my scientific age

Chapter 331 Tilt Armor!

The heat wave in the workshop was surging, with an average temperature of [-] degrees Celsius. This was due to the accumulation of heat released by the continuous operation of the test furnace and the pouring operation. The internal environment was as harsh and cruel as a steamer, and the soldiers and workers in it were all sweaty.

But no one has cried out bitterness or tiredness, all of them silently stick to their posts and do what they should do.

Persistence is victory!

"Om!" The sound of the [-]-level air separation equipment and the operation of the oxygen lance complemented each other, playing a familiar and rhythmic steel-making symphony. The supersonic oxygen jet was divided into three strands and continuously impacted the molten pool of the test furnace below, causing the high-temperature molten iron to surge and circulate. , to melt various elements contained in molten iron.

"High-gun slag." In the main control room, Yu Hua, who had been simmering all day and night, was covered in fine sweat. He stared at the test furnace in the tempering state, and gave the slag-melting command to the oxygen lance operator.

Now, the test furnace is filled with the last batch of molten iron. If nothing else, this will be the last batch of molten steel in this trial production, and its success will determine the final production record.

In the past 23 hours, the test furnace has successfully blown 46 furnaces of molten steel, with an output of 92.6 tons, and the ratio of the designed output to the actual output was about 96.4%.

If this furnace of molten steel is successful, the actual output ratio will reach 98%!

At this time, the atmosphere was tense and solemn.

The commander of the engineering team, Yang Zhi, and the relevant personnel of the Public Works Department stayed in the main control room, holding their breaths and keeping an eye on the blowing conditions of the test furnace. Although they couldn't understand it at all, it didn't hinder anything.

The oxygen lance operator carried out the operation in an orderly manner. The oxygen lance supplied oxygen to blow molten iron, so that the limestone and fluxing agent quickly slag. After a while, the initial time of the test furnace blowing by the single-slag method was up, and then Yu Hua ordered again, the oxygen lance Down to the height of the gun, enter the stage of rapid decarbonization.

3 minutes.

5 minutes.

8 minutes.

The molten iron in the molten pool of the test furnace accelerated to [-] degrees Celsius, the carbon content is reduced at a rate visible to the naked eye, and changes from physical properties to molten steel.

When the lance reaches the expected decarburization time, the oxygen lance returns to the initial position, the oxygen supply is terminated, and the air separation equipment is shut down.

At the same time, the base of the converter is tilted at an angle, the furnace body is slowly inclined, and the tap hole is aligned with the ladle with silicon-manganese and deoxidizer directly below.

The bright yellow high-temperature molten steel rushed out like the waves of the Yangtze River and poured into the ladle.

In an instant, the high-temperature heat wave swept around like a shock wave, and the silicon-manganese element quickly melted and reacted in contact with the molten steel, changing the composition of the molten steel, and the deoxidizer quickly reduced the oxygen content in the molten steel.

This is a furnace of high-carbon steel with a carbon content of about 0.8%. It is converted into high-quality alloy silicon-manganese spring steel by adding silicon-manganese elements to improve the composition. It is suitable for springs and leaf springs that bear high loads. The objects are Red Star tractors and traction artillery. .

The demand for spring steel is not large, but the technical requirements are high. If the performance of the spring steel is not up to standard, the Red Star tractor cannot withstand the load caused by the ten-ton overload, and the same is true for the 105mm howitzer towing device.

One furnace of silicon-manganese spring steel is enough for eight Red Star tractors, or fifteen 105mm howitzers.

With 5 minutes left in the time, as the height of the molten pool of the test furnace dropped to the warning position, two furnace workers familiarized themselves with the operation of the slag ball delivery device and sent the slag blocking ball into the furnace body.

The slag ball delivery device has a simple structure, the head is spoon-shaped, about four meters long, and the middle is connected to an electric hoist. It is made based on the principle of leverage and is mainly operated by manpower.

Slag blocking, skimming, pouring.

The high-temperature molten steel, which is the core of the audience, poured out steadily, poured all of it into square molds, and cast it into steel ingots.

With the completion of the pouring operation, the smelting of the last batch of molten steel in the first trial production was completed.

Everything, dust settled.

Now, all that needs to be done is to wait for the molten steel to cool and form, after accurate weighing, to obtain the final actual daily output data.

The actual weight of each heat of molten steel is not the same, there are errors, some are heavy, some are light, the error is about 1%-3%, and the reason for the actual weight error is very simple, it is impossible to accurately control the amount of molten iron charged.

