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机械工厂的加热设备,尤其是锻造车间的加热设备,多是工作温度在1250～1350℃之间的各种火焰加热炉。加热炉的耐火砌体内衬,一般由粘土砖砌成。加热炉工作条件最恶劣的部位是拱顶。由于各种炉子的结构不同,拱顶由长拱(室式炉、台车炉等的主炉拱)和短拱(炉门拱、压火拱和承托拱等)所组成。在使用过程中,短拱的寿命往往比长拱短得多,被迫停炉修理的也多是这
Machinery factory heating equipment, especially forging workshop heating equipment, mostly operating temperature at 1250 ~ 1350 ℃ between the various flame furnace. Furnace refractory lining, generally made of clay brick. The worst part of the furnace working conditions is the vault. Due to the different structures of various furnaces, the vault consists of long arches (main furnace arches of chamber furnaces, trolley furnaces) and short arches (furnace door arches, pressure fire arches and support arches, etc.). In use, the short arch life is often much shorter than the long arch, was forced to stop the furnace repair is often this