my scientific age

Chapter 309 Manually Fixed Ammo!
"According to the arrangement of the superior, he will serve as the director of the Military Industry Bureau, responsible for the production and industrial development of the military industry. This is an expert leader, much stronger than me." Chen Kang smiled.

"I see." Yu Hua let out a sigh of relief and nodded back.

There is no doubt that the combination of Li Qiang + Zhuang Qianding + myself + Lin Wan's scientific research team will explode with unprecedented power, and when Fang Yu and Zhou Yuan return from their studies...

The base area is considered to have a real scientific research talent team.

"The last thing I want to ask you before I leave, when can we start making bullets?" Chen Kang thought about his words and said what he had always wanted to ask.

When can we start making bullets?
This 'made' is not a reloaded bullet today, but a serious fixed-loaded bullet!

Yu Hua understood the meaning of Chen Kang's words, pondered for a while, and said slowly: "Manufacturing bullets is a systematic project, from raw materials to finished products, involving hundreds of processes before and after, with the existing technology level of the base area, about two After half a month, we can meet the benchmark requirements for the production of fixed-load ammunition."

How many processes are there to manufacture a 7.92mm fixed-loading ammunition?
Warhead: brass quilt material production, stamping bottomed hollow parts, quilt covering, steel core material, steel core punching, steel core and quilt assembly, sealing paint, mold high-precision calibration and processing...

Shells: Brass raw material stamping, shearing, cleaning, drilling fire holes, moisture-proof paint, mold making...

Propellant: Single-base propellant or double-base propellant.

Primer: fire anvil, firing agent fulminate.

Bullet assembly: smearing seal paint on bullets and casings, applying moisture-proof paint on bullet casings and primers, efficient assembly equipment for bullets, weighing, quality inspection, and packaging.

This is the production process of a 7.92mm fixed-loading ammunition.

Each process has corresponding technical and equipment support behind it, and none of them are indispensable. Otherwise, bullets cannot be made.

And this is only to meet the benchmark requirements for the manufacture of fixed-load ammunition.

Being able to make bullets is one thing, and being able to make good bullets is another.

The production of bullets is much more difficult than the production of firearms. Without a basic industrial system covering chemical industry, steel, machining and energy supply, it is not realistic to manufacture bullets.

Today, the level of technology in the base area can only meet the benchmark requirements for the manufacture of propellants and primers, and the processing technology of warheads and cartridge cases is not enough.

Professional stamping machine tools, extension processing equipment, cartridge shearing machines, bullet assembly equipment... This is the necessary processing equipment for warheads and cartridge cases.

"Two and a half months...Fortunately, it's not too long. The main reason is that the troops are in short supply of ammunition, and the average person does not have more than 5 rounds of ammunition, so I have to ask you." Song, then explained, the words are full of helplessness.

Today, the ammunition of each unit is extremely scarce. The main force can reach 10 bullets per capita, the weaker troops have only 2 bullets per capita, and even some new troops have as low as 0.2 bullets per capita, and an average of 5 people get one bullet. .

You know, this is the total bullets per person, not the bullets per person that can be allocated per battle.

Not to mention rifles, nearly half of the soldiers had no guns and could only use broadswords and spears.

This is still the level at which weapons and ammunition purchased from the northern part are transported to the base area. If it is placed after the end of the Eastern Expedition and the Western Expedition, the level of ammunition reserves will have to be reduced by half.

"If this is the case, in order to slow down the urgent need, I actually have a way to make bullets now, using a fully manual method, using a lathe to process a batch of special metal rods for bullet casings to solve the production of bullet casings. The principle is similar to punching, using metal rods to align The raw material of the bullet case, one hammer can not be hammered until the shape of the bullet case is hammered. The steel core of the warhead is also processed with a lathe, while the brass quilt and the shell are made the same as the bullet case. Finally, the moisture-proof paint and sealing paint are applied by hand, and the Propellant and primer, complete bullet assembly."

