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Chapter 530 Improvement of Artillery

Not long after, Liu Chengzhi, the eunuch in charge of the Bingzhan Bureau, hurried in and saluted with joy on his face, letting Emperor Chongzhen know without asking, it must be a good thing.

Sure enough, after the ceremony, I heard Liu Chengzhi play: "Your Majesty, the performance of the artillery cast by the Bingzhan Bureau has more than doubled!"

After the success of casting cannons with iron molds before, only the casting speed was increased, but there was no improvement in performance. The reason for this is that most of the cannons cast with iron molds are white iron cannons.

This kind of artillery, if the firing speed is fast, the temperature is too fast to cool down quickly, so every three shots have to be cooled for a long time, and the service life is limited.In the actual battlefield, this defect is easily fatal.

But at this time, it was only used for the training of the artillery battalion of the new army, but there was no need to be so particular about it, and it was not used when it was used almost.Compared with the cost of casting cannons in clay molds before, this kind of usage is within the acceptable range.

But the artillery battalion of the new army must go to the battlefield, which also requires that the performance of the artillery must be improved.When Emperor Chongzhen inspected the Military Bureau before, he asked them to improve the performance of the artillery.

Emperor Chongzhen didn't expect that in less than two months, the performance of the Bing Zhan Ju had more than doubled. He couldn't help being very excited, and immediately ordered the Bing Zhan Ji to go and see it.

Liu Chengzhi was naturally happy, he had made a success, and he wished that the emperor could go to the scene to see it.After waiting for the military battle, he immediately led Emperor Chongzhen to the Cannon Hall graciously.

Just like last time, there are many cannons in the courtyard of the Cannon Hall.Liu Chengzhi pointed to the cannons and introduced them to Emperor Chongzhen one by one.

There are old and new cannons. Through comparison, Emperor Chongzhen has an intuitive impression.Then Liu Chengzhi can introduce methods to improve performance.In fact, there are only a few aspects. One is the annealing treatment, which improves the quality of the cannon; the other is to improve the quality of the molten iron to make it even better.

Emperor Chongzhen was excited when he heard it, so he walked into the Cannon Hall to visit the site, but found that there were many cannons inside, with various inclinations, and there were pools of boiling water beside it, which made Emperor Chongzhen see A little surprised, he couldn't help asking: "What is this for?"

"Your Majesty's instructions, the servants uphold the holy will, and specially asked many craftsmen to think more ideas and do more experiments." Liu Chengzhi introduced with a little bit of color, "The performance of the artillery is not good, probably because the iron mold cools too fast. The internal and external cooling speeds are different. After further consideration by the servant, the biggest problem should be that the inside of the gun bore is cooling too fast, so I tried to find a way to slow down the cooling speed inside the gun bore. But I don’t know how slow it should be, just Think of ways to try one by one."

When Emperor Chongzhen heard this, he couldn't help nodding his head, but he also knew that Liu Chengzhi definitely didn't think of the reason.So, he stared at Liu Chengzhi and asked, "You came up with this yourself?"

As soon as the emperor asked this question, Liu Chengzhi didn't dare to talk nonsense, otherwise it would be a crime of deceiving the emperor. He immediately replied: "Under the auspices of the servants, we worked together to get such a method!"

Emperor Chongzhen nodded and said: "Your merit as a leader cannot be lost no matter what. But you should also remember the method proposed by any craftsman and report it to me. This will also be the case in the future. Whoever proposed it Ideas, if it is feasible, you let whoever is responsible, and if there is an achievement in the end, he has credit, and you also have credit. Only in this way can they really mobilize their enthusiasm and let them come up with more ideas. One of your leaders The merit will be greater, and I can rest assured that you will always be in charge of such an important military situation, understand?"

These words made Liu Chengzhi's brow faintly covered with sweat, and he couldn't help but quickly nodded and replied: "Your Majesty is wise, this servant understands!"

When the craftsmen not far away heard these conversations, they looked at each other with surprises on their faces.

In fact, not only at this time, but even in the future, no matter how advanced and advanced civilization and technology are, as long as it is a human society, there will be such a situation, and the leader will take the credit of his subordinates.

How could it be possible that Emperor Chongzhen didn't know this? He was in a good mood at this moment, so he just mentioned one or two points and warned Liu Chengzhi in advance, which is considered to have something to say first.

After he asked again, Li Junfeng, the head craftsman, came to see him. It was he who came up with this method.After listening to his explanation, Emperor Chongzhen understood the principle he thought of.

The general statement is: Li Junfeng believes that after the inner layer of the gun barrel is cooled and fixed, when the outer layer gradually cools, due to the relationship between thermal expansion and cold contraction, when the outer layer of the barrel cools, it will hoop the inner layer and create an inward of stress.Of course, there is a problem of cooling speed. If the ideal state is to be achieved, the performance of the artillery can be improved a lot.

And the method he thought of was based on this idea, which is to change the inner mold into hollow, and then add hot water of various temperatures to make the cooling rate of the inner wall of the gun bore different rates, so as to find the most suitable one. The cooling rate is fast, so that the performance of the artillery can reach the best.At present, this idea has just begun to be implemented, and there are no results yet.

Emperor Chongzhen kept nodding his head when he heard it. This theory sounds good at first glance, and it should be a good experimental method to guide practice.Thinking of this, he immediately praised: "Not bad, it's worth trying!"

He didn't know that Li Junfeng's method was accidentally similar to a well-known method on another plane, that is, in 1860, Thomas Rodman, a major of the U.S. Army, invented the hollow casting process, namely Casting the cannon around the core, and then cooling it with running water, this is a method of hardening the inside of the cannon bore first, referred to as the Rodman casting cannon method.

Of course, if this casting method is based on the clay casting method, it cannot be realized.Only after the iron mold cast gun appeared, could such a natural development be possible.

Compared to Rodman in that plane, the military situation at this time can be described as rich and powerful, with sufficient manpower and material resources, and various experiments can be carried out together.And relatively speaking, the wealth of experience accumulated by many craftsmen in casting cannons is not comparable to that of Rodman.

After hearing this, Emperor Chongzhen praised Li Junfeng again, and asked other craftsmen to learn from him, so they had to use their brains and think more.He has reason to believe that as long as the creative enthusiasm of Ming craftsmen is stimulated, there will be unexpected gains.Chinese people have never been stupid!

After returning from the inspection of the Military Battle Bureau, Emperor Chongzhen immediately issued an order to the new military commander Cao Huachun, telling him the good news, and preparing to re-equip the artillery battalion of the new army, and then conduct a new round of training.

After finishing all these tasks, Emperor Chongzhen turned his gaze to Guihua City.

　Thanks to Tianwaitian 007 for the reward!
　　I went home from get off work the day before yesterday and drank cold medicine. As a result, I couldn’t code all night. I went to the annual meeting yesterday and came home very late. I only had a chapter early. This chapter is now coded this morning, and it will be updated later. up.

　　
　
(End of this chapter)