Huang Fujiang said with a smile: "There are various standards popular in the saber circle, which are strange, but the expo has a unified test process, known as the four major challenges!"

"Rockwell hardness, bending motion, abrasion tests, and finally corrosion tests. Each item is divided into ten levels, one is the lowest, ten is the highest, and the full score is forty points, comprehensively evaluating the advantages and disadvantages of a saber. ”

Su Yuan nodded, I see, it is very professional, after looking around, it can be regarded as a boutique product that can exceed thirty points, and it is basically a rich yellow light, and the level of the famous sword villa is on the list.

"What can be exhibited here are all masterpieces, whether it is new technology or senior master design, it can already represent the highest level of advancement. ”

After Huang Fujiang finished his inspection, he said with a smile: "Not only Tom's side, but also thirty or forty large and small companies are of the same standard, the fair gathers many big sellers from all over the world, rich and powerful collectors, everyone wants to make a splash, especially many unknown small producers, this is the only opportunity to make a name for themselves." ”

After speaking, he pointed to the huge laboratory not far away and explained: "That's why every time I choose to hold it in a major company, in order to be able to test the saber with professional equipment at any time, and many enthusiasts come here every year to test their level." ”

"For 500 euros, you can test it comprehensively, and even on many forums, the results here are already considered authoritative and can be used to show off, which is very interesting. ”

Su Yuan nodded, his heart was happy, he was originally worried about how to find a chance to let the dragon thorn appear, but now it's good, the foreigner is really direct.

"Mr. Su is interested in trying it?" Tom finished his work and came to the two of them, some looking forward to such a young number one person on the Longquan Heavenly List.

I have been friends with Huangfu River for many years, and I know the roots, so that the other party can pay so much attention to the merits. Although the traditional sword has long since declined, there is no doubt that in the eyes of the truly top collectors, it is still the most collectible handmade.

It is human nature to be scarce and expensive, and the so-called enterprising brand also regularly launches a very small number of master limited edition sabers every year, as a high-end collection to attract local tyrants, all handmade, of course, with higher high-tech content.

Su Yuan nodded and said with a smile: "Since you came to the expo, how can you return empty-handed, Su is not talented, and I also want to challenge." ”

"No problem!" Tom smiled and promised, "There is a special testing site for the Advancers, and I will arrange it at any time as long as Mr. Su is willing." ”

Huang Fujiang was a little surprised, he didn't expect Su Yuan to really participate in the saber test? Tom pointed to the information that kept scrolling on the big screen and explained: "After years of experiments and revisions, the four major challenge items have been basically perfected, and they can represent the quality of a saber and are officially recognized. ”

"One of the most difficult things is the bending motion and corrosion test, and until today no saber has ever completed the 10th grade, and the highest is 9th. ”

Su Yuan was stunned for a moment, curiously looking at the names at the top of the big screen, the first place was actually the little devil's Sanmei Steel, the second was the carbon V of cold steel, and the third was the 154cm of the mad dog.

It seems that the so-called three famous steels are also the result of the four major challenges, Tom shrugged his shoulders and said helplessly: "Our best score of the advance is fifth, with a score of 34." Rockwell hardness and wear resistance are both 9 points, but unfortunately bending vibration and corrosion are only 8 points, which is very difficult. ”

Huang Fujiang interjected: "One of the main purposes of the expo is to show muscles, major companies as competitors, do not hesitate to spend a lot of money to create the best saber, all kinds of confidential high-tech together, is to compete for rankings, to make a name." ”

Su Yuan raised his head, the three American sabers, the score was 38, the Rockwell was ten points, the wear resistance was ten points, the bending vibration was nine points, and the corrosion was nine points, and he was the best among the others, ranking first.

Cold steel carbon V, score 37, Rockwell 10 points, wear resistance 10 points, bending vibration 9 points, corrosion 8 points, ranked second.

Mad Dog's 154, score 36, Rockwell 10 points, wear resistance 10 points, bending vibration 8 points, corrosion 8 points, ranked third.

The Vigo Sabre, with a rating of 35, a Rockwell score of 9, a 10-point abrasion resistance, an 8-point bending vibration, and an 8-point corrosion score, ranked fourth.

Then there are the Progressors, and the top 10 are all top brands, without exception. Tom also raised his head and said with confidence: "This year, we have developed several new technologies, this time we will definitely be able to challenge higher, and we will get Weigo first!"

Su Yuan turned around and took out the dragon thorn, Tom's eyes lit up, and he took it and studied: "Sword-shaped dagger?"

"At least 10% lighter than normal, the size is not standard, the friction of the handle material is not enough, and the material cannot adapt to extreme environments......

"There is no special coating on the surface......"

After all, he is the technical director, after reading it, he shook his head, he was a little disappointed with Su Yuan, and he didn't think so, the meaning of the existence of the saber is to adapt to all kinds of harsh environments, Rockwell is to represent hardness, wear resistance is sharpness, bending vibration is to test toughness, and corrosion test is the surface high-tech coating.

In his eyes, a work with a score of at least 30 or more can be called a saber and can adapt to various natural environments, as for this dragon thorn......

It's just nondescript!

Huang Fujiang saw Tom's disapproving expression, and also shook his head secretly, the so-called interlacing is like a mountain, your Su Yuan's traditional craftsmanship level is high, it does not mean that you can pretend to be forced in the saber field.

It's high-tech here, and you can do it casually, isn't it stupid that people spend hundreds of millions of dollars every year?

Still young!

Su Yuan smiled slightly, he didn't refute Tom's question, he was used to it, he took back the dragon thorn and asked, "Can you participate in the four major challenges?"

Stubborn young man, Tom nodded, after all, he was a friend of the emperor, and this little thing still had to give face, and said with a smile: "No problem, follow me." ”

Not far away is the testing center, and the reason why every expo chooses to be at the headquarters of major companies is to facilitate testing. Dozens of test sites, hundreds of professional testers are busy, not only brand owners, but also many enthusiasts and collectors are willing to participate in it.

Tom went directly to the test site specially arranged for the progressives, so as to facilitate the preferential treatment of VIP customers, and instructed: "All the data is collected uniformly, and it is displayed directly according to the ranking, in case your work can exceed thirty-two points, it will be a terrible thing!"

Su Yuan waved his hand, he could feel the other party's joke, no matter how much nonsense he had, he handed over the dragon thorn to the tester and started the first challenge, Rockwell hardness.

Rockwell hardness is an index of hardness value determined by the depth of plastic deformation of the indentation, with 0.002 mm as the unit of hardness. The use of different indenters and different forces in the Rockwell hardness test can produce different combinations, commonly used with 3 scales, and its applications cover almost all commonly used metal materials.

The test method is to use a diamond cone with a top angle of 120 degrees or a steel ball with a diameter of 1.5875mm/3.175mm/6.35mm/12.7mm to press into the surface of the measured material under a certain load, and the hardness of the material is calculated from the indentation depth.

The most commonly used scales are HRC, HRB and HRF, with the HRC scale being used to test hardened steel, tempered steel, quenched and tempered steel, and some stainless steels, and is the mainstream item for testing tool hardness.

The tester skillfully fixed the dragon thorn, and then started the machine, and the diamond was slowly pressed on the blade, starting from the first level, gradually increasing the pressure, and constantly changing the position until the limit was reached, and the data acquisition was successful.

Begin!