The factory fell into silence, full of anticipation. The workers and soldiers of all production units in the Sanchawan factory were all silently waiting for the final result. Everyone's mood was full of hope.

As time passed, the second and minute hands of the watch returned to zero at the same time, and the time was fixed at 11:00 in the morning. The furnace of silicon-manganese spring steel had cooled for more than 10 minutes and had already crystallized.

"Collect the weight parameters of molten steel for the 47th heat." In the main control room, Yu Hua stood upright like a majestic mountain at the front. The golden mathematical symbols released a steady stream of coldness, dispelling the fatigue caused by high-intensity work. The watch gets the time and then gives the order.

In an instant, the chief dispatcher waved the flag and conveyed instructions to the production team in the pouring area.

The pouring production team was busy non-stop, carried out demoulding operations, opened the mold and took out the red square ingots one by one, weighed and recorded the data in turn, and finally the team leader personally sent it to the main control room and handed it over to Yu Hua.

Yu Hua took over the information on the weight parameters of the No.40 furnace No. 47, extracted all the above weighing data and calculated it, and obtained the actual weight of the No. [-] furnace molten steel.

The actual weight of molten steel in the 47th heat of trial production in the test furnace: 2.05 tons.

Immediately afterwards, Yu Hua performed a comprehensive calculation on the actual weight data of the 47th batch of molten steel and the actual weight data of the 23 batches of molten steel in the past 46 hours, and obtained data such as hourly production data and 24-hour production change curves, and obtained a simple and intuitive data Visualization sketches.

In the main control room, Yang Zhi, comrades from the public works department, comrades from the security department, and security guard Lv Junyu were extremely nervous. They stared at Yu Hua who was writing, knowing that the final result was about to be announced.

Two minutes later, Yu Hua stopped writing, picked up the report recording the 2-hour steel production data, and faced Yang Zhi and the others with a faint smile on his face.

"The trial production data of the oxygen top-blown converter project are as follows: the actual output of steel in 24 hours is 94.65 tons, the average output of a single furnace is 2.01 tons, and the output per hour is 3.94 tons, which is 98.5% of the designed output. For carbon steel, high carbon steel, chrome-nickel-molybdenum alloy stainless steel, silicon-manganese spring steel, and silicon steel, the actual daily output and steel types have met the requirements of the trial production index, and there is no error in personnel operation. It is allowed to pass the acceptance and enter the industrial production stage."

"Everyone, the steel age that belongs to China has come."

The final results of the trial production were announced. From this moment on, the field of iron and steel metallurgy entered a new era. The base in the industrial desert surpassed the whole world and entered the era of oxygen steelmaking in one fell swoop.

This is... a steel age that belongs exclusively to China.

Time freezes, history freezes.

boom!
In a short while, after a brief shock in the factory building, it suddenly fell into a sensation. Everyone burst into tears, was extremely excited, and cheered to express their inner emotions.

done!
They have always been discriminated against and humiliated by various countries!
What is an industrial desert?

The whole of China is an industrial desert on the earth. It has a land area of ​​more than 1000 million square kilometers, but there is no real industrial system. Not only can it not produce various machinery and equipment, but even steel cannot achieve an annual output of [-] tons.

In a country of more than 1000 million square kilometers, the annual output of steel is only [-] tons. This is a complete industrial desert!

Chinese people have always been looked down upon by others, and regarded by Westerners as the sick man of East Asia who always wears a whip!
However, today is different, and from this moment on, they have successfully mastered the epoch-making iron and steel metallurgy technology through unremitting efforts and dedication.

If the first atomic bomb bred by the Manhattan Project is called 'skinny', and the nuclear physics is divided into two sections, then the importance of oxygen top-blowing converter technology is equivalent to the 'skinny' in the field of metallurgy.

The history of the iron and steel metallurgy industry is divided into two sections.

1937年8月4日上午11:05分，氧气顶吹转炉试生产成功，这项划时代冶金技术由试验性质迈向工业生产。

A human cutting-edge metallurgical technology was quietly born.

The whole news swept through the factory like a hurricane, and then spread all over Sancha Bay in an instant. The more than [-] officers and fighters of the First Red Division who fought for dozens of days and nights were extremely excited, and the workers affiliated to the Military Industry Bureau were even more excited. .

They are happy, they are excited, they cry.

No one understands the meaning of oxygen-blown furnace technology better than these military workers.

