Foundry Manual

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This Manual is intended primarily for use by foundry personnel aboard repair ships and tenders. The recommended practices are based on procedures proved workable under Navy conditions and are supplemented by information from industrial sources.The Manual is divided into two general sections. The first section, chapters 1 through 13, contains information of a general nature, such as "How Metals Solidify, " "Designing a Casting, " "Sands for Molds and Cores, " "Gates, Risers, and Chills, " and "Description and Operation of Melting Furnaces." Subjects covered in these chapters are generally applicable to all of the metals that may be cast aboard ship.The second section, chapters 14 through 21, contains information on specific types of alloys, such as "Copper-Base Alloys, " "Aluminum-Base Alloys, " "Cast Iron, " and "Steel." Specific melting practices, suggestions for sand mixes, molding practices, gating, and risering are covered in these chapters.This manual has been written with the "how-to-do-it" idea as the principal aim. Discussions as to the "why" of certain procedures have been kept to a minimum. This manual contains information that should result in the production of consistently better castings by repair ship personnel.