Calling it a rest, Han Qian couldn't sleep when he returned to the inner courtyard. He took out a pen and paper to ponder the internal structure of the lever bellows.
Although he threw the problem to Chen Jitang and the others, his main purpose was to force Chen Jitang and the others to think deeply and help them break the shackles of sticking to the rules. However, he did not expect them to really be able to complete the lever blast box and the fire oil tank within two days.
I want to understand its internal structure.
Otherwise, if Chen Jitang and the others were not clear-headed for a day, Han Qian would not let the lever blower box and the fierce fire oil tank come out for a day?
Xi Rong was not interested in the construction work, so she went back to the house to sleep, leaving Zhao Ting'er, a charming little fairy, to stay up late with Han Qian.
She wanted to see when Han Qian would not be able to resist and eat the meat and bones of this alluring little goblin, so that the little goblin would not show off his power to her at every turn.
In addition to using a one-way valve to control the entry and exit of the wind, the inside of the tie-rod blower box also uses a tie-rod plate piston to simulate the extrusion of the wind blade.
Once the Tao is understood, the internal structure is not complicated.
The structure of the so-called water collector and high-fire oil tank is similar to that of the tie-rod blast box. It mainly controls the entry and exit of wind, instead of controlling the entry and exit of liquids such as water and high-fire oil.
If there are other differences, they are in material selection and external shape.
The blast box does not pay attention to strict closing, and it does not matter if the water collector has some small leaks. However, if the Menghuo oil tank leaks, flammable oil will leak everywhere, and the hidden danger will be great.
In addition to the tie-rod bellows, Han Qian also had to consider the structure of the new forge and the structure of the wind-powered forging hammer.
The four fields of Yandangji are flat and wide, and there are no streams with high heights, which provide convenient conditions for the use of hydraulic equipment. However, the wind is strong. On the basis of building water mills, coal crushers, water mills, and water drainage in Qiuhushan Villa, tarpaulins were used to build
Since the forging hammer is connected to the rotating shaft of the windmill, there is actually no insurmountable technical difficulty in this world.
The vertical sail windmill and wind-powered forging hammer do not seem to be technically difficult to implement, but their structures are much more complex than those of the blast box.
In today's world, all parts must be forged by hand, and it cannot be made in three to five days. However, the new forging furnace proposed by Han Qian, compared with the old hand forging furnace, only adds a relatively refractory and strong furnace top, and re-
It's just a flue design.
The main purpose of doing this is to semi-close the work tank and reduce the heat source from escaping in vain as much as possible.
Han Qian explained the relevant principles to Zhao Ting'er thoroughly, and Zhao Ting'er would help him with the drawing, so that he could save a lot of things.
The third prince could not stay outside the city for a long time. The Ministry of Internal Affairs sent someone to urge him early the next morning, and he had to go back to the city before noon. However, he remembered to ask Zhang Ping to cross the river with the list of slaves from Yongchun Palace to see Han Qian, and asked him to come here from
The manor selected twenty households of slaves as additional rewards.
It was impossible for Han Qian to call all the 900 households of slaves to him and look at them one by one. He could only select 20 households based on the achievements or reputation of his father's generation. That afternoon, Zhang Ping selected 20 households and 120 households.
Seventeen slaves were sent to Yandangji Farm by boat.
There was not enough accommodation in the manor's courtyard, and since they were slaves, they had to make do with shacks.
In addition to supplementing the wine steaming house, forging house, house construction team and boat gang, these people also gathered an additional ten strong laborers to dig ditches and reclaim the polder on the north side of the existing paddy fields, and try to retreat in autumn.
After watering, one or two hundred acres of wheat can be grown.
Han Qian gave Chen Jitang and the Du brothers a difficult problem, but only Chen Jitang came up with a solution two days later.
Although the plan given by Chen Jitang is far different from the blast box designed by Han Qian himself, and is quite complicated, the fact that he can manually blow air into the furnace is enough to prove that what he learned from his family is indeed true.
If not for the drastic change, his life would not be as famous as his father's because of the Siming Mountain Weir. Han Qian secretly felt that Chen Jitang's future achievements may not be as good as those of Liyang Marquis Yang En.
