Chapter 743: Black Iron Essence

The bronze of the first mountain, Master Niu is a little familiar.
He seems to have heard of the legendary Xuanyuan sword in the current plane, and some materials used in it.
However, it is estimated that the essence of gold iron and the mother of Beigu iron are connected to the Internet, and they are searched with a thousand-degree search known as omniscience, and they cannot find any reliable answer.
However, living people will not be suffocated by urine. Master Niu still thinks of a way that is not a way.
After picking and selecting in the portable space, he found that the weapons and armor of various alloy materials contained hundreds of tons.
These weapons and armor are spares that Lord Niu placed in his personal space when he fought the witch palace the previous year.
Now, with the area of ​​Master Niu's portable space, it has gradually expanded to an alarming scale; Master Niu has also kept this batch of equipment in the portable space, too lazy to clean it out.
And at this time, Master Niu intends to smelt and purify these equipments, and then try his hand on a flying sword ...
First of all, Master Niu found all the equipment in his space.
Even, because of the fear of insufficient materials, Master Niu will find all things with iron in his space; iron pans, kitchen knives, camel pan machines, etc.
Fully pile up the three stone chambers in this cave mansion; after only a few feet wide of the open space in front of him, this will stop.
Then, according to the method of jade jade, Master Niu first tried to drive the fire.
He urged Jin Dan in the same way, and soon a purple, about half-foot flame appeared on the left hand of Master Niu.
Seeing this purple dan fire, Master Niu frowned.
This opening seems to be not so smooth, because according to the jade briefing, among the several kinds of red fires introduced in it, there is no purple alone.
Also, there is no hidden thunderstripe on any black fire.
Just thinking of the strange purple thunder cloud around Jin Dan, Master Niu felt that it was not so difficult to understand.
Forced to convince his own master Niu, officially began the first step of refining the sword, the purification of materials; this goods grabbed a shield and placed it on top of the blaze.
This purple erythrophobia is terrific.
Obviously there is a terrible temperature, but it is very close to the hands of Master Niu, which has no effect at all; but after the shield was put down, it changed in the blink of an eye.
The entire shield quickly turned into molten steel, and in the process of this change, a lot of substances that Master Niu did not understand were vaporized.
The shield turned into a reddish molten steel, at most only a half of the previous shield volume.
Even so, it is just the first step to purify the material; the magic weapon and flying sword of this world can have all kinds of powerful powers.
The formation engraved on it is one thing.
Another important aspect is that the materials have been repeatedly purified to an unimaginable degree in order to withstand the users' high-intensity use and combat.
In the end, the molten steel melted by a shield was repeatedly refined by Master Niu to the end; the molten steel with the size of half a small steel needle could not be further purified.
Seeing the essence of this, Master Niu knew that this was what he wanted.
But in order to use this kind of essence, and finally refine a flying sword, he still needs to repeat many times, just like the steps just now.
After feeling the real element in my body, it didn't cost much.
Master Niu first put away the essence of this bit, and smoothly threw the impurities of his fist aside; the goods grabbed a thick-back machete and refined it again.
In this way, Master Niu calmed down and began to refine the raw materials.
Whenever the real element in the body is insufficient, Master Niu puts a pill in his mouth and uses the rich heaven and earth aura around him to carry out some cultivation.
Until the real element in the body was abundant again, a new material purification began.
Gradually, the weapons and armor around Master Niu have been used up; by this time, I feel the essence of the refined essence, which is still far from enough. Start ...
It's a pity that Master Niu hiding in the cave house, what this shop doesn't even know is:
Otherwise, even the master refiner of this world, when he sees his generosity, he will be surprised to call out; actually use so many good black irons to make a flying sword.
This extravagant approach can be described as desperate.
Yes, that's right! Even if the world is favored by Heavenly Emperor and God-Man, the metal processing methods it possesses have just reached the stage of ironware.
The modern alloy steel is cheaper than salted fish. Here, only those who are innocent can extract something of similar quality.
They call this thing Xuan Tie, the price is very expensive.
As for Master Niu's processing, the last little essence is the legendary black iron essence; it is extremely rare and valuable.
The main reason is the problem of raw materials.
In this world, the most common method for ordinary refiners is to use ore to directly extract the required materials.
With the original mining methods of this era, if you want to make a hundred pounds of wrought iron, that is, an alloy steel equal to several hundred dollars, you need to let ordinary miners work for a long time.
Even the most high-end batch of refiners possess the most luxurious means of this era.
The sky is over, that is, taking the best refined iron to purify the materials they need; using the precious materials of black iron, it is a practice that even master refiners dare not imagine.
Secondly, there is the issue of purification ability ...
The tannin possessed by the refining master himself is the most important key issue that restricts each refining master; in order to be purified to the point of the essence of black iron, an extremely advanced tannin is required.
Every refiner who can purify the essence of black iron ~ EbookFREE.me ~ is respected as a master refiner.
It seems that there is no master refiner who can purify the essence of black iron on the entire giant coconut island; there are only two such figures on the dozen or so big islands around.
Only one of them is a human race, and the other is a demon race.
Therefore, if you can use the essence of the black iron with the size of a few sewing needles in the most important sword blade, you can already be called the top-grade flying sword.
Yun Ao, the head of the Zixiao School, promised that Lieutenant General will distribute it to Master Niu. The flying sword of tomorrow's star in this school is estimated to be only of this grade ...
Half a month later, when Master Niu shoveled the last engineer in his hand, after refining and purification.
There is no longer any steel products in the whole cave house; instead, it is full of waste slag, and if it is measured by ordinary alloy steel, it is the essence of the wrought iron of the scale of eight or nine pounds.
But in fact, the essence of this ruined wrought iron is afraid that it is no less than ten thousand pounds ...