Li Tianfeng naturally didn't dare to slack off on such an important matter, and immediately talked to Zhang Haiping on the phone and briefly explained the situation.

After listening to Li Tianfeng's words, Zhang Haiping said: "Mr. Li, if the American Etra Company does not renew the contract with Tianfeng Technology Company after six months, how big will the impact be, do you have a count in your heart?" ”

The United States Etra company is the main supplier of electronic components required for a variety of aero engine electronic digital control systems of Tianfeng Technology, and this company is also a well-known company in the industry, providing high-end electronic components to many aviation industry enterprises around the world.

Li Tianfeng said: "Minister Zhang, in this regard, I have roughly assessed that there is still a buffer period for us in six months, and there is still a certain room for recovery in things, and it is unlikely that we will really stop production." ”

Hearing this, Zhang Haiping was relieved, and then said: "Mr. Li, it seems that your previous point of view is correct, fortunately, our turbofan 20 engine insists on taking the road of complete localization, otherwise, it is really possible to be stuck by others one day." ”

Li Tianfeng nodded and said: "Minister Zhang, after this incident, I already have the plan to completely localize the turboshaft D and turboshaft E engines, turbofan 16, turbofan 17 and turbofan 18 engines. ”

Zhang Haiping said: "Mr. Li, this is the best, and I won't worry about being stuck by others in the future." ”

Li Tianfeng said: "Minister Zhang, just like this, I have to trouble you again, there are some electronic components and high-end sensors, there are really no in China, we must design our own manufacturing, design our Tianfeng Technology Company can take it down by itself, production and manufacturing must find a manufacturer with strong strength and foundation." ”

Zhang Haiping almost patted his chest and said, "Mr. Li, there is no problem with this." As long as your design drawings come out, I will definitely find the most suitable and strongest manufacturer in China. ”

The two chatted about this matter for a long time, and finally, Zhang Haiping said: "Mr. Li, don't worry. Our military will also send people to contact the American company Etra to try to renew the contract with Tianfeng Technology Company. ”

This is the best, if the other party can renew the contract again, even if it is a year or half a year, Tianfeng Technology Company will have plenty of time to completely localize several of its engines.

Li Tianfeng said: "Minister Zhang, then I will trouble you, as long as we renew the contract with Etra Company for more than half a year, plus the half year that has not yet expired, we will have enough time." It is completely free to free up our hands and feet, and it is easy to achieve thorough localization of our engines. ”

Zhang Haiping said: "Don't worry, I will immediately arrange for someone to contact the Etra company." ”

Of course, not only did the military arrange for a large company with a military background to take the initiative to contact the Etra company, Li Tianfeng also arranged for Xu Lilong to be personally responsible for this matter, and Xu Lilong led a direct flight to the United States on the same day.

………

Although Tianfeng Technology Company was stuck by others outside, its own development did not encounter any obstacles and stagnation.

Manufacture of various engines. It has been carried out as usual with the development of the turbofan 20 engine. It is also in an orderly manner, many parts have been designed, and even some parts have started the first batch of trial production.

The fan section, the full-authority electronic control part of the engine, these parts have not yet completed the design, but the turbine part of the design was completed at the earliest. Some parts have already begun the first batch of trial production.

This has become the practice of almost every new aero engine development of Tianfeng Technology Company, while carrying out the design, while carrying out the trial production of parts.

The turbofan 20 engine was designed on the basis of the turbofan 16 engine core engine, and many things are off-the-shelf and do not even need to be revalidated. In this way, Li Tianfeng's confidence and certainty are greater, and the parts that are designed are completed first and trial-produced first.

The first precision casting workshop.

The turbine blades of the first batch of turbofan 20 engines have been completed directional solidification casting, which is a very mature casting technology for Tianfeng Technology Company, and most of the third-generation single crystal turbine blades are such casting technology.

The blades are cast, very beautiful, several inspectors are carefully inspecting, next to them, there are several process technicians in the casting workshop, and even, the designers of the engine research and development center have also come to a few people, everyone around this batch of blades, full of interest, full of joy.

Dozens of blades are neatly placed on the inspection platform, and the inspector has completed the visual inspection, and now, the dimensional inspection is underway.

One of the process technicians picked up a blade, looked at it and said, "Let's take a look, the blade is very delicate, and the quality must be first-class." ”

"Well, the blades are really good."

"These turbine blades are made of the same material as the turbine blades of the turbofan 16 engine, the structure and shape are also highly similar, and the casting process is almost the same, otherwise, where would it be so smooth."

"Zhang Gong, not only this stage of turbine blades, but also the other stages of turbine blades are almost the same as the turbine blades of the turbofan 16 engine, and the casting will definitely be very smooth."

