1. Standardization

The green hand shopkeeper ridiculed Wang Youzhen, even if Wang Youzhen didn't hear it with his own ears, he had already expected it.

Whether it is the sarcasm of the shopkeeper of the green hand, or the rumors that spread in the middle of the night.

Wang Youzhen didn't care at all, and his only thought now was to hurry back to the Industrial Academy to find the eldest disciple Jiao Miao.

The eldest disciple Jiao Miao has been building new flintlock pistols for a long time.

The flintlock pistol he built from small parts was very different from this flintlock pistol that was rebuilt from the original.

In addition, after this period of mathematical, physical and chemical study, Jiao Miao has a lot of new ideas and is making some new inventions, but I don't know what the results are now.

Wang Youzhen walked back to the industrial school, and sat in the north courtyard facing south, which was his personal independent courtyard.

Two rows of small courtyards were built on both sides of the industrial school, which were used by future Daming blowout talents.

Wang Youzhen came to the small courtyard where the eldest disciple Jiao Miao was, and the most eye-catching thing was a general room.

There are stoves, bellows, cutting boards, and other tools used to make flintlock pistols, and it looks like a blacksmith's shop.

However, it is much larger than the average blacksmith's shop.

In Wang Youzhen's view, it is more like a factory workshop, after all, there is a large Ming Dynasty drilling machine in it.

This Ming Dynasty drilling machine was used to trim the chamber of the flintlock pistol, and when Wang Youzhen saw this drilling machine for the first time, he was really a little surprised.

The drilling machine is made of wood as a frame, and the round stone disc is used as an inertia wheel, which is pulled by manpower after tying a leather strip, so that the stone disc drives the drill bit to rotate.

The only drawback is that tools such as drill bits and frustration knives should be made of hard steel, and the steel is relatively soft, so half of the time spent making bird guns is in the drill and scraper guns.

To put it bluntly, the drill bit should be made of high-carbon steel, not the softer low-carbon steel.

Wang Youzhen walked into the general room, the weather was getting cooler, and it was autumn, and there were still heat waves blowing in front of him.

Jiao Miao is building a flintlock pistol, which uses a three-stage joint.

The method is to make the gun pipe first, and the gun pipe is made of wrought iron section by section, generally two or three sections, and finally welded into one.

The first step is tube making.

Jiao Miao picked up a slender cylindrical steel core to make cold bones.

First, the wrought iron used to make the gun tube is burned until it is red-hot, and then the blank is taken out until it has been burned to a certain temperature.

Patriarch Jiao hammered the red-hot wrought iron outside the steel core and rolled it into an iron pipe.

In the process of cladding iron, the steel core is constantly extracted and cooled with water to prevent the steel core and wrought iron from being welded together.

The thickness of the coiled iron tube should be slightly thicker, so that the tube is strong and can withstand multiple successive launches.

The second step is welding.

Since the long guns of more than three feet are welded in sections, the guns that are not well welded are easy to be fried.

Patriarch Jiao and other gunsmiths regard whether the gun pipe is welded seamlessly as the key to the success or failure of the gun making.

Wang Youzhen is very clear about this, as early as the middle of the Ming Dynasty, when the Ming army invaded, the craftsmen of the Ming army took tricks and caused many accidents.

These are even recorded in the "New Book of Ji Xiao": "Recently, there are few people who are aware of the pain in this area, and they do not complain and really instruct the craftsmen, and listen to them roll into iron cylinders, with uneven thickness and thickness······ Even a single tube is rolled into a single tube, and it is blown up and damaged. ”

Wang Youzhen stood in the general's room, staring at Jiao Miao and Patriarch Jiao building a flintlock pistol for a full day.

In the process, Wang Youzhen discovered what surprised him.

Jiao Miao was actually using something similar to vernier calipers and micrometers.

Could it be that in ancient times there were really vernier calipers and micrometers?

Wang Youzhen had questions, and when it was time to eat, he walked to Jiao Miao and Old Man Jiao and squatted in the open space to eat together.

Wang Youzhen took a few bites of the pie and couldn't help asking, "The two measuring tools used just now are vernier calipers and micrometers?" ”

To Wang Youzhen's surprise, Jiao Miao swallowed the fat in his mouth, smiled stiffly, and actually gave an affirmative answer: "Yes." ”

Patriarch Jiao, who was also squatting next to him, saw his grandson's appearance like this, and he was so angry that he almost slapped his grandson on the head.

Now the patriarchs of the ancestral halls don't know that Wang Youzhen is actually the behind-the-scenes owner of the three villages, and he is also the little gentleman they admire.

Mr. Xiao took the initiative to ask, so he didn't hurry up to say a few nice words to bring the relationship between Mr. and the disciple closer.

Although Jiao Miao is already Wang Youzhen's eldest disciple, he can't kiss anymore, and he is basically equivalent to his son.

But recently, there is another Bo Jue, and maybe more disciples will be accepted in the future.

If there is only one son in the family, all the favor must be on that one son.

There are more children in the family, and if you want to get the attention of your parents, you have to compete for favor.

In addition, since Patriarch Jiao knew the role of vernier calipers and micrometers invented by his grandson, as a gunsmith who has been building bird guns for decades, he understands the role of these two things too well.

These two things can be said to have brought earth-shaking changes to the bird.

Patriarch Jiao also understands the temper of his grandson, he doesn't like to talk much, and his nervous movements stiffen when he sees people.

Patriarch Jiao laughed and took the initiative to say, "These two things called vernier calipers and micrometers were made by my eldest grandson. ”

"The role is to mark ...... Sign...... What the hell is coming. ”

Patriarch Jiao suddenly got stuck at this, because it was a new word he had never heard before.

At that time, it came out of the mouth of his grandson Jiao Miao, and he didn't take it seriously, and he forgot about it after listening to it once.

Wang Youzhen stared at Jiao Miao with his eyes, quite bright-eyed: "Standardization." ”

"Yes, yes, yes."

Patriarch Jiao slapped his head sharply and grinned, "That's what kind of standardization." ”

Patriarch Jiao was afraid that Wang Youzhen would not understand the power of standardization, so he hurriedly explained: "With this standardization, we will be able to establish what caliber and lead bullet diameter my eldest grandson said." ”

"To put it bluntly, it is to turn the muzzle size of the flintlock pistol and the size of the lead bullet into the same shape."

When Patriarch Jiao said this, he glanced back at Wang Youzhen.

Seeing that he didn't show a shocked expression, he was a little disappointed.

But don't worry, Mr. Little doesn't know how these two subtle changes will bring to the flintlock pistol.

Patriarch Jiao pushed his grandson Jiao Miao, who was just there, eating stiffly, still silent and silent.

Patriarch Jiao could only introduce himself: "Mr. Xiao, don't underestimate these two small-sounding changes, they play a big role." ”

"The bird guns used by the officers and soldiers are all made by hand, which causes the muzzle size of the bird guns to be different."