Pipe induction heating equipment inductor

Abstract

The invention relates to the technical field of pipe induction heating equipment annealing technologies, especially a pipe induction heating equipment inductor. The inductor comprises a first inductor winding, a second inductor winding and a third inductor winding, and is characterized in that: the first inductor winding, the second inductor winding and the third inductor winding are wound on the outer surface of a workpiece along the workpiece operation direction in order, wherein the first inductor winding, the second inductor winding and the third inductor winding have different and increasing turns of induction heating coils. The pipe induction heating equipment inductor provided by the invention adopts three inductor windings with different turns of induction heating coils to eliminate the residual stress of products after solution annealing, improves multiple indicators of the weld microstructure, grain structure and extensibility, greatly upgrades the product quality, and obviously enhances the heat treatment work efficiency and product quality to meet market demands.

Description

technical field [0001] The invention relates to the technical field of annealing of a pipe induction heating device, in particular to an inductor of a pipe induction heating device capable of constant temperature and heat preservation. Background technique [0002] At present, the induction heating coils of the inductors of the existing pipe induction heating devices are evenly distributed, and when multiple groups of parallel applications are used, each group of coils strives to have the same size and number of turns, so as to obtain a relatively balanced induction heating power on the unit length of the workpiece; Such as figure 1 Shown: Inductor winding, Group 1, Group 2, and Group 3 have the same shape and number of turns, the temperature of the workpiece covered by Group 1 rises exponentially from the base temperature (room temperature), and when the workpiece moves to Group 2 Has been heated to a relatively high temperature level, the power induced by the workpiece un...

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Problems solved by technology

[0003] In order to solve the problem that the induction heating coils of the existing pipe induction heating device are evenly distributed, it cannot be kept at a constant temperature after solid solution annealing, and many indicators such as pipe structure, grain structure, and elongation performance cannot meet the requirements, which reduces the quality of the product. quality, unable to meet the market demand, a pipe induction heating device inductor is proposed, which eliminates the residual stress of the product after solution annealing, improves the weld structure, grain structure, and multiple indicators of elongation performance, making the product The quality has been greatly improved, and the work efficiency and product quality of heat treatment have been significantly improved to meet market demand

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