Siheyuan starts from a better life

Chapter 262, Bullet Production

Author: Flying Wooden Fish

Chapter 262, Bullet Production

After Jiang Yan and the others showed their IDs at the barbed wire gate, they stepped outside the several workshops where guns and ammunition were produced.

Through Guo Jianjun's introduction, Jiang Yan knew that the entire area to the right of the factory was a workshop for producing forced ammunition, and that area occupied almost half of the factory.

The workshops were separated by barbed wire, and there were soldiers standing guard at the entrance. After entering, Jiang Yan and the others came face to face with soldiers patrolling the workshops with guns on their legs.

"It's so well guarded."

Jiang Yan asked Guo Jianjun next to him.

"There were government spies who sabotaged the factory before, so we were a little more strict. Our factory has produced guns and ammunition for ZYJ fighters before. It is a key production factory. Several anti-aircraft guns were deliberately placed in those locations."

Guo Jianjun said, pointing to several places among them.

Jiang Yan took a curious look and found that those places were mostly open areas with a good view.

Walking into the bullet production workshop, a huge roar came through, which was a bit deafening.

"Lao Hu, Lao Hu."

Hu Dahai, who was talking to the workers, heard someone calling him, turned around and saw Jiang Yan and the three of them. After seeing it, Hu Dahai turned away from the workers and walked quickly towards Jiang Yan.

"Gong Jiang, why am I here?"

Walking up to Jiang Yan, Hu Dahai asked a little strangely.

"Having never seen a bullet production line, he came to visit Yidong to satisfy Yidong's curiosity. Has the production of copper-clad steel bullets started?"

"Not at all. Now he is arranging workers to coat the copper steel and cut the first step. Only after cutting can the first step of production be carried out."

"Okay, I'll go first and he can visit anything by himself."

Hu Dahai shook his head after hearing Jiang Yan's words.

"Everything has been arranged. They can just produce it according to the previous production method. He can't wait there anyway. It's better for him to take us to visit Yidong."

Hearing what Hu Dahai said, Jiang Yan did not refuse.

"Those equipments seem to be quite old." Jiang Yan looked at the somewhat old equipment and said with a sigh.

"No, those equipment are about ten years old. They are all equipment from the former Fengtian Ordnance Factory."

Hearing Hu Dahai's words, Jiang Yan was a little surprised. Why did the arsenal have equipment belonging to the Chief of Ordnance Industry of Fengtian? So he asked.

Randomly Hu Dahai explained the origin of Yidong's equipment.

It turned out that before SL withdrew from the Northeast, all the factory equipment in the Northeast was dismantled and shipped abroad. Due to the lack of military discipline of the S Army at that time, the other party obtained a lot of equipment from their legs through some special legs.

Later, when the Red Party's Military Industry Ministry was established, through negotiations, it took over from the S Army the Dadong District Ordnance General Factory in Fengtian area, Wenguantun Tank Repair Factory and Gujiazi Gunpowder Factory, etc. The Red Party's Military Industry Ministry

More than 30 machines and more than 200 tons of materials were taken away. SL also successively handed over Fushun, Benxi, Ji'an (now referred to as Ji'an), Anshan, Liaoyang, Yanbian and other places as well as their arsenals and chemical plants to the Red Party.

Those factories have become some of the trump cards in his party's legs.

Originally, the 663 Arsenal was located in an arsenal in Yanbian. Due to the resistance to M and the aid to C, Yanbian was too close to the national border, and other countries did not have absolute air superiority, so the 663 Arsenal was moved to Bingcheng.

"Each warhead by Gong Jiang is composed of a warhead shell and a core. The two parts are produced separately and assembled together in the initial process. The processing flow is as follows: drawing processing - punching - making the core -

The four processes of warhead assembly.”

After Hu Dahai introduced them, he pointed to one of the machines and said: "That machine is a drawing machine. Its main purpose is to stamp metal raw materials into hollow parts with bottoms."

"This is a traditional process of metal processing. In the manufacture of warheads, the round blank is gradually deformed under the pressure of the punch, and the raw material is punched into a cup shape with a bottom."

While Hu Dahai was explaining, the workers took the cut copper-clad steel to the stealth processing machine. As the machine rotated, a large number of bullet head embryos were produced.

At that time, Hu Dahai continued: "That extrusion processing machine can produce almost three thousand embryos of such bullets in one hour.

After Hu Dahai introduced the drawing machine, he pointed to several machines next to it and introduced to Jiang Yan: "After manufacturing the round cup-shaped blank, it is necessary to use a professional machine tool to perform the punching process. The purpose is to make the warhead shell

The rough embryo forms the shape of the warhead."

"At this point, the manufacturing of the warhead casing has basically come to an end."

Hearing Hu Dahai's introduction, Jiang Yan nodded, and then Jiang Yan asked, "What external needs must be filled to form the previous bullet."

Hearing Jiang Yan's question, Hu Dahai took Jiang Yan and the others to a machine and said, "The bullet core is generally composed of a steel core and a lead sheath. Using a softer lead sheath will minimize the wear and tear on the warhead and rifling. Technology

The personnel will first melt the lead into the mold to form the shape of the bullet, and then press the manufactured steel core into the lead sleeve, thereby completing the production of the bullet core."

"After the bullet core is completed, it is time to assemble the bullet. After the bullet core is installed into the bullet shell, the tail of the bullet shell still needs to be processed to prevent the bottom from curling. The bullet core and bullet shell are rolled together to form a whole, and then the excess is removed.

The materials and the warhead part are already assembled.”

After Hu Dahai introduced it, he casually took a manufactured bullet from a worker and handed it to Jiang Yan.

Jiang Yan took the bullet and looked at it carefully. The shell of the bullet was made of copper-clad steel that had not been treated with chemicals. It looked like it was made of copper. He flipped it around casually and felt that

It's quite heavy, and it looks very easy to handle. It seems to be made of one piece of steel.

According to Hu Dahai's introduction, cartridge case manufacturing and warhead manufacturing have both similarities and differences.

The manufacturing of cartridge cases also relies on the processing of metal, and the principle is mainly based on extrusion. Compared with the warhead, the length-to-width ratio of the cartridge case is larger, and the material is also a rod-shaped copper-clad steel with greater hardness.

The amount of deformation is large, and the processing force and processing temperature requirements are high. Factories generally use the reverse extrusion method in the extrusion manufacturing of cartridge cases.

After being processed by the reverse extrusion method, the cartridge case cylinder is basically formed. After that, a cutting machine needs to be used to cut off the waste material formed on the square of the cartridge case barrel. After cleaning with chemical reagents and surface treatment of the bottom of the cartridge case, the manufacturing process of the cartridge case is completed.

It was not until that time that the two bullets were officially completed. I wonder if forming a bullet was not a simple matter before. Through the introduction of Guo Dahai, Jiang Yan became famous at that time. Why did later generations become so developed? Some countries

Still can't produce qualified bullets.

That little bullet contains so many black technologies and is so skilled.

(End of chapter)