Chapter 1776

Zhongyi Temple, Confucian Temple, and Martial Arts Temple are all officially protected buildings.

It has unimaginable significance to Yun State and the people of Yun State.

In addition, during this year, all parts of the country are working hard to develop.

All walks of life are booming.

Foundry industry.

The famous Ou Yezi forged a peerless sword, and Ou Yezi named it Taichang.

I hope that the country of Yun will be peaceful and prosperous.

The day this sword was formed, purple energy came from the east.

The entire cloud sky was shrouded in purple air.

The auspicious atmosphere permeates the entire Yundu, bringing good luck to the people living in Yundu.

Yun Guoxin discovered several mineral veins.

There are iron ores, copper ores, and other minerals.

It was also this year that the steel filling method was born.

This is a new smelting process.

Be a player and upgrade your iron crafting to master level.

The great god Pangu rewarded him.

After the steel filling method is illuminated, it also means that the other party can teach this technique.

This player is also a character.

He doesn't care about himself.

But share it for free.

At this point, Yun State entered the era of steel filling method.

In the past, the methods used by everyone were more traditional.

Only those with particularly good forging skills can forge magical weapons.

The requirements for blacksmiths are very high.

Ancient smelting technology was in a relatively primitive stage before the Spring and Autumn Period. The smelting method used at that time was called"block smelting method".

At that time, charcoal was used as fuel for iron making, which had less heat. In addition, the furnace was small and the blasting equipment was poor. Therefore, the furnace temperature was relatively low and could not reach the melting temperature of iron. Therefore, the iron produced was a sponge-like solid block, called" Smelting iron."

Smelting lump iron is more time-consuming, has a soft texture and contains many impurities, and is forged into usable wrought iron.

Steel smelting technology later developed further to"block steelmaking".

In the process of forging iron and wrought iron, people need to constantly and repeatedly heat it. The iron absorbs the carbon in the charcoal, increases the carbon content, and reduces the inclusions to become steel. This kind of steel has a tight structure and uniform carbon content, making it suitable for making weapons and knives.

Later, it was further developed into the"hundred steel-making" technology.

When people are making utensils, they consciously increase the number of folding and forging. A piece of steel often needs to be burned, beaten, beaten and burned many times, even hundreds of times, so it is called hundreds of steelmaking.

Steelmaking has more carbon content, a finer structure, and more uniform composition, so the quality of the steel is improved, and it is mainly used to make swords and swords.

Only some people with inherited skills can forge swords, swords, famous swords, and famous swords.

The method is simple but requires relatively high skills.

During the Southern and Northern Dynasties, the more technologically advanced steel filling method had already appeared, and the weapons made by this method were tough and sharp.

The armor is stronger and lighter.

Soldiers are better equipped to protect themselves.

Yun Guo's steel filling method has developed rapidly, but this steel filling method is not available to everyone.

Only those with intermediate forging skills or above can use it.

As early as the Han Dynasty, people began to use coal as fuel and to smelt iron.

During the Northern Song Dynasty, the use of coal to smelt iron was quite common.

The temperature of the iron smelting furnace is thus increased, thus accelerating the smelting process and improving the production efficiency of the iron smelting industry.

Later, the steel filling method continued to develop.

In the Song Dynasty, pig iron sheets were embedded in the middle of coiled wrought iron bars, and the steel-making furnace was sealed with mud for smelting, which achieved better results.

In the Ming Dynasty, there was another improvement. The pig iron sheets were covered with several tightly tied wrought iron sheets, so that the pig iron liquid could penetrate into the wrought iron more evenly. Instead of sealing it with mud, use mud-coated straw sandals to cover the furnace mouth so that the pig iron can get oxygen from the air and melt more easily, thus improving the smelting efficiency.

After the mid-Ming Dynasty, the steel filling method was further developed into the Suzhou Steel method. Wrought iron was used as the feed iron, which was placed in the furnace and the pig iron plate was placed at the furnace mouth. When the furnace temperature rose to about 1300°C, the pig iron plate began to melt. , use tongs to clamp the pig iron plate and move it left and right, and constantly turn the iron material so that the iron material is evenly poured into the pig iron liquid; in this way, it can not only produce a good carburization effect, but also produce a violent oxidation effect, so that the iron and the Slag separation to produce steel with less slag and uniform composition.

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Iron, bronze, and porcelain developed rapidly

""Tiangong Pavilion" developed more weapons and city defense equipment within this year. The

Gongshu family showed great strength.

Various powerful weapons were born.

Basically all the major legions of the Yun Kingdom were replaced.

Equipped with a more advanced and powerful"siege war crossbow".

This is an upgrade on the"Zhuge Liannu".

It is more powerful.

It can load more arrows.

In an instant, it can fire a hundred The accuracy is reduced, but the coverage area is brighter.

The disadvantage is that it costs money.