Take Off My Aviation Era

Looking at the base step lengths that are walking far behind Zhuang Jianye all the way, whether it is the deputy director or the person in charge of the aviation manufacturing plant who is rigid with Zhuang Jianye, there is one of them. It is no longer silly, but thorough. Of petrochemicals.

You know that is the world's top electrochemical device manufacturer, Kobayashi Chemical's machine-based step length.

It’s not easy for the heads of domestic manufacturing companies to meet him. It’s fortunate to have to wait in line to buy equipment. The long waiting period is the norm, so the machine’s step length always looks at people through the nostrils wherever they go. , Where did you ever see this gentleman begging for someone so lowly?

And is he still a Chinese who is often added to doubt his life by his frequent price increases?

So that the people in charge of these aviation development factories have a sense of absurdity whether they are living in a dream or traveling through parallel worlds. There is no way, but the existing values ​​and worldview are really broken, making them feel this The world is a bit too crazy, the mouse has already served the cat as a bridesmaid.

"You guys~~~~you guys~~~~"

When the crowd was in a daze, the old chief teacher who was walking in front suddenly spoke, and then looked at the prodigal grandson with a grandfather, with an expression of hatred for iron and steel, and swept the crowd, including the deputy director, coldly. The people in charge of the Hangfa Factory stretched out their hands and clicked them one by one, and said with great regret: "Can't you have snacks? They are all in their forties and fifty years old. I have to bury my yellow picture on the top of my head. Is it okay to scold you to sober?"

The people who were in a daze were even more at a loss when the chief teacher scolded them so unreasonably. I don’t know why the chief teacher suddenly went crazy, so a person in charge of the aviation development factory who had a good relationship with the chief teacher was bold and careful. Asked: "Chief Master, what do you always do..."

"What am I?"

The person in charge of the aviation development factory who inquired hadn’t finished speaking, he was stunned back by the chief teacher, and immediately pointed at Zhuang Jianye and Jiji Step Length, who were going farther and farther: “The key is them, World-class high-end equipment, are you going to give up your hands to the Japanese again? Every day you look at your political achievements more than your fate, but the result? When there is a real chance to take the political achievements, but like a second fool, you look at it. Opportunities flowed by my side. I didn’t even bother to stretch out my hands. I was too old, and my body was really not allowed. It didn’t take much. If it were placed three years ago, I would take off my shoes and pump a dozen of them one by one. Ear scraping, kill you if you don’t wake up!"

"Chief Master, you calm down, you calm down..." Seeing the Chief Master is really angry, another person in charge of aviation quickly stepped forward to comfort him. Not only that, this one also hinted that the assistant would take his own The quick-acting Jiuxin pill is ready, for fear that the boss's anger will be troublesome, so this is also polite: "We all know the truth. The problem is that we don't know the new technology of Ascendas Group...especially the machine base step. What the long said NB-6857 six-axis composite machining center is, we have not even heard of it. You always say that we hand over others, which is really wronging us..."

The person in charge of the aviation development factory took three points of grievances and seven points of sincerity. He said something that was true and gentle, and the key was to be reasonable. Others nodded one after another. This is indeed the case. NB-6857 6-axis The name of the composite machining center is very big, but what exactly does this thing do? It's clear that there is no one in the presence. Naturally, I don't understand it. Since I don't understand, where can I know whether the applied technology is good or bad?

"I am impatient..."

After listening to other people’s explanations, the Chief Master sighed and depressed a little bit, but he still said loudly, “But you also have to understand, because you just saw the metal cores and wave springs in the blades of the high-pressure turbine guide. The film cooling group holes on the top are made with the NB-6857 six-axis composite machining center."

"Oh? So this device is also an electrochemical device?" The deputy director intervened when he heard the words, and was about to continue speaking, but was glared back by the chief teacher: "If it is an ordinary electrochemical device, I Is it necessary to let you live with a chance?

It is a composite special processing equipment that combines two different processes of electric spark and electrochemistry..."

Speaking of the general manager, he slowly explained the basic situation of the NB-6857 six-axis composite machining center.

The film cooling holes on the turbine blades of the original aeroengine generally have three machining processes, one is the electric spark process, the second is the laser process, and the last is the most advanced electrochemical process.

Among them, the EDM process is the most mature and has the fastest efficiency; the laser energy density is the highest; and the electrochemical process has the best quality.

However, despite the advantages, the shortcomings of these three processes are also obvious. Due to the discharge effect, the EDM process is easy to form a recast layer around the hole, micro-cracks and burr sharp edges and other sequelae, which affect the overall structural strength of the blade, resulting in a decrease in quality .

In addition to all the shortcomings of EDM, the biggest shortcoming of laser is that the energy density is too high, and the thick material is still good. If it is thin, it is easy to cross the outer clamp or workpiece once the control is not good.

The electrochemical process has not been determined by the above two processes. It can almost process the most perfect film cooling hole at one time. However, this process has an unavoidable problem, that is, the production efficiency is too low.

For a general electrochemical single-hole machine, it takes at least 120 hours to make a low-pressure turbine blade with more than 1,200 film cooling holes.

If it is a two-hole machine, it can take less time, but it will take 80 hours to complete.

And for an aero engine of various types of guide blades, there are hundreds of turbine blades together, each of which takes 80 hours, and the length of the hundreds of them can make the scalp numb.

This is still the amount of one aero engine. The mass-produced aeroengine does not produce hundreds or thousands of units. The sum of these lengths is definitely an astronomical figure.

Of course, some people will say that if there is a two-hole machine, there should be a three-hole, four-hole or even a five-hole machine, so the efficiency is not high?

The idea is good. The problem is that the electrochemical equipment has no way to separate the extra drilling chemical injection tube except for the two-hole machine.

The reason is also very simple. The medium of the electrochemical device is a highly corrosive and toxic chemical synthesis agent. Driving such a reagent requires special materials and accessories, and the cost itself is very high. It is already possible to accurately control the two injection holes. At the limit, more than three holes can't be done at all.

Therefore, if you want to quickly process a batch of film cooling holes~www.readwn.com~, you can only expand the scale of electrochemical equipment and use the so-called machine-sea tactics to pile up batches of film cooling holes.

Just doing so, the cost will be high to a terrible level.

The NB-6857 six-axis composite machining center of Ascendas Group has developed high-quality and efficient film cooling hole processing equipment based on the contradiction between quality and efficiency that plagues aviation film cooling hole processing.

"... The NB-6857 six-axis composite machining center has both the high efficiency of EDM and the high quality of electrochemistry..." After the introduction, the general manager concluded: "So it is processing high-precision film cooling holes. The efficiency is quite high. Normally, with about 2000 high-pressure turbine blade film cooling holes, the NB-6857 six-axis composite machining center can be completed in less than eight hours."

"Eight hours?" The person in charge of the Aviation Development Plant who prepared the quick-acting Jiuxin Pill exclaimed in surprise, and the next moment he left the surviving chief teacher behind and chased after Zhuang Jianye, who was about to enter the maintenance workshop. While running, he shouted: "Mr. Zhuang, we bought your NB-6857 six-axis composite machining center. You can ask for a price, as much as you want..."

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