气体渗碳常见问题及预防措施

Common Problems and Preventive Measures of Gas Carburization

对气体渗碳工艺进行了论述,结合生产实际情况,介绍了常见的渗碳质量问题并进行了原因分析,如渗剂不合格导致碳势不达标;工件表面污染、设备风扇故障或工件装炉量大均导致渗碳层不均匀;渗碳后操作不当导致工件表面脱碳;工件表面碳浓度高导致开裂;渗碳工艺不细化导致渗层超标。针对渗碳过程进行质量控制,从人员培训、工艺材料管控、设备管理、控制系统升级、工艺优化和现场监督等方面提出了控制措施,确保气体渗碳质量稳定可靠。

A brief introduction was given to gas carburizing process,combined with the actual production situation,common carburization quality problems were introduced and the causes were analyzed,including the carbon potential was not up to standard due to the unqualified penetrant.Uneven carburization layer caused by surface contamination of workpieces,equipment fan failure or large furnace loading of workpieces.Due to improper operation after carburization,the surface of the workpiece was decarburized.Cracking caused by high carbon concentration on the surface of the workpiece.The lack of refinement in the carburization process lead to excessive carburization layer.Preventive measures for quality control in the carburization process had been proposed,including personnel training,process material control,equipment management,control system upgrade,process optimization and on-site supervision,to ensure stable and reliable gas carburization quality.