Chapter 138 Basic Refining Knowledge
Ning Xuan felt a little amused as she watched these girls, who were taking advantage of the situation, gather around her again. It had been a long time since Lin Zhou and the others had been behaving recklessly in the school. However, they were all smart people, and although they were making trouble, they had not caused any major problems that could not be handled. That was why they were safe and sound.
However, judging from their behavior today, they have become more and more daring and even dare to openly tease women.
"Sister Ning, don't be angry with Xiaoyu and the others. Xiaoyu and the others just admire Senior Lin and they are speaking for Lin Zhou for Senior Lin's sake. In fact, they also dislike people like Lin Zhou. Sister Ning, are you a freshman? Which department are you going to attend? Why don't we take you there?" Huangfu Xinyue looked at Ning Xuan expectantly.
The girl who was very thin and pale a few months ago is now full of energy and very lively. Mainly because her brother Huangfu Heiyan manages the industry that Ning Xuan has set up in the Extreme Cold City. Huangfu Heiyan will collect the herbs and minerals that Ning Xuan needs there, and Ning Xuan will take time to go there to refine medicine, and then give it to Huangfu Heiyan to sell. In this process, Ning Xuan not only solved the problem of loss in the process of improving her proficiency in refining medicine at a low price, but also established her own industry.
Because of Huangfu Heiyan's kindness, Ning Xuan was very patient with Huangfu Xinyue. Besides, the little girl had bright eyes and looked at her with admiration and adoration, so she didn't have the heart to offend the little girl.
She gave Lin Mo a look that told him not to follow her, and smiled gently at Huangfu Xinyue, "I was just thinking about going to the Equipment Refining Department to take a look. If you know where to go, please show me the way."
"I know, Sister Ning, is your major in weapon refining?" Huangfu Xinyue asked puzzledly.
"No, it's an elective course, just to broaden my horizons." Ning Xuan replied.
"If you want to take elective courses, you can only go to the public classroom. That is the open class of the Alchemy Department, which teaches basic alchemy knowledge and identification of common mineral materials. If you want to listen to a small class taught by a teacher, I can find someone to ask for you." Huangfu Xinyue looked at Ning Xuan excitedly. She was looking forward to helping Ning Xuan in a small way.
Ning Xuan couldn't help but ruffle the little girl's hair and said, "Let's go and watch the open class first."
Huangfu Xinyue felt Ning Xuan's intimate attitude and was very happy. The group chatted and laughed as they walked towards the Equipment Refining Department classroom.
Chen Nan had only suffered some minor skin injuries and had just taken the medicine given by Ning Xuan. Seeing Lin Mo standing there dejectedly, he knew that Ning Xuan must have told him not to follow. He sympathized with Lin Mo for a few seconds and then quickly followed.
As soon as Ning Xuan stepped into the public classroom of the Equipment Refining Department, she was attracted by the scene before her.
In the center of the classroom stood a huge furnace, the fire was burning, and from time to time it made a crackling sound. The dancing flames seemed to have life, dancing in the air. Around the furnace, there were various ores, they were in various shapes and colors. Some ores had smooth surfaces, shining with a metallic luster; some were covered with lines, like mysterious runes; and some ores emitted a strange light, which was obviously not ordinary.
There is a holographic projection screen in front of the classroom, which scrolls the origin, uses, characteristics of various minerals, what products can be refined from them, etc.
Ning Xuan looked at these ores. Most of them had undergone preliminary processing to remove surface impurities, clean them, and cut them into suitable sizes. Ning Xuan picked up a piece of ore, carefully observed its grain and texture, and then combined its characteristics with the information she had read.
Ning Xuan had only known about these minerals through information before. Now, seeing the real objects, she had a more intuitive and profound understanding. At the same time, so many different types of minerals piled together looked very shocking. The Central Star Military Academy was indeed very powerful.
At this moment, the door of the classroom was pushed open, and an old man who looked to be in his sixties or seventies walked in. Behind him were two young men, who should be his apprentices or assistants.
After the old man entered the room, the originally noisy classroom immediately became quiet.
Huangfu Xinyue introduced Ning Xuan in a low voice, "This is Mr. Fan, he is a one-star weapon refining master, and his lectures are quite good. No wonder so many people came to class today."
Mr. Fan had a serious face and deep eyes. He glanced around the classroom, then walked to the stove in the middle of the classroom and said, "Students, today we are going to learn what steps are required to refine a long sword. Take the black iron long sword as an example. I will explain while you follow me. If anyone can successfully make it, according to convention, they can take their work away. At the same time, we will also conduct a selection to select the top three works. The first place can choose any three pieces of ore in the classroom to take away, the second place can choose any two pieces, and the third place can choose one piece."
As soon as Mr. Fan finished speaking, the classroom instantly became lively. Although most of the objects placed in the classroom were common minerals, there were also some expensive treasures among these common minerals, which were worth a lot of money.
The positive learning atmosphere in the classroom suddenly became popular.
Next, Ning Xuan followed the old man's steps and immersed herself in learning. She first designed and planned the shape, size and other parameters of the long sword, and determined the overall style and characteristics. Ning Xuan designed a Tang sword style based on the classic sword shape in her memory.
The next step is to select suitable ore materials. Different ores have different properties, such as hardness, toughness, thermal conductivity, etc. Ning Xuan doesn’t know much about various types of ores. For her first time refining tools, she chose the common black iron ore. The next step is to refine the selected ore to remove impurities and obtain pure materials. This step requires high-temperature smelting and special refining processes to ensure quality. Ning Xuan follows Teacher Fan’s steps, wraps the ore in tools, throws it into the furnace, and places it in the area with the highest temperature.
Ning Xuan looked at the calcined red ore, which had shrunk by about 1/3 compared to its original size. She then placed the refined material in a furnace and heated it to a high temperature, making it soft and plastic. She then used a hammer, pliers and other tools to repeatedly hammer and forge it, shaping it step by step into the initial shape of a Tang sword. Watching a long sword gradually take shape, Ning Xuan felt a sense of accomplishment.
Next, fine processing is carried out, and finally quenching treatment is carried out. The long knife is placed in a quenching medium for quenching to increase its hardness and strength and enhance its performance.
Mr. Fan’s explanation was very detailed. In many places he only talked about how to deal with things. As for the reasons for doing so, students had to look for the answers themselves after class.
Ning Xuan followed Teacher Fan's steps and successfully refined a Tang sword.
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