Chapter 37: Industry and Capital

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The ground is raging and the molten iron in the smelting furnace is tumbling.

However, after pouring three furnaces of hot metal in a row, the purity of the black iron is only 95%, which may be slightly higher. According to the estimation of the strength of the identification light, it may reach more than 95.5%, but it is definitely not 96%.

Hundred feet is a step further, it sounds good, but it is even harder to go further! It's all over, how can we go further!

Zhang Shengye frowned slightly: "Let all the artisans of the family forge and purify, and you will get 10 tons of black iron in three days."

Zhang Hao shook his head: "Second Uncle, I think that the princess wants not only ten tons of black iron, but also what we want to see is our ability.

If we can’t even produce 96% of the black iron, what can we do to convince the princess that we can build a big ship that can cross the dead green sea! "

Zhang Shengye nodded thoughtfully.

Beside, Huang Mingshan said carefully: "Master, if you replace the ground fire with spirit stones and formations, and replace the inferior broken spirit stones with lower-grade spirit stones, I wonder if it can improve the purity?

I think that a considerable part of the impurities in the black iron comes from inferior broken spirit stones! "

Zhang Hao's eyes suddenly lighted up, "How can I forget this."

In fact, Zhang Hao did not forget, but deliberately did not say. He wants to train Huang Mingshan and others, and let them form a sense of active thinking, summarizing, learning, accumulating and progressing.

In the course of his homework just now, Zhang Hao repeatedly mentioned the scene of Fang Shi's open water forging technique.

The transformation started soon, and Huang Mingshan and others immediately began to calculate the approximate data.

"The purity of broken spirits varies, and the average aura content is about 18% of the lower spirits. And the impurities interfere, the effective aura of the broken spirits is only about 15% of the lower spirits."

"Crush the spirit stone to increase the effective contact area with the ore."

"After crushing the selected ore, choose the water again; 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 uneven. It is recommended to work with four fans at the same time, and the air volume is controlled at about one-quarter."

"Use low-level spirit stones to arrange the flame array method. The flame array method is calculated according to the formula in "Suan Jing", and the temperature is controlled above 2700 degrees."

"By the way, the air supply of the fan must be preheated by the flame array method before being passed into the molten iron to prevent the molten iron from cooling."

"There is a lot of dust here, and the smelting process is isolated by array method; the air of the fan needs to be filtered. Cotton is temporarily used as a filter layer."

Huang Mingshan, Bai Xiaodong and others were busy, and Zhang Hao looked beside him and smiled faintly.

Now, the Zhang family has initially got rid of the traditional handicraft model. In the production process, everyone began to pay attention to measurement and calculation, and summarized everything in a mathematical way.

Although the measurement technology is not perfect and the data is not accurate enough, the technology is finally sprouting and thriving.

What delights Zhang Hao most is the way everyone works, no longer accumulating experience, but starting directly from theory.

Air preheating, filtration, uniform air supply, crushing of ores and spirit stones, attention to controlling impurities from raw materials, etc.; all of these already have the consciousness of scientific production.

This is a qualitative leap.

In the middle of the night, a "refining workshop" appeared.

This is a ten-meter-square house. Four fans surround a smelting furnace. After water separation and drying, the ore powder and low-grade spirit stone powder, plus carefully selected bamboo charcoal powder are heated in the smelting furnace.

Below, the flame evoked by the spirit stone appears purple-gold. In this small space, the rolling heat wave makes Zhang Shengye a little uncomfortable. Zhang Hao, who was in the gas refining period, was sweating in the rain.

But no one complained!

Everyone has invested in this unprecedented research and production in an unprecedented spirit.

Rolling brown flue gas gushed out from above the smelting furnace, and then was taken away by the fan to be discharged to the outside world.

Above the Zhangjia smelting base, dozens of brown smoke plumes rolled into the air. In the early stages of industrial development, the ability to pollute the environment is directly proportional to industrial capacity and technological progress!

The world is so big, I want to... pollute it~~~

Time quietly came to dawn, and the first brand new molten iron finally no longer produced smoke. But the craftsmen did not immediately pour, but continued to heat and wait.

Because, there is one more step-precipitation!

The air volume began to slow down and gradually disappeared.

A gathering array is placed at the air inlet of the fan, and a small amount of aura is slowly input into the molten iron through the fan.

About one hour, or two hours, when the sun rose, Huang Mingshan ordered that iron ingots be poured.

At present, the smelting furnace of Zhangjia is very large. One furnace of molten iron can pour more than three tons of iron ingots.

It is still a half-meter square iron ingot.

Zhang Shengye couldn't wait for the iron ingot to cool automatically. He took a little bit from the molten iron and used the technique to cool down and identify it. A moment later, Zhang Shengye's mouth opened:

"Purity 97%~~~"

The voice was trembling, and it was a great success!

Zhang Hao was very calm, turned around and began to reward. This time the rewards are very generous, but fifty people and artisans, Zhang Hao rewarded 100,000 spirit stones in one go! An average of two thousand per person.

Two thousand spirit stones, equivalent to two million iron coins!

Although the iron coin is a little depreciated now, it is the kind of low-purity black iron coin that depreciates.

In the Zhang family, craftsmen can exchange a piece of spirit stone for 3000 low-purity black iron coins.

That's so capricious!

Our old Zhang family does not lack mysterious iron.

Because of the difficulty in smelting wrought iron, wrought iron is a resource for self-cultivation and has its own currency attribute, so the state encourages the private casting of currency.

As the Zhang family disclosed the water forging technique, the black iron market began to be unstable, and the low-end currency system dominated by black iron coins was also severely affected.

But last time the princess didn't say this, Zhang Hao naturally wouldn't ask for it.

The real greatness of resourcefulness lies in waiting for others to ask, and then you talk about it; so that others will know, oh, you are smart. Or, as a bargaining chip.

Moreover, the devaluation of Xuan Tie coin is of great benefit to the Zhang family. Now, the Zhang family is frantically coining, buying food, crushed spirit stones, wood charcoal, cloth, horses, etc.; even including fields, mines, etc.

Previously, the princess said that raw materials such as broken spirit stones were used 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, the average is only half of the market price!

The biggest cost of black iron smelting comes from ‘crushed spirit stone’. Although broken spirit stones are inferior spirit stones, they are also spirit stones. It is also very marketable for arranging formations, cultivating elixir, smelting, etc.

Now, the Zhang family purchases the broken spirit stone by their own coin method, and compresses the Zhang family's broken spirit stone cost by about half in one breath.

The Zhang family has a large amount of purchases and can further reduce prices.

The initial stage of capital expansion was savage and rude. The Zhang family is also inevitable.

…………

At noon, the three iron ingots finally cooled, but the craftsmen had already begun smelting the second furnace iron ingots.

The purity of the first furnace is 97%; at the beginning of the second furnace, the requirements are appropriately reduced, and finally it is controlled at 96%.

Zhang Hao leaned against the door, but his tired face was smiling.

Technology has finally blossomed;

The door of industry is slowly opening.

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