Induction normalizing method for steel rail

Abstract

The invention relates to an induction normalizing method for a steel rail. The method applying an induction heating technology to a normalizing process of seamless welding of a track comprises the following steps: first, carrying out medium frequency induction heating to the normalizing temperature of 840-880 DEG C and keeping the temperature for 8-10 minutes; then introducing cold water into a designed novel induction coil to water cool the induction heated steel rail, wherein the integral steel rail is cooled by water; and finally, naturally cooling the steel rail to room temperature when the temperature of the steel rail is reduced to 445-455 DEG C. Compared with the prior art, by applying induction heating to normalizing of track welding, the environmental pollution problem in the prior art is reduced, the heating speed and the heating efficiency are improved effectively, the time of the whole normalizing process is shortened greatly, and the demand of automation is easily met.

Description

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AI Technical Summary

Benefits of technology

This patented technical solution described in this patents allows for faster heat treatments while maintaining good quality standards such as appearance or performance. It uses inductive heating instead of traditional methods like gas furnace heating (FCA). By applying electromagnetic force from one loop antenna to another loop antennas placed next to each other at right angles, there will generate strong currents within the rails themselves causing them to become hotter than their surrounding areas. These techniques allow for efficient thermal processing and reduced costs compared to previous methods. Additionally, they use closed water-based systems rather than air based ones due to safety concerns associated with these processes. Overall, this new approach improves the overall process results and reduces manufacturing costs.

Problems solved by technology

This technical problem addressed by this patented technology relates to regularized treatment methods used when producing high strength steels with improved resistance against corrosion damage caused by exposure to environments such as salt water (sodium chloride) without causing any harmful effects upon these materials themselves.

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