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Steel MakingCorrosionThis steel like any other steel when distorted by cold worki... Annealing Of Rifle Components At Springfield Armory In general, all forgings of the components of the arms manufa... Nickel Nickel may be considered as the toughest among the non-rare a... The Packing Department In Fig. 56 is shown the packing pots where the work is packe... Short Method Of Treatment In the new method, the packed pots are run into the case-har... Tensile Properties Strength of a metal is usually expressed in the number of pou... Heating Of Manganese Steel Another form of heat-treating furnace is that which is used ... Effect Of Different Carburizing Material [Illustrations: FIGS. 33 to 37.] Each of these different p... The Effect The heating at 1,600 deg.F. gives the first heat treatment w... Pickling The Forgings The forgings were then pickled in a hot solution of either ni... The Care Of Carburizing Compounds Of all the opportunities for practicing economy in the heat-t... Highly Stressed Parts The highly stressed parts on the Liberty engine consisted of ... Hardening Carbon Steel For Tools For years the toolmaker had full sway in regard to make of st... Double Annealing Water annealing consists in heating the piece, allowing it to... Impact Tests Impact tests are of considerable importance as an indication ... Oil-hardening Steel Heat slowly and uniformly to 1,450 deg.F. and forge thorough... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... Introduction Of Carbon The matter to which these notes are primarily directed is the... Preventing Carburizing By Copper-plating Copper-plating has been found effective and must have a thick... William Kelly's Air-boiling Process An account of Bessemer's address to the British Association w... |
Affinity Of Nickel Steel For CarbonCategory: HEAT TREATMENT OF STEEL The carbon- and nickel-steel gears are carburized separately owing to the difference in time necessary for their carburization. Practically all printed information on the subject is to the effect that nickel steel takes longer to carburize than plain carbon steel. This is directly opposed to the conditions found at this plant. For the same depth of case, other conditions being equal, a nickel-steel gear would require from 20 to 30 min. less than a low carbon-steel gear. From the quenching machines, the gears go to the sand-blasting machines, situated in the wing of the heat-treating building, where they are cleaned. From here they are taken to the testing department. The tests are simple and at the same time most thorough. Next: Testing And Inspection Of Heat Treatment Previous: The Effect
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