Salt Bath

Salt Bath Heat Treatment has many advantages. When heat treating parts of thin wall section, salt being a liquid medium gives support to the parts being treated, avoiding unnecessary distortion. Heat transfer into components is very rapid and uniform. Salt bath gives the Heat Treater flexibility, with various Quenching methods, i.e oil, water, polymer, or into another salt bath for Marquenching or Austempering. Protection from oxidation and decarburisation is given by the salt during heating and also during the transfer to the Quench.

When Carburising or case hardening in salt baths, case depths can be very tightly controlled, and the shallow case depths are achieved with ease. End only treatments are a useful plus for salt baths, as this can eliminate the expensive cost of plating or remachining.

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