"Using sulfuric acid can smooth the surface of steel."
Chen Shuangjin was pulled into the conference room and calmed down Zuo Mengeng with just one sentence.
Oh boy, the pickling is out.
But Bi Maokang and others were confused and didn't know if what he said was right.
Chen Shuangjin was anxious.
"I have been studying this novel gas recently and found that if I throw steel into sulfuric acid or nitric acid, when I take it out again, the steel will be much smoother than before."
"He is right, sulfuric acid and nitric acid can indeed play this role."
Of course Zuo Mengeng knew what pickling was.
It uses an acid solution to remove the oxide scale on the steel surface and clean the metal surface.
In particular, the steel cast into gun barrels and gun barrels is more likely to produce oxide scale, which is also a headache for craftsmen.
Because during the manufacturing process of gun barrels and gun barrels, high temperatures will inevitably occur.
Craftsmen can also deal with the oxide scale in the barrel.
The oxide scale in the barrel is powerless once the barrel is made of steel.
Why is this?
In industrial manufacturing, both large and small are quite difficult categories.
It's difficult to make something big. For example, 10,000-ton giant ships, super-large cranes, large transport aircraft, etc. all test industrial strength.
Likewise, smallness is also a problem in industrial manufacturing.
For example, when it comes to nanoscale or micron-scale industrial devices, future generations will know how difficult it is.
In this era, the small size of the gun barrel has become a gap that is difficult for craftsmen to cross.
Because the barrel is large enough, even if there is oxide scale inside, it can be physically removed using tools.
But compared with the gun barrel, the caliber of the gun barrel is undoubtedly too small, and there are no suitable tools to insert it for cleaning.
The pickling mentioned by Chen Shuangjin is undoubtedly a good method.
When Bi Maokang and others learned that there was such a wonderful method, they couldn't wait for a moment. After quickly building a steel barrel, it was tested in a sulfuric acid pool.
The results are very gratifying.
All the rough impurities on the inner wall are gone, and the smoothness is far better than that of a wrought iron barrel.
With a brand new barrel, there are no obstacles to the manufacture of sniper rifles.
The length of this steel barrel is a full 1.5 meters, and the internal rifling is more refined, which increases the rotation 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 Mengeng also had people complete the manufacturing of some new tools.
One is Xiangfengwu, used to measure wind direction; the other is anemometer, used to measure wind speed.
Xiangfeng Wu has existed since ancient times, so it is not surprising.
What craftsmen have to do is to miniaturize it.
How small is it?
Only the size of a palm.
It is packed in a small wooden box with a lid. When using, open the lid and stand up the Xiangfengwu. Because there is a dial underneath, it is easy to see the wind direction.
As for the anemometer, it was an invention by Leonardo da Vinci. It's very simple and only requires a few pieces of wood to make.
Make a wooden frame with three sides and one side free, and place an arc dial with an arc of 120 degrees on it to mark the wind force.
A small wooden board that can be blown by the wind is hung in front of the top wooden frame. When the wooden board is blown inward, where the bottom is pointing, then the wind strength is.
This level of wind power is of course different from that of later generations, but it is also helpful for snipers to make calculations.
Looking at the wind meter, Bi Maokang, Li Banghua and others were amazed. When they learned that it was invented by a great Western man, they all took it to heart.
Needless to say, they will definitely learn more about Leonardo da Vinci when they return.
I wonder if these Confucian masters will become tech masters as a result?
Several others were invited.
That was 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 create shooting elements.
The advantage of this is that as long as specific values are obtained, in the future, snipers only need to measure the wind direction, wind speed, and distance, and then they can directly adjust the power position of the scope, which greatly saves shooting time and does not need to do the calculations in person.
Zuo Mengeng originally wanted to ask Xu Ruolin to help with this job, but Xu Ruolin has been busy translating the Leonardo da Vinci manuscripts that he could find recently.
Because Xu Ruolin discovered in these manuscripts that Leonardo da Vinci had conducted in-depth research on the manufacture of springs.
