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The fire on the ground is raging, and the molten iron in the smelting furnace is rolling.
"However, after pouring three furnaces of molten iron in a row, the purity of the black iron is only about 95%, maybe a little higher. According to the intensity of the identification light, it may be more than 95.5%, but it will definitely not reach 96%.
It sounds nice to take a step forward, but taking a step further is even more difficult! It¡¯s all over, how can we go further!
Zhang Shengye frowned slightly: "Let all the craftsmen in the family forge and purify it. We will definitely get 10 tons of black iron in three days."
Zhang Hao shook his head: "Second uncle, I think what the princess wants is not just ten tons of black iron, but what she also wants to see is our ability.
"If we can't even produce 96% of black iron, how can we convince the princess that we can build a big ship, a big ship that can cross the Green Sea of ??Death!" "
Zhang Shengye nodded thoughtfully.
Next to him, Huang Mingshan said carefully: "Master, if you use spiritual stones and formations to replace the earth fire, and use low-level spiritual stones to replace the inferior broken spiritual stones, will the purity be improved?
I believe that a considerable part of the impurities in black iron come from inferior broken spirit stones! "
Zhang Hao¡¯s eyes suddenly lit up, ¡°Why did I forget this?¡±
In fact, Zhang Hao didn¡¯t forget, but deliberately didn¡¯t say it. He wants to train Huang Mingshan and others to develop a sense of active thinking, summarizing, learning, accumulation and progress.
During the work just now, Zhang Hao repeatedly mentioned the scene of public water forging in the city.
The transformation started soon, and Huang Mingshan and others immediately began to calculate approximate data.
"The purity of broken spiritual stones varies, and the average spiritual energy content is about 18% of low-level spiritual stones. Due to the interference of impurities, the effective spiritual energy of broken spiritual stones is only about 15% of low-level spiritual stones."
"Crush the spirit stone to increase the effective contact area with the ore."
¡°After crushing the selected ore, select it again with water to increase the purity of the iron ore.¡±
¡°Use bamboo charcoal instead of charcoal to further reduce the impurity content.¡±
"Although the air volume of one fan is sufficient, it is not uniform. It is recommended to use four fans to operate at the same time and control the air volume to about one-quarter."
"Use low-level spiritual stones to arrange the flame formation. The flame formation is calculated according to the formula in "Sustainable Scripture", and the temperature is controlled above 2700 degrees."
"By the way, the air supply from the fan must be preheated by the flame array before being passed into the molten iron to prevent the molten iron from cooling down."
"There is a lot of dust here, and the smelting process is isolated using arrays; the air from the fan needs to be filtered. Cotton is temporarily used as a filter layer."
Huang Mingshan, Bai Xiaodong and others were busy, Zhang Hao looked on and smiled lightly.
Now, the Zhang family has initially gotten rid of the traditional handicraft industry model. During the production process, everyone began to pay attention to measurement and calculation, and summarized everything using mathematical methods.
Although the measurement technology is not perfect yet and the data is not accurate enough, the technology has finally sprouted and is growing vigorously.
What makes Zhang Hao most happy is the way everyone works, no longer through experience accumulation, but directly starting from theory.
Air preheating, filtration, uniform air supply, crushing of ores and spiritual stones, attention to controlling impurities from raw materials, etc.; all of this has the awareness of scientific production.
This is a qualitative leap.
After being busy until midnight, a "refining workshop" appeared.
This is a ten-meter-square house with four fans surrounding a smelting furnace. Water-selected and dried ore powder and low-grade spiritual stone powder, plus carefully selected bamboo charcoal powder, are heated in the smelting furnace.
Below, the flames activated by the spirit stone turned purple-gold. In this small space, the rolling heat wave made Zhang Shengye feel a little uncomfortable. Zhang Hao and others who were in the Qi refining stage were sweating profusely.
But no one complained!
We have invested in this unprecedented research and production with unprecedented spirit.
