The basic principle of vacuum hot stove was born in 1972 at Zurich University of science and technology. In 1975, Japan TAKUMA Company developed a vacuum hot blast stove based on this principle, which was patented for invention. Later, it was gradually popularized all over the world. This technology was developed and developed by Korean enterprises, and Korean TAKUMA appeared one after another. 国内在80年代后期就有一些厂家研制真空热风炉，但由于技术方面成都收账问题，主要是无法解决热风炉在密封收账真空状态下水和铁发生电化学反应生成不相溶气体导致真空度不断下降成都找人公司问题，一直未得到推广。90年代韩国的生产企业相对进入中国市场，后期约在2003年国内的热风炉厂家开始生产真空热风炉。
In the late 1980s, some domestic manufacturers developed vacuum hot blast stoves. However, due to technical problems, it is mainly impossible to solve the problem that water and iron react electrochemically to produce incompatible gases in sealed vacuum, resulting in the continuous decrease of vacuum, which has not been promoted. In the 1990s, Korean manufacturers entered the Chinese market relatively. Later in 2003, domestic hot stove manufacturers began to produce vacuum hot stoves.
The vacuum state does not mean that the absolute pressure is zero, so long as it is lower than the external pressure, it can be called "vacuum". For example, when the vacuum hot stove is running, the shell is debugged as a vacuum state and maintained between - 375pxHg and 76mmHg.
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