In the office, Li Tianfeng was answering a phone call, it was Yang Xianfeng from E factory, seeing that the two were talking and laughing, the two should have been talking for a few minutes.

Yang Xianfeng said: "Mr. Li, your second verification test was a complete success, I am really a little envious." ”

Li Tianfeng said: "Mr. Yang, your vortex C is also good, it has been produced to the 21st machine, I heard that you plan to produce 20 units this year, and fully enter small batch production." ”

Yang Xianfeng said: "Our turboshaft C and your engine can not be compared, and some other systemic problems have not been completely solved. ”

Then, Yang Xianfeng and Li Tianfeng chatted a little about the situation of the turboshaft C, and also talked about some technical problems, and at the same time, Li Tianfeng learned from Yang Xianfeng that the first overhaul life of the turboshaft C engine was extended from 300 hours to 500 hours.

Li Tianfeng said: "Mr. Yang, the life of the first overhaul reached 500 hours, although it is a little short, but compared with the previous 300 hours, this is also a big improvement. ”

Yang Xianfeng smiled bitterly: "500 hours is still jointly decided by the factory, I am brave enough to sign on behalf of Factory E, and now there is a lot of pressure." ”

Li Tianfeng said: "How about the 500-hour test test of the turboshaft C engine? ”

Yang Xianfeng said: "At that time, the long-term assessment test was also barely passed, and after 500 hours of test run, the engine inspection found that there were some problems with the turbine blades. ”

Li Tianfeng said: "It can only be 500 hours when the overhaul period arrives, and all the turbine blades will be replaced." ”

Yang Xianfeng said: "It can only be like this, but in this way, the production and manufacturing of our turbine blades cannot keep up." ”

Li Tianfeng thought for a while, and said, "Mr. Yang, otherwise, it's not like this." Leave the production and manufacturing of turboshaft C engine turbine blades to Tianfeng Technology, and I guarantee that the service life of the blades is more than 1000 hours. ”

Now, Li Tianfeng has this confidence, and the material engineering center of Tianfeng Technology has been established, which not only has research institutions, but also has a huge plant. A lot of advanced metallurgical equipment and a lot of advanced material analysis and testing equipment have been purchased.

The Materials Engineering Center has a research institute, a metallurgical center, and a real room. At present, the institute has more than 100 people, working in the technology center building, mainly engaged in the scientific research of materials, and also providing technical guidance to the metallurgical center.

The metallurgical center has a large workshop with an area of nearly 10,000 square meters, and the metallurgical equipment in the plant is relatively complete and advanced, and the metallurgical center currently has more than a dozen technicians. There are nearly 100 workers.

The construction of the laboratory is also basically completed, and Li Tianfeng's goal is to build this into a national key laboratory, focusing on the direction of materials, but this goal is relatively large, and there is still a long distance.

Subsequently, the Institute of Materials, the Metallurgical Center, and the Practical Room will continue to improve. But now the basic functions have been obtained, and the research and improvement of a certain type of superalloy material has begun.

This superalloy material. It is the superalloy material used in the turbine blades of the turboshaft C engine and the turbine blade of the "TFWZ001" type turboshaft engine at all levels, which is a single crystal superalloy material, which belongs to the more cutting-edge technology.

The research of single crystal superalloy materials in China has begun, which is not unfamiliar, and foreign countries have begun to enter the third generation of research.

The aero engine turbine blades made of single crystal superalloy materials are called single crystal blades, and the English name of single crystal blades: single crystal blades has undergone three generations of development. The first generation is: nickel-base superalloys The second generation is: polycrystalline with directional grain boundaries.

Domestically. A series of technical problems of single-crystal superalloy materials have not been completely solved, and the performance of domestic single-crystal superalloy materials is unstable, or there is a certain gap between the world and www.biquge.info the world. The first project of his materials engineering center is the research of single-crystal superalloy materials.

Of course, this relatively low www.biquge.info of Biqu Pavilion is just Li Tianfeng's heart, in the eyes of ordinary people, single crystal blades, single crystal superalloy materials, that is a tall thing.

The so-called single crystal blade is a cast blade with only one grain. Directional crystalline blades eliminate lateral grain boundaries that are sensitive to voids and cracks, and make all grain boundaries parallel to the stress axis, thus improving the performance of the alloy.

Based on its own materials engineering center has begun to take shape, and is carrying out research on single-crystal superalloy materials, and under Li Tianfeng's "technical guidance", the progress is relatively fast, and has achieved phased success, so Li Tianfeng has this confidence.

