Process for surface treating a spring steel wire comprises nitriding the wire surface in such a way that a diffusion layer is formed on the whole surface of the wire without using a connecting layer between the diffusion layer and the wire

摘要

Process for surface treating a spring steel wire comprises nitriding the wire surface in such a way that a diffusion layer is formed on the whole surface of the wire without using a connecting layer between the diffusion layer and the wire. Preferred Features: The duration and temperature of the nitriding are determined based on the spring geometry and the diameter of the spring steel wire. The spring steel material is made from a silicon-chromium alloy.