Star Farming, the eldest lady relies on alchemy to counterattack

Chapter 138 Basic Refining Knowledge
Ning Xuan felt a little amused as she watched these girls, who were always taking advantage of the situation, gather around her again. Lin Zhou and the others had been acting recklessly in the school for a long time, but they were all smart people. Although they were mischievous, they didn't cause any big trouble, so they were safe.

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 classes in? Why don't we take you there?" Huangfu Xinyue looked at Ning Xuan expectantly.

A few months ago, the girl was very thin and pale, but now she is full of energy and very lively. The main reason is that her brother Huangfu Heiyan takes care of the industry that Ning Xuan has set up in the City of Extreme Cold. 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's eyes were sparkling and she looked at her with admiration and respect, so she couldn't bear to offend the little girl.

She gave Lin Mo a subtle look that told him not to follow her, and smiled gently at Huangfu Xinyue, "I was just thinking of 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 doubtfully.

"No, it's an elective course. I just want to broaden my horizons." Ning Xuan replied.

"If you want to take elective courses, you can only go to the public classroom. That's the open class of the Alchemy Department, which teaches basic alchemy knowledge and the identification of common mineral materials. If you want to attend a small class from a certain 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 watch the open class first."

Huangfu Xinyue felt Ning Xuan's intimate attitude and was very happy. The group walked towards the weapon refining department classroom, chatting and laughing.

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 hurriedly 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 massive furnace, its fire blazing and crackling. The dancing flames seemed alive, dancing in the air. Around the furnace lay a variety of minerals, each in a dazzling array of shapes and colors. Some were smooth, gleaming with a metallic sheen; others were covered in patterns, like mysterious runes; and still others emanated a strange glow, clearly not ordinary.

There is a holographic projection screen in front of the classroom, which scrolls the origin, use, characteristics, and products that can be refined from various minerals.

Ning Xuan looked at the ores. Most of them had been pre-processed, removing surface impurities, cleaned, and cut into suitable sizes. She picked up a piece of ore and carefully observed its grain and texture, comparing its characteristics with the information she had read. Previously, Ning Xuan had only learned about these ores through literature, but now, seeing them in person gave her a more intuitive and profound understanding. The sight of so many different types of ores piled together was truly impressive. 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 originally noisy classroom immediately became quiet.

Huangfu Xinyue quietly introduced Ning Xuan, "This is Mr. Fan. He's a one-star weapon refining master. He's a very good lecturer. No wonder so many people came to class today."

Mr. Fan had a serious expression and a deep gaze. He glanced around the classroom, then walked to the stove in the middle and said, "Students, today we're going to learn the steps involved in refining a long sword. Let's take the black iron long sword as an example. I'll explain while you follow me. Anyone who succeeds, as is customary, can take their creation home. We'll also have a judging panel to select the top three entries. The first place winner can choose any three pieces of ore from around the classroom to take home. The second place winner can choose any two pieces, and the third place winner can choose one."

As soon as Mr. Fan finished speaking, the classroom instantly became lively. Although most of the items placed in the classroom were common minerals, there were also some expensive treasures among these common minerals that were worth a lot of money.

The positive learning atmosphere in the classroom suddenly became very 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 technology 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 hammers, 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 needed to find the answers themselves after class.

Ning Xuan followed Teacher Fan's steps and successfully refined a Tang sword.