[关键词]
[摘要]
在系统地对同规格的５５ＣｒＳｉＡ与ＪＩＳ Ｇ３５６６－７７油淬火钢丝的成分、组织、残留元素及力学性能进行了复查，并按相同工艺制成ＦＭ１４７发动机气阀弹簧做了比较试验后发现：该种弹簧钢丝与日本弹簧钢丝在质量上略有差距。
[Key word]
[Abstract]
The qualities of 55CrSiA oil tempered spring steel wire and not as good as that of JIS G3566-77. This conclusion resulted from the comparative tests which were for the valve springs of FM147 Engine being seperately made of the two kinds of spring steel wires mentioned above acording to the same processing and test methods.
[中图分类号]
TG142.41
[基金项目]
