"Hey......"

Yang Jun actually sighed again, his whole face suddenly became sad, and he said in a low voice: "Something really happened, and the matter is not small." ”

Hearing this, Tang Fei suddenly paid attention to it, and immediately asked, "What happened, can you tell me?"

……..

Red Star Factory, in the conference room.

This small conference room was filled with smoke, and several cigarette butts had been extinguished in someone's ashtray, and the atmosphere in the whole conference room was very depressing and solemn.

Presiding over the meeting was Xie Zhenhua, chief engineer and deputy general manager of Hongxing Factory, and Chen Guihong was also sitting and attending the meeting. In addition, there are some comrades in charge of technology and quality, and there are also some people in the assembly workshop, such as Lu Gang, who is sitting next to Chen Guihong.

It all started last month.

Since last month, the after-sales personnel in various road bureaus have sent back messages one after another, and there have been problems with the ventilation and cooling system on the Shaoshan series of electric locomotives.

At the beginning, the technical and quality personnel of the Red Star Factory did not pay much attention to it, thinking that it was an accidental factor, and it was not until the beginning of this month that the same problems increased one after another, and everyone paid attention to it.

The situation is also reflected in Xie Zhenhua, who is worthy of being a technical expert in the Red Star Factory, and he found some clues from these problems.

After summarizing and analyzing these problems, Xie Zhenhua came to an astonishing conclusion, and immediately couldn't sit still, and immediately called the relevant personnel to hold the first meeting a few days ago.

Others thought that it might be only an occasional problem, but Xie Zhenhua saw the essence of the problem, and at the meeting a few days ago, he said his inference in front of everyone that there should be a quality problem with a major motor in the ventilation and cooling system.

Electric locomotives need to consume a lot of electrical energy during operation, and as this electrical energy is consumed, it will emit a lot of heat.

If the heat is not discharged in time, the temperature inside the entire electric locomotive will rise rapidly, which will inevitably affect the electrical components on the electric locomotive, as well as the work of many systems.

To dissipate these heat, it is necessary to use ventilation cooling, Shaoshan series electric locomotive has a complete set of ventilation cooling system, the power source of this system is various types of motors, through the motor to drive the impeller to work, so as to ventilate, take away a lot of heat, so that the temperature inside the locomotive is maintained within a permissible range.

If this ventilation and cooling system fails, the temperature inside the locomotive will be out of control, which will affect the operation of the locomotive, and even force it to stop.

Now, it is the ventilation cooling system that has a problem, and Xie Zhenhua has accurately deduced that it should be the quality problem of the main cooling motor.

At the meeting a few days ago, Xie Zhenhua gave his own inference, according to this inference, the engineering and technical personnel of the Red Star Factory, as well as a large number of technicians, used the past few days to verify Xie Zhenhua's inference.

No, everybody is in a meeting together.

This is not a general quality problem, the situation is estimated to be more serious, before coming to the meeting, Chen Guihong realized this, and inevitably revealed some to Yang Jun, so when Yang Jun saw Tang Fei, he had that expression.

in the conference room.

A supervisor quality officer was introducing the situation, and said loudly: "According to the requirements of Chief Engineer Xie, we have summarized the problems of the ventilation and cooling system in the past two months, and there have been a total of eight problems, except for one caused by accidental factors, a total of seven are related to the main cooling motor. ”

It's really the main cooling motor!

Chief Engineer Xie's inference is completely correct!

Many people sitting there glanced at Xie Zhenhua with admiration, and then there was a buzzing discussion, everyone is not a layman, if it is really the main cooling motor that has frequent problems, then the problem may be more serious.

In the entire conference room, it was no longer quiet, many people turned their heads sideways and whispered conversations, and many people either frowned, or their faces showed a little worry.

Xie Zhenhua coughed, raised his hand and pressed down, signaling everyone to be quiet, and then said to the quality supervisor: "Go on, and tell all the conclusions you have reached." ”

"Hmm. The quality supervisor nodded and continued: "In view of these seven quality problems, combined with the feedback of the after-sales personnel of various road bureaus, we worked with technical personnel to conduct a careful analysis, and there are serious quality problems in the main cooling motor. ”

Yes!