Bi Maokang's spring manufacturing has been stagnant, and the anxious old man's beard has turned white. Knowing that the sages of Europa had a solution, they urged Xu Ruolin to translate it quickly.
Xu Ruolin had no time, so she sent Zuo Xianmei.
Although Zuo Xianmei's mathematics level is far inferior to that of Xu Ruolin, it is not a big problem to use it to calculate and snipe Zhu Yuan.
Under the gaze of all the big guys, Zhao Sanyang has never been so nervous.
He never thought that one day he would be the center of attention.
Get into the shooting position with your off-hand, charge, reload, and aim at the target.
The first shooting target was at a distance of 100 meters, which was basically not difficult. It was mainly used to test the accuracy of the sniper rifle.
At a distance of one hundred meters, every detail is clearly visible in the eight-power scope. Zhao Sanyang's aim was effortless.
The gun went off and the target moved. When I checked it, I found that it was exactly ten rings, hitting the bullseye.
This time everyone was shocked.
The new military's flash cap gun, even the best craftsmanship, can't do this.
This shows that the pickled steel barrel is not a little bit better than the wrought iron barrel.
Except for Zuo Mengeng, everyone overlooked that the barrel of this sniper rifle was much longer than that of an ordinary musket.
The second shot was a two-hundred-meter target. Zhao Sanyang aimed at the tenth ring, but after shooting, it was only nine-point-eight.
Because you are lying on the ground and shooting, you don't need to consider the problem of human breathing causing the barrel to float, and you can easily measure the impact of wind direction and wind force on the bullet.
In fact, the main reason was that the lead bullet was too light, which caused an error in the 200-meter target.
If it is a sniper rifle of later generations, the accuracy will basically not be affected at a distance of two hundred meters unless there is extreme wind.
Zuo Xianmei, together with Hou Fangyu and Zhang Lingxi, used the obtained wind direction, wind force, distance, target deviation and other data to easily obtain the shooting elements under the wind conditions.
The next step is to calculate the errors under the same wind conditions of 300 meters, 400 meters, 500 meters, etc., and then add them to the table one by one.
This job is very boring and long.
Because today's wind speed is not equal to tomorrow's wind speed, if you want to get enough Zhuyuan, you must test and calculate day after day.
Seeing Zuo Xianmei, Hou Fangyu, and Zhang Lingxi happily calculating, Zuo Mengeng couldn't help but admire them.
At the very least, if you let him do such a boring thing, he will go crazy.
This time, the overall effect of the test was very satisfactory to everyone.
The effective range of the sniper rifle reaches 910 meters.
Although it seems inferior to the Minie rifle later equipped by Britain, France and other countries, it must be considered that the caliber of this gun is much smaller than the Minie rifle, and it uses less medicine, and the barrel length is the same.
The most important thing is that the accurate shooting distance of this sniper rifle is as high as 650 meters, which is much higher than the 550 meters of the Migne rifle.
Coupled with a sight, it was possible to achieve technological advancement two hundred years ago.
"Select outstanding shooters from the entire army to become professional snipers. I will sort out the relevant sniper courses as soon as possible and teach them myself."
Seeing that the sniper rifle was so effective, Zuo Mengeng immediately made the decision to add the sniper profession to the new army.
You never know when a sniper will be able to determine the outcome of a war or a battle.
But for Bi Maokang, Li Banghua and others, the power of the sniper rifle only amazed them for a moment.
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 they master pickling technology, the field of metal processing will be infinitely expanded in the future.
Acid solution has finally broken away from the single production and manufacturing process of mercury fulminate and entered the vision of the big guys.
I believe 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 once again on the market, and they are still being snapped up.
As a major shareholder, Zuo Mengeng naturally doesn’t have to worry about not having enough to eat.
But after eating fresh vegetables in this bitterly cold winter, the Xu family all went crazy.
"Even in the south of the Yangtze River, it is extremely difficult to eat a bite of green vegetables in winter. The talent of Zhongheng is really astonishing in the past and today, rivaling the sages."
Xu Yuandu was holding the green vegetables between his hands, and his mind suddenly became eager.