Hearing these words, Yu Hua frowned slightly and almost forgot the situation the troops were facing now. After a brief ponder, the idea of ​​how to produce local ammunition for the Eighth Route Army came to mind when he was a military fan in his previous life. said slowly:
"Compared with large-scale industrial production, the technical requirements of this manual custom-loaded ammunition production method are almost zero. The advantage is that it allows troops or arsenals to manufacture urgently needed bullets. The disadvantages are obvious: First, the quality of bullets is unstable and prone to jamming problems. Second, there are certain requirements for workers' skills and equipment. After all, only workers with good skills can guarantee the quality, and simple lathes are required. Third, the production efficiency is low and the output is low. "

Bullet problem?

It doesn't matter, I'm also a Doraemon in the technical field now!
"How much can the production of this kind of manual fixed-loading ammunition produce per day?!" Hearing this plan thrown out by Yu Hua, Chen Kang was undoubtedly stunned. After half a second, the whole person suddenly reacted and quickly asked the most important The data.

The words express urgency.

Is the bullet quality unstable?
Can a bullet that is reloaded seven or eight times be unstable?
Are there certain requirements for workers' skills and equipment?
There is no shortage of soldiers from workers in the team. Listening to this situation, the equipment is nothing more than a lathe.

The only thing that Chen Kang cares about most is that the output in Yu Hua's mouth is low, what is the specific data!
"Aside from the supply of raw materials, a seven-person manual custom-loaded ammunition production line can produce about 100 to 300 rounds per day." Yu Hua gave the daily output data and smiled: "The base area can currently produce standard propellants and primers, copper and There is also steel, and the supply of raw materials is not a problem.”

Car steel core, hammer quilt, hammer shell, drilling fire hole, painting, loading propellant and primer, bullet assembly, these are the seven processes of the fully manual custom-loaded ammunition production line, and each process requires at least one person.

A single lathe and seven workers can meet the minimum requirements for manual cartridge production.

This method was inspired by Yu Hua when he was bragging with others on the post bar, based on the industrial production of bullets. The core idea is that you have industrialization, I have my handicraft, and as long as there are raw materials, I can make bullets.

Just right, the base area already has the ability to supply raw materials such as propellant, primer, copper, and steel.

For industrial countries, this method is thankless, but for today's base areas, for troops with about 5 bullets per capita...

What more bike do you want?

Anyway, in a word, first solve the problem of whether it is available, and then solve the problem of whether it is good or not.

"100 to 300 rounds, enough, completely enough, haha, this method is very suitable for us." Chen Kang's face showed joy, the sleepiness in his eyes dissipated again, and the joy in his heart couldn't be added. After a trip, Yu Hua found an effective solution to the production of bullets.

It is true that this manual production method of fixed-loading ammunition has low efficiency, low output, and unstable quality defects, which are completely incomparable with industrially produced standard bullets.

But so what?
What do these flaws affect?
In terms of defects, the army has used the most reloaded bullets for a long time, which has improved rifling wear, insufficient accuracy, low effective range, and insufficient lethality.

Compared with reloading bullets, the manual fixed-loading bullets proposed by Yu Hua are simply better and can't be better.

Marlene is on top, this is 100 to 300 rounds per day, take the highest number, it will be a full [-] rounds in a month, isn't it [-] rounded up?
Seven people + one lathe = 1 rounds of fixed-load ammunition per month.

And 10 people + [-] lathes = [-] rounds of fixed-load ammunition per month.

What is this concept?
Now that the Red Army has 8 people, 1.25 rounds of fixed ammunition per month means that the total amount of ammunition per capita in the troops will increase by [-] rounds per month.

To be honest, Chen Kang was so happy that he was about to cry, this is a real fixed-loaded ammo...

Not reloading bullets over and over again.

"Also, in order to adapt to the lack of electricity and improve portability, it is also possible to build a human-powered lathe, which uses a pedal structure similar to a sewing machine, and adds a flywheel to achieve purely human-powered production, so that it can move with the army, and the output of bullets may decrease. , but the scope of adaptation is improved, after all, most areas do not have the conditions for electricity supply."

Yu Hua thought for a while, and his high-speed brain immediately suggested an improvement plan. He smiled and said, "Just tell the professor about this method. The professor knows how to make this kind of lathe."

