Magic Technology Industry

"Okay, then I'll take a look first and study together." Liu Chi nodded, took the U disk that Li Haiqing handed over, and plugged it directly into his office computer.

The four people saw Liu Chi operating the computer and came around.

Liu Chi clicked a few on the screen, found the folder, and clicked to open it.

After half a minute, Liu Chi quit the computer and said, "This screen is too small and inconvenient. Come and see it in my laboratory."

"..."

"Fuck."

"Kao Ka Kao, Liu Chi, you are a senior in the laboratory."

"How much is it."

"Local tyrant."

"Okay, do the business first, and you can just build one yourself later." Liu Chi said while turning on the control computer of the service cluster.

"It's easy to say, how much does it cost?"

"Not much. There is a server cluster on the upper level of more than 100 million, and these devices add up to about 1 billion."

"by...!"

"Stop talking, I said it was troublesome."

"!!!"

"..."

Liu Chi shook his head helplessly, plugged the U disk into the USB port, and clicked on the folder he had just looked at.

"Are you using a three-machine heart?" Liu Chi asked, frowning after taking a few glances.

"Yes, the three-machine heart can guarantee accuracy and balance."

"The triple movement can indeed guarantee the accuracy very well. However, if the accuracy of the shaft and the bearing are not good, it will be counterproductive." Liu Chi magnified the position of the shaft and pointed to the bearing position on the screen: "What is the accuracy here? Does it meet your design requirements?"

"The data is OK."

"Any problem with the upper and lower bearings?"

"no problem."

After watching for half an hour, Liu Chi asked in a puzzled manner: "Have you considered the effect of temperature?"

"Temperature??"

"Aren't you not thinking about it?" Liu Chi added after saying, "Heat expansion and contraction, brother?"

"We will naturally consider this, but this is already the highest precision bearing we can buy, and we asked the manufacturer, and they said it can meet our requirements." Chen Song was a little emboldened.

"They said, you just believe it, have you tested it?"

"We are not you, we have a ready-made laboratory." Li Haiqing said with contempt.

"That's right." Liu Chi nodded and said, "If the accuracy is not up to the point, it is basically a material problem."

"The main reasons for the accuracy of machine tools are normally divided into three points; 1 the change of the workshop environment temperature; 2 the motor heating and mechanical movement friction heating."

"3 The influence of cutting heat and cooling medium causes uneven temperature rise in various parts of the machine tool; resulting in changes in machine tool shape accuracy and machining accuracy."

Seeing that the three of them didn’t speak, Liu Chi said: “I’ll give you an example, a 70mm×1650mm screw is machined on an ordinary precision CNC milling machine, and the milled workpiece is 7:30-9:00 in the morning and 2:00-3 in the afternoon. Compared with the workpiece processed by 30, the cumulative error can vary up to 85m."

"Under constant temperature conditions, the error can be reduced to 40m!"

"For another example, a precision double-end grinding machine for double-end grinding of thin steel sheet workpieces with a thickness of 0.6 to 3.5mm can achieve a dimensional accuracy of mm and a curvature of 200mm×25mm×1.08mm steel sheet workpieces at the time of acceptance. Less than 5m in full length."

"But after 1h of continuous automatic grinding, the size change range increased to 12m, and the coolant temperature rose from 17°C at startup to 45°C."

"Due to the influence of the grinding heat, the spindle journal is elongated and the bearing clearance in front of the spindle increases."

"..."

"So there is no way to solve it?" Li Haiqing asked unwillingly.

Liu Chi thought that he had something to do with the above, maybe there was a way, so he asked the three of them: "By the way, what level of bearings are you using now?"

"P2! This is the highest level you can buy."

"What we bought was imported." Chen Song added.

"That should be no problem, but in my opinion, the accuracy of your bearing still does not meet the requirements of your design. Under the action of the tripartite force, if it is at room temperature, the accuracy error is at least 0.05mm."

"And I just looked at your design requirements, your accuracy is 0.03MM."

"Then what to do, this is already the most important high-precision bearing?" Li Haiqing scratched his head embarrassedly.

"If there is no way to solve the bearing problem, I think the accuracy of using one movement is higher than you using three."

"Think about it, with one movement, there are only two bearings in total. If you use three movements, the movement has six bearings, plus four on the shaft, it becomes 10, tolerance + tolerance, you Also consider the effect of force. Isn’t the error greater?"

"I think what Liu Chi said makes sense." Li Haiqing said to Xiao Yunhao.

"Or, get one out and try it out first?"

"can."

"I'll also help you ask if there are bearings and movement with better accuracy." Liu Chi finished speaking and turned off the folder on the screen.

"Row."

"Let's go, I'll treat you to dinner when it's almost time to order."

"Wait wait, one hot pot per person."

"You..." Liu Chi rolled his eyes.

"Fight the landlord, divide the field, and I will definitely take one back when I come, who will let me not get it online." Li Haiqing said confidently.

"Okay, give you one." Liu Chi shook his head helplessly.

"..."

After sending these cheeky guys away, Liu Chi called Chen Luguang and mentioned the movement and bearing.

For Liu Chi's request, the above naturally attached great importance to it, and naturally took it seriously.

Who knows if some black technology will come out again.

After Liu Chi received the movement and the bearing, he called Chen Song to take it away.

Chen Song naturally came into the line of sight above.

......

With the passage of time, it hasn't waited for the acquisition alliance to find a corresponding solution.

On the Internet, there was a news that the jaw dropped.

Jingxin Group was blocked by mysterious forces.

That day, the stock price directly fell the limit at the close of the market!

......

"?"

"???"

"Has it been found out? Who is it?" Yu Kang angrily asked the incoming assistant.

"Mr. Yu, I haven't found it yet."

"Regardless of the method, you must find out who it is." Yu Kang gritted his teeth with a dark face.

10%, the entire company evaporates 5 billion directly. What's the joke? If you don’t survive a few more times, then the entire Jingxin will fall on the wall.

"Yes!"

......

The next day!

Yesterday afternoon, Jing Xin’s sudden smashing of the market had already spread, and everyone craned their necks and waited to see what happened today.

That local tyrant is so domineering.So cruel, I don’t know if today will be...

Countless people are staring.

9.30!

opening!

"boom......"

At the moment of opening, a super big order was hit directly!

It's like a nuclear bomb exploded!

The salted fish, who wanted to struggle upwards, was directly blown into a dead fish and couldn't turn over.

10%

Limit down.

!!!

All of them were shocked.

This, this, this is too overbearing~~~

Too ruthless!