File:The Iron and steel magazine (1898) (14767400805).jpg

Identifier: ironsteelmagazin10sauv (find matches)
Title: The Iron and steel magazine
Year: 1898 (1890s)
Authors: Sauveur, Albert, 1863-1939
Subjects: Metallography Iron Steel
Publisher: Cambridge, Mass. (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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tool hardened at thehead, J inch in diameter. One-half inch away from the joint the depression was 0.1432inches. Three feet away from the joint the depression was 0.1596inches. The electric conductivity of the Thermit joint is recognizedto be higher than that of the rail, due to increase of area, and ispermanent. 77/1- llicrmit Process in American Practice 221 That steel foundries should liave been the first to recognizethe possibilities of liquid steel that can be produced anywherein half a minute goes without saying. There are already severalof the largest with whom Thermit is as much a necessity as foun-dry sand. Some prefer — for no apparent reason — not todisclose the fact that they repair faults in castings by Thermit,but all can openly admit that they use it to reduce the size oftheir risers, an application which, through its simplicity, recom-mends itself to all foundries, — gray iron as well as steel. Ther-mit thrown loosely or in a paper parcel on steel will ignite and
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Welding Trolley Rail at Holyoke, Mass. keep the contents of the riser fluid even after the metal hasbecome plastic in the casting. Liquid cast iron will only igniteThermit in the presence of the ignition powder. The application of Thermit to reduce the piping in ingots,although very simple in itself, necessitates some liquid steelbeing held in readiness to fill up the piping after the solidifica-tion has been interru)jted by a thermit reaction. This shouldnot be impossible to arrange. 222 The Iron and Steel Magazine RiEHLE Bros., Testing Machine Company TESTS ON MALLEABLE IRON BARS CAST AT PENNSYLVANIA MAL-LEABLE companys WORKS, McKEES ROCKS, PA. Before Titanium Thermit Reaction No. I— Dimensions Ultimate Strength,Poimds Deflection I—I i.ooo X .999 4,100 1.00 I 2 ■995 X .999 4,500 .98 1—3 Lost in anneal 2—7 1.060 X .998 4,540 1.28 2—8 1.012 X 1.006 4,610 1.40 2—9 1.006 X 1.005Average 4,500 1.40 before treatment 4,450 1.212 After Titanium Thermit Reaction No. Dimensions U

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