40 Two Problems with Laser Welding (Part I)

"Ahem....."

"Old General, what's wrong with you?"

"Maybe I had a cold the night before and I caught a cold.... Ahem.... Xiaofeng, let's talk about it today. ”

"Does it matter? Do you want me to call a doctor? ”

"It's okay, it's okay, I have medicine in my drawer, you can go quickly, I'm afraid of infecting you."

"But the manuscript fee and salary haven't been talked about yet?!! I think it's better to talk about this kind of thing in advance. ”

"I'm sick like this, ahem.... How else to talk about .... I'll talk about that later. ”

Boom.....

The office door is closed.

Looking at the cold door, Lin Feng was stunned for a few seconds, and then four words unconsciously popped up in his mind.

", ruthless."

Isn't it just a little manuscript fee, as for pretending to be sick?

is still pretending to be so similar, and the acting skills are the same as the old drama bones.

Indeed, the older and better a person is, the more he will be a scoundrel.

But in the face of Lin Guoxiang's tricks, Lin Feng didn't have a problem for a while.

He can only secretly compete in his heart, forget it this time, next time, he must get the field back, otherwise it will be too aggrieved.

...........

Back at Xiaofeng Mecha Company, Zhao Feifei and Zhao Yong, two brothers and sisters, greeted him first.

Seeing that Lin Feng had a few red spots on his forehead, Zhao Feifei asked with concern: "Boss, you are injured, are you okay?" ”

Lin Feng waved his hand indifferently, "It's okay, it's just that when I was testing the [Heavenly Servant] for training, I rubbed it a few times." ”

Zhao Feifei stood on tiptoe, looked carefully at a few red spots on Lin Feng's forehead, and pouted: "Boss, your bruises are not healed, I'll buy you some medicine.....

After speaking, Zhao Feifei hurriedly left the office.

"Eh...."Lin Feng was about to stop Zhao Feifei, but was stopped by Zhao Yong.

"Brother Lin, it's okay, my sister, the biggest advantage is that she likes to care about others, just get used to it."

Like to care about others? And this advantage? Why didn't I find out before?

Lin Feng was puzzled, but was interrupted by Zhao Yong's exaggerated laughter:

"Hahaha, Brother Lin, I've watched all the videos of this big battle, and the [Heavenly Servant] you drove is just one word, handsome. In particular, that beautiful tackle is simply a stroke of genius, and if our national football team has such tackle skills, it is estimated that they can win the World Cup. ”

Lin Feng was speechless, and just about to say thank you, he was blocked in his throat and swallowed back into his stomach.

"Brother Lin, your battle has justified the name of the [Heavenly Servant], and now there is praise for the [Heavenly Servant] on the Internet, in the mecha post bar, the [Heavenly Servant] originally only had a few hundred fans, but in one day, it soared to more than three million."

Lin Feng couldn't help it: "Brother Zhao, you are also the boss anyway, do you still have the heart to make a sticker?" ”

"yes!" Zhao Yong's expression changed, and he suddenly became melancholy, "I'm the boss, but I'm the boss of a monster business, and the monsters haven't come for many months, and I'm about to go bankrupt." ”

Speaking of this, Zhao Yong changed his words, looked at Lin Feng, and asked mysteriously: "Brother Lin, can you ask the old general and sell me the body of the sickle head?" ”

Well, after talking for a long time, it's still for the monster corpse.

Lin Feng shook his head decisively, "Don't worry about the corpse of the sickle head, as the first fourth-weight monster to invade, the scientists of the South China Sea Branch will definitely use the corpse of the sickle head for research." ”

"Oh!" Zhao Yong responded in frustration.

"Brother Zhao, if there is nothing else, I'll go to the factory first."

"Okay, I'll go with you."

......

"Mr. Lin is good, Mr. Zhao is good!"

"Mr. Lin is here.... Mr. Zhao is good! ”

"Mr. Lin, you are back, we are all waiting for you to guide the work..... Eh, Mr. Zhao is good. ”

The attitude of the workers towards the two can be described as different.

