Axis from a Seamless Tube for Railway Vehicles and a process for the manufacture of an Axis from a Seamless Steel Pipe for Rail Vehicles

摘要

The axis of the invention is made of seamless sewing pipe, with appropriate chemical composition to ensure high-strength fatigue, enhance elastic limit and enhance tensile strength, and the weight used for railway vehicles is small. The invention also relates to a process of forging an axis with a non sewn steel tube, which has a strong fatigue strength, an elastic limit and an improved tensile strength, but the weight used for railway vehicles is small, and the steel or waste material made of iron, Empty, heater,1. Crowbar drill, drilled extension bar, drilled hole, casting and processing, including a support bracket, with emphasis on the internal edge of the end inspection hole and the flat hole at the entrance of sweet hole.