Zhang Can took care of Li Tianfeng in the hospital for a day, and the first thing Li Tianfeng saw when he woke up was Zhang Can. Zhang Can is also a technician in the production line of large plate parts, entered the factory one year later than Li Tianfeng, and is one year younger than Li Tianfeng, and has always called Li Tianfeng Brother Li, and the two have a good relationship.

Li Tianfeng smiled slightly and said, "It's okay, it's okay, it's completely fine." ”

After the two exchanged a few words, several colleagues came up to ask Li Tianfeng, and their tones were full of enthusiasm and concern, Li Tianfeng is usually very popular in the office.

Li Tianfeng usually looks good, he won the title of outstanding trainee in the first year of work, and the outstanding trainee of factory E is selected once a year, which is produced from the batch of new college students who entered the factory that year. In the same period that year, only 10 of the more than 100 college students received this honor, Li Tianfeng was one of them, and only two people in the entire precision machining center received this honor that year.

Li Tianfeng's usual worksheet is good, and now he is still the technical backbone of the large coil line, and the parts processed by the large coil are all the most precise and critical parts of various types of engines, such as compressors, and the important key parts of the turbine part.

Li Tianfeng's exposure in front of the leaders is also relatively high, and his work has been thriving, but this qiē has passed, and the current Li Tianfeng's strength is not what it used to be, and he will start again, and from today onwards it will be the new Biqu Pavilion www.biquge.info.

Sorting out his thoughts and turning on his computer, Li Tianfeng looked at the CAD, UG, CAPP and other commonly used drawing and programming software in the computer.

If the company's senior management knew Li Tianfeng's thoughts at this time, they would definitely be angry, these software are the latest version, and they are still absolutely genuine, and the company has spent millions of yuan for these software.

……

At nine o'clock in the morning, there were twenty or thirty people sitting in a large conference room at the company's headquarters, and in the middle was actually the deputy chief engineer of the E factory, the chief technologist Liu Qingshan, at this moment Liu Qingshan had a tense face, and the rest of the people were also solemn, and the atmosphere in the whole conference room was very dull.

"Why haven't the people from the precision machining center come yet, playing the piano randomly." Seeing that everyone was basically there, and the people from the precision machining center did not appear, Liu Qingshan's tone was a little angry.

Liu Qingshan has always been known for his majesty and rigor, and this meeting is dedicated to the processing of the blade disc of the first stage compressor of the turboshaft C engine processed by the precision machining center.

The turboshaft C engine is a gift model for the 60th anniversary of the founding of the People's Republic of China, which will be equipped with China's latest helicopter gunship flying over Tiananmen Square, and the aircraft manufacturing of the helicopter factory is nearing completion, just waiting for the turboshaft C engine of the E factory to be sent over.

Aero engines have always been the weakness of our country, some new models do not have domestic engines, such as the latest J-20 fighters are equipped with Russian aero engines, and the main models in service J-10 are also equipped with a large number of foreign cores.

One of the key parts of the turboshaft C engine, the first-stage compressor blade disc had a problem in the machining, and the two pieces were scrapped, and the last two pieces remained.

This batch of turbine blanks is not easy to come by, domestic materials are not good at all, these blank materials are grandpa grandma spent a high price to buy back from Russia, four blanks a total of one million, belongs to the sky-high price, good guys, two pieces of scrap in one breath.

With a "squeak", the door of the conference room was carefully pushed open, and Peng Xuehai, director of the precision machining center, and Cheng Gang, the technical director, walked in sweating.

Seeing the majestic Liu Qingshan, Peng Xuehai was embarrassed, his face turned slightly red, and he was about to speak, Liu Qingshan waved his hand and said, "Don't say it, quickly find a place to sit down, and start the meeting now." ”

……

Li Tianfeng didn't know that Peng Xuehai, the director of his top boss precision machining center, was in a meeting in the group company and was being criticized.

However, it didn't take long for Li Tianfeng to put down the mouse tastelessly, thinking in his heart, it's really tasteless, it's really backward, and it can't be compared with the advanced software in his memory.

Thinking like this, at this time, a young girl with a youthful face came in from outside the craft technology room, although she was wearing overalls and a work hat, she could not hide her beauty.

The young girl walked in, and immediately someone cheerfully coaxed: "Li Tianfeng, someone is looking for you." ”

As soon as the voice fell, many people around laughed kindly.

The young girl's face was slightly red, and she walked in with her head bowed with the processing card in her hand, and seemed to have a lot of courage to walk next to Li Tianfeng's position, and the girl put the process card on Li Tianfeng's table, and then said: "Li Gong, I am processing this process, processing a first piece, the drawings require that the position degree of these 16 holes is two wires, but the position degree of the first piece I processed is three and a half wires after being measured by the three-coordinate measuring instrument, what should I do?" ”

A trace is one hundredth of a millimeter, that is, 0.01 millimeter, and the people of Factory E are accustomed to calling this unit "silk", and this unit is very commonly used, but the unit of "micron" is rarely used.

One micron is 0.001 millimeters, and one micron is equal to 10 microns. One thousand microns is equal to one millimeter.

