In the experimental building of the Institute of Mechanical Engineering of Huhai University.

Xue Lao walked in front to lead the way, and Liu Wenping followed on the side.

Behind them was a group of diminutive men, all with work signs that read "Dongying Polytechnic" on them.

"This is our metal flaw detection laboratory. A teacher introduced these people.

A man led by the exchange group of Dongying University of Technology walked straight in, glanced at the equipment inside, and sneered: "What age is this, you are still using such backward equipment, we have long since eliminated it." ”

His Mandarin is okay, but with a strong accent.

Hearing this, the teachers at the school didn't look good.

The School of Mechanical Engineering of Huhai University is not the strongest department, let alone compared with top foreign universities, even compared with some domestic universities.

If the funds are weaker, you will not be able to buy some powerful equipment.

Many of the equipment in the laboratory is outdated, barely enough for teachers and students in the school to do research.

Sometimes, if the Institute of Mechanical Engineering wants to use a high-precision microscope, it has to go to the School of Materials Science and Technology to apply.

Everyone knows this, but being ridiculed by Dongying people at the moment makes everyone feel uncomfortable.

"The Mechanical Institute of Huhai University is nothing more than that. The Dongying man said with a disdainful look on his face and walked out of the laboratory directly.

"Let me see what kind of equipment you can come up with. The boy continued.

Wang Zhao on the side couldn't help it, and said angrily: "Yamaguchi Haruto, you have the ability to find other schools, don't you just think we are easy to bully!"

The boy was a representative of the exchange group, and his name was Haruto Yamaguchi, a graduate student at Toei University of Technology.

"This classmate, what's wrong with us bullying you?" Haruto Yamaguchi said disdainfully.

The faces of those Dongying people behind him all showed mockery.

"Huhai University is among the top five in China, I didn't expect the School of Mechanical Engineering to be so rubbish!"

"I'm embarrassed to say that we bullied you, we just bullied you!"

"We at Dongying Institute of Technology are not weaker than any school in terms of finishing!"

A few Dongying people shouted.

Wang Zhao's expression was angry, his fists were clenched, but he couldn't say a word.

It is an eternal truth that if you fall behind, you will be beaten, and they are here today to bully people.

In order to ridicule them, this group of people actually learned Mandarin.

Xue Lao said slowly: "Don't quarrel, it's a fact that our equipment is not good, so we have to work harder." ”

"Even if you fight, you will never be able to catch up with us!" Haruto Yamaguchi scoffed.

At this moment, even Xue Lao's face became a little unhappy.

"Visit the next lab!" Liu Wenping hurriedly said.

The skills are not as good as others, so you can only swallow your anger.

"This equipment is what we used in the last century, but I didn't expect you to still use it now!"

"Oh my God! This machine is old enough to enter our museum!"

"What kind of students can you teach with all this?"

Every time he arrived at a laboratory, Haruto Yamaguchi began to talk about it.

Xue Lao and Liu Wenping's faces became even more embarrassed.

After visiting the laboratory, everyone came to a conference room.

Haruto Yamaguchi placed the bag he was holding on the table and pulled out a small black box from it.

"Dear teachers and students of Huhai University, the friendship between our Dongying University of Technology and Huhai University is indestructible, and you should not take what I said before to heart, after all, what I said is the truth. Haruto Yamaguchi sneered.

"That's natural, and we at Huhai University are willing to deepen exchanges with Dongying University of Technology and make progress together. Xue Lao said with anger.

No matter how you say it, these are also international friends, and you can't make any mistakes.

"I said I was going to give you a gift, and now I'm going to show you it. Haruto Yamaguchi slowly took the small black box in his hand and opened it immediately.

The black box is padded with a soft cloth inside.

Inside the box is a heart-shaped metal workpiece.

The surface of the workpiece is polished to a very bright surface, reflecting the surrounding scene, with an iron-gray glow, clearly made of steel alloy.

"This is our gift to you, symbolizing our heart-to-heart connection with Huhai University and our friendship will last forever. Haruto Yamaguchi had a hint of pride.

"Take it and show them. Haruto Yamaguchi commanded.

A student behind him stood up and brought the heart-shaped artifact to Xue Lao's face.

Xue Lao took the workpiece and looked at it carefully, his eyes puzzled.

"Yamaguchi-san, why is there a hole in the center of this peach heart?" Xue Lao couldn't help but ask.

The surface of this peach heart is smooth, and there are three sides in total, the upper and lower sides are flat, and the surrounding area is a curved surface, which is surrounded by the shape of the peach heart, showing extremely advanced surface processing technology.

It's just that there is a circular cavity in the center of the peach heart, which directly penetrates the entire peach heart.

The cavity appears smooth to the naked eye, as if a hole was specially drilled.

