气体渗碳、碳氮共渗和软氮化热处理工艺,由于它工艺简单,易于操作,较少受材料的限制,而且工件的变形小(如7级精度以下的丝杆和6、7级齿轮经热处理后不需再进行加工即可使用),因此得到日益广泛的应用。把原仿苏井式气体渗碳炉进行局部改装,并添置一套性能可靠的滴量器,便可改造成为滴注式可控渗碳和碳氮共渗炉。采用此方法投资 Gas carburizing, carbonitriding and nitrocarburizing heat treatment process, due to its simple process, easy to operate, less subject to material restrictions, and the deformation of the workpiece is small (such as the following 7 precision screw and 6,7 gear After heat treatment without further processing can be used), so get more and more widely used. The original imitation Suijing gas carburizing furnace partial modification, and access to a set of reliable drip measuring device, can be transformed into a drip-controlled carburizing and carbonitriding furnace. Use this method of investment