[Sixth update, for this chapter, everyone still has to thank the God of Smoke and book friend Sha Huaichu].
He successfully learned the Golden Light Technique, his attributes changed drastically, and he gained the legendary internal power...
There are changes every day, and there are gains every day. Because Lu Zhenyuan used sudden measures to reverse the depression of the war situation, it dissipated unknowingly.
Returning to the competition field, Lin Tuo is once again full of fighting spirit. So what if you can really achieve a hundred refinements? Due to Tong Xi's initial strength, you chose a piece of soft iron material. Even if it is refined a hundred times, it cannot reach the level of a legendary sword.
With thousands of years of accumulated experience and high-end modern metal craftsmanship, are you really afraid of it?
Recalling reading the metal craft textbook, using the mathematical tools in the bronze mirror to calculate the exact MS point for pouring the iron material, and drawing the optimal crystal phase cooling curve based on the iron material composition, Lin Tuo placed the water pot on On the stove, firewood was lit, and someone filled the oil pan with water in a small basin, filling it with saltpeter to absorb heat and lower the oil temperature.
Of course he knows more advanced technologies, such as graded quenching and isothermal quenching, but both require special salt, alkali and pressure equipment.
Not to mention that there is no equipment at all, even if there is, it is only a solution to facilitate industrial production. Components such as salt, lye, animal oil and animal urine are never the focus. The focus is to insert the hot workpiece into a bath of different temperatures. In the liquid, temperature conversion and energy transfer will cause the workpiece's own temperature to follow a curve and reach the key MS point of metal crystal phase transformation.
This is a way to change the heat capacity of the solution by changing the ingredients. It is simple and easy to control, but it is far less accurate than calculating the heat conversion method in advance and directly changing the initial temperature of the quenching solution based on the shape, size and thermodynamic factors of the object!
Lin Tuo heated up the water pot and cooled down the oil pot. From time to time, he read the temperature of the solution displayed on the bronze mirror from the hole in his sleeve.
At this time, Tong Xi was still working tirelessly, and in the blink of an eye, it was almost a hundred times.
Quenching usually takes several hours, which cannot be changed by humans.
After quenching, you have to polish it. Depending on the strength of the grindstone and the strength of the workpiece, it can take hours or even days or months. Everything has to be calculated in advance. What tests the skill of the master is
Tong Xi was very powerful and could reduce the polishing time to an hour or even less, but Gu Xiaoyi couldn't, so Lin Tuo quenched it first.
Old Man Lu straightened up while holding on to the arms of his chair. Everyone else also held their breaths. Knowing that this was a crucial moment, the atmosphere in the hall suddenly became tense.
After two days of continuous watering, the sword blank in the furnace had taken shape. Gu Xiaoyi held the red iron bar with iron tongs and walked to the water pot cautiously, looking at Lin Tuo with hesitation in his eyes.
Success or failure lies in the next moment - the moment when you switch from the water pot to the oil pot.
However, the process starts from the second the iron bar enters the water, and there is no turning back or reversal.
Two full days of hard work, non-stop smoke and fire, patches of red skin, cooked and raw, raw and cooked, basins of cold water poured on the body, down the throat, or directly steamed , or turn into sweat and then evaporate, and in the past few years, being laughed at again and again, being despised again and again, the accumulated depression, melancholy, and struggle... are all contained in this three-foot-long red iron bar.
Gu Xiaoyi had so many hardships, blood and tears that he actually worried about gains and losses at the last moment.
After a moment's hesitation, a thin layer of gray formed on the surface of the iron bar, and the color turned slightly darker.
Lin Tuo bent down and filled a handful of firewood, and shouted: "Why panic, I'm here! Take it back and burn it again!"
At this moment, the best time has passed, and neither the iron temperature nor the oil temperature are in the best condition.
Therefore, this quenching is really complicated, and even with modern industry, it is impossible to exhaust the limit.
Gu Xiaoyi looked stunned, and turned back to the smelting furnace dejectedly with the sword blank under his arm...
The viewers took their seats with a sigh of relief. They were still a little uncomfortable with the abruptness of the quenching process. How could they understand that Lin Tuo was confident in the hardness of the steel body after quenching and did not dare to leave too little time, lest Gu Xiaoyi would be too busy polishing it.
Everyone was talking about how the drip irrigation method only dripped on one side of the iron bar, but the other side had not been touched by a drop of molten iron. If this continued, how could it be possible to produce a symmetrical sword?
Lin Tuo turned a deaf ear to this and only used a bronze mirror to continuously read the temperature of the sword blank, water pot and oil pot through the holes in his clothes.
In the blink of an eye, the temperature of the iron bar rose again, and the temperature in the pot reached the expected level. Lin Tuo summoned Gu Xiaoyi to start the second quenching.
Gu Xiaoyi learned the lesson from last time and did not dare to delay for a moment. He clamped the sword blank with the tongs and trotted into the pot.
"Chi!" As soon as the red iron bar was put into the pot, white mist evaporated, boiling bubbles surged, and the sound was astonishing.
Lin Tuo glanced at the iron bar and squinted at the reading on the bronze mirror. His eyebrows were burned by the steam and he didn't even notice. Until the iron bar gradually cooled and the red surface slowly turned black, he signaled Gu Xiaoyi to take out the sword blank and put it into the oil pan. .
The temperature of the oil pan is low, the sword blank is put into the pan, and there is another soft sound...
"Plop!" Just when everyone was holding their breath and focusing on the space between the two pots, the sound of a human body falling to the ground suddenly came.
Turning his head to look, he saw that it was Lu Zhenyuan who had lost his composure and fell down for some reason.
In fact, it is not difficult to imagine that the blacksmithing skills in the hall always ranked first, and he was the only one who could see how precise the timing of Lin Tuo's switching between the two liquids at this moment was, and how the sword blank behaved in the bath liquid. It's so perfect, it's normal to get carried away.
The disciples, disciples and grandchildren hurried to help, but Tong Xi got in front of them!
"Why are you helping me! Keep fighting, fight while it's hot, the outcome has not been determined yet!" The old man weakly pushed Tong Xi away, and fell back into his seat tremblingly, scolding.
With a haggard face and gray hair, he was originally in his forties or fifties, but at this moment, he looked like an old man in his sixties or seventies.
No, that's not right! He didn't age just for a moment. He has been aging for the past two days, slowly, bit by bit...
I remember that on the first day, he was full of energy and jumped up and down. On the second day, he was so lazy that he could hardly move and just talked. Especially in the end, he was helped by Tong Xi back to the room. Today, he even stood on his feet. I can't even stand still...
In an instant, the scenes of the past few days appeared in Lin Tuo's mind. All these abnormalities were connected together, plus the psychological analysis of the old man's personality, and the abnormalities he and Tong Xi showed at the same time...
So that’s it! Lin Tuo trembled and suddenly understood what was going on ahead, and what kind of winning tactics Lu Zhenyuan used?
does it worth? As for that? He looked at the old man with complicated eyes, and the fierce fighting spirit and dissatisfaction in his heart melted like snow!
Everyone who is obsessed with forging was an angel with broken wings in his previous life. Guys who would use this method to win really can't afford to be hurt!
