Bright Sword: Construction starts from southeastern Shanxi

After adding up the various processes, Zeng Jiwen calculated the cost and suddenly felt that it would be better to buy copper.

Seeing the cost, Zeng Jiwen turned his attention to the painting process.

The only difference from copper cladding is that alloy steel does not need to be added, but high-quality electric furnace carbon steel needs to be processed.

The high-quality electric furnace carbon steel is then processed into long, slender steel bars, which requires the participation of extremely precise electric rolling mills.

After that, the punch press is used to cold-shear the bar into small cylindrical blanks, and then the two ends are flattened and the small cylindrical blanks are annealed.

After the blank is phosphated and saponified, it is extruded into a closed mold and processed into a steel bowl through an extrusion process.

Finally, the steel bowl is processed into a cartridge case and then electrophoretically painted.

As for the painting process, apart from the North, only the mustache in the original time and space also did it in the later period, but during this period, it was basically kept secret.

Fortunately, Yuan Zi and others solved this problem shortly after the outbreak of the Anti-Japanese War.

However, carbon steel also costs six hundred dollars per ton, and steel cartridge cases have some disadvantages. Not only can they not be reloaded, they also wear out the barrel of the gun, and are prone to rust in a humid environment.

And there is also a huge waste of resources.

Using copper bullets, they can basically be reloaded five or six times. Even if they cannot be reloaded, they can be recycled and re-refined.

But steel shells are not acceptable. Steel shells have impurities such as copper coating or paint and cannot be recycled for steelmaking. The steel shells that are picked up can only be recycled and treated as waste.

But copper can be recycled and melted for reuse anyway.

At that time, Zeng Jiwen was immediately conflicted about whether to use painted steel shells or copper shells for bullets. Finally, he thought about it and decided that if he really couldn't do it, it would be a waste of steel because copper was in short supply.

Finally, I pieced together the whole process.

Fortunately, all the previous efforts were not in vain.

The preparations in Tainan and Northwest gave Zeng Jiwen the confidence to start a large-scale replacement of the troops.

As for the steel cartridge cases, it doesn't matter if they are wasted. At worst, they can be recycled and used as other industrial products.

After solving the manufacturing problems of equipment and raw materials required for conventional weapons and equipment, what remains is artillery.

Zeng Jiwen's plan is to deploy 107 rocket launchers on a large scale.

Previously, due to material limitations, whether it was rocket shells, propellants, or explosives, they were all assembled and produced in small batches at the Taihang Military Factory from laboratories in the rear.

But after a few months, through technology exchanges with the north, Zeng Jiwen was able to carry out large-scale production in the northwest and began to equip the troops.

After all, North Face was also starting to design and develop this thing at this time, so there was nothing secretive about it for North Face.

Therefore, Zeng Jiwen planned to establish an independent rocket artillery battalion in each column, equipped with 12-18 rocket launchers.

In addition, each column also has an artillery regiment, which includes a cannon battalion with 12 122mm cannons, a howitzer battalion with 12 122mm howitzers, and a mortar battalion with 18 120mm mortars.

而普通步兵团的话则是下辖一个炮兵连，包含一个迫击炮排6-8门82毫米迫击炮，和反坦克炮排4-6门57毫米反坦克炮。

营一级则是一个营炮兵排4-6门82毫米迫击炮，步兵连则是2-3门60毫米迫击炮，40mm火箭筒则下放到班排。

Zeng Jiwen included the equipment production line needed for these artillery pieces in the equipment support list he requested from Moror.

As for the initial equipment, Zeng Jiwen plans to purchase it with additional funds.

In order to gather enough equipment and funds, Zeng Jiwen had planned to reveal the news about penicillin in the Lanzhou laboratory to Molor when he followed him to Tainan.

You should know that this drug will not be used clinically until next year across the ocean, and the cost of 100 mg is several hundred dollars.

In 43, the cost per million units was also $20.

It wasn't until 45 that the price per million units dropped to $0.55.

One million units is approximately 625 mg, which can save five soldiers. According to the measurement produced in the laboratory, one dose is roughly this amount.

Thanks to Zeng Jiwen's influence, the cost of the rear-end has now dropped to less than one dollar per piece.

However, Zeng Jiwen did not plan to sell it at a high price, so he just sold it at US$1200 per piece, which was lower than the cost of the laboratory opposite.

Zeng Jiwen felt that this price was very conscientious and fair.

Just consider it charity.

You know, the cost of one like this in the laboratory is more than a thousand dollars, and there is no one cheaper than what he sells.