In this era, artificial aging is heat treatment to eliminate the internal stress of mechanical parts during casting or machining.
VSR is to make the parts vibrate for a long time and high frequency, so as to disperse and disappear the visible stress of molecules concentrated in the parts due to processing.
Of course, it''s impossible to disappear completely.
Vibration aging is mainly used in military industry, because military industry has special requirements for some materials. For example, various aviation aluminum components used to form aircraft in aviation system; Aluminum alloy shell of space system missile and some aluminum alloy structural parts; Some key parts of the weapon system using aluminum alloy or titanium alloy on the warship
In China, shock aging is basically introduced from abroad after entering the 21st century. It is rarely used in civil industry and is almost difficult to see outside.
The more precise the parts, the higher the requirements for the amount of residual stress in various parts. The less stress inside the part, the less likely the part is to deform, because the deformation of the part has occurred in the process of stress release.
Often, after artificial aging, high-precision finishing will continue.
Such a finishing process requires that the tool speed is high enough, the tool is sharp enough, and the tool walking amount is extremely reasonable. Otherwise, the stress generated in the machining process will be too large, so that the product cannot greatly improve the design accuracy.
The more complex the key parts of the equipment, the longer the production cycle, which is to remove the intermolecular stress in the material and make these stresses as small as possible. Such parts are often processed repeatedly. The most typical one is the laser transmitter used on Chinese warships (there should be many such products abroad, but Hulu has not seen them. After all, foreign military products, except some ordinary parts on laomaozi''s warships, will be processed in China, and some other high-grade precision equipment, It is basically impossible to outsource to China for processing. Hulu once had the honor to process a number of old maozi warships, which seem to be the parts on destroyers. It mainly processes some gears with higher precision than ordinary domestic military industry and supporting shafts and other parts).
Laser transmitter is a new high-end weapon vigorously developed by all countries in the 21st century.
China has never disclosed or reported anything about it, but it has been studying it since the 1990s and has made breakthrough progress. Basically, it will wait until the first decade of the 21st century is over.
The main materials used in large laser emitters are titanium alloy and special aluminum materials, especially those precision parts processed from titanium alloy materials to install countless circuit boards and spotlights. The production cycle directly exceeds two years!
Only the natural aging after primary processing takes more than half a year.
Even after such a long natural aging, artificial aging has to be carried out many times before semi finishing.
Only in this way can we make all kinds of precision parts completely deformed, and finally keep the structure of these parts stable through some complex processing means.
Ordinary people know that in the process of light transmission, as long as it is slightly blocked, it will produce refraction. The highest requirements for various parts are the parts and products on the optical instrument. Because of the cost problem, many research institutes in China do not establish their own mechanical experimental workshops. After designing the products, they will find some small processing plants with strong technical strength for trial processing of the products, and assemble and verify them after processing.
After the sample assembly is completed, verify and improve the design according to the experimental conclusions, or hand over the finalized products to the state for production or sealing up by those military factories with strong technical strength as technical reserves.
Fortunately, the precision of the key parts on these CNC machine tools produced by Jiuyi heavy industry has not reached that level.
The technology of 91 heavy industry has not reached the level that many technologies that do not need to be used temporarily need to be locked in the technology storage room for technical reserves.
"Mr. Yun, Brother Yun, dare you be busy?" Yun Fei had just returned from Hal heavy industry. Before he could return to the company, he was stopped by the exit of the railway station.
"Shit, what''s the hurry? At least let me go home and take a bath and have a good sleep, okay? " The train speed these days, let alone!
Although it is a soft sleeper workshop, it took several days from the place close to the northeast to Chengdu, which is located in the center of the southwest. I feel sore all over by car!
Yun Fei now admires those people who flock to the southeast coast from all over China to make their pockets bigger. They don''t sell tickets, and even stand from the starting point to the destination!
It''s a few days and nights!
Pay tribute to China''s first generation of migrant workers! Although many of them will become local tyrants in the 21st century and have built a lot of cabbage, at least the hardships they are eating now deserve everyone''s respect.
Only those who are cruel to themselves can develop and achieve something.
