In the repair area of the test workshop of China Machinery Company, there is a group of people around an assembled engine at this moment, discussing with each other, including Mu Zhongyue, director of the technical quality department, and the technical person in charge of each workshop, Li Xiang is also among them. Pen "Fun" Pavilion www.biquge.info

Mu Zhongyue looked at the engine and asked Zheng Bingshen, the inspection squad leader beside him: "Squad leader Zheng, you are the first to come into contact with it, can you tell everyone about the situation." ”

Zheng Bingshen coughed lightly and said: "The situation is like this, this engine is the second-generation machine developed by our Daxuan Power not long ago, but the market feedback engine is working when the gear shaft is sintered and white smoke is emitted, and there is a large quality hazard." ”

Zheng Bingshen pointed to the sintered gear shaft and continued: "This one is a faulty machine that has returned from the market, and we found that there were many problems of high oil pressure during the test process, and the oil pressure requirement under rated working conditions was 300 to 550kpa, but in fact it reached 600 to 750kpa. ”

After listening to Zheng Bingshen's narration, everyone understood the problem that happened, and Mu Zhongyue also frowned, obviously thinking about the reason for the problem.

Zheng Bingshen glanced at everyone and continued: "At present, the cause of the problem is unknown, and the parts related to the oil circuit are being gradually investigated, and now the gears, gear shafts, oil pumps and other parts have been checked, and no abnormalities have been found. ”

Mu Zhongyue nodded, and before he could speak, he heard a lazy voice coming from outside: "What?" Haven't found the cause of the problem yet? This is a new product that opens up the market, and if something goes wrong, it will have to be doubled. ”

Hearing this, everyone frowned, but these people have also been in the workplace for many years, and no one has come forward to say anything.

Li Xiang looked up at the source of the voice, and saw that a man about thirty years old walked over with a flat head and a thick lower lip.

Mu Zhongyue's face looked very ugly, and after seeing the person coming, he snorted lightly, but in an instant, he squeezed out a smile, stepped forward and said, "It's the lathe from the quality department who is here, and we are analyzing it." ”

The person who came was Che Wencao, the quality engineer in charge of after-sales quality in the quality department of Daxuan Power, who listened to Mu Zhongyue's words with a unhappy face, and said: "Haven't you analyzed it yet?" ”

In fact, in terms of level, Che Wencao and Li Xiang's level are about the same, worse than Mu Zhongyue, but after all, they are people from the Daxuan Power Quality Department, which is like the officials who were in the DPRK before, even if the grade is low, it is also a stinky temper.

Now Che Wencao's tone is like a superior questioning a subordinate, which makes Mu Zhongyue very unhappy, but Mu Zhongyue is the director of a department after all, and he doesn't bother to deal with Che Wencao.

Mu Zhongyue smiled and said: "Don't worry, lathes, we are analyzing, and now we have checked the gears, gear shafts, oil pumps, and other parts related to the oil circuit, but no abnormalities have been found." ”

Che Wencao glanced at the engine on the repair frame with dissatisfaction, and said, "So many parts are okay?" It must be a problem with the body! Wasn't this second-generation aircraft just developed? There must be something wrong with the processing! ”

Looking at Che Wencao's expression, Li Xiang took a step forward and said, "It can't be that there is a problem with processing." ”

Che Wencao frowned, glanced at Li Xiang, and saw that the other party was younger than himself, and snorted coldly: "Who are you?" How can it be said that there is no problem with processing? ”

Mu Zhongyue smiled and introduced: "He is the deputy technical director of the body processing workshop of our China Machinery Company, and he was also responsible for the transformation of the second-generation machine. ”

Hearing this, Che Wencao snorted coldly again and said, "No wonder it is said that the body is fine, it turns out that I want to clear myself of responsibility." ”

"You!" Li Xiang was choked by Che Wencao's words.

Li Xiang turned his head away, disdainful of bothering with him, but he also wondered in his heart, what was the problem? Li Xiang believes in himself, it is absolutely impossible to be a problem with the body.

Li Xiang set his sights on the oil cooling and filtration module installed on the fuselage, which is where the structure of the second-generation aircraft has changed the most.

The oil cooling filter module integrates the oil cooler and the oil filter to form an independent mechanism, leaving enough space to facilitate the layout of the engine.

The advantages of using the Oil Cooling Filter Module are that the design of the engine oil and water circuits is simplified, serviceability is improved, machining tasks are reduced, and weight reduction is achieved.

However, this has greatly increased the requirements for the manufacture of oil cooling filtration modules, including manufacturing, processing and assembly.

Could it be that there is a problem with the oil cooling filtration module? Li Xiang suddenly thought of this possibility, and couldn't help but light up in his eyes.

At this time, Che Wencao saw that Li Xiang was just staring at the engine, and laughed: "Why don't you speak?" I'll just say, only by doubling the assessment can we put an end to quality accidents! I would suggest that our leaders deal with this matter seriously, and in my opinion, the technical person in charge of body processing should be on duty for at least two months! ”

"Ahh

Everyone was in an uproar, and they couldn't imagine that the quality engineer who came to their quality department had such a big temper and wanted to wait for Li Xiang's post.

The punishment of waiting for the post is much more severe than the general assessment deduction, and during the waiting period, only living expenses are paid, which can be said to be the most severe punishment except for expulsion.

Mu Zhongyue was not happy now, and said with a straight face: "Lathe, the cause of the problem has not been analyzed clearly, is it a bit early to talk about the assessment now?" ”

"That's right, the quality department is so powerful!" The people around were also very dissatisfied.

Li Xiang was using his eyes to check the oil cooling filtration module on the engine at this time.

The oil cooling filter module has a very complex internal oil passage and also integrates five valves: two pressure relief valves, auxiliary oil passage bypass valves, oil filter bypass valves, and oil cooler bypass valves.

Any one of these oil passages or valves may work abnormally, which may affect the oil pressure during the test run, or even the failure of the oil supply.

Through item-by-item investigation, Li Xiang finally found the problem, and the corners of his mouth were the same, turned around, and said with a smile: "Don't argue, everyone, if there is really a problem with the body, I am willing to accept the punishment." ”

Che Wencao smiled and said, "Your consciousness is quite high, but even so, it is not an excuse to reduce the punishment." ”

This time, Mu Zhongyue was really angry and was about to speak, but Li Xiang raised his hand, stopped him, and said: "Director Mu, it is our responsibility, I am willing to be punished, but if it is not our responsibility, then it will be a different matter." ”

"Not your responsibility? Then you say, what went wrong! Che Wencao asked arrogantly.

Li Xiang smiled slightly, did not answer, but pointed his hand to the oil cooling filtration module on the engine.