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气体渗碳量的调节: CaHm+(n/2)O+1.83n·N2→nCo+(m/2)H2+1.88n·N2…………(1) 2CO=〔C〕+CO_2…………(2) H_2+CO_2=CO+H_2O…………(3) CH_4=〔C〕+2H_2…………(4) CH_4+CO_2=2CO+2H_2………(5) CH_4+H_2O=CO+3H_2………(6) 式(1)表示做为气体渗碳基本气体的生成反应:通常用丁烷丙烷甲烷等饱和碳氢化合物。在1000℃以上高温下,通过Ni触煤进行的反应。该反应初期是放热反应,但后期是吸热反应,总的来说是吸热反应。反应生成气体中,含有微量的H_2O·CO_2·CH_4
Adjustment of gas carburizing amount: CaHm + (n / 2) O + 1.83n · N 2 → nCo + (m / 2) H 2 + 1.88n · N 2 (1) 2CO = [C] + CO 2 (2) H_2 + CO_2 = CO + H_2O (3) CH_4 = [C] + 2H_2 (4) CH_4 + CO_2 = 2CO + 2H_2 CH_4 + H_2O = CO + 3H 2 Equation (1) shows the formation reaction as a basic gas for carburizing gas, in which a saturated hydrocarbon such as butanepropane methane is usually used. The reaction is carried out by coal contact with Ni at temperatures above 1000 ° C. The initial reaction is exothermic reaction, but the latter is endothermic reaction, in general, endothermic reaction. The reaction gas, containing traces of H_2O · CO_2 · CH_4