Chapter 744: High-Temperature Superconducting Coils
Sticks and carrots are always the best combination, and in a desperate situation, most of the small steel mills in Xingchuan County accepted Qin Hai's proposal. They freely combined according to their relatives and relatives from near and far, and on average, more than a dozen enterprises were combined into one, and with the original equipment and backlog of raw materials as collateral, they applied for loans from Qin Hai to update their equipment, purchased second-hand equipment, and established a number of new-type steel mills with a certain technical level and reached the production scale stipulated by the State Economic and Trade Commission.
During the period when the steel was seized by the working group, many small bosses borrowed usury because of insufficient funds, which became a problem for them. Qin Hai borrowed the hand of Guo Qiushi to carry out a special operation to crack down on usury in Xingchuan County, smashed several gangs that specialized in usury for profit, and helped small bosses get rid of the nightmare of usury. This move won him a lot of praise among small bosses.
Li Linguang brought a group of students to provide technical guidance to the new steel mills in Xingchuan and help them get on the right track quickly. The energy consumption and raw material efficiency of the new steel mill are much higher than those of the previous small workshops, and the profit margin is much higher than the original level due to the reliable quality of the products, and the price of the finished steel products is much higher than that of the previous strip steel. At present, the domestic steel market is still in short supply, and the products of these new steel mills are not worried about sales, and their benefits can almost be described as making money every day. In this way, the last bit of mustard in the hearts of the little bosses is gone, and everyone regards Qin Hai as their savior.
Of course, there are people like Lu Quanlin who recognize a dead reason and resolutely refuse to cooperate with Qin Hai. For these people, Qin Hai didn't bother to care about them, and let them fend for themselves. Lu Quanlin originally planned to take advantage of the new steel mills in the county to continue to develop some strip steel. The fish are shipped out and sold for money. Who would have thought that the newly established steel mills in Xingchuan County jointly set up an industry association to inspect the steel products shipped out of Xingchuan County, and they were not allowed to leave the country if they did not meet the standards. Although Qin Hai's working group was withdrawn, Lu Quanlin and some other remnant strip steel enterprises were still unable to operate, and eventually inevitably embarked on the road of bankruptcy.
The successful experience of small iron and steel transformation in Xingchuan County has been quickly promoted. A vigorous campaign to seize strip steel has been set off all over the country.
No matter how tightly hidden those strip steel production enterprises are, their products will eventually be transported on the road. The Economic and Trade Commission, together with the public security and armed police departments, has set up a number of checkpoints in areas where strip steel is flooded to inspect the steel products transported in the past, cutting off the passage for strip steel to be transported abroad. This hand is both simple and effective, and soon put the strip steel production enterprises everywhere into a desperate situation.
Subsequently, the Iron and Steel Enterprise Upgrading and Transformation Foundation led by Daqin Group began to intervene, relying on the strong financial resources of Daqin Group, the Foundation facilitated the merger of thousands of strip steel enterprises to carry out technological upgrading. Let it embark on the path of benign development.
At the same time, the steel industry alliance with Daqin Group as the core has gradually taken shape, and only those small steel enterprises that have received funding from Daqin Group have joined the alliance at first. With the growing momentum of the "Steel Alliance", some private iron and steel enterprises with a certain scale have also chosen to join it, in order to obtain the protection of the alliance. Li Linguang, a metallurgical expert, was hired as the honorary chairman of the Iron and Steel League, and Song Hongxuan served as the chairman of the Iron and Steel League, responsible for specific work.
Qin Hai naturally couldn't participate in these cumbersome affairs one by one. He developed a model for solving problems. This is a huge contribution. After reading the internal reference on the management of small iron and steel in Xingchuan County, the chief happily wrote a large paragraph of instructions. He spoke highly of the work of Qin Hai and the Economic and Trade Commission, and there is no need to elaborate on these matters.
During the period when Qin Hai was concentrating on the integration of the steel industry, Daqin Group's other work did not stop, and the most encouraging of them was the major breakthrough in the research of iron-based superconducting materials presided over by Ning Ning, whose team doped rare earth elements with iron and selenium compounds. Superconductivity was acquired in a "high-temperature" environment of 240 K, setting a new record for high-temperature superconductivity.
The temperature of 240K is converted to the temperature of Celsius, which is equivalent to minus 30 degrees, which is for the human living environment. It is extremely cold. But for superconducting materials, being able to achieve superconductivity at a temperature of 240K is already a remarkable achievement. The critical temperature of traditional superconducting materials is only more than 100 K at most, and liquid nitrogen is required to maintain low temperatures. When the critical temperature is increased to 240K, the cryogenic medium only needs to use liquid carbon dioxide, ammonia, etc., and ordinary household refrigerators can produce such low temperatures, which greatly reduces the application cost of superconductivity and greatly expands the application field of superconductivity.
