Biandu City South Annex.

Under a shed, there was a huge metal beast, which was trembling and roaring at the moment, and from time to time it swallowed clouds and mist, and even flashed with fire, like a monster of myths and legends.

"Master Hou!"

"I've seen Master Hou!"

……

Lotte came to the courtyard with the shakushichi Tuyu, and the guards and craftsmen in the courtyard hurriedly saluted.

After nodding his head, Lotte went straight to the running steam engine, and looked at the first three-cylinder three-expansion steam engine in this time and space in front of him.

Obviously, with this design of the steam engine, the original design of the steam engine was more suitable for navigation, more powerful and more fuel-efficient.

In front of this steam engine, a group of craftsmen are closely watching every step of the steam engine. Among these people, there is a figure that is very conspicuous, because this figure is the youngest and the youngest among the people.

Bear Child, the son of the bear steward, was the first to propose the idea of a three-cylinder steam engine after being proposed by Rakuten.

Because of the loud roar of the steam engine, Lotte had to amplify his voice as much as possible: "How long has this steam engine been running?" ”

It wasn't until he heard Lotte's words that the bear steward knew that Lotte was coming, and he hurriedly bowed down to salute, and immediately replied: "If you go back to the Hou Ye, this machine has been running for two days and two nights......

However, just as Steward Xiong's words fell, the roaring steam engine suddenly made a muffled "bang", and something collapsed from the steam, followed by a burst of hot gas, and the moving connecting rod slowed down more and more until it was running half-dead.

"Failed again......"

Seeing such a scene in front of him, the bear child cried out in distress.

At the same time, a group of people were busy shoveling the burning coal out of the boiler so as not to damage the steam engine.

Coming to the bear child, Lotte patted the bear child on the shoulder and said with a smile: "Failure is the mother of success, don't be discouraged!" ”

"Master Hou......" Seeing Lotte, the bear child felt very aggrieved.

"There is no such thing as a failure!" Lotte comforted and asked, "What caused the failure?" ”

Steward Xiong said loudly: "Master Hou, let's go out and talk, there is too much noise here......

Lotte nodded and took the bear child out on a layout.

"You guys take care of this and double-check where the steam engine is wrong!" Steward Xiong explained to the craftsmen and miscellaneous workers, and after speaking, he also came out with a few technical backbones behind Lotte.

After coming out, Steward Xiong said: "Master Hou, according to a small conjecture, it is because the structure of the three-cylinder steam engine is complex, and the steam pressure is extremely high to drive the machine to operate, and the three-cylinder steam engine is not as easy to control the pressure as the single-cylinder steam engine, and the valve or air plug is often pushed out because of the excessive steam pressure. ”

Lotte understands that there is no steam pressure gauge in this era, and I don't know what the steam pressure of the steam engine boiler is, and the ordinary single-cylinder engine is easy to control, and the pressure required for the three-cylinder steam engine is far higher than that of the single-cylinder steam engine in order to improve the heat utilization rate, and the high steam pressure also means high risk, and the fryer is not impossible.

Since the bear child said that the steam engine with the concept of three cylinders of the size was adopted, after repeated drawings by a group of craftsmen, the wooden components were made and the feasibility was repeatedly verified, so that the style of the three-cylinder steam engine could be formed.

After thinking for a moment, Lotte asked again: "Not to mention the pressure, what is the strength of the steel we produce ourselves, can we ensure the structural strength and fatigue resistance of the metal with a high degree of movement of the steam engine?" ”

Steward Xiong replied confidently: "Please rest assured that the steel we produce is carburized according to the carburizing method that Hou Ye said, and the hydrodynamic forging hammer saves a lot of effort. ”

Structural strength, metal fatigue resistance, and carbonization method were all proposed by Lotte, and then explained to the craftsmen, and now the craftsmen in the courtyard are confident that the craftsmanship of these people is absolutely unique in the world, and it is not at all comparable to those blacksmiths outside.

Even after hearing about the steam engine, many blacksmiths near Biandu came to visit and study in the annex. In ancient times, craftsmen were hiding from each other for fear that their crafts would be learned, and these blacksmiths were afraid that the master would not let them visit, but Lotte was very generous to let go of these blacksmiths after verifying their identities, and these blacksmiths indulged in the meantime and took the initiative to stay in the courtyard to work.

Now that Lotte wants to expand its industry, it is when there is a shortage of manpower, these blacksmiths have this demand, and Lotte naturally can't ask for it, so these blacksmiths stay in the courtyard to work.

Lotte was most worried about the quality of steel, and when he got Xiong's answer, he was very satisfied, and then said: "I think of a thing, you try to make it, and I think it can solve the problem of steam pressure in the boiler!" ”

Since making this three-cylinder three-expansion steam engine, a group of craftsmen feel that the most tricky thing is how to solve the pressure problem.

Holding a homemade pencil, Lotte drew the appearance of the pressure gauge and explained its principle to the blacksmiths, after all, the principle of the pressure gauge is very simple, but it takes some time to work.

Three-cylinder three-expansion steam engine, Lotte only mentioned a multi-cylinder concept, but the bear child can think of using the size of the three cylinders to cleverly drive the cylinder activity, this kind of talent for machinery is not possessed by others, although the bear child on the three-cylinder steam engine is only put forward an idea, the specific operation is still completed by a group of craftsmen, but the bear child's excellence is undeniable.

