my scientific age

Chapter 269 Silicon Steel!

Before I knew it, the time came to 11:55 in the middle of the night, and there were only 5 minutes left before the arrival of the next day.

"Professor, this is the simulated calculation data. I can't hold it anymore, and I can't perform the simulated calculation again." Yu Huaqiang supported the familiar feeling of extreme fatigue and dizziness, and finished the simulated calculation for about 25 seconds, while writing the calculation result, While talking to Zhuang Qianding truthfully.

After completing the theoretical design of the cooling tower, the remaining content is to combine the subsystems such as the compressor, filter, turbo expander, condensing evaporator and cooling tower, and come up with the theoretical design of the air separation plant assembly.

This step is simple and complicated.

Fortunately, Professor Zhuang's technical strength is not bragging. He easily gave the theoretical design of the air separation plant assembly, and Yu Hua was responsible for the simulation calculation based on the entire design.

"Enough, enough, you rest first, now from a theoretical design point of view, this industrial-grade air separation plant has been successfully developed, come, drink a sip of water, celebrate our successful research and development, it is unimaginable, we really did it "Zhuang Qianding motioned for Yu Hua to rest, and wiped the fine sweat oozing from his forehead with his right hand. Looking at the blueprint of the air separation equipment assembly on the blueprint, he breathed a sigh of relief. A smile appeared on his face, and he picked up his right hand. Handing the cup to Yu Hua, he joked.

Successful.

This is a moment of no turbulence but great significance, no flowers, no applause, no cheers and excitement, no recognition and encouragement, and nothing familiar.

Some are just a design drawing of the air separation plant assembly that has been rigorously verified by theory, and a cup of cold boiled water.

Yu Hua picked up the towel to wipe off the sweat, took the cold water glass, glanced at it, and responded with a smile, "Professor, is this a celebration wine?"

"Haha, the laboratory conditions are limited, if you have the opportunity to have another drink, come!" Zhuang Qianding laughed heartily when he heard the words, and held another water glass in his right hand, holding it up high.

There is no wine in the laboratory. If you want to drink, you have to go out to eat, there is no need.

"Congratulations on the successful development of the air separation plant." Yu Hua raised the water glass with his right hand.

The two water cups collided lightly, and the water in the cups reflected the faces of the two people, rippling slightly and rippling.

Clink glasses and drink.

Yu Hua took a sigh of relief, as did Zhuang Qianding.

Celebrate the moment with water instead of wine.

The time is fixed on July [-]th, a new but dark day is coming quietly.

On July 1937, 7, at 7:00 in the middle of the night, the design of the industrial-grade air separation plant assembly was completed, establishing the material basis for oxygen steelmaking in the iron and steel industry.

"Yu Hua, take a piece of paper, we will have a technical briefing." Professor Zhuang said to Yu Hua in a cheerful mood, putting down the water glass.

"Okay." Yu Hua nodded, found a blank scratch paper, and prepared to record.

"Now the design of the air separation plant assembly has been completed, but there are probably quite a few problems in the manufacturing process, which are mainly attributed to three categories: materials, processing equipment and skilled workers. You and I can be responsible for the workers, and the rest are materials and processing equipment. "Professor Zhuang thought deeply, made a systematic analysis, and said slowly.

After the design is completed, the next problem is how to manufacture the air separation plant assembly.

Manufacturing, this is not something that can be done in one sentence, and involves all aspects.

Yu Hua nodded in agreement and began to record the manufacturing issues.

"The first and second-stage centrifugal compressors, the second-stage fan compression structure, the rotor material and precision machining of the turbo-expander require high-strength steel and gantry milling. There is one in the gantry milling laboratory for the time being, but this is for the school. Resources cannot be moved to Yancheng, and there is no high-strength steel in the laboratory." Zhuang Qianding gave the first specific manufacturing difficulty.

"Yancheng currently has an electric arc furnace steelmaking process, which can produce electric furnace steel. The yield strength and tensile strength meet the needs of the rotor material. There is a lack of processing equipment, but the rotor can be processed by imitating the gantry milling." Yu Hua heard the words and nodded back. said.

For the high-strength steel required for the rotor material, the best and ideal target is high-strength electroslag steel, but the objective conditions are limited, and the electric furnace steel can only be used as the rotor material.

As for the processing equipment, Yu Hua can only use his own identity to give a route for the independent production of imitation machine tools, and temporarily cannot disclose things about German machine tools.

"Imitation of gantry milling... is indeed a feasible way, and only independent research and development can solve all problems." Zhuang Qianding thought about it, but did not find it difficult. He nodded and continued: "Second, the high-power DC motor The rotor material, silicon steel, this kind of high-end magnetic material, the laboratory also does not have, and the country is 100% dependent on imports, can the base be produced?"

"No." Yu Hua shook his head and replied, silicon steel material is one of the materials Yu Hua expects to solve, and the base area is temporarily unable to produce it.

Silicon steel, magnetic material, silicon content 1.0-4.5% coefficient range, carbon content less than 0.08% silicon alloy steel, with high permeability, low coercivity, high resistivity and other properties, this is the motor, transformer, electrical appliances and other properties. An indispensable magnetic material in electrical instruments.

It can be said that without silicon steel, the motor cannot be built.

