Chapter 80 Material Census
Leaving aside matters in the ministry, Gao Zhendong is deploying ESR scientific research work.
ESR is actually very simple in principle and not complicated in terms of equipment. It is a typical example of people who want to see results and do not require high industrial capabilities and scientific research capabilities. Of course, they have to produce Very good results, that's another story.
Structurally speaking, ESR, apart from the self-loss electrodes that need to be smelted, has three major parts: power supply (including short network), crystallizer (including bottom water tank), and electroslag slag system.
The functions of each block are clear at a glance, and there are no particularly high requirements for manufacturing.
In order to produce results quickly, Gao Zhendong did not do too many fancy things on the first-generation product, and mostly followed the principle of simplicity.
For the power supply, Gao Zhendong chose AC single-phase, self-consumable single electrode. In this way, the power supply part reduces the AC to DC part and is much simpler. It is single-phase and single-electrode, which also makes the structure of the short network, wiring, and electrode parts simpler.
Gao Zhendong assigned the design and manufacturing of the power supply to his colleagues in the research group. As long as the parameters and constraints are given, this thing is not difficult for his colleagues.
His work in the power supply section mainly focuses on the control of voltage and current. By sampling the voltage and current, he uses analog PID control technology to control the optimal behavior of the electrode in the slag. Insert the position to control the voltage and current on the consumable electrode within a more ideal range.
You must know that the electrical properties of electroslag are very complex and change at any time. A fixed insertion depth cannot make the smelting current reach the optimal range.
In this way, the surface quality and internal quality of the refined metal ingot can be effectively improved, while power consumption can be reduced.
Gao Zhendong will do this part of the control circuit himself.
In the crystallizer part, the flower work is a little bigger. He did not choose a fixed ingot mode crystallizer, but chose a sliding crystallizer + fixed bottom water tank structure.
Due to the principle of metal solidification and crystallization, the depth of the crystallizer is theoretically 3 to 6 times the diameter of the crystal. This prevents some metal ingots with a large aspect ratio from being optimally crystallized. Conditions, or secondary processing after ingot casting is required, such as gun tubes, rough transmission shafts, etc.
Gao Zhendong chooses a sliding crystallizer, which can control the crystallizer to continuously slide upward after the metal ingot solidifies, and continuously cast the ingot. In fact, there are already some electroslag continuous casting technologies in it.
Controlling the sliding movement of the crystallizer is done automatically. How does it work automatically? Thermocouple, to put it simply, set a sliding temperature. When the thermocouple detects that the temperature of the ingot drops to this temperature, it will automatically slide upward.
Of course, continuous casting with higher requirements is not so simple, but this stage is enough.
What to do if it fails? In other words, just turn off the sliding control system, use it as a fixed ingot mold crystallizer, and slowly study and test the continuous casting mode.
In fact, at the beginning of the research, Gao Zhendong planned to use this thing as a fixed ingot mold crystallizer, and continuous casting would be done at a later stage.
Gao Zhendong gave the overall design, characteristic parameters and environmental requirements of the crystallizer, and handed over the manufacturing, testing and detail optimization to his colleagues in the research group. Gao Zhendong was only responsible for the sliding control system of the crystallizer.
The rest is electroslag. For the time being, Gao Zhendong is planning to directly come up with the ratio himself. Don’t ask, he’s a genius if you ask.
As for the coordination of personnel, equipment, materials, and sites inside and outside the factory, it is very complicated and troublesome, but isn’t Deputy Factory Director Li here? If you leave this kind of thing to him, it will be like a duck in water, Li The deputy director also works very hard. If there was any problem in the factory, Gao Zhendong rushed to it before he even had a problem.
You may say that this person may have some problems with his personal ethics, but when things happen, he is really good at it. Anyone who can climb to this position is not a fuel-efficient person. lamp.
——
Time passed quickly and it was another Thursday.
ESR is progressing basically smoothly. In fact, the drawings and designs given by Gao Zhendong are basically mature technologies that have been tested in practice in the future. It is normal for it to go smoothly.
But the mature technology in the future, at this time, will be advanced technology.
The private sale of transistor computers is going quite smoothly. After all, Gao Zhendong spent many years battling the bug devil in his last life. He has quite a lot of experience. He has finished writing the vi editor and is currently using assembly to implement some of it. Commonly used mathematical functions.
The only thing I am not happy about is that there is no big product this week, a novel, which is okay to pass the time.
In the conference room of the 17th Machinery Department, several soldiers in military uniforms were having a meeting with the leaders and middle-level cadres of the 17th Machinery Department.
A middle-aged soldier, after talking about the situation to be exchanged, concluded: "This is the situation. The shortage of nickel has had a great impact on the weapons production of the Prairie Tractor Factory. Over there There is also prediction that research on alternative steel types has been launched in advance, but no results have been produced yet.”
Another soldier added: “The armor steel of our imitation 5DL tank requires 300 yuan per furnace. For many kilograms of nickel, the current situation is that although there is still some inventory and there is some domestic production, the gap between the demand and the demand is very large.”
The leaders of the 17th Machinery Department are also scratching their heads about this matter. One of them said: "Now, firstly, we will see if more ores can be found in the geology, and secondly, we will see if we can find alternative alloys that do not use nickel, or use less nickel."
First A soldier was impatient: "We all know what you said, but we can't solve anything now."
Everyone is also thinking of their own ways and coming up with ideas.
Finally, the leader who is most familiar with the third rolling mill made a concluding speech: "The ideas just discussed by all comrades are very good. We will arrange for relevant units to follow up and carry out the work as soon as possible."
Speaking of this, he changed the topic: "But it is urgent and we cannot think of a solution. I think this way, we will do a big survey and ask the subordinate factories and mines to report the characteristics and parameters of their existing products immediately, and then the grassland Comrades from the tractor factory, carefully select and select whether there are materials that can be temporarily replaced and have similar basic performance. "
This kind of investigation must only be done by a similar unit of the 17th Machinery Department. After hearing this, the soldiers and comrades from the Prairie Tractor Factory had no choice but to agree. After all, it was a way to go. The Seventeenth Machinery Department was also trying its best to find a way, although the results were not optimistic.
Hearing their nods of agreement, the people from the 17th Machinery Department immediately arranged manpower and started calling their subordinate factories and mines to submit product information.
When the news reached the No. 3 Rolling Plant, Lao Chen called Deputy Section Chief Zhao and Gao Zhendong over. After all, in terms of products in the No. 3 Rolling Plant, all innovative and leading products came from this person.
As of yesterday, I finally finished taking care of some household chores at home.
Probably starting tomorrow or the day after tomorrow, the update will basically resume at 6 a.m.
(End of this chapter)