Daming: I help my wife be the empress

Chapter 170 Modern Drill Bits, Late Ming Barrels

After ordering to send troops to assist in the investigation of the iron mine and the iron factory, Zhu Wei asked again: "Where is Sun Kewang now? Has the messenger caught up with him yet?"

The red lady said: "According to the scouts' investigation, he had been in Chengdu for a couple of days before leaving Xidaying, but he withdrew east with his troops after receiving the letter from the courier.

According to their marching speed, today they should have reached Jianzhou, which is more than 100 miles away.

In addition, he also gathered nearly [-] Daxi Army who fled that night, and currently has [-] to [-] troops. "

Aimee Zhu was silent for a while after listening.

Before Sun Kewang received Li Dingguo's personal letter, he had doubts in his heart, and it was understandable to watch from dozens of miles away in Chengdu.

But when he received the letter, knowing that the three of Li Dingguo had surrendered and that even Zhang Xianzhong was in the hands of Aunt Zhu, he still refused to surrender and instead led the team eastward. His thinking was very intriguing.

At this time, the red lady said again: "I think this Sun Kewang doesn't know how to flatter him, and at this point, he still wants to fight against the Jian Guofu.

Don't worry, Jian Guo, as long as the army is reorganized, we can lead the army to defeat him. "

Auntie Zhu smiled and said, "Don't worry about Sun Kewang, since he withdrew to the east, he probably doesn't dare to attack Chengdu again.

And if nothing unexpected happened, he might retreat all the way to Chongqing Mansion.What does General Lee think? "

At the end, Aunt Zhu looked at Li Dingguo.

Li Dingguo sighed, "Jian Guoming sees that he is indeed likely to return to the Chongqing Mansion and shrink his troops.

But we can't delay too long, otherwise he may retreat to Huguang or other places after rectifying the remaining troops in Daxi. "

Auntie Zhu nodded slightly, but then said another matter.

"That night, the Great Western Army fled and disappeared. There are probably more than 10 people missing. Excluding those who surrendered from the four camps outside the city in the past few days, and those who were gathered by Sun Kewang, there are still tens of thousands of people whose whereabouts are unknown.

Most of these deserters will become thieves and bandits, endangering the safety of Xiazhou County, Chengdu Prefecture and surrounding counties.

As long as the training has achieved initial results, you will send troops to clean up these bandits. "

"Yes!"

···
August sixteenth.

noon.

Concubine Zhu went back to the old house in Zhulin and had lunch with Hao Guangming and Concubine Zhu.

After the food was served, Hao Guangming said mysteriously, "I'll show you something nice."

After finishing speaking, Hao Guangming moved a heavy wooden box from the corner of the east room and placed it beside the dining table.

Although Hao Guangming's movements were not heavy, there was still a muffled thud when the box fell to the ground.

"What's in here?" Aimee Zhu asked curiously.

"You'll know when you see it."

Hao Guangming opened the wooden box while speaking.

After Aimee Zhu saw what was inside, her beautiful eyes shrank.

She stretched out her jade-like fingers and took out a few metal objects that were about the thickness of her fingers, and said pleasantly, "Is this a drill for making gun barrels?"

"Not bad." Hao Guangming nodded with a smile.

He knew Auntie Zhu would recognize it.

The reason why he thought of getting this thing was because Auntie Zhu went to the Armament Bureau several times, and each time she inspected the production of the gun barrel, it took the longest time.

During this process, both he and Zhu Yuxi had a fairly detailed understanding of the manufacturing process of Daming gun barrels.

Take the current gun control of the Chengdu Arms Bureau as an example.

The wrought iron plate obtained by repeated forging is used as the raw material, and it is gradually forged into a rough blank of the barrel after repeated beating and heating with a special U-shaped mold and a special spherical hammer.

Then comes the finishing of the barrel.

Generally, a round iron rod that can determine the caliber of the barrel is inserted into the rough blank of the barrel, and then heated and forged repeatedly.

At this time, a special concave hammer was used.

A semi-finished gun barrel will not be obtained until the gap between the overlapped edges of the iron pipes is completely gone, and the size and thickness have reached the design estimate.