And the way Lin Feng and Zhao Yong replied to their greetings was also very different.

Someone said hello, but Lin Feng nodded with a smile and behaved very kindly.

And Zhao Yong stiffened his face, put his hands behind his back, held his head high, and when others said hello, he just snorted his nose in response, which was very cold.

After only walking a few steps, Zhao Yong couldn't help it, he dragged Lin Feng's arm and persuaded in a low voice: "Brother Lin, you can't do this, you are the boss, you should pretend to be serious, otherwise the workers are not afraid of you and will not work seriously." ”

But Lin Feng didn't seem to hear it, his eyes were focused, and they were all working tables.

Zhao Yong still wanted to persuade, but as soon as he turned his head, Lin Feng had already gone to the B-135 workbench, and when Zhao Yong saw this, he looked helpless, so he could only take two quick steps and follow.

On the B-135 workbench, an HBC-115 handheld laser welder is working, which is processing the electronic board for the transmission of dorsal spinal neurons of the mecha.

The mecha designed by Lin Feng needed a total of 1,324 such electronic boards.

Both workers did it correctly and there were no mistakes, but strangely enough, there were a lot of failed electronic boards in the scrap box.

Lin Feng stepped forward and couldn't help but pick up a scrap electronic board and look at it.

Lin Feng's actions made the two workers a little nervous, they had been processing electronic boards for two days, and the scrap rate exceeded 80%.

Irregular operation? No way? They are all old workers who are familiar with laser welding and cannot make such low-level mistakes.

Something is wrong with the machine? No, it's a new machine, how could something go wrong.

So what is the reason exactly? Why is the scrap rate so high during processing?

Yesterday, a Hao technical director came to check, studied for three hours, and even didn't care about lunch, and has been squatting on the workbench to find the key to the problem, and he also took matters into his own hands and processed a few electronic boards, but unfortunately the scrap rate he processed was higher than that of two workers.

For this reason, Director Hao and other supervisors met together, and everyone studied and studied together what the reason was.

It's a pity that several supervisors thought about it all night, and couldn't solve it, so they could only let the workers process it first, although the scrap rate was relatively high, but the number needed was not too much, and the loss caused should not be large.

At this juncture, Lin Feng returned.

Several supervisors found that Lin Feng was B_135 the workbench and unconsciously surrounded him.

"Mr. Lin, is it a problem with the operation of the machine?" Director Hao asked in a low voice.

Because he processes it himself, the scrap rate is higher than that of workers, and it is easy for people to think about the standardization of operation.

Lin Feng put down the waste electronic board, pondered for a moment, and shook his head: "No! ”

"Is that a material or machine problem?" Another technical supervisor asked.

"Not either!" Lin Feng replied in the affirmative.

"What's the reason for that?" All the directors were confused.

Lin Feng stood up, stretched out two fingers, and responded, "There are two main problems. ”

Two? Several supervisors glanced at each other, and couldn't help but quiet down while being speechless, listening to Lin Feng's next explanation.

"The first problem is due to the voltage."

A technical supervisor didn't understand, so he asked directly: "The standard voltage of this machine is 220V, and the three-phase voltage is 380V, which is very consistent with the electricity voltage of our factory." ”

Lin Feng shook his head, "It's the voltage frequency, this machine is a product of East Korea, and their rated voltage frequency is 60HZ, not 50HZ in our country." This change in frequency cannot be seen if it is processing ordinary parts, but when processing our electronic board, the problem is obvious. ”

The voltage frequency can cause the frequency of laser injection to be uneven, resulting in uneven welding surface, which affects the circuit transmission signal.

It's rare, but it's not absolutely impossible.

However, in the past, problems were found in the rated voltage, which generally appeared in the voltage power, because the rated voltage is different in different parts of the world, which led to this kind of problem.

But the voltage frequency is ......, and these technical directors have not thought about this aspect at all.

A supervisor continued to ask: "Then why is this problem highlighted when processing electronic boards?" ”