Chromium - vanadium steel wire rod, wire and springs - high duty ground wire - hardenedandtempered - specification.
铬钒钢盘条金属丝和弹簧。高负荷地线。淬火和回火。规范。
2
Having studied the relationship between tempered hardness and tempering temperature for hardened carbon steels, a tempering behaviour model is set up between hardness and temperature.
研究了淬硬钢回火硬度与回火温度的关系，建立了回火硬度与回火温度关系的回火效应模型。
3
The results revealed that the non homogeneous distribution of the carbide caused the "zonal structure" appeared in the joint of drill rod which is hardenedand high temperature tempered.