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过去苏式箱式电炉在工业中被广泛应用,但因耗电量大,故有“电老虎”之称,同类型炉子与国外相比十分落后,见表1。目前,国外在筑炉材料方面,已经普遍采用了新型耐火保温材料——陶瓷纤维及其制品,最高工作温度达1600℃,热容量只有耐火砖的十分之一,炉子升温快,节约燃料,缩短筑炉周期,是筑炉材料的一项重大革新。以1000℃工作温度的炉子为例,原用砖砌的炉体,厚度350毫米,而用陶瓷纤维只有100毫米。据英国工业
In the past Soviet-style electric oven is widely used in industry, but because of large power consumption, it is called “electric tiger”, the same type of stove is very backward compared with foreign countries, see Table 1. At present, foreign countries in the building materials, has generally adopted a new refractory insulation material - ceramic fiber and its products, the maximum operating temperature of 1600 ℃, the heat capacity of only one-tenth of refractory brick, furnace heating fast, fuel-efficient and shorten Building a furnace cycle is a major innovation in building materials. To 1000 ℃ operating temperature of the furnace, for example, the original brick furnace body, the thickness of 350 mm, while the ceramic fiber with only 100 mm. According to British Industry