Sewing machine-like power structure + flywheel, the force of two people's feet is enough to meet the turning speed of the lathe. This special lathe for turning cores does not need to be built too large, as long as it can process cores with a diameter of several millimeters.

In this way, the weight of the lathe can be completely controlled within 50 kilograms. After being divided into various parts, it is carried by three soldiers and moves with the army, which is extremely suitable for guerrilla warfare and combat behind enemy lines.

As for raw materials, one is supplied by the base area, and the other is self-raised.

"Okay, very good. In this way, even a company-level unit can produce bullets and become self-sufficient. It is foreseeable that the plan you proposed will greatly ease the pressure on the troops' ammunition supply." Chen Kang heard Yu Hua's words. The imaginative but practical improvement plan was immediately moved and praised again and again. As a military supervisor from the army, he knew very well that the man-powered lathe proposed by Yu Hua was very practical.

Company-level troops can permanently set up a manual production line based on human-powered lathes, follow the army in wartime, and produce ammunition in spare time, which greatly relieves the pressure of ammunition supply in logistics.

"It's just a small thought before I leave. I'm glad that my knowledge and wisdom can help the soldiers, Director Chen, just come here, no need to send it." Yu Hua smiled, stood on the spot, and said to Chen Kang .

Before they knew it, the two had come to the entrance from the depths of Liushugou, and the Dodge truck was parked a few meters away.

"Mr. Yu Hua, take care all the way." Chen Kang took a deep breath, his brows narrowed, his face was solemn and solemn, his back was straight, and he gave the young Yu Hua a military salute and respectfully.

The word Mr. is by no means a compliment, but a respect.

In Chen Kang's mind, although Yu Hua is only in his early [-]th century, he can still be called Mr.

"Goodbye."

Yu Hua smiled, turned to face the Dodge truck, and then boarded the car accompanied by Lv Junyu and three security guards carrying radio stations.

In order to keep the communication smooth and safe, the Military Industry Bureau is specially equipped with a radio station, whether it is an information exchange or an emergency, it can be notified as soon as possible.

"Buzz!"

Accompanied by the sound of a car engine starting, the entire Dodge truck drove away from Liushugou and set foot on the road to Yulin in the early morning sun.

Belonging to the era of steelmaking in 1937, here we come.

What two stick skew rolling mills, what hand ball mills, what hand-loaded bullets, what manpower lathes, all are not as important as oxygen top blowing converters.

With steel, there is everything.

……

"Interesting, manual fixed-loading ammunition production lines, human-powered lathes, and the sword's slant, or this kid is doing it... In essence, this manual fixed-loading mode is an evolution of reloading bullets, but compared to reloading bullets, fixed-loading ammunition The accuracy and lethality of the ammunition are definitely better, but the same defects are very obvious, the quality is unstable, and the output is low. If you want to ensure the quality of the hand-loaded ammunition, the craftsmanship of the personnel is higher." Liushugou Arsenal Factory Office, is preparing to improve Zhuang Qianding, who designed the 10MW steam turbine, was amazed after listening to what Chen Kang explained, and the details of the production of hand-loaded ammunition already appeared in his mind.

With a hammer in one hand and an iron rod in the other, he smashed out bullet casings, jackets, and shells.

A lathe that pulls out the core.

To be fair, it was the first time that Zhuang Qianding discovered that the fixed-load ammunition could still be produced in this way. Yu Hua's wonderful idea really refreshed his cognition again.

interesting.

Really interesting.

Lin Wan was sitting in the office. She was full of surprises at Yu Hua's proposal for a manual custom-loaded ammunition. The difficulty of the army's inability to produce bullets was obvious to all. Who would have thought that it would take so long for Yu Hua to make a manual custom-loaded bullet and pop it out.

The important thing is that this is not gibberish, but extremely practical.

Today, this office and the surrounding area of ​​the arsenal department have been vacated for the use of the highest science and technology team, and the security work has been taken over by the headquarters guard regiment.

"Professor, can we make this kind of human-powered lathe?" Chen Kang nodded and asked.

"No problem, this is entirely a mechanical structure, and the human-powered lathe is not in a hurry for the time being. Let's go to the machining workshop first and process the three kinds of metal bars."

