我们将醋酸钠放入气体渗碳炉内作催化剂,获得和固体渗碳时同样的效果。试验是在(?)—60炉内进行的,渗碳剂是煤油,渗碳温度是920℃,一般渗碳深度1.0～1.2公厘需要7小时;加入醋酸钠后,渗碳温度不变,渗碳时间只3小时,渗碳深度就达到1.1毫米,缩短了一年时间。表面碳量在共析左右,略低于不加醋酸钠的。每渗一炉用30 We will sodium acetate into the gas carburizing furnace as a catalyst, get the same effect and solid carburizing. The test is carried out in a (?) - 60 furnace, the carburizing agent is kerosene, the carburizing temperature is 920 ° C, the carburizing depth is 1.0 to 1.2 mm, and it takes 7 hours; after adding sodium acetate, the carburizing temperature is constant, Carburizing time of only 3 hours, carburizing depth reached 1.1 mm, shortened a year. The surface carbon is about eutectoid, slightly lower than without sodium acetate. Each infiltration of a furnace with 30