Han Qian finally assigned the Du brothers to go to the Jinyun Tower of the county prince's mansion every day to help him copy and search for books - this was also an in-depth learning process for the Du brothers.
Han Qian made Chen Jitang serve as the chief engineer of Yandangji, while Zhao Qi assisted Mr. Zhao in the specific management of the slaves and the handling of complicated affairs in the farm.
Anyway, the manor and courtyard are all servants and slaves of his Han family. No one can comment on who Han Qian assigns to do things.
Han Qian stayed in Yandangji for the next few days and personally supervised the construction of a new forge in the newly built enclosure.
Limited by the shortcomings of the current construction materials, Han Qian did not dare to build a large furnace rashly. At least he would not spend huge sums of money to build a large furnace in Yandangji. Finally, the semi-enclosed chamber working chamber of the new furnace was controlled to three
Within feet.
In this case, although large steel parts cannot be made, and three steel parts are even needed to assemble a complete steel crossbow, the risk of furnace collapse can be greatly reduced.
At present, it is sufficient as a test furnace.
Draw the drawing of the drawbar bellows, and it will be easier to build it with a skilled carpenter.
On August 3rd, the new furnace in Yandangji, which was about one person tall, was officially lit. Seeing the flame rising from a pile of charcoal, it soon turned pure blue, and the Han family craftsman was so excited that he jumped up.
How could they expect such a simple transformation to make such a big change?
At that time, the main method was to look at the changes in fire color and roughly estimate the flame temperature.
It is often said that the fire is pure green. In fact, if the smelting process in this world can burn the flame to pure green, it is already the ultimate.
This is almost a common sense that all craftsmen in the world have. Only at this time can the pig iron be quickly melted into molten iron.
As for the hand-forged furnace built in the adobe house before, it was impossible to burn the flame to a pure blue color. The speed at which the pig iron rod was heated naturally took people's patience into consideration.
Now the flame temperature can be raised so quickly and maintained there stably. Whether it is frying steel or forging steel parts, the speed is several times faster than the old method!
Of course, just building a semi-enclosed chamber forge and blast box does not mean everything will be fine.
Currently, there is no effective way to detect carbon content and impurities, let alone precise testing instruments.
The extent to which steel parts are forged, as well as the selection of pig iron materials, iron ore and even quenching materials and methods can only be explored step by step. Only by constant comparison in practice can sufficient experience be accumulated.
It may take a long time to fumble before you can stably forge steel products with excellent performance.
The iron ore produced in each place will also have a relatively independent set of smelting, casting and even quenching methods. This is mainly related to the fact that the iron ore in different places has relatively stable impurity types and contents.
Of course, Xuzhou also produced iron ore. After the new forge was built, Han Qian appointed Chen Jitang and the Han family craftsmen to temporarily use only a few pig iron materials produced in Xuzhou to explore ways to forge steel parts.
In this way, on the one hand, it can continue to expand the scale of trade shipping between Jinling and Xuzhou; on the other hand, even if the final forging method is leaked, it can ensure that the origin of iron ore and pig iron materials is only
It could be Xuzhou.
Although it is not expected that extremely demanding steel parts such as fine steel bow arms can be forged soon, crude steel for casting farm tools is enough.
In autumn, the farm will dig ditches and build polder embankments. It plans to reclaim more than 100 acres of polder land and build three or five courtyards to have enough space for the Xuzhou Boat Gang to berth in Jinling.
The base originally needed to purchase farm tools, craftsmanship tools, etc. from outside, but now it can be built by itself using the new forge.
By doing this, you can get direct feedback on the quality of the tools you cast and craftsmen make.
"Jin, a brick knife sold in the city of Jinling costs 200 yuan, but the profit is only thirty or forty yuan. However, the new furnace you built is a brick knife. Jitang has calculated that it only costs 70 yuan. Wait.
The sails were made by the wind, and hammering and forging were more labor-intensive, and the cost was even lower. From now on, even if the village specializes in casting farm tools, it will be a huge profit." Chen Jitang supervised the craftsmen who made farm tools and craftsman's tools for two days, and it was very profitable.
