God-level industrial master

Chapter 468 Ten Core Technologies

Xie Zhenhua was very happy!

They missed the production of the subway. It is basically impossible for the Hongxing Factory to produce subway locomotives, but soon, they will be able to participate in the production of EMUs. This is a turning point.

Jiuzhou Industrial Group has actually completed the design of many important parts, and can start the trial production of some parts, which is his dream.

Throughout the night, Xie Zhenhua almost suffered from insomnia.

Early in the morning of the first day, he arrived at Jiuzhou Industrial Group with great enthusiasm, knocked on the door and walked into Tang Fei's office. At this time, it was not yet 08:30 in the morning, and Tang Fei had just started work.

Yesterday afternoon, Tang Fei had basically prepared everything. Those parts can be trial-produced first. The list has been made, and the relevant process information has been sorted out. Next, the production can be carried out according to these process documents.

"Old Xie, it's so early!"

Xie Zhenhua was in a good mood, he laughed, "Brother, I was so excited that I almost didn't fall asleep last night, no, come here early, and have a look."

Which parts have been produced and designed, and which ones will be handed over to Red Star Factory for trial production, Xie Zhenhua wants to know now.

In addition, although the introduction materials of the JF200A EMU are very detailed, Xie Zhenhua wants to know more about the key and core technologies of the JF200A EMU. He wants to know more in detail.

In the introduction of materials, these things are only mentioned a little bit, and a more specific and in-depth understanding obviously needs to be obtained through design materials or process materials.

Seeing Xie Zhenhua's eagerness, Tang Fei also smiled loudly, "Old Xie, the design of some of the most critical parts of the EMU has been completed, and detailed technical information has been formed. I have sorted out which parts will be trial-produced by you. "

Before the construction of the Hexi factory area is completed, which parts are called to be handed over to the Red Star Factory for trial production, which parts will be manufactured by Jiuzhou Industrial Group, and which parts will be purchased from external suppliers. Tang Fei has already basically thought about it. The team has also fixed these things.

Generally speaking, the EMU mainly includes car body, bogie, traction drive control system, control device, car end connection device and other main parts.

Among them, the key and important parts of the car body, bogie and car-end connection device are handed over to Hongxing Factory for production and manufacturing, and ordinary and general spare parts are purchased from outside or handed over to surrounding suppliers for OEM processing. Carry out production and manufacturing, and finally assemble in the Red Star Factory.

The core of the EMU is the two parts of "traction transmission control system" and "control device", which involve the most key and core technologies. These two parts are temporarily being trial-produced by Jiuzhou Industrial Group.

After the construction of Jiufang EMU Company is completed and it has the production and manufacturing capacity of EMUs, all these things will be handed over to Jiufang EMU Company, and all of them will be manufactured at Jiufang EMU Company.

"The list has been sorted out, and the crafting materials are also ready!"

Xie Zhenhua was surprised, marveling at the high efficiency of Jiuzhou Industrial Group.He also hurriedly said: "Brother, quickly show me what things are produced by us."

Tang Fei smiled, opened the drawer of his desk, and took out a list of parts and a USB flash drive from it, "Xie, this is the list of parts and components that you are responsible for trial production, and the USB flash drive contains detailed process and technical information , you are mainly responsible for the trial production of the car body, bogie and car-end connection device."

"Okay, okay, great!" Xie Zhenhua's face was full of joy after receiving the list and the USB flash drive.

Tang Fei reminded: "We are responsible for the trial production of the traction drive control system and the control device. After the trial production of these important parts is completed, all of them will be assembled in your factory."

This was negotiated at the beginning. Before the construction of the Hexi factory area was completed, the first EMU was assembled at the Hongxing Factory and unloaded.

Xie Zhenhua said: "Okay, no problem."

At this time, Tang Fei felt that it was necessary to remind him about the next trial production of the car body, bogie and car-end connection device.

Especially the car body!
The role of the car body is to install the foundation and load-bearing frame.The EMU generally adopts an integrally loaded steel structure or light metal structure to meet the strength and rigidity requirements under the lightest self-weight.

Tang Fei reminded: "Old Xie, the car body of the JF200A EMU is not simple. It is definitely the best designed and most advanced car body among the EMUs in the world. It uses advanced car body lightweight technology. Reduced the overall weight of the EMU.”

Xie Zhenhua had read the introduction materials of the JF200A EMU before, which mentioned the lightweight technology of the car body, but it was just an introduction, and very specific things were not covered.

Seeing what Tang Fei said, Xie Zhenhua wanted to know more about the advanced lightweight technology of the JF200A EMU.

