The inspector, who looked to be in his early thirties, was supposed to be a skilled worker recruited and had several years of relevant work experience, and recorded the measured values of the inner bore of these bearings, and measured the size of the journal of the turbine shaft, and also recorded the measured values.

Then there is the calculation, and the interference is calculated from these measured values. Li Tianfeng found that the inspector was quite proficient in his business, and quickly settled the results, and then selected the most appropriate set of turbine shafts and the corresponding bearing pairing to make a record.

Therefore, on the pairing record form, the part number of this bearing, the measured value of the bore, and the part number of the turbine shaft and the measured value of the journal were also recorded.

After watching the whole process, Li Tianfeng nodded, thinking in his heart, this inspector's business level is not bad, and at the same time, Li Tianfeng is more satisfied with Hu Xiao, the head of the Human Resources Department, Hu Xiao is responsible for and leads the recruitment of personnel, and the level is good.

After taking a look in the inspection area, Li Tianfeng saw that many parts of the "TFWZ001" turboshaft engine were being inspected and prepared before assembly.

In addition, in the parts assembly area, Li Tianfeng saw that some parts had begun to be assembled, and Li Tianfeng saw a middle-aged worker with a young worker who was assembling the turbine rotor, and couldn't help but walk over.

Seeing Li Tianfeng, the middle-aged worker took the initiative to greet Li Tianfeng: "Mr. Li, hello." ”

Li Tianfeng nodded with a gentle smile and asked with concern, "Master, your surname?" ”

The middle-aged worker said: "Mr. Li, your surname is Liu, this is my apprentice Xiao Chen." ”

Tianfeng technology has gradually formed a tradition of passing on the belt, the new young employees will generally sign a master-apprentice contract with an old employee who has entered the factory for more than one year, forming a situation of bringing the old with the new.

Xiao Chen, the apprentice brought by Master Liu, is a new employee in the factory, and he has not joined Tianfeng Technology Company for two or three months. However, before joining Tianfeng Technology Company, Xiao Chen was an assembler in a large domestic aviation industry enterprise, and he has three years of experience in aircraft assembly, so he is not a novice.

The two are more skillful in cooperation. For some details to be paid attention to, Master Liu will unreservedly correct or remind them one by one.

Li Tianfeng asked with concern: "Master Liu, are there any problems in the assembly process?" ”

Master Liu is assembling the turbine rotor of the "TFWZ001" type turboshaft engine, to be more specific. The assembly of the turbine disc and turbine blades is now underway, which is fitted into the groove of the turbine disc and then locked with cleats.

Master Liu said: "Mr. Li, the assembly is quite smooth, but the number of blades is not much, and there is not much room for choice, but it is still barely able to meet the assembly requirements." ”

Before the turbine blades are loaded with the turbine disk, the blades are weighed, and the weight of each blade is weighed out one by one using high-precision electronic scales. And recorded, when assembling, assemble according to the weight of the blades.

The tenon groove of the turbine disc is numbered, and the side of the No. 1 tenon groove is marked with a small "1" word with electrolytic printing, and then according to the clockwise direction, they are 2, 3, 4, 5 tenon grooves, etc., but these tenon grooves are no longer marked with numbers, and the number of tenon grooves from the "1" tenon groove is confirmed by clock.

Li Tianfeng nodded, this is the truth, the number of turbine blades is really not much. Some of them are used for various types of tests, and the number of turbine blades in the warehouse is enough for two or three engines.

Li Tianfeng said: "The number of blades is not very long, and after our first verification machine, we will increase the amount of production input." When the time comes, there will be plenty of choice. ”

Master Liu said: "Mr. Li, our turbine disc is really beautiful, it adopts a new design structure, such a turbine disk, I have been engaged in assembly work for 20 years." Almost never seen it. ”

Li Tianfeng said: "This is a new design, the first in China, such a turbine disc structure design, not only lighter weight, but also greater strength. ”

Originally, Li Tianfeng was still a little worried that chatting with him would not affect the quality of the assembly, but seeing that Master Liu was so skillful, Li Tianfeng knew that his worries were superfluous.

Master Liu numbered the blades according to their weight, and put them into the turbine disc tenon one by one, and the blades were loaded into the tenon groove of nature, and the lock plate was used to lock the blades.

Holding a small hammer in one hand and a small copper rod in the other, gently knocking, bending a piece of lock plate, locking the blade, a turbine disk, 31 lock plates, the two of them talked, Master Liu skillfully completed.