It seems that Zhang Gong in everyone's mouth should be a competent craftsman, in his thirties, wearing glasses, and looking very good in terms of technical level and experience.

Zhang Gongdao: "This batch of blades is qualified in size inspection, if the non-destructive inspection is also qualified, it means that more than half of this batch of blades is successful, then it can be delivered to the blade manufacturing workshop for follow-up processes." ”

The so-called non-destructive inspection is a general term for fluorescence inspection, magnetic particle inspection, ultrasonic and other inspections, the purpose of these inspections is to check whether the material of the parts is qualified, whether there are defects, such as whether there are tiny cracks, whether the internal material is uniform, whether there are tiny pores and so on.

For aero engine parts, non-destructive inspection is very important, because aero engine parts, especially force and rotating parts like turbine blades, the parts must not only be qualified in size, but also in the material of the parts, and there must be no defects.

This batch of turbine blades is precision cast in the casting workshop, and after passing the inspection, it is sent to the blade machining center for a series of precision machining, and after the processing is completed, it is necessary to inspect again, spray the thermal barrier coating, and then do a series of verification experiments, such as fatigue experiments.

In the office.

Li Tianfeng is listening to Zeng Qinghai's report, at present, many turbofan 20 engine parts have completed the design, the design drawings sent to the process technology department, the entire process technology department is also very busy, arranging a series of process regulations.

In addition, some process specifications have been compiled, and the trial production and process verification of parts have begun, and even the trial production of some parts is still progressing relatively quickly, such as the turbine blades just now.

Zeng Qinghai said: "Boss, our turbofan 20 engine, the first batch of high-pressure turbine blades have been precision manufactured, the inspection results are excellent, the pass rate of parts casting is relatively high, and it has almost reached the level of mass production." ”

Hearing this, Li Tianfeng was finally happy in his heart.

It is not easy for the trial production of parts for new aero engines to reach the level of mass production.

Li Tianfeng said: "Mr. Zeng, it's not bad." ”

Zeng Qinghai said modestly: "Boss, mainly in the manufacture of our turbofan 16 engine, we have accumulated enough process experience and sufficient process foundation, otherwise, we really can't achieve such a gratifying pass rate." ”

Li Tianfeng said: "Mr. Zeng, I am now looking forward to our turbofan 20 engine more and more, and I hope to develop it as soon as possible." ”

Zeng Qinghai said: "Boss, we must pay close attention to the trial production of parts, and strive to complete the comprehensive trial production and process verification of parts as soon as possible." ”

Li Tianfeng and Zeng Qinghai were in the office, and the two talked for a long time about the comprehensive trial production and process verification of turbofan 20 engine parts.

After sending Zeng Qinghai away, Li Tianfeng thought in his heart that the development of the turbofan 20 engine was smoother than he imagined, but he didn't know if Xu Lilong's trip to the United States would go smoothly.

was thinking about these things in the office, Xu Lilong's phone called, and during the call, Xu Lilong's tone was very solemn, and Li Tianfeng suddenly felt bad.

Xu Lilong said: "Boss, things are not going well, and I finally met one of their vice presidents in charge of sales. ”

Li Tianfeng said: "Mr. Xu, what did the other party say?" ”

Xu Lilong said: "Mr. Li, the other party is simply a scoundrel, and he doesn't talk about business reputation at all, and the other party said that from next month, we will completely stop supplying our electronic components." ”

According to the original contract, Etra Company supplied to Tianfeng Technology Company in 12 months, monthly and batch supply, at the beginning, the contract between the two parties was signed once a year, and the contract expired in 6 months.

Li Tianfeng didn't expect that the two sides had already signed a contract, and the other party would actually break the contract and stop the full supply next month, which was absolutely impossible.

Li Tianfeng said: "Mr. Xu, the wording is harsh, tell them that if they break the contract, they must compensate us with a huge amount of compensation, in addition, I will think of a way." ”

The huge amount of compensation from Shenma is not what Li Tianfeng hopes to get at all, Li Tianfeng's purpose is to ask the other party to supply him on time.

After chatting with Xu Lilong on the phone and deploying the relevant work, Li Tianfeng thought in his heart that it was really uncomfortable to be stuck in the neck by others.

Li Tianfeng thought in his heart, should he make a phone call to Zhang Haiping.

Just as Li Tianfeng was about to pick up the phone, Zhang Haiping's phone called, and when he saw the caller ID, Li Tianfeng thought in his heart, don't be bad news, I received a call from Xu Lilong just now, which is already miserable enough.

…………

Today's three watches, the first one is sent!

I went to the countryside today, and I took a new laptop to code words in the countryside, and it felt very good, but there was no network in the countryside, and I could only send it after I got home at night. (To be continued......)