After entering the workshop, there are three glass doors in succession from the main door to the interior of the workshop. There is a distance between each two doors, and the surroundings are also separated by glass.

In the first space, fans are arranged on the top and both sides to blow away the dust on people entering the workshop.

In the second space, static electricity is removed.

This is the first constant-temperature dust-free precision machining workshop in China. Installed inside are CNC lathes, CNC milling machines and three-axis machining centers from the United States. There are not many in number, but each one is treated as a treasure. This is the Sino-U.S.

After the restoration of diplomatic relations, the Americans privately sold a batch of advanced CNC machine tools to China.

How much foreign exchange was spent and how much effort was expended is probably unclear to those who were not involved. It took four years from negotiation to the final equipment delivery to China.

The CNC machine tools in the entire workshop are all advanced strategic-level technical equipment embargoed in the Batumi Agreement!

It was not easy to come by, so domestic personnel naturally regarded these high-end and top-level processing equipment as offerings to their ancestors, fearing that their ancestors would give up their work one day.

Therefore, we specially set up such a workshop.

After a fault occurs, a group of technical staff often have to be mobilized to hold a meeting to discuss, formulate various plans, and the leader approves a series of processes before troubleshooting can begin.

Xie Kai knows very well that he used to laugh at the technicians of his father's generation. As they grow older, they understand why their fathers treat these devices with such care.

Domestic technical strength has advanced by leaps and bounds, so they are qualified to go on strike regardless of the failure of top-level equipment.

broken?

You can repair it casually, they have rich repair experience; even if it can't be repaired, it doesn't matter. If it can be produced in China, just replace it. If it can't be replaced, buy it! The government has plenty of money.

Not in this era. The total number of CNC machine tools in the country is not even as large as that of a medium-sized mechanical processing factory in Xie Kai's time. The technicians have no accumulated experience, so they naturally have to be careful. Domestic production cannot be produced, and foreign countries are blocked. If you have money, buy them.

Not even that, let alone no money.

Both technicians and managers in the workshop wear white coats and white anti-static caps.

Even if the equipment broke down, it didn't stop. The technical workers were being trained, and the technicians were discussing maintenance plans around the machine tool masters who had been cleaned spotlessly with a sullen expression.

Seeing a group of people coming in, everyone looked over.

"Thank you, do you have a solution?" A young technician wearing glasses asked Xie Jianguo eagerly, regardless of the big guys coming in.

Xie Jianguo nodded, "Get ready. Remove the PLC control system. Prepare to replace the burned chips and electronic parts inside."

"Thank you for your work, this..." The young man looked at Xie Jianguo in surprise.

"Tear it all apart?"

"Is it approved by the superiors?"

"What should I do if the system program is replaced when the internal chip is replaced? What should I do if the chip does not match?"

Almost all the technical staff gathered around and asked their doubts.

They knew the fault, but they didn't dare to take it apart and replace it because of technical problems.

The Americans only provided simple technical information for the equipment. Unless they have a thorough understanding of the inside of the PLC control system, who would dare to replace it?

After the replacement, the system had to be programmed in machine language again. I didn't even understand the hardware, and the programming aspect was even more of a problem.

"Don't worry, it'll be fine." Xie Kai said to the technicians, who were the youngest and about ten years older than him, and then turned to Xie Jianguo, "Dad, lend me your maintenance tools, a complete set.

"

A bunch of military bosses were watching, and Xie Jianguo couldn't say anything discouraging.

I immediately ran to the maintenance room to get tools.

The technicians in the precision workshop all know Xie Kai, and they don't understand what this guy wants to do and why he has the final say.

"Aren't you going to the maintenance room?" Zheng Yucheng asked Xie Kai.

Xie Kai shook his head.

"Director Zheng, are you asking Xiao Kai to repair these machine tools?" The technicians were shocked.

"How can this be possible? We have been working with these machine tools for almost three years and we can't say we fully understand them. Many technical problems cannot be solved!" A skinny technician in his fifties stopped him eagerly. "Xiao Xie, this is not a joke.

Even your dad can’t do anything about it..."

"Uncle Cao, don't worry, it's not a big problem." Xie Kai said to the old technician. He knew that the other person was worried that he would cause bigger problems and the losses would be greater.

"Only if someone has that diamond will they take on this porcelain job." At some point, Sun Jiaming appeared.

Xie Kai didn't even look at him. He turned to the major general and said, "Chief, the internal structure of this thing is sophisticated and complex. It cannot be disturbed during maintenance. Sun Jiaming is here, I am nervous..."

"You..." Sun Jiaming's anger came out, "Are you nervous? Why can't I see it? I've told you, the country has spent millions of precious foreign exchange on these equipments. If you completely destroy them,

Damn it, shooting him a hundred times is not enough!"

"You can fix it! Why don't you let your son come? Isn't your son also a technician here? Isn't he going to be promoted to an engineer?" The old guy hit his gun. If you don't get rid of him today, it will be your father's in the future.

Work is annoying.

