Chapter 803

This is simply a general renovation. The original crooked front has already been flattened by Gu zhenghammer.

A new spare wooden pole was inserted perfectly by Gu Zheng.

Swing it in your hand without any feeling of disconnection. It's like a new one, with a spirit.

Uncle Mao, who was very satisfied with this, passed three dollars to Gu Zheng without thinking about it. After he took the tool and stepped out of the threshold, he thought about it and turned back.

Uncle Mao, who returned again, directly handed over 20 big money. He didn't treat Gu Zheng as an outsider, so he made Gu Zheng's first big business after he took over the blacksmith's shop with a smile.

"Gu Zheng, there are five large and small scissors in my shop. I don't take advantage of others. I'll pay the money in advance. Later, I'll give you the scissors in batches."

"If you can't send them together, you'll have to make trouble and change them in batches. You can't let all the tools I can use in my shop disappear, can you?"

Uncle Mao is really a good man. After hearing this, Gu Zheng showed a simple and honest smile on his face.

"Cheng! Uncle! Listen to you. If someone asks, you can help me publicize more. I know that your business is related to fur merchants, silk merchants and so on."

"They all use it."

Hey, that's smart.

Business people are not afraid to meet smart people. At least it doesn't take much effort to cooperate in this way.

It's just a small effort. Uncle Mao should come down with a smile.

The neighbors around the shop dispersed in twos and threes when they saw that there was no excitement.

The rest of the work that came in occasionally was small work that could be cooked in a few minutes. After Gu Zheng handled it three or two times, he finally made room to do his big work.

……

That was also the second thing Gu Zheng wanted to do, to provide iron ingots for the official workshop.

Now it is the early year of the founding of the Yuan Dynasty. Emperor Jing of the Han Dynasty has died for six years, but the young emperor sitting on the throne has grown up.

Calculating his age, he was as big as Gu Zheng today.

It was at this moment that the young emperor was most eager to try to find a way to prosperity for the country.

However, the young emperor, who has not yet fully grasped the power, is still fighting with the most powerful woman in the world.

According to Gu Zheng's memory, the government-run workshops that have survived all over the world have also focused on maintaining stability in recent years without any increase.

Then, this means that Gu Zheng's goal now can not be considered from the direction of expanding scale and increasing efficiency, but from the aspects of lean refining and quality leap.

Then try it yourself.

However, this batch of iron ingots in groups of ten still needs to be made by the safe forging method of "block smelting carburizing".

This process is improved on the basis of the original block ironmaking.

It can be said that it is the technical crystallization of ingenious Chinese craftsmen.

This is an innovative technology obtained from repeated attempts by countless craftsmen from the most basic smelting technology.

In this process, the basic iron ingot is manufactured by block ironmaking technology, and then repeated forging is carried out. In this process, it also needs to be heated repeatedly, and a certain proportion of charcoal is blown into the melted iron ingot. In the full beating and fusion, the iron absorbs the carbon in the charcoal, improves the carbon content, reduces inclusions, and becomes a steel process, It can make the iron ingot produced a qualitative leap.

The iron ingot produced is called block carburizing.

The steel has compact structure and uniform carbon content, and is suitable for making weapons and cutting tools.

However, the complexity of the process and the strength required are really not easy.

If Gu Zheng had started five groups before, I'm afraid he would have to refine and scrap two groups. With the effort of returning to the furnace for manufacturing, ten groups of iron ingots would require him to hammer continuously for seven days.

But now it's in Gu Zheng's hands. Let's test the results after he has to study in bed.

Gu Zheng, who trampled on the bellows, threw the rough billet with relatively high purity ratio into the furnace.

According to Professor Shifu's temperature scale corresponding to the flame color, he observed it carefully.

When the flames were almost pure white, Gu Zheng gently lifted the discharge port of the furnace, and a stream of molten iron, which was red like lava, flowed out of it.

Slowly roll into the fixed grinding tool groove along the connecting groove on the edge of the material opening.

Semi liquid iron with high temperature there needs many processes such as precipitation and quenching at room temperature. When the ingot is fixed and formed by the mold, it can carry out secondary tempering and Carburization in the soft form of solidification.

At this time, it's time to see the blacksmith's real skills. The moves of breaking the wind and hammering in disorder, such as crazy magic hammering, are really nothing in front of the blacksmith who hammers steel.

Only after you start it yourself can you really marvel at the creativity of the Chinese working people and the difficulty of blacksmiths who are advertised as three hard jobs.

Because the iron ingot that is purely hand quenched needs a quencher.

How to remove impurities from ingots still depends on a hammer.

This kind of work depends on hand feeling, and the experience can't be described in oral language.

This mysterious feeling can only be felt by a blacksmith himself.

Even if Gu Zheng didn't study day and night, he sighed at the iron ingot cooled by cold water for the first time.

Failed.

This finished product, which was no different from the sample iron ingot in appearance and color, knocked out a small depression on the iron ingot tempered by Gu Zheng after he raised a sample iron and collided with it violently.

It's like a broken shape when you turn your head and are knocked. It's too fragile.

This is also the reason why there are too many unknown impurities in the ingot.

It seems that practice is the only criterion for testing truth. This sentence is true.

Then let's start over.

According to the details that master once taught, do it again step by step.

More carefully, Gu Zheng took off his coats to keep out the cold in the autumn.

He was wearing a sleeveless waistcoat, naked and strong arms, and honest with his strong muscles. He buried himself in the shop as if there were no one else.

When it was dark in the West and the first star appeared, the tinkling sound in the blacksmith shop was silent.

Gu Zheng was excited by the fire.

In front of him was the first standard iron ingot, which was still slightly hot.

It took him three hours from refining to forming.

If this efficiency is known by skilled old craftsmen, it is inevitable to praise it.

But for Gu Zheng, who keeps improving, this efficiency is too low.

This kind of ten ingots once a month can be attributed to the official workshops across the country. Compared with the needs of the huge imperial army, it is really too insignificant.

According to Gu Zheng's memory, most of the official workshops are stationed in units above the city and county.

There are few workshops that can branch to the township and county level.

According to the standard collocation of 3-5 private blacksmith shops under the first palace official office, guanyong weapon manufacturing at this time is really a hard injury.

The state of unequal supply and demand makes the border troops of the imperial court lack confidence when facing the Huns who are not backward in weapons.

It's no wonder that in recent years, the imperial court has been facing the pressure of the Huns with a Huairou policy. When the situation is bad, it takes the initiative to dedicate its princess to make peace to ease the deteriorating situation.

Alas, this is the general trend. Let's take our time.

Gu Zheng sighed, rubbed his sour arm, carefully wrapped the fresh results today with linen, locked them in the toolbox at the side of the workshop, checked the paved doors and windows that fell early, and closed the fire.

With more than 30 big money from today, even in the clothes he put on again, because the sweat stains had already lost their heat, Gu Zheng's heart full of hope could not be stopped.

How long has this not happened.