Ming Zuo

Chapter 262 Unconscious Craft Progress 【Seeking Monthly Pass】

"Sulfuric acid can be used to smooth the surface of steel."

Chen Shuangjin was pulled into the meeting room, and with only one sentence, Zuo Menggeng was calmed down.

Hey guys, pickling is out.

But Bi Maokang and others were baffled, wondering if what he said was right.

Chen Shuangjin was in a hurry.

"I've been researching that novel gas recently, and found that steel is thrown into sulfuric acid and nitric acid, and when it is taken out again, the steel is much smoother than before."

"He's right. Sulfuric acid and nitric acid can do that."

Of course Zuo Menggeng knew what pickling was.

It is to use an acid solution to remove the scale on the surface of the steel and play a role in cleaning the metal surface.

Especially the steel that is cast into gun barrels and gun barrels is more likely to produce oxide scales, which is also a headache for craftsmen.

Because during the manufacturing process of gun barrels and gun barrels, high temperatures will inevitably be generated.

Craftsmen can still deal with the oxide skin in the gun barrel.

And the oxide skin in the barrel, once the barrel is made of steel, can do nothing.

Why is this?

In industrial manufacturing, both large and small are quite difficult areas.

It's hard to make something big.For example, [-]-ton giant ships, super-large cranes, large transport aircraft, etc., all test industrial strength.

At the same time, small size is also a problem in industrial manufacturing.

People in later generations know the difficulty of nanoscale and micron-scale industrial devices.

In this era, the small barrel has become a gap that craftsmen are not easy to bridge.

Because the gun barrel is large enough, even if there is scale inside, it can be removed physically with tools.

However, compared with the gun barrel, the caliber of the gun barrel is undoubtedly too small, so there is no suitable tool to stuff it in for cleaning work.

The pickling mentioned by Chen Shuangjin is undoubtedly a good way.

When Bi Maokang and others learned that there is such a wonderful method, they couldn't wait for a moment.After quickly forging a steel barrel, it was tested in a sulfuric acid pool.

The results were delightful.

The rough impurities on the inner wall are all gone, and the smoothness far exceeds that of the wrought iron barrel.

With a completely new barrel, there are no obstacles to the manufacture of sniper rifles.

The length of this steel barrel is a full one and a half meters, and the internal rifling is also finer, which increases the rotational speed of the projectile.

Ten days later, the newly manufactured scope and the newly manufactured sniper rifle were assembled together, and it was time for test firing.

During this period, Zuo Menggeng also had people complete the manufacture of some new tools.

One is Xiangfengwu, which is used to measure wind direction; the other is an anemometer, which is used to measure wind speed.

It is not uncommon for Xiangfeng to have existed since ancient times.

What craftsmen have to do is to miniaturize it.

How small is it?

Only the size of a palm.

Packed in a small wooden box with a lid, when in use, open the lid and put it upright.Because there is a dial underneath, it is easy to see the wind direction.

As for the anemometer, it was da Vinci's invention.Very simple and only needs a few pieces of wood to make.

Make a wooden frame built on three sides and one side is free, and put a circular disc with an arc of [-] degrees in it, and the wind force is marked on it.

A small wooden plank that can be blown by the wind is hung in front of the top wooden frame. When the wooden plank is blown to the inside, where the bottom point points, then the wind force will be several levels.

This level of wind power is of course different from that of later generations, but it is also helpful for snipers to calculate.

Looking at the anemometer, Bi Maokang, Li Banghua and others were amazed.Knowing that it was invented by a great Western power, I was all taken care of.

Needless to say, when they go back, they will definitely learn more about Da Vinci.

I don't know if these Confucian masters will become technological masters because of this?

Several others were invited.

That is Zuo Xianmei and her two little followers, Hou Fangyu and Zhang Lingxi.

The purpose of their coming here today is to conduct overall calculations, obtain the numerical relationship between wind direction, wind force and shooting distance, and then make them into shooting elements.

The advantage of this is that as long as the specific values ​​are obtained, snipers only need to measure the wind direction, wind speed, and distance in the future, and then they can directly adjust the power position of the scope, which greatly saves shooting time and does not need to calculate it by themselves.

Originally, Zuo Menggeng wanted to ask Xu Ruolin for help with this job, but Xu Ruolin has been busy translating the Da Vinci manuscripts he could find recently.

Because Xu Ruolin discovered in these manuscripts that Da Vinci had in-depth research on the manufacture of springs.