Serious quality problems!

Many people's faces changed slightly, serious quality problems, this is no joke.

The quality supervisor explained the data they analyzed in more detail, and also mentioned a professional term - machine breaking.

That's right, it's broken!

This is a serious quality accident caused by the main cooling motor.

After the quality officer in charge finished speaking, Xie Zhenhua waved his hand and said: "Vice President Chen, you can introduce some of the loading situation of the main refrigeration motor of our Shaoshan series electric locomotive. ”

Chen Guihong stood up and prepared to speak.

Before this meeting, Chen Guihong collected a large amount of information, learned in detail about the loading of the main refrigeration motor of the Shaoshan series of electric locomotives, and summarized the data.

Chen Guihong said: "Chief Engineer Xie, leaders and colleagues, now I will introduce the loading situation of the main refrigerated motor of the Shaoshan series of electric locomotives, our Shaoshan series of electric locomotives have been put into production so far, in addition to the first few batches of imported main refrigerated motors, the latter is completely localized, so far, a total of 3,542 main refrigerated motors have been used. ”

"The more than 3,000 main cooling motors, mainly produced and manufactured by our two domestic motor factories, each motor has a service life of ten years, and the main cooling fans of the seven electric locomotives that have problems are all domestic motors, and the service life ranges from more than three years to five or six years.......

Chen Guihong gave a detailed introduction to the situation.

A total of thousands of main cooling motors are used, and the problems are all domestic motors.

Many people think in their hearts, God forbid, don't continue to have such problems, if problems like this continue to occur, things will only get worse.

Xie Zhenhua also realized this, his face was not relaxed at all, and when Chen Guihong finished speaking, he raised his hand again and signaled everyone to be quiet.

After the conference room was quiet, Xie Zhenhua began to deploy a series of tasks. If personnel are arranged, the main cooling motors that have problems in the road bureau outside will be removed from the locomotive, and they will be returned to the Hongxing factory immediately to do further technical analysis to find out the real cause.

What exactly the problem is must be clarified as soon as possible. To figure this out, a careful analysis of the faulty motor is necessary.

Then, Xie Zhenhua also instructed the after-sales personnel outside to pay close attention and focus on investigation to prevent similar quality problems from occurring again.

After Xie Zhenhua deployed a series of tasks, he waved his hand and signaled everyone to adjourn.

Everyone's faces were not relaxed, and they walked out of the conference room with a little heavy steps. Chen Guihong walked out of the conference room with a solemn face, and inadvertently, Chen Guihong caught a glimpse of Xie Zhenhua not leaving immediately, but sitting there.

Xie Zhenhua took out a cigarette, lit it, and smoked it slowly. To be honest, Xie Zhenhua's addiction to smoking is not heavy, he can't smoke a few cigarettes a day, and he will only sit and smoke when he thinks about something or encounters something more tricky.

This time, Xie Zhenhua sat alone in the conference room and smoked three cigarettes in a row. I don't know why, Xie Zhenhua faintly had a bad premonition.

I hope things aren't too bad, not what I thought. Xie Zhenhua vigorously extinguished his cigarette butt, sighed softly, and walked out of the conference room last.

Tang Fei in the purchasing center.

Under Yang Jun's arrangement, Tang Fei drank tea in a reception room in the procurement center, waiting for Chen Guihong's meeting to end.

The procurement center needs to contact a lot of suppliers, need to purchase a large number of spare parts, in the procurement center there are several good environment of the reception room, Tang Fei is one of them.

After drinking more than half of the cup of hot tea slowly, Tang Fei raised his hand to look at the time, and thought to himself, it has been thirty or forty minutes, Brother Chen should be about to finish the meeting.

After waiting for a few more minutes, Tang Fei heard a familiar footsteps, and hurriedly got up, and it was Chen Guihong who came in from outside.

………….