Sun Jiaming is not a good guy. He doesn't wear small shoes for his dad, which is not in line with his style.

"Secretary Sun, you go out first!" Zheng Yucheng frowned and glanced at Xie Kai, then said sternly to Sun Jiaming.

He was also upset. Sun Jiaming knew that he couldn't deal with this kid, so it would be better to just stay on the sidelines!

Xie Kai's previous performance in the conference room made the military boss look at him with special eyes. He will probably be specially recruited by a military-affiliated university soon, and one of his requirements is that his father be the chief engineer of Hongqi Machinery Factory.

I mentioned the matter of Sun Jiaming's son twice in a row. Will the military be good? If it is true, Sun Jiaming will be finished.

Sun Jiaming was unwilling to leave, but the major general said to the middle-aged officer next to him who had always shown a strong interest in Xie Kai, "After you come down, go and check for yourself what Comrade Xie said."

The attitude of protecting Xie Kai is very obvious.

Sun Jiaming felt cold in his heart and left with a look of hatred on his face.

"No one will bother you now, can you start working?" Major General Xie Kai's attitude was not as good as before.

It is not a good thing for such a young child to be good at playing tricks.

Xie Kai shrugged indifferently and looked toward the maintenance room. His father was pushing a trolley filled with various tools.

"Xiao Xie, are you really coming?" Cao Feng looked worried, but when Xie Kai nodded, he felt helpless, "Let's give you a hand."

He hoped that their help would make the consequences less severe.

"It's a good relationship, Uncle Cao. Could you please help us dismantle the PLC controller and open it..." Xie Kai would not do anything if he could.

In the past, if there was any problem in the factory, he would always sit aside and drink tea and direct the newly graduated interns to work.

Under Xie Kai's command, the control systems of three three-axis machining centers, two CNC milling machines and five CNC lathes were all removed and placed on a stainless steel workbench in front of a machining center.

"It's all taken apart and we're going to replace the parts inside. How can we do it without taking it apart?" Xie Kai said.

Everyone looked at Xie Jianguo, who nodded before starting to take action.

"Speed ​​speed sensor, proximity sensor..." Xie Kai quickly checked the entire control system and said to Xie Jianguo, "Dad, these are all needed. Some of the ones that are not burned out are prone to problems and must be replaced...

…”

"What model do you want?" Xie Jianguo asked.

"Find one of the various models we have in stock. Let's just modify this one." Xie Kai is now not afraid that his father won't accept it.

For various electronic parts from decades ago, he really couldn't figure out the model number, so he had to look at things.

He didn't care about the military bosses, he just wanted to impress them and make his father, Xie Jianguo, chief engineer, secure his position.

The military bosses looked at Xie Kai and did not speak. They only occasionally discussed in low voices.

Zheng Yucheng invited military personnel to wait in the office, but was rejected.

Xie Kai boasted in the conference room that the military bosses were fighting with him.

Zheng Yucheng stopped urging and instead ordered people to bring some stools over, make tea for them, and let the military personnel drink tea while watching Xie Kai perform repairs.

When Xie Jianguo saw his son violently pulling out the chip from the PLC control system motherboard, he was so nervous that he broke into a cold sweat. Xie Kai used a multimeter to check every electronic component on the motherboard. If something was broken, he used a soldering iron to melt the tin and remove it.

, plug it in, just pinch it, pull it out, and throw it aside.

The movements were extremely rough, which was in sharp contrast to the nervousness and caution on the faces of the technicians when they even placed the entire control system box on the workbench.

However, when Xie Kai quickly soldered a diode on the motherboard of a control system, Xie Jianguo breathed a sigh of relief.

Afterwards, various parts were replaced. Most of the electronic parts were larger than those in the system. These were made in China. Xie Kai didn't care. He took a look and threw the unusable ones aside, and put the usable ones directly on the motherboard.

Go up.

The control system originally used the 8-bit 8048 chip developed by Intel in 1976. Xie Kai replaced it with Motorola's 16-bit 68000 microprocessor. He changed the entire control circuit structure beyond recognition.

I can see that the people next to me are all frowning.

It took more than two hours, and it was almost noon before Xie Kai finished it.

"Okay, you do it like this, and do it with other motherboards. I'll write out the instruction set needed by the system first, otherwise it will be in vain." After Xie Kai finished doing it, he pushed the entire motherboard forward and let out a breath.

, said a little tiredly.

Let others follow his example without fear of getting various electronic components wrong.

Then, he didn't care, took his father's pen, and began to quickly write the instruction set of the machine language code on Xie Jianguo's work notebook.

Although these CNC machine tools are not the most advanced, they are relatively advanced. After Xie Kai returned to Hongqi Machinery Factory after graduation, these old machines are still in normal use. They have been used for decades, and all the programs are clear.

Incomparable.

"Lao Xie, are you sure this is your son?" Cao Feng asked Xie Jianguo, who was in a daze, as he looked at the PLC control system that had been quickly repaired and was not even checked on the workbench. He then started writing programs without any pause.
Chapter completed!