Steel rail on-line wind-jet quenching heat treatment simulation experiment device

Abstract

The invention relates to a steel rail on-line wind-jet quenching heat treatment simulation experiment device, and belongs to the technical field of steel metallurgy. The experiment device is composed of the structures of: a Laval-type flat-slot nozzle system, a steel rail guiding system, a frame system, a valve system, a compressed air pipe system, a roller way system, a detection instrument system, a steel rail heating furnace system, and the like. With wind, water, heating furnace, and roller way conditions in an experimental innovation platform in metallurgical rolling, a steel rail on-line wind-jet quenching heat treatment simulation experiment device is designed and manufactured, and a steel rail on-line wind-jet quenching heat treatment simulation experiment method is developed. The method and the device are used for carrying out heavy rail full-length on-line quenching simulation experimental researches. The experiment method is simple and reliable. With the method, heavy rail full-length on-line quenching process research period can be greatly shortened, and process research cost can be reduced. The method is a feasible method of laboratory simulation research currently. With the device and he method, technical support can be provided for a heavy rail full-length on-line quenching production line.

Description

1. Technical field [0001] The invention belongs to the technical field of iron and steel metallurgy, and in particular relates to a simulation experiment device for online blast quenching heat treatment of steel rails. 2. Background technology [0002] my country is the largest steel producing country in the world, but there is still a considerable gap in the variety and quality of steel products compared with foreign advanced levels, and there is still a considerable amount of steel products that need to be imported. [0003] Modern steel production has achieved large-scale, continuous and automated production. This large-scale modern steel production process puts forward strict requirements on the experimental research work on technologies, processes, equipment, and products of steelmaking and steel rolling. [0004] For this reason, it is necessary to build and rely on a small-scale smelting and rolling pilot test innovation platform for new product development, and to c...

AI Technical Summary

Problems solved by technology

[0013] Although the full-length rail heat treatment process implemented in the early 1960s can more than double the service life of the rail, due to the high energy consumption, low productivity, and high cost of the off-line heat treatment method, it cannot be mass-produced synchronously with the rolling mill

[0026] The disadvantages of fog cooling are unstable thermal conductivity and turbulent flow due to volatilization of heat energy.

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