Several process technicians in the foundry workshop were also at the casing casting site, watching the three casings finish pouring one by one, and these people were talking to each other.

"Liu Gong, do you think this titanium alloy precision casting can be successful?"

"Well, it's hard to say, but I'm not the chief craftsman of this titanium alloy casing casting process, maybe I can succeed!"

"If this casting is successful, it will be remarkable, this is the casting of complex thin-walled titanium alloy casing, which is very difficult, and it should be regarded as the top in the whole country."

"Well, not only is the casting structure more complicated, but also the casting precision is very high, and the highest precision can reach about 20 filaments."

Twenty silks!

Many craftsmen gasped, a face shocked, the previous precision casting, casting accuracy is generally in 30 silk, did not think about it, the accuracy has improved a lot.

Suddenly, many people are looking forward to it, and even some of the technical workers on the site are also looking forward to it for a while, if the casting is successful, it represents a new level of precision casting technology.

Next to Li Tianfeng, Zeng Qinghai also had a straight face, in fact, Zeng Qinghai was really a little worried in his heart, worried about the failure of casting.

Seeing that Shun Lì had completed the pouring, there was nothing abnormal, and Zeng Qinghai was a little relieved. Li Tianfeng saw that the entire pouring was completed, and he only waited for the mold to cool and open, so Li Tianfeng waved his hand and said, "Mr. Zeng, we will come back in the afternoon." ”

Zeng Qinghai nodded and said: "Boss, I don't know what the situation is after the mold is opened in the afternoon, I hope the casting will be successful." ”

Li Tianfeng said: "If this kind of difficult titanium alloy complex thin-walled casing is successfully cast, it will be of great significance, and in the future, similar titanium alloy casing will be cast, and we will be able to catch it." ”

The two walked out of the foundry as they spoke.

Outside the foundry. Looking into the distance along the avenue at the entrance of the workshop, you can see the huge construction site in the distance, which is the second phase of the project of Tianfeng Technology Company, a full thousand acres, which is relatively huge.

The construction plan of this thousand acres was originally looking for a very famous planning and design institute in China. Very beautifully planned with science.

Now, many factories here have been under construction, some of the factories built earlier, have basically completed the main construction, the construction of these factories is nearing completion.

Zeng Qinghai said: "Boss, if the second phase of our project is completed, our Tianfeng Technology Company will be completely renewed." ”

Li Tianfeng said: "After the completion of the second phase of the project, our Tianfeng Technology Company will not only almost double its scale, but also increase its production capacity exponentially. ”

Zeng Qinghai said: "Boss." As the turboshaft E engine began to enter mass production, our monthly output of engines has exceeded 100 units, and the production pressure of each workshop in the first line is still relatively large. ”

Amazon's order for 800 turboshaft E engines will be delivered within 12 months, with 50 units per month for the first six months and the remaining 500 units for the next six months.

The number of turboshaft E delivered in the first 6 months is relatively small, otherwise, the production pressure of the first-line workshops will be even greater. Even so, though. Overtime has already begun to occur in some production halls.

Li Tianfeng said: "When the construction of our second phase of the project is completed, these plants will be put into use, our production pressure will be greatly eased, in addition, we will also set up a special international industry and trade branch, which is responsible for the processing of outsourced parts." Such as Harry Burton, Pratt & Whitney and other companies, E factory, Jiufang Equipment Company and other companies parts.

The international industry and trade company will specialize in the processing of parts for the rest of the companies, and each workshop will specialize in the production of turboshaft D and turboshaft E engine parts. and subsequent turbofan engine parts.

The processing of the second batch of turbofan blades has been completed, combined with the defects and deficiencies of the first batch of blades, the process parameters have been optimized and improved, according to the new process, the processing of the second batch of blades is also smooth, and the progress is relatively fast.

Two or three of the leaves of the second batch have been inspected in the metallographic analysis room, and under the electron microscope, they are magnified thousands of times, and the metal structure and metal grains can be seen clearly.

It is Xiao Liu who is in charge of the inspection, and Xiao Liu was also in charge of the inspection last time, and this time he is also familiar with the road, and he seems to be more skilled.

The metallographic organization is normal!

After looking at it, Xiao Liu was pleasantly surprised, the metallographic structure of the blade seemed to be even better than last time, very good.

Director Yang of the metallographic room next to him accidentally saw the happy expression on Xiao Liu's face, and couldn't help asking, "Xiao Liu, how is the situation?" ”

Xiao Liu said: "Director Yang, the metallographic structure of these fan blades is very good, and the performance of the blades, especially the metal mechanical properties, must be very good. ”

Director Yang is also happy, which shows that the titanium alloy material of this batch of blades is one point higher than that of the previous batch of fan blades, and he can't help but say: "Xiao Liu, hurry up and check the welding joint surface of the two halves of the blades." ”

"Well, I'll check right away."

