Steel MakingPreventing Carburizing By Copper-platingCopper-plating has been found effective and must have a thick... Annealing Of Rifle Components At Springfield Armory In general, all forgings of the components of the arms manufa... Annealing Method Forgings which are too hard to machine are put in pots with ... Open Hearth Process The open hearth furnace consists of a big brick room with a l... Phosphorus PHOSPHORUS is an element (symbol P) which enters the metal fr... The Theory Of Tempering Steel that has been hardened is generally harder and more br... Gears The material used for all gears on the Liberty engine was sel... Detrimental Elements Sulphur and phosphorus are two elements known to be detrimen... The Effect The heating at 1,600 deg.F. gives the first heat treatment w... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... Cutting-off Steel From Bar To cut a piece from an annealed bar, cut off with a hack saw,... Hardening High-speed Steel In forging use coke for fuel in the forge. Heat steel slowly ... Gas Consumption For Carburizing Although the advantages offered by the gas-fired furnace for ... S A E Heat Treatments The Society of Automotive Engineers have adopted certain heat... Compensating Leads By the use of compensating leads, formed of the same materia... Flange Shields For Furnaces Such portable flame shields as the one illustrated in Fig. 1... Silicon SILICON is a very widespread element (symbol Si), being an es... The Packing Department In Fig. 56 is shown the packing pots where the work is packe... Chrome-nickel Steel Forging heat of chrome-nickel steel depends very largely on ... Brown Automatic Signaling Pyrometer In large heat-treating plants it has been customary to mainta... |
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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