Chapter 449: It turns out that I'm waiting for you here
When Zhou Yicheng said this, it was completely out of instinct. He was a student of Chen Heqian, and his major was in materials, so he knew much more about materials than Chen Jing. Qin Hai mentioned the kind of low-temperature steel that Zhou Yicheng had earlier
I have been studying it for a long time in Nian, and I was quite impressed. Seeing Qin Hai using this kind of steel trumpet to make things difficult for Chen Jing, Zhou Yicheng answered directly without even thinking about it.
When he finished speaking, he realized that everyone in the room was looking at him with strange eyes. He was stunned for a moment, and his face turned pale.
What's weird, it turns out that Qin Hai is waiting for him here.
, mainly used to manufacture pipelines in the temperature range of -47 to -101 degrees Celsius. This type of pipeline is included in the ethylene compressor development plan proposed by Jingshi Machinery. The most terrible thing is that they specifically mentioned in the report, but
Because this kind of steel in China is not up to standard, austenitic stainless steel is used instead.
The steel type that the Americans had developed in 1964, Jingshi Machinery still claimed in the 1991 report that it was not up to par. Based on this, do they still have the nerve to claim to have reached the international level in the mid-1980s?
"Secretary-General Qin, you can't say this..." Zhou Yicheng blushed and tried to defend himself. Of course he also had reasons to defend himself. Just because a steel material failed to meet the standards was not enough to deny the technical level of the whole machine. Qin Hai was here
Digging a hole somewhere for them to jump into seems a bit rogue.
There were no emotional fluctuations on Qin Hai's face. He continued to ask: "The use of arc ultrasonic technology in low-temperature steel welding can improve the impact toughness of the joint. This is a process specification that has been formed abroad in the late 1970s. Why is it used in yours?"
That’s not reflected in the plan?”
"Arc ultrasound..." Zhuo Jianguo scratched his scalp and became speechless. In fact, when formulating this version of the plan, he really considered this issue, but because he was not sure how to solve several of the difficulties, he finally gave up.
The application of this technology. He did not expect that Qin Hai's eyes would be so poisonous, which also brought up this problem.
When Qin Hai asked the question, he didn't expect the other party to give a satisfactory answer. He flipped through the report and asked his questions one after another, completely ignoring that the faces of everyone headed by Zhou Yicheng became increasingly ugly.
, the atmosphere in the room was as depressing as if it was about to rain.
"Secretary-General Qin, did you come to Jingshiji today to find our problems?" Chen Jing was the most impatient among them. When Qin Hai's problems accumulated to more than 20, she finally
He couldn't listen anymore, so he interrupted Qin Hai and asked angrily.
Qin Haicai is not afraid of the other party's anger. Being angry means that the other party has nothing to say, so he uses this method to fight back. If Chen Jing can tell a few truths, why is she so angry?
"Chief Chen is serious. I came here today just to discuss the problem with the experts. How can I say that I am looking for faults?" Qin Hai said with a smile.
Chen Jingdao: "What you just said is obviously just nitpicking. I admit that there are indeed some ill-considered aspects in our plan, but these are minor details after all. They are not mainstream. Could it be that your Planning Commission just looks at the problem?"
Do you only know these details?"
Qin Hai turned to Zhou Yicheng and asked: "Director Zhou, do you also think that the question I just raised is just a side issue?"
"These questions... some of them are of course more important, or very important." Zhou Yicheng answered carefully. He did not dare to say like Chen Jing that these questions were just minor matters, for laymen to watch the excitement. For experts to know the truth, the truth is
Those who know the industry will know that these issues pointed out by Qin Hai are actually very important. They are the key links that affect the technological gap between China and foreign countries.
As the chief of the intelligence section, Chen Jing certainly didn't mean that she didn't know the importance of these issues. But she had some contempt for Qin Hai, and felt that Qin Hai himself didn't necessarily understand these technologies. I'm afraid he was just following what others said. She wanted to pass
Denying the importance of these technologies in an understatement makes it inconvenient for Qin Hai to pursue further.
But Zhou Yicheng was different. From Qin Hai's narration of numerous family treasures, Zhou Yicheng gradually felt that the young man in front of him was not simple. Thinking of Chen Heqian's admiration for Qin Hai, Zhou Yicheng seemed to understand something. Qin Hai was able to point out these problems.
, I must have come prepared. It may not be easy to fool them all.
"Secretary-General Qin, you also need to understand the difficulties of our company. Objectively speaking, these problems you just mentioned exist. But they are not the problems of our company, so it is unrealistic to expect us to solve them all.
, we have also cooperated with the General Institute of Iron and Steel to develop it. Due to problems in the heat treatment process, the surface of the manufactured steel pipe is prone to cracks, the mechanical properties are not up to standard, and the impact value at a low temperature of -101 degrees Celsius is low.
