The Rise of Heavy Industry 1980

Zhang Miaomiao put the heat treatment parameter table she had checked on the table, and said in a not very confident tone: "Section Chief Zhuang, this parameter table is really the heat treatment parameter of new materials? I found that there are many problems...... Based on my experience, there should be problems, and I would like to ask you about them one by one.

Zhuang Rongfeng forced a smile and said, "Please speak."

Zhang Miaomiao said: "The first question, the parameter table shows that trace elements such as manganese and chromium are added at 750 degrees, which is different from my previous knowledge, generally manganese and chromium need to be added above 850 degrees...... I don't know if I'm right.

Zhuang Rongfeng nodded and said: "850 degrees is the basic common sense of basic alloys, you are right, there must be a problem with this parameter...... Zhang

Miaomiao said: "Well, there is a second problem, the parameter table shows that the holding time is up to half an hour when 1200 degrees, I guess the purpose of heat preservation is to promote the formation of austenite." This is no problem, and then when the temperature is lowered to about 1100 degrees, continue to keep it warm for more than an hour, this purpose should be to promote the formation of martensite at the edge of the austenite, right?"

Zhuang Rongfeng nodded and said, "It should be like this."

Zhang Miaomiao then said: "That's strange, the formation of martensite generally requires tempering process, otherwise the structure of martensite is too coarse, which has a great impact on the toughness of the material, why is there no tempering here?"

Zhuang Rongfeng tried to maintain his calmness, but he was about to go crazy. The tempering process did exist, and he deleted it for confidentiality...... The question is, who would have thought that such details could be singled out.

"This...... I'll have to check with the technical department about this. Zhuang Rongfeng said.

Zhang Miaomiao let out an "oh", and then said: "There is a third problem

...... Zhuang Rongfeng said busily: "Oh, this little Zhang Gong, it seems that you still find quite a lot of problems...... I think there may be a problem with this document, and it may not be the latest version...... Wait for me to confirm with the technical department first!"

After speaking, Zhuang Rongfeng hurriedly walked to the landline and called the technical department of the steel mill. This panicked move made Zhang Miaomiao feel a little embarrassed, looked at Wang Chaoyang and said, "Shouldn't I say so much?"

Wang Chaoyang smiled: "We are engineers, we just want to be more serious!"

After the phone was dialed, the rough voice of Luo Yongqiang, the minister of technology, came from the receiver.

"Lao Zhuang, are you very idle, why do you always call me

?" "Oh, I have a heat treatment parameter table of Mn5Cr18 in my hand, not the latest version, I want to confirm a few questions with you separately......" "It's

not the latest version, what are you kidding Lao Zhuang, how can it not be the latest?"

"Nonsense, there are different versions of the file, of course the one in my hand may not be the latest version!" Zhuang Rongfeng couldn't wait to rush back to the headquarters and knocked twice on the head of the technical minister. Lao Tzu is acting hard here, can't you cooperate?"

"There is only one version of the heat treatment parameter table, that is the zero version, I am very sure of this, if you can find other versions, Lao Tzu will eat it on the spot!" Luo Yongqiang's voice was even louder.

"This ......" Zhuang Rongfeng's momentum shrank instantly, pursed the corners of his mouth, and hung up the phone directly.

Back in front of Wang Chaoyang and Zhang Miaomiao, Zhuang Rongfeng looked a little tired, and a layer of sweat the size of a grain of rice appeared on his forehead.

"Section Chief Zhuang, are you okay?" Zhang Miaomiao hurriedly asked, this girl was blaming herself, she knew that she had made Zhuang Rongfeng so nervous, so she didn't ask so many questions.

"I'm fine, how can I be fine...... Hahaha......"

Zhuang Rongfeng raised his head and said loudly, the expression on his face was a little strange, and he couldn't tell whether he was laughing or crying. Zhuang Rongfeng continued: "Wang Gong and Zhang Gong, you have found a lot of problems in the data, which shows that you are very careful, and this alone is worthy of admiration. As for this information...... It may be that I came too hastily this time, and there are some problems with the information, so I will not discuss the information for the time being, and continue to talk about other issues!"

Wang Chaoyang nodded and said, "It's okay." Let's talk about our thoughts on improving the properties of materials...... Section Chief Zhuang, you can take a note of it, so as not to have any problems with the materials.

Looking at the corners of Wang Chaoyang's lightly raised mouth, Zhuang Rongfeng's heart suddenly jumped, that smile was by no means funny, and said that lest the information be wrong again, isn't it obvious that there are some people!

" There are two main ways to improve the performance of materials, one is to adjust trace elements, and the other is to optimize the heat treatment process. Let's talk about trace elements first, manganese and chromium are the key elements of high-strength alloy steel, so I recommend making a fuss about these two elements.

Wang Chaoyang bit the word "make a fuss" very hard, then looked at

Zhuang Rongfeng and said, "Section Chief Zhuang, do you think it's right?" Zhuang Rongfeng must have seen through it a long time ago!

Zhuang Rongfeng secretly gritted his teeth, and had to smile on his face: "I think it makes sense, you go on."

Wang Chaoyang said: "Then it can be adjusted according to a certain proportion." Section Chief Zhuang, I will write out a few sets of expected values for you later, you can discuss it with your technical department, and try to make a furnace to verify the effect.

Immediately after, Wang Chaoyang wrote down several sets of combined values of manganese and chromium on a piece of paper. Zhuang Rongfeng took out his notebook and recorded it all.

In fact, the trace elements of alloy steel are very difficult to grasp even in later generations. There are more than 10 types of elements, and even the content of each element changes by one thousandth will affect the overall performance of the steel, if you consider the processing process of the steel...... There will be tens of thousands of combinations, and it is simply unrealistic to verify them one by one.

But Wang Chaoyang has the special benefits of being a traverser...... He has used many kinds of materials before, some are resistant to high temperatures, some are resistant to ultra-low temperatures, and some are extremely strong...... You can imagine the launch process of the aviation vehicle and the environment of the universe, almost all the harsh and demanding working conditions, Wang Chaoyang's previous work has been involved.

Although Wang Chaoyang did not write down the parameters of all the materials, he still had an impression in his mind.

For example, now, the sets of recommended values he gives are the impressions in his mind. Although these impressions are not accurate enough, they are a direction, and with these recommended values, Yanshan Steel Mill can at least take hundreds of detours.

"In addition to adjusting the trace elements, we can also start with the heat treatment process. But this process is too complicated, Section Chief Zhuang, after you update the information, let's discuss it in detail, okay?" Wang Chaoyang said again.

"Absolutely. Zhuang Rongfeng nodded.

Wang Chaoyang also nodded, and said, "Then there is another issue that needs to be discussed next, exclusive supply, what is Section Chief Zhuang's opinion?"

Zhuang Rongfeng frowned and did not speak immediately.