In the field of precision machining, the units "silk" and "thousandths" are very commonly used, and everyone is used to it, and Ouyang Feifei is the same, it is customary to say two wires, three and a half wires.

Li Tianfeng looked at this process, this is the processing technology specification of the 10th stage wheel disc of the turboprop C engine compressor, the turboprop C engine was imported from Lao Maozi in the early 80s of the E factory, and it has been produced for more than 20 years.

The turboprop engine is also the turboprop engine, the turboprop C engine is a mass-produced model, and the E factory produces hundreds of turboprop C engines every year, which is mainly equipped with a kind of main transport aircraft of the military.

Although China is a military power, but also an economic power, but the military's air transport capacity is not strong, and the United States, Russia and other air force powers compared with the United States, Russia and other air force powers, the military's main transport aircraft maximum take-off weight is more than 70 tons, and the United States C119 transport aircraft, compared with the United States, not a little bit worse.

The reason for this is that China does not have an advanced engine, and the main transport aircraft of the military is still using the turboprop C engine produced by Plant E, and one such transport aircraft is equipped with four turboprop C engines.

As a product of Lao Maozi in the 70s of the last world, the turboprop C engine is now obviously backward, but the E factory still has to produce a large number of products every year to meet the needs of the military, which shows how backward China's military transport aircraft are.

Li Tianfeng looked at the process card handed over by the girl, the process card was compiled, reviewed, and approved by the current E factory, the preparation of the year "Huang Xuewen" is currently the deputy director of the Engineering Technology Department, and the audit "Liu Qingshan" is the total Liu just mentioned, and the approval of the year "Yang Xianfeng" is already the chief engineer of the E chief, and the third person of the E factory.

"Li Gong, how is it? Is there a way? The young girl Ouyang Feifei had already leaned down and asked Li Tianfeng softly.

The area of the process technology room is very large, the whole office is two or three hundred square meters, dozens of one-grid card seats, each technician has a card seat, Li Tianfeng is sitting in his own position, it is also a card seat, Ouyang Feifei leaned down like this, Li Tianfeng obviously felt a few strands of soft hair touch his cheeks, a little itchy.

At the same time, Li Tianfeng also smelled a faint fragrance of a girl, Ouyang Feifei is a front-line worker, an operator of a CNC machining center, there is no smell of oil and coolant on her body, her work clothes are clean, and her body is neatly cleaned up, this is a girl who loves cleanliness.

Many people are whispering in private, saying that Ouyang Feifei must have a little bit of interest in Li Tianfeng, and Li Tianfeng himself has heard such rumors more than once, and he laughs it off every time.

Ouyang Feifei often comes to Li Tianfeng, but it is basically a problem at work, and after work, the two have little intersection in private.

Li Tianfeng quietly glanced at Ouyang Feifei next to him, and when he saw Ouyang Feifei, who was fair-skinned and had a good face, Li Tianfeng's heart moved slightly, and he thought in his heart, Ouyang Feifei is still relatively beautiful.

Seeing that Li Tianfeng glanced at himself, Ouyang Feifei smiled generously, and then said, "Li Gong, how is it, is there a way?" ”

Li Tianfeng looked at the process card, the process card was compiled in the early eighties, after so many years of production and continuous improvement, there should not be much problem in itself, just looking at the process card can not see any problems.

So Li Tianfeng stood up and said, "Let's go, let's go to the scene to take a look at the parts." ”

The two of them went out of the process technology room one after the other, entered the processing site, and as soon as they entered the processing site, it was obviously another atmosphere, thousands of square meters of processing site, various processing equipment, a large number of workers, and a lot of semi-finished parts.

As an advanced precision machining center, the environment is not bad, not as dirty and messy as some mechanical processing plants, the green paint floor is clean, almost can shine out of the figure, and the processing equipment is also placed neatly.

There are a lot of domestic first-class, even top-notch processing equipment, good processing equipment is naturally imported from abroad, but due to the technological blockade of developed countries, it takes a lot of trouble to buy these equipment.

Take the precision five-coordinate CNC machining center operated by Ouyang Feifei as an example, this equipment was bought from Switzerland by a Singapore company, and at that time, the Singapore company also signed an agreement with the Swiss side, and this equipment could not be used for military production.

Obviously, the Singapore company bought this equipment for factory E for military production, and it was still used for the production of key parts of aero engines, and in order to cope with and conceal the Swiss side, this equipment had to be disassembled and assembled every two years, because the Swiss side had to go to the Singapore company every two years to check whether the equipment was used in Singapore for the processing and production of ordinary mechanical parts in accordance with the requirements of the agreement.

Therefore, every time the Swiss side wants to come to inspect it, the equipment will be dismantled immediately, and then quickly loaded onto the ship and shipped to Singapore, where the company will reassemble it, and after coping with the inspection of the Swiss side, it will be dismantled again, transported back to factory E for reassembly, and then used for the production of aero engine parts.

Every time it is disassembled, the accuracy of this equipment will be affected somewhat, but this is also a helpless move, although China is a big country, but the domestic machine tool industry is not top, in the international can only be regarded as second-rate, some slightly more advanced processing equipment can only be purchased from abroad, and due to the technical blockade, money may not be able to buy good equipment.

…………

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