Gao Li didn't know how he spent the night, and the only memory he had before he lost consciousness was that his stomach was about to explode with alcohol. Before he fell unconscious, he seemed to see Tie Hoof and Gu Wuwu walking out of the room with a smile, and he also seemed to hear the sound of wind and thunder outside. Of course, this may be a delusion, but when I woke up, the room had been cleaned up, and the wine jars all over the floor were gone. It was himself, and his head hurt terribly.

Although it is only a mediocre rice wine, the degree is very low. But if you drink too much, you still have a headache, not only a headache, but also a stomachache.

Lying on the bed and humming for a while, Gao Li turned over and got out of bed, and the two yellowed paper golden tickets on the table seemed to be a little dazzling.

In any case, one thing is certain. The relationship between Iron Hoof and Gu Wuwu is really as he guessed, both friend and foe. Especially now, Iron Hoof is working as a blacksmith here, and Gu Wuwu is a teacher in the palace, and the two of them are almost in a state of retirement, but they can better reflect their friendship.

So, how do you do that?

Live up to friendship and trust.

Throughout human history, in fact, things like swords have gradually developed in the direction of refinement and ritualization. Knives, on the other hand, are gradually moving in the direction of more practical weaponization. Gao Li actually prefers knives to swords. Because the heaviness of the chopping and the thrill of destruction cannot be given by the sword.

The data is given, and the rest is just the appearance.

Since the first production of 100 steels, the bull demons have made great progress in the way they play with the carbon content of steel, and they can stably obtain the hardness they want. Since this is the case, Gao Li decided to make a pure steel knife for Gu Wuwu.

Gao Li's original intention was to make a steel weapon to show off his skill.

As the saying goes, 'good steel is on the edge of a knife', so why do we do this? At that time, the play of steel was limited, wrought iron was soft, and the steel mark was uncertain.

But when Gao Li proposed this plan to Lao Niu, Lao Niu rejected the proposal.

This involves the problem that Gao Li ignores.

Really angry.

"Brother, you're bullying me, I'm a small cultivator, I don't have any other skills except for the acupoints, how do I know what true qi is?" Gao Li was helpless.

"I'm stupid, I'm not easy to say, you watch. As he spoke, the old cow galloped all the way to get a few swords.

"I'll inject the same amount of True Qi into these three swords, you see. ”

Bang!

The white iron sword turned into powder.

Click!

The cast steel sword broke into several sections.

However, the wrought iron sword was only slightly bent.

Gao Li instantly understood that under the effect of injecting true qi, the degree of deformation of steel with different carbon content was completely different!

The strong fight, a good weapon is the icing on the cake, and one's own hard cultivation is the most important. And what cultivation brings to people is the strength of true qi.

It's okay for ordinary people to use steel clamping process weapons, but no matter what kind of composite process, once the true qi is injected, the steel will undergo a certain degree of deformation, and under the steel clamping process, two different materials have different degrees of deformation, which may completely destroy a sword. And the reason why the sword of the jade-faced ghost has no problem is because of the steel-filling process used, the pig iron is poured on the outside of the wrought iron, and the carbon atoms penetrate into the wrought iron, which essentially turns the wrought iron into steel!

I see.

That's easy to do.

A twenty-pound steel knife has its own thickness and width to ensure its strength. Faced with the terrifying temptation of 1,500 taels of gold, Gao Li decided to get him a weapon that he would never forget in his life.

The one-piece blade handle has a carefully adjusted center of gravity positioned one foot in front of the handle. The front half of the blade has a sharp edge for cutting, and the back half has a round edge for parrying. For the post-processing of this knife, Gao Li planned two processes.

Steel-filled method and soil-covered burning edge.

The steel filling method is relatively simple, and everyone has played it once before. It's just that this time a large tank was prepared to hold molten pig iron, and after several experiments, I finally got a more satisfactory time.

Then, it's time to cover the blade.

As a hardcore martial arts game, building a weapon system is naturally one of the contents, and Gao Li's information is not in vain. Each knifesmith uses a different recipe for covering the soil burning blade, and Gao Li chose the simplest one: clay + borax + iron powder + toner.

"Brother, can you play like this?" Iron Hoof didn't have much confidence, and he covered the blade that had been sharpened with mud, and then burned it, what kind of weird way to play?

"Just look at it. Gao Li, who was roasted by the fire, said with a flushed face.

In order to build this knife, Gao Li has been squatting in this place for almost half a month, and he must personally check and record the ratio of some experiments. This is all first-hand metallurgical information, and before the advent of alloy equipment, this is something that no amount of money can exchange.

The furnace was red, and the knife strips were also burned red, Gao Li looked at the color, the temperature should be about the same, took out the knife, and inserted it directly into the water.

With the steaming of water vapor, when the knife was taken out, the whole had a trace of arc!

The carbon steel suddenly cooled down and turned into martensite, and the volume of the blade part expanded slightly, and the back part of the knife slowly decreased due to the attachment of soil, so the knife turned into a scimitar.

The soil was scattered in the water, and seeing that the quenching was completed, Gao Li took out the knife and whispered: "Finally, it's done!"

There was immediately a cheer all around.

There are already more than a dozen scrapped knives in the workshop, and some of them are not very effective in filling steel. Some are quenched and collapsed, only this one, the effect is perfect!

"Brother, I'll leave the matter of tempering and shaping to you, I'll go see if the new grinding tools are ready. Gao Li gave the knife to the first iron hoof.

"Leave it to me, you can rest assured!"

Iron Hoof grabbed the knife and shook slightly, the true qi poured in, and with a bang, the dirt on the surface disintegrated, revealing the blade below, and Iron Hoof's eyes suddenly lit up.

"It's a good knife. ”

The knife also had to be tempered to turn part of the martensite into sostenite for better mechanical properties. I also need to fix the irregular shape.

When all this is done, it's time for the grinding phase.

The earth's modern cold weapon manufacturing industry is basically the art of polishing, in addition to a variety of patterned steel play. It's a pity that this world is still a person holding a stone and grinding a knife. Gao Li can't get a belt grinder, but he can get a simple pedal grinder.

A pedal, a connecting rod, and a crankshaft drive a large grinding stone, and different models of grinding stones polish different effects, and the last one is a sheepskin wheel polishing.

It's a pity that there is no optical axis in this world, otherwise it would be invincible to be a small grinder.