Tang Fei smiled proudly, and began to introduce the lightweight technology of the JF200A EMU to Xie Zhenhua in more detail.

"Old Xie, in addition to the advanced structural design, the car body of our EMU is also very particular about the use of materials. A large number of lightweight materials such as aluminum alloy and composite non-metallic materials are used. The weight of the car body is lower than that of traditional The passenger car is more than half lighter, and compared with the advanced EMUs in the world, the weight of the car body is also lighter by one-third..."

After listening, Xie Zhenhua was a little moved, and exclaimed in his heart, this technology is really awesome!

Under the premise of fully meeting the strength requirements, such a light car body is a bit against the sky.

One of the most important technologies for high-speed trains is to reduce weight.

When the train is running, it consumes about 12 kilowatts per ton of weight pulled, and when it runs to 300 kilometers, it consumes about 16 to 17 kilowatts per ton of weight pulled.

The lighter the car body, the more energy-efficient it is and the faster it can travel.The EMU manufacturing companies in the world have been competing to reduce the weight of the car body as much as possible. Undoubtedly, the JF200A EMU has come to the forefront in this technology.

Xie Zhenhua gave a thumbs up a little excitedly, "Brother, I didn't expect our JF200A EMU to have such powerful lightweight technology. Don't worry, we will produce excellent car bodies."

Tang Fei was not worried at all whether the Red Star Factory could successfully manufacture the car body, bogies and other things.

Hongxing factory is an old factory with thousands of employees and decades of history. It has accumulated rich production and manufacturing experience.In addition, the process data in the U disk comes from the system, which is very detailed. As long as the production is carried out according to these process data, there is absolutely no problem.

In addition, these components of the EMU produced by the Red Star Factory must also enjoy the BUFF effect of their own quality +2, and they must be able to produce these things smoothly and with high quality.

Now, Xie Zhenhua wants to go back immediately, hold a meeting immediately, arrange the trial production of these parts, and start the production of parts in full swing.

But Tang Fei didn't let Xie Zhenhua go immediately, but said: "Old Xie, don't worry, besides the lightweight design technology of the car body, do you know what core technologies our JF200A EMU has?"

Core key technology!
Xie Zhenhua, who originally wanted to leave, suddenly became interested and said with a smile: "It is mentioned in the introduction materials that the JF200A EMU has a total of ten core technologies, but I am not very clear about the specifics."

Although the introduction materials are very detailed, in order not to involve technical leaks, only a brief introduction of these ten core key technologies is given, and specific and in-depth things are not mentioned.

Now that he is ready to start the trial production of some parts, Tang Fei feels that it is necessary to introduce these ten core key technologies to Xie Zhenhua, so that he can have a more comprehensive understanding of the technical advantages of the JF200A EMU.

Car body lightweight technology is one of them, and there are nine other core key technologies. Tang Fei patiently introduced them to Xie Zhenhua one by one. They are "integrated technology", "traction technology", "AC drive technology", "braking technology", "operation control technology" and so on.

One of the biggest highlights is "running control technology" and "brake technology".

The operation control system is the core to ensure the safety of operation. It is completely different from the driver-based control system of ordinary trains. It is a full-digital control similar to the subway system. auxiliary controller.

The braking technology of the JF200A EMU is not simple.

As we all know, the braking technology of high-speed trains is related to driving safety. The braking technology of the JF200A EMU is very advanced, reducing the speed from 200 kilometers per hour to 90 kilometers per hour. It uses the reverse rotation of the motor completely, and uses the huge inertia of the EMU to generate electric energy for upward transmission. There is no Any mechanical friction is a very green technology.

At that time, the speed dropped below 90 kilometers, and the mechanical brake was only used at this time. The braking distance of the JF200A EMU is less than 1500 meters, which is completely at the top level in the world.

After listening to Tang Fei's general introduction of the ten core key technologies of the JF200A EMU, Xie Zhenhua stood up all of a sudden, as if he had been beaten to death.

Put away the USB flash drive, hold the list of trial-produced parts, and said excitedly: "Brother, it's getting late, I have to go back immediately, hold a meeting immediately, and arrange the trial-production work as quickly as possible."

Tang Fei could fully understand Xie Zhenhua's mood at the moment, so he didn't hold back. He got up and sent him to the door of the office. He watched Xie Zhenhua leave, then turned back to his office, picked up the phone, and said loudly: "Hai Long, notify the relevant personnel , start a meeting immediately!"

Obviously, Tang Fei is ready to start the trial production of the "traction drive control system" and "control device" of the JF200A EMU.

……

Three more updates will continue today, and the first update will be delivered!

(End of this chapter)