. Canadian foundryman (1921). /=>>/ 1 ^?•\\.;\:;,:\:-iu\uwv\\u^^^w: fofesr:. FIG. 1.—Cross section of mold and flask for solid roll. FIG. 4.—Showing cored out roll which must be made by different process. August, 1921 CANADIAN FOUNDRYMAN that the casting will be useless. How-ever, an iron to make a good roll shouldbe low in silicon and low in sulphur andthe combined carbon will automaticallybe high enough. If iron containing sili-con .8, Phos. .6, Manganese, .4, is melted in a fast melting cupolawith plenty of fuel and blast, some ofthe silicon will burn out and some
. Canadian foundryman (1921). /=>>/ 1 ^?•\\.;\:;,:\:-iu\uwv\\u^^^w: fofesr:. FIG. 1.—Cross section of mold and flask for solid roll. FIG. 4.—Showing cored out roll which must be made by different process. August, 1921 CANADIAN FOUNDRYMAN that the casting will be useless. How-ever, an iron to make a good roll shouldbe low in silicon and low in sulphur andthe combined carbon will automaticallybe high enough. If iron containing sili-con .8, Phos. .6, Manganese, .4, is melted in a fast melting cupolawith plenty of fuel and blast, some ofthe silicon will burn out and some sul-phur will be absorbed but the resultantmetal should make clean sound castingswith good wearing qualities, and wouldbe almost the same without the chill,but the chill sets the grain on the sur-
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfoundri, bookyear1921
