By K. Strauss
Utilized technology within the Casting of Metals specializes in metallurgical operations.
The e-book first discusses the manufacture of iron and metal. matters contain therapy of liquid iron and metal; therapy of molten iron among blast furnace and steelworks; and remedy of liquid metal. The textual content takes a glance at casting pit perform, together with ingot feeding, sizzling topping of alloy steels, equipment of utilising hot-tops, and hot-topping tools.
The choice makes a speciality of spray metal making and non-stop casting of metal. the method all in favour of spray metal making; the fundamental ideas of casting of metal; and metallurgical facets are mentioned. The textual content describes the remedy of forged iron; therapy of non-ferrous heavy metals; remedy of aluminum and magnesium alloys; and remedy of molding sand from molds and cores.
The booklet explains the feeding of metal castings. subject matters comprise improvement of exothermic feeding; mechanisms of alumino-thermic reactions; purposes of exothermics to metal castings; and floor additions.
The textual content is a invaluable resource of knowledge for readers drawn to metallurgical operations.
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Additional info for Applied Science in the Casting of Metals
8. Heat loss by absorption and conduction. Anti-piping compound application rates also depend upon ingot size and the nature of the product to be used. The most important factor is to provide and maintain a continuous layer over the whole top surface of the head metal throughout solidification. This can be done by using either a compound which burns and forms a self-supporting crust or a material which, when burnt, gives powdery residues which feed down with the steel and form a coherent cover.
22. Partly inserted exothermic head. If an exothermic head is designed to be only partly inserted (Fig. 22) or superimposed (Fig. 23), support must be given to the exposed portion of the head and weight must be supplied to overcome buoyancy forces. This is con veniently done by forming the necessary counterweight into an annular ring which will fit closely to the outside of the head and give good support. It should be noted that a small part of most superimposed sleeves is inserted into the mould.
The standing or "track" time can be defined as the period between teeming the last ingot of a bogie train and movement of the train to a railway siding or stripper bay. The danger of moving ingots during the middle and late stages of solidification is proven by the recurrence of poor segregation patterns at the billet stage and consequent reduced yields. An investigation has been carried out by a steelworks on steel qualities of (A) below 0-40% carbon and (B) above 0-40% carbon, using both 12-4% gross and 10-6% gross super-insulator head volumes, and coverings of a good quality exothermic feeding compound.
Applied Science in the Casting of Metals by K. Strauss