The billowing brown smoke gushes out from above the smelting furnace, is then sucked away by the fan and discharged to the outside world.
¡°Above the Zhang family¡¯s smelting base, more than a dozen brown smoke pillars billowed into the sky. In the early days of industrial development, the ability to pollute the environment was directly proportional to industrial production capacity and technological progress!
The world is so big, I want to pollute it~~~
Time quietly came to dawn, and the first batch of brand new molten iron finally stopped producing smoke. But the craftsmen did not pour it immediately, but continued to heat and wait.
Because, there is one more step - precipitation!
The air volume began to slow down and gradually almost disappeared.??
A spirit-gathering array is placed at the air inlet of the fan, and a small amount of spiritual energy is slowly input into the molten iron through the fan.
¡°About an hour, that is, more than two hours, when the sun rose, Huang Mingshan gave the order to pour the iron ingots.
Now, the Zhang family¡¯s smelting furnace is very large, and one furnace of molten iron can pour more than three tons of iron ingots.
It is still an iron ingot half a meter square.
Zhang Shengye couldn¡¯t wait for the iron ingot to cool down automatically. He took some from the molten iron and used magic to cool it down and identify it. After a moment, Zhang Shengye opened his mouth:
¡°Purity 97%~~~¡±
The voice was trembling, it was a success, a huge success!
Zhang Hao was very calm and turned around to reward. This time the reward was very generous, but Zhang Hao rewarded only fifty people and craftsmen with 100,000 spirit stones in one breath! The average is two thousand per person.
Two thousand spiritual stones are equivalent to two million iron coins!
Although iron coins have depreciated a bit now, it is the low-purity black iron coins that have depreciated.
In the Zhang family, craftsmen can exchange a piece of spiritual stone for 3,000 low-purity black iron coins.
It¡¯s so willful!
We, the old Zhang family, have no shortage of black iron.
Because black iron is difficult to smelt, black iron is both a spiritual resource and has its own currency properties, so the state encourages private coinage.
With the Zhang family's disclosure of water forging, the black iron market became unstable, and the low-end currency system dominated by black iron coins also suffered a serious impact.
¡°But the princess didn¡¯t mention this last time, so Zhang Hao naturally wouldn¡¯t bring trouble on himself.
The real greatness of resourcefulness is that you wait until others ask before you ask; only in this way can others know that you are the smart one. Or, take it out as a bargaining chip.
Besides, the depreciation of Xuantie coins will be of great benefit to the Zhang family. Now, the Zhang family is frantically minting coins to buy grain, broken spiritual stones, wood, charcoal, cloth, horses, etc.; even fields, mines, etc.
Previously, the princess said that she would use broken spirit stones and other raw materials in exchange for the Zhang family¡¯s black iron. Why did Zhang Hao refuse? Not only because the princess insists on the 'market price', but also because the Zhang family can mint coins themselves, and the average price is only half of the market price!
The biggest cost in black iron smelting comes from the ¡®crushed spirit stone¡¯. Although the broken spirit stone is a low-quality spirit stone, it is still a spirit stone. It is used to arrange formations, cultivate elixirs, smelt, etc., and it is also very marketable.
Now, the Zhang family uses their own coinage to purchase broken spirit stones, reducing the cost of the Zhang family's broken spirit stones by about half in one breath.
? And the Zhang family has a large purchase volume and can further lower the price.
In the early stages of capital expansion, it was barbaric and rough. The Zhang family is also inevitable.
¡¡¡¡
At noon, the three iron ingots finally cooled down, but the craftsmen had already begun to smelt the second iron ingot.
The purity of the first furnace was 97%; starting from the second furnace, the requirements were appropriately lowered and finally controlled at 96%.
Zhang Hao leaned against the door, with a smile on his tired face.
Technology has finally blossomed;
The door to industry is slowly opening. (Remember the website address: www.hlnovel.com