Su Yuan was satisfied, he succeeded in stealing the teacher, and he knew the craftsmanship of the Damascus knife well, and it was worth the trip.

Huangfu Jiang said with a smile: "These are my favorite things when I first started collecting, I didn't understand it at that time, and I blindly followed the trend, and everyone followed the clouds." Fortunately, I bought it early, the price is cheap, and if I change it to now, I can change it to a few Mercedes-Benzes. ”

Shen Huanwen frowned, as if he remembered something: "Hmph, if you can buy a genuine handmade product, it's lucky, now many of the so-called Damascus on the market are fake, either pickled, or powder metallurgy, all profiteers!"

Su Yuan nodded, when it comes to industrial forging technology, he is an expert, after all, he was born in a four-year college class and is very familiar with high-tech.

In the early years, there was a method of imitating Damascus knives called etching patterns, which is to use strong acid to corrode the pattern on a single steel, which is completely different from the pickling process of real Damascus knives.

Later, a new technology appeared to be more awesome, Ruifen, a powder metallurgy technology in Sweden. First of all, in a high-temperature vacuum environment, the molten steel of two or more materials is sprayed into a mist powder.

Then use the computer to control the arrangement of these powders, form a variety of patterns you want, and then cool down, condense these mist powders into small steel balls, and then through high pressure, the steel balls are melted and pressed into a steel bottom plate. Its pattern is regular and neat, and can be designed into any pattern.

In terms of hardness, Ruifen is comparable to folded and forged Damascus steel, but the steel condensed by powder is far inferior to folded and forged Damascus steel in toughness.

Huang Fujiang turned around and took out a piece of steel from the cabinet and displayed: "This is a representative of the hand-forged stainless Damascus steel of Thomas in the United States, which is known for its excellent performance, low-key and rigorous pattern. Users include William Henry, the world's top knife company, Keith, a veteran pocket knife, and top craftsmen such as Chris Leaf. ”

Helplessly: "Now that high-tech is rampant, manual forging not only takes a long time, consumes a lot of energy, and cannot be mass-produced at all." Several of the world's top tool companies spend hundreds of millions of dollars every year to research new technologies, which are changing with each passing day, and the level is getting higher and higher, monopolizing hundreds of billions of huge profits. ”

Su Yuan walked to the side of the display cabinet, there are dozens of sabers, to put it bluntly, playing with sabers is to fight steel, a large number of high-tech to continuously improve the strength and toughness of raw materials, coupled with computer fine grinding, a set of assembly lines down, the efficiency is countless times higher than that of manual work.

If nothing else, there are at least five ways to treat the surface of the blade. For example, anodic plating, a chemical plating surface covering treatment method, can change the appearance of the product, improve the surface color and texture structure.

The most common is anodized surface treatment of titanium and aluminum. Using different voltages, different colors can be produced, and many colorful knives on the market come from this.

For sabers, pearlescent treatment is more widely used, and high-pressure cleaning of the surface is much less damaging than ordinary sandblasting, and the treatment cost is relatively low. It is often used in tactical folding knives and straight-handled knives, and is characterized by a 100% dull surface of the knife, which completely eliminates reflections.

In the dark night, kill invisibly!

There is also black oxidation technology, especially black titanium carbon treatment, which applies a black coating of titanium carbon material with a thickness of only 3 microns to the surface, which can not only eliminate reflections, but also enhance its corrosion resistance.

After the surface of the tool is coated, the hardness and wear resistance of the tool surface and the cutting performance of the tool can be improved, so the service life of the tool can also be extended.

The most awesome is the newly emerged BM technology, a treatment method for black Teflon coatings. It is 40 times higher than the current standard for the corrosion resistance of stainless steel.

At the same time, Teflon also improves the cutting ability of the knife, and the coating has a fine structure, which generates pressure inside the coating, so it has a stronger ability to resist crack propagation.

As for the types of high-tech improved steel, there are at least dozens of mainstream ones, and each large company has its own main characteristics. After the cold weapon withdrew from the stage of war, it was transferred to civilian use, mainly sabers.

"In a few days there will be the World Saber Expo, which is once a year and is the top event for knife companies to showcase new technologies. ”

Huangfu Jiang smiled: "Brother, if you have time, let's go and see together?"

Su Yuan happily agreed, remembering the task of the system cheating, the World Saber Expo...... It's kind of interesting!

Shen Huanwen also nodded in agreement, he had been there a few times in his early years, and every time he came back angry, he didn't conspire with each other, and foreigners would toss blindly.

After reading all the swords, Su Yuan was very satisfied, and he swiped a large wave of experience points, especially other categories, and his level improved a lot again.

Shen Huanwen suddenly remembered something, and asked, "I haven't been here with you for ten years, and the old rules of the year are still there?"

Huangfu Jiang laughed and said confidently: "There are friends from afar, so I don't want to say anything." Wanjian Villa naturally has to be polite, not to mention a master like Brother Su, please come with me. ”

Seeing Su Yuan's confused expression, Shen Huanwen explained in a low voice: "What I saw just now is only one-tenth of the old guy's collection, Wanjian Villa is indeed not in vain, don't be polite for a while, pick up the best one!"

Soon everyone came to the second basement floor, which was full of shelves, densely packed with various swords, and there were thousands of them. Huangfu Jiang said proudly: "This is the rule of Wanjian Villa, as long as a distinguished guest comes to the door, you can choose a favorite sword to take away, which is considered a meeting gift for the elderly." ”

"Hmph, stinky and slightful!" Shen Huanwen scolded with a smile, but his body was very honest, he didn't say a word, he started to choose directly, and if he didn't take advantage of it, he was a bastard.

Su Yuan was overjoyed, he had never seen a spectacular scene of thousands of swords, most of them were collected by Huangfu Jiang in his early years, and many of them were rusty ancient swords, there were too many of them, and he didn't have the time and energy to repolish them.

Huangfu Jiang said with a smile: "You're welcome, brother, here when Old Monster Xu photographed Shushan, many sword prototypes came from here." Later, I simply let my friends choose and bring it back as a heart. ”

Su Yuan laughed, since that's the case, what are you waiting for?

All kinds of lights flashed in his eyes, and he quickly wandered between the shelves, and suddenly his eyes lit up, and he hurriedly came to the corner and took out a large bundle of ancient swords.

The surface is rusty, but Su Yuan is like a treasure, the golden light sword, it is actually a golden light sword!

Soon Shen Huanwen and Xu Kui also found their favorite swords, all of which were ancient swords, and Shen Huanwen specially picked a Qin bronze sword, which was a collection and research, and this kind of museum-level thing was not easy to find.

Huangfu Jiang waved his hand, a picture of a wealthy local tyrant, once inventoried, collected more than 10,000, ninety percent of it is an ancient sword, rather than rusting in his own hands, it is better to give favors, and those who are destined to live in it.

Everyone talked happily, and they didn't leave to go back to the hotel until the evening, after Su Yuan simply polished it, he looked at the golden light sword, and a thought flashed in his mind......