Heat treatment method for large-size welding structure

Abstract

The invention relates to a heat treatment method for a large-size welding structure. The heat treatment method for the large-size welding structure comprises the following steps that a mold is installed, and the inner surface of the mold is coated with an insulating coating; an electrode is installed, and a to-be-treated part after welding is placed in the mold; a heat insulation insulating layer is laid, and a heat insulation insulating layer is laid on the surface of the part; a driving plate is installed, and the driving plate is bent and then attached to the heat insulation insulating layers; an induction coil is installed, the induction coil is fixed by adopting a supporting frame, and the induction coil is fixed to a welding seam area of the part through the supporting frame; local heat treatment is carried out, and the welding seam area of the part is subjected to local heat treatment through the joule heat effect generated by high-energy pulse current; shape correction is carried out, after the part reaches the preset temperature, the induction coil is connected with a magnetic pulse power supply, induction current is formed on the driving plate when the induction coil discharges, the electromagnetic force of the induction coil is transmitted to the part through the driving plate, and the shape of the part is corrected through the electromagnetic force; and the treatment is completed.

Description

Technical field[0001]The present invention relates to the field of welding techniques, and more particularly to a heat treatment method for a large-sized welding structure.Background technique[0002]The helicopter rotary wing pad is mainly composed of a composite body, preventing ice heating assemblies and leading components and leading edges, in order to ensure the anti-ice heating effect of the blade, and the leading edge edge of the anti-ice heating assembly directly eliminates Structure, but the edge of the blade has a large length direction (length of 5 to 10 meters), the wall thickness is thin (thickness is only 0.5 ~ 0.6mm), and the bending forming accuracy requires high characteristics. At present, the stainless steel room temperature is integrally bent forming And titanium alloy heat forming / laser welding, titanium alloy welding integral with high density, excellent corrosion-resistant performance, high heat formation accuracy, and high heat formation accuracy, but the thi...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a heat treatment method for large-scale welded structures. By combining high-energy pulse current and electromagnetic force, the electroplastic effect and Joule heating effect of high-energy pulse current are used to eliminate welding stress and improve the performance of welded joints. The combined action of heat and electromagnetic force realizes the local shape correction of the welding deformation zone, which solves the technical problems of high equipment requirements, difficult parts transfer, and high heat treatment costs

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