There are two points worth mentioning here.

First, because the length of the forged barrel is often limited, in order to obtain a longer barrel, a multi-layer coil nesting technology is also used in actual operation.

Although the longer the barrel, the harder it is to make, but as long as the craftsman has good skills, he can still obtain a qualified iron pipe of one or two meters or even longer.

Second, the shape of the gun barrel at this time is not the same as that of later generations. Its cross section is circular inside and hexagonal outside, that is, a hexagonal iron tube with a center.

The third big step is to process the inside of the barrel, that is, the drill tube.

Because the inside of the gun barrel obtained through the previous two steps is not smooth and smooth, it cannot be used. It must be processed with a drill to meet the standard of a real gun barrel.

Due to material problems, even if the drill bit is made of the best steel in the late Ming Dynasty, the efficiency of the drill pipe is still low, and the loss of the drill bit is also great.

A drill bit made of good steel often fails to drill a few barrels before it will be scrapped.

However, Hao Guangming was a little surprised that the craftsmen of the Weapons Bureau did not drill pipes purely by hand, but used a pedal lathe.

Although the efficiency of this kind of lathe drilling pipe is still low, it is much faster than pure handwork.

Hao Guangming knew that by the end of the Ming Dynasty, it was already possible to build an army based on firearms, so he was very concerned about improving the level of firearms production for Aimee Zhu's forces.

When Aimee Zhu visited the manufacture of the gun barrel for the first time, he recorded the screen.

Afterwards, he obtained some useful information through several screen recordings and some "data" that Aimee Zhu asked from the craftsmen, and he wondered what to do.

At first, Hao Guangming wanted to directly get a batch of steel pipes from Hyundai for Auntie Zhu to bring to Daming.

But after careful consideration, he found that it was not impossible to do so, but unnecessary, or uneconomical.

With the quality of modern steel pipes, it would be quite difficult to process them at the end of the Ming Dynasty, not to mention completely impossible.

After all, the best steel in the late Ming Dynasty may not be as good as the ordinary steel in modern times.

This is still the second thing—because if he insisted on letting the end of the Ming Dynasty process the steel pipes, he could also let Auntie Zhu bring the drill bits and other modern tools.

The key is the following two points.

First, the steel pipes are not light, and the goods that Zhu Yuxi and Zhu Yuxie can transport every day are limited, and it is estimated that they may not be able to transport a hundred steel pipes in a day.

Second, Hao Guangming himself had to carry it exhaustingly.Moreover, the length and quality of transporting so many steel pipes back can easily lead to suspicion.

Of course, the most important thing is that Hao Guangming thinks it is unnecessary.

Whether it's the defense of Chengdu that has passed, or dealing with Sun Kewang after a while, it doesn't mean that an elite firearms army is necessary to turn the tide of the battle.

Therefore, judging from the situation Aimi Zhu is facing, although the elite firearms army needs to be trained, there is no need to worry too much.

It is absolutely possible to improve the armament manufacturing technology of Daming, and at the same time use Daming's manpower and material resources to manufacture muskets.

It may not be very efficient to produce muskets in the beginning, but as long as Daming's related crafts, technologies, lathes and other tools are improved, it will be easy to expand the production scale.

Moreover, Daming cannot always rely on the support of modern products, and must always develop related industries.

However, it is possible to use modern items to improve production efficiency in the early stage.

Therefore, after thinking about it for a while, Hao Guangming found a small factory and customized this kind of drill specially used for processing gun barrels in the late Ming Dynasty.

That small factory was short of orders. Although Hao Guangming didn't understand what to do with this suspected drill, it couldn't possibly be a drill (too poor quality in the eyes of modern people).

But for the sake of money, the boss wisely didn't inquire about anything, and produced it as quickly as possible, and delivered it to the town.

Although this kind of drill bit is also very heavy, the amount needed by Daming is not large, and Hao Guangming and Zhu Yuxi can carry it without trouble at all.

　Thanks for [witnessing the arson case] for the 100 starting point reward!
　　
　
(End of this chapter)