Even, Yun Fei hates the era when there are only green cars!
If it weren''t for those who dislike themselves and let 91 airlines fly to taisao Bao in the northeast, Yunfei would never want to suffer this pain and suffer this crime!
"My ancestors, our mobile phone factory equipment has arrived, but where are the workers you promised? Brother, we don''t play like this. You know, I''m so poor that I can''t sell my underwear... "Fat Li has had a very hard time these days. It''s too unhappy to have no money.
Trump mobile phone feel shy at the end of the city. "When you talk about the mobile phone factory, you are halfcooked."
Now the whole factory is handled by Li Lu and Sanjian in Beijing. However, he himself is busy with the matter of 91 heavy industry because Taiwan CNC machine tool factory has entered the Chinese market on a large scale. He has not even asked about the mobile phone factory.
The 500 highly educated assembly line workers promised by the North Korean side did not arrive in China at the end of June because they needed his boss to negotiate with the Chengdu City Government in person to help the North Korean personnel apply for employment visas. Now it is early July
When he first returned to Chengdu from Jinling, Li Lu also urged him, but he was eager to expand the production capacity of Jiuyi heavy industry and found a suitable production capacity supporting factory. Unexpectedly, the fat man who lost all his wealth in Las Vegas could not help it.
I don''t know where the goods came from. I know I arrived in Chengdu today!
Without money, Trump and idle away in seeking pleasure, the goods were kept in Chengdu City to help his cousin to run things.
It hurts!
"Xiao Yun, the technicians in Germany will fly from Huadu to Chengdu tomorrow. Our workers are not in place. The overwhelming publicity you said is not even a shadow. We can''t compare with you, Ye Fei was very dissatisfied with Yun Fei''s attitude of ignoring the whole factory after several people took over.
Although the money of the mobile phone factory was paid by Yunfei alone, you know, they exchanged the entire United Airlines for more than 40% of the shares!
Although United Airlines, which has changed its name to 91 airlines, is now losing more and more money, if yunfeixian Airlines has a serious loss and sells these aircraft, it will have to sell hundreds of millions at the cheapest price!
"Brother, when am I not interested? Don''t worry, I know it well! " For ye Fei, Yun can''t be like Li Zhuang.
No matter how he offends Li Zhuang, he has the absolutely perfect imperial Sister Li Lu to support him, and can suppress Li Zhuang''s cousin. Yun Fei is not worried about what the bear child can do to himself.
But ye Fei can''t.
Especially Ye Fei, who has no purpose for Li Lu now.
Ye xuanmei can suppress this guy, but Yun Fei is not ready to use ye xuanmei''s double-edged sword.
He now wants to keep a distance from ye beauty pageant. Even if cabbage really comes to him with his son, he is not ready. The old goods have too strong background and too many minds. More importantly, the old goods are too unruly.
In China in the mid-1990s, moral integrity was a very valuable thing.
"Are you interested? The company here hasn''t improved at all, but you went to southern Anhui to buy a home appliance company? Brother, can you not treat my brothers as fools? " Ye Fei is very dissatisfied with the guy who doesn''t take investors seriously and only cares about making money by himself.
Very dissatisfied.
"How can I? I''m busy these days! The acquisition of Wanyan was just an accident, an accident... "Yun Fei explained.
At first, he really didn''t want to get Wanyan''s shares.
Forced by Taiwan CNC machine tool factory and facing the pressure of lack of money, he had to change his purpose of simply saving Wanyan into taking advantage of Wanyan''s opportunity to circle money to support Jiuyi heavy industry.
The profits of mobile phone companies are also very considerable, but it is far from easy to circle money without strong competitors like Wanyan!
"Brother, it''s not that we threaten you. If our mobile phone company doesn''t earn as much as you promised, you should weigh the consequences yourself. Don''t blame your brother for not taking your brother-in-law seriously at that time! Anyway, you can do it yourself. Anyway, what you told our brothers to do, the brothers did it strictly according to the requirements, and the rest depends on you... "Ye Fei said, and without waiting for Yun Fei''s answer, he took fat Li and zhuganluo and left stunned Li Lu and cold sweating Yun Fei.