18CrMnTi渗碳件在RJJ-75-9T气体渗碳炉中用150～160滴/min定量滴煤油渗碳,经常出现工件表面浓度过高,碳化物级别达不到标准要求。为此我们改用变滴量渗碳法,提高了零件的质量。1.变滴量气体渗碳工艺众所周知,渗碳包含着分解、吸收、扩散三个基本过程。在渗碳过程中,渗碳温度、时间和渗剂滴量的变化直接影响三个基 18CrMnTi carburizing pieces in the RJJ-75-9T gas carburizing furnace with 150 to 160 drops / min quantitative carburizing drop of coal, often appear on the workpiece surface concentration is too high, the carbide level does not meet the standard requirements. To this end we use variable carburizing method, improve the quality of parts. 1. Varying amount of gas carburizing process As we all know, carburizing contains decomposition, absorption, diffusion of the three basic processes. In the carburizing process, the changes of carburizing temperature, time and the amount of penetrant directly affect the three bases