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Steel MakingCorrosionThis steel like any other steel when distorted by cold worki... The Theory Of Tempering Steel that has been hardened is generally harder and more br... Carburizing Material The simplest carburizing substance is charcoal. It is also th... Hardening The forgings can be hardened by cooling in still air or quen... Liberty Motor Connecting Rods The requirements for materials for the Liberty motor connecti... Annealing ANNEALING can be done by heating to temperatures ranging from... The Forging Of Steel So much depends upon the forging of steel that this operation... Preventing Carburizing By Copper-plating Copper-plating has been found effective and must have a thick... Hardening Steel is hardened by quenching from above the upper critical.... Furnace Data In order to give definite information concerning furnaces, fu... Care In Annealing Not only will benefits in machining be found by careful anne... Effect Of Different Carburizing Material [Illustrations: FIGS. 33 to 37.] Each of these different p... Impact Tests Impact tests are of considerable importance as an indication ... Pickling The Forgings The forgings were then pickled in a hot solution of either ni... Classifications Of Steel Among makers and sellers, carbon tool-steels are classed by g... Conclusions Martien was probably never a serious contender for the honor ... Molybdenum Molybdenum steels have been made commercially for twenty-five... Flange Shields For Furnaces Such portable flame shields as the one illustrated in Fig. 1... Tempering Colors On Carbon Steels Opinions differ as to the temperature which is indicated by t... Machineability Reheating for machine ability was done at 100 deg. less than ... |
The Penetration Of CarbonCategory: CASE-HARDENING OR SURFACE-CARBURIZING Carburized mild steel is used to a great extent in the manufacture of automobile and other parts which are likely to be subjected to rough usage. The strength and ability to withstand hard knocks depend to a very considerable degree on the thoroughness with which the carburizing process is conducted. Many automobile manufacturers have at one time or another passed through a period of unfortunate breakages, or have found that for a certain period the parts turned out of their hardening shops were not sufficiently hard to enable the rubbing surfaces to stand up against the pressure to which they were subjected. So many factors govern the success of hardening that often this succession of bad work has been actually overcome without those interested realizing what was the weak point in their system of treatment. As the question is one that can create a bad reputation for the product of any firm it is well to study the influential factors minutely. Next: Introduction Of Carbon Previous: Preparing Parts For Local Case-hardening
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