"Childe... Something is coming...! ”

Just when Cheng Chumo was grinding at Li Zhan's place to ask for something, suddenly, Li Yi ran in and shouted happily.

"Something is coming...!" Li Zhan hadn't reacted yet, but Cheng Chumo, who was on the side, shouted with a light in his eyes: "Where... Where, hurry up and let me see! ”

And Cheng Chu thought about it for a while, what he wanted was the Suzhou steel equipment developed by Li Zhan in Zhushan...!

The last time they had a hundred horses, the hundred steels they owned were too gluttonous, and Cheng Chumo's envious saliva had to stay, but Cheng Chumo regretted that their right martial guards were a fart and were not qualified to touch these at all, but what surprised Cheng Chumo was that Li Zhan told Cheng Chumo at an inadvertent time that he was developing a kind of steel that could exceed 100 steel.

After the development is successfully cured, Li Zhan will build some armor and weapons for Li Chengqian's right guard.

This is not... Cheng Chu was silently waiting for the weapon to come, and finally the weapon finally arrived today.

"Let's go... Let's check it out...! Li Zhan also laughed at this time, you know, this is the Sugang made by Li Zhan for the soldiers of the Tang Dynasty, Li Zhan believes that the popularization of this Sugang in the future will definitely allow the soldiers of the Tang Dynasty to kill more enemies and die less.

China... From the beginning of the Warring States period to the Han Dynasty, China's pig iron steelmaking technology has developed from block ironmaking and carburizing steelmaking to pig iron solid decarburization steelmaking, frying steel, smelting wrought iron, and re-carburizing and hardening or quenching hardening.

On this basis, the method of diffusion carburizing and steelmaking of wrought iron using liquid pig iron was invented, which was first recorded in the Book of Northern Qi? Qimu Huaiwen Biography", which became "Su Tie". Later generations called steel filling, also known as "group steel"

Later, the steel filling method continued to develop, and in the Song Dynasty, the pig iron sheet was embedded in the coiled wrought iron bar heavy sword, and the steelmaking furnace was sealed with mud for smelting, and the effect was better.

In the Ming Dynasty, the pig iron sheet was changed to a number of wrought iron sheets that were tightly bundled, so that the molten pig iron could evenly penetrate into the wrought iron, and the mouth of the furnace was covered with mud-coated straw sandals, so that the pig iron could get oxygen from the air and melt more easily, which improved the smelting efficiency.

And finally stay in China, the most advanced does not need any machine a kind of steelmaking method, the name is called the Suzhou steel method, the Suzhou steel method uses wrought iron as the material iron to be placed in the furnace, and the pig iron is placed at the mouth of the furnace, the pig iron plate begins to melt and moves left and right with tongs, and constantly turns the iron, so that the iron is evenly poured into the dripping pig iron liquid, which can not only produce a good carburizing effect, but also produce a violent oxidation effect, so that the iron and slag are separated, and the steel with less slag content and uniform composition is produced.

Sugang is the last generation of direct bloodline of the ancient steel filling method. At this point in time in 1938, some small workshops did not receive any technical support from any large manufacturers. Industrial thermometers, electricity and the like are not used in any small workshops.

A lot of blacksmiths shop small workshops, making scissors, hoes... The Sugang method is used.

In ancient times, when there was no thermometer, no metallographic microscopy, and even the concept of "carbon content", what people called "wrought iron" is actually a very wide range of concepts, from wrought iron in the modern sense to malleable iron, low carbon steel, medium carbon steel, and even high carbon steel may be included in the concept of "wrought iron".

Because in the hearts of the ancients, "steel" is sacred, and only a small part of steel with few impurities and high hardness will be used by the ancients with the title of "steel". Everything else is "iron".

Sugang will be the strongest weapon in the hands of Datang.

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A hundred black boxes were moved into Li Zhan's house, and Li Zhan looked at the visitor with a smile: "Are they all built according to the drawings I gave?" ”

"Yes... Tried it hundreds of times, and finally succeeded...! The visitor smiled firmly.

Cheng Chumo couldn't wait to open the box, only to see three things lying in the box, the first one, the step armor, the second Mo knife, and the third bow to defeat the enemy....!

First of all, let's talk about step people... According to the regulations of the fourth year of Song Shaoxing (1134), the step armor is composed of 1825 armor leaves, and the general weight is 58 Song Jin, and the protection can be improved by increasing the number of armor leaves, but the weight will rise further.

FOR THIS REASON, THE EMPEROR PERSONALLY DECREED THAT THE INFANTRY ARMOR SHOULD BE LIMITED TO 29.8 KG, AND THEN SET THE WEIGHT OF THE ARMOR OF THE PIKEMEN AT 32-35 KG, AND SINCE THE ARCHERS WERE OFTEN INVOLVED IN MELEE COMBAT, THEIR ARMOR WAS SET AT 28-33 KG; WHILE THE ARMOR OF THE CROSSBOW SHOOTER WAS SET AT 22-27KG. At the same time, the type of European infantry cavalry armor was mainly chain mail, which did not reach such a weight.

The weight of the armor of the gunner, archer, and crossbowman, the basic weight of the infantry armor is 58 catties (1 Song Jin = 1.2 city catties), on this basis, the weight of the crossbow armor is slightly lighter, 54 catties, the archer is 66 catties, and the gunner is 70 catties, depending on the battlefield situation, the archer armor can be increased to 70 catties in a short time, and the gunner is increased to 88 catties.

Around the tenth year of Shaoxing, it was the most powerful period of the Song Dynasty's army. Famous generals Yue Fei and Han Shizhong led the heavy infantry with iron armor, spears and crossbows as the main equipment, relying on trenches and fortresses in dense formations, and the mounted cavalry repeatedly defeated the cavalry of the Jin Dynasty.

However, at that time, the load of the heavy infantry of the Song army was as high as 40-50KG, and due to the heavy equipment, the mobility was affected, such as the Zhegao Battle in the eleventh year of Shaoxing (1), the Song army with infantry as the main force, due to the heavy armor and too long weapons, the overload and physical consumption were too great, so it failed to completely annihilate the Jin Dynasty cavalry that had collapsed.

But Li Zhan's Su Gang perfectly avoided the only slot of the Buren Armor, why... Because Sugang is light, but the defense is high, that is to say, the gunner's 70 catties of infantry armor defense, Li Zhan's Sugang only needs 35 catties, losing half of the weight.

The 35-kilogram Sugang is extremely light on the body, and what Li Zhan brought this time is the 35-kilogram Sugang step armor, but his defensive power is definitely not inferior to the Bailian Steel of the Hundred Horses, and even much higher.

The second piece is Mo Dao... Li Zhan's Mo knife is somewhat different from the Mo knife used in the Tang Army now, the Mo knife used in the Tang Army at this time is the same as the knife used by Li Junxian, two meters long, weighing thirty catties, and those who wield the Mo knife are basically strong men.

The Tang Dynasty used the Mo sword to deal with the Turkic cavalry, and later it was popular in the armies to deal with the "four yi" of the Tang Dynasty, which was dominated by cavalry.

In the Tang Dynasty, the perfect system of the festival made the army's equipment and training to be regularized, and the Mo knife became one of the main combat weapons of the Tang infantry, becoming a conventional equipment, and the establishment of the system made the towns recruit troops and horses, and established the cavalry of the middle and large universities, and the cavalry played an important role, which made the weapons of the cavalry restrained... Modao was popular until the late Tang Dynasty.

Li Zhan's Mo knife is very different from the current Tang Jun's Mo knife, this Mo knife shot with Su Gang, the cold light that shines out, makes Cheng Chumo's heart excited.

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