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前言众所周知,燃煤反射炉在1150℃的炉气气氛,要达到CO_2/CO≤0.3, H_2O/H_2≤0. 8,金属的烧损量在0.5％以下,到目前为止还有一定的困难。固体燃料是由C、H、O、N、S及灰分所组成,灰分是SiO_2、CaO、Al_2O_3、MgO、Fe_2O_3及SO_3等氧化物所组成。煤的一般含水量约5％,在过量空气燃烧下,炉内气氛呈氧化性,其金属烧损量每火在2.5％以上。我国民用工业大部分采用燃煤反射炉,随着少无切削工艺的发展,不少锻件要求毛坯精化,这就提出
Preface As we all know, coal fired furnace at 1150 ℃ gas furnace atmosphere, to achieve CO_2 / CO ≤ 0.3, H_2O / H_2 ≤ 0. 8, the metal loss in less than 0.5%, so far there are some difficulties. Solid fuel is composed of C, H, O, N, S and ash, the ash is composed of SiO 2, CaO, Al 2 O 3, MgO, Fe 2 O 3 and SO 3 oxides. The average water content of coal is about 5%. Under excessive air combustion, the atmosphere in the furnace is oxidized, and the metal loss is more than 2.5% per fire. Most of China’s civilian industry using coal-fired furnace, with no cutting technology development, many forgings require rough refining, which put forward