The foundation of the world is completed today!
"After half a year, the original idea finally succeeded. With this dragon slaying technique, I believe that the organization will be much better than the original history. Now there are about three months before the start of school, and then the electroslag remelting and 105 The millimeter howitzer is done." Yu Hua looked at the cheering and excited scene of the workers and soldiers in the factory, with a happy smile on his face, thinking silently in his mind.

Passing the trial production means that the oxygen blowing furnace technology has been successfully developed in a real sense, but this is not enough. If the 105mm howitzer is to be developed, the pre-technology of electroslag remelting technology must be lit.

Fortunately, whether it is a 105mm howitzer or electroslag remelting technology, Yu Hua has all carefully understood it.

No way, the former is the first 360mm howitzer with a 105° firing angle in history, and the latter is the three famous advanced metallurgical processes.

As a hardcore military fan, if you don't understand these military technologies, would you be embarrassed to claim the hardcore title?

The air separation equipment lays the oxygen supply foundation for the oxygen blowing furnace, the oxygen blowing furnace lays the high-quality raw material supply foundation for the electroslag remelting, and the electroslag remelting lays the material foundation for the large-caliber artillery gun steel. The development of the technical field is like this. Links are linked, no one can do it without it, and it is impossible to be too ambitious, open your mouth to overtake a corner.

Some roads have no bends.

"Director Yang, send a happy message to the headquarters." Yu Hua looked at the emotional Yang Zhi beside him and smiled.

"Yes, chief engineer!" Yang Zhi heard the words, immediately reacted, and hurriedly turned and left.

"Comrade Tao, the trial production has passed. I will return to Yancheng to handle the work immediately. Yulin Iron and Steel Plant will give it to you."

After Yang Zhi left, Yu Hua turned to look at Tao Mingda, the newly appointed head of the Yulin Iron and Steel Plant next to him, and said: "Steel production is not a trivial matter. After you take over, you should not be in a hurry to increase production in the early stage. You should focus on quality. It is the lack of transportation capacity and the substandard supporting facilities. Second, oxygen steelmaking is too advanced and high-end for the organization. It is easy to cause problems if you are eager to pursue production. You should be familiar with the oxygen blowing process, master the essentials, accumulate rich steelmaking experience, and then pursue Yield."

"With regard to the steelmaking production process, workers must be strictly required to abide by the "Oxygen Blowing Production Management Regulations", and quality is the first priority."

Quality First!

This is the most important thing.

Although the oxygen blowing furnace is successful, it does not mean that the Military Industry Bureau can play well. From a realistic point of view, it is difficult to understand such cutting-edge metallurgical process equipment without a year of effort.

Problems can easily arise if there is a rush to pursue production.

This is what Yu Hua does not want to see.

"Yes, you must abide by the rules and regulations!" Tao Mingda's face was serious, his eyes showed respect, he nodded, and replied with a straight voice.

For Yu Hua, the creator of the oxygen blow furnace, he is full of respect, even though Yu Hua is ten years younger than him.

Yulin Iron and Steel Plant can do without him Tao Mingda, without its own leader Chen Kang, without Yang Zhi of the engineering team, but definitely not without Yu Hua.

It can be said unceremoniously - without Yu Hua, there would be no oxygen furnace.

Tao Mingda is an old man in the Guantian Arsenal period. He once served as the director of the miscellaneous equipment factory. He graduated from Suzhou Suzhou Middle School in Jiangsu Province with a high school education. He has a good knowledge reserve and cultural foundation.

They were still studying at the Anti-Japanese University, but Chen Kang sent Tao Mingda from the Anti-Japanese University to serve as the director of the Yulin Iron and Steel Plant.

No matter where the diploma from the high school granted by the Republic of China is placed, it belongs to the senior intellectuals, which are rare senior talents in the organization team.

"In addition, I would like to give credit to three comrades Sun Hong from the hoisting team, Wang Qiang and Luo Hongtao from the furnace front team. Sun Hong performed well during the first smelting test and trial production, and completed every hoisting job with zero mistakes. Rewards should be given, Wang Qiang and Luo Hongtao risking their lives to work to ensure the smelting of molten steel should be rewarded."

Yu Hua changed the subject and continued: "This application is in my name, through the channel of the steel factory reporting to the Military Industry Bureau."

Please do it in the name of the chief engineer!

Sun Hong, a crane worker, Wang Qiang, and Luo Hongtao, a furnace worker, who performed well during the first smelting time and during the trial production period. Yu Hua, who saw the dedication and hard work of the three, should be rewarded.

"Please? Okay, I understand." Tao Mingda was stunned when he heard the words, a little surprised, and nodded quickly.

