The Chinese blacksmiths used willow sticks to stir, and while stirring, they would gradually burn off the willow sticks, which could mix carbon into the pig iron, or reduce the rate of decarbonization of the pig iron.

It can be seen that before the arrival of the first industrial revolution, the science and technology of China and Europe were not much different, and even a little ahead.

Now Wang Xiaoqi's blacksmith shop even has the opportunity to fry medium carbon steel and high carbon steel, which is called fried steel.

He saw that Wang Tiezhu was adding coal to the iron furnace, Xu Feng's manpower blower was running again, and the furnace fire was lit up again, and the fire burned more violently!

Zhao Xiong's knowledge of physics and chemistry in high school is very solid, and he knows that the furnace temperature of iron and steel is not enough, whether it is fried steel or fried iron, it is semi-solid pasty steel and iron.

Because it is only when the steel is heated to a liquid state that the ratio of carbon to other elements in it can be controlled freely and precisely.

In ancient times, it was impossible to accurately regulate the forged steel, filled steel, and even wrought iron carburizing steel, and the quality was uneven, all because of the problem of temperature.

As for how to regulate the temperature, it is necessary to use "coal coke." ”

Zhao Xiong, who graduated from science and engineering, still has some experience in how to choose coal, use and dig coke!

It's just that it's all in books, and once it's actually in operation, it's estimated that it's blind.

How to control it accurately, it is estimated that it will have to be implemented by a family heirloom like my aunt.

It's easy to make iron, but it's hard to make steel.

Between steel and iron, there is a huge difference in status.

Iron smelting is easy, but steelmaking requires more than 10 times more manpower and material resources than smelting.

As a result, the process of steel filling, 100 steel making and so on has been formed.

However, in fact, there are many impurities in the steel produced by the "steel copying method", and the steel quality is not ideal.

Wang Xiaoqi and the blacksmiths looked at his Tang Heng knife and believed that it was "real steel", and even raised the level of belief of the blacksmiths.

The difference between the little aunt and Wang Xiaoqi and their own intelligence is not very obvious, and the difference mainly lies in the reserve of knowledge and the broadness of vision.

The little aunt looked at him and said softly, "You really want to build a small blast furnace!" ”

"Hmm"

"Then I'll stay in town and never go back to town!"

"You're not really interested in it, are you?"

"Hmm."

"Then I'll leave you a drawing, and the little donkey will go and bring the saddle backpack!"

After a while, Zhao Xiaodonkey brought the huge marching backpack.

Zhao Xiong took the button that opened the backpack, reached out and pretended to touch the backpack, and took out a straight tube with a picture.

Then hand it to the little aunt, who opened the straight tube and pulled out a few pictures and spread them out, and couldn't take her eyes off.

After a long time, the little aunt raised her head and looked at him with her eyes and said, "You really show me this picture!"

You're not afraid that I'll steal it! ”

Zhao Xiong smiled, "I believe in you, after a few years of peace, you can pass it on to your family, I have no objection!"

I'll draw another converter and build it here...... Small blast furnace to improve ...... Temperature. ”

Zhao Xiong's drawings are small blast furnaces in China in the 50s.

This iron factory also does not have an electric motor to blow air with a steam engine, and theoretically reaches a blast furnace utilization coefficient of 1.5, and 10 cubic meters can produce 12 tons a day, even if the Great Leap Forward makes a big discount, at least there are a few tons.

As for iron ore, it can be bought from the merchants of the canal docks.

Zhao Xiong thinks it's not too difficult.

A steam blower can be built from a drawing.

However, since ancient times, most of China's coal contains high phosphorus and sulfur, which has caused a sharp deterioration in the quality of iron products.

The safety of the shooter cannot be guaranteed. The quality of the coal is not high, and there is also the quality problem of iron ore.

He thought about so many things in a moment.

The little aunt looked at the drawings and said, "I've seen iron-making, and I've seen steel-making, but there is no furnace for steel-making nine times out of ten."

But with what you drew on the drawings, I think it works!

It's just that steam blower, I don't know what to do! ”

Zhao Xiong said: "The difference between steel and iron is actually the difference in temperature. ”

Tong Xin nodded and said:

"Unfortunately, we don't have a good way to raise the furnace temperature, and in most cases blacksmiths can only remove impurities from the iron through continuous forging to make "100 steel". ”

Zhao Xiong also knew that the Great Kang Dynasty not only consumed a lot of manpower and material resources to make steel, but also the efficiency was outrageously low.

Just like the amount of Baihua steel that is not much, it is only about 30 catties, which is worth more than 20 taels of silver, and the 100 steels are still low-carbon steel.

If mild steel is put in the future, it will be considered garbage to make kitchen knives.

In later generations, China's steel accounted for 65% of the world's production from the time he passed through.

"In this way, I will entrust you with carte blanche about the matter of the small blast furnace!"

The little aunt nodded excitedly, took the drawings tightly in her hand, and everything was in plain sight!

"Lao Wang, where did you get this coking coal!" Zhao Xiong turned his head and asked.

Wang Xiaoqi hurriedly replied: "My lord, some coal is produced in several coal kilns in Shagou Village, Zaozhuang, 30 miles away, and we transported it by boat.

As for the coking coal, it is all made by itself.

It's just that a few days ago, because of the riots of the displaced people, the coal mines there were closed.

If we continue like this, we will have to go up the mountain to mine coal! ”

"You say there's coal in the mountains?"

Liu Tongxun next to him asked.

"There is coal, in the past, thousands of households opened a mine, but then it collapsed, and many people died, and we went to the mountains to pick up coal with baskets on our backs!"

When Zhao Xiong heard that there were no coal mines in the vicinity, he was overjoyed.

When he was keeping a vigil in the village, he also checked it in the space.

The Yixian area where he is located is the future Zaozhuang City in Shandong.

In the area around Yixian County, there are iron ore, copper ore, gold and silver ore, and important coal.

When he was in Zhuangzi, he thought,

These important minerals all have owners, and he doesn't plan to touch them.

In terms of strength, there are four major families in front of them who control all aspects of the local area, and their family ranks fifth.

As the weakest family, he still lurks silently!

However, he is still very interested in the collapsed coal mine on the abandoned Acropolis Mountain, but he doesn't know the size and quality of the ore veins.

It seems that he still needs to stay in this village for a few days, and send someone to find out the geography here, as well as the commuting situation of the post road to Zaozhuang.

He made a decision in an instant, and said, "Oh, by the way, Wang Tiezhu, come here!" ”

Wang Tiezhu, who was adding coal to the stove, wiped his hands on the rag and walked over.

Zhao Xiong touched the huge marching backpack on the ground and pretended to take out two 30-centimeter-long seamless steel pipes.

"This is a gun, Wang Tiezhu, you can make a short fire gun!"

Wang Tiezhu excitedly took the two seamless steel pipes in his hands, looked at them upside down, and then was amazed.

He sighed: "These two iron pipes don't look like they have been drilled, I haven't seen them so big, and the seamless pipes made by the pipe walls are seamless!" ”