This paper discuss recent developments in mesh belt heat treating systems used in the production of automotive fasteners. Methods for heat treating threaded fasteners have evolved significantly over the last 20 years as low-capacity shaker hearth, rotary hearth, and plate-belt systems are replaced by soft handling mesh belt heat treatment systems. Design innovations for improving the accuracy of tempering furnace tolerance bands and integrating inline zinc phosphate removal systems are discussed along with their respective benefits.

automotive fasteners, heat treating, mesh belt furnaces, phosphate removal, temperature uniformity
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2021
ASM International
Topics
Automobiles and trucks Threaded fasteners Heat-treating furnaces Heat treatment Temperature
Issue Section:
Applied Technology