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Quartz glass history

quartz glass abroad more than 160 years of history, 1839 Frenchman first with hydrogen flame fused quartz quartz glass, in 1902 the British used graphite rod is energized to get high (called single-rod electric furnaces) manufacturing quartz glass, 1940s invented the fused even furnaces, semiconductor technology and 1950s with the development of new electric light (need a lot of quartz glass), quartz glass it has rapidly developed. Because quartz glass production technology is difficult, until now able to mass production of quartz glass only country the United States, Germany, France, Japan, Britain, China and a few other countries. 
quartz glass of research began in 1957, before the establishment of the People's Republic is blank. 1956 National Science and Technology Development Plan formulated 12 years, requires the development of national defense needed 57 key research tasks, solve two bombs and one satellite with the new high-performance materials for the study of atomic bombs, missiles, satellites do physical preparation. Quartz glass is the first 26 and second 40 tasks designated to study the contents of the book, the task is assigned to the then National Building Materials Research Institute. The development of quartz glass can be divided into five phases 1957 and 1961 for the pioneering stage, the main method to study the manufacturing process; 1962-1966 for the formation of industrial phase, during which many military tasks to complete, civilian production and quality has greatly improved, has formed industry; period 1978-1988 for the reform and innovation, high-tech quartz glass, such as: LSI with high-purity quartz glass tube high temperature, high purity coating crucible, crucible arc discharge method, optical communications quartz glass, quartz glass laser are studied in this period and mass production; 1989-2000 for the introduction of foreign advanced technology, technological innovation, increasing the variety and yield period of great development, the most prominent is Donghai County become electric light quartz glass production base with an annual output of 6,000 tons of quartz glass (including quality product than 2,000 tons), greatly improve the quality and cost several times down significantly improved technical equipment. 40 years, the development of quartz glass faster to produce transparent quartz glass as an example: 1975 annual output of 172 tons, 31 factories need to use more than 60 resistance furnace production, poor quality tubes (equivalent to the current waste pipe ), and now two years even furnaces can produce nearly 200 tons, by 2000, annual production of transparent quartz glass tube 7000 tons (including high-quality products amounted to 3,500 tons), an increase of nearly 25 years, 40 times.

Quartz glass history 2017/10/31 15:38:57 Hot:
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