He was thinking this way, suddenly, the eunuch outside the hall came in and reported that the new eunuch, Liu Chengzhi, was in charge of the seal of the military war, requested an audience.

When Emperor Chongzhen heard this, his first reaction was that the iron mold casting cannon method that had been arranged to attack the difficulties had been explored. He was immediately excited and immediately sent an order to meet him.

I saw Liu Chengzhi hurried into the hall, greeting him with excitement on his face, and immediately reported: "Your Majesty, the iron mold cast cannon has been completed, it has been completed!"

As expected, Emperor Chongzhen was equally happy, and immediately stood up and waved his hand and said, "Let's go, I'll take a look!"

The mud mold casting artillery technique not only has a long cycle, but also has a success rate of less than one percent. It can be said that the cost of getting a useful cannon is too high. The artillery battalion in the new army needs to be trained, but the training cannons have not been found, which made him a little worried.

If the iron mold casting cannon can be really successful, it will not only greatly reduce the periodicity of casting cannons, but also be able to be launched in time for the training of the New Army artillery battalion, and the popularity of artillery can also be greatly increased. This is a great improvement in the military industry of the Ming Dynasty.

Not long after, Emperor Chongzhen was in the military battle. Everyone here, not only officials at all levels of the military battle, but also soldiers, craftsmen, etc., were all excited. Because they knew that according to the reformed system of the military battle, iron-molded cannons would win a large number of orders for the military battle, and they would earn more money by earning more money, and the welfare of all personnel would be greatly improved.

Emperor Chongzhen came to the cannon casting room and saw three cannons in the yard. On the side, there were iron molds placed one by one. Obviously, these three cannons were cast from these iron molds.

Liu Chengzhi, the eunuch in charge of the military battle, wanted to come forward with a smile, but at this time, Emperor Chongzhen asked: "Who invented it? Let's talk to me!"

When Liu Chengzhi heard this, he felt helpless. There was no chance to show himself so well. He didn't have the shame, or he didn't have the courage to say that he was invented by himself, so he had to turn his head, but he still smiled on his face, and walked quickly to kneeling behind the cannon. The two craftsmen under the steps said, "This is your blessing, why don't you introduce it to Your Majesty?"

The iron mold casting method was jointly figured out by two craftsmen. At this time, both of them were very excited and nodded quickly to agree, stood up, and approached the cannon carefully, but they did not dare to approach the emperor, for fear that Tang would rush to the emperor.

When Emperor Chongzhen saw them, he smiled and approached them. He first asked their names and praised them for a few words, so that they could relax and not be so nervous, and then he asked them to start introducing the iron mold casting method.

In fact, this iron mold casting cannon is not very difficult. It’s just that when the Ming craftsmen learned from the Western Yi, they had mud mold casting cannons. They had the inertial thinking that they wanted to use mud mold casting cannons. After Emperor Chongzhen was inspired and pierced the window paper, relying on the Ming craftsmen’s rich casting experience, they found a complete and effective method of iron mold casting in less than a few days.

Listening to the detailed introduction of the two craftsmen, Emperor Chongzhen also listened carefully and nodded from time to time. It took a long time before the two craftsmen finished the explanation.

Emperor Chongzhen was very interested and asked them to cast cannons on the spot to see. Liu Chengzhi had already guessed this and also made the casting room ready. Therefore, two craftsmen commanded the casting cannons and used iron molds. There was not much time when another iron cannon was cast.

"How is the comparison performance of new and old artillery?" Emperor Chongzhen had seen the speed of casting cannons with his own eyes, so he asked with interest.

After asking, for some reason, the scene suddenly became cold and the air was completely gone.

Emperor Chongzhen immediately felt something was wrong and couldn't help but turn his head to look at Liu Chengzhi and ask, "What?"

Liu Chengzhi thought in his heart that he was unlucky and he would not let him report good things, but he had to report bad things himself. However, he had no choice but to be named by the emperor, so he had to report: "Your Majesty, I have asked someone to do an experiment. This kind of cannon cast from iron molds seems to be less capable than the original cannon."

"Oh? Tell me specifically!" Emperor Chongzhen did not show any signs of disappointment and anger, but just asked seriously.

When Liu Chengzhi saw this, he felt relieved and said again: "Your Majesty, after these cannons are completed, they are mostly white iron pipes, which are relatively brittle. The lifespan of a cannon is estimated to be only about a hundred times, and it is not easy to dissipate heat. Generally, cooling measures must be adopted after three shellings. If the cooling is too fast, the lifespan of the cannon will be reduced."

When Emperor Chongzhen heard this, when he looked at the cannons again, he found that the guns of the cannons were indeed mostly tin. He looked at the two craftsmen for a while and asked, "Can we know the reason, can we solve it?"

The two craftsmen looked at each other, and the older man replied: "Your Majesty, this may be caused by uneven heat dissipation of the iron mold or too large difference in heat dissipation between the inside and outside. Or should I re-temper and take a look?"

When Emperor Chongzhen heard this, he smiled and said, "Yes, iron mold casting cannons will at least solve the speed problem. If there is a new problem, don't be afraid, let's solve it again. I will ask the new army to purchase a batch of artillery first for training. But you must also hurry up and try to solve the new problems."

Speaking of this, he turned to look at Liu Chengzhi and said, "In this military battle, we must cooperate fully to solve the new problems of artillery and try to make the artillery perfect. There is no mistake on the battlefield!"

The quality of artillery is often the key to the outcome of the war on the battlefield. Therefore, when it comes to artillery, he can not care about some problems during training, but to go to the battlefield, some major factors must be solved.

"I obey the order!" Liu Chengzhi immediately agreed. He originally thought that the emperor would be angry after exposing the defects of the artillery. Unexpectedly, the emperor not only did not get angry, but instead encouraged him and asked the new army to purchase a batch, which was really beyond his expectations.

Emperor Chongzhen looked back at the two craftsmen and said to them with a smile: "The good or bad artillery is related to the victory or defeat of the war. If you win, you will defeat the enemy. If you win, you will lose your troops and generals. If you lose, you will lose countless broken families. If you are careful and think carefully, you must let the artillery play its greatest power on the battlefield. Do you understand?"

In fact, these craftsmen also know this truth, but they only have this understanding, but they don’t pay much attention to it. For them, they can only complete the cannon casting task. Now that Emperor Chongzhen emphasized in person, they immediately felt that the responsibility on their shoulders was too great. Forging cannon casting is no longer just about completing the task.
Chapter completed!