Chapter 259 Good News and Bad News
Chen Yuehong was preparing tonight's meal. Wan Yueqin wanted to help but she refused.
The couple is a dual-employed couple. Although they can't compare with Gao Zhendong and Wang Dezhu, they really want to treat guests, so that thing is still good.
Chen Yuehong is from the Northeast, so the food he makes is very Northeastern. It comes out of one pot, and this is the main dish. Even though it is only this one, it is rich in food.
A large iron pot. The pancakes on the edge of the iron pot are golden. Potatoes, beans, meat, etc. are stewed in the pot. The soup has reduced its juice and is slightly sticky. Bubbles and exudes an alluring aroma.
Gao Zhendong sniffed and said with a smile: "Sister-in-law's craftsmanship is authentic!"
Chen Yuehong smoothed her hair with her little finger: "As long as Platoon Leader Gao likes it, don't leave it to me today. "
My wife Xie Jianye has this authentic Northeastern craftsmanship. I will bring over the things sent by the section workers of the Carbon Research Institute and ask my sister-in-law to cook them someday, so that we can have a few more meals together, but there is no need to bring them out today, then. It's disrespectful to Lao Xie.
It’s okay to bring things out to share in other people’s dishes before they start cooking. It’s very inappropriate to bring things out after other people’s dishes are ready. Why, are you looking down on my family?
A few people sat down, congratulations were due, and thanks were due.
For Gao Zhendong, Xie Jianye and his wife were extremely grateful, as it had solved so many of their problems, so when Gao Zhendong came over, he simply walked in empty-handed and brought something with him, fearing that Lao Xie would be under great psychological pressure.
Twenty industrial tickets as gifts are enough, any more would be unsightly.
The three men drank happily, and even Chen Yuehong picked up a cup and drank a few drinks with them. Her personality was different from Wan Yueqin, a northeastern girl, bold and generous.
The comrades who fought together in bloody battles have finally established a foothold in the capital.
——
Northeast Carbon Research Institute, they finally fired the high-performance graphite material. At the same time, they also used the tungsten-molybdenum alloy sent by Gao Zhendong as a graphite backing for testing together.
The vice president of the Carbon Research Institute and the guests are waiting for the test results in the laboratory.
This customer is also one of the end users of high-performance graphite materials. The original copper-infiltrated silicon-infiltrated graphite has poor mechanical conditions under long-term operation, and its ablation resistance has dropped sharply. After the number they requested, It cannot be used under working conditions of ten seconds, let alone that it may require longer working time.
Therefore, this time all the high-performance graphite materials were finally burned out, and they were also eager to come over and see the test results to see if they could be used this time. If there were any problems, they could analyze them together. .
As the rocket engine roared again and again, Duan Gong also brought over the test data.
"How is it?" Looking at Duan Gong's uncertain face, the vice-dean was a little unsure.
"There is good news and bad news about our graphite material. Dean, which one do you want to listen to first?"
As soon as he said this, the vice president realized that the bad news was probably the bad news. He said: "Listen first."
At least I can keep my good mood going for a while.
“Under X MPa pressure and XXXX combustion chamber temperature, the average ablation rate for 60 seconds of operation has reached the standard, and several inspection batches have reached the standard. The performance is 50% higher than the original silicon-infiltrated and copper-infiltrated material~ 70%, except for one, and the other mechanical properties are also good and meet the expected requirements.”
This news is really good. Ablative performance accounts for a large proportion in the evaluation of throat lining performance indicators.
And the mechanical properties are also good, so there is basically no problem.
"Isn't that all good? Then what's going on with the remaining one?" The vice-dean relaxed. He probably had some flaws. This should be the bad news he said, but One of the batches is defective, so the problem shouldn't be serious.
“It broke into pieces. All the pieces were blown out, so there is no ablation data.”
The vice president couldn’t laugh, and the guest also realized the seriousness of the problem. , one of them is completely broken, so is the situation of the other ones that are not broken also not optimistic?
The guest asked eagerly: "What is the bad news?"
"All of them have cracks. The phenomenon is very serious. They all have more than two rings." Duan Gong said with a bitter smile.
This is really bad news. It means that the material has poor thermal shock resistance. One ring is allowed, but several inspection batches have more than two, and even cracks occurred. That's something fundamentally wrong.
Duan Gong was a little frustrated, but he was not in a bad mood. Since consulting Gao Zhendong during the Chinese New Year, he has effectively solved the cracking after pressing, and successfully fired the finished high-performance graphite throat lining. At least the ablation performance and mechanical properties are good.
It has only been about 2 months, and most of the indicators have been achieved, which is actually very good.
The deputy dean also understood this matter, so he didn't pay too much attention to it. If the guests weren't in a hurry, the progress was actually quite good, so he asked about another matter, which was regarded as a matter of loyalty to others: " What about the batch in the capital? "
Speaking of this, Duan Gong became excited: "Vice Dean, don't tell me, the ones from there are different. His batch is quite good. Okay." The deputy dean also became interested: "Tell me about it."
