Liu Jianhui sneered disdainfully: "During the working process of this consumable electric arc furnace, the metal bar itself serves as the upper electrode. Under the action of the current power supply, an arc is generated with the lower electrode placed in the crystallizer. The high temperature of the arc is used to make the upper electrode itself

Melt and be quickly cooled and solidified in a water-cooled crystallizer to obtain an alloy ingot. This furnace is particularly suitable for melting titanium, zirconium, tungsten, molybdenum, tantalum, niobium and other active metals and refractory metals, and because it is generally under vacuum

The work is called a vacuum consumable electric arc furnace. Hey, college student, you don’t even know such a simple truth, do you?”

Lu Xin was too lazy to pay attention to this shameless villain. He turned to his professor and doctoral supervisor Lin Tao: "Professor Lin, you put dozens of metal raw materials in this furnace. If these raw materials are put together to form a high-entropy alloy, it will completely lose its conductivity."

, the upper electrode of this furnace has completely failed. If the furnace can emit an arc, doesn’t it mean it won’t work?”

"Has it completely lost conductivity? High-entropy alloys are completely insulated and completely resistive?" Lin Tao's eyes widened in surprise: "High resistance is indeed a major characteristic of high-entropy alloys. I want to find high-entropy alloys with high resistance characteristics.

But high-entropy alloys are still metals after all, not plastics, and cannot have complete resistance characteristics!"

Lu Xin's words awakened the dreamer, and the doctors Lin Tao led also started talking about it. What they talked about most was whether the high-entropy alloy formed in the furnace would become an ultra-high resistance alloy.

There are dozens of different high-resistance alloys in alloy materials, which are used to make resistance components, such as nickel-chromium-aluminum iron, nickel-chromium aluminum-copper, nickel-chromium-manganese-silicon, and nickel-manganese-chromium-molybdenum alloys. They are not mainly used to conduct current.

Instead, it uses its high resistance to limit or control the current in the circuit, such as resistive elements, resistance wires, etc. used in motors, potentiometers, standard resistors, potentiometers, slide resistors, etc.; manufacturing reflects strain, temperature,

Resistance alloys used for sensing elements of magnetic field, pressure and other parameters; temperature compensators, resistance elements in temperature measuring resistors.

Lu Xin also realized the slight error in his words from their discussion, and said with a smile: "I may not be talking about complete resistance, but ultra-high resistance. The resistance characteristics are close to ordinary insulating materials. If the professor doesn't believe it, you can take it out

A part of the high-entropy alloy solid was used for resistance experiments."

The furnace had been out of power for more than ten hours and had long since cooled down. Even so, the doctoral students carefully stopped pumping the vacuum, then destroyed the vacuum, then loosened the bolts connecting the lower electrode to the crystallizer, and started the spindle pulling device.

, drag out the ingot made of high-entropy alloy and put it into the instrument for resistance testing.

The test results were just as Lu Xin expected, the resistance was extremely high, almost close to that of insulating materials.

Now everyone understands that because those dozens of metal raw materials form ultra-high resistance high-entropy alloys in the furnace, the metal raw materials cannot become electrodes in the consumable electric arc furnace. Without the electrodes, the electric arc furnace will naturally not function normally.

Work.

The mechanics who repair the equipment and the personnel who manage the equipment only understand the equipment and do not understand the properties of high-entropy alloys. The people responsible for the research of high-entropy alloys do not understand the equipment. The two groups of people do not communicate actively when they are together.

The intellectuals who are engaged in alloy research are blaming the people in charge of the equipment. They worked together for more than ten hours and still couldn't figure it out.

Lu Xin had just detected the metallic properties of the high-entropy alloy in the furnace and found that the structure of the metal molecules inside was much looser, with large gaps between the metal molecules and mostly impurities between the molecules, so he boldly proposed the hypothesis of ultra-high resistance.

, it was confirmed that it was indeed the case, and it only took him less than half an hour.

Lin Tao looked at Lu Xin with admiration, stepped forward, held Lu Xin's hand tightly, and laughed loudly: "Gong Lu, if you hadn't reminded me, I'm afraid we would have gotten into a dead end and wasted time. Thank you so much!

"

Lu Xin very much suspected that it was because he fell into the furnace yesterday afternoon and absorbed the special energy in the metal material that the metal molecular structure in the high-entropy alloy was sparse and the conductivity of the high-entropy alloy was greatly reduced, so he

Remind Professor Lin: "The conductivity or resistance of the high-entropy alloy with this ratio may be unstable. How about you do another experiment with the same ratio?"

Lin Tao agreed with Lu Xin's judgment, and asked people to put in dozens of different metal materials according to the original proportions, turn on the power, connect the water lines of each vacuum pump, perform vacuuming, and then connect the water lines of each cooling point.

, made preparations before smelting, and then started test smelting, and found that the furnace could operate normally again.

"That's it! Well done!" Jiang Chunyu couldn't hide her excitement. She clenched her fist and hit Lu Xin hard on the chest.

It turned out that Jiang Chunyu had prepared for the worst and reported the damage to the vacuum consumable electric arc furnace worth five million to the group company and accepted criticism and punishment from the group company. However, he did not expect Lu Xin to turn the tide.

Prove that there is no problem with this machine.

Lu Xin touched his sore chest and wondered if this woman was also a mechanic. How could she be so strong? But looking at her thin skin and tender flesh, she didn't look like she was a mechanic.

He touched his slightly swollen face again, glanced resentfully at Jiang Chunyu, whose cheeks were glowing with excitement, and suddenly felt that she looked familiar, as if he had met her before.

He thought hard for a while, and finally remembered that he seemed to have met her at his alma mater, Jiangnan University of Science and Technology. She seemed to be a teacher at the University of Science and Technology. How could she come to Sanjiang Group?

Lu Xin took courage and asked: "Vice President Jiang, have you worked at Jiangnan University of Science and Technology before?"

Jiang Chunyu'e frowned: "How do you know?"

Lu Xin put on a sunny smile: "Vice President Jiang, I went to Jiangnan University of Science and Technology, and I have seen you in school before!"

"What level are you at?" Jiang Chunyu stared at Lu Xin doubtfully. As a beautiful woman who was often harassed by men, she never took any man seriously, let alone a passerby like Lu Xin.

Lu Xin had no impression at all.

"Teacher Jiang, I am a grade 09 graduate of the Mechanical College!" Lu Xin slowly remembered that Jiang Chunyu seemed to be a teacher of the Mechanical College.

Jiang Chunyu's eyes turned cold again when she looked at Lu Xin: "Two people came to your college last year, one is Ma Changle and the other is Xie Fei. It seems that you are not there!" She thought Lu Xin was lying.

"A few months ago, there was a vacancy in the company and we were in a hurry to hire someone, so I jumped here!" Lu Xin wrote lightly. He didn't want to say that Jiang Xueqing introduced him through the back door.

"That's it!" Jiang Chunyu's eyes showed a hint of warmth. She chuckled, clenched her fist again, and punched Lu Xin: "It doesn't disgrace our school, do it well!"

Jiang Chunyu turned around to communicate with Professor Lin Tao about the aftermath and ignored Lu Xin.

Lu Xin looked at Jiang Chunyu's back and touched his swollen face. He picked up the phone screen and took a photo. There were still five clear fingerprints. This cold and arrogant woman seemed to have not apologized for her slap. Humph, I
Chapter completed!