Steel MakingQuality And StructureThe quality of high-speed steel is dependent to a very great ... Short Method Of Treatment In the new method, the packed pots are run into the case-har... Fatigue Tests It has been known for fifty years that a beam or rod would fa... Manganese Manganese adds considerably to the tensile strength of steel,... Brown Automatic Signaling Pyrometer In large heat-treating plants it has been customary to mainta... Corrosion This steel like any other steel when distorted by cold worki... Preventing Decarbonization Of Tool Steel It is especially important to prevent decarbonization in such... Suggestions For Handling High-speed Steels The following suggestions for handling high-speed steels are ... Refining The Grain This is remedied by reheating the piece to a temperature slig... Affinity Of Nickel Steel For Carbon The carbon- and nickel-steel gears are carburized separately... 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... Steel For Chisels And Punches The highest grades of carbon or tempering steels are to be re... Machineability Reheating for machine ability was done at 100 deg. less than ... Preventing Carburizing By Copper-plating Copper-plating has been found effective and must have a thick... Connecting Rods The material used for all connecting rods on the Liberty engi... Annealing Method Forgings which are too hard to machine are put in pots with ... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... Effect Of Different Carburizing Material [Illustrations: FIGS. 33 to 37.] Each of these different p... High-carbon Machinery Steel The carbon content of this steel is above 30 points and is ha... Carbon In Tool Steel Carbon tool steel, or tool steel as it is commonly called, us... |
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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