The people from Tianyang Ceramics Factory looked at each other for a while, and finally Lu spoke together, "Expert Hao, I didn't see any special movements of you. I just closed my eyes and listened with my ears for a few minutes, and then touched it with my fingers twice. How could I tell if there was a problem with the oil cylinder seal?"

"Yes, expert Hao," Sun Guichao couldn't help but ask, "After the filter press had a slurry failure, I stayed next to the machine and listened for two days, but I didn't hear what was wrong with the sound of the machine running. Why did you hear that there was something wrong with the oil cylinder seal in just a few minutes?"

"Haha," Hao Shuang touched his hairline and said with a smile: "Master Sun, you misunderstood! Although I did try to use my ears to tell whether there were any abnormal noises during the operation of the equipment, unfortunately, like you, I didn't hear anything abnormal in the sound of the equipment running."

I'll have fun!

It turns out that Expert Hao’s judgment on the failure of the filter press cylinder is not something he can tell with his ears?

This misunderstanding is a big deal!

Sun Guichao smiled awkwardly and asked again: "Expert Hao, how did you determine that the oil cylinder of the filter press was malfunctioning? Could it be that you touched your fingers twice afterwards?"

"Ori!" Hao Shuang reached out and praised Sun Guichao, and replied with a smile: "Mr. Sun guessed it well. It was the few strokes I touched my fingers behind and it was determined that there was a problem with the oil cylinder seal."

Seeing that the people around him, including Lu Ji-chi, stretched their necks and waited for him to continue talking, Hao Shuang stopped talking and explained: "Let's not talk about the specific reasons, let's talk about the big issues first. In other words, what is the factor in the direction that caused the filter press to run off. I think Mr. Sun should have a clear idea before I arrive, right?"

Sun Guichao nodded and replied: "We do know this question, that is, the hydraulic oil working pressure of the filter press is relatively low. However, there are many factors that cause the hydraulic oil working pressure of the filter press to be relatively low."

"On the one hand, the wear and damage of components such as axial plug pumps, solenoid reversing valves and cylinder seals will cause the working pressure of the hydraulic oil to be low; on the other hand, the adjustment of the pressure switch of the relief valve and the failure or damage of the electrical contact pressure gauge will also cause the force generated by the cylinder piston to be small."

"In our experience, there is no way to judge which part or which part has a problem!"

"Haha," Hao Shuang laughed again and said, "General Engineer Sun, if there is any problem with other parts, it may be more troublesome to judge. However, if there is a problem with the cylinder seal, it must be relatively simple to judge."

No way?

If there is a problem with the oil cylinder seal, it is relatively simple to judge?

Expert Hao, don’t just rely on your high hairline to talk nonsense!

Sun Guichao felt that his views were simply subverted.

The sealing ring of the oil cylinder is mounted on the cylinder piston and is located inside the cylinder. If the sealing ring of the oil cylinder wears or is damaged, it cannot be seen from the outside. Therefore, it has always been a relatively difficult and complex technical problem to determine whether the sealing ring in the oil cylinder is worn or damaged.

Why did you come to Expert Hao? Instead, you think that there is a problem with the sealing of the oil cylinder, and it is relatively simple to judge?

Not only Sun Guichao, but also the head of the equipment department of Tianyang Ceramics Factory and the technicians under him, were particularly shocked. Some technicians who were unrestrained and did not know how to hide their inner emotions, and even engraved the words "You are a liar" on their faces.

In contrast, Lu Jiti, the factory director, did not have that deep understanding of hydraulic filter presses, but did not have much expression. He looked at Hao Shuang with an excited look and waited for him to continue talking.

"Expert Hao, how is it a simple method?" As deputy factory director and chief engineer, Sun Guichao has also seen strong winds and waves. He quickly adjusted his emotions and asked Hao Shuang for advice.

"It's very simple, come and see!" Hao Shuang grabbed Sun Guichao's hand, dragged him to the filter press, pointed at a part on the filter press, and said to him: "Master Sun, press this part with your fingers to see what it feels like?"

Sun Guichao looked at the part of Hao Shuang's finger, which was one of the places that Hao Shuang pressed with his hands just now, so he couldn't help but wonder, could there be something special about this part?

While thinking, he reached out to press the part that Hao Shuang pointed out, and felt that these tentacles were warm, which made him feel like he was sleeping in the countryside after he was a child.

Huh?

How is that possible!

It is mid-March, and it is the cold and chilly season.

There is neither a stove nor an air conditioner in the pulping workshop. The filter press should be cold and cold to the touch. Why is this place as warm as jade?

Sun Guichao moved his hand away from the part that Hao Shuang pointed out, and then fell onto other parts of the filter press, and then the familiar cold touch came back.

Seeing Sun Guichao's surprised expression, Lu Jizhi couldn't help but touch the place where Hao Shuang pointed, and then couldn't help but scream, "Expert Hao, what's going on? Why is this part so hot?"

"Hehe," Hao Shuang touched his hairline proudly and said, "It's very simple, because this place is the place where hydraulic oil leaks. Because in the place where hydraulic oil leaks, the friction will increase. Under the repeated movement of the cylinder piston, the temperature will increase significantly compared to other parts."

Is the truth really that simple?

Lu collectively turned his attention to Sun Guichao with skepticism.

Professional issues must be left to professionals to judge.

In terms of mechanical equipment, Lu Jitong believes that Sun Guichao, a professional, has much more reliable judgment than himself.

But he didn't expect Sun Guichao to stand there, frowning and not speaking.

Obviously, it is difficult for Sun Guichao to make a direct judgment on whether Hao Shuang’s statement is reliable.

The reason is very simple. Before purchasing the hydraulic filter press of Neiqi Company, Tianyang Ceramics Factory used the filter press, although it was also equipped with a hydraulic filter plate compression device, the operation of the entire compression device was operated by manpower. Whether it was the pressure of the cylinder piston and the reciprocating speed of the piston, there was no way to compare with the automatic hydraulic filter press of Neiqi Company.

Therefore, although the old filter presses in the previous style often experienced oil leakage in the oil cylinder, due to the limited friction and reciprocating speed, there was no increase in the temperature at the oil leakage area.

However, the situation of this hydraulic filter press of Neqi Company is different. Not only does the piston pressure be high, but the speed of reciprocating is also fast. In this case, if the oil leakage of the oil cylinder occurs, friction and heating may occur.

But these are Sun Guichao's theoretical conjectures. How could he easily judge whether what Hao Shuang said was right or wrong before it was actually verified?

After poking the Yahuazi for a long time, Sun Guichao said: "Director Lu, it is very easy to verify the words of Expert Hao. Remove the oil cylinder and check it on site?"

"Yes!" Hao Shuang said to Lu Jitong with a smile: "Director Lu, is my judgment correct? It still needs to be verified by facts."
Chapter completed!