Gao Li didn't know how he spent this night. The only memory before he lost consciousness was that his stomach was about to be blown up by the wine. Before he fell into a coma, he seemed to see Tieho and Gu Wuyou walking out of the room with a smile, and he seemed to hear the sound of wind and thunder outside. Of course, this might be an illusion. Anyway, after waking up, the room had been cleaned up and the wine jars all over the floor were gone. But he himself had a very painful head.

Although it is just a mere rice wine, the degree is very low. But drinking too much will still cause headaches, not only headaches, but also stomachache.

Lying on the bed and hummed for a while, Gao Li turned over and got out of bed. The two yellowed paper gold tickets on the table seemed a little dazzling.

In any case, one thing can be confirmed. The relationship between Tiexu and Gu Wuyou is actually as he guessed, both enemies and friends. Especially now, Tiexu is a blacksmith here and Gu Wuyou is a teacher in the palace. Almost both of them are retired, which can better reflect friendship.

So, how to do it?

Live up to friendship and trust.

Looking at the entire human history, in fact, swords are gradually developing towards refinement and ritualization. However, swords are gradually moving towards more practical weaponization. Compared with swords, Gao Li actually prefers swords. Because the heavy feeling of chopping and the pleasure of destruction cannot be given by swords.

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

Since the first production of Steel Fencing, the bull demons have made great progress in playing the carbon content of steel and can steadily obtain the hardness they want. Since this is the case, Gao Li decided to build a pure steel knife for Gu Wuyou.

Gao Li originally planned to make a steel clamping weapon to demonstrate his superb skills.

As the saying goes on earth, "Good steel is used on the blade", why do you need to do this? Naturally, it is because there is less good steel. In that era, the way of playing steel was limited, the hard iron was soft, and the steel mark was uncertain. It was difficult to make some good steel and naturally it was used in a suitable place.

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

This involves the issue that Gao Li overlooked.

True Qi.

"Brother, you are bullying me. With my small-scale cultivation, I have no other skills except acupoints. How can I understand what true qi is?" Gao Li was helpless.

"I'm stupid in this matter, so it's hard to talk about. Look." As he said that, Lao Niu ran all the way to get a few swords.

"I inject the same amount of true energy into these three swords, and you can see."

Bang!

The white iron sword turned into powder.

Click!

The cast steel sword was broken into several sections.

However, the mature iron sword was only slightly bent.

Gao Lizha understood in an instant that under the influence of injecting true qi, steel with different carbon contents has completely different deformation degrees!

When strong people fight, good weapons are icing on the cake, and their own hard cultivation is the most important thing. What cultivation brings to people is the strength of true energy.

Ordinary people use steel clamping technology weapons, but no matter what kind of composite technology is combined, once true energy is injected, the steel will undergo a certain degree of deformation. Under the steel clamping technology, the deformation degree of the two different materials may completely destroy a sword. The reason why the Jade-faced ghost's sword is not problematic is because the steel filling process used, the cast iron is poured outside the cooked iron, and carbon atoms seep into the cooked iron, which essentially turns the cooked iron into steel! The cast iron outside is almost polished when polishing!

So that's it.

Then it will be easy.

A 20-pound steel knife weighing 20 pounds is enough to ensure its strength. In the face of the terrifying temptation of 1,500 taels of gold, Gao Li decided to give him a weapon that he would never forget in his life.

The integrated blade handle is carefully adjusted to be located one foot in front of the blade handle. The blade is cut in front of the blade, and the rear half is cut in the circular blade, used for blocking. Gao Li planned two processes for the post-processing of this knife.

Steel filling method and soil-covering burning blade.

The steel filling method is relatively simple. Everyone has played it once before. However, this time, I prepared a large trough to hold the wet molten iron. After experimenting several times, I finally got a relatively satisfactory time.

Then, it is the burning blade covered with soil.

As a martial arts game that boasts hardcore, creating a weapon system is naturally one of the contents, and Gao Li’s information is not in vain. The formula for covering the soil and burning blades used by every knife maker is different, so Gao Li chose the simplest one: clay + borax + iron powder + toner.

"Brother, is it okay for you to play like this?" Tiexu had no confidence and covered the first sharpened knife strip with mud and burned it. What kind of weird gameplay is this?

"Just look at it." Gao Li, who was roasted by the fire, blushed on his face.

In order to build this knife, Gao Li has been squatting here for almost half a month. He has to check and record some experimental matching ratios himself. These are all first-hand metallurgical materials. Before the metal equipment appears, this is something that cannot be exchanged for no amount of money.

The fire was red, and the knife strip was burned red. Gao Li looked at the color and the temperature should be almost the same. He took out the knife and inserted it directly into the water.

Accompanied by the steam, when the knife was taken out, the whole thing actually had a slight arc!

The carbon steel suddenly cooled down and turned into martensite. The volume of the blade part expanded slightly. The back part of the blade lowered slowly because it was soil attached to it, so the temperature was slowly reduced.

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

There was a burst of cheers immediately around.

There are already more than a dozen scrap knives in the workshop. Some of them have poor steel filling and some have quenching and collapsed, and only this one has the effect of perfection!

"Brother, I'll leave it to you to rekindle the tempering and shape repair. I'll go and see if the new polishing tools are ready." Gao Li gave the knife strip to the iron hoof.

"Don't worry if you leave it to me!"

The iron hoof grabbed the knife strip and shook slightly, and the true energy poured in. With a bang, the dirt on the surface disintegrated, revealing the blade body below. The iron hoof's eyes suddenly shone.

"This is such a good knife."

The knife also needs to be tempered to turn part of the martensite into soxantiferite for better mechanical properties. It also needs to correct its irregular appearance.

When all this is done, it is the polishing stage.

In addition to various patterns of pattern steel, the modern cold weapons manufacturing industry on Earth is basically the art of polishing. Unfortunately, in this world, one person still grinds a sharpening knife with a grinding stone. Gao Li can't get a belt sanding machine, but he can get a simple foot grinding machine.

A pedal, a connecting rod, and a crankshaft drive a large grinding stone. Different models of grinding stones have different effects, and the last one is lambskin wheel polishing.
Chapter completed!