Although he has been promoted to a fifth-level trainee knight, Abel's spirit is still very poor, Master Bentham saw his appearance and hurriedly let him have a good rest, and Marshall Knight led Abel out of the blacksmith shop and walked out. Pen, fun, and www.biquge.info

Walking out of the blacksmith shop, he saw the carriage dedicated to the Marshall knight speeding from a distance, Abel couldn't help but glance down at the knight's boots, which were covered with dirt, and it was more than twenty minutes from the castle to the blacksmith carriage, but the Marshall knight couldn't wait, and ran over in order to get there quickly.

You must know that the Marshall Knight is a fiefdom nobleman, and this kind of running wild in his own territory is very shameful, but the Marshall Knight did it for Abel.

Abel looked at the Marshall knight with a happy face, this knight with a particularly good face was embarrassed, but he was happy for his upgrade, and his heart couldn't help but warm, and he said softly: "Uncle Marshall, thank you for everything you have done for me." ”

"Little kids want to do so much. The Marshall knight patted Abel on the head and pulled Abel into the carriage, which ran towards the castle in the sun.

"Ding, ding, ding. The next morning, Able had already arrived at the blacksmith's shop early, and asked Master Bentham for a separate room, and the master knew that this was Abel's first time making a great sword, and he didn't want to be disturbed, so he agreed.

Abel's idea was that he didn't want anyone to see how he built the greatsword, because he was going to use techniques that he had never seen anyone else use here, carburizing and quenching techniques that he had learned from earth science shows.

The rough blank of the sword should be constantly exercised to reduce the carbon content, and the less carbon content, the higher the quality of the rough blank. However, if you add some carbon to the edge of the sword by carburizing the sword, you can increase the hardness of the sword.

Abel put the formed sword into a crucible, this crucible was specially fired, just enough to put a big sword, it was prepared a few days ago, and the big sword in the crucible was covered with charcoal, tempeh, and clay powder, and then the crucible was sealed and put in the furnace for heating.

Charcoal and tempeh are naturally used for carburizing, and soil powder is still a dispersant. The advantage of this carburizing technology is that the carburizing obtained by the broadsword is very uniform and stable, and the carbon potential is very high, and the efficiency and effect are quite good. In fact, this kind of technology is still used on the modern earth, which is the so-called "steel stewed method".

And when it comes to quenching, there is also a corresponding technology for quenching in this world, which is to throw the sword into cold water for rapid cooling, but this has also led to a large increase in the scrap rate. Because of the rapid thermal expansion and contraction from hot iron to cold water, the internal stress in the metal is unbalanced in the quenching, so that the sword cracks when it is put into cold water, and sometimes after quenching, cracks will also appear after being taken out for a period of time.

When the long sword is taken out of the crucible, it is rubbed back and forth on the charcoal first, so that the charcoal can completely contact the sword body, and then put it into the bucket for quenching, half of the bucket is water, the other half is animal fat, and the sword is burned to nearly 1,000 degrees, and first enters the animal fat, and a large amount of heat is absorbed by the oil, but the heat transfer speed of the animal fat is not fast, and the sword will not be affected by stress, and then enters the cold water, the temperature is not as high as before, and the sword is quenched for the second time in the cold water。

After the big sword was cold, he took out the big sword from the quenching barrel, Abel flicked the sword surface with his hand, and the sound was very crisp, although the quality of this sword is not known, but the big sword has already been made.

Calling the servants to clean up the things in the operation room, Abel didn't want people to see what these things were associated with, and it was very dangerous for this world to invent and create.

"Gaden, can you help me find someone to make the sword handle?" Abel asked with some embarrassment as he found Garden who was busy.

Some of the handles were made of iron and wood, some of them were made of horns or other harder materials, and the craft of carving the handles of the swords was not learned by Abel, so he had to come to Calden for help.

"Is this the first great sword you have ever made?" Garden took the great sword from Abel's hand, looked at it carefully, and said in an excited and somewhat hoarse voice, "This is the Great Sword of Hundred Training? ”

Garden has been studying here with Master Bentham for five years, and he can only forge 60 practices, and 100 practices have always been Garden's dream.

"Young Master Abel, you are really a genius. Garden complimented heartily, then gently stroked the blade of the sword with his hand, as if he had found something, flicked the back of the sword with his fingers, and pressed his ear to the back of the sword to listen carefully to the echo of the great sword.

"This can't be, how can this happen?"

The performance of this sword is a hundred practice, but the hardness of the sword body is much higher than that of ordinary hundred practice swords, Master Bentham will make a hundred practice swords every month, these hundred practice swords are one of the sources of Harry Castle's wealth, Garden not only watched the master practice swords, but also maintained these hundred practice swords, so the familiarity with the hundred practice swords is much higher than others.

The surface of Abel's great sword is very peculiar, very different from the Bailian great sword that the master usually makes, and Garden can't tell what the difference is, but experience tells him that this sword is better than other Bailian great swords.

To verify this, Garden slashed his greatsword into a block of wood intended for fuel, almost effortlessly, and the greatsword slid through the cream like a hot knife, silently splitting the block in two.

"How did you make this great sword?" said Calden, a little impatient, wondering about the sword.

"I just forged according to your guidance, and Master Bentham helped me when I was in trouble. Abel explained.

Garden seemed to misunderstand that this sword was so good because Master Bentham helped Abel complete the final part, and he couldn't help but secretly resolve that he must learn from the master well, and he could forge such a weapon himself in the future.

"I've collected some very good horns, just to use as the handle of the big sword, I'll help you install it at night, and help you with the scabbard, can this sword stay with me?" Garden's idea is very simple, the forging method of this sword is very strange, and it is very beneficial for me to keep it for a night to study it carefully.

Gaden did not sleep all night, mounted the handle of the sword with the best horns, and found a crocodile scabbard, and spent the rest of his time carefully observing the strange greatsword in front of the oil lamp.

In the morning, Garden came to the blacksmith shop with the big sword, and he was greatly surprised by the observation of the night, if it were not for fear of breaking Abel's sword, he would have wanted to take this sword and slash it with the hundred practice swords in the master's warehouse.

"Garden, what's wrong with you?" Master Bentham couldn't help but wonder when he saw Garden's eyes red, how it was as if Garden, an honest man, hadn't slept all night.

"Master, I don't understand the sword you made for Abel, I thought about it all night yesterday. Touching his head, Garden looked at Master Bentham with some embarrassment, wondering if he was too stupid.

Master Bentham took the big sword, pulled out the big sword, and said: "This is the big sword forged by Abel yesterday, I just instructed him how to exercise the hundred practice rough blanks the day before yesterday, and when you reach the bottleneck of 80 practice, I will also teach you." ”

"This is the big sword, the one forged by Abel?" Master Bentham was also a little surprised, the master's experience is much higher than that of Garden, the technology contained in this big sword can be said to be a family's secret art, a secret technique to improve the hardness and sharpness of the weapon, although the master is very tempted by such a secret technique, but he knows that to spy on a family's secret art is to form a mortal enmity with that family, whether this secret technique is the Harry family's or the Bennett family's.

No wonder Abel asked for a separate operation room yesterday, it turned out that Abel was going to use the family secret technique to refine the big sword, which can understand Abel's behavior.

Master Bentham warned Garden not to ask Abel about it, as if it had never happened.