20NCD2

18CrNiMo7-6鋼模數為15.25齒塊在Aichelin可控井式爐與齒輪零件一起進行滲碳，滲碳溫度930℃，強滲碳勢1.10%～1.20%，強滲時間H1分別為20h、28h、40h，擴散碳勢0.65%～0.75%，擴散時間H2分別為7h、9h、16h，然后降溫至850℃入緩冷爐，溫度降至600℃以下出爐空冷。在Aichelin可控氣氛多用爐進行加熱淬火，加熱溫度為820～850℃，保溫5h入光亮淬火油淬火，160～200℃低溫回火5h×2空冷，清理拋丸，在KXS-226P數控噴丸機進行強力噴丸，噴丸強度為阿爾門A試片弧高值0.4～，表mian覆蓋率為200%。

20NCD2


牌號：20NCD2
標準：NF
特性及應用：
20NCD2特種鋼，法國NF合結鋼
化學成分：
碳 C：0.18-0.23；
硅 Si: 0.10-0.40
錳 Mn：0.70-0.90;
磷 P：≤0.030;
硫 S：≤0.025;
鉻 Cr：0.40-0.60
鉬 Mo：0.15-0.30
鎳 Ni：0.40-0.70
銅(tong) Cu：≤0.35;

20NCD2

20NCD2

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