"Needless to say, it is a metal material with a tensile strength as good as our graphite. Dozens of times, which is pretty good. The average ablation speed is similar to our graphite material, 0.0xx mm/second, but the working pressure required there is 20% higher than ours, the combustion chamber temperature is about the same, and the working time is 120 After the test, the appearance condition was completely up to standard."
The customer was surprised: "What? The working time is 120 seconds and the pressure is 20% higher?"
The increase in these two conditions has more than a simple linear relationship with performance indicators.
This made him feel a little moved, and he looked at the deputy dean: "Dean, do you think we can do this?"
He knew that this was a commissioned test project of the Carbon Research Institute , it may be okay to let him hear the test results, but it may not be able to tell him other information, but how will you know if you don't try.
The vice president shook his head: "You can't use this. Although this thing has good other properties, it is made of metal. Its density is about 8 to 10 times greater than graphite material, and its ablation rate is about the same. In this case, yours is used on medium and large sizes, and the weight does not meet your requirements."
The guest smiled and said: "Dean, you misunderstood, we are not using it specifically. I can’t say, but the indicators I just heard are very useful to us.”
The vice president suddenly realized that the other party was also a large scientific research institute with more than one research project in progress.
The vice president looked at Duan Gong: "Old Duan, are we going to send them something?"
Gao Zhendong and their single crystal furnace, due to long-term testing, some graphite components There is loss, and it needs to be supplemented here to carry out the final decisive test. At the same time, the remaining finished products and test results from this test will also be sent over.
Seeing Duan Gong nod, the vice president said: "Send him over personally to see if he can solve our problems and theirs. I always feel that it was inconvenient to ask about our other problems last time. "
No one is to blame for this. There are regulations, and only what the Carbon Research Institute can say and Gao Zhendong can solve, and the Carbon Research Institute can only come out. What questions can be asked.
"Yeah, okay." Duan Gong agreed readily. It was just for work, not shabby.
The vice president turned to the guest: "We have to ask the National Defense Working Committee first before we can decide whether to disclose relevant information. If there is no problem with the National Defense Working Committee and you are interested, you can go with Lao Duan . ”
The guests also heard what the vice president said and understood that there is hope of solving your problems and our problems by finding this person. He is still a versatile person.
No wonder you even have to ask the National Defense Working Committee to reveal relevant information. Keeping it confidential is no small matter.
At this time, Gao Zhendong did not know that his idea of holding an umbrella for the three armies had been revealed to him by chance. He was now asking people from the Beijing Steel Plant Explain the three types of steel needed by Beijing University of Technology.
The people at the Capital Steel Plant were holding the three copies of the materials and were a bit dumbfounded. No wonder the cooperation plan between the factory and the Third Rolling Mill was like an unequal treaty. The Third Rolling Mill took the dominant position without paying a penny.
It’s really because they have capable people.
Looking at these three very detailed documents in my hand, I basically explained the refining process and heat treatment process of these three types of steel clearly and clearly, let alone a large company like Beijing Steel Works. If you have a factory, you can find a factory with suitable equipment and they can make it.
Although it has not been done yet, the people from the Beijing Steel Plant have the materials and have no doubt about the possibility of success.
They even suspected that others had already done the experiment, and it was only used as a new project to take care of the Beijing Steel Plant.
The third rolling mill is so generous, so heartwarming.
Gao Zhendong talked about the time requirements: "There is no need to rush for these three types of steel. Basically, they can be released in half a year to nine months. They do not need to be developed at the same time. Comrades who use them will probably have to wait for half a year." Only then can it be used. "
Zheng Liangshu is the leader. Although his skills are not very advanced, he knows from the looks of the people in his factory that this time it is safe.
"What about the order? Are there any requirements?" Since there is no need to do it all at once, then just do it one by one, but the order may be a bit particular.
The order determined by Gao Zhendong is the spear, the bolt, and the barrel.
The gun barrel is now made of materials. The two are the icing on the cake. The gun stab is different. This is a timely help. The sooner it comes out, the sooner people from Beijing University of Technology can design a good one based on it. Multifunctional bayonet, Gao Zhendong can also participate in opinions sooner.
Since the size and weight of the gun are limited, it would be better if its materials come out earlier and have more time to polish its specific design.
The volume limitation is easy to understand. The reason why the weight of the bolt is also limited is because the weight of the bolt is related to indicators such as the firearm's rate of fire.
As for the barrel, it doesn’t matter. Even if the material performance is not up to standard in the early stage, just add a heavier barrel, thicken it, and then replace it later. You don’t need to think too much about heat dissipation for squad weapons, and light machine guns Be prepared to use a quick release barrel, so there is no need to worry about the difference in heat dissipation performance between a heavy barrel and a regular barrel.
(End of this chapter)