| The five poems immediately following indicate the intense feeling of the friends of freedom in view of the annexation of Texas, with its vast territory sufficient, as was boasted, for six new slave States. Up the hillside, down the glen, Rou... Read more of Texas Voice Of New England at Martin Luther King.ca |  InformationalPrivacy |
Steel MakingUsing Illuminating GasThe choice of a carburizing furnace depends greatly on the fa... Complete Calibration Of Pyrometers For the complete calibration of a thermo-couple of unknown e... Case-hardening Treatments For Various Steels Plain water, salt water and linseed oil are the three most co... Hardening Carbon Steel For Tools For years the toolmaker had full sway in regard to make of st... Preparing Parts For Local Case-hardening At the works of the Dayton Engineering Laboratories Company, ... Protective Screens For Furnaces Workmen needlessly exposed to the flames, heat and glare from... Flange Shields For Furnaces Such portable flame shields as the one illustrated in Fig. 1... Bessemer Process The bessemer process consists of charging molten pig iron int... Carburizing Material The simplest carburizing substance is charcoal. It is also th... The Care Of Carburizing Compounds Of all the opportunities for practicing economy in the heat-t... Restoring Overheated Steel The effect of heat treatment on overheated steel is shown gra... Lathe And Planer Tools TO FORGE.--Gently warm the steel to remove any chill is parti... Vanadium Vanadium has a very marked effect upon alloy steels rich in c... William Kelly's Air-boiling Process An account of Bessemer's address to the British Association w... Composition Of Transmission-gear Steel If the nickel content of this steel is eliminated, and the pe... Pyrometers For Molten Metal Pyrometers for molten metal are connected to portable thermoc... Effect Of A Small Amount Of Copper In Medium-carbon Steel This shows the result of tests by C. R. Hayward and A. B. Joh... Hardening Steel is hardened by quenching from above the upper critical.... Quenching The Work In some operations case-hardened work is quenched from the bo... Calibration Of Pyrometer With Common Salt An easy and convenient method for standardization and one whi... |
Cutting-off Steel From BarCategory: HIGH-SPEED STEEL To cut a piece from an annealed bar, cut off with a hack saw, milling cutter or circular saw. Cut clear through the bar; do not nick or break. To cut a piece from an unannealed bar, cut right off with an abrasive saw; do not nick or break. If of large cross-section, cut off hot with a chisel by first slowly and uniformly heating the bar, at the point to be cut, to a good lemon heat, 1,800 to 1,850 deg.F. and cut right off while hot; do not nick or break. Allow the tool length and bar to cool before reheating for forging. Next: Lathe And Planer Tools Previous: Hardening High-speed Steels
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