I have to say that the three comrades Sun Hong, Wang Qiang and Luo Hongtao are really lucky.

After talking about the application for credit, Yu Hua finally said: "If there is a technical problem in the steel production process, try to solve the small things yourself, and give me power for the big things, but the technicians have to think hard. Well, that's basically what I want to say, Comrade Tao. , do you have any questions?"

"Chief engineer, can we hold the celebration banquet for the oxygen blowing furnace?" Tao Mingda asked.

"Let's go, let the soldiers and every worker involved in the construction of the steel plant participate, let everyone relax, I will not participate." Yu Hua smiled and said, "Are there any questions?"

He didn't have time to participate in the celebration banquet, the oxygen blowing furnace was done, and the Red Star tractor project was still waiting for him to fight the fire. This was urgent and could not be delayed.

The problem of insufficient transportation capacity has fundamentally restricted the industrial development and production in the base area. As far as the transportation capacity quota allocated by Yulin Iron and Steel Plant is concerned, it can produce up to five tons of steel per day.

Yes, only five tons, because one ton of steel requires four tons of raw materials, and the Yulin Steel Plant has a capacity quota of twenty tons.

This is the limitation of objective conditions, and the short board problem faced in the industrial construction of the Military Industry Bureau.

Tao Mingda shook his head.

"Comrade Tao, goodbye then." Yu Hua said goodbye with a smile.

"Chief engineer, goodbye." Tao Mingda raised his hand to salute.

Yu Hua smiled and said nothing. He quietly left the busy workshop and handed over everything here to Tao Mingda.

This is not something he should worry about about the upcoming phase of large-scale industrial production.

Again, only engage in technology and never interfere with any arrangements of the organization.

Yu Hua is unwilling to interfere and cannot interfere, he does not want to devote limited energy and time to these aspects.

Near noon, the sky is blue and cloudless.

The sunlight hanging on the top of the sky is extraordinarily bright, casting the light of hope on this land.

Bathed in the sun, with a smile, Yu Hua once again set foot on the road back to Yancheng, lying leisurely in the straw-covered truck box, and fell asleep comfortably.

I haven't rested for nearly [-] hours, and my body has already reached its limit.

This sleep, Yu Hua slept very comfortably.

The first big goal I set at the beginning was gradually realized with my own efforts step by step. The sense of achievement at this level has far surpassed any previous experience or the feeling of pretending to be forced.

Oxygen top-blown converter technology in 1937...

……

On the outskirts of Berlin, the tank proving ground of the Army Weapons Department.

The scorching sun was in the sky, the temperature was hot, and the heat wave was rolling and twisting on the Yinyin lawn. On both sides of the test site stood a tall soldier in a standard German uniform, with a standard military posture, carrying a Mauser 98K rifle, wearing an M35 steel helmet, eyes Constantly scan your surroundings back and forth, staying on high alert.

The Berlin Tank Proving Ground is the main site for the Army Weapons Agency to develop and test tanks. The No. [-], No. [-], and No. [-] tanks, including the No. [-] tank under development, have all been tested here.

Today, the tank proving ground welcomed an unusual 'guest'.

In the center of the test field, a tank, no, to be precise, the body of a tank, quietly parked in the center of the armored test area, without artillery, without turret, or even without a tank engine and transmission system.

This is a shell.

But this shell revealed an unusual aura.

Because the frontal armor of the tank body is not a vertical design, but a [-]-degree inclination angle to the normal!
An unknown new type of tank body protection test is about to begin.

"Herman, what do you think of Henschel's 35-ton tank plan?" Guderian, who exudes elegance like an aristocrat, stood in the observation area of ​​the test site, holding high-power optical binoculars in both hands, and looked at the tank. Looking at the 1000-ton tank body 35 meters away, I asked Herman, the commander of the test site beside me.

"General, I can't make any comments, because the design of the frontal armor of this tank is completely beyond my imagination. I never thought that the concept of inclined armor used by naval battleships could be applied to tanks. In fact, If I hadn't seen it with my own eyes today, I still don't know the concept of inclined armor." Colonel Hermann shook his head and replied, looking at the tank body at the kilometer test point in the armored test area of ​​the proving ground, full of amazement.

"Not only that, this new tank also uses our newly developed Y-type armor steel. If nothing else, there may be a very big surprise today." Guderian smiled.

PS: I’m sorry, I’m sorry, there are things in real life that have been delayed these few days. I went to the hospital for an examination because of severe waist pain. I listened to the doctor’s words and rested for a while. I’m much better today.

(End of this chapter)