Bi Maokang's spring manufacturing has been stagnant, and the beard of the anxious old man has turned white.Knowing that the sages of Europa already had a solution, they urged Xu Ruolin to translate it quickly.

Xu Ruolin was not free, so she sent Zuo Xianmei here.

Although Zuo Xianmei's mathematics level is far inferior to Xu Ruolin's, it is not a big problem to use it to calculate and snipe Zhu Yuan.

Under the watchful eyes of all the big shots, Zhao Sanyang has never been so nervous.

He never thought that one day he would become the center of attention.

Get into the shooting position with your deputy, load the ammunition, reload, and aim at the target.

The first target to shoot was at a distance of [-] meters, basically there was no difficulty, it was mainly used to test the accuracy of this sniper rifle.

The distance of [-] meters is really detailed in the [-]x scope, and Zhao Sanyang's aiming has no difficulty.

The gun went off, and after checking it, it was found that it happened to be the tenth ring, hitting the bull's-eye.

This time everyone was shocked.

Even the best-crafted flash cap guns used by the new military cannot do this.

This shows that the pickled steel barrel is not a little bit better than the wrought iron barrel.

Except for Zuo Menggeng, everyone ignored that the barrel of this sniper rifle is much longer than that of ordinary muskets.

The second shot was a [-]-meter target. Zhao Sanyang aimed at the tenth ring, but after shooting, it was only nine point eighth.

Because it is shooting lying on the ground, it is not necessary to consider the problem of the barrel floating caused by human breathing, and the influence of wind direction and wind force on the bullet can be easily calculated.

In fact, the main reason is that the lead bullet is too light, which leads to an error in the [-]-meter target.

If it is a sniper rifle of later generations, the distance of two hundred meters will basically not affect the accuracy unless it is extremely windy.

Zuo Xianmei led Hou Fangyu and Zhang Lingxi, and using the wind direction, wind force, distance, target deviation and other data obtained, it was easy to come up with the shooting parameters under the wind condition.

The next step is to calculate the errors under the same wind conditions such as [-] meters, [-] meters, and [-] meters, and then add them to the table one by one.

This work is very boring and very long.

Because today's wind speed is not equal to tomorrow's wind speed, if you want to get enough elements, you must experiment and calculate day after day.

Seeing Zuo Xianmei, Hou Fangyu, and Zhang Lingxi happily calculating, Zuo Menggeng couldn't help but admire.

At least let him do such a boring thing, he will go crazy.

This time the test, the overall effect made everyone very satisfied.

The effective range of the sniper rifle has reached 910 meters.

Although it seems that it is not as good as the Minie rifle equipped by Britain, France and other countries later, it must be considered that the caliber of this gun is much smaller than that of the Minie rifle, and it uses less medicine, and the barrel length is even more equal.

The most important thing is that the precise shooting distance of this sniper rifle is as high as 650 meters, which is much higher than the 550 meters of the Minie rifle.

Coupled with a scope, it has already achieved technological crushing two hundred years ago.

"Select excellent shooters from the entire army and turn them into professional snipers. I will sort out the relevant sniper courses as soon as possible and teach them myself."

Seeing that the effect of the sniper rifle was so good, Zuo Menggeng immediately made a decision to add the profession of sniper to the new army.

At some point, snipers will be able to determine the outcome of wars and battles.

But for Bi Maokang, Li Banghua and others, the power of the sniper rifle only made them amazed for a while.

They actually paid attention to pickling technology at the same time.

This technology, which was accidentally discovered by Chen Shuangjin while studying hydrogen, has great potential.

They know very well that once the pickling technology is mastered, the future metal processing field will be able to expand infinitely.

Acid solution, finally broke away from the single manufacturing process of mercury fulminate, and entered the field of vision of the bosses.

It is believed that with their attention and application, acid solutions will shine in industrial production in the future.

The first month is approaching.

After nearly two months of cultivation, Linqing's off-season vegetables are on the market again, and they are still being snapped up.

As a major shareholder, Zuo Menggeng naturally didn't have to worry about not being able to eat.

But after eating fresh vegetables in this severe winter, the whole Xu family was going crazy.

"Even in the south of the Yangtze River, it is extremely difficult to eat a bite of green vegetables in winter. The talents of Zhongheng are really astonishing from the past and the present, rivaling the sages."

Xu Yuandu held the green vegetables between his hands, and his thoughts suddenly became eager.

(End of this chapter)