Zhuang Qianding nodded, and was very interested in the hand-loaded ammunition model proposed by Yu Hua: "Lin Wan, you are in charge of recording it. Don't worry about the cement production, get this done. Yu Hua, this kid, will also give it to Yulin before he goes to Yulin. I'm looking for something, I have a headache..."

The production of bullets is of great importance. It takes a little time to help organize troops to solve the problem of ammunition supply. Zhuang Qianding does not object.

It's just that this kid Yu Hua has too many ideas, from the two-stick skew rolling mill last night, to the conveyor belt equipment and hand-cranked ball mill in the middle of the night, and tossing this manual fixed-loading ammunition before leaving...

Forget it, it’s the same sentence, there is no need to worry about debts, and no itch for lice.

"Yes, professor." Lin Wan smiled. She was originally going to be in charge of the technical guidance of the cement vertical earth kiln next to the Liushugou Iron Works, but when she heard this temporary arrangement, she had to agree.

When the words are over, pick up a notebook and pencil.

The group left the office and went to the machining workshop of the arsenal. Zhuang Qianding, who already had a belly draft in his heart, quickly found three steel bars with a diameter of about ten millimeters, and then manipulated the lathe to process three plugs with different shapes and diameters of 7.92mm metal punch.

The top of the cartridge punch is bottle-shaped. This is because the 7.92mm round-head bullet of the Hanyang rifle uses a bottle-shaped cartridge. Generally speaking, the necking process is required, but with a bottle-shaped top, it can be punched in place in one step.

The head of the quilt punch is round, which is very simple, because the bullet is round. If it is a 7.92mm pointed bullet of a medium-sized rifle, it needs to be changed to a conical head.

The top of the primer punch is round, with a high circumference and a concave center. Once the hammer goes down, it can produce the effect of extrusion and cutting, and the primer shell can be punched out.

The surfaces of the three punches are smooth and silvery white like a work of art. Professor Zhuang made a base mold that matches the three punches.

This manual punching would not be possible without a matching base die.

After the base was finished, only the most important bullet core was missing. Professor Zhuang used a lathe to process five silvery steel cores.

Lin Wan stood quietly beside the lathe, constantly recording the entire processing process and related information.

"Brass plate, sealing paint, moisture-proof paint, as well as particle propellant and primer. Director Chen, please come and find it. I remember that there is a list of materials for the oxygen top blowing converter for the brass plate. Just one piece is enough." , Professor Zhuang said to Chen Kang, giving the required materials: "By the way, call some workers, and I will teach them how to get started."

"Okay, right now." Chen Kang nodded and hurriedly looked for materials.

The arsenal has been working on reloading bullets. These materials are basically complete. The only thing missing is the brass plate. Coincidentally, this thing is in the list of materials purchased for the oxygen top blowing converter project.

Imported brass plates, authentic American products.

After a while, Chen Kang and seven workers returned to the workshop and put down the materials one by one.

"I'll demonstrate it first, if you don't understand, ask again." Zhuang Qianding said to the surrounding workers, then picked up the brass plate, cut out a small copper plate with scissors, and placed it on the mold for the base of the cartridge case. He holds a hammer in his left hand and a stick in his right palm.

"Boom!" As soon as the hammer went down, the brass plate quickly deformed under the action of the punch and entered the groove of the base.

But a hammer is not enough.

"Boom boom boom!"

The sound of the hammer hitting the punch spread all around, and after a while, a brand-new cartridge with a bottle-like shape was released.

Seeing this scene, the expressions of the workers who were standing around suddenly changed, and they were all surprised and puzzled. What happened? After a few hammers, they made a cartridge case?
"This is a cartridge case punch, which is formed at one time with the base mold. Next is the manufacture of the quilt. Note that the quilt is very thin and requires much less material than the bullet casing. If it is cut too much, the thickness of the quilt will increase. It affects the performance of the bullet." Professor Zhuang explained the content carefully, and then used scissors to cut a smaller brass plate again.

This time, put it on top of the quilt base mold, and align the quilt punch.

"Boom!" The hammer slammed down and landed on the end of the punch, and the thin and small brass plate immediately sank into the base.

