The document discusses the process of quenching metals and the factors that influence it. It describes the three stages of quenching - vapor phase, nucleate boiling phase, and convection phase. It also discusses the selection and composition of quench oils, how they affect the cooling rate and properties of quenched metals. The additive packages in quench oils are described as improving thermal stability and cooling performance.

1. Quenching – Mastering the Process D. Scott MacKenzie, PhD, FASM November 2011 Quenching Oil Selection

4. Quenching – Mastering the Process Vapor Phase Nucleate Boiling Phase Convection Phase

5. Quenching – Mastering the Process

23. Quench Oil Composition – Base Oils

27. Quench Oil Composition – Additive Packages

31. Oil Degradation The presence of calcium and sulfur in the stain shows that the material is baked on quench oil. Oil is near end of life.

32. Quenching Products from Houghton Cold Quenching Oils Houghto-Quench K Houghto-Quench G Houghto-Quench 3440 Houghto-Quench 3430 Dasco Quench LPA 15 Dasco Quench LBA 15 Aqueous Quenchants Aqua-Quench 140 Aqua-Quench 145 Aqua-Quench 245 Aqua-Quench 251 Aqua-Quench 260 Aqua-Quench 3699 Aqua-Quench C Email cfaulkner@houghtonintl.com for more information. Hot Quenching Oils Mar-Temp 355 Dasco Quench MPA 60 Below is a sampling of Houghton quenchants. However, you should consult a Houghton expert for the right product for your application.

34. Worldwide Coverage… One Company Over 2,000 employees in 31 countries with manufacturing and research facilities in 21 locations. Houghton helps customers around the world save on overall process chemical and disposal costs while improving production and part quality.

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