Yang Xianfeng said: "Mr. Li, can the service life really reach more than 1,000 hours?" Don't lie to me and make me happy. ”

Li Tianfeng said: "Mr. Yang, don't you know my personality, Tianfeng Technology has this technical strength, and its service life must be more than 1,000 hours." ”

Hearing this, Yang Xianfeng was overjoyed and said happily: "Tianfeng, great, I personally have no opinion, I will communicate with Mr. Zhu about this matter, it should not be a big problem." ”

Li Tianfeng is also happy in his heart, at present, Tianfeng Technology Company's blade manufacturing workshop mechanism has been very sound, equipment has been in place, more than 300 employees, but because his own engine has not entered mass production, the blade manufacturing workshop production task is not full.

In addition, the attitude of Pratt & Whitney is not clear, he has made a batch of blades according to the new process, and has sent Pratt & Whitney, but the other party has not heard back.

The production task of the blade manufacturing workshop is not full, Li Tianfeng naturally wants to try his best to pull the business, this is not, this is an opportunity, if the turbine blade of the turbine shaft C of the E factory is processed by itself, it is also a good business.

The two talked on the phone for a long time, and after more than ten minutes, the two ended the call, and basically negotiated the processing of the turbine blades of the turboshaft C engine.

………

Final assembly workshop.

After the completion of the second verification test, the engine was immediately disassembled, and the parts were cleaned, and now, it has entered the stage of strict inspection.

Qiu Wenan personally was at the site of the assembly workshop, holding the flame cylinder and looking carefully, this is the flame cylinder after the improved design, after the verification test, Qiu Wenan looked very carefully.

Wearing white gloves and holding a small flashlight, he took a photo from time to time, took a closer look, and while watching, Qiu Wenan nodded from time to time, admiring Li Tianfeng very much in his heart.

At the beginning, after the first test run, there was a little problem with the flame tube, the local temperature was too high, and the local cooling was poor.

This shows that the design improvement of the flame cylinder is very successful, and such a design improvement was originally set by Li Tianfeng, no wonder Qiu Wenan admires it more.

After looking at the flame barrel for a long time and finding no problems, Qiu Wen was very happy, and then looked at several parts.

Qiu Wenan is very purposeful, these parts are all parts that have more or less problems after the first verification test last time, and these parts have all been slightly improved in design.

After staying in the assembly workshop for a day, Qiu Wen'an only came to take a look at it the next day, and after looking around, he happily went back and reported to Li Tianfeng.

Qiu Wen'an said: "Boss, after the second verification test, the inspection of each part was basically completed, and basically no problems were found. ”

Li Tianfeng said: "A qiē shun lì, indicating that our engine in the design, manufacturing process, selection of materials and other aspects of the temporary no problem, after the parts inspection is completed, assemble again, 30 hours of assessment and test." ”

Qiu Wenan said: "Yes, you can enter the 30-hour assessment and test, boss, I am personally responsible for this matter." ”

Li Tianfeng nodded a little and explained some things about Qiu Wenan, some related matters about the 30-hour assessment and test.

……

Pratt & Whitney.

In the conference room, several high-level executives, several relevant middle-level people are having a meeting, and in the middle of the conference table, there is a blade, if Li Tianfeng is here, he will definitely be able to see at a glance that this is the blade he processed for Pratt & Whitney.

Last time, Tianfeng Technology and Pratt & Whitney signed a processing agreement, Tianfeng Technology processed a blade with a certain number for Pratt & Whitney, using the latest high-speed and high-precision grinding technology, the first batch of hundreds of blades have been processed, and sent to Pratt & Whitney.

The blade on the table is one of the hundreds of blades, and the blade is very beautifully processed, especially the surface finish of the blade is very good, almost as smooth as a mirror.

Pratt & Whitney is obviously discussing this blade, and looking at this posture, it seems that it is very serious, and Martinez, the general manager of the commercial department, Giovanni, one of the shareholders and senior executives, and even Smith, a senior engineer, are all sitting there.

"Gentlemen, what do you think of this leaf?"

A bearded senior said: "God, this is the first time I have seen such beautifully machined blades, if all our engines are equipped with such high-quality blades, our engines will be of a higher quality level." ”

A big fat man of more than 200 pounds, obviously one of the high-level people, said: "I didn't think that Tianfeng Technology actually has such a technology, but unfortunately, this new technology Tianfeng Technology Company is unwilling to transfer it to us." ”

"Tianfeng Technology has made it clear that it is almost impossible for us to introduce this technology, but Tianfeng Technology has expressed its willingness to use this new process to process a large number of various engine blades for us," Martinez said. ”

………

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