Chen Guihong never dreamed that there was such a scene in the factory.

The whole plant is clean and clean, which is a high-standard dust-free workshop. He saw a lot of people in white coats, these were either technicians from Jiuzhou Industrial Co., Ltd., or production workers.

I also saw the production equipment one by one, and even saw a large production line, which is the IGBT production line, which has been installed and is in the final commissioning.

Two or three months ago, Chen Guihong heard Tang Fei say that he wanted to enter the field of IGBT R&D and manufacturing, and Chen Guihong thought that Tang Fei would take the initiative to give up after encountering difficulties.

Because IGBT is not so easy to get, especially when he later took the initiative to learn about IGBT R&D and manufacturing, he knew that it was very difficult to produce IGBT in China.

Tang Fei "disappeared" for so two or three months, and actually made such a big movement quietly, looking at the scene in front of him, the equipment for manufacturing IGBT should be complete.

Suddenly, Chen Guihong could no longer control his mood, and said loudly: "Brother, it's unbelievable, if you don't see it with your own eyes, I can't believe it!"

"You have lived almost in seclusion for the past two or three months, and you rarely even come to the Red Star Factory, so you are making a big move here!"

Seeing Chen Guihong's appearance, Tang Fei smiled, "Brother Chen, I have been busy with IGBT R&D and manufacturing in the past few months, and the hard work has paid off, the first 6500V IGBT has been successfully developed, and after all these equipment are completed, we will start manufacturing." ”

The 6500V IGBT is the most widely used model in the rail transit industry, and the DJ4 electric locomotive is also widely used.

Chen Guihong seemed to think of something, and couldn't control the excitement in his heart and said: "It will be manufactured soon, or 6500V IGBT, when will it be manufactured, will it be done within half a year?"

That's what he cares about the most.

If Jiuzhou Industrial Co., Ltd. can produce the first IGBT within half a year, it can be used in the DJ4 electric locomotive, doesn't it mean that it does not need to import this type of IGBT from abroad.

Also, what is the quality and performance of the IGBT they will produce in the future, and how many generations of IGBT do they belong to, is it the second generation or the third generation?

Chen Guihong's mind thought a lot at once, looking at Tang Fei with hope, at this moment, Chen Guihong's heart was full of joy and worry.

I am glad that Jiuzhou Industrial Co., Ltd. can actually produce IGBT, but I am worried about when they will be able to produce it, what is the performance and quality, and whether it can meet the needs of DJ4 electric locomotives.

Feeling Chen Guihong's eager gaze, Tang Fei smiled proudly and said confidently: "Brother Chen, we are sure that the first IGBT will be produced within two months, and it is still the fifth generation IGBT, which is much ahead of the mainstream third-generation IGBT on the market." ”

No way!

Chen Guihong looked at Tang Fei in a daze, thinking that he had heard it wrong, it only took two months, and it was still the fifth generation of IGBT.

Hongxing Factory wants to import IGBT, and Chen Guihong, the person in charge of procurement, has also made a lot of efforts to understand and learn some knowledge about IGBT, and knows what the concept of the fifth generation IGBT is.

"Brother, it's true!"

Tang Fei said: "It is true, the first model of IGBT we have successfully developed and designed, is currently applying for a patent, in addition, we will also develop and design other types of IGBT, intending to use about two years to serialize IGBT, covering the range from 600V to 6500V, not only to meet the needs of the rail transit industry, smart grid, aerospace field, and even other electrical and electronic fields." ”

"Oh also!"

Chen Guihong finally shouted excitedly, clenched his right hand into a fist, and waved it vigorously in the air. I thought to myself, this brother of his is really amazing, he has helped him a lot, no wonder when he was in his office, he asked if he could help.

"Brother, you are really my savior, I can count on you for the IGBT that the DJ4 electric locomotive needs. ”

Tang Fei agreed, full of confidence, "No problem, give it all to me." ”

The Red Star Factory needs these IGBTs after May Day next year, and there is plenty of time. At present, the equipment has been in place, the installation has been basically completed, and it has begun to enter the commissioning stage, if these IGBTs cannot be produced in a few months, Tang Fei himself does not believe it.

Seeing Tang Fei's promise, Chen Guihong completely put his mind at ease, according to his understanding of Tang Fei, since Tang Fei had agreed, he would definitely be able to do it.

Chen Guihong's brows were completely relaxed, his face was sunny, his mood was incomparable, and he took the initiative with great interest.

"Brother, seeing that you are extraordinary here, take me on a tour and let me open my eyes. ”

Of course, there is no problem with this.

Tang Fei acted as a guide and took Chen Guihong to visit his IGBT manufacturing workshop, in this huge production workshop, all the equipment was in place, and the production line also entered the commissioning stage.

Seeing this advanced equipment, Chen Guihong really opened his eyes.