After seven or eight hammers, a new round brass quilt came into the sight of all the surrounding workers.

Unbelievable!

It's incredible!

Seeing this scene, the workers with rich experience in reloading bullets are not calm, with a ghostly expression, bottle-shaped bullet casings formed in a few hammers, round quilts formed in a few hammers...

You must know that the manufacturing difficulty of bullet casings and jackets belongs to the first echelon in the bullet production process, second only to the bottom fire seat.

The man in front of him, whom the head of his family respects and is unfamiliar with, managed to do it with just a few hammers!
God, do you want to exaggerate?
Chen Kang saw the brand-new quilt, and then looked at the cartridge case, his eyes were full of joy, although the labor efficiency was very low, but it was really able to create a custom-loaded cartridge.

"The top of the quilt punch is round, and it can only punch the round-headed bullet quilt made by Hanyang, not the official pointed bullet quilt. You need to pay attention to this, and then the primer is punched, or the primer is used. , try to be as strong as possible, punch it at one time, and finally trim the edges." Then, Zhuang Qianding finally used a primer punch to punch out a primer seat with average accuracy, while explaining and demonstrating: "Do you understand?"

"Understood." The worker standing at the nearest position on the operating table nodded quickly and replied. At this moment, he already understood what Zhuang Qianding was doing and what they were about to do.

Make bullets!
Build real bullets, not reloads!
At this moment, although he does not know Zhuang Qianding's name and identity, the worker respects Zhuang Qianding from the bottom of his heart.

"With the cartridge case, jacket, primer seat, and the cartridge core, it is a bullet. Next, we assemble the bullet. Remember, the sealing paint is applied to the connection between the warhead and the cartridge case, and the moisture-proof paint is applied to the connection between the primer and the cartridge case. Ministry, don't mix it up." Zhuang Qianding turned to look at everyone, explained the knowledge seriously, and then demonstrated the assembly of bullets under the watchful eyes of everyone.

Wrap the bullet core with armor, apply moisture-proof paint, install the primer base, load the primer, apply sealant, and load the single-base propellant. There is no difference between reloading bullets, but the difference is that this is a serious fixed-loading bullet.

Soon, a 7.92mm round-head bomb was assembled, and the first fixed-load bomb in the history of the base was born.

"Xiao Lin, how long did it take?" After loading the bullet, Zhuang Qianding relaxed slightly and looked at Lin Wan beside him.

"A total of 6 minutes." Lin Wan responded.

"About 24 rounds in 240 hours. If it takes 5 minutes, basically 300 rounds of ammunition can be produced a day." Zhuang Qianding simply calculated the data, nodded affirmatively, looked at the workers around him, and said seriously: "What's the matter?" Due to the principle of confidentiality, I cannot disclose my identity information to everyone, but you can try to produce bullets now, just ask if you don’t understand, and I will try my best to answer.”

"Sir, why is it so accurate that you can get a bullet casing out after a few hammers?" The middle-aged worker, about 40 years old, asked respectfully.

Zhuang Qianding replied: "This is a kind of stamping process. Look carefully at the top of the punch and the base mold. As long as you apply pressure, the top can press down the brass plate, and cooperate with the mold to create a cartridge case. That's it."

"It turned out to be like this... I understand." The middle-aged worker heard the words, and immediately checked the punch and base mold carefully. Although he didn't understand what the stamping process was, he could understand its meaning and principle.

Another worker with a beard asked: "Sir, what about the bullet core?"

"It is very simple to process with a lathe, and it is easy to get started." Zhuang Qianding said.

lathe?

The surrounding workers suddenly realized.

"Do you have any questions?" Seeing that no one asked any more questions, Zhuang Qianding looked at everyone with his eyes.

A group of workers shook their heads one after another. They were just surprised that a few hammers went down to make a standard cartridge case. As for the production process, they said they had understood it.

In a word, swing a hammer and a car bullet.

These they will.

"Then everyone will try to produce bullets first, and those who know how to turn lathes will come to car cores." Zhuang Qianding immediately gave instructions.

If you want to teach, then teach well, let the workers learn to master the skills first.

(End of this chapter)