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Andrew Poulson
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B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Abstract
8180. Poulson, A. April 1. Case-hardening.-Sand moulds are dusted or painted with crude or refined antimonide of iron, before coating with asbestos or magnesia and silicate of soda, in order to case-harden the article cast.
GB191108180D1911-04-011911-04-01Improvements relating to the Treatment of Moulds for Making Metal Castings.
ExpiredGB191108180A
(en)
Process for the electrolytic oxidation of iron, steel, cast iron and copper, as well as other metals previously coated with an electrolytically deposited layer of iron or copper