We can't use such steel to make compressors, right?" Zhou Yicheng said patiently to Qin Hai.
Qin Hai said: "If the heat treatment process is not good, we can continue to develop it. Spheroidizing annealing, controlling the quenching temperature, and multiple temperings are nothing more than this routine, right?"
"What you said is right." Zhou Yicheng said angrily. What Qin Hai said is really a mature routine. The problem is that Zhou Yicheng himself is engaged in research in this area. Why does he need a young man to teach him this kind of class?
? He asked back: "Secretary-General Qin, I heard from Teacher Chen that you are also an expert in metal materials. Do you know how many experiments you need to do for these things you just mentioned casually?"
Heat treatment is nothing more than four processes: annealing, quenching, normalizing, and tempering. However, each process has several temperature and time options, as well as different sequences, which can ultimately form an astronomical number of combinations. For example, there is
The heat treatment process of this kind of steel is expressed as follows:
Heat to 780 to 800 degrees for isothermal annealing, keep warm for 8 to 15 hours, then cool to 350 to 400 degrees, keep warm for 4 to 10 hours, then raise the temperature to 650 to 670 degrees, keep warm for 32 to 60 hours...
In this process, with slight adjustments to temperature and time, steel materials with different properties will be produced. It is not an exaggeration to say that the difference is a thousand miles.
Of course, materials scientists are not just trying their luck without a goal. Through theoretical research, they can come up with some general rules, such as what kind of lattice structure metal will produce at which temperature, and this structure is important for
What impact will the hardness and toughness of metal materials have? Experimenters conduct experiments under the guidance of theory and finally find the best combination.
In the history of science, there have also been situations where scientists conducted experiments according to theories, but the experimental results were very different from the theoretical derivation. The occurrence of this situation means that there is a principle that has not been grasped by predecessors. Once this principle is understood
Once people understand it thoroughly, material research has jumped to a new level.
Materials research is both arduous and full of contingency, making it hard to stop.
Qin Hai knew the difficulty of this. The difference between him and Zhou Yicheng was that Zhou Yicheng chose to go around the difficulties, but Qin Hai knew that if he did not overcome these obstacles, he would never be able to achieve a breakthrough. He said to Zhou Yicheng: "Director Zhou,
Aren’t these experiments something that should be done? We can’t always rely on foreign countries for materials. These experiments will have to be done sooner or later. Who are you going to put this burden on?”
His words made everyone feel uncomfortable. Zhuo Jianguo said coldly: "It's not easy to talk big. Secretary Qin will know after he does it himself."
Qin Hai smiled slightly and said, "What a coincidence, Chief Zhuo, I have actually done these experiments."
Having said this, he opened his briefcase, took out another pile of information from the bag, handed it to Zhou Yicheng, and said: "Director Zhou, take a look at our experimental results and give us some advice.
"
"Experimental results?" Several technicians were a little surprised. They all gathered next to Zhou Yicheng and observed the information Qin Hai handed him.
I saw that the content of the information is very concise. The first is the ratio of various elements, then the heat treatment process, and then the specific performance parameters, such as surface hardness, stability, low-temperature impact toughness, fatigue resistance, etc.
etc. Finally, there are scanning electron microscope photos of the fracture surface when fractured at different temperatures. From these pictures with micron resolution, the specific shape of the metal lattice can be seen.
Everyone was engaged in technology and had some basic knowledge of material technology. They knew what these parameters meant at a glance. Zhou Yicheng was the most irritated. He took this information and asked Qin Hai in surprise: "Is this really true?"
Is it the technology you developed?"
Qin Hai said disapprovingly: "Where there is a will, there is a way. What foreigners can do, why can't we?"
"Then...how much time did you spend?" Zhou Yicheng asked.
"Four months," Qin Hai replied. What he was talking about was basically the time it took for the Low Temperature Materials Research Center of the Chemical Engineering Design Institute to develop this material. Of course, Qin Hai would not specialize in the role played by Tsereteli.
proposed.
"It's not easy. This is really rare." Zhou Yicheng murmured, "If we do it, I estimate it will take at least a year."
Qin Hai sneered and said: "Director Zhou is too optimistic, isn't he? According to my review of the files of the Planning Commission, Jingshiji was preparing to develop this material as early as five years ago, but there has been no result yet. It has been five years.
It’s over. Director Zhou said that it can be done in one year. Isn’t that a bit exaggerated?”
"This..." Zhou Yicheng managed to avoid being choked to death by Qin Hai. Qin Hai's calculation of the time was correct. The key point is that Jingshi Machinery has not continued to develop this material in the past five years.
The total time it took to grow the materials was less than three months. However, in this case, how could Zhou Yicheng explain it? (To be continued, please search Piaotian Literature, the novel is better and updated faster!