The research and development of high-temperature superconducting materials with a critical temperature of 240K is certainly not achieved overnight. Tranquility led a team of hundreds of people, and after four or five years, experimenting with tens of thousands of materials, it was only then that such results were obtained. According to Tranquility, every 1 degree increase in the critical temperature of the superconducting materials they studied costs tens of millions of yuan. There is no other laboratory in the world with such strong financial support, so it is not surprising that this material ended up at Jingcheng University.
The advent of iron-selenium superconducting materials has set off a new round of superconductivity research boom around the world. Governments and enterprises are aware of the new opportunities brought by high-temperature superconductivity to science and technology, national defense, industry and other fields, so as to change the previous half-believing attitude towards superconductivity research, and compete to invest manpower and material resources in an attempt to occupy the peak of superconductivity applications.
As the inventor of iron-selenium high-temperature superconducting materials, Tranquility has naturally become a sweetheart, and countless academic conferences have sent her invitations, and many companies have offered high honorariums to hire her for technical guidance. She was busy dealing with all kinds of requests all day long, and she flew almost more often than others took taxis, so much so that if Qin Hai wanted to see her, he had to rush to this secret naval base on the coast of the East China Sea.
"Haha, it turned out that Mr. Qin was here, which really made us shine here."
Zhou Linlei, chief engineer of the Navy, personally came to the gate of the base to greet Qin Hai, and joked with a smile as soon as they met.
"There's no way, my wife is being detained here by you, can't I come to visit?" Qin Hai said with a smile while shaking hands with Zhou Linlei.
Zhou Linlei said apologetically: "I'm really embarrassed, we left Xiao Ning here to help us do research, so that Mr. Qin had to come over to visit in his busy schedule." But there is no way, in terms of superconducting materials, we have no professionals, so we can only rely on Xiao Ning to help us. ”
"That's as it should be." Qin Hai said, and after speaking, he asked in a low voice, "How is it, Chief Engineer Zhou, is it going well?" ”
Zhou Linlei also lowered his voice, with an excited look on his face, and said: "It went very well, the results of the ground experiment fully met the expected requirements, and it won't be long before the ship can be tested." ”
"Great, it seems that the time for our aircraft carrier to come out can be greatly advanced." Qin Hai said happily.
This base of the Navy is dedicated to the study of aircraft carrier catapults. Previously, the catapults on aircraft carriers were driven by high-temperature steam, and the structure of the device was complex, and the construction and maintenance costs were very high. Countries around the world are actively researching electromagnetic catapult technology, but they are all facing a series of technical bottlenecks.
Zhou Linlei studied electromagnetic catapult in his early years, because the key technology has not been able to make a breakthrough for a long time, so electromagnetic catapult has always been just a concept and has not been formally developed. After the development of supercapacitors in the School of Materials, Zhou Linlei realized that the time was ripe for the development of electromagnetic catapults, so he persuaded the upper echelons of the Navy to start the research work on electromagnetic catapults. The emergence of high-temperature superconducting materials has removed the last obstacle in Zhou Linlei's development of the electromagnetic catapult system for carrier-based aircraft, making the advent of aircraft carriers close at hand.
The principle of electromagnetic catapult is not complicated, it is the use of the principle of homosexual repulsion of magnets, through the current in a coil, so that it produces strong magnetism, and pushes the traction slider to move at high speed, so as to eject the carrier-based aircraft.
In an electromagnetic catapult system, energy storage and coils are two key difficulties. The electromagnetic catapult needs to eject an aircraft weighing tens of tons in a very short time, and the energy storage device is required to be able to provide a strong current in an instant, and the coil is also required to be able to withstand such a large current. The technology to solve the former difficulty is supercapacitors, and to solve the latter problem, it is necessary to use high-temperature superconducting materials.
Solenoid coils made of superconducting materials have no resistance, so they do not generate high temperatures when extremely large currents pass through them, which is an advantage that ordinary wires do not have. As early as a few years ago, Qin Hai predicted the emergence of high-temperature superconducting materials to Zhou Linlei, and Zhou Linlei also designed electromagnetic coils according to this prediction. After Ning Ning researched the high-temperature superconducting material of iron and selenium, Zhou Linlei immediately contacted her and invited her to the naval base to assist in the development of superconducting coils.
These circumstances, of course, are highly confidential to outsiders, but in front of Qin Hai, there is no problem of confidentiality. The two key problems of electromagnetic catapult were solved by Qin Hai with Zhou Linlei's help, so why did Zhou Linlei need to keep it a secret from him.
Under the guidance of Zhou Linlei, Qin Hai walked into the heavily guarded experimental workshop. As soon as he entered, he saw a group of people busy around a huge device, one of them wearing overalls, explaining something to a few people, it was the tranquility he hadn't seen for many days. (To be continued......)