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Applied Science in the Casting of Metals focuses on metallurgical operations. The book first discusses the manufacture of iron and steel. Concerns include treatment of liquid iron and steel; treatment of molten iron between blast furnace and steelworks; and treatment of liquid steel. The text takes a look at casting pit practice, including ingot feeding, hot topping of alloy steels, methods of applying hot-tops, and hot-topping methods. The selection focuses on spray steel making and continuous casting of steel. The process involved in spray steel making; the basic principles of casting of steel; and metallurgical aspects are discussed. The text describes the treatment of cast iron; treatment of non-ferrous heavy metals; treatment of aluminum and magnesium alloys; and treatment of molding sand from molds and cores. The book explains the feeding of steel castings. Topics include development of exothermic feeding; mechanisms of alumino-thermic reactions; applications of exothermics to steel castings; and surface additions. The text is a valuable source of data for readers interested in metallurgical operations.
The aim of each volume of this series Guides to Information Sources is to reduce the time which needs to be spent on patient searching and to recommend the best starting point and sources most likely to yield the desired information. The criteria for selection provide a way into a subject to those new to the field and assists in identifying major new or possibly unexplored sources to those who already have some acquaintance with it. The series attempts to achieve evaluation through a careful selection of sources and through the comments provided on those sources.
According to estimates, modern foundries in Germany, Europe and worldwide replace about 70 % of their lost moulds with moulds made of bentonite-bonded materials. The main mould components are quartz sand, bentonite and water. These components are compacted in one of the most productive procedures in the foundry. One of the main advantages of this moulding material system is the ability to restore the bonding power of most of the material. This ability creates a moulding material circulation system. This system and the use of mostly inorganic moulding materials make this creation of moulds the most environmentally friendly choice for the cast part production. Because of this circulation of moulding materials and specifically because of the bentonite/water bonding system, the preparation of moulds made from bentonite-bonded moulding materials is very different from making moulds and cores using materials with chemical binders. This manual describes the handling and preparation of bentonite-bonded moulding materials as well as the moulding material recovery and re-use after forming the cast part.