Steel Structure Weld Heater Is Under Ues in the Wajiatan Yellow River Grand Bridge Construction

What is induction steel structure weld heater and its affects.An induction weld preheating system is introduced to structural steels weld process to improve...

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What is induction steel structure weld heater and its affects.An induction weld preheating system is introduced to structural steels weld process to improve the welding quality and save the weld time. Inductive preheating is effected prior to welding, an induction coil is used to introduce energy to a targeted area of the welding seam. In this way, the steel is preheated to a desired temperature without direct contact. After the subsequent welding step, the resulting seams are less brittle, fracture strain values are better, and hot cracks can be avoided. With this process, steel sheets can be welded with a single-layer, and time and material can be significantly saved.This weld preheating is fit for high-strength, fine-grain structural steels with yield strengths crane, pump, pipeline and bridge construction, and in offshore structures and systems. The heating power choice depends on the welding seams length, sheet thickness and max temperature.

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