Wang Daquan and Shen Rong are both people who know the goods, and the superiority of the method Li Xiang said is naturally obvious, if they get the treasure, they are so excited that they don't know what to say!

Originally, it was extremely lucky to be able to participate in the manufacture of this epoch-making artillery, and in the future, it would be to go down in history, although the two were not the kind of people who particularly valued fame and fortune, but when they thought of their names in the history books, the two couldn't help but feel excited. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Seeing that everyone understood the truth, Li Xiang said again: "The forging method I mentioned just now is only suitable for making small artillery. If you want to make hundreds or even thousands of catties of cannons, you have to use the casting method. Of course, it is more difficult to forge a cannon, and I have studied it here, and I have written it out, so that you can take a look at it for your reference. ”

After speaking, Li Xiang took out the booklet that had already been printed, which not only showed the forging method of small artillery, but also the casting method of large artillery.

Wang Daquan's eyes lit up when he saw Li Xiang's booklet, this is a treasure, he is a person who knows the goods, and naturally knows the importance of these technologies.

snatched the pamphlet from Li Xiang's hand, Wang Daquan couldn't wait to open it and look at it, Shen Rong and Lu Wenxin also came over, everyone completely forgot the difference in identity, and just immersed themselves in artillery technology.

Wang Daquan read while looking at it: "Large artillery casting method." The first step of the casting method is molding. Use extremely dry nanmu or fir wood to make a cannon mold according to the style of the cannon body...... The two ends of the gun mold should grow more than a foot to make a shaft head, and an iron swivel stick is added to the shaft head, and then the gun mold is placed on the rotating frame in order to rotate the mud. ”

After the gun mold is made, the mold of the gun lug, the gun hoop, and the word flower head is installed on it, and the gun mold is evenly painted with fine coal ash, and then used the good glue yellow mud and the sieved fine sand after drying, mixed with two or eight phases, mixed into mud, and shaken the wool, mixed into the mud, and made a warp after being even.

After the mud is adjusted, paste it on the gun mold, then turn the swivel stick, use a round mouth wooden swing board, dip it in water and wait for drying. After drying, apply the mud again according to the previous method. After the mud reaches a certain thickness, use a thick iron wire to wrap it from the head to the tail of the gun mold, and then apply the mud according to the method just now.

When the required thickness is almost reached, the iron bar with a large finger is used to compare the length of the gun mold, the long one is used more, and the short one is used less, and it is evenly placed on the gun mold as a skeleton. Then, an iron hoop 1 inch wide and 5 minutes thick was used to evenly tie the iron bar from the head to the tail of the gun mold.

Then put on the mud and swing evenly. After it is completely dry, the wooden core is taken out and the charcoal fire is put into the clay mold, on the one hand, to burn the clay mold, and on the other hand, to burn the ear, hoop and flower head characters into ashes.

After cooling, sweep out the ash and slag, place the bottom of the wooden mold, and then install the tail beads. Then put on the mud, after drying, take out the bottom of the wooden cannon mold, and then burn the tail beads with charcoal fire, after completely cooling, wait for the kiln casting. At the same time, the mold was made of iron, the length was equal to the length of the inner diameter of the gun, and the size was half of the inner diameter of the gun.

I have to say that this casting method is extremely detailed, and Wang Daquan was also fascinated, and plunged into the cannon casting method described in the booklet.

The second step is to place the gun mold and mold core. The light gun mold weighs thousands of catties, the heavy one weighs tens of thousands of catties, and the cannon core is also very heavy. With the help of simple machinery, the gun mold should be placed first, and then the mold core should be installed in the gun mold, the lower mouth should be plugged tightly, and the surrounding area should be padded with dry soil.

The third step is to refine the ingredients. Whether it is pig iron or copper, it must be refined first, and then cast into thin sheets of three or five catties, waiting to be poured into the furnace for casting.

The fourth step is iron pouring. The refined iron is placed in a pre-bricked furnace in the shape of a copper pouring furnace, and then the iron is catalyzed into juice over a high fire, and then iron is gradually added. When the iron juice is all cleared, like oil and water, and the golden flowers and green flames rise on it, the iron liquid will be drawn out, and gradually put into the mold, and when the wooden mold is filled, it will be poured.

Step 5: Start with your heart. Within 3 days of casting, shake the mold center loose; On the 5th day, take out the mold core; On the 8th day, the soil was dug up, the cannon was put down, the two ends were raised more than 2 feet high, the mud on the mold was removed, and the cannon body was cast.

The sixth step is to look at the chamber. It is to use a certain method to check whether the inside of the chamber is smooth, and the smooth inside of the chamber is a good cannon.

The seventh step is to take the same mouth. After the cannon is cast, the muzzle is uneven, and it must be in unison to make the muzzle neat and smooth.

The eighth step is to clear the chamber. The knife was slashed into the muzzle of the gun, and the inside of the gun was extremely smooth.

The ninth step is to drill the fire gate. The proper placement of the cannon is related to the use of artillery. Therefore, according to the size of the inner chamber, close to the bottom of the gun, use a pure steel rough drill, dipped in oil to drill the fire door, the fire door must be parallel to the bottom of the gun, it is appropriate.

The gun body is fully machined and finally mounted on a gun carriage or mounted on a fixed casemate.

After reciting this method of cannon casting, Wang Daquan seemed to see a mighty 10,000-jin cannon in front of him, and with the roar of the cannon, the Mongolian cavalry fell in pieces!

Seeing that Wang Daquan was still distracted, Shen Rong pushed him and whispered, "My lord, everyone is still waiting for you!" ”

Wang Daquan realized that he was distracted again, coughed lightly twice, and said embarrassedly: "Lord Lu, Li Gongzi, and all the adults, I'm really embarrassed, Wang Mou was fascinated just now, but the method that Li Gongzi researched is indeed exquisite, although it has not been tested yet, but I, Wang Daquan, dare to pack a ticket, this time our ordnance supervisor will make a qualified tiger squat cannon within a month." And that thousand-pound cannon, 10,000-pound cannon, we have to get it out too! ”

Li Xiang couldn't help but applaud and laughed: "Lord Wang is really a good official!" Always worry about the country and the people, I believe you will succeed this time! I await your good news! ”

Lu Wenxin also nodded and said: "It seems that I can return to the emperor, the trial production of the tiger squat cannon is progressing well, and it will only take one month to complete." ”

Wang Daquan suddenly said: "Li Gongzi, although these artillery pieces are very good, but the rockets we are producing now cannot be abandoned, I don't know what suggestions Li Gongzi has for improving our rockets?" ”

Li Xiang secretly said in his heart, this Wang Daquan is really greedy, he has a cannon and thinks about others, so he will tell them the principle of rocket artillery, as for whether he can make it or not, it depends on the people in the ordnance supervisor.

Thinking of this, Li Xiang said with a straight face: "Ladies and gentlemen, the kid has an idea, but he is not yet mature. Why don't we enlarge the current rocket, make it into a rod-shaped rocket weighing more than ten pounds, add explosives and iron pieces to its warhead site, load a propellant in the middle, eject it through the combustion chamber at the tail, push the rocket, and put it into an iron tube when launched, this iron tube can be made into a honeycomb shape, so that it is made into a rocket box that can be launched at the same time, what do you think? ”