The more Azul thought about it, the more excited he became, and he actually had the opportunity to come into contact with the casting three-foot bronze sword. Pen, fun, and www.biquge.info

"At what point did you fail?" asked Azul hurriedly.

"Neither of these problems was overcome, so the sword was forged, but it was far from meeting the requirements of the city lord, and it also fell short of the goal we had set for ourselves. Li Yuan said casually.

"Have you tried both casting and forging, and many different copper-tin ratios?, and the bronze sword that was cast was either too rigid and easy to break, or too soft and easy to bend?" said Azul what he thought in his mind.

"Almost! We worked day and night, two furnaces, one casting, one forging, and tried more than a dozen different copper-tin mixing ratios before and after, but it was still not possible. We couldn't practice the sword we were satisfied with, and the lord couldn't get the sword he wanted, so I was locked up here. Therefore, the city lord is on the list to recruit talents, and he is looking for good talents to cast swords. Liyuan said explanatorily.

"Liangcai, how can it be so easy to solve? The current level of sword casting, casting a two-foot bronze sword is barely about the same, and to cast a three-foot bronze sword, the difficulty is increased by more than ten times!"

Azul didn't care how far away he answered, and paced and thought alone. The most important thing is to control the proportion of copper and tin, the two-foot sword needs to be sharp, and is not afraid that he is too soft and easy to bend, so the proportion of tin should be lower, and according to the width of the sword, choose three different tin ratios to try one by one. As for the three-foot sword, the length has increased, and the proportion of tin must be increased, which will inevitably bring the associated problem of too soft bending. Azule had studied in the Bronze Division for less than a year, and he had hardly seen anyone forge a bronze sword that reached or exceeded three feet, and even Master Cell, he didn't even mention the method of casting a three-foot sword.

Azule thought about the words "casting method" repeatedly, and suddenly a flash of inspiration flashed in his mind, thinking of the pillar in the bronze smelting room of No. 23, and the strange marks carved on the pillar. I didn't understand it at the beginning, so I memorized it completely by memory. There are a variety of casting methods mentioned above, among which is the casting process of "cartilage and hard skin". As the name suggests, "cartilage crust" is a combination of two copper-tin ratios, which can not only solve the problem of length, but also forge a sharp sword. Although the specific method still needs to be explored, Azule is already excited when he thinks of this, and rubs his hands again and again, both nervous and expectant.

"I came up with a solution, to be precise, a way that I could learn from my ancestors, to solve the problem of casting a three-foot bronze sword. Before the excitement of Azule was over, he grabbed the iron door with both hands and said to Liyuan.

"What's the solution? Let's talk about it first, otherwise both of us are now prisoners, and it will be difficult to get out, let alone experiment with new forging methods. Compared to Azule's excitement, it was much colder than Far Away, for nearly a year, the Sword Forge Workshop tried too many methods, and all of them failed without exception.

"Hahaha, I know you don't necessarily believe me, but I can tell you a train of thought first. Ordinary people are trying to add tin ratio, seeking a compromise between too soft and too hard. So have you ever tried to combine the two methods of casting too soft and too hard? For example, 'cartilage hard skin' or 'hard skin cartilage'. Instead of being upset in the face of distrust, Azul mysteriously revealed his new method of forging.

"Seek a compromise between being too soft and too hard, and seek a compromise...... Two into one, two into one......" Listening to Azule talk about forging a sword was like grabbing a life-saving straw, but now the other party introduced himself to a new method of forging and refining that he had not tried, and he suddenly fell into deep contemplation as if he was fascinated.

Azul didn't bother pacing and contemplating far away, since he had introduced him to the idea of a new sword-forging method, let him confirm it by thinking about it, and what he had to do was to recall the details and proportions of the "cartilage crust".

After a long time, he stopped pacing, his hands firmly grasped the railing of the iron gate, his eyes shining brightly, and said to Azul: "This is a new idea that has never been tried before, I need to verify it, of course I also need specific details and copper-tin ratios, I hope you can help us, and this may be the only chance for you and me to get out of the dungeon." How?"

In fact, Azule just waited for the distance to decide, first, to find an opportunity to go out, and second, to try and verify the new sword-forging method he had learned from the pillar of the copper smelting room. Azul asked rhetorically, "How are we going to get out?"

"I need to ask the jailer to help me bring a message to the Copper-headed Tiger, just say that you have unveiled the sword refining list and have a new sword forging method to offer!" said to Azul.

"Who is the Copper-Headed Tiger, whoever he is, as long as I can get out, I'll help you try this new sword-forging method!" replied slowly.

"The Copper-headed Tiger is one of the 'Four Tigers' under the City Lord, ranking third......", "Cell Boss...... The cell boss ......", and while explaining to Azule who the copper-headed tiger is, he shouts to the cell boss, hoping to lure the cell boss in and ask the other party to take the other party.

Liyuan shouted for a long time, and there was a response from above, and a cell boss walked down the dungeon very impatiently, and reprimanded Liyuan and Azule very impatiently, until Liyuan General Azule offered a new sword-casting method, and he calculated that it was very likely to solve the current sword-casting problem, and now it is urgent to verify it on the spot, please report to the copper-headed lord, if you can succeed, there will be benefits, etc. The cell boss threatened and scolded again, but it was a matter of the city lord's sword-casting, so he didn't dare to be careless, and went to report to the copper-headed tiger slowly.

After most of the day, the cell leader led a group of soldiers into the dungeon, opened the iron doors of the two cells, and said to Liyuan and Azule: "The copper-headed lord is merciful, let the two of you make meritorious deeds, as long as you can successfully forge the sword, you will be rewarded heavily." This group of soldiers will go back to the sword forge with you, and from now on protect your safety, Lord Copperhead said, only give you three days, after three days you must hand over the sword, if you can't hand over the sword, hmph!

Azule didn't say much, and only replied coldly, "The sword will be successfully forged in three days!", and the two of them left the dungeon with a group of soldiers, and returned to the swordsmithing workshop under surveillance.

A group of soldiers who followed guarded the front and back doors and several low courtyard walls, knowing that they were being watched rather than protected, and the two of them did not care, and led Azul through the door from a distance.

More than ten years ago, his father led a group of people to settle in Kestrel City, built this sword-casting workshop, and made a living from it. Later, his father died early, and only his mother was left alive, and the city lord imprisoned his mother in the city lord's mansion in order to continue to use the swordsmithing workshop for his own use. Three years ago, the city lord ordered the sword casting workshop to cast a three-foot bronze sword, and named it the Heavenly Sword, for three years, the sword casting workshop cast swords day and night, but it was unsuccessful, so he was imprisoned far away.

The uncles and brothers of the Sword Forge Workshop were overjoyed when they saw that they had come back on their own. Away from afar, he introduced Azule to everyone, and told Azule of the new sword-casting method and the copper-headed tiger promised the swordsmith to try to cast a sword for the last time, and so on, hoping that everyone would cooperate to not only complete the city lord's request to rescue his mother, but also regain the gold-lettered signboard of the swordsmith's "all-encompassing casting, all-encompassing" of the swordsmithing workshop.

When everyone heard this, they were eager to try, and they were determined to make a big effort to forge a sword.