"Your token is also made in the same way. In the forging process, we found that although the forged steel castings are very strong and of very good quality, they can only be manually operated, so the forged castings are not very accurate."

"Later we thought of the mold. If the anvil below is replaced with a mold, the ingot will be squeezed and forged in the front, and then placed on the anvil below which is the mold below and squeezed again. In this way, it can directly forge the shape required by the mold, and also ensure accuracy!"

Lu Feng immediately explained to Huo Gang while walking forward with Huo Gang.

Very good. Even the mold forging has been played. Huo Gang no longer knows how to complain about it. No wonder he thinks that the token is a bit weird, because the steel style of the token and the protruding character Huo on it do not look like it is poured from a mold.

It turned out to be forged directly from mold forging, no wonder.

Huo Gang didn't know what to say, because of these tall steel castings, Huo Gang always felt an inexplicable and weird feeling. You said that he had not even been able to play the steam engine here, but now he even played the free water pressure forging and die forging... This, even if the Spirit of the Yumen has no other rewards, all the countries around him are going to call for cheating.

The armor made of the armor made by the die forging... This is not the same level as the armor of other countries. Not to mention that other shields can be used in steel.

"But later we made some improvements, because we found that if we were to forging the mold at one time, our pressure would not be enough now, so we adopted the method of starting from shallow to deep. That is, at the beginning, we made the mold a little shallower, and then gradually deepen it until it was finally formed. We don't know if this is correct, so we also ask the leader for advice." Lu Feng said seriously.

Huo Gang: "..." I'll give you a lesson. The mold forging method after more than a thousand years is also forged in this way. It's just that the mold forging efficiency after a thousand years is dozens of times higher than yours, and then there is a difference in power. However, the overall process and principle are exactly the same, and there is no difference.

"Well, you did a good job. I didn't expect that you have already developed free forging and die forging forging for yourself." Huo Gang nodded and said, "I can only tell you the principles of these things, because only what you have developed by yourself is what you have learned by yourself."

"After I tell you the principles, aren't you learning very well now? All these things are developed by you yourself. In this process, you are constantly understanding the world and these principles." Huo Gang said seriously.

"Yes, my subordinates remember it, thank you for your teachings." Lu Feng also bent down and saluted Huo Gang with a serious expression.

"Well, okay, now you just need to continuously improve the hydraulic power method, and this hydraulic can be used in other different aspects." Huo Gang said.

"Yes." Lu Feng nodded immediately, "Do you want to see our new steam engine? We already have some ideas."

"Yes." Huo Gang nodded. He wanted to see how Lu Feng and the others could improve the steam engine.

Lu Feng immediately took Huo Gang towards their residence. When he arrived here, Lu Mu and the others arrived and entered the room. Huo Gang immediately discovered that the walls on all sides were hung with various drawings.

Huo Gang couldn't understand many of these drawings. In the center of this room, there was a strip-shaped wooden table more than ten meters long, and the entire wooden table was filled with different drawings, etc.

The most eye-catching thing is that a model carved out of wood is placed on a table. The entire model is about two meters long and one meter high.

The most eye-catching thing next to the model is the huge steel wheel. If you look at this steel wheel simply, it is almost not much different from the advanced steam engines in later generations.

"Chief, this is our improved steam engine. Its power output structure is better after our calculations." Lu Feng pointed to the circular transmission wheel opening, "because this rotary output method can be used with many structures, such as directly connecting it with a spinning machine with gears, belts, etc., the spinning machine will have more power."

"In addition, its power can be placed in many places. Before, everyone thought about whether to build a four-wheeled large carriage, put the steam engine on the carriage, and then directly drive the wheels from this wheel. In this way, its strength will become very strong. However... Later, considering that it needs to continuously add fuel, and the steel castings used to make it are too heavy for the wheels to support it." Lu Feng shrugged again.

Huo Gang: "..."

Huo Gang subconsciously turned his gaze to Rumu next to him. Rumu immediately scratched his head with some embarrassment and said, "Sorry, the leader, I'm just a whimsical idea."

"Rumu." Huo Gang took a deep breath, whimsical? All I need is your whimsical!

"I'm here." Rumu immediately spoke.

"Don't have such an idea." Huo Gang looked at him seriously and then looked at other craftsmen, and then said to them: "This is not whimsical, to be precise, this is called scientific research, because all the progress of human civilization comes from this whimsical. Just like the principle of hydraulics, it is whimsical before I tell you."

"But now, you can use it to forge one or two hundred kilograms of steel castings. It was impossible for you before." Huo Gang looked at them and said.

"So, I need you to be so whimsical."

"And, you are not a fantasy. You can tell me the principle of this steam engine first, and I will tell you some of my thoughts." Huo Gang pointed to the steam engine on the table and said.

"Yes, the leader actually has our biggest improvement. In the past, steam pushes the internal pistons only work in a single time. In this way, it does not utilize steam enough. This time we made two steam chambers and two pistons of both size and size."

"The large piston is set in the steam chamber below. When the steam enters, it will push the piston to the left. When the piston moves to the left, a connecting rod connected by the rotating steel wheel in front just pulls the small piston above. The small piston moves to the right, closes the steam inlet on the right, opens the steam inlet on the left, and enters the piston chamber at the lower left, and then pushes the large piston to the right."

"In this way, the large piston will work in two-way ways and the steam utilization efficiency will be higher! The output power will be greater." Lu Feng explained quickly.

Listening to Lu Feng's explanation, Huo Gang couldn't help but applaud them. Really, the abilities of these craftsmen were beyond Huo Gang's imagination. He didn't know how they had gone from the initial improvement to this point. And from their speeches, it was obvious that they had carefully studied the primary physics and primary chemistry that Huo Gang gave them.

All the words said have already had the initial style of engineers in later generations. Although they are still far from each other, this has already started an excellent start! It can only be said that Lu Feng and others may have brought out the most outstanding group of craftsmen in the Central Plains back then.

These people were originally very smart. Now Huo Gang can be said to have activated their enthusiasm for creation and invention. When these already excellent craftsmen threw all their states on it, Huo Gang knew very well how terrifying this was.

The craftsmen of this era could not resist the temptation of being famous for their generations. People like Rumu thought that he might be worshipped together with his ancestor Luban hundreds of years later. You can imagine how Lumu felt.

"You are good, really good. What you have made has exceeded my imagination." Huo Gang took a deep breath. "The improved steam engine can be used on many large industrial machines. I think you should all know what it means, such as the stone mill and iron mill for cement grinding now. If you use a steam engine instead, how much efficiency can it improve."

"Yes, Miss Donglan has calculated for us. If we build some large iron mills after such a steam engine is developed, the cement grinding speed may be more than ten times faster, and it can be continuously worked for twenty-four hours."

"In this way, the cement we built on the road will not be insufficient." Lu Feng said excitedly.

"Haha, it's not bad, but I'll tell you a new way to grind cement later. You can try it when you develop this steam engine." Huo Gang nodded, then pointed to the steam engine and continued to ask: "What is the actual size of this one?"

"Our production is based on a two-to-one ratio. The length is about 4 meters and the height is more than 2 meters. If the boiler is added, the length will be about 6 meters." Lu Feng immediately gave the answer.

"Chief, this is also the reason why I gave up my previous idea. The weight of it was made was too heavy, probably weighing more than ten or twenty tons, so it was impossible to go on the road." Rumu next to him said embarrassedly.

"No, since you said it, let's talk about this. If you make this, what if these two large driving wheels drive a row of small iron wheels below?" Huo Gang pointed to the steam engine and spoke.
Chapter completed!