This thing is an aristocrat among thousands of steel products. It is known as a steel art. The smelting process is very complicated, the production technology is extremely difficult, and the output is scarce.

The production of silicon steel involves many fields such as manufacturing technology, equipment, procedures and materials science. The world usually regards the output of silicon steel as an important indicator to measure the level of a country's special steel smelting. Similar to the top industrial countries such as the United States and Germany, the output of silicon steel can usually occupy the The total amount of steel is about 1.5%, generally 1% in Britain, France and Japan, and about 0.7% in the Soviet Union, which adopts the converter steelmaking process and the electric furnace steelmaking process.

"It seems that we have to think about the smelting process of silicon steel. In 34 years, cold-rolled oriented silicon steel appeared. This silicon steel shows a significant increase in magnetic properties along the rolling direction of the steel plate. It is very suitable for making motors and transformers, replacing hot-rolled silicon steel."

Hearing the expected answer, Zhuang Qianding was not discouraged, nodded and said, "At this stage, we will first obtain silicon steel from discarded motors, remelting and manufacturing, and in the future, we will engage in hot-rolled silicon steel and then cold-rolled silicon steel. Silicon steel, how do you feel about solving the problem of silicon steel production?"

"I agree."

Yu Hua nodded and recorded the solution.

Professor Zhuang's idea coincides with his original plan.

First, find the silicon steel sheets in the discarded motors to solve the problems that do not exist, and then pass the oxygen converter to solve the problems of silicon steel production.

It should be known that the oxygen converter process is the main method for producing silicon steel in later generations.

"Third, the aluminum plate-fin heat sinks and copper pipes of the condensing evaporator, the materials required for the internal and external circulation of the open cooling tower scheme... Are there any bases for these materials?" Zhuang Qianding asked.

Yu Hua responded: "Aluminum and copper can be refined through electrolysis."

"What about the power supply problem?"

Zhuang Qianding nodded, suddenly realizing the problem of energy supply, frowning slightly, and asked: "The electric arc furnace, electrolysis process, air separation equipment are running normally, imitation machine tools, all these do not leave the electricity."

The words fell, and a pair of eyes looked at Yu Hua.

Four eyes met, a faint embarrassing atmosphere pervaded.

"Are you going to tell me that we have to build a generator set, a thermal power generator set based on a steam turbine?" Zhuang Qianding said a little helplessly.

"Yes, Professor, I think we should develop a 5MW-class turbo-generator set, which can basically meet the power needs of air separation plants, electric arc furnaces, machining equipment and other equipment." Yu Hua blinked, the fact is just like Zhuang As mentioned by Qian Ding, in order to solve the power problem, it is necessary to develop a real generator set.

Electric arc furnaces, air separation equipment, machine tools, and future electroslag remelting furnaces are all electric tigers. Power generation equipment with a total power of no more than 100KW in the base area cannot do great things.

Modern industry is inseparable from electricity, which is a hard bone that must be gnawed.

"It's like saying that in order to build Taiwan's air separation equipment, we have to build an industrial base. That's probably what it means, right?" Zhuang Qianding laughed and joked when he heard this.

Now it is not the problem of manufacturing air separation equipment, but the problem of the entire industrial production system and industrial chain. Without an industrial production system as the backing, the blueprint of the air separation equipment assembly that has been designed and completed on the workbench cannot be changed from the blueprint to real.

Yu Hua's words revealed a hint of helplessness: "Yes, if we want to solve these problems once and for all, in fact, we need to establish the most basic industrial production system to realize the whole process of raw material mining, smelting and machining. With this industrial base, we Only the 105mm howitzer can be developed, and this is the reason why the students asked the professor to join, my strength is too meager."

To be honest, the basic conditions of this era are really bad.

In order to engage in weapons production in China, which has almost no industrial foundation, a basic industrial production system covering metallurgy, machinery, energy, and mining must be established.

"Okay, isn't it an industrial base? With you and me, it will be turned upside down! 5MW power is not enough, it is too small, if there is electric furnace steel, a single 10MW generator set can be built, and the installed capacity is 2 × 10MW thermal power plant, The base area is rich in coal resources, and there is no problem with the supply of raw materials.”

Hearing this, Zhuang Qianding revealed a hint of domineering in his eyes, and said loudly: "In this way, the long-term power supply problem can be solved."

A good man, facing difficulties, never afraid of difficulties.

Zhuang Qianding is not afraid of any difficulties.

Yu Hua was a little surprised: "10MW, professor, will it be a bit big?":
"It's not big, there is no problem with the theoretical design, don't forget, I used to work as a power engineer in the Edison Power Plant and the Chicago Power Plant, and participated in the design of 80MW and 100MW steam turbine generator sets." Zhuang Qianding smiled, and the words were full. Chic.

Yu Hua gave a thumbs up: "..."

Really big guy.

"Jane will stop here for the time being. The idea of ​​establishing an industrial base in the base area is not perfect for the time being. If there is a chance, I hope to talk to them. It doesn't make sense to rely on you and me to think about it here. We must obtain their support. "Zhuang Qianding raised his hand and looked at his watch. It was already 12:30 in the morning, then he stopped the technical briefing and said to Yu Hua.

"I will make arrangements as soon as possible." Yu Hua nodded and replied.

(End of this chapter)