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This article is a compilation of best practices, materials, and techniques for the design and manufacture of modern induction forge coils. It presents the basics of induction coil design along with various design considerations, namely, copper tube selection, water flow considerations, and brazing and fabricating the copper coil winding for heating billets, bars, and slabs. The article describes refractory selection criteria and the methods of mounting and securing the induction coil winding, and presents general refractory installation guidelines for induction heating applications. It provides information on curing, form removal, dryout, and coil refractory seasoning. Wear rails that are designed to prevent damage to the coil refractory and subsequent coil winding are also discussed. The article concludes with a discussion on preventive maintenance practices for induction forging coils.

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Joe Stambaugh, Design and Fabrication of Induction Coils for Heating Bars, Billets, and Slabs, Induction Heating and Heat Treatment, Vol 4C, ASM Handbook, Edited By Valery Rudnev, George E. Totten, ASM International, 2014, p 607–618,

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