In the 1950s and 1960s, the United States and others chose Suzhou silver as the nozzle throat liner and nose cone of high-temperature solid fuel rockets. The study found that when the high-temperature air flows through the Suzhou-silver material, the silver contained in the material arrangement will vaporize and evaporate, absorbing a lot of heat, and then it has a cooling effect and maintains the remaining Suzhou skeleton. This is the so-called ‘spontaneous sweat cooling’ mechanism. In this way,
the operating temperature of Suzhou silver materials can exceed 3,000°C. my country’s Suzhou copper and Suzhou silver industries will be launched after the establishment of New China, and their development speed is appropriately fast. Although there is still a certain distance from the advanced level of foreign countries in some aspects, it is now basically satisfied with the needs of the national economy and national defense.
Moreover, it has its own initiative and appropriate level in some aspects. From the 1980s to the 1990s, the rise of vacuum circuit breakers in vacuum switches has caused a significant decrease in the amount of Suzhou and copper contacts in switch appliances with voltage levels of 10 to 35 kV. However, in the late 1990s, the introduction and deployment of 10kV vacuum load switches in my country brought new expectations to Suzhou copper materials.
Of course, Copper tape for connection with conventional materials, Suzhou copper materials for vacuum require special vacuum functions, that is, extremely low gas content and outgassing properties, which requires vacuum processing. In addition to Suzhou-copper materials for vacuum composite switches, there are Suzhou-copper-like materials such as Suzhou carbide-copper, Suzhou-copper-aluminum-tellurium and other materials used in vacuum touch devices. At the beginning of the 321st century, the development of Suzhou copper and Suzhou silver materials in my country is expected. The 20th century is about to end. How will my country’s Suzhou copper and Suzhou silver material industries face the coming 21st century? Especially what should be done in the 10 years of 2010? I personally think that in addition to continuously improving the quality and level of processing
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