Seeing such a skilled technique, Li Tianfeng couldn't help but nod secretly, and then saw Master Liu start to use a special measuring tool to start measuring the swing of the blades one by one, while Xiao Chen recorded on the side, recording the measured swing of the blades on the table one by one.

In addition, Li Tianfeng was slightly surprised that the swing amount of the blades was all qualified, and all of them were qualified at one time, and Li Tianfeng, who knew the difficulty, was slightly surprised.

Generally speaking, before assembly, the appropriate turbine blade should be selected, and the experienced assembly master can judge by his own feel whether the swing amount of this blade will be qualified after locking the lock cleat, and like Master Liu, it is very rare to be qualified at one time.

Li Tianfeng praised: "Master Liu, the level is good, and he will pass all of them at one time." ”

Master Liu grinned, while Xiao Chen next to him said proudly: "Mr. Li, my master is a senior technician of aero engine assembly, and he has a lot of assembly skills in his hands. ”

Hearing this, Li Tianfeng was happy for a while, he was actually a senior technician, this is a very amazing talent, Hu Xiao is good, such a talent has also been poached.

Li Tianfeng knows that the assembly of aero engines and parts machining are very different, parts machining, can be clear in the process of detailed process steps, reasonable process parameters, workers in accordance with the machining process procedures to operate, as long as the level of workers is not too bad, generally can process qualified parts, if the workers are serious, the level is higher, the processing of high-quality parts can also be.

The aero engine assembly is a little different, the process specification is clear and detailed process steps, reasonable process parameters are only one of them, in addition, the quality of the assembly, a large part of the technical level of the assembly workers have a relationship.

If the technical level is not good, it may take half a day to assemble, and there may be repeated disassembly, and repeated assembly can meet the technical requirements.

For the general assembly workshop, each high-level skilled worker is a huge wealth, the more such wealth, the more abundant, the higher the quality of the assembled aero engine, the smoother the whole assembly process.

Li Tianfeng praised Master Liu, and then watched the assembly of the combustion chamber in the parts assembly area, and watched it for a long time.

The assembly of the combustion chamber is also very technical, the assembly requirements are very high, in the assembly process, the workers have to constantly check the runout of the assembly parts, coaxiality and other technical requirements, once unqualified, there is disassembly and reassembly.

The assembly of aero engines is not just about putting all parts together, but there are many technical requirements, which need to be inspected and measured while assembling.

In addition, the assembly of aero engines, the records are also very detailed, each assembly process has a large number of special record tables, record the batch number and part number of each part of the assembly, and the assembly size of each part must be recorded one by one.

Even, after assembling a part, if there are technical requirements, such as runout requirements, coaxiality requirements, etc., these technical requirements should be accurately recorded one by one.

The assembly of an aero engine, all kinds of records, all kinds of information, all kinds of tables, very much, after the assembly of the aero engine, these things should be sorted out and bound into a book, generally every aero engine has a thick book.

These materials, together with the relevant information of the test, together become the resume of the aero engine, a thick book.

Each aero engine has its own thick resume, which should be specially preserved, and it should be kept for more than 20 years, and in the future, once the aero engine has a quality problem, it can be consulted these resumes.

Li Tianfeng has been looking at the aircraft assembly workshop for a long time, and the current assembly workshop is basically not perfect, and there are only more than 100 employees, which is far from reaching the full state, but it can already be used for the assembly of aero engines.

When he came out of the assembly workshop, Li Tianfeng was full of expectations, full of expectations for his first verification machine, looking forward to the early completion of the assembly, and then a series of test verification.

………

In his office, Li Tianfeng sat down comfortably and took a sip of warm tea. Just now, Li Tianfeng went to the data room of the technology center.

The data room, storing all kinds of design data, technical data, the construction standard is very high, but also strictly confidential, the entrance is a thick electronic door, with the combination of fingerprints and passwords to enter, the data room, Li Tianfeng attaches great importance to it.

The data room is not only very large, occupying the entire three floors of the south building of the technology center, and can store a large amount of design and technical data in the future, but also has very strict confidentiality measures in place.

Corresponding to the reference room is the reading room, where technicians can consult materials if necessary, although the confidentiality here is not so strict, but there are a lot of cameras, with their own staff cards to enter and exit.

Li Tianfeng personally went to the reference room, inspected it in person just now, and put forward some suggestions for rectification and improvement, but Li Tianfeng did not dare to relax in the slightest about the confidentiality work.

returned to his office, took a sip of tea, and was about to turn on the computer when Liu Wei knocked on the door and came in.

…………

Today's two watches, the first one is sent. (To be continued.) )xh118R1052