Shuang Daqin comparison, no comparison, no harm

This bit of physics common sense, Zhao Ze still understands.

Sengoku years.

Because iron smelting technology is very backward.

Plus the main fuel is firewood, which is low in calories.

Therefore, the refined iron has a high carbon content.

Among steel.

The higher the carbon content, the more fragile it is, and the lower the content, the harder and tougher it is.

The iron of the Sengoku.

The carbon content is basically 4-6%.

Therefore, it is easy to break.

This is also why most of the Warring States cultural relics unearthed in later generations are bronze and few iron tools.

But.

The latest task given by the system to Zhao Ze.

It is to solve this crisis of the King of Qin.

Solution.

Zhao Ze has also drawn it up.

It is nothing more than mining coal as iron fuel, and then refining pure iron to cast armaments.

So.

Zhao Ze walked in the main hall.

The small figure looks a little cute among a group of strong men.

“I have an iron smelting method.”

“The refined iron is harder than the bronze sword, but it is not fragile.”

As soon as the words came out.

Immediately made the courtiers look at each other, wondering if Zhao Ze had a new invention?

After all.

Zhao Ze’s talent since childhood.

Always amazes this group of ministers.

Even Ying Zheng got up and asked, “Ze’er, what iron smelting method?” ”

“Steel filling method.”

Zhao Ze began to explain to the ministers how this law works.

First of all.

As a coal country, Qin State does not know the magic of coal.

So.

The first step of the Qin state was to send laborers to mine coal.

Iron ore is then collected.

First use coal, smelt a part of molten iron.

After waiting for the molten iron to solidify, forge it several times to remove impurities in the iron.

These have been impurities and contain only 0.02% carbon iron.

It is called wrought iron.

Afterwards.

Then smelt molten iron, which is unforged and contains 2% carbon.

It is called pig iron.

Pour pig iron over the wrought iron.

It is then tempered to remove impurities.

This results in high-carbon steels with a carbon content of 0.5-0.8%.

The steel obtained in this way is hard and tough, in addition to being easy to rust and needs maintenance, the properties are almost complete bronze.

After Zhao Ze’s easy-to-understand explanation.

People in both worlds have heard it half-aware.

Principle?

They don’t care.

Anyway, I heard that the iron forged in this way is very useful!

For Zhao Ze, the monarchs naturally trusted him.

Everyone understands.

Zhao Ze is a precious bump given to the Qin State by the heavens, and his appearance is to benefit the people of the Qin State.

Since Zhao Ze gave the plan.

Then everyone should definitely try it.

After all.

If this method really works.

You can switch to cheaper and cheaper iron.

Then.

There is no need to hurt the people of the Qin Kingdom.

“Lees!”

“Zhao Ze’s steel pouring method is your responsibility!”

Ying Zheng said excitedly.

“Minister! Thanks King! ”

Lees’s heart beat faster.

He was full of expectations for the steel in Zhao Ze’s mouth!

Soon.

Lees ordered.

Across the country, coal and iron ore are mined.

Then.

Steel furnaces were set up everywhere.

According to Zhao Ze’s method, high-carbon steel began to be manufactured in large quantities.

A few days later.

The first steel sword is out!

The first time, it was sent to the palace of the King of Qin in Xianyang.

On the main hall.

The courtiers showed great interest in this steel sword.

“Wang Yi!”

“Li Xin!”

Ying Zheng named two people.

“Veteran!”

“The end is coming!”

Wang Yi and Li Xinqi stepped forward and hugged their fists.

Pointing to the steel sword in Li Si’s hand, Huan Zheng was eager to try: “Li Xin, you take the steel sword, Wang Yi takes the iron sword, the two of you will try it.” ”

“Whoosh!”

Li Xin stepped forward and held the steel sword.

Wang Chui, who had white hair, pulled out his bronze sword and smiled.

“I want to see if the steel sword in the eldest prince’s mouth is really so powerful!”

Li Xin also smiled humbly.

“Tiger Marquis, please show mercy to your subordinates.”

“Kill!”

Behold.

Wang Chong suddenly burst out and killed Li Xin with a sword.

Li Xin’s expression changed sharply.

Hold an iron sword to block.

Bite! Clang! Bite!

After a series of sword clashes.

Wang Yi jumped two meters high, stunned Zhao Ze on the side.

No wonder!

Wang Yi was named the Marquis of the Tiger!

This bouncing ability is far beyond ordinary people, resembling a fierce tiger!

“Chop!”

Wang Yi roared lowly.

The bronze sword in his hand fell like a meteor and smashed towards Li Xin’s door.

Lee Xinton felt Alexander.

Hurriedly raised his sword in the rung, and took two steps back to offset the impact.

Bite!

The two swords collided.

Produces a crisper crashing sound.

Duh!

The next moment.

The bronze sword in Wang Chui’s hand broke in front of everyone.

Wang Yi, who still wanted to continue to attack, was stunned and had to withdraw his offensive.

“Broken?!”

In Wang Chui’s impression.

The broken sword should be an iron sword!

Li Xin steadied his figure and quickly checked the iron sword in his hand, only to see that there were many small sawteeth left on it after the collision, but it did not affect the use.

Lees picked up the short sword.

Take a look.

Shocked: “Great King, the bronze sword body is almost about to collapse!” ”

Presented to Ying Zheng.

Ying Zheng was also shocked.

Because.

On both blades of the bronze sword, cracks half a centimeter deep were left, and there were six or seven!

On the other hand, looking at the iron sword, the sword body only left a small gap that could hardly be seen.

Who is strong and who is weak.

Needless to say.