Steel Heat Treating Technologies
Salt Bath Heat Treatment and Equipment
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Published:2014
Abstract
This article provides information on the salt baths used for a variety of heat treatments, including heating, quenching, interrupted quenching (austempering and martempering), case hardening, and tempering. It describes two general types of salt bath systems for steel hardening: the first type uses atmosphere austenitizing followed by salt quench and the second type employs austenitizing salt baths with rapid transfer to the quench salt. The article provides a detailed account on the construction, advantages and disadvantages, and limitations of isothermal quenching furnaces, submerged-electrode furnaces, immersed-electrode furnaces, and externally heated furnaces. It discusses the important applications of various furnace designs,...
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ASM members
Member Sign InW. James Laird, Jr., Salt Bath Heat Treatment and Equipment, Steel Heat Treating Technologies, Vol 4B, ASM Handbook, Edited By Jon L. Dossett, George E. Totten, ASM International, 2014, p 220–232, https://doi.org/10.31399/asm.hb.v04b.a0005929
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