I quickly calculated the consumables and labor consumption of the new forge, and if I continue to research and improve the quality in the future, the cost will only be lower.
The salt and iron monopoly has been in effect since the Han Dynasty, and even today, salt and iron are also treated as both salt and iron.
However, due to the wide spread of iron smelting among the people, the imperial court did not have a monopoly on the iron smelting industry since almost the end of the Han Dynasty. Therefore, unlike the salt monopoly system, Da Chu's control over the iron industry mainly involved imposing iron taxes and imposing iron taxes.
There are no restrictions on private mining, iron smelting or iron casting, and the management is much looser than that of wine tasting, which is comparable to tea medicine and other industries.
Chen Jitang's meaning was very clear. He suggested that Yandangji apply for an official license to set up an iron farm. With the support of the county and prince's government in the future, even if it only forges farm tools for sale, it should soon become the largest iron farm in Jinling City.
Han Qian smiled slightly and said to Chen Jitang, who was quite economically minded: "It is not appropriate to spread the new forge for the time being. If you have time to spare, maybe you can help me figure out what parts inside the sailboat can be replaced by steel parts.
.In the forging room, in addition to trial-making fine steel bow arms, we will mainly forge a batch of marine steel parts for our own use!"
Large-scale iron yards still need to make full use of water resources, and the situation in Jinling in two or three years is uncertain. Even if a large-scale iron yard is to be built at this time, Han Qian will only place it in Xuzhou.
He doesn't want to make any big moves at the moment. What he wants to do more is to work out a mature smelting and forging method based on the iron ore and pig iron materials produced in Xuzhou, and then create a batch of ship steel on a small scale.
Structural parts so that the ship's gang can have a stronger, sturdier but lighter warship.
Compared with the Scorpion Cannon bomb attack, if a stronger warship can be built and the advantage of the hull is directly used for collision, the deterrence and destructive power will be stronger in water battles.
This was clearly demonstrated when Yang Qin and others used warships to attack Liang Jun's naval fleet when they were defending Xichuan - the civilian ships requisitioned by Liang Jun's navy in Jingxiang were too fragile, otherwise the battle between Jingxiang and Jingxiang would not have been so
Easy to end early.
But now that so many people are staring at him, if Han Qian really wants to build a large-scale iron farm directly, how can he keep the new smelting and forging technology a secret?
At this time, the forging house only uses members of the Han family, and slaves are enough. Han Qian not only has the right to restrict their entry and exit, but also restricts their contact with outsiders and strictly controls them. Once a large iron yard is built,
It is necessary to hire a large number of craftsmen and craftsmen from outside. Who knows how many informants will be inserted into it?
Han Qian and Chen Jitang were chatting about his ideas about marine steel parts and the principle of buoyancy. It would be difficult for others to understand that an iron block floats on water, but Chen Jitang's thinking is open-minded and many things can be understood at one point. This is even
They are even better than Ji Xiyao and Zhao Ting'er.
At this time, Mr. Zhao walked in and reported: "The county prince's office has proposed that Mr. Zheng come and pay homage to the young master."
"Ah? What is he going to do here?" Han Qian was slightly startled.
Han Qian thought about the wine steaming method that he was willing to reveal to the Zheng family. With Zheng Hui's eyesight, it should not be difficult to figure out the key points after reading it. It was also impossible to think that there are some key technical methods hidden here. Then Zheng Hui
Why do you want to come here alone to see me?
Besides, although he is a little lazy now, he will make sure to go to the Prince's Mansion every two days to attend. If Zheng Hui has anything to say, he can tell him at the Prince's Mansion.
"Master Zheng didn't send someone to deliver the message. He has already come to Zhuangzi in person." Seeing that Han Qian was distracted, Mr. Zhao reminded him.
"Ah! He must be an uninvited guest!" Han Qian didn't expect that Zheng Hui had already arrived at Yandangji, so he followed Chen Jitang and Zhao Laoguan out to meet Zheng Hui.