.

After a brief silence, the students in Class Nine looked at each other, and Wang Yu nodded heavily:
"add!"

"Really?" The administrator frowned slightly, without saying anything, but continued to ask, "How much?"

"Three hundred kilograms, full weight!" Wang Yu replied.

Three hundred kilograms is the maximum amount of this impact equipment.

Class [-] wants to come to Boda this time, so let's verify their hard work in recent days.

And Wang Yu also wanted to see if the things he planned could be realized.

After another moment of silence, the administrator saw that Class [-] was still unmoved, so he could only silently activate the device.

Increase the impact to [-] kg.

The speed of the iron pillar suddenly increased, and it crashed towards the 'keel' with a trace of afterimage.

There was a jaw-dropping grinding sound.

It seemed that the tolerance limit of the 'keel' had been reached, and the entire keel began to tremble slightly.

As on previous occasions, this is a sign of falling apart.

All Class Nine couldn't help holding their breath, staring at the keel on the impact platform.

The management showed a regretful expression.

A good piece of wood will inevitably fall apart in the end.

However, at the next moment, the trembling of the keel suddenly disappeared, and it returned to its original state as if nothing had happened.

until the next shock comes.

Once, twice.

Five times, ten times.

After [-] consecutive impacts, the keel remained unmoved, lying on the impact platform as firmly as an old dog.

The worries on the faces of everyone in Class Nine turned into surprise in an instant.

The administrator's regret also turned into consternation.

He couldn't figure it out, how could it always withstand all the shocks at the last moment when it looked like it was about to fall apart?

Three hundred kilograms!

Even if it acts on human bones, I'm afraid it will only be a sudden death on the spot.

Is such a piece of wood harder than a human bone?
Aside, the floating drone recorded such a scene in its entirety.

Netizens were also shocked and temporarily forgot to breathe.

Did Class Nine really do it?

The spliced ​​keel can really withstand this level of impact.

Teacher Ren didn't say hello anymore? !
The judges still didn't make a sound, they just frowned and thought about the specific cause of this phenomenon.

Only Wang Yu heaved a sigh of relief after seeing the mortise and tenon joints of the keel fitting, twisting and separating.

He knew that what he cared most about had already been resolved.

After fifty shocks, the administrator hit the pause button.

The keel was completely removed.

Subsequent tests are meaningless. Since the other party can withstand [-] impacts without any signs of damage, it will only be the same in the future.

After re-handing the keel to class nine.

The administrator exclaimed:
"You little dolls are really not simple. A piece of wood has really achieved this level."

"I'm going to go out to work as a carpenter in the future. Everyone is a good hand."

"You will never be short of food in the future."

It can be heard that apart from the administrator's admiration, there is also some envy.

Classmate Ah Wei smiled and corrected tirelessly: "Uncle Chang, this is a keel for shipbuilding, not some kind of wood."

"Okay, okay, whatever you say is what you say." The administrator nodded casually, and then asked curiously:
"But I'm very strange, you wooden."

"keel!"

"How did it become so tough? It looked like it would fall apart in minutes, but in the end it resisted all the shocks."

The administrator is really curious about this phenomenon.

The students in Class Nine all looked at Wang Yu.

In terms of explanation, it is obvious that the other party is more professional.

Moreover, the overall design and calculation this time was also led by Wang Yu.

Wang Yu was not pretentious either, holding the keel and began to explain:
"It's mainly because of tenon and tenon joints."

"Teacher Ren said before that mortise and tenon joints are a device that uses force to relieve force."

"We just successfully applied this device to the keel."

"Before, didn't you also have this kind of structure?" The administrator was still puzzled.

"Yes, there were before, and we also considered the problem of force, but they were too tightly connected before. Although they can also have the effect of unloading force, they still have limitations."

"We have also fallen into this vicious circle because of our ignorance of mortise and tenon joints."

"Mortise and tenon, in fact, there is no need to combine them too closely. What we have to do is to exert the maximum effect we need."

"On the keel, what we need most is unloading, and the stability can be appropriately relaxed."

"So, I left some small gaps in each mortise and tenon structure."

"With these gaps, the force received by each tenon and tenon can be easily transmitted to the air, and will not continue to act on the next tenon and tenon."

"In this way, the effect of unloading force can be achieved very well."

"Moreover, because of the existence of these gaps, there is more movable space between the connection points of each mortise and tenon joint, which also provides assistance for stability."

"Although it looks rickety, under the overall construction, they will definitely return to their original positions."

"I only figured this out recently."

"When I was doing mortise and tenon joints before, I left enough gaps because I was not skilled enough, which made the work look abnormally shaken, but it just wouldn't fall over."

"That's why I came into contact with this method."

"No wonder you always left some gaps when you made it before. Feelings are not too trendy in craftsmanship~"

Hearing this, the students in Class Nine were the first to express their emotions.

Although they can understand this more or less, but it is not as detailed as Wang Yu's comprehension.

It's a feeling in their hearts.

As for Wang Yu, it became a principle.

Such a talk also gave the students of Class Nine a sense of enlightenment.

Listening to the emotion of the new classmate, Wang Yu nodded calmly:

"Actually, the main reason is that the craftsmanship is too trendy, otherwise I can do better."

The students in class nine staggered instantly.

Damn, this person is too serious!
At this time, the administrator finally sorted out the joints.

He let out a sigh of relief:
"Students today, it's really not easy."

Then in the next moment, he asked a question about breaking the defense in a second from Class Nine:

"Since you said that this thing is a keel, it is used for shipbuilding."

"Then how do you solve the pest problem?"

"Once the wood is damp, it is easy to breed pests."

　I'm getting really early!

　　
　
(End of this chapter)