A smile appeared on Haruto Yamaguchi's face: "This is my gift to Huhai University, I would like to ask Huhai University to match a screw for this peach heart, after the screw is screwed, it can just make up for this hole, and it fits perfectly with the surface." ”

"A broken heart is naturally not beautiful, and only a complete heart can represent a heart-to-heart. ”

Haruto Yamaguchi's voice fell, and Huhai University was dumbfounded.

"Isn't this just a round hole? Isn't it enough to cut a cylinder and stuff it in, why do you need screws?" Wang Zhao wondered.

"That's right, how do you match screws, you don't even have threads!"

"Without threads, how do we match screws?"

Several other students wondered.

Liu Wenping took the peach heart workpiece and turned on the flashlight on the mobile phone to shine on the hole.

The hollow inner wall still reflects a metallic luster.

This means that the machining accuracy inside this cavity is terrifying.

But no matter how you look at it, Liu Wenping didn't find how to stuff a screw into it.

In modern industry, screws and nuts are the most commonly used fasteners, with different specifications, nuts and screws of the same specification can be directly put on and screwed.

The screw is called the external thread, and the nut is called the internal thread.

If there is no internal thread, even if you make a screw, you can't screw it.

"Yamaguchi-san, there are no threads on this?" Liu Wenping wondered.

"The teachers and students of Huhai University don't seem to have good eyes, but that's all I have to say, if I have to remind you of this, I have to wonder if your ranking of Huhai University is watery. Haruto Yamaguchi sneered.

This group of Dongying people sat here motionless, looking at Huhai University opposite with contempt on their faces.

Xue Lao suddenly remembered something at this time, and said sharply: "Bring the microscope!"

A student hurried out, and not long after, he came over with a portable microscope in his hand.

This portable microscope is about the size of a camera and can be magnified hundreds of times.

Xue Lao immediately aimed the camera at the inner wall of the peach heart.

It doesn't matter when you look at it, but it's shocking when you look at it.

The inner wall is densely covered with tiny threads.

Wang Zhao and Liu Wenping lay in the back, and many students looked at the screen together.

To the naked eye, it looks like a mirror, but at the moment it looks like there are tiny threads, which are circled around it, and the spacing between the teeth is very small.

This is what you can see under the microscope, which is very small, but how small should these threads actually be?

"!" Wang Zhao couldn't help but cry out.

The other students all let out a "" sound.

"It's so small, how can you match the screws?" Wang Zhao wondered.

"Our equipment can't match that accuracy. Liu Wenping also said.

Haruto Yamaguchi sat across from him with a smile on his face, enjoying the feeling a little.

Dongying is second to none in finishing, which is by no means comparable to Huhai University.

They don't expect Huhai University to make screws at all.

"Yamaguchi-san, let's go back and study this thing. Xue Lao said slowly.

"I'll give you time to study whatever you want, but I hope we'll see a heart intact before we leave. Haruto Yamaguchi said lightly.

He slowly stood up and left the place with a group of Dongying people.

"Get on the laser interferometer and measure all the data of this workpiece immediately!" Waiting for the group of people to leave, Xue Lao hurriedly said.

The students immediately got busy.

Matching screws is a top priority!

If you don't deserve it, Huhai University will lose its adult!

Even if they know that this is Dongying Institute of Technology, they are making things difficult for them!

In the laboratory, everyone was dumbfounded after measuring the data.

"We can't help it. Liu Wenping sighed.

"It's already difficult to make this accuracy, let alone make screws. "Wang Zhaoya and the cableway.

"Metal processing involves thermal deformation, this precision goes down with a knife, the thread is directly deformed, the material can be solved, let the Institute of Materials help, the hardness can be plated with a layer of high-hardness metal, so that the hardness reaches the standard. Xue Lao analyzed.

He knows everything about the equipment and technology in the school and knows what to do.

Now the only key is, how do you make this thing?

There are factories in China that can do it, but if you let others do it, it will make Dongying people laugh and lose their big teeth!

"The thread spacing is only 05 wires, the depth is only six wires, and the thickness of the peach heart is 10 millimeters, which is very ......," Wang Zhao said speechlessly.

At this time, Liu Wenping suddenly said: "Old Xue, see if you can make a screw by hand." ”

"Handicraft, are you kidding? How can there be such a cow in our school!" Xue Lao scolded.

Some craftsmen can do this, but they are not at Shanghai University.

Moreover, the Dongying exchange group has been here for a few days, and it will leave early the day after tomorrow.

In other words, the screws will be taken out tomorrow at the latest!

"Old Xue, do you remember Zhou Wen?" Liu Wenping said.

"Zhou Wen, what's wrong with him?" Xue Lao wondered.

"This kid can go down with a knife, a steady 05 silk, maybe he can. Liu Wenping said slowly.

"You say that a student of the School of Economics is not engaged in economics and has switched to machining?" Xue Lao was completely dumbfounded.

No one would believe this fact.

After listening to Liu Wenping's narration, Xue Lao finally knew what happened to Zhou Wen in the workshop.

"Just give it a try, you can contact him now. Xue Lao said.