Chapter 255 Collaboration
Of course, Wu Tong didn't let himself have a headache for too long.
She is not alone. She already has her own small team and the country as a backing. With so many big names in the field of mechanical engineering in China, she doesn't believe that she can't overcome this difficulty if they concentrate their efforts. If that doesn't work, she can just study mechanical engineering from scratch and develop and design it herself.
There are always more solutions than problems. The big guys in China have sharp eyes and a ruler. They can deduce the real thing based on toys. They can copy the big ones based on the purchased products and optimize and upgrade them. She is still looking forward to those top big guys.
The material model and preparation process design have been perfected. Her most important task now is to produce the product in the laboratory and then test the data. She will use the data to ask her superiors to arrange concentrated efforts on the equipment to overcome the problem.
"Teacher, ask Brother Xu Taoran to prepare for the carbon fiber composite material experiment!" Wu Tong dialed the phone and began to make experimental arrangements. Her subordinates kept collecting her manuscripts. These things had to be encrypted and saved and brought into the laboratory. "Please ask Dr. Zhang Qian to come to my office in ten minutes to discuss matters!"
Zhang Qian's information review went smoothly, and he successfully entered Wu Tong's laboratory three days later. He signed the confidentiality agreement again and vaguely learned about Wu Tong's major achievements in materials. He felt doubly honored to be able to join such a top team and had deep respect for my God.
Before he knew it, Wu Shen's achievements in mathematics had already made him admire him like a torrent of water. After signing the confidentiality agreement, Zhang Qian became even more determined. From then on, he was a brick under Mr. Wu, and he would be moved wherever he was needed. He worked hard to improve himself, just to not hold Wu Shen back.
An Wenshu, carrying the manuscript confidentiality box and Wu Tong, under the covert protection of a group of people, had just entered the Institute of Materials Science and Engineering when Cheng Huanan, who was looking forward to it, along with Ruan Chengxu, Tao Ran and Zhang Qian, were already waiting at the entrance. When they saw Wu Tong, they couldn't help but come forward to greet him.
"Wu Tong, have you made a breakthrough?" Wu Tong told him that his latest goal was to conquer carbon fiber composite materials. Two days after saying this, Wu Tong went into seclusion.
Wu Tong's retreat was a well-known breakthrough in the eyes of those who knew Wu Tong's abilities in the top research circles. Cheng Huanan had been looking forward to it for ten days since Wu Tong's retreat.
He was very eager to see the progress of China's new materials, but he didn't dare to ask too urgently so as not to bring scientific research pressure to Wu Tong.
"Teacher, we have lived up to your expectations. We have made a breakthrough and designed the material model. The details still need to be verified by experiments!" Wu Tong smiled at the teacher with certainty and reported promptly.
Although Cheng Lao was willing to help Wu Tong to move forward and did some auxiliary work on his own initiative, Wu Tong never regarded the old man as an assistant, but as a pillar of support.
"I will communicate with Dr. Zhang about the direction of equipment improvement, and then we will start the experiment to prepare materials and test performance!" The performance of the successfully prepared materials can be seen most clearly from the test results, so Wu Tong does not need to elaborate on it here.
"No problem, the laboratory is fully prepared and waiting for your instructions at any time!" Cheng Huanan assured. At such an important moment, he would definitely cooperate with all his strength and would never fall behind.
"Dr. Zhang, I need you to adjust the high and low temperature carbonization furnace and the wire-reeling and -releasing system in the laboratory. The effect I want to achieve is... I need you to cooperate with me in making these adjustments. Is that okay?"
Before preparing for the experiment, the parameters should be adjusted according to the existing instruments of the institute and the small-scale material preparation instruments that were ordered in advance. At present, it is just a test, not a large-scale production. After the laboratory instruments are adjusted, the experiment can basically be completed.
"No problem, Mr. Wu, I'll start right away!" Zhang Qian responded straightforwardly. Opportunities are reserved for those who are prepared. After he officially joined the company, he just happened to catch up with the arrival of new equipment in the laboratory. In order to better assist the team, he started with the new instrument and gradually learned about the performance and structure of the experimental instrument in detail.
Each of the lab's precision instruments was expensive, so he certainly couldn't disassemble them to play with. He tried his best to piece together and explore various instruments from the instrument manuals, the Internet, and even from the vendors. He didn't have to know these instruments by heart, but he had to be as familiar with them as possible.
Hard work pays off, and it comes in handy now.
After Zhang Bo's efforts and Wu Tong's precise parameter requirements, the instrument was adjusted in half a day. With Wu Tong's call to start the experiment, the experimental team began to operate. This experiment was led by Wu Tong, with Cheng Huanan as the deputy, Tao Ran and Ruan Chengxu as the assistants, Zhang Bo as the instrument operation support, and other personnel temporarily stepped back to serve as backup support.
"Let's start. Tao Ran, Brother Xu, prepare polyacrylic acid..."
The experiment officially began, and several experimenters prepared the precursor silk step by step according to Wu Tong's instructions. The precursor silk began to undergo pre-oxidation treatment, which was to transform the linear molecular chain of the precursor silk into a heat-resistant ladder structure. At the same time, it also played the role of fixing oxygen and carbon for the subsequent carbonization process.
"The temperature is maintained uniformly at 242 degrees Celsius!" Wu Tong stared closely at the experiment and made precise adjustments to the data.
This temperature is the optimal pre-oxidation temperature for this material. At 242°C, Zhang Qian overcame difficulties and built a pre-oxidation treatment furnace according to her requirements. The oxygen content rose sharply and a chemical reaction occurred in it.
Eighty minutes later, a series of reactions such as cyclization, oxidation and dehydrogenation occurred. During this process, PAN lost a large number of small molecules under chemical reactions and underwent structural changes.
They checked the required conjugation reaction and the pre-oxidation was successful!
After pre-oxidation, the raw silk becomes further pre-oxidized silk. The color changes from the initial white to light yellow, beige, light brown, dark brown, and finally to black.
"The current oxygen content of the pre-oxygenated yarn is 8.78%!" After testing, Tao Ran accurately reported the experimental data.
"Begin the next step of low-temperature carbonization process!" Wu Tong gave another instruction, and the experimenter on the operating table followed the instruction accurately. Wu Tong divided several temperature intervals between 300-800℃, and gradually carried out carbonization reaction on the pre-oxidized wire under the condition of air isolation, forming the initial turbostratic graphite structure.
"Operate with caution, keep the exhaust port unobstructed, and be careful of waste gas and hot oil!" At this stage, the pre-oxidized silk undergoes thermal decomposition and polycondensation reactions, which will produce a lot of waste gas and tar, which must be removed in time through the exhaust port to ensure the stability of the experiment.
The low-temperature carbonization is gradually completed, followed by high-temperature carbonization of 1400-2000℃. The balanced temperature control will be maintained at around 1800℃, and the turbostratic graphite structure will be formed. At this time, the molecular structure has undergone the changes she expected.
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