Xiao Liu agreed, and happily began to inspect, under the microscope, the welding joint surface of the two halves of the blade can also be seen clearly, including the metallographic structure of this part.

The two halves of the blades are welded to the joint surface, the situation is very good, the two halves of the blades are very beautifully combined, there are no defects, and there are no microcracks, which is perfect!

Xiao Liu was amazed for a while, far from thinking, the welding of the two blades is so good, it has become a whole, and it has become a very good quality fan blade.

Great!

Tsk, it's so beautiful, Xiao Liu seems to be a little immersed in it, and he never gets tired of looking at it, until Director Yang next to him asked, Xiao Liu came back to his senses.

"Xiao Liu, how is the situation!"

"Director Yang, very perfect, very beautiful! The two halves of the blades are simply one piece, without any defects, Director, you can also come and take a look. ”

Hearing this, Director Yang was also interested, walked over, came to the front of the microscope, and looked at it seriously.

"Great! This shows that our superplastic molding and joining process is very successful, and the process parameters are also very scientific and reasonable. ”

Director Yang and Xiao Liu were happy for a while, Li Tianfeng came in with Zeng Qinghai, seeing the appearance of the two, Li Tianfeng was also inexplicably light, and a high heart slowly put down, this time I came to the metallographic analysis room, Li Tianfeng came to take a look at the metallographic analysis of the second batch of fan blades.

"Mr. Li, the result is very perfect, come and take a look."

Hearing this, Li Tianfeng was also interested, walked over quickly, and looked at it in person, and after looking at it, Li Tianfeng said: "Mr. Zeng, you also come over to take a look." ”

Zeng Qinghai also came over, looked at it happily, and after looking at it, Zeng Qinghai said happily: "Boss, we have succeeded, the two halves of the blades are perfectly combined, and there are no defects in the welding joint surface, I am so happy!" ”

Li Tianfeng also nodded happily: "Mr. Zeng, the success of the superplastic molding and joining process has made us a solid big step, and we are one step closer to the successful development of this turbofan engine." ”

Fan blades, especially this wide-chord hollow titanium alloy fan blades, are very important, are the key and important parts of the fan part, and now, the blades are successfully trial-produced, how can we be unhappy.

Li Tianfeng felt bursts of joy in his heart, and bursts of joy in his heart.

…………

In the afternoon.

The titanium alloy casing that was poured in the morning has been naturally cooled and reached the temperature of the mold, and several workers are opening the mold in accordance with the process requirements and taking out the cooled titanium alloy casing, and at the scene, there are several process technicians present, including the technical director of the casting workshop.

The workers carefully cleaned the inner and outer surfaces of the casing, cleaned the casing one by one with a soft brush, and then blew it with an air gun, and the surface of the three casings was clean.

The weight of the three casings is not heavy, because this is a titanium alloy thin-walled casing, and the casings are placed on the inspection platform one by one, ready for inspection.

The first is a visual inspection.

An experienced inspector began to carefully look at the appearance of the receiver, and several process technicians next to him also looked around one of the receivers.

"Wow, that's beautifully cast!"

"Well, very beautiful, very exquisite!"

"It seems to be a little more beautiful and delicate than the various titanium alloy casings we cast before!"

"Yes, yes, you see, how fine the surface of this receiver is, there is no rough feeling at all."

Several process technicians, looking at this casing, are happy, everyone is a technician, and there is also the chief technician of the casting process of this casing, seeing the casting of the casing so beautiful, so exquisite, it is strange to be unhappy.

Before casting, everyone was very worried about the failure of casting, but I didn't expect that after the casing was cast, it could achieve such a process. Although it is not known what the size is and whether there are any internal casting defects, it is not yet known, but at least it looks good, delicate and beautiful.

That's enough to make people happy!

The inspector next to him was also carefully looking at a receiver, and when he saw that it was so beautiful and the casting appearance was so good, he also nodded secretly.

"Well, yes, very good!"

Hu Dongxu, the technical director of the foundry workshop next to him, also nodded, and he was very happy in his heart, this exquisite appearance is good.

…………

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

Explanation,Yesterday, because the system prompted the appearance of "illegal keywords" in Chapter 286, after getting it right, the chapter was lifted once, but more than 30 subscriptions have been generated, sorry, causing more than 30 book friends to have repeated subscriptions to the chapter. (To be continued......)