链轨总成 SD16
1.链轨节
1)材质:35 MnB或40Mn2
2)热处理工艺:调质:30-36HRC+踏面中频淬火:48-54HRC,
3)加工工艺:铣侧面――钻螺孔――冲方――粗镗孔――热处理――抛丸――探伤――精镗孔、止口及倒角
2.销套
1)材质:推土机:20CrMnTi
挖掘机:40CrB或35CrMo
2)热处理工艺:推土机:渗C+内外表面中频淬火54-60HRC。
挖掘机:整体淬火48-53HRC。
3)加工工艺:下料――平头倒角――热处理――磨外圆
3.销轴
1)材质:50Mn
2)热处理工艺:轴:调质:25-30HRC+外表面中频淬火:54-60HRC。
3)加工工艺:下料――平头倒角――热处理――磨外圆
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