An integrated system for in-situ stress detection and repair

Abstract

The invention discloses an integrated system for in-situ stress detection and repair, which includes a stress detection module, a stress repair module, a cooling module, a stress re-inspection module and a mobile control system for controlling the displacement and feed speed of the integrated system. The detection module and the stress re-inspection module each include a plurality of MDL sensors arranged in an array above the surface of the ferromagnetic steel; the stress repair module includes a plurality of induction heating coils arranged in an array above the surface of the ferromagnetic steel; The cooling device for quenching treatment in the area that has just been heat-treated by the plurality of induction heating coils; the stress detection module, the stress repair module, the cooling module and the stress re-inspection module are provided with infrared positioners at different positions of each module; the stress repair modules are different. The location is equipped with an infrared thermometer for temperature testing and recording. The invention is applied to the in-situ stress relief repair on the industrial production line, and greatly improves the efficiency on the basis of ensuring the stress relief quality.

Description

technical field [0001] The invention belongs to the field of metal processing residual stress repair, in particular to an in-situ stress detection and repair integrated system integrated with stress detection and stress repair applied to industrial production lines. Background technique [0002] The iron and steel industry is one of the basic industries of my country's national economy, and it plays an important role in the development of the national economy. However, due to my country's innate technical limitations in the field of steel production and manufacturing, the factory inspection technology has made my country's steel production volume huge, but the pass rate is low, and it was not even accepted by European and American countries for a time. Most steel products are self-produced and sold. Residual stress is mainly due to the internal stress remaining inside the material after machining and thermal processing and maintaining internal balance. If it is not treated, ...

AI Technical Summary

Problems solved by technology

However, this method can only perform stress relief operations on finished products after leaving the factory, and requires direct contact with the workpiece (actually, the workpiece needs to be clamped by a vibrator). After 1 hour of vibration aging, about 50% of the residual stress can be eliminated. However, the stress cannot be completely eliminated. Although the operation time is relatively short compared to the failure of heat treatment, it still needs to wait for a period of time.

Therefore, the above two stress relief methods are not suitable for use in industrial production lines as in-situ stress relief and repair procedures.

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