Chapter 262 Asphalt matches asphalt?
In the evening, a note was posted at the door of the courtyard. On Monday night, a hospital-wide meeting was held to announce something good to everyone.
Why the previous hospital-wide meetings were held on the spot and on the same day, but this time it was not until Monday? This has to be explained by Yi Zhonghai's thoughts.
The previous things are all broken, so it is natural to cut the knot with a sharp knife. What is needed is the name of the whole hospital conference. In the words of Gao Zhendong’s previous life - the procedure is just, and the people who participate, the more Less is better.
This is a good thing, so naturally I want to spread it to the whole hospital. What I want is the effect of publicity-result-oriented. I hope all the young boys will come to participate.
This is not some falsehood, it can be regarded as Yi Zhonghai's experience in working in a compound. Bad things are stopped early and don't go out, and good things spread for thousands of miles. There is no problem.
When Gao Zhendong saw this post when he went out in the morning, he couldn't help but praise Yi Zhonghai's arrangement. After all, everyone still prefers things that are in line with public order and good customs.
Arrived at the factory, Gao Zhendong continued his career as a welding emperor. The equipment in the factory for debugging hardware circuits was more complete, and the electricity was more guaranteed.
Under normal circumstances, he is basically hard at the factory and soft at home, which can be considered a clear division of labor.
But what he didn't expect was that an old acquaintance he had only remembered two days ago came.
Duan Gong flew to the capital with Mr. Cai, a guest of their hospital.
He did not come with the component transport vehicle, which was a bit slow. After asking for instructions from the National Defense Work Committee and getting a positive reply, they directly wrote a letter of introduction, booked a flight, and flew to the capital.
They were not surprised to receive the approval from the National Defense Work Committee. Mr. Cai’s affairs were considered top priority. It could even be said that without so many “Mr. Cai” projects, Gao Zhendong He won't be so important.
It’s not easy to fly these days. It’s not something serious and urgent, so even though they got the permission on Saturday, they didn’t arrive in the capital until Monday afternoon.
This is already the fastest. After a set of processes, this speed can be said to be extremely fast.
It took a lot of effort for Duan Gong to walk into Gao Zhendong's office.
Although the office is still the same office, there seem to be more procedures.
Mr. Cai, who received similar treatment himself, was delighted when he saw it, and couldn't help but look forward to this visit even more.
Gong Duan knocked on the door of Gao Zhendong's office, but no one answered. Someone next to him pointed out: "Comrade, Director Gao is in his computer room, in this one."
Only then did the two of them meet Gao Zhendong, the "Emperor of Welding Martial Arts," in the computer room next door where the scent of pine was lingering.
Looking at the equipment in this room, especially the DJS-59, Mr. Cai felt confident! Only if you are a team member can you have such a thing, but looking at Director Gao's attitude, he is using one by himself! Steady, steady.
But I really didn’t expect that this comrade who worked on materials actually liked electronics as a hobby, and even got involved in the work.
Gao Zhendong invited them to sit down in his office. After all, the computer room smelled faintly of pine and hummed with electricity. If you had a choice, it was not a good place to talk.
Duan Gong is also used to it, so he doesn’t have to be embarrassed if it happens more often. He took the tea handed over by Gao Zhendong and took a sip: "Director Gao, I’m bothering you again this time. Well, this tea Okay."
We are all old acquaintances, so Gao Zhendong didn't say much politely: "If you have anything to say, let me know. The tea is pretty good. I'll give you a few taels later, haha." br>
What an unexpected surprise, Director Gao's tea is quite good, Mr. Cai thought. It’s rare to find good tea these days. If it’s not “high broken”, it’s already pretty good.
What am I thinking? Could it be that you are too relaxed here? Mr. Cai laughed at himself in his heart.
While taking out materials from the bag, Duan Gong said: "It's still about the high-performance graphite throat lining last time. Your advice was very effective. We have successfully burned a batch. There was no problem during the pressing process. Cracked. The overall performance indicators are also good, but there is a small problem. "
Gao Zhendong said with a smile: "It's not easy this time, but you can communicate on the phone if you have small problems. , you have traveled all the way, why have you never been in a car?”
Gao Zhendong really admires them. In addition to solving the problem of cracking of the blank material by himself, this high-performance Other problems with the material were all caused by the Carbon Research Institute itself. Although it is very similar to the material it has mastered, this is not surprising.
Similar conditions, similar staff, similar overall environment, it is not surprising to achieve similar results, not to mention that they have come up with this thing many years in advance. Originally, this thing was already available.
