کربورسازی عملیات حرارتی

1. Definition: In order to increase the carbon content of the surface layer of the workpiece and form a certain carbon content gradient in it, the low carbon steel is heated and kept warm in the carburizing medium in the carburizing furnace, so that carbon atoms penetrate into the surface of the workpiece, and then quenching is carried out. chemical heat treatment process.

2. Purpose: to increase the carbon content of the surface layer of low carbon steel to 0.85-1.10%, and then quench and temper at low temperature to eliminate stress and stabilize the structure, so that the surface layer of the steel has high hardness (HRc56-62) , increase wear resistance and fatigue strength. The heart still maintains its original plasticity and toughness.

3. Application: Carburizing is generally used for steels with low carbon content such as 15Cr and 20Cr. The depth of the carburizing layer is different according to the requirements of the parts, generally 0.2 to 2 mm.

مواد و عمق لایه کربوریزه را می توان با توجه به اندازه قطعه کار و الزامات استحکام هسته در طول طراحی انتخاب کرد.

انتخاب عمق لایه کربن دار باید با توجه به نیازهای واقعی طراحی شود تا در هزینه ها صرفه جویی شود.

افزایش عمق لایه به معنای افزایش زمان کربوریزه شدن است و عمق دنده عموماً طبق فرمول تجربی طراحی می شود.