After the visit, his interest came, and he insisted on inviting guests to dinner, but Tang Fei followed Chen Guihong to Furong Building.

ordered a few good dishes and asked for a bottle of good wine, and the two brothers happily ate and chatted.

………

Before the first IGBT was manufactured, the first DJ4 traction motor system of Jiuzhou Industrial Co., Ltd. was successfully manufactured, and after inspection and testing, the performance was excellent, exceeding the original design expectations.

Luo Dong also came in person, personally read the inspection report and performance test report, looking at these perfect data, Luo Dong was extremely satisfied.

The things have been done, and the quality and performance are first-class, Tang Fei instructed, transported to the assembly workshop of the Red Star Factory, and handed over his first set of traction motor system to the Red Star Factory.

Therefore, this set of motor traction system was loaded and transported to the assembly workshop of the Red Star Factory, and placed next to the assembly station of the DJ4 locomotive.

It just so happened that there was also a traction motor system shipped from Germany, apparently intended for the second DJ4 electric locomotive.

The final assembly of the first DJ4 electric locomotive is halfway through and is expected to be completely completed in March and April next year. The second DJ4 electric locomotive has also been in operation for a month and will be assembled for the traction motor system.

On one side is the traction motor system developed and manufactured by Ximen Company, and on the other side is the traction motor system of Jiuzhou Industrial Co., Ltd., which is more interesting.

Since the traction motor system of Jiuzhou Industrial Co., Ltd. was sent here, the workers in the assembly workshop have been discussing.

"Lao Li, you have a lot of experience, in your eyes, is Siemens' traction motor system better, or Jiuzhou Industrial Co., Ltd. is better?"

Lao Li is an old worker, I heard that he has participated in the development and assembly of a number of Shaoshan series locomotives, and his words have a certain reference in the eyes of the workers.

Lao Li stopped the work in his hand, looked at the two sets of traction motor systems placed not far away, and said slowly: "This is difficult to say, judging from the Shaoshan series of traction motors manufactured and provided to us by Jiuzhou Industrial Co., Ltd. before, their DJ4 traction motor system should not be bad." ”

"However, Siemens is a large company, and their traction motor system is a veritable original import, and I think Siemens should be better." ”

Many workers, taking advantage of their free time, have specially run to these two sets of traction motor systems to take a closer look, and a burst of criticism.

In the office.

Chang Jinlin and Xie Zhenhua were chatting about work, and a large part of the content they talked about was about the DJ4 electric locomotive.

Xie Zhenhua also told Chang Jinlin an exciting news, "Mr. Chang, the first set of traction motors developed and manufactured by Jiuzhou Industrial Co., Ltd. has arrived in our assembly workshop. ”

Chang Jinlin said with satisfaction: "Their speed is really fast enough, but I don't know how the performance and quality are." ”

Xie Zhenhua said: "I have confidence in Tang Fei and their hunch, and I have a hunch that their traction motor system is better than Siemens' traction motor system in terms of overall performance and quality. ”

If Xie Zhenhua can say such a thing, it will take full courage to do it, and ordinary people really don't dare to say this. Because in this era, looking at the whole world, Siemens is the leader in the electric locomotive industry.

Their electric locomotives have excellent performance and reliable quality, otherwise, Hongxing Factory would not have chosen to cooperate with them in the first place.

In the face of such a company, Xie Zhenhua still dares to say this, which shows his courage and shows that Xie Zhenhua is completely optimistic about Tang Fei's traction motor system.

Chang Jinlin said: "You Lao Xie said so, then Tang Fei their traction motor system will not be bad, the last time I went to the capital for a meeting, the leaders above specially instructed that the DJ4 electric locomotive should begin to implement localization, I think we trial production of the second DJ4 electric locomotive traction traction motor system can be installed in Xiao Tang their production." ”

Xie Zhenhua said: "I also agree with this, just to compare." ”

The first and second cars of the trial production were equipped with traction motor systems of Siemens and Jiuzhou Industrial Company respectively, and it is indeed possible to compare them to see who has better quality and better performance.

The two chatted for a while about the traction motor system of the DJ4 electric locomotive, and then talked about the import of the next batch of IBGTs.

The addition of two new cars requires a batch of multiple models of IGBT, which Chang Jinlin has handed over to the procurement center, to be precise, to Chen Guihong to handle.

Chang Jinlin instructed: "Lao Xie, you should pay more attention to the import of IGBT, and call Chen Guihong over when necessary to find out how the import procurement of our batch of IGBT is progressing." ”

Xie Zhenhua said: "Okay, I'll go to the procurement center to find out about Chen Guihong later." ”

After talking about things at work, Xie Zhenhua also got up to say goodbye, I don't know if I went to call Chen Guihong to come over, Chang Jinlin was the only one in the office.

Chang Jinlin picked up the pen and prepared to review a few documents, but it didn't take long for the red phone on the desk to ring rapidly.

picked up the phone, and as soon as he heard two sentences, Chang Jinlin's face gradually changed......

………

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