Seeing Gao Zhendong’s joke, Duan Gong also laughed: “Since you gave us so many suggestions, changed the adhesive, and greatly improved the process, the effect is indeed very good, but in the end we got it right. I have a question. I need this thing urgently, and I have other things to do. It’s safer to go directly. This is the user of that material, and he has many questions to discuss with you. "
As Duan Gong said, he handed the graphite throat lining test data he took out to Gao Zhendong, and Mr. Cai quickly corrected: "I am asking for advice, not for communication." Gao Zhendong did not dwell on it. Regarding this specific statement, I opened the test data and looked at it carefully. There is no coding in the data. It is completely open and very detailed.
Sure enough, it looks good all the way. Although the data is slightly lower than the graphite throat liner mastered by Gao Zhendong, there is no essential difference. Overall, it is of the same order of magnitude.
But at the end, Gao Zhendong almost laughed out loud.
It’s not that he was gloating about his misfortune, but he didn’t expect that the Carbon Research Institute would still fall into the same pit as that paper. It seems that technical inertia does exist. The technical route they chose is basically the same as what they saw in the previous life. almost.
Because I couldn't ask them about the specific ratio rashly, I couldn't remind them of this matter. As a result, they still went down the same old path.
Serious, can’t laugh! For a moment, he actually had a sense of humor in his heart, similar to "Don't laugh at fellow motorcycle riders."
Since it is this problem, it is estimated that the cause is similar, and Gao Zhendong does not waste time by making any detours.
"The problem is cracking, right?"
Duan Gong nodded: "Well, you saw it too, all of them have serious cracks, all batches. If it happens accidentally, we can find other reasons, but All of them are, then there must be something fundamental that we didn’t consider well, so I came here to ask you to take a look, I think you are pretty good at cracks, haha.”
Lao Duan is in a good mood, and even now he is no longer depressed.
In fact, when doing research, you don’t have to worry about such obvious, large-scale, and regular problems, no matter how big they are, because the causes are mostly clear, and the results are nothing more than two: find the problem, solve it; find the problem, solve it No, it’s hung up.
Generally, the problem is not found, but whether the problem can be solved is another matter. But no matter what the result is, the worst is just to cut off the head and leave a big scar. It is refreshing and not tormenting. .
On the contrary, if it is an occasional problem without a clear pattern, it will be troublesome.
Take an example from another industry: if the account is short of hundreds or tens of millions, Finance: It’s trivial; if the account is short of one penny, Finance: Let me die!
Seeing the old Duan's appearance, Gao Zhendong smiled. This old man is really interesting: "What materials do you use for raw materials?"
The test results of this thing cannot be said. Yes, Duan Gong did not hesitate: "The main ingredients are pitch coke or artificial graphite powder, and their mixtures, but the situation is the same."
Gao Zhendong did not hesitate: "Artificial graphite powder is not good, this The affinity between the thing and the adhesive is small, and the bonding effect is poor, resulting in poor thermal shock resistance.”
Thermal shock resistance, the thermal shock here has nothing to do with vibration, but refers to drastic changes in temperature. Simply put, it is the ability to avoid problems or major problems when the temperature changes drastically.
Duan Gong also understood: "That's right, but as for the asphalt coke, this should have an affinity with the sulfur-modified asphalt binder, right? Asphalt goes with asphalt. This binder is still yours Help us choose it, hey, it’s really good.”
Gao Zhendong was happy. Lao Duan’s words reminded him of the last time they chose a binder, but they didn’t consider it because sulfur would accelerate the aging of asphalt. The most suitable sulfur modified asphalt, but I never thought that it will burn if it sticks, and the final product has nothing to do with asphalt.
He smiled and said: "Old Duan, whether it cracks or not has something to do with it, but not much. The coke affinity of asphalt is okay, but there is a problem. After graphitization, it is brittle and thermally expands. The coefficient, elastic modulus, and resistance are relatively large, but the thermal conductivity is relatively low."
Every time he said a word, Duan Gong's face turned pale. It was over, it seemed that asphalt could not be used. Coke, these characteristics are all caused by cracking under thermal shock. It is simply tailor-made. But if asphalt coke is not used, what can be used to replace it?
Mr. Cai also felt gloomy after hearing this. If all the previous steps were taken into account, it would be in vain?
But when Lao Duan saw Gao Zhendong's expression, he immediately stopped worrying. He could smile so happily. He must have a back-up plan. If others didn't know about Director Gao, how could he know?
He chuckled: "Director Gao, if a wise man doesn't tell secrets, you must have something to do, right?"
Gao Zhendong didn't understand that Mr. Cai saw Lao Duan like this, I can't help but be a little surprised, are you so confident? Maybe they are just laughing at you.
But the facts immediately told him what an old acquaintance meant.
Gao Zhendong nodded: "Well, I have a suggestion, use petroleum coke. In fact, for your land, petroleum coke is much easier than asphalt coke, right? Haha."
Speaking of this, He laughed again because he could guess what Duan Gong would probably answer.
(End of this chapter)