The Rise of Ming Dynasty 1646

Chapter 454 The Small "Artifact"

Afterwards, Zhu Linmei briefly explained to Mu Zhiqing the process of building a canning factory and producing canned food.

In fact, this method of steaming and canning is extremely simple, just keep it as clean as possible.The biggest technical difficulty is the step of sealing with wax, and even this difficulty will disappear after mass production of rubber sealing rings in the future.

It wasn't until noon that he finished ordering the cannery.

After the two had lunch together, Zhu Linmi rushed to the east courtyard to check the experimental situation of vulcanized rubber.

Although the pot of rubber last night was successfully vulcanized, its elasticity and hardness were very poor. It depends on the next few pots.

Yao Qisheng and others saw that the assistant king was coming, and hurriedly nodded in this direction.

This is also what Zhu Linming ordered, so there is no need to be too polite during the experiment.

He glanced at the finished vulcanized rubber products neatly placed beside him, then turned to Yao Qisheng and asked, "How is the condition of these batches of rubber?"

"Returning to Your Highness, nine pots have been produced. The students found that adding about [-]% of sulfur, and dry steaming for four hours is the most suitable." Yao Qisheng presented him with a copy of the experimental results respectfully. Severe vulcanization is better. The vulcanization speed of different thicknesses of raw rubber is not the same. Now it is being tested repeatedly with more sizes of raw rubber."

Zhu Linmei first picked up the piece of vulcanized rubber marked "four hours, one and a half", and broke it hard, feeling that it was far more elastic than raw rubber.This level can barely be used to make things like solid tires.

He glanced at the experimental records in his hand again, and saw that the data was listed in a neat table according to his requirements, and the time, temperature, sulfur ratio, raw rubber weight, etc. were extremely detailed.

He nodded with satisfaction. With such a rigorous and meticulous experimental method, he believed that it was only a matter of time before the best vulcanized rubber parameters were tested.

On the side, Wen Xinping brought more than a dozen black and yellow rubber rings with numbers written on them, and said, "Your Highness, this is the 'sealing ring' you want. It has been vulcanized in different ways, please take a look."

Zhu Linming's eyes lit up, and she hurriedly took it over to examine carefully, and some of them were quite suitable in terms of elasticity and hardness.He couldn't help being very interested, and ordered Yao Qisheng and others to continue the experiment, and then took Shi Lin to the Dragon Guard camp outside the city.

Chen Xiongfei has been notified by the soldiers who came in advance, and he is waiting outside the camp.Seeing Zhu Linming approaching, he hurriedly saluted: "My lord, the cannon has been prepared on the barren slope to the north."

"Okay, let's go and try."

"Yes!"

The Artillery Battalion has put under martial law several miles around the barren slope, and three No. [-] Frang machine guns have been placed below the slope.

Zhu Linmei stepped forward to remove the sub-cluster of a cannon, placed a rubber sealing ring at the junction of the barrel and the sub-cluster, and put the sub-cluster back.

The Franco cannon is like digging a gap in the body of a normal gun, and the sub-gun is the missing part of the gun body.This design can be equipped with multiple sub-guns for one artillery, and the gunpowder and shells can be loaded in the sub-guns in advance.

When firing, just put the gun in the gap at the back of the gun, and the gun can be ignited immediately.After firing, you can continue shooting by changing to another sub-gun.Since there is no time to load ammunition, the rate of fire is extremely high, and can even reach an astonishing speed of seven shots in one minute!

But the Fran cannon has a fatal flaw.Limited by the processing precision of this era, the connection between the gun and the gun body is not tight, and the high-temperature and high-pressure gas from the gunpowder combustion will leak a large amount from here, resulting in very limited range and power.In the past, the effective range of the Fran cannon was only more than 200 steps, which was very tasteless.

But now that Zhu Linmi has the "artifact" of the rubber sealing ring, it can greatly improve the "air leakage" problem between the gun and the barrel.

Because of the sealing ring, he took a lot of effort to push the gun in, and then stepped back a few steps to signal the artillerymen beside him to continue operating.

Chen Xiongfei personally stepped forward to command, ordered the muzzle to be leveled, then lowered the command sword in his hand, and said loudly: "Let it go!"

There was a loud bang. In the past, there was almost no sparks overflowing near the blunderbuss. The barrel of the gun slammed back and retreated nearly a foot away.

Immediately, a cloud of dust rose from the slope in the distance.A soldier of the artillery battalion took a knot and rushed to measure, and soon ran back and said: "Report! The shell fell 150 feet away, and rolled out of nine feet!"

150 zhang? !Zhu Linming calculated in her heart, that is to say, the cannon could hit the enemy one mile away by 50 meters!

Chen Xiongfei and the other artillerymen were also taken aback when they heard "150 feet"—what kind of magic did His Highness use to almost double the firing range of the Frang machine gun in an instant!
These Franc cannons used to be tasteless to the Dragon Guards, but now they have a range of nearly one mile, and a terrible rate of fire of six or seven rounds per minute. This is simply the seventeenth century " Machine gun" Ah!

With the help of the sealing ring, the [-] Franco cannons of the artillery battalion are gathered together and fired at them. The dense "bullet rain" can definitely sweep away "not a blade of grass" within a mile!
Zhu Linmi suddenly remembered something, and hurriedly said to the gunner: "Quickly, first remove the gun and clean the barrel!"

"Yes!" The two gunners quickly removed the guns.Zhu Linmei stepped forward to watch, and sure enough, as he expected, the rubber sealing ring had been deformed by the high temperature of the gunpowder, and part of it stuck to the junction of the cannon body and the sub-gun.

He took out the knife he had prepared and scraped off the rubber residue. Fortunately, the high temperature softened the rubber and it was easy to clean it off.

It seems that every shot will consume a sealing ring.He thought, but compared to improving the performance of the artillery, this consumption is definitely worth it!When the vulcanized rubber factory is put into production, don't we need as many sealing rings that are not as big as a bracelet?

He handed over the remaining sealing rings to Chen Xiongfei, briefly explained the principle, and then asked them to test and record the shooting effect of each sealing ring one by one.

Soon, the sixteen or seventeen rubber rings were all exhausted amidst the sound of the rumbling guns, and Chen Xiong flew over to salute and said, "My lord, I have tried them all. The No. 11 sealing ring can increase the shooting distance of the cannon to more than ten feet away from one mile." .The second circle is the worst, with a shooting distance of only 130 feet.”

The sealing ring is too soft and easily broken by gunpowder gas, and it is too hard to achieve the best sealing effect. It seems that more tests are needed.Zhu Linmin nodded and wrote it down, and then rushed back to the original Lu Palace to tell Yao Qisheng the test results, and asked them to make a batch of sealing rings as soon as possible according to the process of No.11 ring under laboratory conditions.

For the time being, a range of one mile is enough.

……

"These guys are more than successful than they are!" Hong Chengchou slammed the stack of books in his hand to the ground. These were the memorials sent by Du Dorgon to impeach Hong Chengchou.

(End of this chapter)