By K. Strauss
Utilized technology within the Casting of Metals specializes in metallurgical operations.
The booklet first discusses the manufacture of iron and metal. issues contain remedy of liquid iron and metal; therapy of molten iron among blast furnace and steelworks; and therapy of liquid metal. The textual content takes a glance at casting pit perform, together with ingot feeding, sizzling topping of alloy steels, equipment of utilizing hot-tops, and hot-topping equipment.
The choice specializes in spray metal making and non-stop casting of metal. the method considering spray metal making; the fundamental rules of casting of metal; and metallurgical points are mentioned. The textual content describes the remedy of forged iron; remedy of non-ferrous heavy metals; remedy of aluminum and magnesium alloys; and therapy of molding sand from molds and cores.
The publication explains the feeding of metal castings. themes comprise improvement of exothermic feeding; mechanisms of alumino-thermic reactions; purposes of exothermics to metal castings; and floor additions.
The textual content is a useful resource of information for readers attracted to metallurgical operations.
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Additional info for Applied Science in the Casting of Metals
FIG. 28. Insulating tiles held by steel clips. -MOULD WALL — INSULATING SLAB BACKING WASHER FIG. 29. Section through a securing nail. A less expensive method of holding non-wedging assemblies in position employs the use of a metal nail. This is fired by an explosive charge from a specially designed gun. The nail penetrates the insulator and enters the surface of the ingot mould. A backing washer gives a greater area of support to the nail head. With such a method it is necessary to adjust the nail length and cartridge charge for diflfering thicknesses of insulating tile.
Thus it is not normally recommended that thicknesses in excess of 30 mm are used except in special circumstances. It must be stressed that such arguments can only be applied to materials with excellent insulating properties and inferior results will almost certainly be obtained if less efficient insulators are employed at the same thicknesses. z o o 2000 O z o o O z < 1500 O ^ CD 3 CO < O 1000 500 CO o < LL) X FIG. 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.
FIG. 31. Typical nail pattern on large tile with hanging ledges. in a pattern which will prevent metal penetration between tile and mould. Figure 29 illustrates a section through a securing nail, Fig. 30 shows a nailfiring gun being used to secure insulating tiles hanging on incorporated ledges and Fig. 31a typical nail pattern on large tiles. A number of proprietary guns is available most of which incorporate devices ensuring complete safety in use. It should be noted that nail residues must be removed before subsequent application of tiles.