Since ancient times, children in China studied either for the imperial examination or to manage the family business, and very few children under this kind of education had scientific talents who were proficient in arithmetic and machinery, and it was this kind of partial education that made China gradually lag behind the West in the 17th century.

Therefore, Lotte is even more determined to change the teaching method of the Great Song Dynasty, reduce the number of people by half, and increase mathematics, physics and chemistry and science with a cognitive spirit of nature.

"Master Hou, it's time!" After Lotte finished drawing the gas pressure gauge and explained it again, the shakuchi next to him came over and urged: "According to your itinerary today, you will visit the courtyard in the afternoon, and you will go to the Empire State Building construction site in the afternoon, and you can only eat in the car." ”

After being reminded by shakuchi, Lotte nodded, remembered the matter of the Empire State Building again, and asked instead, "Have you prepared the steel bars I told you to prepare?" ”

Steward Xiong's face was difficult: "The small steel bars that Hou Ye wants dare not be lazy, but the demand is too great, and the small ones are understaffed here, so they really can't complete the tasks handed over by Hou Ye on time." ”

"It's really hard for you to build a steam engine and try to make a new type of steam engine, and to make steel bars according to Le's requirements!" Hearing this, Lotte also sighed, and then ordered: "Steward Xiong, continue to recruit blacksmiths, even classmates and apprentices, when to recruit a thousand people." ”

"Yes!" Steward Xiong hurriedly replied and continued: "Master Hou, the magnet mine you want will arrive in Biandu in a few days, come and know what to do with Master Hou?" ”

Lotte said: "The magnet mine was transported to Biandu and sent someone to the house to inform Le Mou, and then Le Mou will talk about its use!" ”

After reading the model of the generator, under his own explanation, Steward Xiong has just learned the principle of electromagnetic induction, and he does not have the knowledge of electricity, and making electric lamps is a very difficult thing, and before the filament material is not solved, Lotte is not in a hurry at this time.

Before, Lotte just released the news, saying that to sell a luxury cruise ship powered by a steam engine, there are many wealthy people to order, expanding the scale of the industry is imperative, think about the future of a large factory at every turn tens of thousands of people, now there are only hundreds of craftsmen in the courtyard, obviously not with the development of production scale.

And the steel bars needed by Lotte to build the empire of Daxia also need to be multiplied by quality, otherwise how can it support a building tens of meters high, and the building built by the unconscionable contractor in later generations is brittle and the building collapses, Lotte has not heard of it, and how can it smash its own signboard.

……

New Bridge in the Outer City of Biandu.

Although it is autumn, the sun is still a little poisonous, in a piece of land covering an area of several acres, more than 100 laborers are wielding tools, and the ground is dug out of a pit a few feet deep.

The pedestrians who came over did not understand, they all knew that a building was going to be built here, but they had never seen such a building, and the ground had dug a big pit a little deep, and in order to continue digging, the whole Biandu people were very incomprehensible.

Of course, dozens of floors of buildings have to lay foundations, although there are hands and reinforced concrete, but after all, the technical power of this era is still limited, so Lotte can only use the most stupid method to build a house. According to Lotte's plan, in order to make the foundation firm, the entire several acres of foundation is cast into a whole with reinforced concrete, because the pressure area is large, so that it will not lead to a series of adverse effects such as foundation subsidence or house cracking in the future, making the house become a dangerous building.

Although there were no cranes, excavators, cranes and other advanced machinery and equipment in this era, the Chinese ancestors had enough wisdom to solve these problems, otherwise how the Xi'an Big Wild Goose Pagoda and Kaifeng Iron Tower were built, compared to the height of the two, the imperial Bactria was still slightly shorter.

Lotte calculated the progress of the project, according to the current progress of the project, the ground can be dug in August, and then the ground will be tamped, and then the steel structure will be arranged, and even Lotte has planned to strengthen the structural strength of the steel bar in order to strengthen the steel bar when laying the steel bar, wrap the intersecting steel bar with burnt iron juice to increase the structural strength.

This is also no way, later generations in the construction of high-rise buildings when the steel bars intersect are welded to death, in the Northern Song Dynasty in this era there is no electric welding machine, can only use this soil method to do.

This is just one of the problems encountered by Lotte, in addition to the use of later generations of pouring technology, for which Lotte specially hired carpenters to make a batch of wooden planks for pouring floors and load-bearing beams and columns, after all, the manufacturing of iron formwork is too long and the cost is high, and the wood formwork is not only relatively simple to make in the effect is also the same.

After reading the drawings designed by Lotte, the officials of the Ministry of Works did not understand why Lotte designed a straight chimney-like passage for the professional door near the staircase.

Elevators, the future generations have never heard of such things, now large motors are still only drawings and models, Lotte is too lazy to explain to these people, and leave a space for installation first. Even Lotte has an alternative, that is, it can't make an elevator, and it's not impossible to use a steam engine to drive the elevator.

"Master Hou, Your Majesty ordered the second attack this morning!" Tu Si found Lotte at the construction site and said.

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